All of lore.kernel.org
 help / color / mirror / Atom feed
* [PATCH v9 00/28] New macros for assembler symbols
@ 2019-10-11 11:50 Jiri Slaby
  2019-10-11 11:50   ` Jiri Slaby
                   ` (27 more replies)
  0 siblings, 28 replies; 110+ messages in thread
From: Jiri Slaby @ 2019-10-11 11:50 UTC (permalink / raw)
  To: bp; +Cc: tglx, mingo, hpa, x86, linux-arch, linux-kernel, Jiri Slaby

So this is an updated version (v9) of the series based on comments
provided mostly by Boris and rebased on the top of current tree (quite a
few conflicting changes in assembly happened lately). See respective
patches for changes done in them since the last submission.  Now the
summary:

This series introduces new macros for assembly as was discussed [1]. The
rationale is that now we use several undocumented random macros
collected over time. There are even some defined for different
architectures differently.  In many cases, developers do not know the
difference in semantics between two basic macros END and ENDPROC. But in
this very case, the difference is crucial especially for objtool when
generating e.g. debuginfo for assembly. For this reason, we define a set
of macros with documented meanings and hopefully intuitive names. These
macros greatly support automatic tools working on the generated code
from assembly or on the assembly proper.

The macros are introduced in the first patch of the series. The rest
of patches start using these new macros in x86, converting *all* uses
of the old macros to the new ones throughout the last patch. With
every last user of some old macro, the macro is immediately made
forbidden for x86.

When this settles down, conversion of other architectures can be done
too.

For introduction, documentation, use and examples, please see
Documentation/asm-annotations.rst from the first patch of the series.

[1] https://lkml.kernel.org/r/<20170301093855.GA27152@gmail.com>

Jiri Slaby (28):
  linkage: Introduce new macros for assembler symbols
  x86/asm/suspend: Use SYM_DATA for data
  x86/asm: Annotate relocate_kernel_{32,64}.c
  x86/asm/entry: Annotate THUNKs
  x86/asm: Annotate local pseudo-functions
  x86/asm/crypto: Annotate local functions
  x86/boot: Annotate local functions
  x86/uaccess: Annotate local function
  x86/asm: Annotate aliases
  x86/asm/entry: Annotate interrupt symbols properly
  x86/asm/head: Annotate data appropriately
  x86/boot: Annotate data appropriately
  um: Annotate data appropriately
  xen/pvh: Annotate data appropriately
  x86/asm/purgatory: Start using annotations
  x86/asm: Do not annotate functions by GLOBAL
  x86/asm: Use SYM_INNER_LABEL instead of GLOBAL
  x86/asm/realmode: Use SYM_DATA_* instead of GLOBAL
  x86/asm: Kill the last GLOBAL user and remove the macro
  x86/asm: Make some functions local
  x86/asm/ftrace: Mark function_hook as function
  x86_64/asm: Add ENDs to some functions and relabel with SYM_CODE_*
  x86_64/asm: Change all ENTRY+END to SYM_CODE_*
  x86_64/asm: Change all ENTRY+ENDPROC to SYM_FUNC_*
  x86_32/asm: Add ENDs to some functions and relabel with SYM_CODE_*
  x86_32/asm: Change all ENTRY+END to SYM_CODE_*
  x86_32/asm: Change all ENTRY+ENDPROC to SYM_FUNC_*
  x86/asm: Replace WEAK uses by SYM_INNER_LABEL_ALIGN

 Documentation/asm-annotations.rst            | 216 ++++++++++++++++
 Documentation/index.rst                      |   8 +
 arch/x86/boot/compressed/efi_stub_32.S       |   4 +-
 arch/x86/boot/compressed/efi_thunk_64.S      |  33 +--
 arch/x86/boot/compressed/head_32.S           |  15 +-
 arch/x86/boot/compressed/head_64.S           |  63 ++---
 arch/x86/boot/compressed/mem_encrypt.S       |  11 +-
 arch/x86/boot/copy.S                         |  16 +-
 arch/x86/boot/pmjump.S                       |   8 +-
 arch/x86/crypto/aegis128-aesni-asm.S         |  36 +--
 arch/x86/crypto/aes_ctrby8_avx-x86_64.S      |  12 +-
 arch/x86/crypto/aesni-intel_asm.S            | 114 ++++-----
 arch/x86/crypto/aesni-intel_avx-x86_64.S     |  32 +--
 arch/x86/crypto/blowfish-x86_64-asm_64.S     |  16 +-
 arch/x86/crypto/camellia-aesni-avx-asm_64.S  |  44 ++--
 arch/x86/crypto/camellia-aesni-avx2-asm_64.S |  44 ++--
 arch/x86/crypto/camellia-x86_64-asm_64.S     |  16 +-
 arch/x86/crypto/cast5-avx-x86_64-asm_64.S    |  24 +-
 arch/x86/crypto/cast6-avx-x86_64-asm_64.S    |  32 +--
 arch/x86/crypto/chacha-avx2-x86_64.S         |  12 +-
 arch/x86/crypto/chacha-avx512vl-x86_64.S     |  12 +-
 arch/x86/crypto/chacha-ssse3-x86_64.S        |  16 +-
 arch/x86/crypto/crc32-pclmul_asm.S           |   4 +-
 arch/x86/crypto/crc32c-pcl-intel-asm_64.S    |   4 +-
 arch/x86/crypto/crct10dif-pcl-asm_64.S       |   4 +-
 arch/x86/crypto/des3_ede-asm_64.S            |   8 +-
 arch/x86/crypto/ghash-clmulni-intel_asm.S    |  12 +-
 arch/x86/crypto/nh-avx2-x86_64.S             |   4 +-
 arch/x86/crypto/nh-sse2-x86_64.S             |   4 +-
 arch/x86/crypto/poly1305-avx2-x86_64.S       |   4 +-
 arch/x86/crypto/poly1305-sse2-x86_64.S       |   8 +-
 arch/x86/crypto/serpent-avx-x86_64-asm_64.S  |  32 +--
 arch/x86/crypto/serpent-avx2-asm_64.S        |  32 +--
 arch/x86/crypto/serpent-sse2-i586-asm_32.S   |   8 +-
 arch/x86/crypto/serpent-sse2-x86_64-asm_64.S |   8 +-
 arch/x86/crypto/sha1_avx2_x86_64_asm.S       |   4 +-
 arch/x86/crypto/sha1_ni_asm.S                |   4 +-
 arch/x86/crypto/sha1_ssse3_asm.S             |   4 +-
 arch/x86/crypto/sha256-avx-asm.S             |   4 +-
 arch/x86/crypto/sha256-avx2-asm.S            |   4 +-
 arch/x86/crypto/sha256-ssse3-asm.S           |   4 +-
 arch/x86/crypto/sha256_ni_asm.S              |   4 +-
 arch/x86/crypto/sha512-avx-asm.S             |   4 +-
 arch/x86/crypto/sha512-avx2-asm.S            |   4 +-
 arch/x86/crypto/sha512-ssse3-asm.S           |   4 +-
 arch/x86/crypto/twofish-avx-x86_64-asm_64.S  |  32 +--
 arch/x86/crypto/twofish-i586-asm_32.S        |   8 +-
 arch/x86/crypto/twofish-x86_64-asm_64-3way.S |   8 +-
 arch/x86/crypto/twofish-x86_64-asm_64.S      |   8 +-
 arch/x86/entry/entry_32.S                    | 163 ++++++------
 arch/x86/entry/entry_64.S                    | 105 ++++----
 arch/x86/entry/entry_64_compat.S             |  16 +-
 arch/x86/entry/thunk_32.S                    |   4 +-
 arch/x86/entry/thunk_64.S                    |   7 +-
 arch/x86/entry/vdso/vdso32/system_call.S     |   2 +-
 arch/x86/include/asm/linkage.h               |   4 -
 arch/x86/kernel/acpi/wakeup_32.S             |   9 +-
 arch/x86/kernel/acpi/wakeup_64.S             |  10 +-
 arch/x86/kernel/ftrace_32.S                  |  19 +-
 arch/x86/kernel/ftrace_64.S                  |  42 ++--
 arch/x86/kernel/head_32.S                    |  60 ++---
 arch/x86/kernel/head_64.S                    | 108 ++++----
 arch/x86/kernel/irqflags.S                   |   8 +-
 arch/x86/kernel/relocate_kernel_32.S         |  13 +-
 arch/x86/kernel/relocate_kernel_64.S         |  13 +-
 arch/x86/kernel/verify_cpu.S                 |   4 +-
 arch/x86/kvm/vmx/vmenter.S                   |  12 +-
 arch/x86/lib/atomic64_386_32.S               |   4 +-
 arch/x86/lib/atomic64_cx8_32.S               |  32 +--
 arch/x86/lib/checksum_32.S                   |  16 +-
 arch/x86/lib/clear_page_64.S                 |  12 +-
 arch/x86/lib/cmpxchg16b_emu.S                |   4 +-
 arch/x86/lib/cmpxchg8b_emu.S                 |   4 +-
 arch/x86/lib/copy_page_64.S                  |   8 +-
 arch/x86/lib/copy_user_64.S                  |  21 +-
 arch/x86/lib/csum-copy_64.S                  |   4 +-
 arch/x86/lib/getuser.S                       |  22 +-
 arch/x86/lib/hweight.S                       |   8 +-
 arch/x86/lib/iomap_copy_64.S                 |   4 +-
 arch/x86/lib/memcpy_64.S                     |  20 +-
 arch/x86/lib/memmove_64.S                    |   8 +-
 arch/x86/lib/memset_64.S                     |  16 +-
 arch/x86/lib/msr-reg.S                       |   8 +-
 arch/x86/lib/putuser.S                       |  19 +-
 arch/x86/lib/retpoline.S                     |   4 +-
 arch/x86/math-emu/div_Xsig.S                 |   4 +-
 arch/x86/math-emu/div_small.S                |   4 +-
 arch/x86/math-emu/mul_Xsig.S                 |  12 +-
 arch/x86/math-emu/polynom_Xsig.S             |   4 +-
 arch/x86/math-emu/reg_norm.S                 |   8 +-
 arch/x86/math-emu/reg_round.S                |   4 +-
 arch/x86/math-emu/reg_u_add.S                |   4 +-
 arch/x86/math-emu/reg_u_div.S                |   4 +-
 arch/x86/math-emu/reg_u_mul.S                |   4 +-
 arch/x86/math-emu/reg_u_sub.S                |   4 +-
 arch/x86/math-emu/round_Xsig.S               |   8 +-
 arch/x86/math-emu/shr_Xsig.S                 |   4 +-
 arch/x86/math-emu/wm_shrx.S                  |   8 +-
 arch/x86/math-emu/wm_sqrt.S                  |   4 +-
 arch/x86/mm/mem_encrypt_boot.S               |   8 +-
 arch/x86/platform/efi/efi_stub_32.S          |   4 +-
 arch/x86/platform/efi/efi_stub_64.S          |   4 +-
 arch/x86/platform/efi/efi_thunk_64.S         |  16 +-
 arch/x86/platform/olpc/xo1-wakeup.S          |   3 +-
 arch/x86/platform/pvh/head.S                 |  18 +-
 arch/x86/power/hibernate_asm_32.S            |  14 +-
 arch/x86/power/hibernate_asm_64.S            |  14 +-
 arch/x86/purgatory/entry64.S                 |  21 +-
 arch/x86/purgatory/setup-x86_64.S            |  14 +-
 arch/x86/purgatory/stack.S                   |   7 +-
 arch/x86/realmode/rm/header.S                |   8 +-
 arch/x86/realmode/rm/reboot.S                |  13 +-
 arch/x86/realmode/rm/stack.S                 |  14 +-
 arch/x86/realmode/rm/trampoline_32.S         |  16 +-
 arch/x86/realmode/rm/trampoline_64.S         |  29 ++-
 arch/x86/realmode/rm/trampoline_common.S     |   2 +-
 arch/x86/realmode/rm/wakeup_asm.S            |  15 +-
 arch/x86/realmode/rmpiggy.S                  |  10 +-
 arch/x86/um/vdso/vdso.S                      |   6 +-
 arch/x86/xen/xen-asm.S                       |  28 +--
 arch/x86/xen/xen-asm_32.S                    |   7 +-
 arch/x86/xen/xen-asm_64.S                    |  34 +--
 arch/x86/xen/xen-head.S                      |   8 +-
 include/linux/linkage.h                      | 249 ++++++++++++++++++-
 124 files changed, 1475 insertions(+), 988 deletions(-)
 create mode 100644 Documentation/asm-annotations.rst

-- 
2.23.0


^ permalink raw reply	[flat|nested] 110+ messages in thread

* [PATCH v9 01/28] linkage: Introduce new macros for assembler symbols
  2019-10-11 11:50 [PATCH v9 00/28] New macros for assembler symbols Jiri Slaby
  2019-10-11 11:50   ` Jiri Slaby
@ 2019-10-11 11:50   ` Jiri Slaby
  2019-10-11 11:50 ` [PATCH v9 03/28] x86/asm: Annotate relocate_kernel_{32,64}.c Jiri Slaby
                     ` (25 subsequent siblings)
  27 siblings, 0 replies; 110+ messages in thread
From: Jiri Slaby @ 2019-10-11 11:50 UTC (permalink / raw)
  To: bp
  Cc: tglx, mingo, hpa, x86, linux-arch, linux-kernel, Jiri Slaby,
	Andrew Morton, Boris Ostrovsky, Ingo Molnar, jpoimboe,
	Juergen Gross, Len Brown, Linus Torvalds, linux-pm, Pavel Machek,
	Peter Zijlstra, Rafael J. Wysocki, xen-devel

Introduce new C macros for annotations of functions and data in
assembly. There is a long-standing mess in macros like ENTRY, END,
ENDPROC and similar. They are used in different manners and sometimes
incorrectly.

So introduce macros with clear use to annotate assembly as follows:

a) Support macros for the ones below
   SYM_T_FUNC -- type used by assembler to mark functions
   SYM_T_OBJECT -- type used by assembler to mark data
   SYM_T_NONE -- type used by assembler to mark entries of unknown type

   They are defined as STT_FUNC, STT_OBJECT, and STT_NOTYPE
   respectively. According to the gas manual, this is the most portable
   way. I am not sure about other assemblers, so this can be switched
   back to %function and %object if this turns into a problem.
   Architectures can also override them by something like ", @function"
   if they need.

   SYM_A_ALIGN, SYM_A_NONE -- align the symbol?
   SYM_L_GLOBAL, SYM_L_WEAK, SYM_L_LOCAL -- linkage of symbols

b) Mostly internal annotations, used by the ones below
   SYM_ENTRY -- use only if you have to (for non-paired symbols)
   SYM_START -- use only if you have to (for paired symbols)
   SYM_END -- use only if you have to (for paired symbols)

c) Annotations for code
   SYM_INNER_LABEL_ALIGN -- only for labels in the middle of code
   SYM_INNER_LABEL -- only for labels in the middle of code

   SYM_FUNC_START_LOCAL_ALIAS -- use where there are two local names for
	one function
   SYM_FUNC_START_ALIAS -- use where there are two global names for one
	function
   SYM_FUNC_END_ALIAS -- the end of LOCAL_ALIASed or ALIASed function

   SYM_FUNC_START -- use for global functions
   SYM_FUNC_START_NOALIGN -- use for global functions, w/o alignment
   SYM_FUNC_START_LOCAL -- use for local functions
   SYM_FUNC_START_LOCAL_NOALIGN -- use for local functions, w/o
	alignment
   SYM_FUNC_START_WEAK -- use for weak functions
   SYM_FUNC_START_WEAK_NOALIGN -- use for weak functions, w/o alignment
   SYM_FUNC_END -- the end of SYM_FUNC_START_LOCAL, SYM_FUNC_START,
	SYM_FUNC_START_WEAK, ...

   For functions with special (non-C) calling conventions:
   SYM_CODE_START -- use for non-C (special) functions
   SYM_CODE_START_NOALIGN -- use for non-C (special) functions, w/o
	alignment
   SYM_CODE_START_LOCAL -- use for local non-C (special) functions
   SYM_CODE_START_LOCAL_NOALIGN -- use for local non-C (special)
	functions, w/o alignment
   SYM_CODE_END -- the end of SYM_CODE_START_LOCAL or SYM_CODE_START

d) For data
   SYM_DATA_START -- global data symbol
   SYM_DATA_START_LOCAL -- local data symbol
   SYM_DATA_END -- the end of the SYM_DATA_START symbol
   SYM_DATA_END_LABEL -- the labeled end of SYM_DATA_START symbol
   SYM_DATA -- start+end wrapper around simple global data
   SYM_DATA_LOCAL -- start+end wrapper around simple local data

==========

The macros allow to pair starts and ends of functions and mark functions
correctly in the output ELF objects.

All users of the old macros in x86 are converted to use these in further
patches.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: hpa@zytor.com
Cc: Ingo Molnar <mingo@kernel.org>
Cc: jpoimboe@redhat.com
Cc: Juergen Gross <jgross@suse.com>
Cc: Len Brown <len.brown@intel.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org
Cc: linux-pm@vger.kernel.org
Cc: Borislav Petkov <bp@alien8.de>
Cc: mingo@redhat.com
Cc: Pavel Machek <pavel@ucw.cz>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: xen-devel@lists.xenproject.org
Cc: x86@kernel.org
---

Notes:
    [v2]
    * use SYM_ prefix and sane names
    * add SYM_START and SYM_END and parametrize all the macros
    
    [v3]
    * add SYM_DATA, SYM_DATA_LOCAL, and SYM_DATA_END_LABEL
    
    [v4]
    * add _NOALIGN versions of some macros
    * add _CODE_ derivates of _FUNC_ macros
    
    [v5]
    * drop "SIMPLE" from data annotations
    * switch NOALIGN and ALIGN variants of inner labels
    * s/visibility/linkage/; s@SYM_V_@SYM_L_@
    * add Documentation
    
    [v6]
    * fixed typos found by Randy Dunlap
    * remove doubled INNER_LABEL macros, one pair was unused
    
    [v8]
    * use lkml.kernel.org for links
    * link the docs from index.rst (by Boris)
    * fixed typos on the docs
    
    [v9]
    * updated the docs as requested by Boris

 Documentation/asm-annotations.rst | 216 ++++++++++++++++++++++++++
 Documentation/index.rst           |   8 +
 arch/x86/include/asm/linkage.h    |  10 +-
 include/linux/linkage.h           | 245 +++++++++++++++++++++++++++++-
 4 files changed, 468 insertions(+), 11 deletions(-)
 create mode 100644 Documentation/asm-annotations.rst

diff --git a/Documentation/asm-annotations.rst b/Documentation/asm-annotations.rst
new file mode 100644
index 000000000000..29ccd6e61fe5
--- /dev/null
+++ b/Documentation/asm-annotations.rst
@@ -0,0 +1,216 @@
+Assembler Annotations
+=====================
+
+Copyright (c) 2017-2019 Jiri Slaby
+
+This document describes the new macros for annotation of data and code in
+assembly. In particular, it contains information about ``SYM_FUNC_START``,
+``SYM_FUNC_END``, ``SYM_CODE_START``, and similar.
+
+Rationale
+---------
+Some code like entries, trampolines, or boot code needs to be written in
+assembly. The same as in C, such code is grouped into functions and
+accompanied with data. Standard assemblers do not force users into precisely
+marking these pieces as code, data, or even specifying their length.
+Nevertheless, assemblers provide developers with such annotations to aid
+debuggers throughout assembly. On top of that, developers also want to mark
+some functions as *global* in order to be visible outside of their translation
+units.
+
+Over time, the Linux kernel has adopted macros from various projects (like
+``binutils``) to facilitate such annotations. So for historic reasons,
+developers have been using ``ENTRY``, ``END``, ``ENDPROC``, and other
+annotations in assembly.  Due to the lack of their documentation, the macros
+are used in rather wrong contexts at some locations. Clearly, ``ENTRY`` was
+intended to denote the beginning of global symbols (be it data or code).
+``END`` used to mark the end of data or end of special functions with
+*non-standard* calling convention. In contrast, ``ENDPROC`` should annotate
+only ends of *standard* functions.
+
+When these macros are used correctly, they help assemblers generate a nice
+object with both sizes and types set correctly. For example, the result of
+``arch/x86/lib/putuser.S``::
+
+   Num:    Value          Size Type    Bind   Vis      Ndx Name
+    25: 0000000000000000    33 FUNC    GLOBAL DEFAULT    1 __put_user_1
+    29: 0000000000000030    37 FUNC    GLOBAL DEFAULT    1 __put_user_2
+    32: 0000000000000060    36 FUNC    GLOBAL DEFAULT    1 __put_user_4
+    35: 0000000000000090    37 FUNC    GLOBAL DEFAULT    1 __put_user_8
+
+This is not only important for debugging purposes. When there are properly
+annotated objects like this, tools can be run on them to generate more useful
+information. In particular, on properly annotated objects, ``objtool`` can be
+run to check and fix the object if needed. Currently, ``objtool`` can report
+missing frame pointer setup/destruction in functions. It can also
+automatically generate annotations for :doc:`ORC unwinder <x86/orc-unwinder>`
+for most code. Both of these are especially important to support reliable
+stack traces which are in turn necessary for :doc:`Kernel live patching
+<livepatch/livepatch>`.
+
+Caveat and Discussion
+---------------------
+As one might realize, there were only three macros previously. That is indeed
+insufficient to cover all the combinations of cases:
+
+* standard/non-standard function
+* code/data
+* global/local symbol
+
+There was a discussion_ and instead of extending the current ``ENTRY/END*``
+macros, it was decided that brand new macros should be introduced instead::
+
+    So how about using macro names that actually show the purpose, instead
+    of importing all the crappy, historic, essentially randomly chosen
+    debug symbol macro names from the binutils and older kernels?
+
+.. _discussion: https://lkml.kernel.org/r/20170217104757.28588-1-jslaby@suse.cz
+
+Macros Description
+------------------
+
+The new macros are prefixed with the ``SYM_`` prefix and can be divided into
+three main groups:
+
+1. ``SYM_FUNC_*`` -- to annotate C-like functions. This means functions with
+   standard C calling conventions, i.e. the stack contains a return address at
+   the predefined place and a return from the function can happen in a
+   standard way. When frame pointers are enabled, save/restore of frame
+   pointer shall happen at the start/end of a function, respectively, too.
+
+   Checking tools like ``objtool`` should ensure such marked functions conform
+   to these rules. The tools can also easily annotate these functions with
+   debugging information (like *ORC data*) automatically.
+
+2. ``SYM_CODE_*`` -- special functions called with special stack. Be it
+   interrupt handlers with special stack content, trampolines, or startup
+   functions.
+
+   Checking tools mostly ignore checking of these functions. But some debug
+   information still can be generated automatically. For correct debug data,
+   this code needs hints like ``UNWIND_HINT_REGS`` provided by developers.
+
+3. ``SYM_DATA*`` -- obviously data belonging to ``.data`` sections and not to
+   ``.text``. Data do not contain instructions, so they have to be treated
+   specially by the tools: they should not treat the bytes as instructions,
+   nor assign any debug information to them.
+
+Instruction Macros
+~~~~~~~~~~~~~~~~~~
+This section covers ``SYM_FUNC_*`` and ``SYM_CODE_*`` enumerated above.
+
+* ``SYM_FUNC_START`` and ``SYM_FUNC_START_LOCAL`` are supposed to be **the
+  most frequent markings**. They are used for functions with standard calling
+  conventions -- global and local. Like in C, they both align the functions to
+  architecture specific ``__ALIGN`` bytes. There are also ``_NOALIGN`` variants
+  for special cases where developers do not want this implicit alignment.
+
+  ``SYM_FUNC_START_WEAK`` and ``SYM_FUNC_START_WEAK_NOALIGN`` markings are
+  also offered as an assembler counterpart to the *weak* attribute known from
+  C.
+
+  All of these **shall** be coupled with ``SYM_FUNC_END``. First, it marks
+  the sequence of instructions as a function and computes its size to the
+  generated object file. Second, it also eases checking and processing such
+  object files as the tools can trivially find exact function boundaries.
+
+  So in most cases, developers should write something like in the following
+  example, having some asm instructions in between the macros, of course::
+
+    SYM_FUNC_START(function_hook)
+        ... asm insns ...
+    SYM_FUNC_END(function_hook)
+
+  In fact, this kind of annotation corresponds to the now deprecated ``ENTRY``
+  and ``ENDPROC`` macros.
+
+* ``SYM_FUNC_START_ALIAS`` and ``SYM_FUNC_START_LOCAL_ALIAS`` serve for those
+  who decided to have two or more names for one function. The typical use is::
+
+    SYM_FUNC_START_ALIAS(__memset)
+    SYM_FUNC_START(memset)
+        ... asm insns ...
+    SYM_FUNC_END(memset)
+    SYM_FUNC_END_ALIAS(__memset)
+
+  In this example, one can call ``__memset`` or ``memset`` with the same
+  result, except the debug information for the instructions is generated to
+  the object file only once -- for the non-``ALIAS`` case.
+
+* ``SYM_CODE_START`` and ``SYM_CODE_START_LOCAL`` should be used only in
+  special cases -- if you know what you are doing. This is used exclusively
+  for interrupt handlers and similar where the calling convention is not the C
+  one. ``_NOALIGN`` variants exist too. The use is the same as for the ``FUNC``
+  category above::
+
+    SYM_CODE_START_LOCAL(bad_put_user)
+        ... asm insns ...
+    SYM_CODE_END(bad_put_user)
+
+  Again, every ``SYM_CODE_START*`` **shall** be coupled by ``SYM_CODE_END``.
+
+  To some extent, this category corresponds to deprecated ``ENTRY`` and
+  ``END``. Except ``END`` had several other meanings too.
+
+* ``SYM_INNER_LABEL*`` is used to denote a label inside some
+  ``SYM_{CODE,FUNC}_START`` and ``SYM_{CODE,FUNC}_END``.  They are very similar
+  to C labels, except they can be made global. An example of use::
+
+    SYM_CODE_START(ftrace_caller)
+        /* save_mcount_regs fills in first two parameters */
+        ...
+
+    SYM_INNER_LABEL(ftrace_caller_op_ptr, SYM_L_GLOBAL)
+        /* Load the ftrace_ops into the 3rd parameter */
+        ...
+
+    SYM_INNER_LABEL(ftrace_call, SYM_L_GLOBAL)
+        call ftrace_stub
+        ...
+        retq
+    SYM_CODE_END(ftrace_caller)
+
+Data Macros
+~~~~~~~~~~~
+Similar to instructions, there is a couple of macros to describe data in the
+assembly.
+
+* ``SYM_DATA_START`` and ``SYM_DATA_START_LOCAL`` mark the start of some data
+  and shall be used in conjunction with either ``SYM_DATA_END``, or
+  ``SYM_DATA_END_LABEL``. The latter adds also a label to the end, so that
+  people can use ``lstack`` and (local) ``lstack_end`` in the following
+  example::
+
+    SYM_DATA_START_LOCAL(lstack)
+        .skip 4096
+    SYM_DATA_END_LABEL(lstack, SYM_L_LOCAL, lstack_end)
+
+* ``SYM_DATA`` and ``SYM_DATA_LOCAL`` are variants for simple, mostly one-line
+  data::
+
+    SYM_DATA(HEAP,     .long rm_heap)
+    SYM_DATA(heap_end, .long rm_stack)
+
+  In the end, they expand to ``SYM_DATA_START`` with ``SYM_DATA_END``
+  internally.
+
+Support Macros
+~~~~~~~~~~~~~~
+All the above reduce themselves to some invocation of ``SYM_START``,
+``SYM_END``, or ``SYM_ENTRY`` at last. Normally, developers should avoid using
+these.
+
+Further, in the above examples, one could see ``SYM_L_LOCAL``. There are also
+``SYM_L_GLOBAL`` and ``SYM_L_WEAK``. All are intended to denote linkage of a
+symbol marked by them. They are used either in ``_LABEL`` variants of the
+earlier macros, or in ``SYM_START``.
+
+
+Overriding Macros
+~~~~~~~~~~~~~~~~~
+Architecture can also override any of the macros in their own
+``asm/linkage.h``, including macros specifying the type of a symbol
+(``SYM_T_FUNC``, ``SYM_T_OBJECT``, and ``SYM_T_NONE``).  As every macro
+described in this file is surrounded by ``#ifdef`` + ``#endif``, it is enough
+to define the macros differently in the aforementioned architecture-dependent
+header.
diff --git a/Documentation/index.rst b/Documentation/index.rst
index b843e313d2f2..2ceab197246f 100644
--- a/Documentation/index.rst
+++ b/Documentation/index.rst
@@ -135,6 +135,14 @@ needed).
    mic/index
    scheduler/index
 
+Architecture-agnostic documentation
+-----------------------------------
+
+.. toctree::
+   :maxdepth: 2
+
+   asm-annotations
+
 Architecture-specific documentation
 -----------------------------------
 
diff --git a/arch/x86/include/asm/linkage.h b/arch/x86/include/asm/linkage.h
index 14caa9d9fb7f..e07188e8d763 100644
--- a/arch/x86/include/asm/linkage.h
+++ b/arch/x86/include/asm/linkage.h
@@ -13,9 +13,13 @@
 
 #ifdef __ASSEMBLY__
 
-#define GLOBAL(name)	\
-	.globl name;	\
-	name:
+/*
+ * GLOBAL is DEPRECATED
+ *
+ * use SYM_DATA_START, SYM_FUNC_START, SYM_INNER_LABEL, SYM_CODE_START, or
+ * similar
+ */
+#define GLOBAL(name)	SYM_ENTRY(name, SYM_L_GLOBAL, SYM_A_NONE)
 
 #if defined(CONFIG_X86_64) || defined(CONFIG_X86_ALIGNMENT_16)
 #define __ALIGN		.p2align 4, 0x90
diff --git a/include/linux/linkage.h b/include/linux/linkage.h
index 7e020782ade2..f3ae8f3dea2c 100644
--- a/include/linux/linkage.h
+++ b/include/linux/linkage.h
@@ -75,32 +75,58 @@
 
 #ifdef __ASSEMBLY__
 
+/* SYM_T_FUNC -- type used by assembler to mark functions */
+#ifndef SYM_T_FUNC
+#define SYM_T_FUNC				STT_FUNC
+#endif
+
+/* SYM_T_OBJECT -- type used by assembler to mark data */
+#ifndef SYM_T_OBJECT
+#define SYM_T_OBJECT				STT_OBJECT
+#endif
+
+/* SYM_T_NONE -- type used by assembler to mark entries of unknown type */
+#ifndef SYM_T_NONE
+#define SYM_T_NONE				STT_NOTYPE
+#endif
+
+/* SYM_A_* -- align the symbol? */
+#define SYM_A_ALIGN				ALIGN
+#define SYM_A_NONE				/* nothing */
+
+/* SYM_L_* -- linkage of symbols */
+#define SYM_L_GLOBAL(name)			.globl name
+#define SYM_L_WEAK(name)			.weak name
+#define SYM_L_LOCAL(name)			/* nothing */
+
 #ifndef LINKER_SCRIPT
 #define ALIGN __ALIGN
 #define ALIGN_STR __ALIGN_STR
 
+/* === DEPRECATED annotations === */
+
 #ifndef GLOBAL
+/* deprecated, use SYM_DATA*, SYM_ENTRY, or similar */
 #define GLOBAL(name) \
 	.globl name ASM_NL \
 	name:
 #endif
 
 #ifndef ENTRY
+/* deprecated, use SYM_FUNC_START */
 #define ENTRY(name) \
-	.globl name ASM_NL \
-	ALIGN ASM_NL \
-	name:
+	SYM_FUNC_START(name)
 #endif
 #endif /* LINKER_SCRIPT */
 
 #ifndef WEAK
+/* deprecated, use SYM_FUNC_START_WEAK* */
 #define WEAK(name)	   \
-	.weak name ASM_NL   \
-	ALIGN ASM_NL \
-	name:
+	SYM_FUNC_START_WEAK(name)
 #endif
 
 #ifndef END
+/* deprecated, use SYM_FUNC_END, SYM_DATA_END, or SYM_END */
 #define END(name) \
 	.size name, .-name
 #endif
@@ -110,11 +136,214 @@
  * static analysis tools such as stack depth analyzer.
  */
 #ifndef ENDPROC
+/* deprecated, use SYM_FUNC_END */
 #define ENDPROC(name) \
-	.type name, @function ASM_NL \
-	END(name)
+	SYM_FUNC_END(name)
+#endif
+
+/* === generic annotations === */
+
+/* SYM_ENTRY -- use only if you have to for non-paired symbols */
+#ifndef SYM_ENTRY
+#define SYM_ENTRY(name, linkage, align...)		\
+	linkage(name) ASM_NL				\
+	align ASM_NL					\
+	name:
+#endif
+
+/* SYM_START -- use only if you have to */
+#ifndef SYM_START
+#define SYM_START(name, linkage, align...)		\
+	SYM_ENTRY(name, linkage, align)
+#endif
+
+/* SYM_END -- use only if you have to */
+#ifndef SYM_END
+#define SYM_END(name, sym_type)				\
+	.type name sym_type ASM_NL			\
+	.size name, .-name
+#endif
+
+/* === code annotations === */
+
+/*
+ * FUNC -- C-like functions (proper stack frame etc.)
+ * CODE -- non-C code (e.g. irq handlers with different, special stack etc.)
+ *
+ * Objtool validates stack for FUNC, but not for CODE.
+ * Objtool generates debug info for both FUNC & CODE, but needs special
+ * annotations for each CODE's start (to describe the actual stack frame).
+ *
+ * ALIAS -- does not generate debug info -- the aliased function will
+ */
+
+/* SYM_INNER_LABEL_ALIGN -- only for labels in the middle of code */
+#ifndef SYM_INNER_LABEL_ALIGN
+#define SYM_INNER_LABEL_ALIGN(name, linkage)	\
+	.type name SYM_T_NONE ASM_NL			\
+	SYM_ENTRY(name, linkage, SYM_A_ALIGN)
+#endif
+
+/* SYM_INNER_LABEL -- only for labels in the middle of code */
+#ifndef SYM_INNER_LABEL
+#define SYM_INNER_LABEL(name, linkage)		\
+	.type name SYM_T_NONE ASM_NL			\
+	SYM_ENTRY(name, linkage, SYM_A_NONE)
+#endif
+
+/*
+ * SYM_FUNC_START_LOCAL_ALIAS -- use where there are two local names for one
+ * function
+ */
+#ifndef SYM_FUNC_START_LOCAL_ALIAS
+#define SYM_FUNC_START_LOCAL_ALIAS(name)		\
+	SYM_START(name, SYM_L_LOCAL, SYM_A_ALIGN)
+#endif
+
+/*
+ * SYM_FUNC_START_ALIAS -- use where there are two global names for one
+ * function
+ */
+#ifndef SYM_FUNC_START_ALIAS
+#define SYM_FUNC_START_ALIAS(name)			\
+	SYM_START(name, SYM_L_GLOBAL, SYM_A_ALIGN)
+#endif
+
+/* SYM_FUNC_START -- use for global functions */
+#ifndef SYM_FUNC_START
+/*
+ * The same as SYM_FUNC_START_ALIAS, but we will need to distinguish these two
+ * later.
+ */
+#define SYM_FUNC_START(name)				\
+	SYM_START(name, SYM_L_GLOBAL, SYM_A_ALIGN)
+#endif
+
+/* SYM_FUNC_START_NOALIGN -- use for global functions, w/o alignment */
+#ifndef SYM_FUNC_START_NOALIGN
+#define SYM_FUNC_START_NOALIGN(name)			\
+	SYM_START(name, SYM_L_GLOBAL, SYM_A_NONE)
+#endif
+
+/* SYM_FUNC_START_LOCAL -- use for local functions */
+#ifndef SYM_FUNC_START_LOCAL
+/* the same as SYM_FUNC_START_LOCAL_ALIAS, see comment near SYM_FUNC_START */
+#define SYM_FUNC_START_LOCAL(name)			\
+	SYM_START(name, SYM_L_LOCAL, SYM_A_ALIGN)
 #endif
 
+/* SYM_FUNC_START_LOCAL_NOALIGN -- use for local functions, w/o alignment */
+#ifndef SYM_FUNC_START_LOCAL_NOALIGN
+#define SYM_FUNC_START_LOCAL_NOALIGN(name)		\
+	SYM_START(name, SYM_L_LOCAL, SYM_A_NONE)
 #endif
 
+/* SYM_FUNC_START_WEAK -- use for weak functions */
+#ifndef SYM_FUNC_START_WEAK
+#define SYM_FUNC_START_WEAK(name)			\
+	SYM_START(name, SYM_L_WEAK, SYM_A_ALIGN)
 #endif
+
+/* SYM_FUNC_START_WEAK_NOALIGN -- use for weak functions, w/o alignment */
+#ifndef SYM_FUNC_START_WEAK_NOALIGN
+#define SYM_FUNC_START_WEAK_NOALIGN(name)		\
+	SYM_START(name, SYM_L_WEAK, SYM_A_NONE)
+#endif
+
+/* SYM_FUNC_END_ALIAS -- the end of LOCAL_ALIASed or ALIASed function */
+#ifndef SYM_FUNC_END_ALIAS
+#define SYM_FUNC_END_ALIAS(name)			\
+	SYM_END(name, SYM_T_FUNC)
+#endif
+
+/*
+ * SYM_FUNC_END -- the end of SYM_FUNC_START_LOCAL, SYM_FUNC_START,
+ * SYM_FUNC_START_WEAK, ...
+ */
+#ifndef SYM_FUNC_END
+/* the same as SYM_FUNC_END_ALIAS, see comment near SYM_FUNC_START */
+#define SYM_FUNC_END(name)				\
+	SYM_END(name, SYM_T_FUNC)
+#endif
+
+/* SYM_CODE_START -- use for non-C (special) functions */
+#ifndef SYM_CODE_START
+#define SYM_CODE_START(name)				\
+	SYM_START(name, SYM_L_GLOBAL, SYM_A_ALIGN)
+#endif
+
+/* SYM_CODE_START_NOALIGN -- use for non-C (special) functions, w/o alignment */
+#ifndef SYM_CODE_START_NOALIGN
+#define SYM_CODE_START_NOALIGN(name)			\
+	SYM_START(name, SYM_L_GLOBAL, SYM_A_NONE)
+#endif
+
+/* SYM_CODE_START_LOCAL -- use for local non-C (special) functions */
+#ifndef SYM_CODE_START_LOCAL
+#define SYM_CODE_START_LOCAL(name)			\
+	SYM_START(name, SYM_L_LOCAL, SYM_A_ALIGN)
+#endif
+
+/*
+ * SYM_CODE_START_LOCAL_NOALIGN -- use for local non-C (special) functions,
+ * w/o alignment
+ */
+#ifndef SYM_CODE_START_LOCAL_NOALIGN
+#define SYM_CODE_START_LOCAL_NOALIGN(name)		\
+	SYM_START(name, SYM_L_LOCAL, SYM_A_NONE)
+#endif
+
+/* SYM_CODE_END -- the end of SYM_CODE_START_LOCAL, SYM_CODE_START, ... */
+#ifndef SYM_CODE_END
+#define SYM_CODE_END(name)				\
+	SYM_END(name, SYM_T_NONE)
+#endif
+
+/* === data annotations === */
+
+/* SYM_DATA_START -- global data symbol */
+#ifndef SYM_DATA_START
+#define SYM_DATA_START(name)				\
+	SYM_START(name, SYM_L_GLOBAL, SYM_A_NONE)
+#endif
+
+/* SYM_DATA_START -- local data symbol */
+#ifndef SYM_DATA_START_LOCAL
+#define SYM_DATA_START_LOCAL(name)			\
+	SYM_START(name, SYM_L_LOCAL, SYM_A_NONE)
+#endif
+
+/* SYM_DATA_END -- the end of SYM_DATA_START symbol */
+#ifndef SYM_DATA_END
+#define SYM_DATA_END(name)				\
+	SYM_END(name, SYM_T_OBJECT)
+#endif
+
+/* SYM_DATA_END_LABEL -- the labeled end of SYM_DATA_START symbol */
+#ifndef SYM_DATA_END_LABEL
+#define SYM_DATA_END_LABEL(name, linkage, label)	\
+	linkage(label) ASM_NL				\
+	.type label SYM_T_OBJECT ASM_NL			\
+	label:						\
+	SYM_END(name, SYM_T_OBJECT)
+#endif
+
+/* SYM_DATA -- start+end wrapper around simple global data */
+#ifndef SYM_DATA
+#define SYM_DATA(name, data...)				\
+	SYM_DATA_START(name) ASM_NL				\
+	data ASM_NL						\
+	SYM_DATA_END(name)
+#endif
+
+/* SYM_DATA_LOCAL -- start+end wrapper around simple local data */
+#ifndef SYM_DATA_LOCAL
+#define SYM_DATA_LOCAL(name, data...)			\
+	SYM_DATA_START_LOCAL(name) ASM_NL			\
+	data ASM_NL						\
+	SYM_DATA_END(name)
+#endif
+
+#endif /* __ASSEMBLY__ */
+
+#endif /* _LINUX_LINKAGE_H */
-- 
2.23.0


^ permalink raw reply related	[flat|nested] 110+ messages in thread

* [PATCH v9 01/28] linkage: Introduce new macros for assembler symbols
@ 2019-10-11 11:50   ` Jiri Slaby
  0 siblings, 0 replies; 110+ messages in thread
From: Jiri Slaby @ 2019-10-11 11:50 UTC (permalink / raw)
  To: bp
  Cc: linux-arch, Juergen Gross, Peter Zijlstra, jpoimboe, Len Brown,
	Boris Ostrovsky, Linus Torvalds, linux-pm, x86,
	Rafael J. Wysocki, linux-kernel, Ingo Molnar, mingo,
	Pavel Machek, hpa, xen-devel, tglx, Jiri Slaby, Andrew Morton

Introduce new C macros for annotations of functions and data in
assembly. There is a long-standing mess in macros like ENTRY, END,
ENDPROC and similar. They are used in different manners and sometimes
incorrectly.

So introduce macros with clear use to annotate assembly as follows:

a) Support macros for the ones below
   SYM_T_FUNC -- type used by assembler to mark functions
   SYM_T_OBJECT -- type used by assembler to mark data
   SYM_T_NONE -- type used by assembler to mark entries of unknown type

   They are defined as STT_FUNC, STT_OBJECT, and STT_NOTYPE
   respectively. According to the gas manual, this is the most portable
   way. I am not sure about other assemblers, so this can be switched
   back to %function and %object if this turns into a problem.
   Architectures can also override them by something like ", @function"
   if they need.

   SYM_A_ALIGN, SYM_A_NONE -- align the symbol?
   SYM_L_GLOBAL, SYM_L_WEAK, SYM_L_LOCAL -- linkage of symbols

b) Mostly internal annotations, used by the ones below
   SYM_ENTRY -- use only if you have to (for non-paired symbols)
   SYM_START -- use only if you have to (for paired symbols)
   SYM_END -- use only if you have to (for paired symbols)

c) Annotations for code
   SYM_INNER_LABEL_ALIGN -- only for labels in the middle of code
   SYM_INNER_LABEL -- only for labels in the middle of code

   SYM_FUNC_START_LOCAL_ALIAS -- use where there are two local names for
	one function
   SYM_FUNC_START_ALIAS -- use where there are two global names for one
	function
   SYM_FUNC_END_ALIAS -- the end of LOCAL_ALIASed or ALIASed function

   SYM_FUNC_START -- use for global functions
   SYM_FUNC_START_NOALIGN -- use for global functions, w/o alignment
   SYM_FUNC_START_LOCAL -- use for local functions
   SYM_FUNC_START_LOCAL_NOALIGN -- use for local functions, w/o
	alignment
   SYM_FUNC_START_WEAK -- use for weak functions
   SYM_FUNC_START_WEAK_NOALIGN -- use for weak functions, w/o alignment
   SYM_FUNC_END -- the end of SYM_FUNC_START_LOCAL, SYM_FUNC_START,
	SYM_FUNC_START_WEAK, ...

   For functions with special (non-C) calling conventions:
   SYM_CODE_START -- use for non-C (special) functions
   SYM_CODE_START_NOALIGN -- use for non-C (special) functions, w/o
	alignment
   SYM_CODE_START_LOCAL -- use for local non-C (special) functions
   SYM_CODE_START_LOCAL_NOALIGN -- use for local non-C (special)
	functions, w/o alignment
   SYM_CODE_END -- the end of SYM_CODE_START_LOCAL or SYM_CODE_START

d) For data
   SYM_DATA_START -- global data symbol
   SYM_DATA_START_LOCAL -- local data symbol
   SYM_DATA_END -- the end of the SYM_DATA_START symbol
   SYM_DATA_END_LABEL -- the labeled end of SYM_DATA_START symbol
   SYM_DATA -- start+end wrapper around simple global data
   SYM_DATA_LOCAL -- start+end wrapper around simple local data

==========

The macros allow to pair starts and ends of functions and mark functions
correctly in the output ELF objects.

All users of the old macros in x86 are converted to use these in further
patches.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: hpa@zytor.com
Cc: Ingo Molnar <mingo@kernel.org>
Cc: jpoimboe@redhat.com
Cc: Juergen Gross <jgross@suse.com>
Cc: Len Brown <len.brown@intel.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org
Cc: linux-pm@vger.kernel.org
Cc: Borislav Petkov <bp@alien8.de>
Cc: mingo@redhat.com
Cc: Pavel Machek <pavel@ucw.cz>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: xen-devel@lists.xenproject.org
Cc: x86@kernel.org
---

Notes:
    [v2]
    * use SYM_ prefix and sane names
    * add SYM_START and SYM_END and parametrize all the macros
    
    [v3]
    * add SYM_DATA, SYM_DATA_LOCAL, and SYM_DATA_END_LABEL
    
    [v4]
    * add _NOALIGN versions of some macros
    * add _CODE_ derivates of _FUNC_ macros
    
    [v5]
    * drop "SIMPLE" from data annotations
    * switch NOALIGN and ALIGN variants of inner labels
    * s/visibility/linkage/; s@SYM_V_@SYM_L_@
    * add Documentation
    
    [v6]
    * fixed typos found by Randy Dunlap
    * remove doubled INNER_LABEL macros, one pair was unused
    
    [v8]
    * use lkml.kernel.org for links
    * link the docs from index.rst (by Boris)
    * fixed typos on the docs
    
    [v9]
    * updated the docs as requested by Boris

 Documentation/asm-annotations.rst | 216 ++++++++++++++++++++++++++
 Documentation/index.rst           |   8 +
 arch/x86/include/asm/linkage.h    |  10 +-
 include/linux/linkage.h           | 245 +++++++++++++++++++++++++++++-
 4 files changed, 468 insertions(+), 11 deletions(-)
 create mode 100644 Documentation/asm-annotations.rst

diff --git a/Documentation/asm-annotations.rst b/Documentation/asm-annotations.rst
new file mode 100644
index 000000000000..29ccd6e61fe5
--- /dev/null
+++ b/Documentation/asm-annotations.rst
@@ -0,0 +1,216 @@
+Assembler Annotations
+=====================
+
+Copyright (c) 2017-2019 Jiri Slaby
+
+This document describes the new macros for annotation of data and code in
+assembly. In particular, it contains information about ``SYM_FUNC_START``,
+``SYM_FUNC_END``, ``SYM_CODE_START``, and similar.
+
+Rationale
+---------
+Some code like entries, trampolines, or boot code needs to be written in
+assembly. The same as in C, such code is grouped into functions and
+accompanied with data. Standard assemblers do not force users into precisely
+marking these pieces as code, data, or even specifying their length.
+Nevertheless, assemblers provide developers with such annotations to aid
+debuggers throughout assembly. On top of that, developers also want to mark
+some functions as *global* in order to be visible outside of their translation
+units.
+
+Over time, the Linux kernel has adopted macros from various projects (like
+``binutils``) to facilitate such annotations. So for historic reasons,
+developers have been using ``ENTRY``, ``END``, ``ENDPROC``, and other
+annotations in assembly.  Due to the lack of their documentation, the macros
+are used in rather wrong contexts at some locations. Clearly, ``ENTRY`` was
+intended to denote the beginning of global symbols (be it data or code).
+``END`` used to mark the end of data or end of special functions with
+*non-standard* calling convention. In contrast, ``ENDPROC`` should annotate
+only ends of *standard* functions.
+
+When these macros are used correctly, they help assemblers generate a nice
+object with both sizes and types set correctly. For example, the result of
+``arch/x86/lib/putuser.S``::
+
+   Num:    Value          Size Type    Bind   Vis      Ndx Name
+    25: 0000000000000000    33 FUNC    GLOBAL DEFAULT    1 __put_user_1
+    29: 0000000000000030    37 FUNC    GLOBAL DEFAULT    1 __put_user_2
+    32: 0000000000000060    36 FUNC    GLOBAL DEFAULT    1 __put_user_4
+    35: 0000000000000090    37 FUNC    GLOBAL DEFAULT    1 __put_user_8
+
+This is not only important for debugging purposes. When there are properly
+annotated objects like this, tools can be run on them to generate more useful
+information. In particular, on properly annotated objects, ``objtool`` can be
+run to check and fix the object if needed. Currently, ``objtool`` can report
+missing frame pointer setup/destruction in functions. It can also
+automatically generate annotations for :doc:`ORC unwinder <x86/orc-unwinder>`
+for most code. Both of these are especially important to support reliable
+stack traces which are in turn necessary for :doc:`Kernel live patching
+<livepatch/livepatch>`.
+
+Caveat and Discussion
+---------------------
+As one might realize, there were only three macros previously. That is indeed
+insufficient to cover all the combinations of cases:
+
+* standard/non-standard function
+* code/data
+* global/local symbol
+
+There was a discussion_ and instead of extending the current ``ENTRY/END*``
+macros, it was decided that brand new macros should be introduced instead::
+
+    So how about using macro names that actually show the purpose, instead
+    of importing all the crappy, historic, essentially randomly chosen
+    debug symbol macro names from the binutils and older kernels?
+
+.. _discussion: https://lkml.kernel.org/r/20170217104757.28588-1-jslaby@suse.cz
+
+Macros Description
+------------------
+
+The new macros are prefixed with the ``SYM_`` prefix and can be divided into
+three main groups:
+
+1. ``SYM_FUNC_*`` -- to annotate C-like functions. This means functions with
+   standard C calling conventions, i.e. the stack contains a return address at
+   the predefined place and a return from the function can happen in a
+   standard way. When frame pointers are enabled, save/restore of frame
+   pointer shall happen at the start/end of a function, respectively, too.
+
+   Checking tools like ``objtool`` should ensure such marked functions conform
+   to these rules. The tools can also easily annotate these functions with
+   debugging information (like *ORC data*) automatically.
+
+2. ``SYM_CODE_*`` -- special functions called with special stack. Be it
+   interrupt handlers with special stack content, trampolines, or startup
+   functions.
+
+   Checking tools mostly ignore checking of these functions. But some debug
+   information still can be generated automatically. For correct debug data,
+   this code needs hints like ``UNWIND_HINT_REGS`` provided by developers.
+
+3. ``SYM_DATA*`` -- obviously data belonging to ``.data`` sections and not to
+   ``.text``. Data do not contain instructions, so they have to be treated
+   specially by the tools: they should not treat the bytes as instructions,
+   nor assign any debug information to them.
+
+Instruction Macros
+~~~~~~~~~~~~~~~~~~
+This section covers ``SYM_FUNC_*`` and ``SYM_CODE_*`` enumerated above.
+
+* ``SYM_FUNC_START`` and ``SYM_FUNC_START_LOCAL`` are supposed to be **the
+  most frequent markings**. They are used for functions with standard calling
+  conventions -- global and local. Like in C, they both align the functions to
+  architecture specific ``__ALIGN`` bytes. There are also ``_NOALIGN`` variants
+  for special cases where developers do not want this implicit alignment.
+
+  ``SYM_FUNC_START_WEAK`` and ``SYM_FUNC_START_WEAK_NOALIGN`` markings are
+  also offered as an assembler counterpart to the *weak* attribute known from
+  C.
+
+  All of these **shall** be coupled with ``SYM_FUNC_END``. First, it marks
+  the sequence of instructions as a function and computes its size to the
+  generated object file. Second, it also eases checking and processing such
+  object files as the tools can trivially find exact function boundaries.
+
+  So in most cases, developers should write something like in the following
+  example, having some asm instructions in between the macros, of course::
+
+    SYM_FUNC_START(function_hook)
+        ... asm insns ...
+    SYM_FUNC_END(function_hook)
+
+  In fact, this kind of annotation corresponds to the now deprecated ``ENTRY``
+  and ``ENDPROC`` macros.
+
+* ``SYM_FUNC_START_ALIAS`` and ``SYM_FUNC_START_LOCAL_ALIAS`` serve for those
+  who decided to have two or more names for one function. The typical use is::
+
+    SYM_FUNC_START_ALIAS(__memset)
+    SYM_FUNC_START(memset)
+        ... asm insns ...
+    SYM_FUNC_END(memset)
+    SYM_FUNC_END_ALIAS(__memset)
+
+  In this example, one can call ``__memset`` or ``memset`` with the same
+  result, except the debug information for the instructions is generated to
+  the object file only once -- for the non-``ALIAS`` case.
+
+* ``SYM_CODE_START`` and ``SYM_CODE_START_LOCAL`` should be used only in
+  special cases -- if you know what you are doing. This is used exclusively
+  for interrupt handlers and similar where the calling convention is not the C
+  one. ``_NOALIGN`` variants exist too. The use is the same as for the ``FUNC``
+  category above::
+
+    SYM_CODE_START_LOCAL(bad_put_user)
+        ... asm insns ...
+    SYM_CODE_END(bad_put_user)
+
+  Again, every ``SYM_CODE_START*`` **shall** be coupled by ``SYM_CODE_END``.
+
+  To some extent, this category corresponds to deprecated ``ENTRY`` and
+  ``END``. Except ``END`` had several other meanings too.
+
+* ``SYM_INNER_LABEL*`` is used to denote a label inside some
+  ``SYM_{CODE,FUNC}_START`` and ``SYM_{CODE,FUNC}_END``.  They are very similar
+  to C labels, except they can be made global. An example of use::
+
+    SYM_CODE_START(ftrace_caller)
+        /* save_mcount_regs fills in first two parameters */
+        ...
+
+    SYM_INNER_LABEL(ftrace_caller_op_ptr, SYM_L_GLOBAL)
+        /* Load the ftrace_ops into the 3rd parameter */
+        ...
+
+    SYM_INNER_LABEL(ftrace_call, SYM_L_GLOBAL)
+        call ftrace_stub
+        ...
+        retq
+    SYM_CODE_END(ftrace_caller)
+
+Data Macros
+~~~~~~~~~~~
+Similar to instructions, there is a couple of macros to describe data in the
+assembly.
+
+* ``SYM_DATA_START`` and ``SYM_DATA_START_LOCAL`` mark the start of some data
+  and shall be used in conjunction with either ``SYM_DATA_END``, or
+  ``SYM_DATA_END_LABEL``. The latter adds also a label to the end, so that
+  people can use ``lstack`` and (local) ``lstack_end`` in the following
+  example::
+
+    SYM_DATA_START_LOCAL(lstack)
+        .skip 4096
+    SYM_DATA_END_LABEL(lstack, SYM_L_LOCAL, lstack_end)
+
+* ``SYM_DATA`` and ``SYM_DATA_LOCAL`` are variants for simple, mostly one-line
+  data::
+
+    SYM_DATA(HEAP,     .long rm_heap)
+    SYM_DATA(heap_end, .long rm_stack)
+
+  In the end, they expand to ``SYM_DATA_START`` with ``SYM_DATA_END``
+  internally.
+
+Support Macros
+~~~~~~~~~~~~~~
+All the above reduce themselves to some invocation of ``SYM_START``,
+``SYM_END``, or ``SYM_ENTRY`` at last. Normally, developers should avoid using
+these.
+
+Further, in the above examples, one could see ``SYM_L_LOCAL``. There are also
+``SYM_L_GLOBAL`` and ``SYM_L_WEAK``. All are intended to denote linkage of a
+symbol marked by them. They are used either in ``_LABEL`` variants of the
+earlier macros, or in ``SYM_START``.
+
+
+Overriding Macros
+~~~~~~~~~~~~~~~~~
+Architecture can also override any of the macros in their own
+``asm/linkage.h``, including macros specifying the type of a symbol
+(``SYM_T_FUNC``, ``SYM_T_OBJECT``, and ``SYM_T_NONE``).  As every macro
+described in this file is surrounded by ``#ifdef`` + ``#endif``, it is enough
+to define the macros differently in the aforementioned architecture-dependent
+header.
diff --git a/Documentation/index.rst b/Documentation/index.rst
index b843e313d2f2..2ceab197246f 100644
--- a/Documentation/index.rst
+++ b/Documentation/index.rst
@@ -135,6 +135,14 @@ needed).
    mic/index
    scheduler/index
 
+Architecture-agnostic documentation
+-----------------------------------
+
+.. toctree::
+   :maxdepth: 2
+
+   asm-annotations
+
 Architecture-specific documentation
 -----------------------------------
 
diff --git a/arch/x86/include/asm/linkage.h b/arch/x86/include/asm/linkage.h
index 14caa9d9fb7f..e07188e8d763 100644
--- a/arch/x86/include/asm/linkage.h
+++ b/arch/x86/include/asm/linkage.h
@@ -13,9 +13,13 @@
 
 #ifdef __ASSEMBLY__
 
-#define GLOBAL(name)	\
-	.globl name;	\
-	name:
+/*
+ * GLOBAL is DEPRECATED
+ *
+ * use SYM_DATA_START, SYM_FUNC_START, SYM_INNER_LABEL, SYM_CODE_START, or
+ * similar
+ */
+#define GLOBAL(name)	SYM_ENTRY(name, SYM_L_GLOBAL, SYM_A_NONE)
 
 #if defined(CONFIG_X86_64) || defined(CONFIG_X86_ALIGNMENT_16)
 #define __ALIGN		.p2align 4, 0x90
diff --git a/include/linux/linkage.h b/include/linux/linkage.h
index 7e020782ade2..f3ae8f3dea2c 100644
--- a/include/linux/linkage.h
+++ b/include/linux/linkage.h
@@ -75,32 +75,58 @@
 
 #ifdef __ASSEMBLY__
 
+/* SYM_T_FUNC -- type used by assembler to mark functions */
+#ifndef SYM_T_FUNC
+#define SYM_T_FUNC				STT_FUNC
+#endif
+
+/* SYM_T_OBJECT -- type used by assembler to mark data */
+#ifndef SYM_T_OBJECT
+#define SYM_T_OBJECT				STT_OBJECT
+#endif
+
+/* SYM_T_NONE -- type used by assembler to mark entries of unknown type */
+#ifndef SYM_T_NONE
+#define SYM_T_NONE				STT_NOTYPE
+#endif
+
+/* SYM_A_* -- align the symbol? */
+#define SYM_A_ALIGN				ALIGN
+#define SYM_A_NONE				/* nothing */
+
+/* SYM_L_* -- linkage of symbols */
+#define SYM_L_GLOBAL(name)			.globl name
+#define SYM_L_WEAK(name)			.weak name
+#define SYM_L_LOCAL(name)			/* nothing */
+
 #ifndef LINKER_SCRIPT
 #define ALIGN __ALIGN
 #define ALIGN_STR __ALIGN_STR
 
+/* === DEPRECATED annotations === */
+
 #ifndef GLOBAL
+/* deprecated, use SYM_DATA*, SYM_ENTRY, or similar */
 #define GLOBAL(name) \
 	.globl name ASM_NL \
 	name:
 #endif
 
 #ifndef ENTRY
+/* deprecated, use SYM_FUNC_START */
 #define ENTRY(name) \
-	.globl name ASM_NL \
-	ALIGN ASM_NL \
-	name:
+	SYM_FUNC_START(name)
 #endif
 #endif /* LINKER_SCRIPT */
 
 #ifndef WEAK
+/* deprecated, use SYM_FUNC_START_WEAK* */
 #define WEAK(name)	   \
-	.weak name ASM_NL   \
-	ALIGN ASM_NL \
-	name:
+	SYM_FUNC_START_WEAK(name)
 #endif
 
 #ifndef END
+/* deprecated, use SYM_FUNC_END, SYM_DATA_END, or SYM_END */
 #define END(name) \
 	.size name, .-name
 #endif
@@ -110,11 +136,214 @@
  * static analysis tools such as stack depth analyzer.
  */
 #ifndef ENDPROC
+/* deprecated, use SYM_FUNC_END */
 #define ENDPROC(name) \
-	.type name, @function ASM_NL \
-	END(name)
+	SYM_FUNC_END(name)
+#endif
+
+/* === generic annotations === */
+
+/* SYM_ENTRY -- use only if you have to for non-paired symbols */
+#ifndef SYM_ENTRY
+#define SYM_ENTRY(name, linkage, align...)		\
+	linkage(name) ASM_NL				\
+	align ASM_NL					\
+	name:
+#endif
+
+/* SYM_START -- use only if you have to */
+#ifndef SYM_START
+#define SYM_START(name, linkage, align...)		\
+	SYM_ENTRY(name, linkage, align)
+#endif
+
+/* SYM_END -- use only if you have to */
+#ifndef SYM_END
+#define SYM_END(name, sym_type)				\
+	.type name sym_type ASM_NL			\
+	.size name, .-name
+#endif
+
+/* === code annotations === */
+
+/*
+ * FUNC -- C-like functions (proper stack frame etc.)
+ * CODE -- non-C code (e.g. irq handlers with different, special stack etc.)
+ *
+ * Objtool validates stack for FUNC, but not for CODE.
+ * Objtool generates debug info for both FUNC & CODE, but needs special
+ * annotations for each CODE's start (to describe the actual stack frame).
+ *
+ * ALIAS -- does not generate debug info -- the aliased function will
+ */
+
+/* SYM_INNER_LABEL_ALIGN -- only for labels in the middle of code */
+#ifndef SYM_INNER_LABEL_ALIGN
+#define SYM_INNER_LABEL_ALIGN(name, linkage)	\
+	.type name SYM_T_NONE ASM_NL			\
+	SYM_ENTRY(name, linkage, SYM_A_ALIGN)
+#endif
+
+/* SYM_INNER_LABEL -- only for labels in the middle of code */
+#ifndef SYM_INNER_LABEL
+#define SYM_INNER_LABEL(name, linkage)		\
+	.type name SYM_T_NONE ASM_NL			\
+	SYM_ENTRY(name, linkage, SYM_A_NONE)
+#endif
+
+/*
+ * SYM_FUNC_START_LOCAL_ALIAS -- use where there are two local names for one
+ * function
+ */
+#ifndef SYM_FUNC_START_LOCAL_ALIAS
+#define SYM_FUNC_START_LOCAL_ALIAS(name)		\
+	SYM_START(name, SYM_L_LOCAL, SYM_A_ALIGN)
+#endif
+
+/*
+ * SYM_FUNC_START_ALIAS -- use where there are two global names for one
+ * function
+ */
+#ifndef SYM_FUNC_START_ALIAS
+#define SYM_FUNC_START_ALIAS(name)			\
+	SYM_START(name, SYM_L_GLOBAL, SYM_A_ALIGN)
+#endif
+
+/* SYM_FUNC_START -- use for global functions */
+#ifndef SYM_FUNC_START
+/*
+ * The same as SYM_FUNC_START_ALIAS, but we will need to distinguish these two
+ * later.
+ */
+#define SYM_FUNC_START(name)				\
+	SYM_START(name, SYM_L_GLOBAL, SYM_A_ALIGN)
+#endif
+
+/* SYM_FUNC_START_NOALIGN -- use for global functions, w/o alignment */
+#ifndef SYM_FUNC_START_NOALIGN
+#define SYM_FUNC_START_NOALIGN(name)			\
+	SYM_START(name, SYM_L_GLOBAL, SYM_A_NONE)
+#endif
+
+/* SYM_FUNC_START_LOCAL -- use for local functions */
+#ifndef SYM_FUNC_START_LOCAL
+/* the same as SYM_FUNC_START_LOCAL_ALIAS, see comment near SYM_FUNC_START */
+#define SYM_FUNC_START_LOCAL(name)			\
+	SYM_START(name, SYM_L_LOCAL, SYM_A_ALIGN)
 #endif
 
+/* SYM_FUNC_START_LOCAL_NOALIGN -- use for local functions, w/o alignment */
+#ifndef SYM_FUNC_START_LOCAL_NOALIGN
+#define SYM_FUNC_START_LOCAL_NOALIGN(name)		\
+	SYM_START(name, SYM_L_LOCAL, SYM_A_NONE)
 #endif
 
+/* SYM_FUNC_START_WEAK -- use for weak functions */
+#ifndef SYM_FUNC_START_WEAK
+#define SYM_FUNC_START_WEAK(name)			\
+	SYM_START(name, SYM_L_WEAK, SYM_A_ALIGN)
 #endif
+
+/* SYM_FUNC_START_WEAK_NOALIGN -- use for weak functions, w/o alignment */
+#ifndef SYM_FUNC_START_WEAK_NOALIGN
+#define SYM_FUNC_START_WEAK_NOALIGN(name)		\
+	SYM_START(name, SYM_L_WEAK, SYM_A_NONE)
+#endif
+
+/* SYM_FUNC_END_ALIAS -- the end of LOCAL_ALIASed or ALIASed function */
+#ifndef SYM_FUNC_END_ALIAS
+#define SYM_FUNC_END_ALIAS(name)			\
+	SYM_END(name, SYM_T_FUNC)
+#endif
+
+/*
+ * SYM_FUNC_END -- the end of SYM_FUNC_START_LOCAL, SYM_FUNC_START,
+ * SYM_FUNC_START_WEAK, ...
+ */
+#ifndef SYM_FUNC_END
+/* the same as SYM_FUNC_END_ALIAS, see comment near SYM_FUNC_START */
+#define SYM_FUNC_END(name)				\
+	SYM_END(name, SYM_T_FUNC)
+#endif
+
+/* SYM_CODE_START -- use for non-C (special) functions */
+#ifndef SYM_CODE_START
+#define SYM_CODE_START(name)				\
+	SYM_START(name, SYM_L_GLOBAL, SYM_A_ALIGN)
+#endif
+
+/* SYM_CODE_START_NOALIGN -- use for non-C (special) functions, w/o alignment */
+#ifndef SYM_CODE_START_NOALIGN
+#define SYM_CODE_START_NOALIGN(name)			\
+	SYM_START(name, SYM_L_GLOBAL, SYM_A_NONE)
+#endif
+
+/* SYM_CODE_START_LOCAL -- use for local non-C (special) functions */
+#ifndef SYM_CODE_START_LOCAL
+#define SYM_CODE_START_LOCAL(name)			\
+	SYM_START(name, SYM_L_LOCAL, SYM_A_ALIGN)
+#endif
+
+/*
+ * SYM_CODE_START_LOCAL_NOALIGN -- use for local non-C (special) functions,
+ * w/o alignment
+ */
+#ifndef SYM_CODE_START_LOCAL_NOALIGN
+#define SYM_CODE_START_LOCAL_NOALIGN(name)		\
+	SYM_START(name, SYM_L_LOCAL, SYM_A_NONE)
+#endif
+
+/* SYM_CODE_END -- the end of SYM_CODE_START_LOCAL, SYM_CODE_START, ... */
+#ifndef SYM_CODE_END
+#define SYM_CODE_END(name)				\
+	SYM_END(name, SYM_T_NONE)
+#endif
+
+/* === data annotations === */
+
+/* SYM_DATA_START -- global data symbol */
+#ifndef SYM_DATA_START
+#define SYM_DATA_START(name)				\
+	SYM_START(name, SYM_L_GLOBAL, SYM_A_NONE)
+#endif
+
+/* SYM_DATA_START -- local data symbol */
+#ifndef SYM_DATA_START_LOCAL
+#define SYM_DATA_START_LOCAL(name)			\
+	SYM_START(name, SYM_L_LOCAL, SYM_A_NONE)
+#endif
+
+/* SYM_DATA_END -- the end of SYM_DATA_START symbol */
+#ifndef SYM_DATA_END
+#define SYM_DATA_END(name)				\
+	SYM_END(name, SYM_T_OBJECT)
+#endif
+
+/* SYM_DATA_END_LABEL -- the labeled end of SYM_DATA_START symbol */
+#ifndef SYM_DATA_END_LABEL
+#define SYM_DATA_END_LABEL(name, linkage, label)	\
+	linkage(label) ASM_NL				\
+	.type label SYM_T_OBJECT ASM_NL			\
+	label:						\
+	SYM_END(name, SYM_T_OBJECT)
+#endif
+
+/* SYM_DATA -- start+end wrapper around simple global data */
+#ifndef SYM_DATA
+#define SYM_DATA(name, data...)				\
+	SYM_DATA_START(name) ASM_NL				\
+	data ASM_NL						\
+	SYM_DATA_END(name)
+#endif
+
+/* SYM_DATA_LOCAL -- start+end wrapper around simple local data */
+#ifndef SYM_DATA_LOCAL
+#define SYM_DATA_LOCAL(name, data...)			\
+	SYM_DATA_START_LOCAL(name) ASM_NL			\
+	data ASM_NL						\
+	SYM_DATA_END(name)
+#endif
+
+#endif /* __ASSEMBLY__ */
+
+#endif /* _LINUX_LINKAGE_H */
-- 
2.23.0


_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xenproject.org
https://lists.xenproject.org/mailman/listinfo/xen-devel

^ permalink raw reply related	[flat|nested] 110+ messages in thread

* [Xen-devel] [PATCH v9 01/28] linkage: Introduce new macros for assembler symbols
@ 2019-10-11 11:50   ` Jiri Slaby
  0 siblings, 0 replies; 110+ messages in thread
From: Jiri Slaby @ 2019-10-11 11:50 UTC (permalink / raw)
  To: bp
  Cc: linux-arch, Juergen Gross, Peter Zijlstra, jpoimboe, Len Brown,
	Boris Ostrovsky, Linus Torvalds, linux-pm, x86,
	Rafael J. Wysocki, linux-kernel, Ingo Molnar, mingo,
	Pavel Machek, hpa, xen-devel, tglx, Jiri Slaby, Andrew Morton

Introduce new C macros for annotations of functions and data in
assembly. There is a long-standing mess in macros like ENTRY, END,
ENDPROC and similar. They are used in different manners and sometimes
incorrectly.

So introduce macros with clear use to annotate assembly as follows:

a) Support macros for the ones below
   SYM_T_FUNC -- type used by assembler to mark functions
   SYM_T_OBJECT -- type used by assembler to mark data
   SYM_T_NONE -- type used by assembler to mark entries of unknown type

   They are defined as STT_FUNC, STT_OBJECT, and STT_NOTYPE
   respectively. According to the gas manual, this is the most portable
   way. I am not sure about other assemblers, so this can be switched
   back to %function and %object if this turns into a problem.
   Architectures can also override them by something like ", @function"
   if they need.

   SYM_A_ALIGN, SYM_A_NONE -- align the symbol?
   SYM_L_GLOBAL, SYM_L_WEAK, SYM_L_LOCAL -- linkage of symbols

b) Mostly internal annotations, used by the ones below
   SYM_ENTRY -- use only if you have to (for non-paired symbols)
   SYM_START -- use only if you have to (for paired symbols)
   SYM_END -- use only if you have to (for paired symbols)

c) Annotations for code
   SYM_INNER_LABEL_ALIGN -- only for labels in the middle of code
   SYM_INNER_LABEL -- only for labels in the middle of code

   SYM_FUNC_START_LOCAL_ALIAS -- use where there are two local names for
	one function
   SYM_FUNC_START_ALIAS -- use where there are two global names for one
	function
   SYM_FUNC_END_ALIAS -- the end of LOCAL_ALIASed or ALIASed function

   SYM_FUNC_START -- use for global functions
   SYM_FUNC_START_NOALIGN -- use for global functions, w/o alignment
   SYM_FUNC_START_LOCAL -- use for local functions
   SYM_FUNC_START_LOCAL_NOALIGN -- use for local functions, w/o
	alignment
   SYM_FUNC_START_WEAK -- use for weak functions
   SYM_FUNC_START_WEAK_NOALIGN -- use for weak functions, w/o alignment
   SYM_FUNC_END -- the end of SYM_FUNC_START_LOCAL, SYM_FUNC_START,
	SYM_FUNC_START_WEAK, ...

   For functions with special (non-C) calling conventions:
   SYM_CODE_START -- use for non-C (special) functions
   SYM_CODE_START_NOALIGN -- use for non-C (special) functions, w/o
	alignment
   SYM_CODE_START_LOCAL -- use for local non-C (special) functions
   SYM_CODE_START_LOCAL_NOALIGN -- use for local non-C (special)
	functions, w/o alignment
   SYM_CODE_END -- the end of SYM_CODE_START_LOCAL or SYM_CODE_START

d) For data
   SYM_DATA_START -- global data symbol
   SYM_DATA_START_LOCAL -- local data symbol
   SYM_DATA_END -- the end of the SYM_DATA_START symbol
   SYM_DATA_END_LABEL -- the labeled end of SYM_DATA_START symbol
   SYM_DATA -- start+end wrapper around simple global data
   SYM_DATA_LOCAL -- start+end wrapper around simple local data

==========

The macros allow to pair starts and ends of functions and mark functions
correctly in the output ELF objects.

All users of the old macros in x86 are converted to use these in further
patches.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: hpa@zytor.com
Cc: Ingo Molnar <mingo@kernel.org>
Cc: jpoimboe@redhat.com
Cc: Juergen Gross <jgross@suse.com>
Cc: Len Brown <len.brown@intel.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org
Cc: linux-pm@vger.kernel.org
Cc: Borislav Petkov <bp@alien8.de>
Cc: mingo@redhat.com
Cc: Pavel Machek <pavel@ucw.cz>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: xen-devel@lists.xenproject.org
Cc: x86@kernel.org
---

Notes:
    [v2]
    * use SYM_ prefix and sane names
    * add SYM_START and SYM_END and parametrize all the macros
    
    [v3]
    * add SYM_DATA, SYM_DATA_LOCAL, and SYM_DATA_END_LABEL
    
    [v4]
    * add _NOALIGN versions of some macros
    * add _CODE_ derivates of _FUNC_ macros
    
    [v5]
    * drop "SIMPLE" from data annotations
    * switch NOALIGN and ALIGN variants of inner labels
    * s/visibility/linkage/; s@SYM_V_@SYM_L_@
    * add Documentation
    
    [v6]
    * fixed typos found by Randy Dunlap
    * remove doubled INNER_LABEL macros, one pair was unused
    
    [v8]
    * use lkml.kernel.org for links
    * link the docs from index.rst (by Boris)
    * fixed typos on the docs
    
    [v9]
    * updated the docs as requested by Boris

 Documentation/asm-annotations.rst | 216 ++++++++++++++++++++++++++
 Documentation/index.rst           |   8 +
 arch/x86/include/asm/linkage.h    |  10 +-
 include/linux/linkage.h           | 245 +++++++++++++++++++++++++++++-
 4 files changed, 468 insertions(+), 11 deletions(-)
 create mode 100644 Documentation/asm-annotations.rst

diff --git a/Documentation/asm-annotations.rst b/Documentation/asm-annotations.rst
new file mode 100644
index 000000000000..29ccd6e61fe5
--- /dev/null
+++ b/Documentation/asm-annotations.rst
@@ -0,0 +1,216 @@
+Assembler Annotations
+=====================
+
+Copyright (c) 2017-2019 Jiri Slaby
+
+This document describes the new macros for annotation of data and code in
+assembly. In particular, it contains information about ``SYM_FUNC_START``,
+``SYM_FUNC_END``, ``SYM_CODE_START``, and similar.
+
+Rationale
+---------
+Some code like entries, trampolines, or boot code needs to be written in
+assembly. The same as in C, such code is grouped into functions and
+accompanied with data. Standard assemblers do not force users into precisely
+marking these pieces as code, data, or even specifying their length.
+Nevertheless, assemblers provide developers with such annotations to aid
+debuggers throughout assembly. On top of that, developers also want to mark
+some functions as *global* in order to be visible outside of their translation
+units.
+
+Over time, the Linux kernel has adopted macros from various projects (like
+``binutils``) to facilitate such annotations. So for historic reasons,
+developers have been using ``ENTRY``, ``END``, ``ENDPROC``, and other
+annotations in assembly.  Due to the lack of their documentation, the macros
+are used in rather wrong contexts at some locations. Clearly, ``ENTRY`` was
+intended to denote the beginning of global symbols (be it data or code).
+``END`` used to mark the end of data or end of special functions with
+*non-standard* calling convention. In contrast, ``ENDPROC`` should annotate
+only ends of *standard* functions.
+
+When these macros are used correctly, they help assemblers generate a nice
+object with both sizes and types set correctly. For example, the result of
+``arch/x86/lib/putuser.S``::
+
+   Num:    Value          Size Type    Bind   Vis      Ndx Name
+    25: 0000000000000000    33 FUNC    GLOBAL DEFAULT    1 __put_user_1
+    29: 0000000000000030    37 FUNC    GLOBAL DEFAULT    1 __put_user_2
+    32: 0000000000000060    36 FUNC    GLOBAL DEFAULT    1 __put_user_4
+    35: 0000000000000090    37 FUNC    GLOBAL DEFAULT    1 __put_user_8
+
+This is not only important for debugging purposes. When there are properly
+annotated objects like this, tools can be run on them to generate more useful
+information. In particular, on properly annotated objects, ``objtool`` can be
+run to check and fix the object if needed. Currently, ``objtool`` can report
+missing frame pointer setup/destruction in functions. It can also
+automatically generate annotations for :doc:`ORC unwinder <x86/orc-unwinder>`
+for most code. Both of these are especially important to support reliable
+stack traces which are in turn necessary for :doc:`Kernel live patching
+<livepatch/livepatch>`.
+
+Caveat and Discussion
+---------------------
+As one might realize, there were only three macros previously. That is indeed
+insufficient to cover all the combinations of cases:
+
+* standard/non-standard function
+* code/data
+* global/local symbol
+
+There was a discussion_ and instead of extending the current ``ENTRY/END*``
+macros, it was decided that brand new macros should be introduced instead::
+
+    So how about using macro names that actually show the purpose, instead
+    of importing all the crappy, historic, essentially randomly chosen
+    debug symbol macro names from the binutils and older kernels?
+
+.. _discussion: https://lkml.kernel.org/r/20170217104757.28588-1-jslaby@suse.cz
+
+Macros Description
+------------------
+
+The new macros are prefixed with the ``SYM_`` prefix and can be divided into
+three main groups:
+
+1. ``SYM_FUNC_*`` -- to annotate C-like functions. This means functions with
+   standard C calling conventions, i.e. the stack contains a return address at
+   the predefined place and a return from the function can happen in a
+   standard way. When frame pointers are enabled, save/restore of frame
+   pointer shall happen at the start/end of a function, respectively, too.
+
+   Checking tools like ``objtool`` should ensure such marked functions conform
+   to these rules. The tools can also easily annotate these functions with
+   debugging information (like *ORC data*) automatically.
+
+2. ``SYM_CODE_*`` -- special functions called with special stack. Be it
+   interrupt handlers with special stack content, trampolines, or startup
+   functions.
+
+   Checking tools mostly ignore checking of these functions. But some debug
+   information still can be generated automatically. For correct debug data,
+   this code needs hints like ``UNWIND_HINT_REGS`` provided by developers.
+
+3. ``SYM_DATA*`` -- obviously data belonging to ``.data`` sections and not to
+   ``.text``. Data do not contain instructions, so they have to be treated
+   specially by the tools: they should not treat the bytes as instructions,
+   nor assign any debug information to them.
+
+Instruction Macros
+~~~~~~~~~~~~~~~~~~
+This section covers ``SYM_FUNC_*`` and ``SYM_CODE_*`` enumerated above.
+
+* ``SYM_FUNC_START`` and ``SYM_FUNC_START_LOCAL`` are supposed to be **the
+  most frequent markings**. They are used for functions with standard calling
+  conventions -- global and local. Like in C, they both align the functions to
+  architecture specific ``__ALIGN`` bytes. There are also ``_NOALIGN`` variants
+  for special cases where developers do not want this implicit alignment.
+
+  ``SYM_FUNC_START_WEAK`` and ``SYM_FUNC_START_WEAK_NOALIGN`` markings are
+  also offered as an assembler counterpart to the *weak* attribute known from
+  C.
+
+  All of these **shall** be coupled with ``SYM_FUNC_END``. First, it marks
+  the sequence of instructions as a function and computes its size to the
+  generated object file. Second, it also eases checking and processing such
+  object files as the tools can trivially find exact function boundaries.
+
+  So in most cases, developers should write something like in the following
+  example, having some asm instructions in between the macros, of course::
+
+    SYM_FUNC_START(function_hook)
+        ... asm insns ...
+    SYM_FUNC_END(function_hook)
+
+  In fact, this kind of annotation corresponds to the now deprecated ``ENTRY``
+  and ``ENDPROC`` macros.
+
+* ``SYM_FUNC_START_ALIAS`` and ``SYM_FUNC_START_LOCAL_ALIAS`` serve for those
+  who decided to have two or more names for one function. The typical use is::
+
+    SYM_FUNC_START_ALIAS(__memset)
+    SYM_FUNC_START(memset)
+        ... asm insns ...
+    SYM_FUNC_END(memset)
+    SYM_FUNC_END_ALIAS(__memset)
+
+  In this example, one can call ``__memset`` or ``memset`` with the same
+  result, except the debug information for the instructions is generated to
+  the object file only once -- for the non-``ALIAS`` case.
+
+* ``SYM_CODE_START`` and ``SYM_CODE_START_LOCAL`` should be used only in
+  special cases -- if you know what you are doing. This is used exclusively
+  for interrupt handlers and similar where the calling convention is not the C
+  one. ``_NOALIGN`` variants exist too. The use is the same as for the ``FUNC``
+  category above::
+
+    SYM_CODE_START_LOCAL(bad_put_user)
+        ... asm insns ...
+    SYM_CODE_END(bad_put_user)
+
+  Again, every ``SYM_CODE_START*`` **shall** be coupled by ``SYM_CODE_END``.
+
+  To some extent, this category corresponds to deprecated ``ENTRY`` and
+  ``END``. Except ``END`` had several other meanings too.
+
+* ``SYM_INNER_LABEL*`` is used to denote a label inside some
+  ``SYM_{CODE,FUNC}_START`` and ``SYM_{CODE,FUNC}_END``.  They are very similar
+  to C labels, except they can be made global. An example of use::
+
+    SYM_CODE_START(ftrace_caller)
+        /* save_mcount_regs fills in first two parameters */
+        ...
+
+    SYM_INNER_LABEL(ftrace_caller_op_ptr, SYM_L_GLOBAL)
+        /* Load the ftrace_ops into the 3rd parameter */
+        ...
+
+    SYM_INNER_LABEL(ftrace_call, SYM_L_GLOBAL)
+        call ftrace_stub
+        ...
+        retq
+    SYM_CODE_END(ftrace_caller)
+
+Data Macros
+~~~~~~~~~~~
+Similar to instructions, there is a couple of macros to describe data in the
+assembly.
+
+* ``SYM_DATA_START`` and ``SYM_DATA_START_LOCAL`` mark the start of some data
+  and shall be used in conjunction with either ``SYM_DATA_END``, or
+  ``SYM_DATA_END_LABEL``. The latter adds also a label to the end, so that
+  people can use ``lstack`` and (local) ``lstack_end`` in the following
+  example::
+
+    SYM_DATA_START_LOCAL(lstack)
+        .skip 4096
+    SYM_DATA_END_LABEL(lstack, SYM_L_LOCAL, lstack_end)
+
+* ``SYM_DATA`` and ``SYM_DATA_LOCAL`` are variants for simple, mostly one-line
+  data::
+
+    SYM_DATA(HEAP,     .long rm_heap)
+    SYM_DATA(heap_end, .long rm_stack)
+
+  In the end, they expand to ``SYM_DATA_START`` with ``SYM_DATA_END``
+  internally.
+
+Support Macros
+~~~~~~~~~~~~~~
+All the above reduce themselves to some invocation of ``SYM_START``,
+``SYM_END``, or ``SYM_ENTRY`` at last. Normally, developers should avoid using
+these.
+
+Further, in the above examples, one could see ``SYM_L_LOCAL``. There are also
+``SYM_L_GLOBAL`` and ``SYM_L_WEAK``. All are intended to denote linkage of a
+symbol marked by them. They are used either in ``_LABEL`` variants of the
+earlier macros, or in ``SYM_START``.
+
+
+Overriding Macros
+~~~~~~~~~~~~~~~~~
+Architecture can also override any of the macros in their own
+``asm/linkage.h``, including macros specifying the type of a symbol
+(``SYM_T_FUNC``, ``SYM_T_OBJECT``, and ``SYM_T_NONE``).  As every macro
+described in this file is surrounded by ``#ifdef`` + ``#endif``, it is enough
+to define the macros differently in the aforementioned architecture-dependent
+header.
diff --git a/Documentation/index.rst b/Documentation/index.rst
index b843e313d2f2..2ceab197246f 100644
--- a/Documentation/index.rst
+++ b/Documentation/index.rst
@@ -135,6 +135,14 @@ needed).
    mic/index
    scheduler/index
 
+Architecture-agnostic documentation
+-----------------------------------
+
+.. toctree::
+   :maxdepth: 2
+
+   asm-annotations
+
 Architecture-specific documentation
 -----------------------------------
 
diff --git a/arch/x86/include/asm/linkage.h b/arch/x86/include/asm/linkage.h
index 14caa9d9fb7f..e07188e8d763 100644
--- a/arch/x86/include/asm/linkage.h
+++ b/arch/x86/include/asm/linkage.h
@@ -13,9 +13,13 @@
 
 #ifdef __ASSEMBLY__
 
-#define GLOBAL(name)	\
-	.globl name;	\
-	name:
+/*
+ * GLOBAL is DEPRECATED
+ *
+ * use SYM_DATA_START, SYM_FUNC_START, SYM_INNER_LABEL, SYM_CODE_START, or
+ * similar
+ */
+#define GLOBAL(name)	SYM_ENTRY(name, SYM_L_GLOBAL, SYM_A_NONE)
 
 #if defined(CONFIG_X86_64) || defined(CONFIG_X86_ALIGNMENT_16)
 #define __ALIGN		.p2align 4, 0x90
diff --git a/include/linux/linkage.h b/include/linux/linkage.h
index 7e020782ade2..f3ae8f3dea2c 100644
--- a/include/linux/linkage.h
+++ b/include/linux/linkage.h
@@ -75,32 +75,58 @@
 
 #ifdef __ASSEMBLY__
 
+/* SYM_T_FUNC -- type used by assembler to mark functions */
+#ifndef SYM_T_FUNC
+#define SYM_T_FUNC				STT_FUNC
+#endif
+
+/* SYM_T_OBJECT -- type used by assembler to mark data */
+#ifndef SYM_T_OBJECT
+#define SYM_T_OBJECT				STT_OBJECT
+#endif
+
+/* SYM_T_NONE -- type used by assembler to mark entries of unknown type */
+#ifndef SYM_T_NONE
+#define SYM_T_NONE				STT_NOTYPE
+#endif
+
+/* SYM_A_* -- align the symbol? */
+#define SYM_A_ALIGN				ALIGN
+#define SYM_A_NONE				/* nothing */
+
+/* SYM_L_* -- linkage of symbols */
+#define SYM_L_GLOBAL(name)			.globl name
+#define SYM_L_WEAK(name)			.weak name
+#define SYM_L_LOCAL(name)			/* nothing */
+
 #ifndef LINKER_SCRIPT
 #define ALIGN __ALIGN
 #define ALIGN_STR __ALIGN_STR
 
+/* === DEPRECATED annotations === */
+
 #ifndef GLOBAL
+/* deprecated, use SYM_DATA*, SYM_ENTRY, or similar */
 #define GLOBAL(name) \
 	.globl name ASM_NL \
 	name:
 #endif
 
 #ifndef ENTRY
+/* deprecated, use SYM_FUNC_START */
 #define ENTRY(name) \
-	.globl name ASM_NL \
-	ALIGN ASM_NL \
-	name:
+	SYM_FUNC_START(name)
 #endif
 #endif /* LINKER_SCRIPT */
 
 #ifndef WEAK
+/* deprecated, use SYM_FUNC_START_WEAK* */
 #define WEAK(name)	   \
-	.weak name ASM_NL   \
-	ALIGN ASM_NL \
-	name:
+	SYM_FUNC_START_WEAK(name)
 #endif
 
 #ifndef END
+/* deprecated, use SYM_FUNC_END, SYM_DATA_END, or SYM_END */
 #define END(name) \
 	.size name, .-name
 #endif
@@ -110,11 +136,214 @@
  * static analysis tools such as stack depth analyzer.
  */
 #ifndef ENDPROC
+/* deprecated, use SYM_FUNC_END */
 #define ENDPROC(name) \
-	.type name, @function ASM_NL \
-	END(name)
+	SYM_FUNC_END(name)
+#endif
+
+/* === generic annotations === */
+
+/* SYM_ENTRY -- use only if you have to for non-paired symbols */
+#ifndef SYM_ENTRY
+#define SYM_ENTRY(name, linkage, align...)		\
+	linkage(name) ASM_NL				\
+	align ASM_NL					\
+	name:
+#endif
+
+/* SYM_START -- use only if you have to */
+#ifndef SYM_START
+#define SYM_START(name, linkage, align...)		\
+	SYM_ENTRY(name, linkage, align)
+#endif
+
+/* SYM_END -- use only if you have to */
+#ifndef SYM_END
+#define SYM_END(name, sym_type)				\
+	.type name sym_type ASM_NL			\
+	.size name, .-name
+#endif
+
+/* === code annotations === */
+
+/*
+ * FUNC -- C-like functions (proper stack frame etc.)
+ * CODE -- non-C code (e.g. irq handlers with different, special stack etc.)
+ *
+ * Objtool validates stack for FUNC, but not for CODE.
+ * Objtool generates debug info for both FUNC & CODE, but needs special
+ * annotations for each CODE's start (to describe the actual stack frame).
+ *
+ * ALIAS -- does not generate debug info -- the aliased function will
+ */
+
+/* SYM_INNER_LABEL_ALIGN -- only for labels in the middle of code */
+#ifndef SYM_INNER_LABEL_ALIGN
+#define SYM_INNER_LABEL_ALIGN(name, linkage)	\
+	.type name SYM_T_NONE ASM_NL			\
+	SYM_ENTRY(name, linkage, SYM_A_ALIGN)
+#endif
+
+/* SYM_INNER_LABEL -- only for labels in the middle of code */
+#ifndef SYM_INNER_LABEL
+#define SYM_INNER_LABEL(name, linkage)		\
+	.type name SYM_T_NONE ASM_NL			\
+	SYM_ENTRY(name, linkage, SYM_A_NONE)
+#endif
+
+/*
+ * SYM_FUNC_START_LOCAL_ALIAS -- use where there are two local names for one
+ * function
+ */
+#ifndef SYM_FUNC_START_LOCAL_ALIAS
+#define SYM_FUNC_START_LOCAL_ALIAS(name)		\
+	SYM_START(name, SYM_L_LOCAL, SYM_A_ALIGN)
+#endif
+
+/*
+ * SYM_FUNC_START_ALIAS -- use where there are two global names for one
+ * function
+ */
+#ifndef SYM_FUNC_START_ALIAS
+#define SYM_FUNC_START_ALIAS(name)			\
+	SYM_START(name, SYM_L_GLOBAL, SYM_A_ALIGN)
+#endif
+
+/* SYM_FUNC_START -- use for global functions */
+#ifndef SYM_FUNC_START
+/*
+ * The same as SYM_FUNC_START_ALIAS, but we will need to distinguish these two
+ * later.
+ */
+#define SYM_FUNC_START(name)				\
+	SYM_START(name, SYM_L_GLOBAL, SYM_A_ALIGN)
+#endif
+
+/* SYM_FUNC_START_NOALIGN -- use for global functions, w/o alignment */
+#ifndef SYM_FUNC_START_NOALIGN
+#define SYM_FUNC_START_NOALIGN(name)			\
+	SYM_START(name, SYM_L_GLOBAL, SYM_A_NONE)
+#endif
+
+/* SYM_FUNC_START_LOCAL -- use for local functions */
+#ifndef SYM_FUNC_START_LOCAL
+/* the same as SYM_FUNC_START_LOCAL_ALIAS, see comment near SYM_FUNC_START */
+#define SYM_FUNC_START_LOCAL(name)			\
+	SYM_START(name, SYM_L_LOCAL, SYM_A_ALIGN)
 #endif
 
+/* SYM_FUNC_START_LOCAL_NOALIGN -- use for local functions, w/o alignment */
+#ifndef SYM_FUNC_START_LOCAL_NOALIGN
+#define SYM_FUNC_START_LOCAL_NOALIGN(name)		\
+	SYM_START(name, SYM_L_LOCAL, SYM_A_NONE)
 #endif
 
+/* SYM_FUNC_START_WEAK -- use for weak functions */
+#ifndef SYM_FUNC_START_WEAK
+#define SYM_FUNC_START_WEAK(name)			\
+	SYM_START(name, SYM_L_WEAK, SYM_A_ALIGN)
 #endif
+
+/* SYM_FUNC_START_WEAK_NOALIGN -- use for weak functions, w/o alignment */
+#ifndef SYM_FUNC_START_WEAK_NOALIGN
+#define SYM_FUNC_START_WEAK_NOALIGN(name)		\
+	SYM_START(name, SYM_L_WEAK, SYM_A_NONE)
+#endif
+
+/* SYM_FUNC_END_ALIAS -- the end of LOCAL_ALIASed or ALIASed function */
+#ifndef SYM_FUNC_END_ALIAS
+#define SYM_FUNC_END_ALIAS(name)			\
+	SYM_END(name, SYM_T_FUNC)
+#endif
+
+/*
+ * SYM_FUNC_END -- the end of SYM_FUNC_START_LOCAL, SYM_FUNC_START,
+ * SYM_FUNC_START_WEAK, ...
+ */
+#ifndef SYM_FUNC_END
+/* the same as SYM_FUNC_END_ALIAS, see comment near SYM_FUNC_START */
+#define SYM_FUNC_END(name)				\
+	SYM_END(name, SYM_T_FUNC)
+#endif
+
+/* SYM_CODE_START -- use for non-C (special) functions */
+#ifndef SYM_CODE_START
+#define SYM_CODE_START(name)				\
+	SYM_START(name, SYM_L_GLOBAL, SYM_A_ALIGN)
+#endif
+
+/* SYM_CODE_START_NOALIGN -- use for non-C (special) functions, w/o alignment */
+#ifndef SYM_CODE_START_NOALIGN
+#define SYM_CODE_START_NOALIGN(name)			\
+	SYM_START(name, SYM_L_GLOBAL, SYM_A_NONE)
+#endif
+
+/* SYM_CODE_START_LOCAL -- use for local non-C (special) functions */
+#ifndef SYM_CODE_START_LOCAL
+#define SYM_CODE_START_LOCAL(name)			\
+	SYM_START(name, SYM_L_LOCAL, SYM_A_ALIGN)
+#endif
+
+/*
+ * SYM_CODE_START_LOCAL_NOALIGN -- use for local non-C (special) functions,
+ * w/o alignment
+ */
+#ifndef SYM_CODE_START_LOCAL_NOALIGN
+#define SYM_CODE_START_LOCAL_NOALIGN(name)		\
+	SYM_START(name, SYM_L_LOCAL, SYM_A_NONE)
+#endif
+
+/* SYM_CODE_END -- the end of SYM_CODE_START_LOCAL, SYM_CODE_START, ... */
+#ifndef SYM_CODE_END
+#define SYM_CODE_END(name)				\
+	SYM_END(name, SYM_T_NONE)
+#endif
+
+/* === data annotations === */
+
+/* SYM_DATA_START -- global data symbol */
+#ifndef SYM_DATA_START
+#define SYM_DATA_START(name)				\
+	SYM_START(name, SYM_L_GLOBAL, SYM_A_NONE)
+#endif
+
+/* SYM_DATA_START -- local data symbol */
+#ifndef SYM_DATA_START_LOCAL
+#define SYM_DATA_START_LOCAL(name)			\
+	SYM_START(name, SYM_L_LOCAL, SYM_A_NONE)
+#endif
+
+/* SYM_DATA_END -- the end of SYM_DATA_START symbol */
+#ifndef SYM_DATA_END
+#define SYM_DATA_END(name)				\
+	SYM_END(name, SYM_T_OBJECT)
+#endif
+
+/* SYM_DATA_END_LABEL -- the labeled end of SYM_DATA_START symbol */
+#ifndef SYM_DATA_END_LABEL
+#define SYM_DATA_END_LABEL(name, linkage, label)	\
+	linkage(label) ASM_NL				\
+	.type label SYM_T_OBJECT ASM_NL			\
+	label:						\
+	SYM_END(name, SYM_T_OBJECT)
+#endif
+
+/* SYM_DATA -- start+end wrapper around simple global data */
+#ifndef SYM_DATA
+#define SYM_DATA(name, data...)				\
+	SYM_DATA_START(name) ASM_NL				\
+	data ASM_NL						\
+	SYM_DATA_END(name)
+#endif
+
+/* SYM_DATA_LOCAL -- start+end wrapper around simple local data */
+#ifndef SYM_DATA_LOCAL
+#define SYM_DATA_LOCAL(name, data...)			\
+	SYM_DATA_START_LOCAL(name) ASM_NL			\
+	data ASM_NL						\
+	SYM_DATA_END(name)
+#endif
+
+#endif /* __ASSEMBLY__ */
+
+#endif /* _LINUX_LINKAGE_H */
-- 
2.23.0


_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xenproject.org
https://lists.xenproject.org/mailman/listinfo/xen-devel

^ permalink raw reply related	[flat|nested] 110+ messages in thread

* [PATCH v9 02/28] x86/asm/suspend: Use SYM_DATA for data
  2019-10-11 11:50 [PATCH v9 00/28] New macros for assembler symbols Jiri Slaby
  2019-10-11 11:50   ` Jiri Slaby
@ 2019-10-11 11:50 ` Jiri Slaby
  2019-10-18 16:30   ` [tip: x86/asm] " tip-bot2 for Jiri Slaby
  2019-10-11 11:50 ` [PATCH v9 03/28] x86/asm: Annotate relocate_kernel_{32,64}.c Jiri Slaby
                   ` (25 subsequent siblings)
  27 siblings, 1 reply; 110+ messages in thread
From: Jiri Slaby @ 2019-10-11 11:50 UTC (permalink / raw)
  To: bp
  Cc: tglx, mingo, hpa, x86, linux-arch, linux-kernel, Jiri Slaby,
	Rafael J . Wysocki, Pavel Machek, Len Brown, linux-pm

Some global data in the suspend code were marked as `ENTRY'. ENTRY was
intended for functions and shall be paired with ENDPROC. ENTRY also
aligns symbols to 16 bytes which creates unnecessary holes here between
data. Note that:
* saved_magic (long) in wakeup_32 is still prepended by section's ALIGN
* saved_magic (quad) in wakeup_64 follows a bunch of quads which are
  aligned (but need not be aligned to 16)

Since historical markings are being dropped, make proper use of newly
added SYM_DATA in this code.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Pavel Machek <pavel@ucw.cz>
Cc: Len Brown <len.brown@intel.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: x86@kernel.org
Cc: linux-pm@vger.kernel.org
---
 arch/x86/kernel/acpi/wakeup_32.S | 2 +-
 arch/x86/kernel/acpi/wakeup_64.S | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/x86/kernel/acpi/wakeup_32.S b/arch/x86/kernel/acpi/wakeup_32.S
index e95e95960156..427249292aef 100644
--- a/arch/x86/kernel/acpi/wakeup_32.S
+++ b/arch/x86/kernel/acpi/wakeup_32.S
@@ -90,7 +90,7 @@ ret_point:
 
 .data
 ALIGN
-ENTRY(saved_magic)	.long	0
+SYM_DATA(saved_magic,	.long 0)
 saved_eip:		.long 0
 
 # saved registers
diff --git a/arch/x86/kernel/acpi/wakeup_64.S b/arch/x86/kernel/acpi/wakeup_64.S
index 7f9ade13bbcf..462a20f386e0 100644
--- a/arch/x86/kernel/acpi/wakeup_64.S
+++ b/arch/x86/kernel/acpi/wakeup_64.S
@@ -136,4 +136,4 @@ saved_rbx:		.quad	0
 saved_rip:		.quad	0
 saved_rsp:		.quad	0
 
-ENTRY(saved_magic)	.quad	0
+SYM_DATA(saved_magic,	.quad	0)
-- 
2.23.0


^ permalink raw reply related	[flat|nested] 110+ messages in thread

* [PATCH v9 03/28] x86/asm: Annotate relocate_kernel_{32,64}.c
  2019-10-11 11:50 [PATCH v9 00/28] New macros for assembler symbols Jiri Slaby
  2019-10-11 11:50   ` Jiri Slaby
  2019-10-11 11:50 ` [PATCH v9 02/28] x86/asm/suspend: Use SYM_DATA for data Jiri Slaby
@ 2019-10-11 11:50 ` Jiri Slaby
  2019-10-14 13:15   ` Borislav Petkov
  2019-10-18 16:30   ` [tip: x86/asm] " tip-bot2 for Jiri Slaby
  2019-10-11 11:50 ` [PATCH v9 04/28] x86/asm/entry: Annotate THUNKs Jiri Slaby
                   ` (24 subsequent siblings)
  27 siblings, 2 replies; 110+ messages in thread
From: Jiri Slaby @ 2019-10-11 11:50 UTC (permalink / raw)
  To: bp; +Cc: tglx, mingo, hpa, x86, linux-arch, linux-kernel, Jiri Slaby

There are functions in relocate_kernel_{32,64}.c which are not
annotated. This makes automatic works on them rather hard. So annotate
all the functions now.

Note that these are not C-like functions, so FUNC is not used. Instead
CODE markers are used. Also the functions are not aligned, so the
NOALIGN versions are used:
- SYM_CODE_START_NOALIGN
- SYM_CODE_START_LOCAL_NOALIGN
- SYM_CODE_END

In return, we get:
  0000   108 NOTYPE  GLOBAL DEFAULT    1 relocate_kernel
  006c   165 NOTYPE  LOCAL  DEFAULT    1 identity_mapped
  0146   127 NOTYPE  LOCAL  DEFAULT    1 swap_pages
  0111    53 NOTYPE  LOCAL  DEFAULT    1 virtual_mapped

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: x86@kernel.org
---
 arch/x86/kernel/relocate_kernel_32.S | 13 ++++++++-----
 arch/x86/kernel/relocate_kernel_64.S | 13 ++++++++-----
 2 files changed, 16 insertions(+), 10 deletions(-)

diff --git a/arch/x86/kernel/relocate_kernel_32.S b/arch/x86/kernel/relocate_kernel_32.S
index ee26df08002e..94b33885f8d2 100644
--- a/arch/x86/kernel/relocate_kernel_32.S
+++ b/arch/x86/kernel/relocate_kernel_32.S
@@ -35,8 +35,7 @@
 #define CP_PA_BACKUP_PAGES_MAP	DATA(0x1c)
 
 	.text
-	.globl relocate_kernel
-relocate_kernel:
+SYM_CODE_START_NOALIGN(relocate_kernel)
 	/* Save the CPU context, used for jumping back */
 
 	pushl	%ebx
@@ -93,8 +92,9 @@ relocate_kernel:
 	addl    $(identity_mapped - relocate_kernel), %eax
 	pushl   %eax
 	ret
+SYM_CODE_END(relocate_kernel)
 
-identity_mapped:
+SYM_CODE_START_LOCAL_NOALIGN(identity_mapped)
 	/* set return address to 0 if not preserving context */
 	pushl	$0
 	/* store the start address on the stack */
@@ -191,8 +191,9 @@ identity_mapped:
 	addl	$(virtual_mapped - relocate_kernel), %eax
 	pushl	%eax
 	ret
+SYM_CODE_END(identity_mapped)
 
-virtual_mapped:
+SYM_CODE_START_LOCAL_NOALIGN(virtual_mapped)
 	movl	CR4(%edi), %eax
 	movl	%eax, %cr4
 	movl	CR3(%edi), %eax
@@ -208,9 +209,10 @@ virtual_mapped:
 	popl	%esi
 	popl	%ebx
 	ret
+SYM_CODE_END(virtual_mapped)
 
 	/* Do the copies */
-swap_pages:
+SYM_CODE_START_LOCAL_NOALIGN(swap_pages)
 	movl	8(%esp), %edx
 	movl	4(%esp), %ecx
 	pushl	%ebp
@@ -270,6 +272,7 @@ swap_pages:
 	popl	%ebx
 	popl	%ebp
 	ret
+SYM_CODE_END(swap_pages)
 
 	.globl kexec_control_code_size
 .set kexec_control_code_size, . - relocate_kernel
diff --git a/arch/x86/kernel/relocate_kernel_64.S b/arch/x86/kernel/relocate_kernel_64.S
index c51ccff5cd01..ef3ba99068d3 100644
--- a/arch/x86/kernel/relocate_kernel_64.S
+++ b/arch/x86/kernel/relocate_kernel_64.S
@@ -38,8 +38,7 @@
 	.text
 	.align PAGE_SIZE
 	.code64
-	.globl relocate_kernel
-relocate_kernel:
+SYM_CODE_START_NOALIGN(relocate_kernel)
 	/*
 	 * %rdi indirection_page
 	 * %rsi page_list
@@ -103,8 +102,9 @@ relocate_kernel:
 	addq	$(identity_mapped - relocate_kernel), %r8
 	pushq	%r8
 	ret
+SYM_CODE_END(relocate_kernel)
 
-identity_mapped:
+SYM_CODE_START_LOCAL_NOALIGN(identity_mapped)
 	/* set return address to 0 if not preserving context */
 	pushq	$0
 	/* store the start address on the stack */
@@ -209,8 +209,9 @@ identity_mapped:
 	movq	$virtual_mapped, %rax
 	pushq	%rax
 	ret
+SYM_CODE_END(identity_mapped)
 
-virtual_mapped:
+SYM_CODE_START_LOCAL_NOALIGN(virtual_mapped)
 	movq	RSP(%r8), %rsp
 	movq	CR4(%r8), %rax
 	movq	%rax, %cr4
@@ -228,9 +229,10 @@ virtual_mapped:
 	popq	%rbp
 	popq	%rbx
 	ret
+SYM_CODE_END(virtual_mapped)
 
 	/* Do the copies */
-swap_pages:
+SYM_CODE_START_LOCAL_NOALIGN(swap_pages)
 	movq	%rdi, %rcx 	/* Put the page_list in %rcx */
 	xorl	%edi, %edi
 	xorl	%esi, %esi
@@ -283,6 +285,7 @@ swap_pages:
 	jmp	0b
 3:
 	ret
+SYM_CODE_END(swap_pages)
 
 	.globl kexec_control_code_size
 .set kexec_control_code_size, . - relocate_kernel
-- 
2.23.0


^ permalink raw reply related	[flat|nested] 110+ messages in thread

* [PATCH v9 04/28] x86/asm/entry: Annotate THUNKs
  2019-10-11 11:50 [PATCH v9 00/28] New macros for assembler symbols Jiri Slaby
                   ` (2 preceding siblings ...)
  2019-10-11 11:50 ` [PATCH v9 03/28] x86/asm: Annotate relocate_kernel_{32,64}.c Jiri Slaby
@ 2019-10-11 11:50 ` Jiri Slaby
  2019-10-14 13:38   ` Borislav Petkov
  2019-10-18 16:30   ` [tip: x86/asm] " tip-bot2 for Jiri Slaby
  2019-10-11 11:50 ` [PATCH v9 05/28] x86/asm: Annotate local pseudo-functions Jiri Slaby
                   ` (23 subsequent siblings)
  27 siblings, 2 replies; 110+ messages in thread
From: Jiri Slaby @ 2019-10-11 11:50 UTC (permalink / raw)
  To: bp
  Cc: tglx, mingo, hpa, x86, linux-arch, linux-kernel, Jiri Slaby,
	Andy Lutomirski

Place SYM_*_START_NOALIGN and SYM_*_END around the THUNK macro body.
Preserve @function by FUNC (64bit) and CODE (32bit). Given it was not
marked as aligned, use NOALIGN.

The result:
 Value  Size Type    Bind   Vis      Ndx Name
  0000    28 FUNC    GLOBAL DEFAULT    1 trace_hardirqs_on_thunk
  001c    28 FUNC    GLOBAL DEFAULT    1 trace_hardirqs_off_thunk
  0038    24 FUNC    GLOBAL DEFAULT    1 lockdep_sys_exit_thunk
  0050    24 FUNC    GLOBAL DEFAULT    1 ___preempt_schedule
  0068    24 FUNC    GLOBAL DEFAULT    1 ___preempt_schedule_notra

The annotation of .L_restore does not generate anything to the code (at
the moment). Here, it just serves documentation purposes (as opening and
closing brackets of functions).

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: <x86@kernel.org>
---
 arch/x86/entry/thunk_32.S | 4 ++--
 arch/x86/entry/thunk_64.S | 7 ++++---
 2 files changed, 6 insertions(+), 5 deletions(-)

diff --git a/arch/x86/entry/thunk_32.S b/arch/x86/entry/thunk_32.S
index 2713490611a3..e010d4ae11f1 100644
--- a/arch/x86/entry/thunk_32.S
+++ b/arch/x86/entry/thunk_32.S
@@ -10,8 +10,7 @@
 
 	/* put return address in eax (arg1) */
 	.macro THUNK name, func, put_ret_addr_in_eax=0
-	.globl \name
-\name:
+SYM_CODE_START_NOALIGN(\name)
 	pushl %eax
 	pushl %ecx
 	pushl %edx
@@ -27,6 +26,7 @@
 	popl %eax
 	ret
 	_ASM_NOKPROBE(\name)
+SYM_CODE_END(\name)
 	.endm
 
 #ifdef CONFIG_TRACE_IRQFLAGS
diff --git a/arch/x86/entry/thunk_64.S b/arch/x86/entry/thunk_64.S
index ea5c4167086c..c5c3b6e86e62 100644
--- a/arch/x86/entry/thunk_64.S
+++ b/arch/x86/entry/thunk_64.S
@@ -12,7 +12,7 @@
 
 	/* rdi:	arg1 ... normal C conventions. rax is saved/restored. */
 	.macro THUNK name, func, put_ret_addr_in_rdi=0
-	ENTRY(\name)
+SYM_FUNC_START_NOALIGN(\name)
 	pushq %rbp
 	movq %rsp, %rbp
 
@@ -33,7 +33,7 @@
 
 	call \func
 	jmp  .L_restore
-	ENDPROC(\name)
+SYM_FUNC_END(\name)
 	_ASM_NOKPROBE(\name)
 	.endm
 
@@ -56,7 +56,7 @@
 #if defined(CONFIG_TRACE_IRQFLAGS) \
  || defined(CONFIG_DEBUG_LOCK_ALLOC) \
  || defined(CONFIG_PREEMPTION)
-.L_restore:
+SYM_CODE_START_LOCAL_NOALIGN(.L_restore)
 	popq %r11
 	popq %r10
 	popq %r9
@@ -69,4 +69,5 @@
 	popq %rbp
 	ret
 	_ASM_NOKPROBE(.L_restore)
+SYM_CODE_END(.L_restore)
 #endif
-- 
2.23.0


^ permalink raw reply related	[flat|nested] 110+ messages in thread

* [PATCH v9 05/28] x86/asm: Annotate local pseudo-functions
  2019-10-11 11:50 [PATCH v9 00/28] New macros for assembler symbols Jiri Slaby
                   ` (3 preceding siblings ...)
  2019-10-11 11:50 ` [PATCH v9 04/28] x86/asm/entry: Annotate THUNKs Jiri Slaby
@ 2019-10-11 11:50 ` Jiri Slaby
  2019-10-18 16:30   ` [tip: x86/asm] " tip-bot2 for Jiri Slaby
  2019-10-11 11:50 ` [PATCH v9 06/28] x86/asm/crypto: Annotate local functions Jiri Slaby
                   ` (22 subsequent siblings)
  27 siblings, 1 reply; 110+ messages in thread
From: Jiri Slaby @ 2019-10-11 11:50 UTC (permalink / raw)
  To: bp
  Cc: tglx, mingo, hpa, x86, linux-arch, linux-kernel, Jiri Slaby,
	Andy Lutomirski

Use the newly added SYM_CODE_START_LOCAL* to annotate starts of all
pseudo-functions (those ending END until now) which do not have ".globl"
annotation. This is needed to balance END for tools that generate
debuginfo. Note that ENDs are switched to SYM_CODE_END too so that
everybody can see the pairing.

C-like functions (which handle frame ptr etc.) are not annotated here,
hence SYM_CODE_* macros are used here, not SYM_FUNC_*.  Note that 32bit
early_idt_handler_common already had ENDPROC -- switch that to
SYM_CODE_END for the same reason as above (and to be the same as 64bit).

While early_idt_handler_common is LOCAL, it is not named starting ".L"
as it happens to appear in call traces.

bad_get_user*, and bad_put_user are now aligned, as they are separate
functions. They do not mind to be aligned -- no need to be compact
there.

early_idt_handler_common is aligned now too, as it is after
early_idt_handler_array, so as well no need to be compact there.

verify_cpu is self-standing and included in other .S files, so align it
too.

The others have alignment preserved to what it used to be (using the
_NOALIGN variant of macros).

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: <x86@kernel.org>
---

Notes:
    [v3] annotate more functions
    [v4] describe the alignments changes

 arch/x86/entry/entry_64.S    | 3 ++-
 arch/x86/kernel/head_32.S    | 4 ++--
 arch/x86/kernel/head_64.S    | 4 ++--
 arch/x86/kernel/verify_cpu.S | 4 ++--
 arch/x86/lib/getuser.S       | 6 ++++--
 arch/x86/lib/putuser.S       | 3 ++-
 6 files changed, 14 insertions(+), 10 deletions(-)

diff --git a/arch/x86/entry/entry_64.S b/arch/x86/entry/entry_64.S
index 86cbb22208c8..db43526cecfa 100644
--- a/arch/x86/entry/entry_64.S
+++ b/arch/x86/entry/entry_64.S
@@ -1061,7 +1061,7 @@ EXPORT_SYMBOL(native_load_gs_index)
 	_ASM_EXTABLE(.Lgs_change, .Lbad_gs)
 	.section .fixup, "ax"
 	/* running with kernelgs */
-.Lbad_gs:
+SYM_CODE_START_LOCAL_NOALIGN(.Lbad_gs)
 	SWAPGS					/* switch back to user gs */
 .macro ZAP_GS
 	/* This can't be a string because the preprocessor needs to see it. */
@@ -1072,6 +1072,7 @@ EXPORT_SYMBOL(native_load_gs_index)
 	xorl	%eax, %eax
 	movl	%eax, %gs
 	jmp	2b
+SYM_CODE_END(.Lbad_gs)
 	.previous
 
 /* Call softirq on interrupt stack. Interrupts are off. */
diff --git a/arch/x86/kernel/head_32.S b/arch/x86/kernel/head_32.S
index 7feb953e10d2..aec1fdb80221 100644
--- a/arch/x86/kernel/head_32.S
+++ b/arch/x86/kernel/head_32.S
@@ -409,7 +409,7 @@ ENTRY(early_idt_handler_array)
 	.endr
 ENDPROC(early_idt_handler_array)
 	
-early_idt_handler_common:
+SYM_CODE_START_LOCAL(early_idt_handler_common)
 	/*
 	 * The stack is the hardware frame, an error code or zero, and the
 	 * vector number.
@@ -460,7 +460,7 @@ early_idt_handler_common:
 	decl	%ss:early_recursion_flag
 	addl	$4, %esp	/* pop pt_regs->orig_ax */
 	iret
-ENDPROC(early_idt_handler_common)
+SYM_CODE_END(early_idt_handler_common)
 
 /* This is the default interrupt "handler" :-) */
 ENTRY(early_ignore_irq)
diff --git a/arch/x86/kernel/head_64.S b/arch/x86/kernel/head_64.S
index f00d7c0c1c86..5b42552d929f 100644
--- a/arch/x86/kernel/head_64.S
+++ b/arch/x86/kernel/head_64.S
@@ -291,7 +291,7 @@ ENTRY(early_idt_handler_array)
 	UNWIND_HINT_IRET_REGS offset=16
 END(early_idt_handler_array)
 
-early_idt_handler_common:
+SYM_CODE_START_LOCAL(early_idt_handler_common)
 	/*
 	 * The stack is the hardware frame, an error code or zero, and the
 	 * vector number.
@@ -333,7 +333,7 @@ early_idt_handler_common:
 20:
 	decl early_recursion_flag(%rip)
 	jmp restore_regs_and_return_to_kernel
-END(early_idt_handler_common)
+SYM_CODE_END(early_idt_handler_common)
 
 #define NEXT_PAGE(name) \
 	.balign	PAGE_SIZE; \
diff --git a/arch/x86/kernel/verify_cpu.S b/arch/x86/kernel/verify_cpu.S
index a024c4f7ba56..641f0fe1e5b4 100644
--- a/arch/x86/kernel/verify_cpu.S
+++ b/arch/x86/kernel/verify_cpu.S
@@ -31,7 +31,7 @@
 #include <asm/cpufeatures.h>
 #include <asm/msr-index.h>
 
-ENTRY(verify_cpu)
+SYM_FUNC_START_LOCAL(verify_cpu)
 	pushf				# Save caller passed flags
 	push	$0			# Kill any dangerous flags
 	popf
@@ -137,4 +137,4 @@ ENTRY(verify_cpu)
 	popf				# Restore caller passed flags
 	xorl %eax, %eax
 	ret
-ENDPROC(verify_cpu)
+SYM_FUNC_END(verify_cpu)
diff --git a/arch/x86/lib/getuser.S b/arch/x86/lib/getuser.S
index 9578eb88fc87..f9f59eb85635 100644
--- a/arch/x86/lib/getuser.S
+++ b/arch/x86/lib/getuser.S
@@ -115,21 +115,23 @@ ENDPROC(__get_user_8)
 EXPORT_SYMBOL(__get_user_8)
 
 
-.Lbad_get_user_clac:
+SYM_CODE_START_LOCAL(.Lbad_get_user_clac)
 	ASM_CLAC
 bad_get_user:
 	xor %edx,%edx
 	mov $(-EFAULT),%_ASM_AX
 	ret
+SYM_CODE_END(.Lbad_get_user_clac)
 
 #ifdef CONFIG_X86_32
-.Lbad_get_user_8_clac:
+SYM_CODE_START_LOCAL(.Lbad_get_user_8_clac)
 	ASM_CLAC
 bad_get_user_8:
 	xor %edx,%edx
 	xor %ecx,%ecx
 	mov $(-EFAULT),%_ASM_AX
 	ret
+SYM_CODE_END(.Lbad_get_user_8_clac)
 #endif
 
 	_ASM_EXTABLE_UA(1b, .Lbad_get_user_clac)
diff --git a/arch/x86/lib/putuser.S b/arch/x86/lib/putuser.S
index 126dd6a9ec9b..a9391d772c81 100644
--- a/arch/x86/lib/putuser.S
+++ b/arch/x86/lib/putuser.S
@@ -91,11 +91,12 @@ ENTRY(__put_user_8)
 ENDPROC(__put_user_8)
 EXPORT_SYMBOL(__put_user_8)
 
-.Lbad_put_user_clac:
+SYM_CODE_START_LOCAL(.Lbad_put_user_clac)
 	ASM_CLAC
 .Lbad_put_user:
 	movl $-EFAULT,%eax
 	RET
+SYM_CODE_END(.Lbad_put_user_clac)
 
 	_ASM_EXTABLE_UA(1b, .Lbad_put_user_clac)
 	_ASM_EXTABLE_UA(2b, .Lbad_put_user_clac)
-- 
2.23.0


^ permalink raw reply related	[flat|nested] 110+ messages in thread

* [PATCH v9 06/28] x86/asm/crypto: Annotate local functions
  2019-10-11 11:50 [PATCH v9 00/28] New macros for assembler symbols Jiri Slaby
                   ` (4 preceding siblings ...)
  2019-10-11 11:50 ` [PATCH v9 05/28] x86/asm: Annotate local pseudo-functions Jiri Slaby
@ 2019-10-11 11:50 ` Jiri Slaby
  2019-10-18 16:30   ` [tip: x86/asm] " tip-bot2 for Jiri Slaby
  2019-10-11 11:50 ` [PATCH v9 07/28] x86/boot: " Jiri Slaby
                   ` (21 subsequent siblings)
  27 siblings, 1 reply; 110+ messages in thread
From: Jiri Slaby @ 2019-10-11 11:50 UTC (permalink / raw)
  To: bp
  Cc: tglx, mingo, hpa, x86, linux-arch, linux-kernel, Jiri Slaby,
	Herbert Xu, David S. Miller, linux-crypto

Use the newly added SYM_FUNC_START_LOCAL to annotate starts of all
functions which do not have ".globl" annotation, but their ends are
annotated by ENDPROC. This is needed to balance ENDPROC for tools that
generate debuginfo.

These fucntions are not prepended with ".L" as they might appear in
call traces and they wouldn't be visible after such change.

To be symmetric, the functions' ENDPROCs are converted to the new
SYM_FUNC_END.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: <x86@kernel.org>
Cc: <linux-crypto@vger.kernel.org>
---
 arch/x86/crypto/aegis128-aesni-asm.S         |  8 ++--
 arch/x86/crypto/aesni-intel_asm.S            | 49 ++++++++------------
 arch/x86/crypto/camellia-aesni-avx-asm_64.S  | 20 ++++----
 arch/x86/crypto/camellia-aesni-avx2-asm_64.S | 20 ++++----
 arch/x86/crypto/cast5-avx-x86_64-asm_64.S    |  8 ++--
 arch/x86/crypto/cast6-avx-x86_64-asm_64.S    |  8 ++--
 arch/x86/crypto/chacha-ssse3-x86_64.S        |  4 +-
 arch/x86/crypto/ghash-clmulni-intel_asm.S    |  4 +-
 arch/x86/crypto/serpent-avx-x86_64-asm_64.S  |  8 ++--
 arch/x86/crypto/serpent-avx2-asm_64.S        |  8 ++--
 arch/x86/crypto/twofish-avx-x86_64-asm_64.S  |  8 ++--
 11 files changed, 68 insertions(+), 77 deletions(-)

diff --git a/arch/x86/crypto/aegis128-aesni-asm.S b/arch/x86/crypto/aegis128-aesni-asm.S
index 4434607e366d..b7026fdef4ff 100644
--- a/arch/x86/crypto/aegis128-aesni-asm.S
+++ b/arch/x86/crypto/aegis128-aesni-asm.S
@@ -71,7 +71,7 @@
  *   %r8
  *   %r9
  */
-__load_partial:
+SYM_FUNC_START_LOCAL(__load_partial)
 	xor %r9d, %r9d
 	pxor MSG, MSG
 
@@ -123,7 +123,7 @@ __load_partial:
 
 .Lld_partial_8:
 	ret
-ENDPROC(__load_partial)
+SYM_FUNC_END(__load_partial)
 
 /*
  * __store_partial: internal ABI
@@ -137,7 +137,7 @@ ENDPROC(__load_partial)
  *   %r9
  *   %r10
  */
-__store_partial:
+SYM_FUNC_START_LOCAL(__store_partial)
 	mov LEN, %r8
 	mov DST, %r9
 
@@ -181,7 +181,7 @@ __store_partial:
 
 .Lst_partial_1:
 	ret
-ENDPROC(__store_partial)
+SYM_FUNC_END(__store_partial)
 
 /*
  * void crypto_aegis128_aesni_init(void *state, const void *key, const void *iv);
diff --git a/arch/x86/crypto/aesni-intel_asm.S b/arch/x86/crypto/aesni-intel_asm.S
index e40bdf024ba7..e0a5fb462a0a 100644
--- a/arch/x86/crypto/aesni-intel_asm.S
+++ b/arch/x86/crypto/aesni-intel_asm.S
@@ -1759,7 +1759,7 @@ ENDPROC(aesni_gcm_finalize)
 
 .align 4
 _key_expansion_128:
-_key_expansion_256a:
+SYM_FUNC_START_LOCAL(_key_expansion_256a)
 	pshufd $0b11111111, %xmm1, %xmm1
 	shufps $0b00010000, %xmm0, %xmm4
 	pxor %xmm4, %xmm0
@@ -1770,10 +1770,9 @@ _key_expansion_256a:
 	add $0x10, TKEYP
 	ret
 ENDPROC(_key_expansion_128)
-ENDPROC(_key_expansion_256a)
+SYM_FUNC_END(_key_expansion_256a)
 
-.align 4
-_key_expansion_192a:
+SYM_FUNC_START_LOCAL(_key_expansion_192a)
 	pshufd $0b01010101, %xmm1, %xmm1
 	shufps $0b00010000, %xmm0, %xmm4
 	pxor %xmm4, %xmm0
@@ -1795,10 +1794,9 @@ _key_expansion_192a:
 	movaps %xmm1, 0x10(TKEYP)
 	add $0x20, TKEYP
 	ret
-ENDPROC(_key_expansion_192a)
+SYM_FUNC_END(_key_expansion_192a)
 
-.align 4
-_key_expansion_192b:
+SYM_FUNC_START_LOCAL(_key_expansion_192b)
 	pshufd $0b01010101, %xmm1, %xmm1
 	shufps $0b00010000, %xmm0, %xmm4
 	pxor %xmm4, %xmm0
@@ -1815,10 +1813,9 @@ _key_expansion_192b:
 	movaps %xmm0, (TKEYP)
 	add $0x10, TKEYP
 	ret
-ENDPROC(_key_expansion_192b)
+SYM_FUNC_END(_key_expansion_192b)
 
-.align 4
-_key_expansion_256b:
+SYM_FUNC_START_LOCAL(_key_expansion_256b)
 	pshufd $0b10101010, %xmm1, %xmm1
 	shufps $0b00010000, %xmm2, %xmm4
 	pxor %xmm4, %xmm2
@@ -1828,7 +1825,7 @@ _key_expansion_256b:
 	movaps %xmm2, (TKEYP)
 	add $0x10, TKEYP
 	ret
-ENDPROC(_key_expansion_256b)
+SYM_FUNC_END(_key_expansion_256b)
 
 /*
  * int aesni_set_key(struct crypto_aes_ctx *ctx, const u8 *in_key,
@@ -1981,8 +1978,7 @@ ENDPROC(aesni_enc)
  *	KEY
  *	TKEYP (T1)
  */
-.align 4
-_aesni_enc1:
+SYM_FUNC_START_LOCAL(_aesni_enc1)
 	movaps (KEYP), KEY		# key
 	mov KEYP, TKEYP
 	pxor KEY, STATE		# round 0
@@ -2025,7 +2021,7 @@ _aesni_enc1:
 	movaps 0x70(TKEYP), KEY
 	AESENCLAST KEY STATE
 	ret
-ENDPROC(_aesni_enc1)
+SYM_FUNC_END(_aesni_enc1)
 
 /*
  * _aesni_enc4:	internal ABI
@@ -2045,8 +2041,7 @@ ENDPROC(_aesni_enc1)
  *	KEY
  *	TKEYP (T1)
  */
-.align 4
-_aesni_enc4:
+SYM_FUNC_START_LOCAL(_aesni_enc4)
 	movaps (KEYP), KEY		# key
 	mov KEYP, TKEYP
 	pxor KEY, STATE1		# round 0
@@ -2134,7 +2129,7 @@ _aesni_enc4:
 	AESENCLAST KEY STATE3
 	AESENCLAST KEY STATE4
 	ret
-ENDPROC(_aesni_enc4)
+SYM_FUNC_END(_aesni_enc4)
 
 /*
  * void aesni_dec (struct crypto_aes_ctx *ctx, u8 *dst, const u8 *src)
@@ -2173,8 +2168,7 @@ ENDPROC(aesni_dec)
  *	KEY
  *	TKEYP (T1)
  */
-.align 4
-_aesni_dec1:
+SYM_FUNC_START_LOCAL(_aesni_dec1)
 	movaps (KEYP), KEY		# key
 	mov KEYP, TKEYP
 	pxor KEY, STATE		# round 0
@@ -2217,7 +2211,7 @@ _aesni_dec1:
 	movaps 0x70(TKEYP), KEY
 	AESDECLAST KEY STATE
 	ret
-ENDPROC(_aesni_dec1)
+SYM_FUNC_END(_aesni_dec1)
 
 /*
  * _aesni_dec4:	internal ABI
@@ -2237,8 +2231,7 @@ ENDPROC(_aesni_dec1)
  *	KEY
  *	TKEYP (T1)
  */
-.align 4
-_aesni_dec4:
+SYM_FUNC_START_LOCAL(_aesni_dec4)
 	movaps (KEYP), KEY		# key
 	mov KEYP, TKEYP
 	pxor KEY, STATE1		# round 0
@@ -2326,7 +2319,7 @@ _aesni_dec4:
 	AESDECLAST KEY STATE3
 	AESDECLAST KEY STATE4
 	ret
-ENDPROC(_aesni_dec4)
+SYM_FUNC_END(_aesni_dec4)
 
 /*
  * void aesni_ecb_enc(struct crypto_aes_ctx *ctx, const u8 *dst, u8 *src,
@@ -2604,8 +2597,7 @@ ENDPROC(aesni_cbc_dec)
  *	INC:	== 1, in little endian
  *	BSWAP_MASK == endian swapping mask
  */
-.align 4
-_aesni_inc_init:
+SYM_FUNC_START_LOCAL(_aesni_inc_init)
 	movaps .Lbswap_mask, BSWAP_MASK
 	movaps IV, CTR
 	PSHUFB_XMM BSWAP_MASK CTR
@@ -2613,7 +2605,7 @@ _aesni_inc_init:
 	MOVQ_R64_XMM TCTR_LOW INC
 	MOVQ_R64_XMM CTR TCTR_LOW
 	ret
-ENDPROC(_aesni_inc_init)
+SYM_FUNC_END(_aesni_inc_init)
 
 /*
  * _aesni_inc:		internal ABI
@@ -2630,8 +2622,7 @@ ENDPROC(_aesni_inc_init)
  *	CTR:	== output IV, in little endian
  *	TCTR_LOW: == lower qword of CTR
  */
-.align 4
-_aesni_inc:
+SYM_FUNC_START_LOCAL(_aesni_inc)
 	paddq INC, CTR
 	add $1, TCTR_LOW
 	jnc .Linc_low
@@ -2642,7 +2633,7 @@ _aesni_inc:
 	movaps CTR, IV
 	PSHUFB_XMM BSWAP_MASK IV
 	ret
-ENDPROC(_aesni_inc)
+SYM_FUNC_END(_aesni_inc)
 
 /*
  * void aesni_ctr_enc(struct crypto_aes_ctx *ctx, const u8 *dst, u8 *src,
diff --git a/arch/x86/crypto/camellia-aesni-avx-asm_64.S b/arch/x86/crypto/camellia-aesni-avx-asm_64.S
index a14af6eb09cb..f4408ca55fdb 100644
--- a/arch/x86/crypto/camellia-aesni-avx-asm_64.S
+++ b/arch/x86/crypto/camellia-aesni-avx-asm_64.S
@@ -189,20 +189,20 @@
  * larger and would only be 0.5% faster (on sandy-bridge).
  */
 .align 8
-roundsm16_x0_x1_x2_x3_x4_x5_x6_x7_y0_y1_y2_y3_y4_y5_y6_y7_cd:
+SYM_FUNC_START_LOCAL(roundsm16_x0_x1_x2_x3_x4_x5_x6_x7_y0_y1_y2_y3_y4_y5_y6_y7_cd)
 	roundsm16(%xmm0, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7,
 		  %xmm8, %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14, %xmm15,
 		  %rcx, (%r9));
 	ret;
-ENDPROC(roundsm16_x0_x1_x2_x3_x4_x5_x6_x7_y0_y1_y2_y3_y4_y5_y6_y7_cd)
+SYM_FUNC_END(roundsm16_x0_x1_x2_x3_x4_x5_x6_x7_y0_y1_y2_y3_y4_y5_y6_y7_cd)
 
 .align 8
-roundsm16_x4_x5_x6_x7_x0_x1_x2_x3_y4_y5_y6_y7_y0_y1_y2_y3_ab:
+SYM_FUNC_START_LOCAL(roundsm16_x4_x5_x6_x7_x0_x1_x2_x3_y4_y5_y6_y7_y0_y1_y2_y3_ab)
 	roundsm16(%xmm4, %xmm5, %xmm6, %xmm7, %xmm0, %xmm1, %xmm2, %xmm3,
 		  %xmm12, %xmm13, %xmm14, %xmm15, %xmm8, %xmm9, %xmm10, %xmm11,
 		  %rax, (%r9));
 	ret;
-ENDPROC(roundsm16_x4_x5_x6_x7_x0_x1_x2_x3_y4_y5_y6_y7_y0_y1_y2_y3_ab)
+SYM_FUNC_END(roundsm16_x4_x5_x6_x7_x0_x1_x2_x3_y4_y5_y6_y7_y0_y1_y2_y3_ab)
 
 /*
  * IN/OUT:
@@ -722,7 +722,7 @@ ENDPROC(roundsm16_x4_x5_x6_x7_x0_x1_x2_x3_y4_y5_y6_y7_y0_y1_y2_y3_ab)
 .text
 
 .align 8
-__camellia_enc_blk16:
+SYM_FUNC_START_LOCAL(__camellia_enc_blk16)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rax: temporary storage, 256 bytes
@@ -806,10 +806,10 @@ __camellia_enc_blk16:
 		     %xmm15, %rax, %rcx, 24);
 
 	jmp .Lenc_done;
-ENDPROC(__camellia_enc_blk16)
+SYM_FUNC_END(__camellia_enc_blk16)
 
 .align 8
-__camellia_dec_blk16:
+SYM_FUNC_START_LOCAL(__camellia_dec_blk16)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rax: temporary storage, 256 bytes
@@ -891,7 +891,7 @@ __camellia_dec_blk16:
 	      ((key_table + (24) * 8) + 4)(CTX));
 
 	jmp .Ldec_max24;
-ENDPROC(__camellia_dec_blk16)
+SYM_FUNC_END(__camellia_dec_blk16)
 
 ENTRY(camellia_ecb_enc_16way)
 	/* input:
@@ -1120,7 +1120,7 @@ ENDPROC(camellia_ctr_16way)
 	vpxor tmp, iv, iv;
 
 .align 8
-camellia_xts_crypt_16way:
+SYM_FUNC_START_LOCAL(camellia_xts_crypt_16way)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst (16 blocks)
@@ -1254,7 +1254,7 @@ camellia_xts_crypt_16way:
 
 	FRAME_END
 	ret;
-ENDPROC(camellia_xts_crypt_16way)
+SYM_FUNC_END(camellia_xts_crypt_16way)
 
 ENTRY(camellia_xts_enc_16way)
 	/* input:
diff --git a/arch/x86/crypto/camellia-aesni-avx2-asm_64.S b/arch/x86/crypto/camellia-aesni-avx2-asm_64.S
index 4be4c7c3ba27..72ae3edd0997 100644
--- a/arch/x86/crypto/camellia-aesni-avx2-asm_64.S
+++ b/arch/x86/crypto/camellia-aesni-avx2-asm_64.S
@@ -223,20 +223,20 @@
  * larger and would only marginally faster.
  */
 .align 8
-roundsm32_x0_x1_x2_x3_x4_x5_x6_x7_y0_y1_y2_y3_y4_y5_y6_y7_cd:
+SYM_FUNC_START_LOCAL(roundsm32_x0_x1_x2_x3_x4_x5_x6_x7_y0_y1_y2_y3_y4_y5_y6_y7_cd)
 	roundsm32(%ymm0, %ymm1, %ymm2, %ymm3, %ymm4, %ymm5, %ymm6, %ymm7,
 		  %ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14, %ymm15,
 		  %rcx, (%r9));
 	ret;
-ENDPROC(roundsm32_x0_x1_x2_x3_x4_x5_x6_x7_y0_y1_y2_y3_y4_y5_y6_y7_cd)
+SYM_FUNC_END(roundsm32_x0_x1_x2_x3_x4_x5_x6_x7_y0_y1_y2_y3_y4_y5_y6_y7_cd)
 
 .align 8
-roundsm32_x4_x5_x6_x7_x0_x1_x2_x3_y4_y5_y6_y7_y0_y1_y2_y3_ab:
+SYM_FUNC_START_LOCAL(roundsm32_x4_x5_x6_x7_x0_x1_x2_x3_y4_y5_y6_y7_y0_y1_y2_y3_ab)
 	roundsm32(%ymm4, %ymm5, %ymm6, %ymm7, %ymm0, %ymm1, %ymm2, %ymm3,
 		  %ymm12, %ymm13, %ymm14, %ymm15, %ymm8, %ymm9, %ymm10, %ymm11,
 		  %rax, (%r9));
 	ret;
-ENDPROC(roundsm32_x4_x5_x6_x7_x0_x1_x2_x3_y4_y5_y6_y7_y0_y1_y2_y3_ab)
+SYM_FUNC_END(roundsm32_x4_x5_x6_x7_x0_x1_x2_x3_y4_y5_y6_y7_y0_y1_y2_y3_ab)
 
 /*
  * IN/OUT:
@@ -760,7 +760,7 @@ ENDPROC(roundsm32_x4_x5_x6_x7_x0_x1_x2_x3_y4_y5_y6_y7_y0_y1_y2_y3_ab)
 .text
 
 .align 8
-__camellia_enc_blk32:
+SYM_FUNC_START_LOCAL(__camellia_enc_blk32)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rax: temporary storage, 512 bytes
@@ -844,10 +844,10 @@ __camellia_enc_blk32:
 		     %ymm15, %rax, %rcx, 24);
 
 	jmp .Lenc_done;
-ENDPROC(__camellia_enc_blk32)
+SYM_FUNC_END(__camellia_enc_blk32)
 
 .align 8
-__camellia_dec_blk32:
+SYM_FUNC_START_LOCAL(__camellia_dec_blk32)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rax: temporary storage, 512 bytes
@@ -929,7 +929,7 @@ __camellia_dec_blk32:
 	      ((key_table + (24) * 8) + 4)(CTX));
 
 	jmp .Ldec_max24;
-ENDPROC(__camellia_dec_blk32)
+SYM_FUNC_END(__camellia_dec_blk32)
 
 ENTRY(camellia_ecb_enc_32way)
 	/* input:
@@ -1222,7 +1222,7 @@ ENDPROC(camellia_ctr_32way)
 	vpxor tmp1, iv, iv;
 
 .align 8
-camellia_xts_crypt_32way:
+SYM_FUNC_START_LOCAL(camellia_xts_crypt_32way)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst (32 blocks)
@@ -1367,7 +1367,7 @@ camellia_xts_crypt_32way:
 
 	FRAME_END
 	ret;
-ENDPROC(camellia_xts_crypt_32way)
+SYM_FUNC_END(camellia_xts_crypt_32way)
 
 ENTRY(camellia_xts_enc_32way)
 	/* input:
diff --git a/arch/x86/crypto/cast5-avx-x86_64-asm_64.S b/arch/x86/crypto/cast5-avx-x86_64-asm_64.S
index dc55c3332fcc..ef86c6a966de 100644
--- a/arch/x86/crypto/cast5-avx-x86_64-asm_64.S
+++ b/arch/x86/crypto/cast5-avx-x86_64-asm_64.S
@@ -209,7 +209,7 @@
 .text
 
 .align 16
-__cast5_enc_blk16:
+SYM_FUNC_START_LOCAL(__cast5_enc_blk16)
 	/* input:
 	 *	%rdi: ctx
 	 *	RL1: blocks 1 and 2
@@ -280,10 +280,10 @@ __cast5_enc_blk16:
 	outunpack_blocks(RR4, RL4, RTMP, RX, RKM);
 
 	ret;
-ENDPROC(__cast5_enc_blk16)
+SYM_FUNC_END(__cast5_enc_blk16)
 
 .align 16
-__cast5_dec_blk16:
+SYM_FUNC_START_LOCAL(__cast5_dec_blk16)
 	/* input:
 	 *	%rdi: ctx
 	 *	RL1: encrypted blocks 1 and 2
@@ -357,7 +357,7 @@ __cast5_dec_blk16:
 .L__skip_dec:
 	vpsrldq $4, RKR, RKR;
 	jmp .L__dec_tail;
-ENDPROC(__cast5_dec_blk16)
+SYM_FUNC_END(__cast5_dec_blk16)
 
 ENTRY(cast5_ecb_enc_16way)
 	/* input:
diff --git a/arch/x86/crypto/cast6-avx-x86_64-asm_64.S b/arch/x86/crypto/cast6-avx-x86_64-asm_64.S
index 4f0a7cdb94d9..b080a7454e70 100644
--- a/arch/x86/crypto/cast6-avx-x86_64-asm_64.S
+++ b/arch/x86/crypto/cast6-avx-x86_64-asm_64.S
@@ -247,7 +247,7 @@
 .text
 
 .align 8
-__cast6_enc_blk8:
+SYM_FUNC_START_LOCAL(__cast6_enc_blk8)
 	/* input:
 	 *	%rdi: ctx
 	 *	RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2: blocks
@@ -292,10 +292,10 @@ __cast6_enc_blk8:
 	outunpack_blocks(RA2, RB2, RC2, RD2, RTMP, RX, RKRF, RKM);
 
 	ret;
-ENDPROC(__cast6_enc_blk8)
+SYM_FUNC_END(__cast6_enc_blk8)
 
 .align 8
-__cast6_dec_blk8:
+SYM_FUNC_START_LOCAL(__cast6_dec_blk8)
 	/* input:
 	 *	%rdi: ctx
 	 *	RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2: encrypted blocks
@@ -339,7 +339,7 @@ __cast6_dec_blk8:
 	outunpack_blocks(RA2, RB2, RC2, RD2, RTMP, RX, RKRF, RKM);
 
 	ret;
-ENDPROC(__cast6_dec_blk8)
+SYM_FUNC_END(__cast6_dec_blk8)
 
 ENTRY(cast6_ecb_enc_8way)
 	/* input:
diff --git a/arch/x86/crypto/chacha-ssse3-x86_64.S b/arch/x86/crypto/chacha-ssse3-x86_64.S
index 2d86c7d6dc88..361d2bfc253c 100644
--- a/arch/x86/crypto/chacha-ssse3-x86_64.S
+++ b/arch/x86/crypto/chacha-ssse3-x86_64.S
@@ -33,7 +33,7 @@ CTRINC:	.octa 0x00000003000000020000000100000000
  *
  * Clobbers: %r8d, %xmm4-%xmm7
  */
-chacha_permute:
+SYM_FUNC_START_LOCAL(chacha_permute)
 
 	movdqa		ROT8(%rip),%xmm4
 	movdqa		ROT16(%rip),%xmm5
@@ -109,7 +109,7 @@ chacha_permute:
 	jnz		.Ldoubleround
 
 	ret
-ENDPROC(chacha_permute)
+SYM_FUNC_END(chacha_permute)
 
 ENTRY(chacha_block_xor_ssse3)
 	# %rdi: Input state matrix, s
diff --git a/arch/x86/crypto/ghash-clmulni-intel_asm.S b/arch/x86/crypto/ghash-clmulni-intel_asm.S
index 5d53effe8abe..e81da25a33ca 100644
--- a/arch/x86/crypto/ghash-clmulni-intel_asm.S
+++ b/arch/x86/crypto/ghash-clmulni-intel_asm.S
@@ -44,7 +44,7 @@
  *	T2
  *	T3
  */
-__clmul_gf128mul_ble:
+SYM_FUNC_START_LOCAL(__clmul_gf128mul_ble)
 	movaps DATA, T1
 	pshufd $0b01001110, DATA, T2
 	pshufd $0b01001110, SHASH, T3
@@ -87,7 +87,7 @@ __clmul_gf128mul_ble:
 	pxor T2, T1
 	pxor T1, DATA
 	ret
-ENDPROC(__clmul_gf128mul_ble)
+SYM_FUNC_END(__clmul_gf128mul_ble)
 
 /* void clmul_ghash_mul(char *dst, const u128 *shash) */
 ENTRY(clmul_ghash_mul)
diff --git a/arch/x86/crypto/serpent-avx-x86_64-asm_64.S b/arch/x86/crypto/serpent-avx-x86_64-asm_64.S
index ddc51dbba3af..a098aa015784 100644
--- a/arch/x86/crypto/serpent-avx-x86_64-asm_64.S
+++ b/arch/x86/crypto/serpent-avx-x86_64-asm_64.S
@@ -555,7 +555,7 @@
 	transpose_4x4(x0, x1, x2, x3, t0, t1, t2)
 
 .align 8
-__serpent_enc_blk8_avx:
+SYM_FUNC_START_LOCAL(__serpent_enc_blk8_avx)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2: blocks
@@ -606,10 +606,10 @@ __serpent_enc_blk8_avx:
 	write_blocks(RA2, RB2, RC2, RD2, RK0, RK1, RK2);
 
 	ret;
-ENDPROC(__serpent_enc_blk8_avx)
+SYM_FUNC_END(__serpent_enc_blk8_avx)
 
 .align 8
-__serpent_dec_blk8_avx:
+SYM_FUNC_START_LOCAL(__serpent_dec_blk8_avx)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2: encrypted blocks
@@ -660,7 +660,7 @@ __serpent_dec_blk8_avx:
 	write_blocks(RC2, RD2, RB2, RE2, RK0, RK1, RK2);
 
 	ret;
-ENDPROC(__serpent_dec_blk8_avx)
+SYM_FUNC_END(__serpent_dec_blk8_avx)
 
 ENTRY(serpent_ecb_enc_8way_avx)
 	/* input:
diff --git a/arch/x86/crypto/serpent-avx2-asm_64.S b/arch/x86/crypto/serpent-avx2-asm_64.S
index 37bc1d48106c..6149ba80b4d1 100644
--- a/arch/x86/crypto/serpent-avx2-asm_64.S
+++ b/arch/x86/crypto/serpent-avx2-asm_64.S
@@ -561,7 +561,7 @@
 	transpose_4x4(x0, x1, x2, x3, t0, t1, t2)
 
 .align 8
-__serpent_enc_blk16:
+SYM_FUNC_START_LOCAL(__serpent_enc_blk16)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2: plaintext
@@ -612,10 +612,10 @@ __serpent_enc_blk16:
 	write_blocks(RA2, RB2, RC2, RD2, RK0, RK1, RK2);
 
 	ret;
-ENDPROC(__serpent_enc_blk16)
+SYM_FUNC_END(__serpent_enc_blk16)
 
 .align 8
-__serpent_dec_blk16:
+SYM_FUNC_START_LOCAL(__serpent_dec_blk16)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2: ciphertext
@@ -666,7 +666,7 @@ __serpent_dec_blk16:
 	write_blocks(RC2, RD2, RB2, RE2, RK0, RK1, RK2);
 
 	ret;
-ENDPROC(__serpent_dec_blk16)
+SYM_FUNC_END(__serpent_dec_blk16)
 
 ENTRY(serpent_ecb_enc_16way)
 	/* input:
diff --git a/arch/x86/crypto/twofish-avx-x86_64-asm_64.S b/arch/x86/crypto/twofish-avx-x86_64-asm_64.S
index 698b8f2a56e2..588f0a2f63ab 100644
--- a/arch/x86/crypto/twofish-avx-x86_64-asm_64.S
+++ b/arch/x86/crypto/twofish-avx-x86_64-asm_64.S
@@ -234,7 +234,7 @@
 	vpxor		x3, wkey, x3;
 
 .align 8
-__twofish_enc_blk8:
+SYM_FUNC_START_LOCAL(__twofish_enc_blk8)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2: blocks
@@ -273,10 +273,10 @@ __twofish_enc_blk8:
 	outunpack_blocks(RC2, RD2, RA2, RB2, RK1, RX0, RY0, RK2);
 
 	ret;
-ENDPROC(__twofish_enc_blk8)
+SYM_FUNC_END(__twofish_enc_blk8)
 
 .align 8
-__twofish_dec_blk8:
+SYM_FUNC_START_LOCAL(__twofish_dec_blk8)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	RC1, RD1, RA1, RB1, RC2, RD2, RA2, RB2: encrypted blocks
@@ -313,7 +313,7 @@ __twofish_dec_blk8:
 	outunpack_blocks(RA2, RB2, RC2, RD2, RK1, RX0, RY0, RK2);
 
 	ret;
-ENDPROC(__twofish_dec_blk8)
+SYM_FUNC_END(__twofish_dec_blk8)
 
 ENTRY(twofish_ecb_enc_8way)
 	/* input:
-- 
2.23.0


^ permalink raw reply related	[flat|nested] 110+ messages in thread

* [PATCH v9 07/28] x86/boot: Annotate local functions
  2019-10-11 11:50 [PATCH v9 00/28] New macros for assembler symbols Jiri Slaby
                   ` (5 preceding siblings ...)
  2019-10-11 11:50 ` [PATCH v9 06/28] x86/asm/crypto: Annotate local functions Jiri Slaby
@ 2019-10-11 11:50 ` Jiri Slaby
  2019-10-14 14:27   ` Borislav Petkov
  2019-10-18 16:30   ` [tip: x86/asm] " tip-bot2 for Jiri Slaby
  2019-10-11 11:50 ` [PATCH v9 08/28] x86/uaccess: Annotate local function Jiri Slaby
                   ` (20 subsequent siblings)
  27 siblings, 2 replies; 110+ messages in thread
From: Jiri Slaby @ 2019-10-11 11:50 UTC (permalink / raw)
  To: bp; +Cc: tglx, mingo, hpa, x86, linux-arch, linux-kernel, Jiri Slaby

.Lrelocated, .Lpaging_enabled, .Lno_longmode, and .Lin_pm32 are
self-standing local functions, annotate them as such and preserve "no
alignment".

The annotations do not generate anything yet.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: x86@kernel.org
---

Notes:
    [v9] preserve alignments

 arch/x86/boot/compressed/head_32.S | 3 ++-
 arch/x86/boot/compressed/head_64.S | 9 ++++++---
 arch/x86/boot/pmjump.S             | 4 ++--
 3 files changed, 10 insertions(+), 6 deletions(-)

diff --git a/arch/x86/boot/compressed/head_32.S b/arch/x86/boot/compressed/head_32.S
index 5e30eaaf8576..f9e2a80bd699 100644
--- a/arch/x86/boot/compressed/head_32.S
+++ b/arch/x86/boot/compressed/head_32.S
@@ -209,7 +209,7 @@ ENDPROC(efi32_stub_entry)
 #endif
 
 	.text
-.Lrelocated:
+SYM_FUNC_START_LOCAL_NOALIGN(.Lrelocated)
 
 /*
  * Clear BSS (stack is currently empty)
@@ -260,6 +260,7 @@ ENDPROC(efi32_stub_entry)
  */
 	xorl	%ebx, %ebx
 	jmp	*%eax
+SYM_FUNC_END(.Lrelocated)
 
 #ifdef CONFIG_EFI_STUB
 	.data
diff --git a/arch/x86/boot/compressed/head_64.S b/arch/x86/boot/compressed/head_64.S
index d98cd483377e..7afe6e067066 100644
--- a/arch/x86/boot/compressed/head_64.S
+++ b/arch/x86/boot/compressed/head_64.S
@@ -511,7 +511,7 @@ ENDPROC(efi64_stub_entry)
 #endif
 
 	.text
-.Lrelocated:
+SYM_FUNC_START_LOCAL_NOALIGN(.Lrelocated)
 
 /*
  * Clear BSS (stack is currently empty)
@@ -540,6 +540,7 @@ ENDPROC(efi64_stub_entry)
  * Jump to the decompressed kernel.
  */
 	jmp	*%rax
+SYM_FUNC_END(.Lrelocated)
 
 /*
  * Adjust the global offset table
@@ -635,9 +636,10 @@ ENTRY(trampoline_32bit_src)
 	lret
 
 	.code64
-.Lpaging_enabled:
+SYM_FUNC_START_LOCAL_NOALIGN(.Lpaging_enabled)
 	/* Return from the trampoline */
 	jmp	*%rdi
+SYM_FUNC_END(.Lpaging_enabled)
 
 	/*
          * The trampoline code has a size limit.
@@ -647,11 +649,12 @@ ENTRY(trampoline_32bit_src)
 	.org	trampoline_32bit_src + TRAMPOLINE_32BIT_CODE_SIZE
 
 	.code32
-.Lno_longmode:
+SYM_FUNC_START_LOCAL_NOALIGN(.Lno_longmode)
 	/* This isn't an x86-64 CPU, so hang intentionally, we cannot continue */
 1:
 	hlt
 	jmp     1b
+SYM_FUNC_END(.Lno_longmode)
 
 #include "../../kernel/verify_cpu.S"
 
diff --git a/arch/x86/boot/pmjump.S b/arch/x86/boot/pmjump.S
index ea88d52eeac7..81658fe35380 100644
--- a/arch/x86/boot/pmjump.S
+++ b/arch/x86/boot/pmjump.S
@@ -46,7 +46,7 @@ ENDPROC(protected_mode_jump)
 
 	.code32
 	.section ".text32","ax"
-.Lin_pm32:
+SYM_FUNC_START_LOCAL_NOALIGN(.Lin_pm32)
 	# Set up data segments for flat 32-bit mode
 	movl	%ecx, %ds
 	movl	%ecx, %es
@@ -72,4 +72,4 @@ ENDPROC(protected_mode_jump)
 	lldt	%cx
 
 	jmpl	*%eax			# Jump to the 32-bit entrypoint
-ENDPROC(.Lin_pm32)
+SYM_FUNC_END(.Lin_pm32)
-- 
2.23.0


^ permalink raw reply related	[flat|nested] 110+ messages in thread

* [PATCH v9 08/28] x86/uaccess: Annotate local function
  2019-10-11 11:50 [PATCH v9 00/28] New macros for assembler symbols Jiri Slaby
                   ` (6 preceding siblings ...)
  2019-10-11 11:50 ` [PATCH v9 07/28] x86/boot: " Jiri Slaby
@ 2019-10-11 11:50 ` Jiri Slaby
  2019-10-18 16:30   ` [tip: x86/asm] " tip-bot2 for Jiri Slaby
  2019-10-11 11:50   ` Jiri Slaby
                   ` (19 subsequent siblings)
  27 siblings, 1 reply; 110+ messages in thread
From: Jiri Slaby @ 2019-10-11 11:50 UTC (permalink / raw)
  To: bp; +Cc: tglx, mingo, hpa, x86, linux-arch, linux-kernel, Jiri Slaby

.Lcopy_user_handle_tail is a self-standing local function, annotate it
as such using SYM_CODE_START_LOCAL.

Again, no functional change, just documentation.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: x86@kernel.org
---
 arch/x86/lib/copy_user_64.S | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/arch/x86/lib/copy_user_64.S b/arch/x86/lib/copy_user_64.S
index 86976b55ae74..4a12b3c120bf 100644
--- a/arch/x86/lib/copy_user_64.S
+++ b/arch/x86/lib/copy_user_64.S
@@ -230,8 +230,7 @@ EXPORT_SYMBOL(copy_user_enhanced_fast_string)
  * Output:
  * eax uncopied bytes or 0 if successful.
  */
-ALIGN;
-.Lcopy_user_handle_tail:
+SYM_CODE_START_LOCAL(.Lcopy_user_handle_tail)
 	movl %edx,%ecx
 1:	rep movsb
 2:	mov %ecx,%eax
@@ -239,7 +238,7 @@ ALIGN;
 	ret
 
 	_ASM_EXTABLE_UA(1b, 2b)
-END(.Lcopy_user_handle_tail)
+SYM_CODE_END(.Lcopy_user_handle_tail)
 
 /*
  * copy_user_nocache - Uncached memory copy with exception handling
-- 
2.23.0


^ permalink raw reply related	[flat|nested] 110+ messages in thread

* [PATCH v9 09/28] x86/asm: Annotate aliases
  2019-10-11 11:50 [PATCH v9 00/28] New macros for assembler symbols Jiri Slaby
  2019-10-11 11:50   ` Jiri Slaby
@ 2019-10-11 11:50   ` Jiri Slaby
  2019-10-11 11:50 ` [PATCH v9 03/28] x86/asm: Annotate relocate_kernel_{32,64}.c Jiri Slaby
                     ` (25 subsequent siblings)
  27 siblings, 0 replies; 110+ messages in thread
From: Jiri Slaby @ 2019-10-11 11:50 UTC (permalink / raw)
  To: bp
  Cc: tglx, mingo, hpa, x86, linux-arch, linux-kernel, Jiri Slaby,
	Herbert Xu, David S. Miller, Boris Ostrovsky, Juergen Gross,
	linux-crypto, xen-devel

_key_expansion_128 is an alias to _key_expansion_256a, __memcpy to
memcpy, xen_syscall32_target to xen_sysenter_target, and so on. Annotate
them all using the new SYM_FUNC_START_ALIAS, SYM_FUNC_START_LOCAL_ALIAS,
and SYM_FUNC_END_ALIAS. This will make the tools generating the
debuginfo happy as it avoid nesting and double symbols.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: <x86@kernel.org>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Reviewed-by: Juergen Gross <jgross@suse.com> [xen parts]
Cc: <linux-crypto@vger.kernel.org>
Cc: <xen-devel@lists.xenproject.org>
---
 arch/x86/crypto/aesni-intel_asm.S | 5 ++---
 arch/x86/lib/memcpy_64.S          | 4 ++--
 arch/x86/lib/memmove_64.S         | 4 ++--
 arch/x86/lib/memset_64.S          | 4 ++--
 arch/x86/xen/xen-asm_64.S         | 4 ++--
 5 files changed, 10 insertions(+), 11 deletions(-)

diff --git a/arch/x86/crypto/aesni-intel_asm.S b/arch/x86/crypto/aesni-intel_asm.S
index e0a5fb462a0a..9d8d5f2296e1 100644
--- a/arch/x86/crypto/aesni-intel_asm.S
+++ b/arch/x86/crypto/aesni-intel_asm.S
@@ -1757,8 +1757,7 @@ ENDPROC(aesni_gcm_finalize)
 #endif
 
 
-.align 4
-_key_expansion_128:
+SYM_FUNC_START_LOCAL_ALIAS(_key_expansion_128)
 SYM_FUNC_START_LOCAL(_key_expansion_256a)
 	pshufd $0b11111111, %xmm1, %xmm1
 	shufps $0b00010000, %xmm0, %xmm4
@@ -1769,8 +1768,8 @@ SYM_FUNC_START_LOCAL(_key_expansion_256a)
 	movaps %xmm0, (TKEYP)
 	add $0x10, TKEYP
 	ret
-ENDPROC(_key_expansion_128)
 SYM_FUNC_END(_key_expansion_256a)
+SYM_FUNC_END_ALIAS(_key_expansion_128)
 
 SYM_FUNC_START_LOCAL(_key_expansion_192a)
 	pshufd $0b01010101, %xmm1, %xmm1
diff --git a/arch/x86/lib/memcpy_64.S b/arch/x86/lib/memcpy_64.S
index 92748660ba51..57a64266ba69 100644
--- a/arch/x86/lib/memcpy_64.S
+++ b/arch/x86/lib/memcpy_64.S
@@ -28,7 +28,7 @@
  * Output:
  * rax original destination
  */
-ENTRY(__memcpy)
+SYM_FUNC_START_ALIAS(__memcpy)
 ENTRY(memcpy)
 	ALTERNATIVE_2 "jmp memcpy_orig", "", X86_FEATURE_REP_GOOD, \
 		      "jmp memcpy_erms", X86_FEATURE_ERMS
@@ -42,7 +42,7 @@ ENTRY(memcpy)
 	rep movsb
 	ret
 ENDPROC(memcpy)
-ENDPROC(__memcpy)
+SYM_FUNC_END_ALIAS(__memcpy)
 EXPORT_SYMBOL(memcpy)
 EXPORT_SYMBOL(__memcpy)
 
diff --git a/arch/x86/lib/memmove_64.S b/arch/x86/lib/memmove_64.S
index bbec69d8223b..50c1648311b3 100644
--- a/arch/x86/lib/memmove_64.S
+++ b/arch/x86/lib/memmove_64.S
@@ -26,7 +26,7 @@
  */
 .weak memmove
 
-ENTRY(memmove)
+SYM_FUNC_START_ALIAS(memmove)
 ENTRY(__memmove)
 
 	/* Handle more 32 bytes in loop */
@@ -208,6 +208,6 @@ ENTRY(__memmove)
 13:
 	retq
 ENDPROC(__memmove)
-ENDPROC(memmove)
+SYM_FUNC_END_ALIAS(memmove)
 EXPORT_SYMBOL(__memmove)
 EXPORT_SYMBOL(memmove)
diff --git a/arch/x86/lib/memset_64.S b/arch/x86/lib/memset_64.S
index 9bc861c71e75..927ac44d34aa 100644
--- a/arch/x86/lib/memset_64.S
+++ b/arch/x86/lib/memset_64.S
@@ -19,7 +19,7 @@
  *
  * rax   original destination
  */
-ENTRY(memset)
+SYM_FUNC_START_ALIAS(memset)
 ENTRY(__memset)
 	/*
 	 * Some CPUs support enhanced REP MOVSB/STOSB feature. It is recommended
@@ -43,8 +43,8 @@ ENTRY(__memset)
 	rep stosb
 	movq %r9,%rax
 	ret
-ENDPROC(memset)
 ENDPROC(__memset)
+SYM_FUNC_END_ALIAS(memset)
 EXPORT_SYMBOL(memset)
 EXPORT_SYMBOL(__memset)
 
diff --git a/arch/x86/xen/xen-asm_64.S b/arch/x86/xen/xen-asm_64.S
index ebf610b49c06..45c1249f370d 100644
--- a/arch/x86/xen/xen-asm_64.S
+++ b/arch/x86/xen/xen-asm_64.S
@@ -167,13 +167,13 @@ ENDPROC(xen_sysenter_target)
 
 #else /* !CONFIG_IA32_EMULATION */
 
-ENTRY(xen_syscall32_target)
+SYM_FUNC_START_ALIAS(xen_syscall32_target)
 ENTRY(xen_sysenter_target)
 	lea 16(%rsp), %rsp	/* strip %rcx, %r11 */
 	mov $-ENOSYS, %rax
 	pushq $0
 	jmp hypercall_iret
-ENDPROC(xen_syscall32_target)
 ENDPROC(xen_sysenter_target)
+SYM_FUNC_END_ALIAS(xen_syscall32_target)
 
 #endif	/* CONFIG_IA32_EMULATION */
-- 
2.23.0


^ permalink raw reply related	[flat|nested] 110+ messages in thread

* [PATCH v9 09/28] x86/asm: Annotate aliases
@ 2019-10-11 11:50   ` Jiri Slaby
  0 siblings, 0 replies; 110+ messages in thread
From: Jiri Slaby @ 2019-10-11 11:50 UTC (permalink / raw)
  To: bp
  Cc: linux-arch, Juergen Gross, Herbert Xu, Boris Ostrovsky, x86,
	linux-kernel, mingo, linux-crypto, hpa, xen-devel, tglx,
	Jiri Slaby, David S. Miller

_key_expansion_128 is an alias to _key_expansion_256a, __memcpy to
memcpy, xen_syscall32_target to xen_sysenter_target, and so on. Annotate
them all using the new SYM_FUNC_START_ALIAS, SYM_FUNC_START_LOCAL_ALIAS,
and SYM_FUNC_END_ALIAS. This will make the tools generating the
debuginfo happy as it avoid nesting and double symbols.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: <x86@kernel.org>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Reviewed-by: Juergen Gross <jgross@suse.com> [xen parts]
Cc: <linux-crypto@vger.kernel.org>
Cc: <xen-devel@lists.xenproject.org>
---
 arch/x86/crypto/aesni-intel_asm.S | 5 ++---
 arch/x86/lib/memcpy_64.S          | 4 ++--
 arch/x86/lib/memmove_64.S         | 4 ++--
 arch/x86/lib/memset_64.S          | 4 ++--
 arch/x86/xen/xen-asm_64.S         | 4 ++--
 5 files changed, 10 insertions(+), 11 deletions(-)

diff --git a/arch/x86/crypto/aesni-intel_asm.S b/arch/x86/crypto/aesni-intel_asm.S
index e0a5fb462a0a..9d8d5f2296e1 100644
--- a/arch/x86/crypto/aesni-intel_asm.S
+++ b/arch/x86/crypto/aesni-intel_asm.S
@@ -1757,8 +1757,7 @@ ENDPROC(aesni_gcm_finalize)
 #endif
 
 
-.align 4
-_key_expansion_128:
+SYM_FUNC_START_LOCAL_ALIAS(_key_expansion_128)
 SYM_FUNC_START_LOCAL(_key_expansion_256a)
 	pshufd $0b11111111, %xmm1, %xmm1
 	shufps $0b00010000, %xmm0, %xmm4
@@ -1769,8 +1768,8 @@ SYM_FUNC_START_LOCAL(_key_expansion_256a)
 	movaps %xmm0, (TKEYP)
 	add $0x10, TKEYP
 	ret
-ENDPROC(_key_expansion_128)
 SYM_FUNC_END(_key_expansion_256a)
+SYM_FUNC_END_ALIAS(_key_expansion_128)
 
 SYM_FUNC_START_LOCAL(_key_expansion_192a)
 	pshufd $0b01010101, %xmm1, %xmm1
diff --git a/arch/x86/lib/memcpy_64.S b/arch/x86/lib/memcpy_64.S
index 92748660ba51..57a64266ba69 100644
--- a/arch/x86/lib/memcpy_64.S
+++ b/arch/x86/lib/memcpy_64.S
@@ -28,7 +28,7 @@
  * Output:
  * rax original destination
  */
-ENTRY(__memcpy)
+SYM_FUNC_START_ALIAS(__memcpy)
 ENTRY(memcpy)
 	ALTERNATIVE_2 "jmp memcpy_orig", "", X86_FEATURE_REP_GOOD, \
 		      "jmp memcpy_erms", X86_FEATURE_ERMS
@@ -42,7 +42,7 @@ ENTRY(memcpy)
 	rep movsb
 	ret
 ENDPROC(memcpy)
-ENDPROC(__memcpy)
+SYM_FUNC_END_ALIAS(__memcpy)
 EXPORT_SYMBOL(memcpy)
 EXPORT_SYMBOL(__memcpy)
 
diff --git a/arch/x86/lib/memmove_64.S b/arch/x86/lib/memmove_64.S
index bbec69d8223b..50c1648311b3 100644
--- a/arch/x86/lib/memmove_64.S
+++ b/arch/x86/lib/memmove_64.S
@@ -26,7 +26,7 @@
  */
 .weak memmove
 
-ENTRY(memmove)
+SYM_FUNC_START_ALIAS(memmove)
 ENTRY(__memmove)
 
 	/* Handle more 32 bytes in loop */
@@ -208,6 +208,6 @@ ENTRY(__memmove)
 13:
 	retq
 ENDPROC(__memmove)
-ENDPROC(memmove)
+SYM_FUNC_END_ALIAS(memmove)
 EXPORT_SYMBOL(__memmove)
 EXPORT_SYMBOL(memmove)
diff --git a/arch/x86/lib/memset_64.S b/arch/x86/lib/memset_64.S
index 9bc861c71e75..927ac44d34aa 100644
--- a/arch/x86/lib/memset_64.S
+++ b/arch/x86/lib/memset_64.S
@@ -19,7 +19,7 @@
  *
  * rax   original destination
  */
-ENTRY(memset)
+SYM_FUNC_START_ALIAS(memset)
 ENTRY(__memset)
 	/*
 	 * Some CPUs support enhanced REP MOVSB/STOSB feature. It is recommended
@@ -43,8 +43,8 @@ ENTRY(__memset)
 	rep stosb
 	movq %r9,%rax
 	ret
-ENDPROC(memset)
 ENDPROC(__memset)
+SYM_FUNC_END_ALIAS(memset)
 EXPORT_SYMBOL(memset)
 EXPORT_SYMBOL(__memset)
 
diff --git a/arch/x86/xen/xen-asm_64.S b/arch/x86/xen/xen-asm_64.S
index ebf610b49c06..45c1249f370d 100644
--- a/arch/x86/xen/xen-asm_64.S
+++ b/arch/x86/xen/xen-asm_64.S
@@ -167,13 +167,13 @@ ENDPROC(xen_sysenter_target)
 
 #else /* !CONFIG_IA32_EMULATION */
 
-ENTRY(xen_syscall32_target)
+SYM_FUNC_START_ALIAS(xen_syscall32_target)
 ENTRY(xen_sysenter_target)
 	lea 16(%rsp), %rsp	/* strip %rcx, %r11 */
 	mov $-ENOSYS, %rax
 	pushq $0
 	jmp hypercall_iret
-ENDPROC(xen_syscall32_target)
 ENDPROC(xen_sysenter_target)
+SYM_FUNC_END_ALIAS(xen_syscall32_target)
 
 #endif	/* CONFIG_IA32_EMULATION */
-- 
2.23.0


_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xenproject.org
https://lists.xenproject.org/mailman/listinfo/xen-devel

^ permalink raw reply related	[flat|nested] 110+ messages in thread

* [Xen-devel] [PATCH v9 09/28] x86/asm: Annotate aliases
@ 2019-10-11 11:50   ` Jiri Slaby
  0 siblings, 0 replies; 110+ messages in thread
From: Jiri Slaby @ 2019-10-11 11:50 UTC (permalink / raw)
  To: bp
  Cc: linux-arch, Juergen Gross, Herbert Xu, Boris Ostrovsky, x86,
	linux-kernel, mingo, linux-crypto, hpa, xen-devel, tglx,
	Jiri Slaby, David S. Miller

_key_expansion_128 is an alias to _key_expansion_256a, __memcpy to
memcpy, xen_syscall32_target to xen_sysenter_target, and so on. Annotate
them all using the new SYM_FUNC_START_ALIAS, SYM_FUNC_START_LOCAL_ALIAS,
and SYM_FUNC_END_ALIAS. This will make the tools generating the
debuginfo happy as it avoid nesting and double symbols.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: <x86@kernel.org>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Reviewed-by: Juergen Gross <jgross@suse.com> [xen parts]
Cc: <linux-crypto@vger.kernel.org>
Cc: <xen-devel@lists.xenproject.org>
---
 arch/x86/crypto/aesni-intel_asm.S | 5 ++---
 arch/x86/lib/memcpy_64.S          | 4 ++--
 arch/x86/lib/memmove_64.S         | 4 ++--
 arch/x86/lib/memset_64.S          | 4 ++--
 arch/x86/xen/xen-asm_64.S         | 4 ++--
 5 files changed, 10 insertions(+), 11 deletions(-)

diff --git a/arch/x86/crypto/aesni-intel_asm.S b/arch/x86/crypto/aesni-intel_asm.S
index e0a5fb462a0a..9d8d5f2296e1 100644
--- a/arch/x86/crypto/aesni-intel_asm.S
+++ b/arch/x86/crypto/aesni-intel_asm.S
@@ -1757,8 +1757,7 @@ ENDPROC(aesni_gcm_finalize)
 #endif
 
 
-.align 4
-_key_expansion_128:
+SYM_FUNC_START_LOCAL_ALIAS(_key_expansion_128)
 SYM_FUNC_START_LOCAL(_key_expansion_256a)
 	pshufd $0b11111111, %xmm1, %xmm1
 	shufps $0b00010000, %xmm0, %xmm4
@@ -1769,8 +1768,8 @@ SYM_FUNC_START_LOCAL(_key_expansion_256a)
 	movaps %xmm0, (TKEYP)
 	add $0x10, TKEYP
 	ret
-ENDPROC(_key_expansion_128)
 SYM_FUNC_END(_key_expansion_256a)
+SYM_FUNC_END_ALIAS(_key_expansion_128)
 
 SYM_FUNC_START_LOCAL(_key_expansion_192a)
 	pshufd $0b01010101, %xmm1, %xmm1
diff --git a/arch/x86/lib/memcpy_64.S b/arch/x86/lib/memcpy_64.S
index 92748660ba51..57a64266ba69 100644
--- a/arch/x86/lib/memcpy_64.S
+++ b/arch/x86/lib/memcpy_64.S
@@ -28,7 +28,7 @@
  * Output:
  * rax original destination
  */
-ENTRY(__memcpy)
+SYM_FUNC_START_ALIAS(__memcpy)
 ENTRY(memcpy)
 	ALTERNATIVE_2 "jmp memcpy_orig", "", X86_FEATURE_REP_GOOD, \
 		      "jmp memcpy_erms", X86_FEATURE_ERMS
@@ -42,7 +42,7 @@ ENTRY(memcpy)
 	rep movsb
 	ret
 ENDPROC(memcpy)
-ENDPROC(__memcpy)
+SYM_FUNC_END_ALIAS(__memcpy)
 EXPORT_SYMBOL(memcpy)
 EXPORT_SYMBOL(__memcpy)
 
diff --git a/arch/x86/lib/memmove_64.S b/arch/x86/lib/memmove_64.S
index bbec69d8223b..50c1648311b3 100644
--- a/arch/x86/lib/memmove_64.S
+++ b/arch/x86/lib/memmove_64.S
@@ -26,7 +26,7 @@
  */
 .weak memmove
 
-ENTRY(memmove)
+SYM_FUNC_START_ALIAS(memmove)
 ENTRY(__memmove)
 
 	/* Handle more 32 bytes in loop */
@@ -208,6 +208,6 @@ ENTRY(__memmove)
 13:
 	retq
 ENDPROC(__memmove)
-ENDPROC(memmove)
+SYM_FUNC_END_ALIAS(memmove)
 EXPORT_SYMBOL(__memmove)
 EXPORT_SYMBOL(memmove)
diff --git a/arch/x86/lib/memset_64.S b/arch/x86/lib/memset_64.S
index 9bc861c71e75..927ac44d34aa 100644
--- a/arch/x86/lib/memset_64.S
+++ b/arch/x86/lib/memset_64.S
@@ -19,7 +19,7 @@
  *
  * rax   original destination
  */
-ENTRY(memset)
+SYM_FUNC_START_ALIAS(memset)
 ENTRY(__memset)
 	/*
 	 * Some CPUs support enhanced REP MOVSB/STOSB feature. It is recommended
@@ -43,8 +43,8 @@ ENTRY(__memset)
 	rep stosb
 	movq %r9,%rax
 	ret
-ENDPROC(memset)
 ENDPROC(__memset)
+SYM_FUNC_END_ALIAS(memset)
 EXPORT_SYMBOL(memset)
 EXPORT_SYMBOL(__memset)
 
diff --git a/arch/x86/xen/xen-asm_64.S b/arch/x86/xen/xen-asm_64.S
index ebf610b49c06..45c1249f370d 100644
--- a/arch/x86/xen/xen-asm_64.S
+++ b/arch/x86/xen/xen-asm_64.S
@@ -167,13 +167,13 @@ ENDPROC(xen_sysenter_target)
 
 #else /* !CONFIG_IA32_EMULATION */
 
-ENTRY(xen_syscall32_target)
+SYM_FUNC_START_ALIAS(xen_syscall32_target)
 ENTRY(xen_sysenter_target)
 	lea 16(%rsp), %rsp	/* strip %rcx, %r11 */
 	mov $-ENOSYS, %rax
 	pushq $0
 	jmp hypercall_iret
-ENDPROC(xen_syscall32_target)
 ENDPROC(xen_sysenter_target)
+SYM_FUNC_END_ALIAS(xen_syscall32_target)
 
 #endif	/* CONFIG_IA32_EMULATION */
-- 
2.23.0


_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xenproject.org
https://lists.xenproject.org/mailman/listinfo/xen-devel

^ permalink raw reply related	[flat|nested] 110+ messages in thread

* [PATCH v9 10/28] x86/asm/entry: Annotate interrupt symbols properly
  2019-10-11 11:50 [PATCH v9 00/28] New macros for assembler symbols Jiri Slaby
                   ` (8 preceding siblings ...)
  2019-10-11 11:50   ` Jiri Slaby
@ 2019-10-11 11:50 ` Jiri Slaby
  2019-10-18 16:30   ` [tip: x86/asm] " tip-bot2 for Jiri Slaby
  2019-10-11 11:50 ` [PATCH v9 11/28] x86/asm/head: Annotate data appropriately Jiri Slaby
                   ` (17 subsequent siblings)
  27 siblings, 1 reply; 110+ messages in thread
From: Jiri Slaby @ 2019-10-11 11:50 UTC (permalink / raw)
  To: bp; +Cc: tglx, mingo, hpa, x86, linux-arch, linux-kernel, Jiri Slaby

* annotate functions properly by SYM_CODE_START, SYM_CODE_START_LOCAL*
  and SYM_CODE_END -- these are not C-like functions, so they have to
  be annotated using CODE.
* use SYM_INNER_LABEL* for labels being in the middle of other functions
  This prevents nested labels annotations.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: <x86@kernel.org>
---

Notes:
    [v4] alignments preserved

 arch/x86/entry/entry_32.S | 28 ++++++++++++++--------------
 arch/x86/entry/entry_64.S | 13 ++++++-------
 2 files changed, 20 insertions(+), 21 deletions(-)

diff --git a/arch/x86/entry/entry_32.S b/arch/x86/entry/entry_32.S
index f83ca5aa8b77..f37ff583cecb 100644
--- a/arch/x86/entry/entry_32.S
+++ b/arch/x86/entry/entry_32.S
@@ -807,8 +807,7 @@ END(ret_from_fork)
  */
 
 	# userspace resumption stub bypassing syscall exit tracing
-	ALIGN
-ret_from_exception:
+SYM_CODE_START_LOCAL(ret_from_exception)
 	preempt_stop(CLBR_ANY)
 ret_from_intr:
 #ifdef CONFIG_VM86
@@ -825,13 +824,13 @@ ret_from_intr:
 	cmpl	$USER_RPL, %eax
 	jb	restore_all_kernel		# not returning to v8086 or userspace
 
-ENTRY(resume_userspace)
+SYM_INNER_LABEL_ALIGN(resume_userspace, SYM_L_LOCAL)
 	DISABLE_INTERRUPTS(CLBR_ANY)
 	TRACE_IRQS_OFF
 	movl	%esp, %eax
 	call	prepare_exit_to_usermode
 	jmp	restore_all
-END(ret_from_exception)
+SYM_CODE_END(ret_from_exception)
 
 GLOBAL(__begin_SYSENTER_singlestep_region)
 /*
@@ -1100,7 +1099,7 @@ restore_all_kernel:
 	jmp	.Lirq_return
 
 .section .fixup, "ax"
-ENTRY(iret_exc	)
+SYM_CODE_START(iret_exc)
 	pushl	$0				# no error code
 	pushl	$do_iret_error
 
@@ -1117,6 +1116,7 @@ ENTRY(iret_exc	)
 #endif
 
 	jmp	common_exception
+SYM_CODE_END(iret_exc)
 .previous
 	_ASM_EXTABLE(.Lirq_return, iret_exc)
 ENDPROC(entry_INT80_32)
@@ -1182,7 +1182,7 @@ ENTRY(spurious_entries_start)
     .endr
 END(spurious_entries_start)
 
-common_spurious:
+SYM_CODE_START_LOCAL(common_spurious)
 	ASM_CLAC
 	addl	$-0x80, (%esp)			/* Adjust vector into the [-256, -1] range */
 	SAVE_ALL switch_stacks=1
@@ -1191,7 +1191,7 @@ common_spurious:
 	movl	%esp, %eax
 	call	smp_spurious_interrupt
 	jmp	ret_from_intr
-ENDPROC(common_spurious)
+SYM_CODE_END(common_spurious)
 #endif
 
 /*
@@ -1199,7 +1199,7 @@ ENDPROC(common_spurious)
  * so IRQ-flags tracing has to follow that:
  */
 	.p2align CONFIG_X86_L1_CACHE_SHIFT
-common_interrupt:
+SYM_CODE_START_LOCAL(common_interrupt)
 	ASM_CLAC
 	addl	$-0x80, (%esp)			/* Adjust vector into the [-256, -1] range */
 
@@ -1209,7 +1209,7 @@ common_interrupt:
 	movl	%esp, %eax
 	call	do_IRQ
 	jmp	ret_from_intr
-ENDPROC(common_interrupt)
+SYM_CODE_END(common_interrupt)
 
 #define BUILD_INTERRUPT3(name, nr, fn)			\
 ENTRY(name)						\
@@ -1361,7 +1361,7 @@ ENTRY(xen_hypervisor_callback)
 
 	jmp	xen_iret_crit_fixup
 
-ENTRY(xen_do_upcall)
+SYM_INNER_LABEL_ALIGN(xen_do_upcall, SYM_L_GLOBAL)
 1:	mov	%esp, %eax
 	call	xen_evtchn_do_upcall
 #ifndef CONFIG_PREEMPTION
@@ -1447,7 +1447,7 @@ ENTRY(page_fault)
 	jmp	common_exception_read_cr2
 END(page_fault)
 
-common_exception_read_cr2:
+SYM_CODE_START_LOCAL_NOALIGN(common_exception_read_cr2)
 	/* the function address is in %gs's slot on the stack */
 	SAVE_ALL switch_stacks=1 skip_gs=1
 
@@ -1470,9 +1470,9 @@ common_exception_read_cr2:
 	movl	%esp, %eax			# pt_regs pointer
 	CALL_NOSPEC %edi
 	jmp	ret_from_exception
-END(common_exception_read_cr2)
+SYM_CODE_END(common_exception_read_cr2)
 
-common_exception:
+SYM_CODE_START_LOCAL_NOALIGN(common_exception)
 	/* the function address is in %gs's slot on the stack */
 	SAVE_ALL switch_stacks=1 skip_gs=1
 	ENCODE_FRAME_POINTER
@@ -1492,7 +1492,7 @@ common_exception:
 	movl	%esp, %eax			# pt_regs pointer
 	CALL_NOSPEC %edi
 	jmp	ret_from_exception
-END(common_exception)
+SYM_CODE_END(common_exception)
 
 ENTRY(debug)
 	/*
diff --git a/arch/x86/entry/entry_64.S b/arch/x86/entry/entry_64.S
index db43526cecfa..607e25f54ff4 100644
--- a/arch/x86/entry/entry_64.S
+++ b/arch/x86/entry/entry_64.S
@@ -589,18 +589,18 @@ _ASM_NOKPROBE(interrupt_entry)
  * The interrupt stubs push (~vector+0x80) onto the stack and
  * then jump to common_spurious/interrupt.
  */
-common_spurious:
+SYM_CODE_START_LOCAL(common_spurious)
 	addq	$-0x80, (%rsp)			/* Adjust vector to [-256, -1] range */
 	call	interrupt_entry
 	UNWIND_HINT_REGS indirect=1
 	call	smp_spurious_interrupt		/* rdi points to pt_regs */
 	jmp	ret_from_intr
-END(common_spurious)
+SYM_CODE_END(common_spurious)
 _ASM_NOKPROBE(common_spurious)
 
 /* common_interrupt is a hotpath. Align it */
 	.p2align CONFIG_X86_L1_CACHE_SHIFT
-common_interrupt:
+SYM_CODE_START_LOCAL(common_interrupt)
 	addq	$-0x80, (%rsp)			/* Adjust vector to [-256, -1] range */
 	call	interrupt_entry
 	UNWIND_HINT_REGS indirect=1
@@ -695,7 +695,7 @@ GLOBAL(restore_regs_and_return_to_kernel)
 	 */
 	INTERRUPT_RETURN
 
-ENTRY(native_iret)
+SYM_INNER_LABEL_ALIGN(native_iret, SYM_L_GLOBAL)
 	UNWIND_HINT_IRET_REGS
 	/*
 	 * Are we returning to a stack segment from the LDT?  Note: in
@@ -706,8 +706,7 @@ ENTRY(native_iret)
 	jnz	native_irq_return_ldt
 #endif
 
-.global native_irq_return_iret
-native_irq_return_iret:
+SYM_INNER_LABEL(native_irq_return_iret, SYM_L_GLOBAL)
 	/*
 	 * This may fault.  Non-paranoid faults on return to userspace are
 	 * handled by fixup_bad_iret.  These include #SS, #GP, and #NP.
@@ -789,7 +788,7 @@ native_irq_return_ldt:
 	 */
 	jmp	native_irq_return_iret
 #endif
-END(common_interrupt)
+SYM_CODE_END(common_interrupt)
 _ASM_NOKPROBE(common_interrupt)
 
 /*
-- 
2.23.0


^ permalink raw reply related	[flat|nested] 110+ messages in thread

* [PATCH v9 11/28] x86/asm/head: Annotate data appropriately
  2019-10-11 11:50 [PATCH v9 00/28] New macros for assembler symbols Jiri Slaby
                   ` (9 preceding siblings ...)
  2019-10-11 11:50 ` [PATCH v9 10/28] x86/asm/entry: Annotate interrupt symbols properly Jiri Slaby
@ 2019-10-11 11:50 ` Jiri Slaby
  2019-10-18 16:30   ` [tip: x86/asm] " tip-bot2 for Jiri Slaby
  2019-10-11 11:50 ` [PATCH v9 12/28] x86/boot: " Jiri Slaby
                   ` (16 subsequent siblings)
  27 siblings, 1 reply; 110+ messages in thread
From: Jiri Slaby @ 2019-10-11 11:50 UTC (permalink / raw)
  To: bp; +Cc: tglx, mingo, hpa, x86, linux-arch, linux-kernel, Jiri Slaby

Use the new SYM_DATA, SYM_DATA_START, and SYM_DATA_END in both 32 and 64
bit head_*.S. In the 64-bit version, define also
SYM_DATA_START_PAGE_ALIGNED locally using the new SYM_START. It is used
in the code instead of NEXT_PAGE() which was defined in this file and
had been using the obsolete macro GLOBAL().

Now, the data in the 64-bit object file look sane:
Value   Size Type    Bind   Vis      Ndx Name
  0000  4096 OBJECT  GLOBAL DEFAULT   15 init_level4_pgt
  1000  4096 OBJECT  GLOBAL DEFAULT   15 level3_kernel_pgt
  2000  2048 OBJECT  GLOBAL DEFAULT   15 level2_kernel_pgt
  3000  4096 OBJECT  GLOBAL DEFAULT   15 level2_fixmap_pgt
  4000  4096 OBJECT  GLOBAL DEFAULT   15 level1_fixmap_pgt
  5000     2 OBJECT  GLOBAL DEFAULT   15 early_gdt_descr
  5002     8 OBJECT  LOCAL  DEFAULT   15 early_gdt_descr_base
  500a     8 OBJECT  GLOBAL DEFAULT   15 phys_base
  0000     8 OBJECT  GLOBAL DEFAULT   17 initial_code
  0008     8 OBJECT  GLOBAL DEFAULT   17 initial_gs
  0010     8 OBJECT  GLOBAL DEFAULT   17 initial_stack
  0000     4 OBJECT  GLOBAL DEFAULT   19 early_recursion_flag
  1000  4096 OBJECT  GLOBAL DEFAULT   19 early_level4_pgt
  2000 0x40000 OBJECT  GLOBAL DEFAULT   19 early_dynamic_pgts
  0000  4096 OBJECT  GLOBAL DEFAULT   22 empty_zero_page

All have correct size and type now.

Note that the patch removes implicit 16B alignment previously inserted
by ENTRY:
* initial_code, setup_once_ref, initial_page_table, initial_stack,
  boot_gdt are still aligned
* early_gdt_descr is now properly aligned as was intended before ENTRY
  was added there long time ago
* phys_base's alignment is kept by an explicitly added new alignment

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: x86@kernel.org
---

Notes:
    [v9] preserve phys_base's alignment

 arch/x86/kernel/head_32.S | 35 ++++++++--------
 arch/x86/kernel/head_64.S | 87 +++++++++++++++++++++------------------
 2 files changed, 65 insertions(+), 57 deletions(-)

diff --git a/arch/x86/kernel/head_32.S b/arch/x86/kernel/head_32.S
index aec1fdb80221..e2b3e6cf86ca 100644
--- a/arch/x86/kernel/head_32.S
+++ b/arch/x86/kernel/head_32.S
@@ -502,15 +502,12 @@ ENDPROC(early_ignore_irq)
 
 __INITDATA
 	.align 4
-GLOBAL(early_recursion_flag)
-	.long 0
+SYM_DATA(early_recursion_flag, .long 0)
 
 __REFDATA
 	.align 4
-ENTRY(initial_code)
-	.long i386_start_kernel
-ENTRY(setup_once_ref)
-	.long setup_once
+SYM_DATA(initial_code,		.long i386_start_kernel)
+SYM_DATA(setup_once_ref,	.long setup_once)
 
 #ifdef CONFIG_PAGE_TABLE_ISOLATION
 #define	PGD_ALIGN	(2 * PAGE_SIZE)
@@ -553,7 +550,7 @@ EXPORT_SYMBOL(empty_zero_page)
 __PAGE_ALIGNED_DATA
 	/* Page-aligned for the benefit of paravirt? */
 	.align PGD_ALIGN
-ENTRY(initial_page_table)
+SYM_DATA_START(initial_page_table)
 	.long	pa(initial_pg_pmd+PGD_IDENT_ATTR),0	/* low identity map */
 # if KPMDS == 3
 	.long	pa(initial_pg_pmd+PGD_IDENT_ATTR),0
@@ -571,17 +568,18 @@ ENTRY(initial_page_table)
 #  error "Kernel PMDs should be 1, 2 or 3"
 # endif
 	.align PAGE_SIZE		/* needs to be page-sized too */
+SYM_DATA_END(initial_page_table)
 #endif
 
 .data
 .balign 4
-ENTRY(initial_stack)
-	/*
-	 * The SIZEOF_PTREGS gap is a convention which helps the in-kernel
-	 * unwinder reliably detect the end of the stack.
-	 */
-	.long init_thread_union + THREAD_SIZE - SIZEOF_PTREGS - \
-	      TOP_OF_KERNEL_STACK_PADDING;
+/*
+ * The SIZEOF_PTREGS gap is a convention which helps the in-kernel unwinder
+ * reliably detect the end of the stack.
+ */
+SYM_DATA(initial_stack,
+		.long init_thread_union + THREAD_SIZE -
+		SIZEOF_PTREGS - TOP_OF_KERNEL_STACK_PADDING)
 
 __INITRODATA
 int_msg:
@@ -600,22 +598,25 @@ int_msg:
 	ALIGN
 # early boot GDT descriptor (must use 1:1 address mapping)
 	.word 0				# 32 bit align gdt_desc.address
-boot_gdt_descr:
+SYM_DATA_START_LOCAL(boot_gdt_descr)
 	.word __BOOT_DS+7
 	.long boot_gdt - __PAGE_OFFSET
+SYM_DATA_END(boot_gdt_descr)
 
 # boot GDT descriptor (later on used by CPU#0):
 	.word 0				# 32 bit align gdt_desc.address
-ENTRY(early_gdt_descr)
+SYM_DATA_START(early_gdt_descr)
 	.word GDT_ENTRIES*8-1
 	.long gdt_page			/* Overwritten for secondary CPUs */
+SYM_DATA_END(early_gdt_descr)
 
 /*
  * The boot_gdt must mirror the equivalent in setup.S and is
  * used only for booting.
  */
 	.align L1_CACHE_BYTES
-ENTRY(boot_gdt)
+SYM_DATA_START(boot_gdt)
 	.fill GDT_ENTRY_BOOT_CS,8,0
 	.quad 0x00cf9a000000ffff	/* kernel 4GB code at 0x00000000 */
 	.quad 0x00cf92000000ffff	/* kernel 4GB data at 0x00000000 */
+SYM_DATA_END(boot_gdt)
diff --git a/arch/x86/kernel/head_64.S b/arch/x86/kernel/head_64.S
index 5b42552d929f..8b0926ac4ac6 100644
--- a/arch/x86/kernel/head_64.S
+++ b/arch/x86/kernel/head_64.S
@@ -260,16 +260,14 @@ END(start_cpu0)
 	/* Both SMP bootup and ACPI suspend change these variables */
 	__REFDATA
 	.balign	8
-	GLOBAL(initial_code)
-	.quad	x86_64_start_kernel
-	GLOBAL(initial_gs)
-	.quad	INIT_PER_CPU_VAR(fixed_percpu_data)
-	GLOBAL(initial_stack)
-	/*
-	 * The SIZEOF_PTREGS gap is a convention which helps the in-kernel
-	 * unwinder reliably detect the end of the stack.
-	 */
-	.quad  init_thread_union + THREAD_SIZE - SIZEOF_PTREGS
+SYM_DATA(initial_code,	.quad x86_64_start_kernel)
+SYM_DATA(initial_gs,	.quad INIT_PER_CPU_VAR(fixed_percpu_data))
+
+/*
+ * The SIZEOF_PTREGS gap is a convention which helps the in-kernel unwinder
+ * reliably detect the end of the stack.
+ */
+SYM_DATA(initial_stack, .quad init_thread_union + THREAD_SIZE - SIZEOF_PTREGS)
 	__FINITDATA
 
 	__INIT
@@ -335,9 +333,9 @@ SYM_CODE_START_LOCAL(early_idt_handler_common)
 	jmp restore_regs_and_return_to_kernel
 SYM_CODE_END(early_idt_handler_common)
 
-#define NEXT_PAGE(name) \
-	.balign	PAGE_SIZE; \
-GLOBAL(name)
+
+#define SYM_DATA_START_PAGE_ALIGNED(name)			\
+	SYM_START(name, SYM_L_GLOBAL, .balign PAGE_SIZE)
 
 #ifdef CONFIG_PAGE_TABLE_ISOLATION
 /*
@@ -352,11 +350,11 @@ GLOBAL(name)
  */
 #define PTI_USER_PGD_FILL	512
 /* This ensures they are 8k-aligned: */
-#define NEXT_PGD_PAGE(name) \
-	.balign 2 * PAGE_SIZE; \
-GLOBAL(name)
+#define SYM_DATA_START_PTI_ALIGNED(name) \
+	SYM_START(name, SYM_L_GLOBAL, .balign 2 * PAGE_SIZE)
 #else
-#define NEXT_PGD_PAGE(name) NEXT_PAGE(name)
+#define SYM_DATA_START_PTI_ALIGNED(name) \
+	SYM_DATA_START_PAGE_ALIGNED(name)
 #define PTI_USER_PGD_FILL	0
 #endif
 
@@ -371,20 +369,21 @@ GLOBAL(name)
 	__INITDATA
 	.balign 4
 
-NEXT_PGD_PAGE(early_top_pgt)
+SYM_DATA_START_PTI_ALIGNED(early_top_pgt)
 	.fill	512,8,0
 	.fill	PTI_USER_PGD_FILL,8,0
+SYM_DATA_END(early_top_pgt)
 
-NEXT_PAGE(early_dynamic_pgts)
+SYM_DATA_START_PAGE_ALIGNED(early_dynamic_pgts)
 	.fill	512*EARLY_DYNAMIC_PAGE_TABLES,8,0
+SYM_DATA_END(early_dynamic_pgts)
 
-GLOBAL(early_recursion_flag)
-	.long 0
+SYM_DATA(early_recursion_flag, .long 0)
 
 	.data
 
 #if defined(CONFIG_XEN_PV) || defined(CONFIG_PVH)
-NEXT_PGD_PAGE(init_top_pgt)
+SYM_DATA_START_PTI_ALIGNED(init_top_pgt)
 	.quad   level3_ident_pgt - __START_KERNEL_map + _KERNPG_TABLE_NOENC
 	.org    init_top_pgt + L4_PAGE_OFFSET*8, 0
 	.quad   level3_ident_pgt - __START_KERNEL_map + _KERNPG_TABLE_NOENC
@@ -392,11 +391,13 @@ NEXT_PGD_PAGE(init_top_pgt)
 	/* (2^48-(2*1024*1024*1024))/(2^39) = 511 */
 	.quad   level3_kernel_pgt - __START_KERNEL_map + _PAGE_TABLE_NOENC
 	.fill	PTI_USER_PGD_FILL,8,0
+SYM_DATA_END(init_top_pgt)
 
-NEXT_PAGE(level3_ident_pgt)
+SYM_DATA_START_PAGE_ALIGNED(level3_ident_pgt)
 	.quad	level2_ident_pgt - __START_KERNEL_map + _KERNPG_TABLE_NOENC
 	.fill	511, 8, 0
-NEXT_PAGE(level2_ident_pgt)
+SYM_DATA_END(level3_ident_pgt)
+SYM_DATA_START_PAGE_ALIGNED(level2_ident_pgt)
 	/*
 	 * Since I easily can, map the first 1G.
 	 * Don't set NX because code runs from these pages.
@@ -406,25 +407,29 @@ NEXT_PAGE(level2_ident_pgt)
 	 * the CPU should ignore the bit.
 	 */
 	PMDS(0, __PAGE_KERNEL_IDENT_LARGE_EXEC, PTRS_PER_PMD)
+SYM_DATA_END(level2_ident_pgt)
 #else
-NEXT_PGD_PAGE(init_top_pgt)
+SYM_DATA_START_PTI_ALIGNED(init_top_pgt)
 	.fill	512,8,0
 	.fill	PTI_USER_PGD_FILL,8,0
+SYM_DATA_END(init_top_pgt)
 #endif
 
 #ifdef CONFIG_X86_5LEVEL
-NEXT_PAGE(level4_kernel_pgt)
+SYM_DATA_START_PAGE_ALIGNED(level4_kernel_pgt)
 	.fill	511,8,0
 	.quad	level3_kernel_pgt - __START_KERNEL_map + _PAGE_TABLE_NOENC
+SYM_DATA_END(level4_kernel_pgt)
 #endif
 
-NEXT_PAGE(level3_kernel_pgt)
+SYM_DATA_START_PAGE_ALIGNED(level3_kernel_pgt)
 	.fill	L3_START_KERNEL,8,0
 	/* (2^48-(2*1024*1024*1024)-((2^39)*511))/(2^30) = 510 */
 	.quad	level2_kernel_pgt - __START_KERNEL_map + _KERNPG_TABLE_NOENC
 	.quad	level2_fixmap_pgt - __START_KERNEL_map + _PAGE_TABLE_NOENC
+SYM_DATA_END(level3_kernel_pgt)
 
-NEXT_PAGE(level2_kernel_pgt)
+SYM_DATA_START_PAGE_ALIGNED(level2_kernel_pgt)
 	/*
 	 * 512 MB kernel mapping. We spend a full page on this pagetable
 	 * anyway.
@@ -441,8 +446,9 @@ NEXT_PAGE(level2_kernel_pgt)
 	 */
 	PMDS(0, __PAGE_KERNEL_LARGE_EXEC,
 		KERNEL_IMAGE_SIZE/PMD_SIZE)
+SYM_DATA_END(level2_kernel_pgt)
 
-NEXT_PAGE(level2_fixmap_pgt)
+SYM_DATA_START_PAGE_ALIGNED(level2_fixmap_pgt)
 	.fill	(512 - 4 - FIXMAP_PMD_NUM),8,0
 	pgtno = 0
 	.rept (FIXMAP_PMD_NUM)
@@ -452,31 +458,32 @@ NEXT_PAGE(level2_fixmap_pgt)
 	.endr
 	/* 6 MB reserved space + a 2MB hole */
 	.fill	4,8,0
+SYM_DATA_END(level2_fixmap_pgt)
 
-NEXT_PAGE(level1_fixmap_pgt)
+SYM_DATA_START_PAGE_ALIGNED(level1_fixmap_pgt)
 	.rept (FIXMAP_PMD_NUM)
 	.fill	512,8,0
 	.endr
+SYM_DATA_END(level1_fixmap_pgt)
 
 #undef PMDS
 
 	.data
 	.align 16
-	.globl early_gdt_descr
-early_gdt_descr:
-	.word	GDT_ENTRIES*8-1
-early_gdt_descr_base:
-	.quad	INIT_PER_CPU_VAR(gdt_page)
-
-ENTRY(phys_base)
-	/* This must match the first entry in level2_kernel_pgt */
-	.quad   0x0000000000000000
+
+SYM_DATA(early_gdt_descr,		.word GDT_ENTRIES*8-1)
+SYM_DATA_LOCAL(early_gdt_descr_base,	.quad INIT_PER_CPU_VAR(gdt_page))
+
+	.align 16
+/* This must match the first entry in level2_kernel_pgt */
+SYM_DATA(phys_base, .quad 0x0)
 EXPORT_SYMBOL(phys_base)
 
 #include "../../x86/xen/xen-head.S"
 
 	__PAGE_ALIGNED_BSS
-NEXT_PAGE(empty_zero_page)
+SYM_DATA_START_PAGE_ALIGNED(empty_zero_page)
 	.skip PAGE_SIZE
+SYM_DATA_END(empty_zero_page)
 EXPORT_SYMBOL(empty_zero_page)
 
-- 
2.23.0


^ permalink raw reply related	[flat|nested] 110+ messages in thread

* [PATCH v9 12/28] x86/boot: Annotate data appropriately
  2019-10-11 11:50 [PATCH v9 00/28] New macros for assembler symbols Jiri Slaby
                   ` (10 preceding siblings ...)
  2019-10-11 11:50 ` [PATCH v9 11/28] x86/asm/head: Annotate data appropriately Jiri Slaby
@ 2019-10-11 11:50 ` Jiri Slaby
  2019-10-18 16:30   ` [tip: x86/asm] " tip-bot2 for Jiri Slaby
  2019-10-11 11:50 ` [PATCH v9 13/28] um: " Jiri Slaby
                   ` (15 subsequent siblings)
  27 siblings, 1 reply; 110+ messages in thread
From: Jiri Slaby @ 2019-10-11 11:50 UTC (permalink / raw)
  To: bp; +Cc: tglx, mingo, hpa, x86, linux-arch, linux-kernel, Jiri Slaby

Use the new SYM_DATA, SYM_DATA_START, and SYM_DATA_END* macros for data,
so that the data in the object file look sane:
Value   Size Type    Bind   Vis      Ndx Name
  0000    10 OBJECT  GLOBAL DEFAULT    3 efi32_boot_gdt
  000a    10 OBJECT  LOCAL  DEFAULT    3 save_gdt
  0014     8 OBJECT  LOCAL  DEFAULT    3 func_rt_ptr
  001c    48 OBJECT  GLOBAL DEFAULT    3 efi_gdt64
  004c     0 OBJECT  LOCAL  DEFAULT    3 efi_gdt64_end

  0000    48 OBJECT  LOCAL  DEFAULT    3 gdt
  0030     0 OBJECT  LOCAL  DEFAULT    3 gdt_end
  0030     8 OBJECT  LOCAL  DEFAULT    3 efi_config
  0038    49 OBJECT  GLOBAL DEFAULT    3 efi32_config
  0069    49 OBJECT  GLOBAL DEFAULT    3 efi64_config

All have correct size and type now.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Borislav Petkov <bp@alien8.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: x86@kernel.org
---

Notes:
    [v9] .Lwakeup_idt handled in this patch too

 arch/x86/boot/compressed/efi_thunk_64.S | 21 +++++++++-------
 arch/x86/boot/compressed/head_64.S      | 32 ++++++++++++-------------
 arch/x86/boot/compressed/mem_encrypt.S  |  3 +--
 arch/x86/realmode/rm/wakeup_asm.S       |  4 ++--
 4 files changed, 30 insertions(+), 30 deletions(-)

diff --git a/arch/x86/boot/compressed/efi_thunk_64.S b/arch/x86/boot/compressed/efi_thunk_64.S
index bff9ab7c6317..d66000d23921 100644
--- a/arch/x86/boot/compressed/efi_thunk_64.S
+++ b/arch/x86/boot/compressed/efi_thunk_64.S
@@ -176,16 +176,19 @@ ENDPROC(efi_enter32)
 
 	.data
 	.balign	8
-	.global	efi32_boot_gdt
-efi32_boot_gdt:	.word	0
-		.quad	0
+SYM_DATA_START(efi32_boot_gdt)
+	.word	0
+	.quad	0
+SYM_DATA_END(efi32_boot_gdt)
+
+SYM_DATA_START_LOCAL(save_gdt)
+	.word	0
+	.quad	0
+SYM_DATA_END(save_gdt)
 
-save_gdt:	.word	0
-		.quad	0
-func_rt_ptr:	.quad	0
+SYM_DATA_LOCAL(func_rt_ptr, .quad 0)
 
-	.global efi_gdt64
-efi_gdt64:
+SYM_DATA_START(efi_gdt64)
 	.word	efi_gdt64_end - efi_gdt64
 	.long	0			/* Filled out by user */
 	.word	0
@@ -194,4 +197,4 @@ efi_gdt64:
 	.quad	0x00cf92000000ffff	/* __KERNEL_DS */
 	.quad	0x0080890000000000	/* TS descriptor */
 	.quad   0x0000000000000000	/* TS continued */
-efi_gdt64_end:
+SYM_DATA_END_LABEL(efi_gdt64, SYM_L_LOCAL, efi_gdt64_end)
diff --git a/arch/x86/boot/compressed/head_64.S b/arch/x86/boot/compressed/head_64.S
index 7afe6e067066..ca762ea6a681 100644
--- a/arch/x86/boot/compressed/head_64.S
+++ b/arch/x86/boot/compressed/head_64.S
@@ -659,11 +659,12 @@ SYM_FUNC_END(.Lno_longmode)
 #include "../../kernel/verify_cpu.S"
 
 	.data
-gdt64:
+SYM_DATA_START_LOCAL(gdt64)
 	.word	gdt_end - gdt
 	.quad   0
+SYM_DATA_END(gdt64)
 	.balign	8
-gdt:
+SYM_DATA_START_LOCAL(gdt)
 	.word	gdt_end - gdt
 	.long	gdt
 	.word	0
@@ -672,25 +673,24 @@ gdt:
 	.quad	0x00cf92000000ffff	/* __KERNEL_DS */
 	.quad	0x0080890000000000	/* TS descriptor */
 	.quad   0x0000000000000000	/* TS continued */
-gdt_end:
+SYM_DATA_END_LABEL(gdt, SYM_L_LOCAL, gdt_end)
 
 #ifdef CONFIG_EFI_STUB
-efi_config:
-	.quad	0
+SYM_DATA_LOCAL(efi_config, .quad 0)
 
 #ifdef CONFIG_EFI_MIXED
-	.global efi32_config
-efi32_config:
+SYM_DATA_START(efi32_config)
 	.fill	5,8,0
 	.quad	efi64_thunk
 	.byte	0
+SYM_DATA_END(efi32_config)
 #endif
 
-	.global efi64_config
-efi64_config:
+SYM_DATA_START(efi64_config)
 	.fill	5,8,0
 	.quad	efi_call
 	.byte	1
+SYM_DATA_END(efi64_config)
 #endif /* CONFIG_EFI_STUB */
 
 /*
@@ -698,23 +698,21 @@ efi64_config:
  */
 	.bss
 	.balign 4
-boot_heap:
-	.fill BOOT_HEAP_SIZE, 1, 0
-boot_stack:
+SYM_DATA_LOCAL(boot_heap,	.fill BOOT_HEAP_SIZE, 1, 0)
+
+SYM_DATA_START_LOCAL(boot_stack)
 	.fill BOOT_STACK_SIZE, 1, 0
-boot_stack_end:
+SYM_DATA_END_LABEL(boot_stack, SYM_L_LOCAL, boot_stack_end)
 
 /*
  * Space for page tables (not in .bss so not zeroed)
  */
 	.section ".pgtable","a",@nobits
 	.balign 4096
-pgtable:
-	.fill BOOT_PGT_SIZE, 1, 0
+SYM_DATA_LOCAL(pgtable,		.fill BOOT_PGT_SIZE, 1, 0)
 
 /*
  * The page table is going to be used instead of page table in the trampoline
  * memory.
  */
-top_pgtable:
-	.fill PAGE_SIZE, 1, 0
+SYM_DATA_LOCAL(top_pgtable,	.fill PAGE_SIZE, 1, 0)
diff --git a/arch/x86/boot/compressed/mem_encrypt.S b/arch/x86/boot/compressed/mem_encrypt.S
index 6afb7130a387..28d703cad310 100644
--- a/arch/x86/boot/compressed/mem_encrypt.S
+++ b/arch/x86/boot/compressed/mem_encrypt.S
@@ -96,6 +96,5 @@ ENDPROC(set_sev_encryption_mask)
 
 #ifdef CONFIG_AMD_MEM_ENCRYPT
 	.balign	8
-GLOBAL(sme_me_mask)
-	.quad	0
+SYM_DATA(sme_me_mask, .quad 0)
 #endif
diff --git a/arch/x86/realmode/rm/wakeup_asm.S b/arch/x86/realmode/rm/wakeup_asm.S
index dad6198f1a26..08438ee539bc 100644
--- a/arch/x86/realmode/rm/wakeup_asm.S
+++ b/arch/x86/realmode/rm/wakeup_asm.S
@@ -171,8 +171,8 @@ END(wakeup_gdt)
 
 	/* This is the standard real-mode IDT */
 	.balign	16
-.Lwakeup_idt:
+SYM_DATA_START_LOCAL(.Lwakeup_idt)
 	.word	0xffff		/* limit */
 	.long	0		/* address */
 	.word	0
-END(.Lwakeup_idt)
+SYM_DATA_END(.Lwakeup_idt)
-- 
2.23.0


^ permalink raw reply related	[flat|nested] 110+ messages in thread

* [PATCH v9 13/28] um: Annotate data appropriately
  2019-10-11 11:50 [PATCH v9 00/28] New macros for assembler symbols Jiri Slaby
                   ` (11 preceding siblings ...)
  2019-10-11 11:50 ` [PATCH v9 12/28] x86/boot: " Jiri Slaby
@ 2019-10-11 11:50 ` Jiri Slaby
  2019-10-15 15:37   ` Richard Weinberger
  2019-10-18 16:30   ` [tip: x86/asm] x86/um: " tip-bot2 for Jiri Slaby
  2019-10-11 11:50   ` [Xen-devel] " Jiri Slaby
                   ` (14 subsequent siblings)
  27 siblings, 2 replies; 110+ messages in thread
From: Jiri Slaby @ 2019-10-11 11:50 UTC (permalink / raw)
  To: bp
  Cc: tglx, mingo, hpa, x86, linux-arch, linux-kernel, Jiri Slaby,
	Jeff Dike, Richard Weinberger, user-mode-linux-devel,
	user-mode-linux-user

Use the new SYM_DATA_START and SYM_DATA_END_LABEL macros for vdso_start.

We get:
  0000  2376 OBJECT  GLOBAL DEFAULT    4 vdso_start
  0948     0 OBJECT  GLOBAL DEFAULT    4 vdso_end

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Jeff Dike <jdike@addtoit.com>
Cc: Richard Weinberger <richard@nod.at>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: x86@kernel.org
Cc: user-mode-linux-devel@lists.sourceforge.net
Cc: user-mode-linux-user@lists.sourceforge.net
---
 arch/x86/um/vdso/vdso.S | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/x86/um/vdso/vdso.S b/arch/x86/um/vdso/vdso.S
index a4a3870dc059..a6eaf293a73b 100644
--- a/arch/x86/um/vdso/vdso.S
+++ b/arch/x86/um/vdso/vdso.S
@@ -1,11 +1,11 @@
 /* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/init.h>
+#include <linux/linkage.h>
 
 __INITDATA
 
-	.globl vdso_start, vdso_end
-vdso_start:
+SYM_DATA_START(vdso_start)
 	.incbin "arch/x86/um/vdso/vdso.so"
-vdso_end:
+SYM_DATA_END_LABEL(vdso_start, SYM_L_GLOBAL, vdso_end)
 
 __FINIT
-- 
2.23.0


^ permalink raw reply related	[flat|nested] 110+ messages in thread

* [PATCH v9 14/28] xen/pvh: Annotate data appropriately
  2019-10-11 11:50 [PATCH v9 00/28] New macros for assembler symbols Jiri Slaby
@ 2019-10-11 11:50   ` Jiri Slaby
  2019-10-11 11:50 ` [PATCH v9 02/28] x86/asm/suspend: Use SYM_DATA for data Jiri Slaby
                     ` (26 subsequent siblings)
  27 siblings, 0 replies; 110+ messages in thread
From: Jiri Slaby @ 2019-10-11 11:50 UTC (permalink / raw)
  To: bp
  Cc: tglx, mingo, hpa, x86, linux-arch, linux-kernel, Jiri Slaby,
	Boris Ostrovsky, Juergen Gross, xen-devel

Use the new SYM_DATA_START_LOCAL, and SYM_DATA_END* macros to have:
  0000     8 OBJECT  LOCAL  DEFAULT    6 gdt
  0008    32 OBJECT  LOCAL  DEFAULT    6 gdt_start
  0028     0 OBJECT  LOCAL  DEFAULT    6 gdt_end
  0028   256 OBJECT  LOCAL  DEFAULT    6 early_stack
  0128     0 OBJECT  LOCAL  DEFAULT    6 early_stack

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: Juergen Gross <jgross@suse.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: x86@kernel.org
Cc: xen-devel@lists.xenproject.org
---
 arch/x86/platform/pvh/head.S | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/arch/x86/platform/pvh/head.S b/arch/x86/platform/pvh/head.S
index 1f8825bbaffb..4e63480bb223 100644
--- a/arch/x86/platform/pvh/head.S
+++ b/arch/x86/platform/pvh/head.S
@@ -150,11 +150,12 @@ END(pvh_start_xen)
 
 	.section ".init.data","aw"
 	.balign 8
-gdt:
+SYM_DATA_START_LOCAL(gdt)
 	.word gdt_end - gdt_start
 	.long _pa(gdt_start)
 	.word 0
-gdt_start:
+SYM_DATA_END(gdt)
+SYM_DATA_START_LOCAL(gdt_start)
 	.quad 0x0000000000000000            /* NULL descriptor */
 #ifdef CONFIG_X86_64
 	.quad GDT_ENTRY(0xa09a, 0, 0xfffff) /* PVH_CS_SEL */
@@ -163,15 +164,14 @@ gdt_start:
 #endif
 	.quad GDT_ENTRY(0xc092, 0, 0xfffff) /* PVH_DS_SEL */
 	.quad GDT_ENTRY(0x4090, 0, 0x18)    /* PVH_CANARY_SEL */
-gdt_end:
+SYM_DATA_END_LABEL(gdt_start, SYM_L_LOCAL, gdt_end)
 
 	.balign 16
-canary:
-	.fill 48, 1, 0
+SYM_DATA_LOCAL(canary, .fill 48, 1, 0)
 
-early_stack:
+SYM_DATA_START_LOCAL(early_stack)
 	.fill BOOT_STACK_SIZE, 1, 0
-early_stack_end:
+SYM_DATA_END_LABEL(early_stack, SYM_L_LOCAL, early_stack_end)
 
 	ELFNOTE(Xen, XEN_ELFNOTE_PHYS32_ENTRY,
 	             _ASM_PTR (pvh_start_xen - __START_KERNEL_map))
-- 
2.23.0


^ permalink raw reply related	[flat|nested] 110+ messages in thread

* [Xen-devel] [PATCH v9 14/28] xen/pvh: Annotate data appropriately
@ 2019-10-11 11:50   ` Jiri Slaby
  0 siblings, 0 replies; 110+ messages in thread
From: Jiri Slaby @ 2019-10-11 11:50 UTC (permalink / raw)
  To: bp
  Cc: linux-arch, Juergen Gross, x86, linux-kernel, mingo, hpa,
	xen-devel, tglx, Jiri Slaby, Boris Ostrovsky

Use the new SYM_DATA_START_LOCAL, and SYM_DATA_END* macros to have:
  0000     8 OBJECT  LOCAL  DEFAULT    6 gdt
  0008    32 OBJECT  LOCAL  DEFAULT    6 gdt_start
  0028     0 OBJECT  LOCAL  DEFAULT    6 gdt_end
  0028   256 OBJECT  LOCAL  DEFAULT    6 early_stack
  0128     0 OBJECT  LOCAL  DEFAULT    6 early_stack

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: Juergen Gross <jgross@suse.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: x86@kernel.org
Cc: xen-devel@lists.xenproject.org
---
 arch/x86/platform/pvh/head.S | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/arch/x86/platform/pvh/head.S b/arch/x86/platform/pvh/head.S
index 1f8825bbaffb..4e63480bb223 100644
--- a/arch/x86/platform/pvh/head.S
+++ b/arch/x86/platform/pvh/head.S
@@ -150,11 +150,12 @@ END(pvh_start_xen)
 
 	.section ".init.data","aw"
 	.balign 8
-gdt:
+SYM_DATA_START_LOCAL(gdt)
 	.word gdt_end - gdt_start
 	.long _pa(gdt_start)
 	.word 0
-gdt_start:
+SYM_DATA_END(gdt)
+SYM_DATA_START_LOCAL(gdt_start)
 	.quad 0x0000000000000000            /* NULL descriptor */
 #ifdef CONFIG_X86_64
 	.quad GDT_ENTRY(0xa09a, 0, 0xfffff) /* PVH_CS_SEL */
@@ -163,15 +164,14 @@ gdt_start:
 #endif
 	.quad GDT_ENTRY(0xc092, 0, 0xfffff) /* PVH_DS_SEL */
 	.quad GDT_ENTRY(0x4090, 0, 0x18)    /* PVH_CANARY_SEL */
-gdt_end:
+SYM_DATA_END_LABEL(gdt_start, SYM_L_LOCAL, gdt_end)
 
 	.balign 16
-canary:
-	.fill 48, 1, 0
+SYM_DATA_LOCAL(canary, .fill 48, 1, 0)
 
-early_stack:
+SYM_DATA_START_LOCAL(early_stack)
 	.fill BOOT_STACK_SIZE, 1, 0
-early_stack_end:
+SYM_DATA_END_LABEL(early_stack, SYM_L_LOCAL, early_stack_end)
 
 	ELFNOTE(Xen, XEN_ELFNOTE_PHYS32_ENTRY,
 	             _ASM_PTR (pvh_start_xen - __START_KERNEL_map))
-- 
2.23.0


_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xenproject.org
https://lists.xenproject.org/mailman/listinfo/xen-devel

^ permalink raw reply related	[flat|nested] 110+ messages in thread

* [PATCH v9 15/28] x86/asm/purgatory: Start using annotations
  2019-10-11 11:50 [PATCH v9 00/28] New macros for assembler symbols Jiri Slaby
                   ` (13 preceding siblings ...)
  2019-10-11 11:50   ` [Xen-devel] " Jiri Slaby
@ 2019-10-11 11:50 ` Jiri Slaby
  2019-10-15 17:03   ` Borislav Petkov
  2019-10-18 16:30   ` [tip: x86/asm] " tip-bot2 for Jiri Slaby
  2019-10-11 11:50 ` [PATCH v9 16/28] x86/asm: Do not annotate functions by GLOBAL Jiri Slaby
                   ` (12 subsequent siblings)
  27 siblings, 2 replies; 110+ messages in thread
From: Jiri Slaby @ 2019-10-11 11:50 UTC (permalink / raw)
  To: bp; +Cc: tglx, mingo, hpa, x86, linux-arch, linux-kernel, Jiri Slaby

Purgatory used no annotations at all. So include linux/linkage.h and
annotate everything:
* code by SYM_CODE_*
* data by SYM_DATA_*

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: x86@kernel.org
---
 arch/x86/purgatory/entry64.S      | 21 ++++++++++++---------
 arch/x86/purgatory/setup-x86_64.S | 14 ++++++++------
 arch/x86/purgatory/stack.S        |  7 ++++---
 3 files changed, 24 insertions(+), 18 deletions(-)

diff --git a/arch/x86/purgatory/entry64.S b/arch/x86/purgatory/entry64.S
index 275a646d1048..9d73d3648aa6 100644
--- a/arch/x86/purgatory/entry64.S
+++ b/arch/x86/purgatory/entry64.S
@@ -8,13 +8,13 @@
  * This code has been taken from kexec-tools.
  */
 
+#include <linux/linkage.h>
+
 	.text
 	.balign 16
 	.code64
-	.globl entry64, entry64_regs
-
 
-entry64:
+SYM_CODE_START(entry64)
 	/* Setup a gdt that should be preserved */
 	lgdt gdt(%rip)
 
@@ -54,10 +54,11 @@ new_cs_exit:
 
 	/* Jump to the new code... */
 	jmpq	*rip(%rip)
+SYM_CODE_END(entry64)
 
 	.section ".rodata"
 	.balign 4
-entry64_regs:
+SYM_DATA_START(entry64_regs)
 rax:	.quad 0x0
 rcx:	.quad 0x0
 rdx:	.quad 0x0
@@ -75,12 +76,12 @@ r13:	.quad 0x0
 r14:	.quad 0x0
 r15:	.quad 0x0
 rip:	.quad 0x0
-	.size entry64_regs, . - entry64_regs
+SYM_DATA_END(entry64_regs)
 
 	/* GDT */
 	.section ".rodata"
 	.balign 16
-gdt:
+SYM_DATA_START_LOCAL(gdt)
 	/* 0x00 unusable segment
 	 * 0x08 unused
 	 * so use them as gdt ptr
@@ -94,6 +95,8 @@ gdt:
 
 	/* 0x18 4GB flat data segment */
 	.word 0xFFFF, 0x0000, 0x9200, 0x00CF
-gdt_end:
-stack:	.quad   0, 0
-stack_init:
+SYM_DATA_END_LABEL(gdt, SYM_L_LOCAL, gdt_end)
+
+SYM_DATA_START_LOCAL(stack)
+	.quad   0, 0
+SYM_DATA_END_LABEL(stack, SYM_L_LOCAL, stack_init)
diff --git a/arch/x86/purgatory/setup-x86_64.S b/arch/x86/purgatory/setup-x86_64.S
index 321146be741d..89d9e9e53fcd 100644
--- a/arch/x86/purgatory/setup-x86_64.S
+++ b/arch/x86/purgatory/setup-x86_64.S
@@ -7,14 +7,14 @@
  *
  * This code has been taken from kexec-tools.
  */
+#include <linux/linkage.h>
 #include <asm/purgatory.h>
 
 	.text
-	.globl purgatory_start
 	.balign 16
-purgatory_start:
 	.code64
 
+SYM_CODE_START(purgatory_start)
 	/* Load a gdt so I know what the segment registers are */
 	lgdt	gdt(%rip)
 
@@ -32,10 +32,12 @@ purgatory_start:
 	/* Call the C code */
 	call purgatory
 	jmp	entry64
+SYM_CODE_END(purgatory_start)
 
 	.section ".rodata"
 	.balign 16
-gdt:	/* 0x00 unusable segment
+SYM_DATA_START_LOCAL(gdt)
+	/* 0x00 unusable segment
 	 * 0x08 unused
 	 * so use them as the gdt ptr
 	 */
@@ -48,10 +50,10 @@ gdt:	/* 0x00 unusable segment
 
 	/* 0x18 4GB flat data segment */
 	.word	0xFFFF, 0x0000, 0x9200, 0x00CF
-gdt_end:
+SYM_DATA_END_LABEL(gdt, SYM_L_LOCAL, gdt_end)
 
 	.bss
 	.balign 4096
-lstack:
+SYM_DATA_START_LOCAL(lstack)
 	.skip 4096
-lstack_end:
+SYM_DATA_END_LABEL(lstack, SYM_L_LOCAL, lstack_end)
diff --git a/arch/x86/purgatory/stack.S b/arch/x86/purgatory/stack.S
index 8b1427422dfc..1ef507ca50a5 100644
--- a/arch/x86/purgatory/stack.S
+++ b/arch/x86/purgatory/stack.S
@@ -5,13 +5,14 @@
  * Copyright (C) 2014 Red Hat Inc.
  */
 
+#include <linux/linkage.h>
+
 	/* A stack for the loaded kernel.
 	 * Separate and in the data section so it can be prepopulated.
 	 */
 	.data
 	.balign 4096
-	.globl stack, stack_end
 
-stack:
+SYM_DATA_START(stack)
 	.skip 4096
-stack_end:
+SYM_DATA_END_LABEL(stack, SYM_L_GLOBAL, stack_end)
-- 
2.23.0


^ permalink raw reply related	[flat|nested] 110+ messages in thread

* [PATCH v9 16/28] x86/asm: Do not annotate functions by GLOBAL
  2019-10-11 11:50 [PATCH v9 00/28] New macros for assembler symbols Jiri Slaby
                   ` (14 preceding siblings ...)
  2019-10-11 11:50 ` [PATCH v9 15/28] x86/asm/purgatory: Start using annotations Jiri Slaby
@ 2019-10-11 11:50 ` Jiri Slaby
  2019-10-18 16:30   ` [tip: x86/asm] x86/asm: Do not annotate functions with GLOBAL tip-bot2 for Jiri Slaby
  2019-10-11 11:50 ` [PATCH v9 17/28] x86/asm: Use SYM_INNER_LABEL instead of GLOBAL Jiri Slaby
                   ` (11 subsequent siblings)
  27 siblings, 1 reply; 110+ messages in thread
From: Jiri Slaby @ 2019-10-11 11:50 UTC (permalink / raw)
  To: bp; +Cc: tglx, mingo, hpa, x86, linux-arch, linux-kernel, Jiri Slaby

GLOBAL is an x86's custom macro and is going to die very soon. It was
meant for global symbols, but here, it was used for functions. Instead,
use the new macros SYM_FUNC_START* and SYM_CODE_START* (depending on the
type of a function) which are dedicated for global functions. And since
they both require a closing by SYM_*_END, it is done here too.

startup_64, which does not use GLOBAL, but uses .globl explicitly, is
converted too.

"No alignments" are preserved.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Borislav Petkov <bp@alien8.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: <x86@kernel.org>
---

Notes:
    [v9] in_pm32 is handled in a separate patch

 arch/x86/boot/copy.S      | 16 ++++++++--------
 arch/x86/boot/pmjump.S    |  4 ++--
 arch/x86/kernel/head_64.S |  5 +++--
 3 files changed, 13 insertions(+), 12 deletions(-)

diff --git a/arch/x86/boot/copy.S b/arch/x86/boot/copy.S
index 4c5f4f4ad035..6afd05e819d2 100644
--- a/arch/x86/boot/copy.S
+++ b/arch/x86/boot/copy.S
@@ -15,7 +15,7 @@
 	.code16
 	.text
 
-GLOBAL(memcpy)
+SYM_FUNC_START_NOALIGN(memcpy)
 	pushw	%si
 	pushw	%di
 	movw	%ax, %di
@@ -29,9 +29,9 @@ GLOBAL(memcpy)
 	popw	%di
 	popw	%si
 	retl
-ENDPROC(memcpy)
+SYM_FUNC_END(memcpy)
 
-GLOBAL(memset)
+SYM_FUNC_START_NOALIGN(memset)
 	pushw	%di
 	movw	%ax, %di
 	movzbl	%dl, %eax
@@ -44,22 +44,22 @@ GLOBAL(memset)
 	rep; stosb
 	popw	%di
 	retl
-ENDPROC(memset)
+SYM_FUNC_END(memset)
 
-GLOBAL(copy_from_fs)
+SYM_FUNC_START_NOALIGN(copy_from_fs)
 	pushw	%ds
 	pushw	%fs
 	popw	%ds
 	calll	memcpy
 	popw	%ds
 	retl
-ENDPROC(copy_from_fs)
+SYM_FUNC_END(copy_from_fs)
 
-GLOBAL(copy_to_fs)
+SYM_FUNC_START_NOALIGN(copy_to_fs)
 	pushw	%es
 	pushw	%fs
 	popw	%es
 	calll	memcpy
 	popw	%es
 	retl
-ENDPROC(copy_to_fs)
+SYM_FUNC_END(copy_to_fs)
diff --git a/arch/x86/boot/pmjump.S b/arch/x86/boot/pmjump.S
index 81658fe35380..cbec8bd0841f 100644
--- a/arch/x86/boot/pmjump.S
+++ b/arch/x86/boot/pmjump.S
@@ -21,7 +21,7 @@
 /*
  * void protected_mode_jump(u32 entrypoint, u32 bootparams);
  */
-GLOBAL(protected_mode_jump)
+SYM_FUNC_START_NOALIGN(protected_mode_jump)
 	movl	%edx, %esi		# Pointer to boot_params table
 
 	xorl	%ebx, %ebx
@@ -42,7 +42,7 @@ GLOBAL(protected_mode_jump)
 	.byte	0x66, 0xea		# ljmpl opcode
 2:	.long	.Lin_pm32		# offset
 	.word	__BOOT_CS		# segment
-ENDPROC(protected_mode_jump)
+SYM_FUNC_END(protected_mode_jump)
 
 	.code32
 	.section ".text32","ax"
diff --git a/arch/x86/kernel/head_64.S b/arch/x86/kernel/head_64.S
index 8b0926ac4ac6..10f306e31244 100644
--- a/arch/x86/kernel/head_64.S
+++ b/arch/x86/kernel/head_64.S
@@ -49,8 +49,7 @@ L3_START_KERNEL = pud_index(__START_KERNEL_map)
 	.text
 	__HEAD
 	.code64
-	.globl startup_64
-startup_64:
+SYM_CODE_START_NOALIGN(startup_64)
 	UNWIND_HINT_EMPTY
 	/*
 	 * At this point the CPU runs in 64bit mode CS.L = 1 CS.D = 0,
@@ -90,6 +89,8 @@ startup_64:
 	/* Form the CR3 value being sure to include the CR3 modifier */
 	addq	$(early_top_pgt - __START_KERNEL_map), %rax
 	jmp 1f
+SYM_CODE_END(startup_64)
+
 ENTRY(secondary_startup_64)
 	UNWIND_HINT_EMPTY
 	/*
-- 
2.23.0


^ permalink raw reply related	[flat|nested] 110+ messages in thread

* [PATCH v9 17/28] x86/asm: Use SYM_INNER_LABEL instead of GLOBAL
  2019-10-11 11:50 [PATCH v9 00/28] New macros for assembler symbols Jiri Slaby
                   ` (15 preceding siblings ...)
  2019-10-11 11:50 ` [PATCH v9 16/28] x86/asm: Do not annotate functions by GLOBAL Jiri Slaby
@ 2019-10-11 11:50 ` Jiri Slaby
  2019-10-15 17:31   ` Borislav Petkov
  2019-10-18 16:30   ` [tip: x86/asm] " tip-bot2 for Jiri Slaby
  2019-10-11 11:50 ` [PATCH v9 18/28] x86/asm/realmode: Use SYM_DATA_* " Jiri Slaby
                   ` (10 subsequent siblings)
  27 siblings, 2 replies; 110+ messages in thread
From: Jiri Slaby @ 2019-10-11 11:50 UTC (permalink / raw)
  To: bp
  Cc: tglx, mingo, hpa, x86, linux-arch, linux-kernel, Jiri Slaby,
	Andy Lutomirski

The GLOBAL macro had several meanings and is going away. In this patch,
convert all the inner function labels marked with GLOBAL to use
SYM_INNER_LABEL instead.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: x86@kernel.org
Cc: Andy Lutomirski <luto@amacapital.net>
---
 arch/x86/entry/entry_64.S                |  6 +++---
 arch/x86/entry/entry_64_compat.S         |  4 ++--
 arch/x86/entry/vdso/vdso32/system_call.S |  2 +-
 arch/x86/kernel/ftrace_32.S              |  2 +-
 arch/x86/kernel/ftrace_64.S              | 16 ++++++++--------
 arch/x86/realmode/rm/reboot.S            |  2 +-
 6 files changed, 16 insertions(+), 16 deletions(-)

diff --git a/arch/x86/entry/entry_64.S b/arch/x86/entry/entry_64.S
index 607e25f54ff4..57d246048ac6 100644
--- a/arch/x86/entry/entry_64.S
+++ b/arch/x86/entry/entry_64.S
@@ -162,7 +162,7 @@ ENTRY(entry_SYSCALL_64)
 	pushq	%r11					/* pt_regs->flags */
 	pushq	$__USER_CS				/* pt_regs->cs */
 	pushq	%rcx					/* pt_regs->ip */
-GLOBAL(entry_SYSCALL_64_after_hwframe)
+SYM_INNER_LABEL(entry_SYSCALL_64_after_hwframe, SYM_L_GLOBAL)
 	pushq	%rax					/* pt_regs->orig_ax */
 
 	PUSH_AND_CLEAR_REGS rax=$-ENOSYS
@@ -621,7 +621,7 @@ ret_from_intr:
 	call	prepare_exit_to_usermode
 	TRACE_IRQS_IRETQ
 
-GLOBAL(swapgs_restore_regs_and_return_to_usermode)
+SYM_INNER_LABEL(swapgs_restore_regs_and_return_to_usermode, SYM_L_GLOBAL)
 #ifdef CONFIG_DEBUG_ENTRY
 	/* Assert that pt_regs indicates user mode. */
 	testb	$3, CS(%rsp)
@@ -679,7 +679,7 @@ retint_kernel:
 	 */
 	TRACE_IRQS_IRETQ
 
-GLOBAL(restore_regs_and_return_to_kernel)
+SYM_INNER_LABEL(restore_regs_and_return_to_kernel, SYM_L_GLOBAL)
 #ifdef CONFIG_DEBUG_ENTRY
 	/* Assert that pt_regs indicates kernel mode. */
 	testb	$3, CS(%rsp)
diff --git a/arch/x86/entry/entry_64_compat.S b/arch/x86/entry/entry_64_compat.S
index 39913770a44d..5c7e71669239 100644
--- a/arch/x86/entry/entry_64_compat.S
+++ b/arch/x86/entry/entry_64_compat.S
@@ -146,7 +146,7 @@ ENTRY(entry_SYSENTER_compat)
 	pushq	$X86_EFLAGS_FIXED
 	popfq
 	jmp	.Lsysenter_flags_fixed
-GLOBAL(__end_entry_SYSENTER_compat)
+SYM_INNER_LABEL(__end_entry_SYSENTER_compat, SYM_L_GLOBAL)
 ENDPROC(entry_SYSENTER_compat)
 
 /*
@@ -215,7 +215,7 @@ ENTRY(entry_SYSCALL_compat)
 	pushq	%r11			/* pt_regs->flags */
 	pushq	$__USER32_CS		/* pt_regs->cs */
 	pushq	%rcx			/* pt_regs->ip */
-GLOBAL(entry_SYSCALL_compat_after_hwframe)
+SYM_INNER_LABEL(entry_SYSCALL_compat_after_hwframe, SYM_L_GLOBAL)
 	movl	%eax, %eax		/* discard orig_ax high bits */
 	pushq	%rax			/* pt_regs->orig_ax */
 	pushq	%rdi			/* pt_regs->di */
diff --git a/arch/x86/entry/vdso/vdso32/system_call.S b/arch/x86/entry/vdso/vdso32/system_call.S
index 263d7433dea8..de1fff7188aa 100644
--- a/arch/x86/entry/vdso/vdso32/system_call.S
+++ b/arch/x86/entry/vdso/vdso32/system_call.S
@@ -62,7 +62,7 @@ __kernel_vsyscall:
 
 	/* Enter using int $0x80 */
 	int	$0x80
-GLOBAL(int80_landing_pad)
+SYM_INNER_LABEL(int80_landing_pad, SYM_L_GLOBAL)
 
 	/*
 	 * Restore EDX and ECX in case they were clobbered.  EBP is not
diff --git a/arch/x86/kernel/ftrace_32.S b/arch/x86/kernel/ftrace_32.S
index 073aab525d80..e0061dc976e1 100644
--- a/arch/x86/kernel/ftrace_32.S
+++ b/arch/x86/kernel/ftrace_32.S
@@ -138,7 +138,7 @@ ENTRY(ftrace_regs_caller)
 	movl	function_trace_op, %ecx	# 3rd argument: ftrace_pos
 	pushl	%esp			# 4th argument: pt_regs
 
-GLOBAL(ftrace_regs_call)
+SYM_INNER_LABEL(ftrace_regs_call, SYM_L_GLOBAL)
 	call	ftrace_stub
 
 	addl	$4, %esp		# skip 4th argument
diff --git a/arch/x86/kernel/ftrace_64.S b/arch/x86/kernel/ftrace_64.S
index 809d54397dba..3afaaf555637 100644
--- a/arch/x86/kernel/ftrace_64.S
+++ b/arch/x86/kernel/ftrace_64.S
@@ -140,14 +140,14 @@ ENTRY(ftrace_caller)
 	/* save_mcount_regs fills in first two parameters */
 	save_mcount_regs
 
-GLOBAL(ftrace_caller_op_ptr)
+SYM_INNER_LABEL(ftrace_caller_op_ptr, SYM_L_GLOBAL)
 	/* Load the ftrace_ops into the 3rd parameter */
 	movq function_trace_op(%rip), %rdx
 
 	/* regs go into 4th parameter (but make it NULL) */
 	movq $0, %rcx
 
-GLOBAL(ftrace_call)
+SYM_INNER_LABEL(ftrace_call, SYM_L_GLOBAL)
 	call ftrace_stub
 
 	restore_mcount_regs
@@ -157,10 +157,10 @@ GLOBAL(ftrace_call)
 	 * think twice before adding any new code or changing the
 	 * layout here.
 	 */
-GLOBAL(ftrace_epilogue)
+SYM_INNER_LABEL(ftrace_epilogue, SYM_L_GLOBAL)
 
 #ifdef CONFIG_FUNCTION_GRAPH_TRACER
-GLOBAL(ftrace_graph_call)
+SYM_INNER_LABEL(ftrace_graph_call, SYM_L_GLOBAL)
 	jmp ftrace_stub
 #endif
 
@@ -180,7 +180,7 @@ ENTRY(ftrace_regs_caller)
 	save_mcount_regs 8
 	/* save_mcount_regs fills in first two parameters */
 
-GLOBAL(ftrace_regs_caller_op_ptr)
+SYM_INNER_LABEL(ftrace_regs_caller_op_ptr, SYM_L_GLOBAL)
 	/* Load the ftrace_ops into the 3rd parameter */
 	movq function_trace_op(%rip), %rdx
 
@@ -209,7 +209,7 @@ GLOBAL(ftrace_regs_caller_op_ptr)
 	/* regs go into 4th parameter */
 	leaq (%rsp), %rcx
 
-GLOBAL(ftrace_regs_call)
+SYM_INNER_LABEL(ftrace_regs_call, SYM_L_GLOBAL)
 	call ftrace_stub
 
 	/* Copy flags back to SS, to restore them */
@@ -239,7 +239,7 @@ GLOBAL(ftrace_regs_call)
 	 * The trampoline will add the code to jump
 	 * to the return.
 	 */
-GLOBAL(ftrace_regs_caller_end)
+SYM_INNER_LABEL(ftrace_regs_caller_end, SYM_L_GLOBAL)
 
 	jmp ftrace_epilogue
 
@@ -261,7 +261,7 @@ fgraph_trace:
 	jnz ftrace_graph_caller
 #endif
 
-GLOBAL(ftrace_stub)
+SYM_INNER_LABEL(ftrace_stub, SYM_L_GLOBAL)
 	retq
 
 trace:
diff --git a/arch/x86/realmode/rm/reboot.S b/arch/x86/realmode/rm/reboot.S
index cd2f97b9623b..f91425a01f8f 100644
--- a/arch/x86/realmode/rm/reboot.S
+++ b/arch/x86/realmode/rm/reboot.S
@@ -33,7 +33,7 @@ ENTRY(machine_real_restart_asm)
 	movl	%eax, %cr0
 	ljmpl	$__KERNEL32_CS, $pa_machine_real_restart_paging_off
 
-GLOBAL(machine_real_restart_paging_off)
+SYM_INNER_LABEL(machine_real_restart_paging_off, SYM_L_GLOBAL)
 	xorl	%eax, %eax
 	xorl	%edx, %edx
 	movl	$MSR_EFER, %ecx
-- 
2.23.0


^ permalink raw reply related	[flat|nested] 110+ messages in thread

* [PATCH v9 18/28] x86/asm/realmode: Use SYM_DATA_* instead of GLOBAL
  2019-10-11 11:50 [PATCH v9 00/28] New macros for assembler symbols Jiri Slaby
                   ` (16 preceding siblings ...)
  2019-10-11 11:50 ` [PATCH v9 17/28] x86/asm: Use SYM_INNER_LABEL instead of GLOBAL Jiri Slaby
@ 2019-10-11 11:50 ` Jiri Slaby
  2019-10-18 16:30   ` [tip: x86/asm] " tip-bot2 for Jiri Slaby
  2019-10-11 11:50 ` [PATCH v9 19/28] x86/asm: Kill the last GLOBAL user and remove the macro Jiri Slaby
                   ` (9 subsequent siblings)
  27 siblings, 1 reply; 110+ messages in thread
From: Jiri Slaby @ 2019-10-11 11:50 UTC (permalink / raw)
  To: bp; +Cc: tglx, mingo, hpa, x86, linux-arch, linux-kernel, Jiri Slaby

GLOBAL had several meanings and is going away. In this patch, convert
all the data marked using GLOBAL to use SYM_DATA_START or SYM_DATA
instead.

Note that SYM_DATA_END_LABEL is used to generate tr_gdt_end too.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: x86@kernel.org
---
 arch/x86/realmode/rm/header.S            |  8 +++-----
 arch/x86/realmode/rm/reboot.S            |  8 ++++----
 arch/x86/realmode/rm/stack.S             | 14 ++++++--------
 arch/x86/realmode/rm/trampoline_32.S     | 10 +++++-----
 arch/x86/realmode/rm/trampoline_64.S     | 19 +++++++++----------
 arch/x86/realmode/rm/trampoline_common.S |  2 +-
 arch/x86/realmode/rm/wakeup_asm.S        |  8 ++++----
 arch/x86/realmode/rmpiggy.S              | 10 ++++------
 8 files changed, 36 insertions(+), 43 deletions(-)

diff --git a/arch/x86/realmode/rm/header.S b/arch/x86/realmode/rm/header.S
index 6363761cc74c..af04512c02d9 100644
--- a/arch/x86/realmode/rm/header.S
+++ b/arch/x86/realmode/rm/header.S
@@ -14,7 +14,7 @@
 	.section ".header", "a"
 
 	.balign	16
-GLOBAL(real_mode_header)
+SYM_DATA_START(real_mode_header)
 	.long	pa_text_start
 	.long	pa_ro_end
 	/* SMP trampoline */
@@ -33,11 +33,9 @@ GLOBAL(real_mode_header)
 #ifdef CONFIG_X86_64
 	.long	__KERNEL32_CS
 #endif
-END(real_mode_header)
+SYM_DATA_END(real_mode_header)
 
 	/* End signature, used to verify integrity */
 	.section ".signature","a"
 	.balign 4
-GLOBAL(end_signature)
-	.long	REALMODE_END_SIGNATURE
-END(end_signature)
+SYM_DATA(end_signature, .long REALMODE_END_SIGNATURE)
diff --git a/arch/x86/realmode/rm/reboot.S b/arch/x86/realmode/rm/reboot.S
index f91425a01f8f..424826afb501 100644
--- a/arch/x86/realmode/rm/reboot.S
+++ b/arch/x86/realmode/rm/reboot.S
@@ -127,13 +127,13 @@ bios:
 	.section ".rodata", "a"
 
 	.balign	16
-GLOBAL(machine_real_restart_idt)
+SYM_DATA_START(machine_real_restart_idt)
 	.word	0xffff		/* Length - real mode default value */
 	.long	0		/* Base - real mode default value */
-END(machine_real_restart_idt)
+SYM_DATA_END(machine_real_restart_idt)
 
 	.balign	16
-GLOBAL(machine_real_restart_gdt)
+SYM_DATA_START(machine_real_restart_gdt)
 	/* Self-pointer */
 	.word	0xffff		/* Length - real mode default value */
 	.long	pa_machine_real_restart_gdt
@@ -153,4 +153,4 @@ GLOBAL(machine_real_restart_gdt)
 	 * semantics we don't have to reload the segments once CR0.PE = 0.
 	 */
 	.quad	GDT_ENTRY(0x0093, 0x100, 0xffff)
-END(machine_real_restart_gdt)
+SYM_DATA_END(machine_real_restart_gdt)
diff --git a/arch/x86/realmode/rm/stack.S b/arch/x86/realmode/rm/stack.S
index 8d4cb64799ea..0fca64061ad2 100644
--- a/arch/x86/realmode/rm/stack.S
+++ b/arch/x86/realmode/rm/stack.S
@@ -6,15 +6,13 @@
 #include <linux/linkage.h>
 
 	.data
-GLOBAL(HEAP)
-	.long	rm_heap
-GLOBAL(heap_end)
-	.long	rm_stack
+SYM_DATA(HEAP,		.long rm_heap)
+SYM_DATA(heap_end,	.long rm_stack)
 
 	.bss
 	.balign	16
-GLOBAL(rm_heap)
-	.space	2048
-GLOBAL(rm_stack)
+SYM_DATA(rm_heap,	.space 2048)
+
+SYM_DATA_START(rm_stack)
 	.space	2048
-GLOBAL(rm_stack_end)
+SYM_DATA_END_LABEL(rm_stack, SYM_L_GLOBAL, rm_stack_end)
diff --git a/arch/x86/realmode/rm/trampoline_32.S b/arch/x86/realmode/rm/trampoline_32.S
index 1868b158480d..ff00594a2ed0 100644
--- a/arch/x86/realmode/rm/trampoline_32.S
+++ b/arch/x86/realmode/rm/trampoline_32.S
@@ -62,10 +62,10 @@ ENTRY(startup_32)			# note: also used from wakeup_asm.S
 
 	.bss
 	.balign 8
-GLOBAL(trampoline_header)
-	tr_start:		.space	4
-	tr_gdt_pad:		.space	2
-	tr_gdt:			.space	6
-END(trampoline_header)
+SYM_DATA_START(trampoline_header)
+	SYM_DATA_LOCAL(tr_start,	.space 4)
+	SYM_DATA_LOCAL(tr_gdt_pad,	.space 2)
+	SYM_DATA_LOCAL(tr_gdt,		.space 6)
+SYM_DATA_END(trampoline_header)
 	
 #include "trampoline_common.S"
diff --git a/arch/x86/realmode/rm/trampoline_64.S b/arch/x86/realmode/rm/trampoline_64.S
index aee2b45d83b8..c1aeab1dae25 100644
--- a/arch/x86/realmode/rm/trampoline_64.S
+++ b/arch/x86/realmode/rm/trampoline_64.S
@@ -149,26 +149,25 @@ ENTRY(startup_64)
 	# Duplicate the global descriptor table
 	# so the kernel can live anywhere
 	.balign	16
-	.globl tr_gdt
-tr_gdt:
+SYM_DATA_START(tr_gdt)
 	.short	tr_gdt_end - tr_gdt - 1	# gdt limit
 	.long	pa_tr_gdt
 	.short	0
 	.quad	0x00cf9b000000ffff	# __KERNEL32_CS
 	.quad	0x00af9b000000ffff	# __KERNEL_CS
 	.quad	0x00cf93000000ffff	# __KERNEL_DS
-tr_gdt_end:
+SYM_DATA_END_LABEL(tr_gdt, SYM_L_LOCAL, tr_gdt_end)
 
 	.bss
 	.balign	PAGE_SIZE
-GLOBAL(trampoline_pgd)		.space	PAGE_SIZE
+SYM_DATA(trampoline_pgd, .space PAGE_SIZE)
 
 	.balign	8
-GLOBAL(trampoline_header)
-	tr_start:		.space	8
-	GLOBAL(tr_efer)		.space	8
-	GLOBAL(tr_cr4)		.space	4
-	GLOBAL(tr_flags)	.space	4
-END(trampoline_header)
+SYM_DATA_START(trampoline_header)
+	SYM_DATA_LOCAL(tr_start,	.space 8)
+	SYM_DATA(tr_efer,		.space 8)
+	SYM_DATA(tr_cr4,		.space 4)
+	SYM_DATA(tr_flags,		.space 4)
+SYM_DATA_END(trampoline_header)
 
 #include "trampoline_common.S"
diff --git a/arch/x86/realmode/rm/trampoline_common.S b/arch/x86/realmode/rm/trampoline_common.S
index 8d8208dcca24..5033e640f957 100644
--- a/arch/x86/realmode/rm/trampoline_common.S
+++ b/arch/x86/realmode/rm/trampoline_common.S
@@ -1,4 +1,4 @@
 /* SPDX-License-Identifier: GPL-2.0 */
 	.section ".rodata","a"
 	.balign	16
-tr_idt: .fill 1, 6, 0
+SYM_DATA_LOCAL(tr_idt, .fill 1, 6, 0)
diff --git a/arch/x86/realmode/rm/wakeup_asm.S b/arch/x86/realmode/rm/wakeup_asm.S
index 08438ee539bc..01092d665bc2 100644
--- a/arch/x86/realmode/rm/wakeup_asm.S
+++ b/arch/x86/realmode/rm/wakeup_asm.S
@@ -17,7 +17,7 @@
 	.section ".data", "aw"
 
 	.balign	16
-GLOBAL(wakeup_header)
+SYM_DATA_START(wakeup_header)
 	video_mode:	.short	0	/* Video mode number */
 	pmode_entry:	.long	0
 	pmode_cs:	.short	__KERNEL_CS
@@ -31,7 +31,7 @@ GLOBAL(wakeup_header)
 	realmode_flags:	.long	0
 	real_magic:	.long	0
 	signature:	.long	WAKEUP_HEADER_SIGNATURE
-END(wakeup_header)
+SYM_DATA_END(wakeup_header)
 
 	.text
 	.code16
@@ -152,7 +152,7 @@ bogus_real_magic:
 	 */
 
 	.balign	16
-GLOBAL(wakeup_gdt)
+SYM_DATA_START(wakeup_gdt)
 	.word	3*8-1		/* Self-descriptor */
 	.long	pa_wakeup_gdt
 	.word	0
@@ -164,7 +164,7 @@ GLOBAL(wakeup_gdt)
 	.word	0xffff		/* 16-bit data segment @ real_mode_base */
 	.long	0x93000000 + pa_real_mode_base
 	.word	0x008f		/* big real mode */
-END(wakeup_gdt)
+SYM_DATA_END(wakeup_gdt)
 
 	.section ".rodata","a"
 	.balign	8
diff --git a/arch/x86/realmode/rmpiggy.S b/arch/x86/realmode/rmpiggy.S
index c078dba40cef..c8fef76743f6 100644
--- a/arch/x86/realmode/rmpiggy.S
+++ b/arch/x86/realmode/rmpiggy.S
@@ -10,12 +10,10 @@
 
 	.balign PAGE_SIZE
 
-GLOBAL(real_mode_blob)
+SYM_DATA_START(real_mode_blob)
 	.incbin	"arch/x86/realmode/rm/realmode.bin"
-END(real_mode_blob)
+SYM_DATA_END_LABEL(real_mode_blob, SYM_L_GLOBAL, real_mode_blob_end)
 
-GLOBAL(real_mode_blob_end);
-
-GLOBAL(real_mode_relocs)
+SYM_DATA_START(real_mode_relocs)
 	.incbin	"arch/x86/realmode/rm/realmode.relocs"
-END(real_mode_relocs)
+SYM_DATA_END(real_mode_relocs)
-- 
2.23.0


^ permalink raw reply related	[flat|nested] 110+ messages in thread

* [PATCH v9 19/28] x86/asm: Kill the last GLOBAL user and remove the macro
  2019-10-11 11:50 [PATCH v9 00/28] New macros for assembler symbols Jiri Slaby
                   ` (17 preceding siblings ...)
  2019-10-11 11:50 ` [PATCH v9 18/28] x86/asm/realmode: Use SYM_DATA_* " Jiri Slaby
@ 2019-10-11 11:50 ` Jiri Slaby
  2019-10-18 16:30   ` [tip: x86/asm] x86/asm: Remove " tip-bot2 for Jiri Slaby
  2019-10-11 11:51   ` [Xen-devel] " Jiri Slaby
                   ` (8 subsequent siblings)
  27 siblings, 1 reply; 110+ messages in thread
From: Jiri Slaby @ 2019-10-11 11:50 UTC (permalink / raw)
  To: bp; +Cc: tglx, mingo, hpa, x86, linux-arch, linux-kernel, Jiri Slaby

Convert the remaining 32bit users and remove GLOBAL macro finally. In
particular, this means to use SYM_ENTRY for the singlestepping hack
region.

Exclude the global definition of GLOBAL from x86 too.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: x86@kernel.org
---
 arch/x86/entry/entry_32.S      | 4 ++--
 arch/x86/include/asm/linkage.h | 8 --------
 include/linux/linkage.h        | 2 ++
 3 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/arch/x86/entry/entry_32.S b/arch/x86/entry/entry_32.S
index f37ff583cecb..4900a6a5e125 100644
--- a/arch/x86/entry/entry_32.S
+++ b/arch/x86/entry/entry_32.S
@@ -832,7 +832,7 @@ SYM_INNER_LABEL_ALIGN(resume_userspace, SYM_L_LOCAL)
 	jmp	restore_all
 SYM_CODE_END(ret_from_exception)
 
-GLOBAL(__begin_SYSENTER_singlestep_region)
+SYM_ENTRY(__begin_SYSENTER_singlestep_region, SYM_L_GLOBAL, SYM_A_NONE)
 /*
  * All code from here through __end_SYSENTER_singlestep_region is subject
  * to being single-stepped if a user program sets TF and executes SYSENTER.
@@ -1011,7 +1011,7 @@ ENTRY(entry_SYSENTER_32)
 	pushl	$X86_EFLAGS_FIXED
 	popfl
 	jmp	.Lsysenter_flags_fixed
-GLOBAL(__end_SYSENTER_singlestep_region)
+SYM_ENTRY(__end_SYSENTER_singlestep_region, SYM_L_GLOBAL, SYM_A_NONE)
 ENDPROC(entry_SYSENTER_32)
 
 /*
diff --git a/arch/x86/include/asm/linkage.h b/arch/x86/include/asm/linkage.h
index e07188e8d763..365111789cc6 100644
--- a/arch/x86/include/asm/linkage.h
+++ b/arch/x86/include/asm/linkage.h
@@ -13,14 +13,6 @@
 
 #ifdef __ASSEMBLY__
 
-/*
- * GLOBAL is DEPRECATED
- *
- * use SYM_DATA_START, SYM_FUNC_START, SYM_INNER_LABEL, SYM_CODE_START, or
- * similar
- */
-#define GLOBAL(name)	SYM_ENTRY(name, SYM_L_GLOBAL, SYM_A_NONE)
-
 #if defined(CONFIG_X86_64) || defined(CONFIG_X86_ALIGNMENT_16)
 #define __ALIGN		.p2align 4, 0x90
 #define __ALIGN_STR	__stringify(__ALIGN)
diff --git a/include/linux/linkage.h b/include/linux/linkage.h
index f3ae8f3dea2c..cb1108dde385 100644
--- a/include/linux/linkage.h
+++ b/include/linux/linkage.h
@@ -105,12 +105,14 @@
 
 /* === DEPRECATED annotations === */
 
+#ifndef CONFIG_X86
 #ifndef GLOBAL
 /* deprecated, use SYM_DATA*, SYM_ENTRY, or similar */
 #define GLOBAL(name) \
 	.globl name ASM_NL \
 	name:
 #endif
+#endif
 
 #ifndef ENTRY
 /* deprecated, use SYM_FUNC_START */
-- 
2.23.0


^ permalink raw reply related	[flat|nested] 110+ messages in thread

* [PATCH v9 20/28] x86/asm: Make some functions local
  2019-10-11 11:50 [PATCH v9 00/28] New macros for assembler symbols Jiri Slaby
@ 2019-10-11 11:51   ` Jiri Slaby
  2019-10-11 11:50 ` [PATCH v9 02/28] x86/asm/suspend: Use SYM_DATA for data Jiri Slaby
                     ` (26 subsequent siblings)
  27 siblings, 0 replies; 110+ messages in thread
From: Jiri Slaby @ 2019-10-11 11:51 UTC (permalink / raw)
  To: bp
  Cc: tglx, mingo, hpa, x86, linux-arch, linux-kernel, Jiri Slaby,
	Matt Fleming, Ard Biesheuvel, linux-efi, xen-devel

There is a couple of assembly functions, which are invoked only locally
in the file they are defined. In C, they are marked "static". In
assembly, annotate them using SYM_{FUNC,CODE}_START_LOCAL (and switch
their ENDPROC to SYM_{FUNC,CODE}_END too). Whether FUNC or CODE is used,
depends on whether ENDPROC or END was used for a particular function
before.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Borislav Petkov <bp@alien8.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: x86@kernel.org
Cc: Matt Fleming <matt@codeblueprint.co.uk>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: linux-efi@vger.kernel.org
Cc: xen-devel@lists.xenproject.org
---
 arch/x86/boot/compressed/efi_thunk_64.S |  8 ++++----
 arch/x86/entry/entry_64.S               | 21 +++++++++++----------
 arch/x86/lib/copy_page_64.S             |  4 ++--
 arch/x86/lib/memcpy_64.S                | 12 ++++++------
 arch/x86/lib/memset_64.S                |  8 ++++----
 arch/x86/platform/efi/efi_thunk_64.S    | 12 ++++++------
 arch/x86/platform/pvh/head.S            |  4 ++--
 7 files changed, 35 insertions(+), 34 deletions(-)

diff --git a/arch/x86/boot/compressed/efi_thunk_64.S b/arch/x86/boot/compressed/efi_thunk_64.S
index d66000d23921..31312070db22 100644
--- a/arch/x86/boot/compressed/efi_thunk_64.S
+++ b/arch/x86/boot/compressed/efi_thunk_64.S
@@ -99,12 +99,12 @@ ENTRY(efi64_thunk)
 	ret
 ENDPROC(efi64_thunk)
 
-ENTRY(efi_exit32)
+SYM_FUNC_START_LOCAL(efi_exit32)
 	movq	func_rt_ptr(%rip), %rax
 	push	%rax
 	mov	%rdi, %rax
 	ret
-ENDPROC(efi_exit32)
+SYM_FUNC_END(efi_exit32)
 
 	.code32
 /*
@@ -112,7 +112,7 @@ ENDPROC(efi_exit32)
  *
  * The stack should represent the 32-bit calling convention.
  */
-ENTRY(efi_enter32)
+SYM_FUNC_START_LOCAL(efi_enter32)
 	movl	$__KERNEL_DS, %eax
 	movl	%eax, %ds
 	movl	%eax, %es
@@ -172,7 +172,7 @@ ENTRY(efi_enter32)
 	btsl	$X86_CR0_PG_BIT, %eax
 	movl	%eax, %cr0
 	lret
-ENDPROC(efi_enter32)
+SYM_FUNC_END(efi_enter32)
 
 	.data
 	.balign	8
diff --git a/arch/x86/entry/entry_64.S b/arch/x86/entry/entry_64.S
index 57d246048ac6..1568da63bf16 100644
--- a/arch/x86/entry/entry_64.S
+++ b/arch/x86/entry/entry_64.S
@@ -1101,7 +1101,8 @@ idtentry hypervisor_callback xen_do_hypervisor_callback has_error_code=0
  * existing activation in its critical region -- if so, we pop the current
  * activation and restart the handler using the previous one.
  */
-ENTRY(xen_do_hypervisor_callback)		/* do_hypervisor_callback(struct *pt_regs) */
+/* do_hypervisor_callback(struct *pt_regs) */
+SYM_CODE_START_LOCAL(xen_do_hypervisor_callback)
 
 /*
  * Since we don't modify %rdi, evtchn_do_upall(struct *pt_regs) will
@@ -1119,7 +1120,7 @@ ENTRY(xen_do_hypervisor_callback)		/* do_hypervisor_callback(struct *pt_regs) */
 	call	xen_maybe_preempt_hcall
 #endif
 	jmp	error_exit
-END(xen_do_hypervisor_callback)
+SYM_CODE_END(xen_do_hypervisor_callback)
 
 /*
  * Hypervisor uses this for application faults while it executes.
@@ -1214,7 +1215,7 @@ idtentry machine_check		do_mce			has_error_code=0	paranoid=1
  * Use slow, but surefire "are we in kernel?" check.
  * Return: ebx=0: need swapgs on exit, ebx=1: otherwise
  */
-ENTRY(paranoid_entry)
+SYM_CODE_START_LOCAL(paranoid_entry)
 	UNWIND_HINT_FUNC
 	cld
 	PUSH_AND_CLEAR_REGS save_ret=1
@@ -1248,7 +1249,7 @@ ENTRY(paranoid_entry)
 	FENCE_SWAPGS_KERNEL_ENTRY
 
 	ret
-END(paranoid_entry)
+SYM_CODE_END(paranoid_entry)
 
 /*
  * "Paranoid" exit path from exception stack.  This is invoked
@@ -1262,7 +1263,7 @@ END(paranoid_entry)
  *
  * On entry, ebx is "no swapgs" flag (1: don't need swapgs, 0: need it)
  */
-ENTRY(paranoid_exit)
+SYM_CODE_START_LOCAL(paranoid_exit)
 	UNWIND_HINT_REGS
 	DISABLE_INTERRUPTS(CLBR_ANY)
 	TRACE_IRQS_OFF_DEBUG
@@ -1279,12 +1280,12 @@ ENTRY(paranoid_exit)
 	RESTORE_CR3	scratch_reg=%rbx save_reg=%r14
 .Lparanoid_exit_restore:
 	jmp restore_regs_and_return_to_kernel
-END(paranoid_exit)
+SYM_CODE_END(paranoid_exit)
 
 /*
  * Save all registers in pt_regs, and switch GS if needed.
  */
-ENTRY(error_entry)
+SYM_CODE_START_LOCAL(error_entry)
 	UNWIND_HINT_FUNC
 	cld
 	PUSH_AND_CLEAR_REGS save_ret=1
@@ -1364,16 +1365,16 @@ ENTRY(error_entry)
 	call	fixup_bad_iret
 	mov	%rax, %rsp
 	jmp	.Lerror_entry_from_usermode_after_swapgs
-END(error_entry)
+SYM_CODE_END(error_entry)
 
-ENTRY(error_exit)
+SYM_CODE_START_LOCAL(error_exit)
 	UNWIND_HINT_REGS
 	DISABLE_INTERRUPTS(CLBR_ANY)
 	TRACE_IRQS_OFF
 	testb	$3, CS(%rsp)
 	jz	retint_kernel
 	jmp	.Lretint_user
-END(error_exit)
+SYM_CODE_END(error_exit)
 
 /*
  * Runs on exception stack.  Xen PV does not go through this path at all,
diff --git a/arch/x86/lib/copy_page_64.S b/arch/x86/lib/copy_page_64.S
index fd2d09afa097..f505870bd93b 100644
--- a/arch/x86/lib/copy_page_64.S
+++ b/arch/x86/lib/copy_page_64.S
@@ -21,7 +21,7 @@ ENTRY(copy_page)
 ENDPROC(copy_page)
 EXPORT_SYMBOL(copy_page)
 
-ENTRY(copy_page_regs)
+SYM_FUNC_START_LOCAL(copy_page_regs)
 	subq	$2*8,	%rsp
 	movq	%rbx,	(%rsp)
 	movq	%r12,	1*8(%rsp)
@@ -86,4 +86,4 @@ ENTRY(copy_page_regs)
 	movq	1*8(%rsp), %r12
 	addq	$2*8, %rsp
 	ret
-ENDPROC(copy_page_regs)
+SYM_FUNC_END(copy_page_regs)
diff --git a/arch/x86/lib/memcpy_64.S b/arch/x86/lib/memcpy_64.S
index 57a64266ba69..3265b21e86c0 100644
--- a/arch/x86/lib/memcpy_64.S
+++ b/arch/x86/lib/memcpy_64.S
@@ -29,7 +29,7 @@
  * rax original destination
  */
 SYM_FUNC_START_ALIAS(__memcpy)
-ENTRY(memcpy)
+SYM_FUNC_START_LOCAL(memcpy)
 	ALTERNATIVE_2 "jmp memcpy_orig", "", X86_FEATURE_REP_GOOD, \
 		      "jmp memcpy_erms", X86_FEATURE_ERMS
 
@@ -41,7 +41,7 @@ ENTRY(memcpy)
 	movl %edx, %ecx
 	rep movsb
 	ret
-ENDPROC(memcpy)
+SYM_FUNC_END(memcpy)
 SYM_FUNC_END_ALIAS(__memcpy)
 EXPORT_SYMBOL(memcpy)
 EXPORT_SYMBOL(__memcpy)
@@ -50,14 +50,14 @@ EXPORT_SYMBOL(__memcpy)
  * memcpy_erms() - enhanced fast string memcpy. This is faster and
  * simpler than memcpy. Use memcpy_erms when possible.
  */
-ENTRY(memcpy_erms)
+SYM_FUNC_START_LOCAL(memcpy_erms)
 	movq %rdi, %rax
 	movq %rdx, %rcx
 	rep movsb
 	ret
-ENDPROC(memcpy_erms)
+SYM_FUNC_END(memcpy_erms)
 
-ENTRY(memcpy_orig)
+SYM_FUNC_START_LOCAL(memcpy_orig)
 	movq %rdi, %rax
 
 	cmpq $0x20, %rdx
@@ -182,7 +182,7 @@ ENTRY(memcpy_orig)
 
 .Lend:
 	retq
-ENDPROC(memcpy_orig)
+SYM_FUNC_END(memcpy_orig)
 
 #ifndef CONFIG_UML
 
diff --git a/arch/x86/lib/memset_64.S b/arch/x86/lib/memset_64.S
index 927ac44d34aa..564abf9ecedb 100644
--- a/arch/x86/lib/memset_64.S
+++ b/arch/x86/lib/memset_64.S
@@ -59,16 +59,16 @@ EXPORT_SYMBOL(__memset)
  *
  * rax   original destination
  */
-ENTRY(memset_erms)
+SYM_FUNC_START_LOCAL(memset_erms)
 	movq %rdi,%r9
 	movb %sil,%al
 	movq %rdx,%rcx
 	rep stosb
 	movq %r9,%rax
 	ret
-ENDPROC(memset_erms)
+SYM_FUNC_END(memset_erms)
 
-ENTRY(memset_orig)
+SYM_FUNC_START_LOCAL(memset_orig)
 	movq %rdi,%r10
 
 	/* expand byte value  */
@@ -139,4 +139,4 @@ ENTRY(memset_orig)
 	subq %r8,%rdx
 	jmp .Lafter_bad_alignment
 .Lfinal:
-ENDPROC(memset_orig)
+SYM_FUNC_END(memset_orig)
diff --git a/arch/x86/platform/efi/efi_thunk_64.S b/arch/x86/platform/efi/efi_thunk_64.S
index 46c58b08739c..d677a7eb2d0a 100644
--- a/arch/x86/platform/efi/efi_thunk_64.S
+++ b/arch/x86/platform/efi/efi_thunk_64.S
@@ -67,7 +67,7 @@ ENDPROC(efi64_thunk)
  *
  * This function must be invoked with a 1:1 mapped stack.
  */
-ENTRY(__efi64_thunk)
+SYM_FUNC_START_LOCAL(__efi64_thunk)
 	movl	%ds, %eax
 	push	%rax
 	movl	%es, %eax
@@ -114,14 +114,14 @@ ENTRY(__efi64_thunk)
 	or	%rcx, %rax
 1:
 	ret
-ENDPROC(__efi64_thunk)
+SYM_FUNC_END(__efi64_thunk)
 
-ENTRY(efi_exit32)
+SYM_FUNC_START_LOCAL(efi_exit32)
 	movq	func_rt_ptr(%rip), %rax
 	push	%rax
 	mov	%rdi, %rax
 	ret
-ENDPROC(efi_exit32)
+SYM_FUNC_END(efi_exit32)
 
 	.code32
 /*
@@ -129,7 +129,7 @@ ENDPROC(efi_exit32)
  *
  * The stack should represent the 32-bit calling convention.
  */
-ENTRY(efi_enter32)
+SYM_FUNC_START_LOCAL(efi_enter32)
 	movl	$__KERNEL_DS, %eax
 	movl	%eax, %ds
 	movl	%eax, %es
@@ -145,7 +145,7 @@ ENTRY(efi_enter32)
 	pushl	%eax
 
 	lret
-ENDPROC(efi_enter32)
+SYM_FUNC_END(efi_enter32)
 
 	.data
 	.balign	8
diff --git a/arch/x86/platform/pvh/head.S b/arch/x86/platform/pvh/head.S
index 4e63480bb223..43b4d864817e 100644
--- a/arch/x86/platform/pvh/head.S
+++ b/arch/x86/platform/pvh/head.S
@@ -50,7 +50,7 @@
 #define PVH_DS_SEL		(PVH_GDT_ENTRY_DS * 8)
 #define PVH_CANARY_SEL		(PVH_GDT_ENTRY_CANARY * 8)
 
-ENTRY(pvh_start_xen)
+SYM_CODE_START_LOCAL(pvh_start_xen)
 	cld
 
 	lgdt (_pa(gdt))
@@ -146,7 +146,7 @@ ENTRY(pvh_start_xen)
 
 	ljmp $PVH_CS_SEL, $_pa(startup_32)
 #endif
-END(pvh_start_xen)
+SYM_CODE_END(pvh_start_xen)
 
 	.section ".init.data","aw"
 	.balign 8
-- 
2.23.0


^ permalink raw reply related	[flat|nested] 110+ messages in thread

* [Xen-devel] [PATCH v9 20/28] x86/asm: Make some functions local
@ 2019-10-11 11:51   ` Jiri Slaby
  0 siblings, 0 replies; 110+ messages in thread
From: Jiri Slaby @ 2019-10-11 11:51 UTC (permalink / raw)
  To: bp
  Cc: linux-arch, linux-efi, Ard Biesheuvel, Matt Fleming, x86,
	linux-kernel, mingo, hpa, xen-devel, tglx, Jiri Slaby

There is a couple of assembly functions, which are invoked only locally
in the file they are defined. In C, they are marked "static". In
assembly, annotate them using SYM_{FUNC,CODE}_START_LOCAL (and switch
their ENDPROC to SYM_{FUNC,CODE}_END too). Whether FUNC or CODE is used,
depends on whether ENDPROC or END was used for a particular function
before.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Borislav Petkov <bp@alien8.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: x86@kernel.org
Cc: Matt Fleming <matt@codeblueprint.co.uk>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: linux-efi@vger.kernel.org
Cc: xen-devel@lists.xenproject.org
---
 arch/x86/boot/compressed/efi_thunk_64.S |  8 ++++----
 arch/x86/entry/entry_64.S               | 21 +++++++++++----------
 arch/x86/lib/copy_page_64.S             |  4 ++--
 arch/x86/lib/memcpy_64.S                | 12 ++++++------
 arch/x86/lib/memset_64.S                |  8 ++++----
 arch/x86/platform/efi/efi_thunk_64.S    | 12 ++++++------
 arch/x86/platform/pvh/head.S            |  4 ++--
 7 files changed, 35 insertions(+), 34 deletions(-)

diff --git a/arch/x86/boot/compressed/efi_thunk_64.S b/arch/x86/boot/compressed/efi_thunk_64.S
index d66000d23921..31312070db22 100644
--- a/arch/x86/boot/compressed/efi_thunk_64.S
+++ b/arch/x86/boot/compressed/efi_thunk_64.S
@@ -99,12 +99,12 @@ ENTRY(efi64_thunk)
 	ret
 ENDPROC(efi64_thunk)
 
-ENTRY(efi_exit32)
+SYM_FUNC_START_LOCAL(efi_exit32)
 	movq	func_rt_ptr(%rip), %rax
 	push	%rax
 	mov	%rdi, %rax
 	ret
-ENDPROC(efi_exit32)
+SYM_FUNC_END(efi_exit32)
 
 	.code32
 /*
@@ -112,7 +112,7 @@ ENDPROC(efi_exit32)
  *
  * The stack should represent the 32-bit calling convention.
  */
-ENTRY(efi_enter32)
+SYM_FUNC_START_LOCAL(efi_enter32)
 	movl	$__KERNEL_DS, %eax
 	movl	%eax, %ds
 	movl	%eax, %es
@@ -172,7 +172,7 @@ ENTRY(efi_enter32)
 	btsl	$X86_CR0_PG_BIT, %eax
 	movl	%eax, %cr0
 	lret
-ENDPROC(efi_enter32)
+SYM_FUNC_END(efi_enter32)
 
 	.data
 	.balign	8
diff --git a/arch/x86/entry/entry_64.S b/arch/x86/entry/entry_64.S
index 57d246048ac6..1568da63bf16 100644
--- a/arch/x86/entry/entry_64.S
+++ b/arch/x86/entry/entry_64.S
@@ -1101,7 +1101,8 @@ idtentry hypervisor_callback xen_do_hypervisor_callback has_error_code=0
  * existing activation in its critical region -- if so, we pop the current
  * activation and restart the handler using the previous one.
  */
-ENTRY(xen_do_hypervisor_callback)		/* do_hypervisor_callback(struct *pt_regs) */
+/* do_hypervisor_callback(struct *pt_regs) */
+SYM_CODE_START_LOCAL(xen_do_hypervisor_callback)
 
 /*
  * Since we don't modify %rdi, evtchn_do_upall(struct *pt_regs) will
@@ -1119,7 +1120,7 @@ ENTRY(xen_do_hypervisor_callback)		/* do_hypervisor_callback(struct *pt_regs) */
 	call	xen_maybe_preempt_hcall
 #endif
 	jmp	error_exit
-END(xen_do_hypervisor_callback)
+SYM_CODE_END(xen_do_hypervisor_callback)
 
 /*
  * Hypervisor uses this for application faults while it executes.
@@ -1214,7 +1215,7 @@ idtentry machine_check		do_mce			has_error_code=0	paranoid=1
  * Use slow, but surefire "are we in kernel?" check.
  * Return: ebx=0: need swapgs on exit, ebx=1: otherwise
  */
-ENTRY(paranoid_entry)
+SYM_CODE_START_LOCAL(paranoid_entry)
 	UNWIND_HINT_FUNC
 	cld
 	PUSH_AND_CLEAR_REGS save_ret=1
@@ -1248,7 +1249,7 @@ ENTRY(paranoid_entry)
 	FENCE_SWAPGS_KERNEL_ENTRY
 
 	ret
-END(paranoid_entry)
+SYM_CODE_END(paranoid_entry)
 
 /*
  * "Paranoid" exit path from exception stack.  This is invoked
@@ -1262,7 +1263,7 @@ END(paranoid_entry)
  *
  * On entry, ebx is "no swapgs" flag (1: don't need swapgs, 0: need it)
  */
-ENTRY(paranoid_exit)
+SYM_CODE_START_LOCAL(paranoid_exit)
 	UNWIND_HINT_REGS
 	DISABLE_INTERRUPTS(CLBR_ANY)
 	TRACE_IRQS_OFF_DEBUG
@@ -1279,12 +1280,12 @@ ENTRY(paranoid_exit)
 	RESTORE_CR3	scratch_reg=%rbx save_reg=%r14
 .Lparanoid_exit_restore:
 	jmp restore_regs_and_return_to_kernel
-END(paranoid_exit)
+SYM_CODE_END(paranoid_exit)
 
 /*
  * Save all registers in pt_regs, and switch GS if needed.
  */
-ENTRY(error_entry)
+SYM_CODE_START_LOCAL(error_entry)
 	UNWIND_HINT_FUNC
 	cld
 	PUSH_AND_CLEAR_REGS save_ret=1
@@ -1364,16 +1365,16 @@ ENTRY(error_entry)
 	call	fixup_bad_iret
 	mov	%rax, %rsp
 	jmp	.Lerror_entry_from_usermode_after_swapgs
-END(error_entry)
+SYM_CODE_END(error_entry)
 
-ENTRY(error_exit)
+SYM_CODE_START_LOCAL(error_exit)
 	UNWIND_HINT_REGS
 	DISABLE_INTERRUPTS(CLBR_ANY)
 	TRACE_IRQS_OFF
 	testb	$3, CS(%rsp)
 	jz	retint_kernel
 	jmp	.Lretint_user
-END(error_exit)
+SYM_CODE_END(error_exit)
 
 /*
  * Runs on exception stack.  Xen PV does not go through this path at all,
diff --git a/arch/x86/lib/copy_page_64.S b/arch/x86/lib/copy_page_64.S
index fd2d09afa097..f505870bd93b 100644
--- a/arch/x86/lib/copy_page_64.S
+++ b/arch/x86/lib/copy_page_64.S
@@ -21,7 +21,7 @@ ENTRY(copy_page)
 ENDPROC(copy_page)
 EXPORT_SYMBOL(copy_page)
 
-ENTRY(copy_page_regs)
+SYM_FUNC_START_LOCAL(copy_page_regs)
 	subq	$2*8,	%rsp
 	movq	%rbx,	(%rsp)
 	movq	%r12,	1*8(%rsp)
@@ -86,4 +86,4 @@ ENTRY(copy_page_regs)
 	movq	1*8(%rsp), %r12
 	addq	$2*8, %rsp
 	ret
-ENDPROC(copy_page_regs)
+SYM_FUNC_END(copy_page_regs)
diff --git a/arch/x86/lib/memcpy_64.S b/arch/x86/lib/memcpy_64.S
index 57a64266ba69..3265b21e86c0 100644
--- a/arch/x86/lib/memcpy_64.S
+++ b/arch/x86/lib/memcpy_64.S
@@ -29,7 +29,7 @@
  * rax original destination
  */
 SYM_FUNC_START_ALIAS(__memcpy)
-ENTRY(memcpy)
+SYM_FUNC_START_LOCAL(memcpy)
 	ALTERNATIVE_2 "jmp memcpy_orig", "", X86_FEATURE_REP_GOOD, \
 		      "jmp memcpy_erms", X86_FEATURE_ERMS
 
@@ -41,7 +41,7 @@ ENTRY(memcpy)
 	movl %edx, %ecx
 	rep movsb
 	ret
-ENDPROC(memcpy)
+SYM_FUNC_END(memcpy)
 SYM_FUNC_END_ALIAS(__memcpy)
 EXPORT_SYMBOL(memcpy)
 EXPORT_SYMBOL(__memcpy)
@@ -50,14 +50,14 @@ EXPORT_SYMBOL(__memcpy)
  * memcpy_erms() - enhanced fast string memcpy. This is faster and
  * simpler than memcpy. Use memcpy_erms when possible.
  */
-ENTRY(memcpy_erms)
+SYM_FUNC_START_LOCAL(memcpy_erms)
 	movq %rdi, %rax
 	movq %rdx, %rcx
 	rep movsb
 	ret
-ENDPROC(memcpy_erms)
+SYM_FUNC_END(memcpy_erms)
 
-ENTRY(memcpy_orig)
+SYM_FUNC_START_LOCAL(memcpy_orig)
 	movq %rdi, %rax
 
 	cmpq $0x20, %rdx
@@ -182,7 +182,7 @@ ENTRY(memcpy_orig)
 
 .Lend:
 	retq
-ENDPROC(memcpy_orig)
+SYM_FUNC_END(memcpy_orig)
 
 #ifndef CONFIG_UML
 
diff --git a/arch/x86/lib/memset_64.S b/arch/x86/lib/memset_64.S
index 927ac44d34aa..564abf9ecedb 100644
--- a/arch/x86/lib/memset_64.S
+++ b/arch/x86/lib/memset_64.S
@@ -59,16 +59,16 @@ EXPORT_SYMBOL(__memset)
  *
  * rax   original destination
  */
-ENTRY(memset_erms)
+SYM_FUNC_START_LOCAL(memset_erms)
 	movq %rdi,%r9
 	movb %sil,%al
 	movq %rdx,%rcx
 	rep stosb
 	movq %r9,%rax
 	ret
-ENDPROC(memset_erms)
+SYM_FUNC_END(memset_erms)
 
-ENTRY(memset_orig)
+SYM_FUNC_START_LOCAL(memset_orig)
 	movq %rdi,%r10
 
 	/* expand byte value  */
@@ -139,4 +139,4 @@ ENTRY(memset_orig)
 	subq %r8,%rdx
 	jmp .Lafter_bad_alignment
 .Lfinal:
-ENDPROC(memset_orig)
+SYM_FUNC_END(memset_orig)
diff --git a/arch/x86/platform/efi/efi_thunk_64.S b/arch/x86/platform/efi/efi_thunk_64.S
index 46c58b08739c..d677a7eb2d0a 100644
--- a/arch/x86/platform/efi/efi_thunk_64.S
+++ b/arch/x86/platform/efi/efi_thunk_64.S
@@ -67,7 +67,7 @@ ENDPROC(efi64_thunk)
  *
  * This function must be invoked with a 1:1 mapped stack.
  */
-ENTRY(__efi64_thunk)
+SYM_FUNC_START_LOCAL(__efi64_thunk)
 	movl	%ds, %eax
 	push	%rax
 	movl	%es, %eax
@@ -114,14 +114,14 @@ ENTRY(__efi64_thunk)
 	or	%rcx, %rax
 1:
 	ret
-ENDPROC(__efi64_thunk)
+SYM_FUNC_END(__efi64_thunk)
 
-ENTRY(efi_exit32)
+SYM_FUNC_START_LOCAL(efi_exit32)
 	movq	func_rt_ptr(%rip), %rax
 	push	%rax
 	mov	%rdi, %rax
 	ret
-ENDPROC(efi_exit32)
+SYM_FUNC_END(efi_exit32)
 
 	.code32
 /*
@@ -129,7 +129,7 @@ ENDPROC(efi_exit32)
  *
  * The stack should represent the 32-bit calling convention.
  */
-ENTRY(efi_enter32)
+SYM_FUNC_START_LOCAL(efi_enter32)
 	movl	$__KERNEL_DS, %eax
 	movl	%eax, %ds
 	movl	%eax, %es
@@ -145,7 +145,7 @@ ENTRY(efi_enter32)
 	pushl	%eax
 
 	lret
-ENDPROC(efi_enter32)
+SYM_FUNC_END(efi_enter32)
 
 	.data
 	.balign	8
diff --git a/arch/x86/platform/pvh/head.S b/arch/x86/platform/pvh/head.S
index 4e63480bb223..43b4d864817e 100644
--- a/arch/x86/platform/pvh/head.S
+++ b/arch/x86/platform/pvh/head.S
@@ -50,7 +50,7 @@
 #define PVH_DS_SEL		(PVH_GDT_ENTRY_DS * 8)
 #define PVH_CANARY_SEL		(PVH_GDT_ENTRY_CANARY * 8)
 
-ENTRY(pvh_start_xen)
+SYM_CODE_START_LOCAL(pvh_start_xen)
 	cld
 
 	lgdt (_pa(gdt))
@@ -146,7 +146,7 @@ ENTRY(pvh_start_xen)
 
 	ljmp $PVH_CS_SEL, $_pa(startup_32)
 #endif
-END(pvh_start_xen)
+SYM_CODE_END(pvh_start_xen)
 
 	.section ".init.data","aw"
 	.balign 8
-- 
2.23.0


_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xenproject.org
https://lists.xenproject.org/mailman/listinfo/xen-devel

^ permalink raw reply related	[flat|nested] 110+ messages in thread

* [PATCH v9 21/28] x86/asm/ftrace: Mark function_hook as function
  2019-10-11 11:50 [PATCH v9 00/28] New macros for assembler symbols Jiri Slaby
                   ` (19 preceding siblings ...)
  2019-10-11 11:51   ` [Xen-devel] " Jiri Slaby
@ 2019-10-11 11:51 ` Jiri Slaby
  2019-10-18 16:30   ` [tip: x86/asm] " tip-bot2 for Jiri Slaby
  2019-10-11 11:51   ` [Xen-devel] " Jiri Slaby
                   ` (6 subsequent siblings)
  27 siblings, 1 reply; 110+ messages in thread
From: Jiri Slaby @ 2019-10-11 11:51 UTC (permalink / raw)
  To: bp; +Cc: tglx, mingo, hpa, x86, linux-arch, linux-kernel, Jiri Slaby

Relabel function_hook to be marked really as a function. It is called
from C and has the same expectations towards the stack etc.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: x86@kernel.org
---
 arch/x86/kernel/ftrace_32.S | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/x86/kernel/ftrace_32.S b/arch/x86/kernel/ftrace_32.S
index e0061dc976e1..219be1309c37 100644
--- a/arch/x86/kernel/ftrace_32.S
+++ b/arch/x86/kernel/ftrace_32.S
@@ -21,9 +21,9 @@ EXPORT_SYMBOL(__fentry__)
 # define MCOUNT_FRAME			0	/* using frame = false */
 #endif
 
-ENTRY(function_hook)
+SYM_FUNC_START(function_hook)
 	ret
-END(function_hook)
+SYM_FUNC_END(function_hook)
 
 ENTRY(ftrace_caller)
 
-- 
2.23.0


^ permalink raw reply related	[flat|nested] 110+ messages in thread

* [PATCH v9 22/28] x86_64/asm: Add ENDs to some functions and relabel with SYM_CODE_*
  2019-10-11 11:50 [PATCH v9 00/28] New macros for assembler symbols Jiri Slaby
@ 2019-10-11 11:51   ` Jiri Slaby
  2019-10-11 11:50 ` [PATCH v9 02/28] x86/asm/suspend: Use SYM_DATA for data Jiri Slaby
                     ` (26 subsequent siblings)
  27 siblings, 0 replies; 110+ messages in thread
From: Jiri Slaby @ 2019-10-11 11:51 UTC (permalink / raw)
  To: bp
  Cc: tglx, mingo, hpa, x86, linux-arch, linux-kernel, Jiri Slaby,
	Boris Ostrovsky, Juergen Gross, xen-devel

All these are functions which are invoked from elsewhere, but they are
not typical C functions. So they are annotated using the new
SYM_CODE_START. All these were not balanced with any END, so mark their
ends by SYM_CODE_END appropriately too.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> [xen bits]
Cc: Borislav Petkov <bp@alien8.de>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: Juergen Gross <jgross@suse.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: x86@kernel.org
Cc: xen-devel@lists.xenproject.org
---
 arch/x86/boot/compressed/head_64.S   |  6 ++++--
 arch/x86/platform/olpc/xo1-wakeup.S  |  3 ++-
 arch/x86/power/hibernate_asm_64.S    |  6 ++++--
 arch/x86/realmode/rm/reboot.S        |  3 ++-
 arch/x86/realmode/rm/trampoline_64.S | 10 +++++++---
 arch/x86/realmode/rm/wakeup_asm.S    |  3 ++-
 arch/x86/xen/xen-asm_64.S            |  6 ++++--
 7 files changed, 25 insertions(+), 12 deletions(-)

diff --git a/arch/x86/boot/compressed/head_64.S b/arch/x86/boot/compressed/head_64.S
index ca762ea6a681..55800467ce5c 100644
--- a/arch/x86/boot/compressed/head_64.S
+++ b/arch/x86/boot/compressed/head_64.S
@@ -250,7 +250,7 @@ ENDPROC(efi32_stub_entry)
 
 	.code64
 	.org 0x200
-ENTRY(startup_64)
+SYM_CODE_START(startup_64)
 	/*
 	 * 64bit entry is 0x200 and it is ABI so immutable!
 	 * We come here either from startup_32 or directly from a
@@ -442,6 +442,7 @@ trampoline_return:
  */
 	leaq	.Lrelocated(%rbx), %rax
 	jmp	*%rax
+SYM_CODE_END(startup_64)
 
 #ifdef CONFIG_EFI_STUB
 
@@ -571,7 +572,7 @@ SYM_FUNC_END(.Lrelocated)
  * ECX contains the base address of the trampoline memory.
  * Non zero RDX means trampoline needs to enable 5-level paging.
  */
-ENTRY(trampoline_32bit_src)
+SYM_CODE_START(trampoline_32bit_src)
 	/* Set up data and stack segments */
 	movl	$__KERNEL_DS, %eax
 	movl	%eax, %ds
@@ -634,6 +635,7 @@ ENTRY(trampoline_32bit_src)
 	movl	%eax, %cr0
 
 	lret
+SYM_CODE_END(trampoline_32bit_src)
 
 	.code64
 SYM_FUNC_START_LOCAL_NOALIGN(.Lpaging_enabled)
diff --git a/arch/x86/platform/olpc/xo1-wakeup.S b/arch/x86/platform/olpc/xo1-wakeup.S
index 5fee3a2c2fd4..75f4faff8468 100644
--- a/arch/x86/platform/olpc/xo1-wakeup.S
+++ b/arch/x86/platform/olpc/xo1-wakeup.S
@@ -90,7 +90,7 @@ restore_registers:
 
 	ret
 
-ENTRY(do_olpc_suspend_lowlevel)
+SYM_CODE_START(do_olpc_suspend_lowlevel)
 	call	save_processor_state
 	call	save_registers
 
@@ -110,6 +110,7 @@ ret_point:
 	call	restore_registers
 	call	restore_processor_state
 	ret
+SYM_CODE_END(do_olpc_suspend_lowlevel)
 
 .data
 saved_gdt:             .long   0,0
diff --git a/arch/x86/power/hibernate_asm_64.S b/arch/x86/power/hibernate_asm_64.S
index a4d5eb0a7ece..4057cd5af7e2 100644
--- a/arch/x86/power/hibernate_asm_64.S
+++ b/arch/x86/power/hibernate_asm_64.S
@@ -52,7 +52,7 @@ ENTRY(swsusp_arch_suspend)
 	ret
 ENDPROC(swsusp_arch_suspend)
 
-ENTRY(restore_image)
+SYM_CODE_START(restore_image)
 	/* prepare to jump to the image kernel */
 	movq	restore_jump_address(%rip), %r8
 	movq	restore_cr3(%rip), %r9
@@ -67,9 +67,10 @@ ENTRY(restore_image)
 	/* jump to relocated restore code */
 	movq	relocated_restore_code(%rip), %rcx
 	jmpq	*%rcx
+SYM_CODE_END(restore_image)
 
 	/* code below has been relocated to a safe page */
-ENTRY(core_restore_code)
+SYM_CODE_START(core_restore_code)
 	/* switch to temporary page tables */
 	movq	%rax, %cr3
 	/* flush TLB */
@@ -97,6 +98,7 @@ ENTRY(core_restore_code)
 .Ldone:
 	/* jump to the restore_registers address from the image header */
 	jmpq	*%r8
+SYM_CODE_END(core_restore_code)
 
 	 /* code below belongs to the image kernel */
 	.align PAGE_SIZE
diff --git a/arch/x86/realmode/rm/reboot.S b/arch/x86/realmode/rm/reboot.S
index 424826afb501..f10515b10e0a 100644
--- a/arch/x86/realmode/rm/reboot.S
+++ b/arch/x86/realmode/rm/reboot.S
@@ -19,7 +19,7 @@
  */
 	.section ".text32", "ax"
 	.code32
-ENTRY(machine_real_restart_asm)
+SYM_CODE_START(machine_real_restart_asm)
 
 #ifdef CONFIG_X86_64
 	/* Switch to trampoline GDT as it is guaranteed < 4 GiB */
@@ -63,6 +63,7 @@ SYM_INNER_LABEL(machine_real_restart_paging_off, SYM_L_GLOBAL)
 	movl	%ecx, %gs
 	movl	%ecx, %ss
 	ljmpw	$8, $1f
+SYM_CODE_END(machine_real_restart_asm)
 
 /*
  * This is 16-bit protected mode code to disable paging and the cache,
diff --git a/arch/x86/realmode/rm/trampoline_64.S b/arch/x86/realmode/rm/trampoline_64.S
index c1aeab1dae25..251758ed7443 100644
--- a/arch/x86/realmode/rm/trampoline_64.S
+++ b/arch/x86/realmode/rm/trampoline_64.S
@@ -38,7 +38,7 @@
 	.code16
 
 	.balign	PAGE_SIZE
-ENTRY(trampoline_start)
+SYM_CODE_START(trampoline_start)
 	cli			# We should be safe anyway
 	wbinvd
 
@@ -78,12 +78,14 @@ ENTRY(trampoline_start)
 no_longmode:
 	hlt
 	jmp no_longmode
+SYM_CODE_END(trampoline_start)
+
 #include "../kernel/verify_cpu.S"
 
 	.section ".text32","ax"
 	.code32
 	.balign 4
-ENTRY(startup_32)
+SYM_CODE_START(startup_32)
 	movl	%edx, %ss
 	addl	$pa_real_mode_base, %esp
 	movl	%edx, %ds
@@ -137,13 +139,15 @@ ENTRY(startup_32)
 	 * the new gdt/idt that has __KERNEL_CS with CS.L = 1.
 	 */
 	ljmpl	$__KERNEL_CS, $pa_startup_64
+SYM_CODE_END(startup_32)
 
 	.section ".text64","ax"
 	.code64
 	.balign 4
-ENTRY(startup_64)
+SYM_CODE_START(startup_64)
 	# Now jump into the kernel using virtual addresses
 	jmpq	*tr_start(%rip)
+SYM_CODE_END(startup_64)
 
 	.section ".rodata","a"
 	# Duplicate the global descriptor table
diff --git a/arch/x86/realmode/rm/wakeup_asm.S b/arch/x86/realmode/rm/wakeup_asm.S
index 01092d665bc2..02d0ba16ae33 100644
--- a/arch/x86/realmode/rm/wakeup_asm.S
+++ b/arch/x86/realmode/rm/wakeup_asm.S
@@ -37,7 +37,7 @@ SYM_DATA_END(wakeup_header)
 	.code16
 
 	.balign	16
-ENTRY(wakeup_start)
+SYM_CODE_START(wakeup_start)
 	cli
 	cld
 
@@ -135,6 +135,7 @@ ENTRY(wakeup_start)
 #else
 	jmp	trampoline_start
 #endif
+SYM_CODE_END(wakeup_start)
 
 bogus_real_magic:
 1:
diff --git a/arch/x86/xen/xen-asm_64.S b/arch/x86/xen/xen-asm_64.S
index 45c1249f370d..c209c70fc5e4 100644
--- a/arch/x86/xen/xen-asm_64.S
+++ b/arch/x86/xen/xen-asm_64.S
@@ -85,11 +85,12 @@ hypercall_iret = hypercall_page + __HYPERVISOR_iret * 32
  *	r11		}<-- pushed by hypercall page
  * rsp->rax		}
  */
-ENTRY(xen_iret)
+SYM_CODE_START(xen_iret)
 	pushq $0
 	jmp hypercall_iret
+SYM_CODE_END(xen_iret)
 
-ENTRY(xen_sysret64)
+SYM_CODE_START(xen_sysret64)
 	/*
 	 * We're already on the usermode stack at this point, but
 	 * still with the kernel gs, so we can easily switch back.
@@ -107,6 +108,7 @@ ENTRY(xen_sysret64)
 
 	pushq $VGCF_in_syscall
 	jmp hypercall_iret
+SYM_CODE_END(xen_sysret64)
 
 /*
  * Xen handles syscall callbacks much like ordinary exceptions, which
-- 
2.23.0


^ permalink raw reply related	[flat|nested] 110+ messages in thread

* [Xen-devel] [PATCH v9 22/28] x86_64/asm: Add ENDs to some functions and relabel with SYM_CODE_*
@ 2019-10-11 11:51   ` Jiri Slaby
  0 siblings, 0 replies; 110+ messages in thread
From: Jiri Slaby @ 2019-10-11 11:51 UTC (permalink / raw)
  To: bp
  Cc: linux-arch, Juergen Gross, x86, linux-kernel, mingo, hpa,
	xen-devel, tglx, Jiri Slaby, Boris Ostrovsky

All these are functions which are invoked from elsewhere, but they are
not typical C functions. So they are annotated using the new
SYM_CODE_START. All these were not balanced with any END, so mark their
ends by SYM_CODE_END appropriately too.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> [xen bits]
Cc: Borislav Petkov <bp@alien8.de>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: Juergen Gross <jgross@suse.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: x86@kernel.org
Cc: xen-devel@lists.xenproject.org
---
 arch/x86/boot/compressed/head_64.S   |  6 ++++--
 arch/x86/platform/olpc/xo1-wakeup.S  |  3 ++-
 arch/x86/power/hibernate_asm_64.S    |  6 ++++--
 arch/x86/realmode/rm/reboot.S        |  3 ++-
 arch/x86/realmode/rm/trampoline_64.S | 10 +++++++---
 arch/x86/realmode/rm/wakeup_asm.S    |  3 ++-
 arch/x86/xen/xen-asm_64.S            |  6 ++++--
 7 files changed, 25 insertions(+), 12 deletions(-)

diff --git a/arch/x86/boot/compressed/head_64.S b/arch/x86/boot/compressed/head_64.S
index ca762ea6a681..55800467ce5c 100644
--- a/arch/x86/boot/compressed/head_64.S
+++ b/arch/x86/boot/compressed/head_64.S
@@ -250,7 +250,7 @@ ENDPROC(efi32_stub_entry)
 
 	.code64
 	.org 0x200
-ENTRY(startup_64)
+SYM_CODE_START(startup_64)
 	/*
 	 * 64bit entry is 0x200 and it is ABI so immutable!
 	 * We come here either from startup_32 or directly from a
@@ -442,6 +442,7 @@ trampoline_return:
  */
 	leaq	.Lrelocated(%rbx), %rax
 	jmp	*%rax
+SYM_CODE_END(startup_64)
 
 #ifdef CONFIG_EFI_STUB
 
@@ -571,7 +572,7 @@ SYM_FUNC_END(.Lrelocated)
  * ECX contains the base address of the trampoline memory.
  * Non zero RDX means trampoline needs to enable 5-level paging.
  */
-ENTRY(trampoline_32bit_src)
+SYM_CODE_START(trampoline_32bit_src)
 	/* Set up data and stack segments */
 	movl	$__KERNEL_DS, %eax
 	movl	%eax, %ds
@@ -634,6 +635,7 @@ ENTRY(trampoline_32bit_src)
 	movl	%eax, %cr0
 
 	lret
+SYM_CODE_END(trampoline_32bit_src)
 
 	.code64
 SYM_FUNC_START_LOCAL_NOALIGN(.Lpaging_enabled)
diff --git a/arch/x86/platform/olpc/xo1-wakeup.S b/arch/x86/platform/olpc/xo1-wakeup.S
index 5fee3a2c2fd4..75f4faff8468 100644
--- a/arch/x86/platform/olpc/xo1-wakeup.S
+++ b/arch/x86/platform/olpc/xo1-wakeup.S
@@ -90,7 +90,7 @@ restore_registers:
 
 	ret
 
-ENTRY(do_olpc_suspend_lowlevel)
+SYM_CODE_START(do_olpc_suspend_lowlevel)
 	call	save_processor_state
 	call	save_registers
 
@@ -110,6 +110,7 @@ ret_point:
 	call	restore_registers
 	call	restore_processor_state
 	ret
+SYM_CODE_END(do_olpc_suspend_lowlevel)
 
 .data
 saved_gdt:             .long   0,0
diff --git a/arch/x86/power/hibernate_asm_64.S b/arch/x86/power/hibernate_asm_64.S
index a4d5eb0a7ece..4057cd5af7e2 100644
--- a/arch/x86/power/hibernate_asm_64.S
+++ b/arch/x86/power/hibernate_asm_64.S
@@ -52,7 +52,7 @@ ENTRY(swsusp_arch_suspend)
 	ret
 ENDPROC(swsusp_arch_suspend)
 
-ENTRY(restore_image)
+SYM_CODE_START(restore_image)
 	/* prepare to jump to the image kernel */
 	movq	restore_jump_address(%rip), %r8
 	movq	restore_cr3(%rip), %r9
@@ -67,9 +67,10 @@ ENTRY(restore_image)
 	/* jump to relocated restore code */
 	movq	relocated_restore_code(%rip), %rcx
 	jmpq	*%rcx
+SYM_CODE_END(restore_image)
 
 	/* code below has been relocated to a safe page */
-ENTRY(core_restore_code)
+SYM_CODE_START(core_restore_code)
 	/* switch to temporary page tables */
 	movq	%rax, %cr3
 	/* flush TLB */
@@ -97,6 +98,7 @@ ENTRY(core_restore_code)
 .Ldone:
 	/* jump to the restore_registers address from the image header */
 	jmpq	*%r8
+SYM_CODE_END(core_restore_code)
 
 	 /* code below belongs to the image kernel */
 	.align PAGE_SIZE
diff --git a/arch/x86/realmode/rm/reboot.S b/arch/x86/realmode/rm/reboot.S
index 424826afb501..f10515b10e0a 100644
--- a/arch/x86/realmode/rm/reboot.S
+++ b/arch/x86/realmode/rm/reboot.S
@@ -19,7 +19,7 @@
  */
 	.section ".text32", "ax"
 	.code32
-ENTRY(machine_real_restart_asm)
+SYM_CODE_START(machine_real_restart_asm)
 
 #ifdef CONFIG_X86_64
 	/* Switch to trampoline GDT as it is guaranteed < 4 GiB */
@@ -63,6 +63,7 @@ SYM_INNER_LABEL(machine_real_restart_paging_off, SYM_L_GLOBAL)
 	movl	%ecx, %gs
 	movl	%ecx, %ss
 	ljmpw	$8, $1f
+SYM_CODE_END(machine_real_restart_asm)
 
 /*
  * This is 16-bit protected mode code to disable paging and the cache,
diff --git a/arch/x86/realmode/rm/trampoline_64.S b/arch/x86/realmode/rm/trampoline_64.S
index c1aeab1dae25..251758ed7443 100644
--- a/arch/x86/realmode/rm/trampoline_64.S
+++ b/arch/x86/realmode/rm/trampoline_64.S
@@ -38,7 +38,7 @@
 	.code16
 
 	.balign	PAGE_SIZE
-ENTRY(trampoline_start)
+SYM_CODE_START(trampoline_start)
 	cli			# We should be safe anyway
 	wbinvd
 
@@ -78,12 +78,14 @@ ENTRY(trampoline_start)
 no_longmode:
 	hlt
 	jmp no_longmode
+SYM_CODE_END(trampoline_start)
+
 #include "../kernel/verify_cpu.S"
 
 	.section ".text32","ax"
 	.code32
 	.balign 4
-ENTRY(startup_32)
+SYM_CODE_START(startup_32)
 	movl	%edx, %ss
 	addl	$pa_real_mode_base, %esp
 	movl	%edx, %ds
@@ -137,13 +139,15 @@ ENTRY(startup_32)
 	 * the new gdt/idt that has __KERNEL_CS with CS.L = 1.
 	 */
 	ljmpl	$__KERNEL_CS, $pa_startup_64
+SYM_CODE_END(startup_32)
 
 	.section ".text64","ax"
 	.code64
 	.balign 4
-ENTRY(startup_64)
+SYM_CODE_START(startup_64)
 	# Now jump into the kernel using virtual addresses
 	jmpq	*tr_start(%rip)
+SYM_CODE_END(startup_64)
 
 	.section ".rodata","a"
 	# Duplicate the global descriptor table
diff --git a/arch/x86/realmode/rm/wakeup_asm.S b/arch/x86/realmode/rm/wakeup_asm.S
index 01092d665bc2..02d0ba16ae33 100644
--- a/arch/x86/realmode/rm/wakeup_asm.S
+++ b/arch/x86/realmode/rm/wakeup_asm.S
@@ -37,7 +37,7 @@ SYM_DATA_END(wakeup_header)
 	.code16
 
 	.balign	16
-ENTRY(wakeup_start)
+SYM_CODE_START(wakeup_start)
 	cli
 	cld
 
@@ -135,6 +135,7 @@ ENTRY(wakeup_start)
 #else
 	jmp	trampoline_start
 #endif
+SYM_CODE_END(wakeup_start)
 
 bogus_real_magic:
 1:
diff --git a/arch/x86/xen/xen-asm_64.S b/arch/x86/xen/xen-asm_64.S
index 45c1249f370d..c209c70fc5e4 100644
--- a/arch/x86/xen/xen-asm_64.S
+++ b/arch/x86/xen/xen-asm_64.S
@@ -85,11 +85,12 @@ hypercall_iret = hypercall_page + __HYPERVISOR_iret * 32
  *	r11		}<-- pushed by hypercall page
  * rsp->rax		}
  */
-ENTRY(xen_iret)
+SYM_CODE_START(xen_iret)
 	pushq $0
 	jmp hypercall_iret
+SYM_CODE_END(xen_iret)
 
-ENTRY(xen_sysret64)
+SYM_CODE_START(xen_sysret64)
 	/*
 	 * We're already on the usermode stack at this point, but
 	 * still with the kernel gs, so we can easily switch back.
@@ -107,6 +108,7 @@ ENTRY(xen_sysret64)
 
 	pushq $VGCF_in_syscall
 	jmp hypercall_iret
+SYM_CODE_END(xen_sysret64)
 
 /*
  * Xen handles syscall callbacks much like ordinary exceptions, which
-- 
2.23.0


_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xenproject.org
https://lists.xenproject.org/mailman/listinfo/xen-devel

^ permalink raw reply related	[flat|nested] 110+ messages in thread

* [PATCH v9 23/28] x86_64/asm: Change all ENTRY+END to SYM_CODE_*
  2019-10-11 11:50 [PATCH v9 00/28] New macros for assembler symbols Jiri Slaby
@ 2019-10-11 11:51   ` Jiri Slaby
  2019-10-11 11:50 ` [PATCH v9 02/28] x86/asm/suspend: Use SYM_DATA for data Jiri Slaby
                     ` (26 subsequent siblings)
  27 siblings, 0 replies; 110+ messages in thread
From: Jiri Slaby @ 2019-10-11 11:51 UTC (permalink / raw)
  To: bp
  Cc: tglx, mingo, hpa, x86, linux-arch, linux-kernel, Jiri Slaby,
	Boris Ostrovsky, Juergen Gross, xen-devel

Here, all assembly code which is marked using END (and not ENDPROC) is
changed. All these are switched to appropriate new markings
SYM_CODE_START and SYM_CODE_END.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> [xen bits]
Cc: Borislav Petkov <bp@alien8.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: x86@kernel.org
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: Juergen Gross <jgross@suse.com>
Cc: xen-devel@lists.xenproject.org
---
 arch/x86/entry/entry_64.S        | 52 ++++++++++++++++----------------
 arch/x86/entry/entry_64_compat.S |  8 ++---
 arch/x86/kernel/ftrace_64.S      |  4 +--
 arch/x86/kernel/head_64.S        | 12 ++++----
 arch/x86/xen/xen-asm_64.S        |  8 ++---
 arch/x86/xen/xen-head.S          |  8 ++---
 6 files changed, 46 insertions(+), 46 deletions(-)

diff --git a/arch/x86/entry/entry_64.S b/arch/x86/entry/entry_64.S
index 1568da63bf16..13e4fe378e5a 100644
--- a/arch/x86/entry/entry_64.S
+++ b/arch/x86/entry/entry_64.S
@@ -46,11 +46,11 @@
 .section .entry.text, "ax"
 
 #ifdef CONFIG_PARAVIRT
-ENTRY(native_usergs_sysret64)
+SYM_CODE_START(native_usergs_sysret64)
 	UNWIND_HINT_EMPTY
 	swapgs
 	sysretq
-END(native_usergs_sysret64)
+SYM_CODE_END(native_usergs_sysret64)
 #endif /* CONFIG_PARAVIRT */
 
 .macro TRACE_IRQS_FLAGS flags:req
@@ -142,7 +142,7 @@ END(native_usergs_sysret64)
  * with them due to bugs in both AMD and Intel CPUs.
  */
 
-ENTRY(entry_SYSCALL_64)
+SYM_CODE_START(entry_SYSCALL_64)
 	UNWIND_HINT_EMPTY
 	/*
 	 * Interrupts are off on entry.
@@ -273,13 +273,13 @@ syscall_return_via_sysret:
 	popq	%rdi
 	popq	%rsp
 	USERGS_SYSRET64
-END(entry_SYSCALL_64)
+SYM_CODE_END(entry_SYSCALL_64)
 
 /*
  * %rdi: prev task
  * %rsi: next task
  */
-ENTRY(__switch_to_asm)
+SYM_CODE_START(__switch_to_asm)
 	UNWIND_HINT_FUNC
 	/*
 	 * Save callee-saved registers
@@ -321,7 +321,7 @@ ENTRY(__switch_to_asm)
 	popq	%rbp
 
 	jmp	__switch_to
-END(__switch_to_asm)
+SYM_CODE_END(__switch_to_asm)
 
 /*
  * A newly forked process directly context switches into this address.
@@ -330,7 +330,7 @@ END(__switch_to_asm)
  * rbx: kernel thread func (NULL for user thread)
  * r12: kernel thread arg
  */
-ENTRY(ret_from_fork)
+SYM_CODE_START(ret_from_fork)
 	UNWIND_HINT_EMPTY
 	movq	%rax, %rdi
 	call	schedule_tail			/* rdi: 'prev' task parameter */
@@ -357,14 +357,14 @@ ENTRY(ret_from_fork)
 	 */
 	movq	$0, RAX(%rsp)
 	jmp	2b
-END(ret_from_fork)
+SYM_CODE_END(ret_from_fork)
 
 /*
  * Build the entry stubs with some assembler magic.
  * We pack 1 stub into every 8-byte block.
  */
 	.align 8
-ENTRY(irq_entries_start)
+SYM_CODE_START(irq_entries_start)
     vector=FIRST_EXTERNAL_VECTOR
     .rept (FIRST_SYSTEM_VECTOR - FIRST_EXTERNAL_VECTOR)
 	UNWIND_HINT_IRET_REGS
@@ -373,10 +373,10 @@ ENTRY(irq_entries_start)
 	.align	8
 	vector=vector+1
     .endr
-END(irq_entries_start)
+SYM_CODE_END(irq_entries_start)
 
 	.align 8
-ENTRY(spurious_entries_start)
+SYM_CODE_START(spurious_entries_start)
     vector=FIRST_SYSTEM_VECTOR
     .rept (NR_VECTORS - FIRST_SYSTEM_VECTOR)
 	UNWIND_HINT_IRET_REGS
@@ -385,7 +385,7 @@ ENTRY(spurious_entries_start)
 	.align	8
 	vector=vector+1
     .endr
-END(spurious_entries_start)
+SYM_CODE_END(spurious_entries_start)
 
 .macro DEBUG_ENTRY_ASSERT_IRQS_OFF
 #ifdef CONFIG_DEBUG_ENTRY
@@ -511,7 +511,7 @@ END(spurious_entries_start)
  * | return address					|
  * +----------------------------------------------------+
  */
-ENTRY(interrupt_entry)
+SYM_CODE_START(interrupt_entry)
 	UNWIND_HINT_FUNC
 	ASM_CLAC
 	cld
@@ -579,7 +579,7 @@ ENTRY(interrupt_entry)
 	TRACE_IRQS_OFF
 
 	ret
-END(interrupt_entry)
+SYM_CODE_END(interrupt_entry)
 _ASM_NOKPROBE(interrupt_entry)
 
 
@@ -795,7 +795,7 @@ _ASM_NOKPROBE(common_interrupt)
  * APIC interrupts.
  */
 .macro apicinterrupt3 num sym do_sym
-ENTRY(\sym)
+SYM_CODE_START(\sym)
 	UNWIND_HINT_IRET_REGS
 	pushq	$~(\num)
 .Lcommon_\sym:
@@ -803,7 +803,7 @@ ENTRY(\sym)
 	UNWIND_HINT_REGS indirect=1
 	call	\do_sym	/* rdi points to pt_regs */
 	jmp	ret_from_intr
-END(\sym)
+SYM_CODE_END(\sym)
 _ASM_NOKPROBE(\sym)
 .endm
 
@@ -968,7 +968,7 @@ apicinterrupt IRQ_WORK_VECTOR			irq_work_interrupt		smp_irq_work_interrupt
  * #DF: if the thread stack is somehow unusable, we'll still get a useful OOPS.
  */
 .macro idtentry sym do_sym has_error_code:req paranoid=0 shift_ist=-1 ist_offset=0 create_gap=0 read_cr2=0
-ENTRY(\sym)
+SYM_CODE_START(\sym)
 	UNWIND_HINT_IRET_REGS offset=\has_error_code*8
 
 	/* Sanity check */
@@ -1018,7 +1018,7 @@ ENTRY(\sym)
 	.endif
 
 _ASM_NOKPROBE(\sym)
-END(\sym)
+SYM_CODE_END(\sym)
 .endm
 
 idtentry divide_error			do_divide_error			has_error_code=0
@@ -1135,7 +1135,7 @@ SYM_CODE_END(xen_do_hypervisor_callback)
  * We distinguish between categories by comparing each saved segment register
  * with its current contents: any discrepancy means we in category 1.
  */
-ENTRY(xen_failsafe_callback)
+SYM_CODE_START(xen_failsafe_callback)
 	UNWIND_HINT_EMPTY
 	movl	%ds, %ecx
 	cmpw	%cx, 0x10(%rsp)
@@ -1165,7 +1165,7 @@ ENTRY(xen_failsafe_callback)
 	PUSH_AND_CLEAR_REGS
 	ENCODE_FRAME_POINTER
 	jmp	error_exit
-END(xen_failsafe_callback)
+SYM_CODE_END(xen_failsafe_callback)
 #endif /* CONFIG_XEN_PV */
 
 #ifdef CONFIG_XEN_PVHVM
@@ -1384,7 +1384,7 @@ SYM_CODE_END(error_exit)
  *	%r14: Used to save/restore the CR3 of the interrupted context
  *	      when PAGE_TABLE_ISOLATION is in use.  Do not clobber.
  */
-ENTRY(nmi)
+SYM_CODE_START(nmi)
 	UNWIND_HINT_IRET_REGS
 
 	/*
@@ -1719,21 +1719,21 @@ nmi_restore:
 	 * about espfix64 on the way back to kernel mode.
 	 */
 	iretq
-END(nmi)
+SYM_CODE_END(nmi)
 
 #ifndef CONFIG_IA32_EMULATION
 /*
  * This handles SYSCALL from 32-bit code.  There is no way to program
  * MSRs to fully disable 32-bit SYSCALL.
  */
-ENTRY(ignore_sysret)
+SYM_CODE_START(ignore_sysret)
 	UNWIND_HINT_EMPTY
 	mov	$-ENOSYS, %eax
 	sysret
-END(ignore_sysret)
+SYM_CODE_END(ignore_sysret)
 #endif
 
-ENTRY(rewind_stack_do_exit)
+SYM_CODE_START(rewind_stack_do_exit)
 	UNWIND_HINT_FUNC
 	/* Prevent any naive code from trying to unwind to our caller. */
 	xorl	%ebp, %ebp
@@ -1743,4 +1743,4 @@ ENTRY(rewind_stack_do_exit)
 	UNWIND_HINT_FUNC sp_offset=PTREGS_SIZE
 
 	call	do_exit
-END(rewind_stack_do_exit)
+SYM_CODE_END(rewind_stack_do_exit)
diff --git a/arch/x86/entry/entry_64_compat.S b/arch/x86/entry/entry_64_compat.S
index 5c7e71669239..da296435676e 100644
--- a/arch/x86/entry/entry_64_compat.S
+++ b/arch/x86/entry/entry_64_compat.S
@@ -196,7 +196,7 @@ ENDPROC(entry_SYSENTER_compat)
  * esp  user stack
  * 0(%esp) arg6
  */
-ENTRY(entry_SYSCALL_compat)
+SYM_CODE_START(entry_SYSCALL_compat)
 	/* Interrupts are off on entry. */
 	swapgs
 
@@ -311,7 +311,7 @@ sysret32_from_system_call:
 	xorl	%r10d, %r10d
 	swapgs
 	sysretl
-END(entry_SYSCALL_compat)
+SYM_CODE_END(entry_SYSCALL_compat)
 
 /*
  * 32-bit legacy system call entry.
@@ -339,7 +339,7 @@ END(entry_SYSCALL_compat)
  * edi  arg5
  * ebp  arg6
  */
-ENTRY(entry_INT80_compat)
+SYM_CODE_START(entry_INT80_compat)
 	/*
 	 * Interrupts are off on entry.
 	 */
@@ -416,4 +416,4 @@ ENTRY(entry_INT80_compat)
 	/* Go back to user mode. */
 	TRACE_IRQS_ON
 	jmp	swapgs_restore_regs_and_return_to_usermode
-END(entry_INT80_compat)
+SYM_CODE_END(entry_INT80_compat)
diff --git a/arch/x86/kernel/ftrace_64.S b/arch/x86/kernel/ftrace_64.S
index 3afaaf555637..60f894b018e0 100644
--- a/arch/x86/kernel/ftrace_64.S
+++ b/arch/x86/kernel/ftrace_64.S
@@ -296,7 +296,7 @@ ENTRY(ftrace_graph_caller)
 	retq
 ENDPROC(ftrace_graph_caller)
 
-ENTRY(return_to_handler)
+SYM_CODE_START(return_to_handler)
 	UNWIND_HINT_EMPTY
 	subq  $24, %rsp
 
@@ -312,5 +312,5 @@ ENTRY(return_to_handler)
 	movq (%rsp), %rax
 	addq $24, %rsp
 	JMP_NOSPEC %rdi
-END(return_to_handler)
+SYM_CODE_END(return_to_handler)
 #endif
diff --git a/arch/x86/kernel/head_64.S b/arch/x86/kernel/head_64.S
index 10f306e31244..4bbc770af632 100644
--- a/arch/x86/kernel/head_64.S
+++ b/arch/x86/kernel/head_64.S
@@ -91,7 +91,7 @@ SYM_CODE_START_NOALIGN(startup_64)
 	jmp 1f
 SYM_CODE_END(startup_64)
 
-ENTRY(secondary_startup_64)
+SYM_CODE_START(secondary_startup_64)
 	UNWIND_HINT_EMPTY
 	/*
 	 * At this point the CPU runs in 64bit mode CS.L = 1 CS.D = 0,
@@ -241,7 +241,7 @@ ENTRY(secondary_startup_64)
 	pushq	%rax		# target address in negative space
 	lretq
 .Lafter_lret:
-END(secondary_startup_64)
+SYM_CODE_END(secondary_startup_64)
 
 #include "verify_cpu.S"
 
@@ -251,11 +251,11 @@ END(secondary_startup_64)
  * up already except stack. We just set up stack here. Then call
  * start_secondary() via .Ljump_to_C_code.
  */
-ENTRY(start_cpu0)
+SYM_CODE_START(start_cpu0)
 	UNWIND_HINT_EMPTY
 	movq	initial_stack(%rip), %rsp
 	jmp	.Ljump_to_C_code
-END(start_cpu0)
+SYM_CODE_END(start_cpu0)
 #endif
 
 	/* Both SMP bootup and ACPI suspend change these variables */
@@ -272,7 +272,7 @@ SYM_DATA(initial_stack, .quad init_thread_union + THREAD_SIZE - SIZEOF_PTREGS)
 	__FINITDATA
 
 	__INIT
-ENTRY(early_idt_handler_array)
+SYM_CODE_START(early_idt_handler_array)
 	i = 0
 	.rept NUM_EXCEPTION_VECTORS
 	.if ((EXCEPTION_ERRCODE_MASK >> i) & 1) == 0
@@ -288,7 +288,7 @@ ENTRY(early_idt_handler_array)
 	.fill early_idt_handler_array + i*EARLY_IDT_HANDLER_SIZE - ., 1, 0xcc
 	.endr
 	UNWIND_HINT_IRET_REGS offset=16
-END(early_idt_handler_array)
+SYM_CODE_END(early_idt_handler_array)
 
 SYM_CODE_START_LOCAL(early_idt_handler_common)
 	/*
diff --git a/arch/x86/xen/xen-asm_64.S b/arch/x86/xen/xen-asm_64.S
index c209c70fc5e4..0060120f51dd 100644
--- a/arch/x86/xen/xen-asm_64.S
+++ b/arch/x86/xen/xen-asm_64.S
@@ -20,11 +20,11 @@
 #include <linux/linkage.h>
 
 .macro xen_pv_trap name
-ENTRY(xen_\name)
+SYM_CODE_START(xen_\name)
 	pop %rcx
 	pop %r11
 	jmp  \name
-END(xen_\name)
+SYM_CODE_END(xen_\name)
 _ASM_NOKPROBE(xen_\name)
 .endm
 
@@ -57,7 +57,7 @@ xen_pv_trap entry_INT80_compat
 xen_pv_trap hypervisor_callback
 
 	__INIT
-ENTRY(xen_early_idt_handler_array)
+SYM_CODE_START(xen_early_idt_handler_array)
 	i = 0
 	.rept NUM_EXCEPTION_VECTORS
 	pop %rcx
@@ -66,7 +66,7 @@ ENTRY(xen_early_idt_handler_array)
 	i = i + 1
 	.fill xen_early_idt_handler_array + i*XEN_EARLY_IDT_HANDLER_SIZE - ., 1, 0xcc
 	.endr
-END(xen_early_idt_handler_array)
+SYM_CODE_END(xen_early_idt_handler_array)
 	__FINIT
 
 hypercall_iret = hypercall_page + __HYPERVISOR_iret * 32
diff --git a/arch/x86/xen/xen-head.S b/arch/x86/xen/xen-head.S
index c1d8b90aa4e2..1d0cee3163e4 100644
--- a/arch/x86/xen/xen-head.S
+++ b/arch/x86/xen/xen-head.S
@@ -22,7 +22,7 @@
 
 #ifdef CONFIG_XEN_PV
 	__INIT
-ENTRY(startup_xen)
+SYM_CODE_START(startup_xen)
 	UNWIND_HINT_EMPTY
 	cld
 
@@ -52,13 +52,13 @@ ENTRY(startup_xen)
 #endif
 
 	jmp xen_start_kernel
-END(startup_xen)
+SYM_CODE_END(startup_xen)
 	__FINIT
 #endif
 
 .pushsection .text
 	.balign PAGE_SIZE
-ENTRY(hypercall_page)
+SYM_CODE_START(hypercall_page)
 	.rept (PAGE_SIZE / 32)
 		UNWIND_HINT_EMPTY
 		.skip 32
@@ -69,7 +69,7 @@ ENTRY(hypercall_page)
 	.type xen_hypercall_##n, @function; .size xen_hypercall_##n, 32
 #include <asm/xen-hypercalls.h>
 #undef HYPERCALL
-END(hypercall_page)
+SYM_CODE_END(hypercall_page)
 .popsection
 
 	ELFNOTE(Xen, XEN_ELFNOTE_GUEST_OS,       .asciz "linux")
-- 
2.23.0


^ permalink raw reply related	[flat|nested] 110+ messages in thread

* [Xen-devel] [PATCH v9 23/28] x86_64/asm: Change all ENTRY+END to SYM_CODE_*
@ 2019-10-11 11:51   ` Jiri Slaby
  0 siblings, 0 replies; 110+ messages in thread
From: Jiri Slaby @ 2019-10-11 11:51 UTC (permalink / raw)
  To: bp
  Cc: linux-arch, Juergen Gross, x86, linux-kernel, mingo, hpa,
	xen-devel, tglx, Jiri Slaby, Boris Ostrovsky

Here, all assembly code which is marked using END (and not ENDPROC) is
changed. All these are switched to appropriate new markings
SYM_CODE_START and SYM_CODE_END.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> [xen bits]
Cc: Borislav Petkov <bp@alien8.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: x86@kernel.org
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: Juergen Gross <jgross@suse.com>
Cc: xen-devel@lists.xenproject.org
---
 arch/x86/entry/entry_64.S        | 52 ++++++++++++++++----------------
 arch/x86/entry/entry_64_compat.S |  8 ++---
 arch/x86/kernel/ftrace_64.S      |  4 +--
 arch/x86/kernel/head_64.S        | 12 ++++----
 arch/x86/xen/xen-asm_64.S        |  8 ++---
 arch/x86/xen/xen-head.S          |  8 ++---
 6 files changed, 46 insertions(+), 46 deletions(-)

diff --git a/arch/x86/entry/entry_64.S b/arch/x86/entry/entry_64.S
index 1568da63bf16..13e4fe378e5a 100644
--- a/arch/x86/entry/entry_64.S
+++ b/arch/x86/entry/entry_64.S
@@ -46,11 +46,11 @@
 .section .entry.text, "ax"
 
 #ifdef CONFIG_PARAVIRT
-ENTRY(native_usergs_sysret64)
+SYM_CODE_START(native_usergs_sysret64)
 	UNWIND_HINT_EMPTY
 	swapgs
 	sysretq
-END(native_usergs_sysret64)
+SYM_CODE_END(native_usergs_sysret64)
 #endif /* CONFIG_PARAVIRT */
 
 .macro TRACE_IRQS_FLAGS flags:req
@@ -142,7 +142,7 @@ END(native_usergs_sysret64)
  * with them due to bugs in both AMD and Intel CPUs.
  */
 
-ENTRY(entry_SYSCALL_64)
+SYM_CODE_START(entry_SYSCALL_64)
 	UNWIND_HINT_EMPTY
 	/*
 	 * Interrupts are off on entry.
@@ -273,13 +273,13 @@ syscall_return_via_sysret:
 	popq	%rdi
 	popq	%rsp
 	USERGS_SYSRET64
-END(entry_SYSCALL_64)
+SYM_CODE_END(entry_SYSCALL_64)
 
 /*
  * %rdi: prev task
  * %rsi: next task
  */
-ENTRY(__switch_to_asm)
+SYM_CODE_START(__switch_to_asm)
 	UNWIND_HINT_FUNC
 	/*
 	 * Save callee-saved registers
@@ -321,7 +321,7 @@ ENTRY(__switch_to_asm)
 	popq	%rbp
 
 	jmp	__switch_to
-END(__switch_to_asm)
+SYM_CODE_END(__switch_to_asm)
 
 /*
  * A newly forked process directly context switches into this address.
@@ -330,7 +330,7 @@ END(__switch_to_asm)
  * rbx: kernel thread func (NULL for user thread)
  * r12: kernel thread arg
  */
-ENTRY(ret_from_fork)
+SYM_CODE_START(ret_from_fork)
 	UNWIND_HINT_EMPTY
 	movq	%rax, %rdi
 	call	schedule_tail			/* rdi: 'prev' task parameter */
@@ -357,14 +357,14 @@ ENTRY(ret_from_fork)
 	 */
 	movq	$0, RAX(%rsp)
 	jmp	2b
-END(ret_from_fork)
+SYM_CODE_END(ret_from_fork)
 
 /*
  * Build the entry stubs with some assembler magic.
  * We pack 1 stub into every 8-byte block.
  */
 	.align 8
-ENTRY(irq_entries_start)
+SYM_CODE_START(irq_entries_start)
     vector=FIRST_EXTERNAL_VECTOR
     .rept (FIRST_SYSTEM_VECTOR - FIRST_EXTERNAL_VECTOR)
 	UNWIND_HINT_IRET_REGS
@@ -373,10 +373,10 @@ ENTRY(irq_entries_start)
 	.align	8
 	vector=vector+1
     .endr
-END(irq_entries_start)
+SYM_CODE_END(irq_entries_start)
 
 	.align 8
-ENTRY(spurious_entries_start)
+SYM_CODE_START(spurious_entries_start)
     vector=FIRST_SYSTEM_VECTOR
     .rept (NR_VECTORS - FIRST_SYSTEM_VECTOR)
 	UNWIND_HINT_IRET_REGS
@@ -385,7 +385,7 @@ ENTRY(spurious_entries_start)
 	.align	8
 	vector=vector+1
     .endr
-END(spurious_entries_start)
+SYM_CODE_END(spurious_entries_start)
 
 .macro DEBUG_ENTRY_ASSERT_IRQS_OFF
 #ifdef CONFIG_DEBUG_ENTRY
@@ -511,7 +511,7 @@ END(spurious_entries_start)
  * | return address					|
  * +----------------------------------------------------+
  */
-ENTRY(interrupt_entry)
+SYM_CODE_START(interrupt_entry)
 	UNWIND_HINT_FUNC
 	ASM_CLAC
 	cld
@@ -579,7 +579,7 @@ ENTRY(interrupt_entry)
 	TRACE_IRQS_OFF
 
 	ret
-END(interrupt_entry)
+SYM_CODE_END(interrupt_entry)
 _ASM_NOKPROBE(interrupt_entry)
 
 
@@ -795,7 +795,7 @@ _ASM_NOKPROBE(common_interrupt)
  * APIC interrupts.
  */
 .macro apicinterrupt3 num sym do_sym
-ENTRY(\sym)
+SYM_CODE_START(\sym)
 	UNWIND_HINT_IRET_REGS
 	pushq	$~(\num)
 .Lcommon_\sym:
@@ -803,7 +803,7 @@ ENTRY(\sym)
 	UNWIND_HINT_REGS indirect=1
 	call	\do_sym	/* rdi points to pt_regs */
 	jmp	ret_from_intr
-END(\sym)
+SYM_CODE_END(\sym)
 _ASM_NOKPROBE(\sym)
 .endm
 
@@ -968,7 +968,7 @@ apicinterrupt IRQ_WORK_VECTOR			irq_work_interrupt		smp_irq_work_interrupt
  * #DF: if the thread stack is somehow unusable, we'll still get a useful OOPS.
  */
 .macro idtentry sym do_sym has_error_code:req paranoid=0 shift_ist=-1 ist_offset=0 create_gap=0 read_cr2=0
-ENTRY(\sym)
+SYM_CODE_START(\sym)
 	UNWIND_HINT_IRET_REGS offset=\has_error_code*8
 
 	/* Sanity check */
@@ -1018,7 +1018,7 @@ ENTRY(\sym)
 	.endif
 
 _ASM_NOKPROBE(\sym)
-END(\sym)
+SYM_CODE_END(\sym)
 .endm
 
 idtentry divide_error			do_divide_error			has_error_code=0
@@ -1135,7 +1135,7 @@ SYM_CODE_END(xen_do_hypervisor_callback)
  * We distinguish between categories by comparing each saved segment register
  * with its current contents: any discrepancy means we in category 1.
  */
-ENTRY(xen_failsafe_callback)
+SYM_CODE_START(xen_failsafe_callback)
 	UNWIND_HINT_EMPTY
 	movl	%ds, %ecx
 	cmpw	%cx, 0x10(%rsp)
@@ -1165,7 +1165,7 @@ ENTRY(xen_failsafe_callback)
 	PUSH_AND_CLEAR_REGS
 	ENCODE_FRAME_POINTER
 	jmp	error_exit
-END(xen_failsafe_callback)
+SYM_CODE_END(xen_failsafe_callback)
 #endif /* CONFIG_XEN_PV */
 
 #ifdef CONFIG_XEN_PVHVM
@@ -1384,7 +1384,7 @@ SYM_CODE_END(error_exit)
  *	%r14: Used to save/restore the CR3 of the interrupted context
  *	      when PAGE_TABLE_ISOLATION is in use.  Do not clobber.
  */
-ENTRY(nmi)
+SYM_CODE_START(nmi)
 	UNWIND_HINT_IRET_REGS
 
 	/*
@@ -1719,21 +1719,21 @@ nmi_restore:
 	 * about espfix64 on the way back to kernel mode.
 	 */
 	iretq
-END(nmi)
+SYM_CODE_END(nmi)
 
 #ifndef CONFIG_IA32_EMULATION
 /*
  * This handles SYSCALL from 32-bit code.  There is no way to program
  * MSRs to fully disable 32-bit SYSCALL.
  */
-ENTRY(ignore_sysret)
+SYM_CODE_START(ignore_sysret)
 	UNWIND_HINT_EMPTY
 	mov	$-ENOSYS, %eax
 	sysret
-END(ignore_sysret)
+SYM_CODE_END(ignore_sysret)
 #endif
 
-ENTRY(rewind_stack_do_exit)
+SYM_CODE_START(rewind_stack_do_exit)
 	UNWIND_HINT_FUNC
 	/* Prevent any naive code from trying to unwind to our caller. */
 	xorl	%ebp, %ebp
@@ -1743,4 +1743,4 @@ ENTRY(rewind_stack_do_exit)
 	UNWIND_HINT_FUNC sp_offset=PTREGS_SIZE
 
 	call	do_exit
-END(rewind_stack_do_exit)
+SYM_CODE_END(rewind_stack_do_exit)
diff --git a/arch/x86/entry/entry_64_compat.S b/arch/x86/entry/entry_64_compat.S
index 5c7e71669239..da296435676e 100644
--- a/arch/x86/entry/entry_64_compat.S
+++ b/arch/x86/entry/entry_64_compat.S
@@ -196,7 +196,7 @@ ENDPROC(entry_SYSENTER_compat)
  * esp  user stack
  * 0(%esp) arg6
  */
-ENTRY(entry_SYSCALL_compat)
+SYM_CODE_START(entry_SYSCALL_compat)
 	/* Interrupts are off on entry. */
 	swapgs
 
@@ -311,7 +311,7 @@ sysret32_from_system_call:
 	xorl	%r10d, %r10d
 	swapgs
 	sysretl
-END(entry_SYSCALL_compat)
+SYM_CODE_END(entry_SYSCALL_compat)
 
 /*
  * 32-bit legacy system call entry.
@@ -339,7 +339,7 @@ END(entry_SYSCALL_compat)
  * edi  arg5
  * ebp  arg6
  */
-ENTRY(entry_INT80_compat)
+SYM_CODE_START(entry_INT80_compat)
 	/*
 	 * Interrupts are off on entry.
 	 */
@@ -416,4 +416,4 @@ ENTRY(entry_INT80_compat)
 	/* Go back to user mode. */
 	TRACE_IRQS_ON
 	jmp	swapgs_restore_regs_and_return_to_usermode
-END(entry_INT80_compat)
+SYM_CODE_END(entry_INT80_compat)
diff --git a/arch/x86/kernel/ftrace_64.S b/arch/x86/kernel/ftrace_64.S
index 3afaaf555637..60f894b018e0 100644
--- a/arch/x86/kernel/ftrace_64.S
+++ b/arch/x86/kernel/ftrace_64.S
@@ -296,7 +296,7 @@ ENTRY(ftrace_graph_caller)
 	retq
 ENDPROC(ftrace_graph_caller)
 
-ENTRY(return_to_handler)
+SYM_CODE_START(return_to_handler)
 	UNWIND_HINT_EMPTY
 	subq  $24, %rsp
 
@@ -312,5 +312,5 @@ ENTRY(return_to_handler)
 	movq (%rsp), %rax
 	addq $24, %rsp
 	JMP_NOSPEC %rdi
-END(return_to_handler)
+SYM_CODE_END(return_to_handler)
 #endif
diff --git a/arch/x86/kernel/head_64.S b/arch/x86/kernel/head_64.S
index 10f306e31244..4bbc770af632 100644
--- a/arch/x86/kernel/head_64.S
+++ b/arch/x86/kernel/head_64.S
@@ -91,7 +91,7 @@ SYM_CODE_START_NOALIGN(startup_64)
 	jmp 1f
 SYM_CODE_END(startup_64)
 
-ENTRY(secondary_startup_64)
+SYM_CODE_START(secondary_startup_64)
 	UNWIND_HINT_EMPTY
 	/*
 	 * At this point the CPU runs in 64bit mode CS.L = 1 CS.D = 0,
@@ -241,7 +241,7 @@ ENTRY(secondary_startup_64)
 	pushq	%rax		# target address in negative space
 	lretq
 .Lafter_lret:
-END(secondary_startup_64)
+SYM_CODE_END(secondary_startup_64)
 
 #include "verify_cpu.S"
 
@@ -251,11 +251,11 @@ END(secondary_startup_64)
  * up already except stack. We just set up stack here. Then call
  * start_secondary() via .Ljump_to_C_code.
  */
-ENTRY(start_cpu0)
+SYM_CODE_START(start_cpu0)
 	UNWIND_HINT_EMPTY
 	movq	initial_stack(%rip), %rsp
 	jmp	.Ljump_to_C_code
-END(start_cpu0)
+SYM_CODE_END(start_cpu0)
 #endif
 
 	/* Both SMP bootup and ACPI suspend change these variables */
@@ -272,7 +272,7 @@ SYM_DATA(initial_stack, .quad init_thread_union + THREAD_SIZE - SIZEOF_PTREGS)
 	__FINITDATA
 
 	__INIT
-ENTRY(early_idt_handler_array)
+SYM_CODE_START(early_idt_handler_array)
 	i = 0
 	.rept NUM_EXCEPTION_VECTORS
 	.if ((EXCEPTION_ERRCODE_MASK >> i) & 1) == 0
@@ -288,7 +288,7 @@ ENTRY(early_idt_handler_array)
 	.fill early_idt_handler_array + i*EARLY_IDT_HANDLER_SIZE - ., 1, 0xcc
 	.endr
 	UNWIND_HINT_IRET_REGS offset=16
-END(early_idt_handler_array)
+SYM_CODE_END(early_idt_handler_array)
 
 SYM_CODE_START_LOCAL(early_idt_handler_common)
 	/*
diff --git a/arch/x86/xen/xen-asm_64.S b/arch/x86/xen/xen-asm_64.S
index c209c70fc5e4..0060120f51dd 100644
--- a/arch/x86/xen/xen-asm_64.S
+++ b/arch/x86/xen/xen-asm_64.S
@@ -20,11 +20,11 @@
 #include <linux/linkage.h>
 
 .macro xen_pv_trap name
-ENTRY(xen_\name)
+SYM_CODE_START(xen_\name)
 	pop %rcx
 	pop %r11
 	jmp  \name
-END(xen_\name)
+SYM_CODE_END(xen_\name)
 _ASM_NOKPROBE(xen_\name)
 .endm
 
@@ -57,7 +57,7 @@ xen_pv_trap entry_INT80_compat
 xen_pv_trap hypervisor_callback
 
 	__INIT
-ENTRY(xen_early_idt_handler_array)
+SYM_CODE_START(xen_early_idt_handler_array)
 	i = 0
 	.rept NUM_EXCEPTION_VECTORS
 	pop %rcx
@@ -66,7 +66,7 @@ ENTRY(xen_early_idt_handler_array)
 	i = i + 1
 	.fill xen_early_idt_handler_array + i*XEN_EARLY_IDT_HANDLER_SIZE - ., 1, 0xcc
 	.endr
-END(xen_early_idt_handler_array)
+SYM_CODE_END(xen_early_idt_handler_array)
 	__FINIT
 
 hypercall_iret = hypercall_page + __HYPERVISOR_iret * 32
diff --git a/arch/x86/xen/xen-head.S b/arch/x86/xen/xen-head.S
index c1d8b90aa4e2..1d0cee3163e4 100644
--- a/arch/x86/xen/xen-head.S
+++ b/arch/x86/xen/xen-head.S
@@ -22,7 +22,7 @@
 
 #ifdef CONFIG_XEN_PV
 	__INIT
-ENTRY(startup_xen)
+SYM_CODE_START(startup_xen)
 	UNWIND_HINT_EMPTY
 	cld
 
@@ -52,13 +52,13 @@ ENTRY(startup_xen)
 #endif
 
 	jmp xen_start_kernel
-END(startup_xen)
+SYM_CODE_END(startup_xen)
 	__FINIT
 #endif
 
 .pushsection .text
 	.balign PAGE_SIZE
-ENTRY(hypercall_page)
+SYM_CODE_START(hypercall_page)
 	.rept (PAGE_SIZE / 32)
 		UNWIND_HINT_EMPTY
 		.skip 32
@@ -69,7 +69,7 @@ ENTRY(hypercall_page)
 	.type xen_hypercall_##n, @function; .size xen_hypercall_##n, 32
 #include <asm/xen-hypercalls.h>
 #undef HYPERCALL
-END(hypercall_page)
+SYM_CODE_END(hypercall_page)
 .popsection
 
 	ELFNOTE(Xen, XEN_ELFNOTE_GUEST_OS,       .asciz "linux")
-- 
2.23.0


_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xenproject.org
https://lists.xenproject.org/mailman/listinfo/xen-devel

^ permalink raw reply related	[flat|nested] 110+ messages in thread

* [PATCH v9 24/28] x86_64/asm: Change all ENTRY+ENDPROC to SYM_FUNC_*
  2019-10-11 11:50 [PATCH v9 00/28] New macros for assembler symbols Jiri Slaby
@ 2019-10-11 11:51   ` Jiri Slaby
  2019-10-11 11:50 ` [PATCH v9 02/28] x86/asm/suspend: Use SYM_DATA for data Jiri Slaby
                     ` (26 subsequent siblings)
  27 siblings, 0 replies; 110+ messages in thread
From: Jiri Slaby @ 2019-10-11 11:51 UTC (permalink / raw)
  To: bp
  Cc: tglx, mingo, hpa, x86, linux-arch, linux-kernel, Jiri Slaby,
	Rafael J . Wysocki, Boris Ostrovsky, Herbert Xu, David S. Miller,
	Rafael J. Wysocki, Len Brown, Pavel Machek, Matt Fleming,
	Ard Biesheuvel, Juergen Gross, linux-crypto, linux-pm, linux-efi,
	xen-devel

These are all functions which are invoked from elsewhere, so annotate
them as global using the new SYM_FUNC_START. And their ENDPROC's by
SYM_FUNC_END.

And make sure ENTRY/ENDPROC is not defined on X86_64, given these were
the last users.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Reviewed-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> [hibernate]
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> [xen bits]
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: x86@kernel.org
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>
Cc: Len Brown <len.brown@intel.com>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: Matt Fleming <matt@codeblueprint.co.uk>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: Juergen Gross <jgross@suse.com>
Cc: linux-crypto@vger.kernel.org
Cc: linux-pm@vger.kernel.org
Cc: linux-efi@vger.kernel.org
Cc: xen-devel@lists.xenproject.org
---
 arch/x86/boot/compressed/efi_thunk_64.S      |  4 +-
 arch/x86/boot/compressed/head_64.S           | 16 +++---
 arch/x86/boot/compressed/mem_encrypt.S       |  8 +--
 arch/x86/crypto/aegis128-aesni-asm.S         | 28 ++++-----
 arch/x86/crypto/aes_ctrby8_avx-x86_64.S      | 12 ++--
 arch/x86/crypto/aesni-intel_asm.S            | 60 ++++++++++----------
 arch/x86/crypto/aesni-intel_avx-x86_64.S     | 32 +++++------
 arch/x86/crypto/blowfish-x86_64-asm_64.S     | 16 +++---
 arch/x86/crypto/camellia-aesni-avx-asm_64.S  | 24 ++++----
 arch/x86/crypto/camellia-aesni-avx2-asm_64.S | 24 ++++----
 arch/x86/crypto/camellia-x86_64-asm_64.S     | 16 +++---
 arch/x86/crypto/cast5-avx-x86_64-asm_64.S    | 16 +++---
 arch/x86/crypto/cast6-avx-x86_64-asm_64.S    | 24 ++++----
 arch/x86/crypto/chacha-avx2-x86_64.S         | 12 ++--
 arch/x86/crypto/chacha-avx512vl-x86_64.S     | 12 ++--
 arch/x86/crypto/chacha-ssse3-x86_64.S        | 12 ++--
 arch/x86/crypto/crc32-pclmul_asm.S           |  4 +-
 arch/x86/crypto/crc32c-pcl-intel-asm_64.S    |  4 +-
 arch/x86/crypto/crct10dif-pcl-asm_64.S       |  4 +-
 arch/x86/crypto/des3_ede-asm_64.S            |  8 +--
 arch/x86/crypto/ghash-clmulni-intel_asm.S    |  8 +--
 arch/x86/crypto/nh-avx2-x86_64.S             |  4 +-
 arch/x86/crypto/nh-sse2-x86_64.S             |  4 +-
 arch/x86/crypto/poly1305-avx2-x86_64.S       |  4 +-
 arch/x86/crypto/poly1305-sse2-x86_64.S       |  8 +--
 arch/x86/crypto/serpent-avx-x86_64-asm_64.S  | 24 ++++----
 arch/x86/crypto/serpent-avx2-asm_64.S        | 24 ++++----
 arch/x86/crypto/serpent-sse2-x86_64-asm_64.S |  8 +--
 arch/x86/crypto/sha1_avx2_x86_64_asm.S       |  4 +-
 arch/x86/crypto/sha1_ni_asm.S                |  4 +-
 arch/x86/crypto/sha1_ssse3_asm.S             |  4 +-
 arch/x86/crypto/sha256-avx-asm.S             |  4 +-
 arch/x86/crypto/sha256-avx2-asm.S            |  4 +-
 arch/x86/crypto/sha256-ssse3-asm.S           |  4 +-
 arch/x86/crypto/sha256_ni_asm.S              |  4 +-
 arch/x86/crypto/sha512-avx-asm.S             |  4 +-
 arch/x86/crypto/sha512-avx2-asm.S            |  4 +-
 arch/x86/crypto/sha512-ssse3-asm.S           |  4 +-
 arch/x86/crypto/twofish-avx-x86_64-asm_64.S  | 24 ++++----
 arch/x86/crypto/twofish-x86_64-asm_64-3way.S |  8 +--
 arch/x86/crypto/twofish-x86_64-asm_64.S      |  8 +--
 arch/x86/entry/entry_64.S                    | 10 ++--
 arch/x86/entry/entry_64_compat.S             |  4 +-
 arch/x86/kernel/acpi/wakeup_64.S             |  8 +--
 arch/x86/kernel/ftrace_64.S                  | 20 +++----
 arch/x86/kernel/irqflags.S                   |  8 +--
 arch/x86/kvm/vmx/vmenter.S                   | 12 ++--
 arch/x86/lib/checksum_32.S                   |  8 +--
 arch/x86/lib/clear_page_64.S                 | 12 ++--
 arch/x86/lib/cmpxchg16b_emu.S                |  4 +-
 arch/x86/lib/cmpxchg8b_emu.S                 |  4 +-
 arch/x86/lib/copy_page_64.S                  |  4 +-
 arch/x86/lib/copy_user_64.S                  | 16 +++---
 arch/x86/lib/csum-copy_64.S                  |  4 +-
 arch/x86/lib/getuser.S                       | 16 +++---
 arch/x86/lib/hweight.S                       |  8 +--
 arch/x86/lib/iomap_copy_64.S                 |  4 +-
 arch/x86/lib/memcpy_64.S                     |  4 +-
 arch/x86/lib/memmove_64.S                    |  4 +-
 arch/x86/lib/memset_64.S                     |  4 +-
 arch/x86/lib/msr-reg.S                       |  8 +--
 arch/x86/lib/putuser.S                       | 16 +++---
 arch/x86/lib/retpoline.S                     |  4 +-
 arch/x86/mm/mem_encrypt_boot.S               |  8 +--
 arch/x86/platform/efi/efi_stub_64.S          |  4 +-
 arch/x86/platform/efi/efi_thunk_64.S         |  4 +-
 arch/x86/power/hibernate_asm_64.S            |  8 +--
 arch/x86/xen/xen-asm.S                       | 28 ++++-----
 arch/x86/xen/xen-asm_64.S                    | 16 +++---
 include/linux/linkage.h                      |  4 ++
 70 files changed, 379 insertions(+), 375 deletions(-)

diff --git a/arch/x86/boot/compressed/efi_thunk_64.S b/arch/x86/boot/compressed/efi_thunk_64.S
index 31312070db22..593913692d16 100644
--- a/arch/x86/boot/compressed/efi_thunk_64.S
+++ b/arch/x86/boot/compressed/efi_thunk_64.S
@@ -23,7 +23,7 @@
 
 	.code64
 	.text
-ENTRY(efi64_thunk)
+SYM_FUNC_START(efi64_thunk)
 	push	%rbp
 	push	%rbx
 
@@ -97,7 +97,7 @@ ENTRY(efi64_thunk)
 	pop	%rbx
 	pop	%rbp
 	ret
-ENDPROC(efi64_thunk)
+SYM_FUNC_END(efi64_thunk)
 
 SYM_FUNC_START_LOCAL(efi_exit32)
 	movq	func_rt_ptr(%rip), %rax
diff --git a/arch/x86/boot/compressed/head_64.S b/arch/x86/boot/compressed/head_64.S
index 55800467ce5c..58a512e33d8d 100644
--- a/arch/x86/boot/compressed/head_64.S
+++ b/arch/x86/boot/compressed/head_64.S
@@ -45,7 +45,7 @@
 
 	__HEAD
 	.code32
-ENTRY(startup_32)
+SYM_FUNC_START(startup_32)
 	/*
 	 * 32bit entry is 0 and it is ABI so immutable!
 	 * If we come here directly from a bootloader,
@@ -222,11 +222,11 @@ ENTRY(startup_32)
 
 	/* Jump from 32bit compatibility mode into 64bit mode. */
 	lret
-ENDPROC(startup_32)
+SYM_FUNC_END(startup_32)
 
 #ifdef CONFIG_EFI_MIXED
 	.org 0x190
-ENTRY(efi32_stub_entry)
+SYM_FUNC_START(efi32_stub_entry)
 	add	$0x4, %esp		/* Discard return address */
 	popl	%ecx
 	popl	%edx
@@ -245,7 +245,7 @@ ENTRY(efi32_stub_entry)
 	movl	%eax, efi_config(%ebp)
 
 	jmp	startup_32
-ENDPROC(efi32_stub_entry)
+SYM_FUNC_END(efi32_stub_entry)
 #endif
 
 	.code64
@@ -447,7 +447,7 @@ SYM_CODE_END(startup_64)
 #ifdef CONFIG_EFI_STUB
 
 /* The entry point for the PE/COFF executable is efi_pe_entry. */
-ENTRY(efi_pe_entry)
+SYM_FUNC_START(efi_pe_entry)
 	movq	%rcx, efi64_config(%rip)	/* Handle */
 	movq	%rdx, efi64_config+8(%rip) /* EFI System table pointer */
 
@@ -496,10 +496,10 @@ fail:
 	movl	BP_code32_start(%esi), %eax
 	leaq	startup_64(%rax), %rax
 	jmp	*%rax
-ENDPROC(efi_pe_entry)
+SYM_FUNC_END(efi_pe_entry)
 
 	.org 0x390
-ENTRY(efi64_stub_entry)
+SYM_FUNC_START(efi64_stub_entry)
 	movq	%rdi, efi64_config(%rip)	/* Handle */
 	movq	%rsi, efi64_config+8(%rip) /* EFI System table pointer */
 
@@ -508,7 +508,7 @@ ENTRY(efi64_stub_entry)
 
 	movq	%rdx, %rsi
 	jmp	handover_entry
-ENDPROC(efi64_stub_entry)
+SYM_FUNC_END(efi64_stub_entry)
 #endif
 
 	.text
diff --git a/arch/x86/boot/compressed/mem_encrypt.S b/arch/x86/boot/compressed/mem_encrypt.S
index 28d703cad310..dd07e7b41b11 100644
--- a/arch/x86/boot/compressed/mem_encrypt.S
+++ b/arch/x86/boot/compressed/mem_encrypt.S
@@ -15,7 +15,7 @@
 
 	.text
 	.code32
-ENTRY(get_sev_encryption_bit)
+SYM_FUNC_START(get_sev_encryption_bit)
 	xor	%eax, %eax
 
 #ifdef CONFIG_AMD_MEM_ENCRYPT
@@ -65,10 +65,10 @@ ENTRY(get_sev_encryption_bit)
 #endif	/* CONFIG_AMD_MEM_ENCRYPT */
 
 	ret
-ENDPROC(get_sev_encryption_bit)
+SYM_FUNC_END(get_sev_encryption_bit)
 
 	.code64
-ENTRY(set_sev_encryption_mask)
+SYM_FUNC_START(set_sev_encryption_mask)
 #ifdef CONFIG_AMD_MEM_ENCRYPT
 	push	%rbp
 	push	%rdx
@@ -90,7 +90,7 @@ ENTRY(set_sev_encryption_mask)
 
 	xor	%rax, %rax
 	ret
-ENDPROC(set_sev_encryption_mask)
+SYM_FUNC_END(set_sev_encryption_mask)
 
 	.data
 
diff --git a/arch/x86/crypto/aegis128-aesni-asm.S b/arch/x86/crypto/aegis128-aesni-asm.S
index b7026fdef4ff..51d46d93efbc 100644
--- a/arch/x86/crypto/aegis128-aesni-asm.S
+++ b/arch/x86/crypto/aegis128-aesni-asm.S
@@ -186,7 +186,7 @@ SYM_FUNC_END(__store_partial)
 /*
  * void crypto_aegis128_aesni_init(void *state, const void *key, const void *iv);
  */
-ENTRY(crypto_aegis128_aesni_init)
+SYM_FUNC_START(crypto_aegis128_aesni_init)
 	FRAME_BEGIN
 
 	/* load IV: */
@@ -226,13 +226,13 @@ ENTRY(crypto_aegis128_aesni_init)
 
 	FRAME_END
 	ret
-ENDPROC(crypto_aegis128_aesni_init)
+SYM_FUNC_END(crypto_aegis128_aesni_init)
 
 /*
  * void crypto_aegis128_aesni_ad(void *state, unsigned int length,
  *                               const void *data);
  */
-ENTRY(crypto_aegis128_aesni_ad)
+SYM_FUNC_START(crypto_aegis128_aesni_ad)
 	FRAME_BEGIN
 
 	cmp $0x10, LEN
@@ -378,7 +378,7 @@ ENTRY(crypto_aegis128_aesni_ad)
 .Lad_out:
 	FRAME_END
 	ret
-ENDPROC(crypto_aegis128_aesni_ad)
+SYM_FUNC_END(crypto_aegis128_aesni_ad)
 
 .macro encrypt_block a s0 s1 s2 s3 s4 i
 	movdq\a (\i * 0x10)(SRC), MSG
@@ -402,7 +402,7 @@ ENDPROC(crypto_aegis128_aesni_ad)
  * void crypto_aegis128_aesni_enc(void *state, unsigned int length,
  *                                const void *src, void *dst);
  */
-ENTRY(crypto_aegis128_aesni_enc)
+SYM_FUNC_START(crypto_aegis128_aesni_enc)
 	FRAME_BEGIN
 
 	cmp $0x10, LEN
@@ -493,13 +493,13 @@ ENTRY(crypto_aegis128_aesni_enc)
 .Lenc_out:
 	FRAME_END
 	ret
-ENDPROC(crypto_aegis128_aesni_enc)
+SYM_FUNC_END(crypto_aegis128_aesni_enc)
 
 /*
  * void crypto_aegis128_aesni_enc_tail(void *state, unsigned int length,
  *                                     const void *src, void *dst);
  */
-ENTRY(crypto_aegis128_aesni_enc_tail)
+SYM_FUNC_START(crypto_aegis128_aesni_enc_tail)
 	FRAME_BEGIN
 
 	/* load the state: */
@@ -533,7 +533,7 @@ ENTRY(crypto_aegis128_aesni_enc_tail)
 
 	FRAME_END
 	ret
-ENDPROC(crypto_aegis128_aesni_enc_tail)
+SYM_FUNC_END(crypto_aegis128_aesni_enc_tail)
 
 .macro decrypt_block a s0 s1 s2 s3 s4 i
 	movdq\a (\i * 0x10)(SRC), MSG
@@ -556,7 +556,7 @@ ENDPROC(crypto_aegis128_aesni_enc_tail)
  * void crypto_aegis128_aesni_dec(void *state, unsigned int length,
  *                                const void *src, void *dst);
  */
-ENTRY(crypto_aegis128_aesni_dec)
+SYM_FUNC_START(crypto_aegis128_aesni_dec)
 	FRAME_BEGIN
 
 	cmp $0x10, LEN
@@ -647,13 +647,13 @@ ENTRY(crypto_aegis128_aesni_dec)
 .Ldec_out:
 	FRAME_END
 	ret
-ENDPROC(crypto_aegis128_aesni_dec)
+SYM_FUNC_END(crypto_aegis128_aesni_dec)
 
 /*
  * void crypto_aegis128_aesni_dec_tail(void *state, unsigned int length,
  *                                     const void *src, void *dst);
  */
-ENTRY(crypto_aegis128_aesni_dec_tail)
+SYM_FUNC_START(crypto_aegis128_aesni_dec_tail)
 	FRAME_BEGIN
 
 	/* load the state: */
@@ -697,13 +697,13 @@ ENTRY(crypto_aegis128_aesni_dec_tail)
 
 	FRAME_END
 	ret
-ENDPROC(crypto_aegis128_aesni_dec_tail)
+SYM_FUNC_END(crypto_aegis128_aesni_dec_tail)
 
 /*
  * void crypto_aegis128_aesni_final(void *state, void *tag_xor,
  *                                  u64 assoclen, u64 cryptlen);
  */
-ENTRY(crypto_aegis128_aesni_final)
+SYM_FUNC_START(crypto_aegis128_aesni_final)
 	FRAME_BEGIN
 
 	/* load the state: */
@@ -744,4 +744,4 @@ ENTRY(crypto_aegis128_aesni_final)
 
 	FRAME_END
 	ret
-ENDPROC(crypto_aegis128_aesni_final)
+SYM_FUNC_END(crypto_aegis128_aesni_final)
diff --git a/arch/x86/crypto/aes_ctrby8_avx-x86_64.S b/arch/x86/crypto/aes_ctrby8_avx-x86_64.S
index 5f6a5af9c489..ec437db1fa54 100644
--- a/arch/x86/crypto/aes_ctrby8_avx-x86_64.S
+++ b/arch/x86/crypto/aes_ctrby8_avx-x86_64.S
@@ -544,11 +544,11 @@ ddq_add_8:
  * aes_ctr_enc_128_avx_by8(void *in, void *iv, void *keys, void *out,
  *			unsigned int num_bytes)
  */
-ENTRY(aes_ctr_enc_128_avx_by8)
+SYM_FUNC_START(aes_ctr_enc_128_avx_by8)
 	/* call the aes main loop */
 	do_aes_ctrmain KEY_128
 
-ENDPROC(aes_ctr_enc_128_avx_by8)
+SYM_FUNC_END(aes_ctr_enc_128_avx_by8)
 
 /*
  * routine to do AES192 CTR enc/decrypt "by8"
@@ -557,11 +557,11 @@ ENDPROC(aes_ctr_enc_128_avx_by8)
  * aes_ctr_enc_192_avx_by8(void *in, void *iv, void *keys, void *out,
  *			unsigned int num_bytes)
  */
-ENTRY(aes_ctr_enc_192_avx_by8)
+SYM_FUNC_START(aes_ctr_enc_192_avx_by8)
 	/* call the aes main loop */
 	do_aes_ctrmain KEY_192
 
-ENDPROC(aes_ctr_enc_192_avx_by8)
+SYM_FUNC_END(aes_ctr_enc_192_avx_by8)
 
 /*
  * routine to do AES256 CTR enc/decrypt "by8"
@@ -570,8 +570,8 @@ ENDPROC(aes_ctr_enc_192_avx_by8)
  * aes_ctr_enc_256_avx_by8(void *in, void *iv, void *keys, void *out,
  *			unsigned int num_bytes)
  */
-ENTRY(aes_ctr_enc_256_avx_by8)
+SYM_FUNC_START(aes_ctr_enc_256_avx_by8)
 	/* call the aes main loop */
 	do_aes_ctrmain KEY_256
 
-ENDPROC(aes_ctr_enc_256_avx_by8)
+SYM_FUNC_END(aes_ctr_enc_256_avx_by8)
diff --git a/arch/x86/crypto/aesni-intel_asm.S b/arch/x86/crypto/aesni-intel_asm.S
index 9d8d5f2296e1..d28503f99f58 100644
--- a/arch/x86/crypto/aesni-intel_asm.S
+++ b/arch/x86/crypto/aesni-intel_asm.S
@@ -1592,7 +1592,7 @@ _esb_loop_\@:
 * poly = x^128 + x^127 + x^126 + x^121 + 1
 *
 *****************************************************************************/
-ENTRY(aesni_gcm_dec)
+SYM_FUNC_START(aesni_gcm_dec)
 	FUNC_SAVE
 
 	GCM_INIT %arg6, arg7, arg8, arg9
@@ -1600,7 +1600,7 @@ ENTRY(aesni_gcm_dec)
 	GCM_COMPLETE arg10, arg11
 	FUNC_RESTORE
 	ret
-ENDPROC(aesni_gcm_dec)
+SYM_FUNC_END(aesni_gcm_dec)
 
 
 /*****************************************************************************
@@ -1680,7 +1680,7 @@ ENDPROC(aesni_gcm_dec)
 *
 * poly = x^128 + x^127 + x^126 + x^121 + 1
 ***************************************************************************/
-ENTRY(aesni_gcm_enc)
+SYM_FUNC_START(aesni_gcm_enc)
 	FUNC_SAVE
 
 	GCM_INIT %arg6, arg7, arg8, arg9
@@ -1689,7 +1689,7 @@ ENTRY(aesni_gcm_enc)
 	GCM_COMPLETE arg10, arg11
 	FUNC_RESTORE
 	ret
-ENDPROC(aesni_gcm_enc)
+SYM_FUNC_END(aesni_gcm_enc)
 
 /*****************************************************************************
 * void aesni_gcm_init(void *aes_ctx,      // AES Key schedule. Starts on a 16 byte boundary.
@@ -1702,12 +1702,12 @@ ENDPROC(aesni_gcm_enc)
 *                     const u8 *aad,      // Additional Authentication Data (AAD)
 *                     u64 aad_len)        // Length of AAD in bytes.
 */
-ENTRY(aesni_gcm_init)
+SYM_FUNC_START(aesni_gcm_init)
 	FUNC_SAVE
 	GCM_INIT %arg3, %arg4,%arg5, %arg6
 	FUNC_RESTORE
 	ret
-ENDPROC(aesni_gcm_init)
+SYM_FUNC_END(aesni_gcm_init)
 
 /*****************************************************************************
 * void aesni_gcm_enc_update(void *aes_ctx,      // AES Key schedule. Starts on a 16 byte boundary.
@@ -1717,12 +1717,12 @@ ENDPROC(aesni_gcm_init)
 *                    const u8 *in,       // Plaintext input
 *                    u64 plaintext_len,  // Length of data in bytes for encryption.
 */
-ENTRY(aesni_gcm_enc_update)
+SYM_FUNC_START(aesni_gcm_enc_update)
 	FUNC_SAVE
 	GCM_ENC_DEC enc
 	FUNC_RESTORE
 	ret
-ENDPROC(aesni_gcm_enc_update)
+SYM_FUNC_END(aesni_gcm_enc_update)
 
 /*****************************************************************************
 * void aesni_gcm_dec_update(void *aes_ctx,      // AES Key schedule. Starts on a 16 byte boundary.
@@ -1732,12 +1732,12 @@ ENDPROC(aesni_gcm_enc_update)
 *                    const u8 *in,       // Plaintext input
 *                    u64 plaintext_len,  // Length of data in bytes for encryption.
 */
-ENTRY(aesni_gcm_dec_update)
+SYM_FUNC_START(aesni_gcm_dec_update)
 	FUNC_SAVE
 	GCM_ENC_DEC dec
 	FUNC_RESTORE
 	ret
-ENDPROC(aesni_gcm_dec_update)
+SYM_FUNC_END(aesni_gcm_dec_update)
 
 /*****************************************************************************
 * void aesni_gcm_finalize(void *aes_ctx,      // AES Key schedule. Starts on a 16 byte boundary.
@@ -1747,12 +1747,12 @@ ENDPROC(aesni_gcm_dec_update)
 *                    u64 auth_tag_len);  // Authenticated Tag Length in bytes. Valid values are 16 (most likely),
 *                                        // 12 or 8.
 */
-ENTRY(aesni_gcm_finalize)
+SYM_FUNC_START(aesni_gcm_finalize)
 	FUNC_SAVE
 	GCM_COMPLETE %arg3 %arg4
 	FUNC_RESTORE
 	ret
-ENDPROC(aesni_gcm_finalize)
+SYM_FUNC_END(aesni_gcm_finalize)
 
 #endif
 
@@ -1830,7 +1830,7 @@ SYM_FUNC_END(_key_expansion_256b)
  * int aesni_set_key(struct crypto_aes_ctx *ctx, const u8 *in_key,
  *                   unsigned int key_len)
  */
-ENTRY(aesni_set_key)
+SYM_FUNC_START(aesni_set_key)
 	FRAME_BEGIN
 #ifndef __x86_64__
 	pushl KEYP
@@ -1939,12 +1939,12 @@ ENTRY(aesni_set_key)
 #endif
 	FRAME_END
 	ret
-ENDPROC(aesni_set_key)
+SYM_FUNC_END(aesni_set_key)
 
 /*
  * void aesni_enc(struct crypto_aes_ctx *ctx, u8 *dst, const u8 *src)
  */
-ENTRY(aesni_enc)
+SYM_FUNC_START(aesni_enc)
 	FRAME_BEGIN
 #ifndef __x86_64__
 	pushl KEYP
@@ -1963,7 +1963,7 @@ ENTRY(aesni_enc)
 #endif
 	FRAME_END
 	ret
-ENDPROC(aesni_enc)
+SYM_FUNC_END(aesni_enc)
 
 /*
  * _aesni_enc1:		internal ABI
@@ -2133,7 +2133,7 @@ SYM_FUNC_END(_aesni_enc4)
 /*
  * void aesni_dec (struct crypto_aes_ctx *ctx, u8 *dst, const u8 *src)
  */
-ENTRY(aesni_dec)
+SYM_FUNC_START(aesni_dec)
 	FRAME_BEGIN
 #ifndef __x86_64__
 	pushl KEYP
@@ -2153,7 +2153,7 @@ ENTRY(aesni_dec)
 #endif
 	FRAME_END
 	ret
-ENDPROC(aesni_dec)
+SYM_FUNC_END(aesni_dec)
 
 /*
  * _aesni_dec1:		internal ABI
@@ -2324,7 +2324,7 @@ SYM_FUNC_END(_aesni_dec4)
  * void aesni_ecb_enc(struct crypto_aes_ctx *ctx, const u8 *dst, u8 *src,
  *		      size_t len)
  */
-ENTRY(aesni_ecb_enc)
+SYM_FUNC_START(aesni_ecb_enc)
 	FRAME_BEGIN
 #ifndef __x86_64__
 	pushl LEN
@@ -2378,13 +2378,13 @@ ENTRY(aesni_ecb_enc)
 #endif
 	FRAME_END
 	ret
-ENDPROC(aesni_ecb_enc)
+SYM_FUNC_END(aesni_ecb_enc)
 
 /*
  * void aesni_ecb_dec(struct crypto_aes_ctx *ctx, const u8 *dst, u8 *src,
  *		      size_t len);
  */
-ENTRY(aesni_ecb_dec)
+SYM_FUNC_START(aesni_ecb_dec)
 	FRAME_BEGIN
 #ifndef __x86_64__
 	pushl LEN
@@ -2439,13 +2439,13 @@ ENTRY(aesni_ecb_dec)
 #endif
 	FRAME_END
 	ret
-ENDPROC(aesni_ecb_dec)
+SYM_FUNC_END(aesni_ecb_dec)
 
 /*
  * void aesni_cbc_enc(struct crypto_aes_ctx *ctx, const u8 *dst, u8 *src,
  *		      size_t len, u8 *iv)
  */
-ENTRY(aesni_cbc_enc)
+SYM_FUNC_START(aesni_cbc_enc)
 	FRAME_BEGIN
 #ifndef __x86_64__
 	pushl IVP
@@ -2483,13 +2483,13 @@ ENTRY(aesni_cbc_enc)
 #endif
 	FRAME_END
 	ret
-ENDPROC(aesni_cbc_enc)
+SYM_FUNC_END(aesni_cbc_enc)
 
 /*
  * void aesni_cbc_dec(struct crypto_aes_ctx *ctx, const u8 *dst, u8 *src,
  *		      size_t len, u8 *iv)
  */
-ENTRY(aesni_cbc_dec)
+SYM_FUNC_START(aesni_cbc_dec)
 	FRAME_BEGIN
 #ifndef __x86_64__
 	pushl IVP
@@ -2576,7 +2576,7 @@ ENTRY(aesni_cbc_dec)
 #endif
 	FRAME_END
 	ret
-ENDPROC(aesni_cbc_dec)
+SYM_FUNC_END(aesni_cbc_dec)
 
 #ifdef __x86_64__
 .pushsection .rodata
@@ -2638,7 +2638,7 @@ SYM_FUNC_END(_aesni_inc)
  * void aesni_ctr_enc(struct crypto_aes_ctx *ctx, const u8 *dst, u8 *src,
  *		      size_t len, u8 *iv)
  */
-ENTRY(aesni_ctr_enc)
+SYM_FUNC_START(aesni_ctr_enc)
 	FRAME_BEGIN
 	cmp $16, LEN
 	jb .Lctr_enc_just_ret
@@ -2695,7 +2695,7 @@ ENTRY(aesni_ctr_enc)
 .Lctr_enc_just_ret:
 	FRAME_END
 	ret
-ENDPROC(aesni_ctr_enc)
+SYM_FUNC_END(aesni_ctr_enc)
 
 /*
  * _aesni_gf128mul_x_ble:		internal ABI
@@ -2719,7 +2719,7 @@ ENDPROC(aesni_ctr_enc)
  * void aesni_xts_crypt8(struct crypto_aes_ctx *ctx, const u8 *dst, u8 *src,
  *			 bool enc, u8 *iv)
  */
-ENTRY(aesni_xts_crypt8)
+SYM_FUNC_START(aesni_xts_crypt8)
 	FRAME_BEGIN
 	cmpb $0, %cl
 	movl $0, %ecx
@@ -2823,6 +2823,6 @@ ENTRY(aesni_xts_crypt8)
 
 	FRAME_END
 	ret
-ENDPROC(aesni_xts_crypt8)
+SYM_FUNC_END(aesni_xts_crypt8)
 
 #endif
diff --git a/arch/x86/crypto/aesni-intel_avx-x86_64.S b/arch/x86/crypto/aesni-intel_avx-x86_64.S
index 91c039ab5699..bfa1c0b3e5b4 100644
--- a/arch/x86/crypto/aesni-intel_avx-x86_64.S
+++ b/arch/x86/crypto/aesni-intel_avx-x86_64.S
@@ -1775,12 +1775,12 @@ _initial_blocks_done\@:
 #        const   u8 *aad, /* Additional Authentication Data (AAD)*/
 #        u64     aad_len) /* Length of AAD in bytes. With RFC4106 this is going to be 8 or 12 Bytes */
 #############################################################
-ENTRY(aesni_gcm_init_avx_gen2)
+SYM_FUNC_START(aesni_gcm_init_avx_gen2)
         FUNC_SAVE
         INIT GHASH_MUL_AVX, PRECOMPUTE_AVX
         FUNC_RESTORE
         ret
-ENDPROC(aesni_gcm_init_avx_gen2)
+SYM_FUNC_END(aesni_gcm_init_avx_gen2)
 
 ###############################################################################
 #void   aesni_gcm_enc_update_avx_gen2(
@@ -1790,7 +1790,7 @@ ENDPROC(aesni_gcm_init_avx_gen2)
 #        const   u8 *in, /* Plaintext input */
 #        u64     plaintext_len) /* Length of data in Bytes for encryption. */
 ###############################################################################
-ENTRY(aesni_gcm_enc_update_avx_gen2)
+SYM_FUNC_START(aesni_gcm_enc_update_avx_gen2)
         FUNC_SAVE
         mov     keysize, %eax
         cmp     $32, %eax
@@ -1809,7 +1809,7 @@ key_256_enc_update:
         GCM_ENC_DEC INITIAL_BLOCKS_AVX, GHASH_8_ENCRYPT_8_PARALLEL_AVX, GHASH_LAST_8_AVX, GHASH_MUL_AVX, ENC, 13
         FUNC_RESTORE
         ret
-ENDPROC(aesni_gcm_enc_update_avx_gen2)
+SYM_FUNC_END(aesni_gcm_enc_update_avx_gen2)
 
 ###############################################################################
 #void   aesni_gcm_dec_update_avx_gen2(
@@ -1819,7 +1819,7 @@ ENDPROC(aesni_gcm_enc_update_avx_gen2)
 #        const   u8 *in, /* Ciphertext input */
 #        u64     plaintext_len) /* Length of data in Bytes for encryption. */
 ###############################################################################
-ENTRY(aesni_gcm_dec_update_avx_gen2)
+SYM_FUNC_START(aesni_gcm_dec_update_avx_gen2)
         FUNC_SAVE
         mov     keysize,%eax
         cmp     $32, %eax
@@ -1838,7 +1838,7 @@ key_256_dec_update:
         GCM_ENC_DEC INITIAL_BLOCKS_AVX, GHASH_8_ENCRYPT_8_PARALLEL_AVX, GHASH_LAST_8_AVX, GHASH_MUL_AVX, DEC, 13
         FUNC_RESTORE
         ret
-ENDPROC(aesni_gcm_dec_update_avx_gen2)
+SYM_FUNC_END(aesni_gcm_dec_update_avx_gen2)
 
 ###############################################################################
 #void   aesni_gcm_finalize_avx_gen2(
@@ -1848,7 +1848,7 @@ ENDPROC(aesni_gcm_dec_update_avx_gen2)
 #        u64     auth_tag_len)# /* Authenticated Tag Length in bytes.
 #				Valid values are 16 (most likely), 12 or 8. */
 ###############################################################################
-ENTRY(aesni_gcm_finalize_avx_gen2)
+SYM_FUNC_START(aesni_gcm_finalize_avx_gen2)
         FUNC_SAVE
         mov	keysize,%eax
         cmp     $32, %eax
@@ -1867,7 +1867,7 @@ key_256_finalize:
         GCM_COMPLETE GHASH_MUL_AVX, 13, arg3, arg4
         FUNC_RESTORE
         ret
-ENDPROC(aesni_gcm_finalize_avx_gen2)
+SYM_FUNC_END(aesni_gcm_finalize_avx_gen2)
 
 #endif /* CONFIG_AS_AVX */
 
@@ -2746,12 +2746,12 @@ _initial_blocks_done\@:
 #        const   u8 *aad, /* Additional Authentication Data (AAD)*/
 #        u64     aad_len) /* Length of AAD in bytes. With RFC4106 this is going to be 8 or 12 Bytes */
 #############################################################
-ENTRY(aesni_gcm_init_avx_gen4)
+SYM_FUNC_START(aesni_gcm_init_avx_gen4)
         FUNC_SAVE
         INIT GHASH_MUL_AVX2, PRECOMPUTE_AVX2
         FUNC_RESTORE
         ret
-ENDPROC(aesni_gcm_init_avx_gen4)
+SYM_FUNC_END(aesni_gcm_init_avx_gen4)
 
 ###############################################################################
 #void   aesni_gcm_enc_avx_gen4(
@@ -2761,7 +2761,7 @@ ENDPROC(aesni_gcm_init_avx_gen4)
 #        const   u8 *in, /* Plaintext input */
 #        u64     plaintext_len) /* Length of data in Bytes for encryption. */
 ###############################################################################
-ENTRY(aesni_gcm_enc_update_avx_gen4)
+SYM_FUNC_START(aesni_gcm_enc_update_avx_gen4)
         FUNC_SAVE
         mov     keysize,%eax
         cmp     $32, %eax
@@ -2780,7 +2780,7 @@ key_256_enc_update4:
         GCM_ENC_DEC INITIAL_BLOCKS_AVX2, GHASH_8_ENCRYPT_8_PARALLEL_AVX2, GHASH_LAST_8_AVX2, GHASH_MUL_AVX2, ENC, 13
         FUNC_RESTORE
 	ret
-ENDPROC(aesni_gcm_enc_update_avx_gen4)
+SYM_FUNC_END(aesni_gcm_enc_update_avx_gen4)
 
 ###############################################################################
 #void   aesni_gcm_dec_update_avx_gen4(
@@ -2790,7 +2790,7 @@ ENDPROC(aesni_gcm_enc_update_avx_gen4)
 #        const   u8 *in, /* Ciphertext input */
 #        u64     plaintext_len) /* Length of data in Bytes for encryption. */
 ###############################################################################
-ENTRY(aesni_gcm_dec_update_avx_gen4)
+SYM_FUNC_START(aesni_gcm_dec_update_avx_gen4)
         FUNC_SAVE
         mov     keysize,%eax
         cmp     $32, %eax
@@ -2809,7 +2809,7 @@ key_256_dec_update4:
         GCM_ENC_DEC INITIAL_BLOCKS_AVX2, GHASH_8_ENCRYPT_8_PARALLEL_AVX2, GHASH_LAST_8_AVX2, GHASH_MUL_AVX2, DEC, 13
         FUNC_RESTORE
         ret
-ENDPROC(aesni_gcm_dec_update_avx_gen4)
+SYM_FUNC_END(aesni_gcm_dec_update_avx_gen4)
 
 ###############################################################################
 #void   aesni_gcm_finalize_avx_gen4(
@@ -2819,7 +2819,7 @@ ENDPROC(aesni_gcm_dec_update_avx_gen4)
 #        u64     auth_tag_len)# /* Authenticated Tag Length in bytes.
 #                              Valid values are 16 (most likely), 12 or 8. */
 ###############################################################################
-ENTRY(aesni_gcm_finalize_avx_gen4)
+SYM_FUNC_START(aesni_gcm_finalize_avx_gen4)
         FUNC_SAVE
         mov	keysize,%eax
         cmp     $32, %eax
@@ -2838,6 +2838,6 @@ key_256_finalize4:
         GCM_COMPLETE GHASH_MUL_AVX2, 13, arg3, arg4
         FUNC_RESTORE
         ret
-ENDPROC(aesni_gcm_finalize_avx_gen4)
+SYM_FUNC_END(aesni_gcm_finalize_avx_gen4)
 
 #endif /* CONFIG_AS_AVX2 */
diff --git a/arch/x86/crypto/blowfish-x86_64-asm_64.S b/arch/x86/crypto/blowfish-x86_64-asm_64.S
index 330db7a48af8..4222ac6d6584 100644
--- a/arch/x86/crypto/blowfish-x86_64-asm_64.S
+++ b/arch/x86/crypto/blowfish-x86_64-asm_64.S
@@ -103,7 +103,7 @@
 	bswapq 			RX0; \
 	xorq RX0, 		(RIO);
 
-ENTRY(__blowfish_enc_blk)
+SYM_FUNC_START(__blowfish_enc_blk)
 	/* input:
 	 *	%rdi: ctx
 	 *	%rsi: dst
@@ -139,9 +139,9 @@ ENTRY(__blowfish_enc_blk)
 .L__enc_xor:
 	xor_block();
 	ret;
-ENDPROC(__blowfish_enc_blk)
+SYM_FUNC_END(__blowfish_enc_blk)
 
-ENTRY(blowfish_dec_blk)
+SYM_FUNC_START(blowfish_dec_blk)
 	/* input:
 	 *	%rdi: ctx
 	 *	%rsi: dst
@@ -171,7 +171,7 @@ ENTRY(blowfish_dec_blk)
 	movq %r11, %r12;
 
 	ret;
-ENDPROC(blowfish_dec_blk)
+SYM_FUNC_END(blowfish_dec_blk)
 
 /**********************************************************************
   4-way blowfish, four blocks parallel
@@ -283,7 +283,7 @@ ENDPROC(blowfish_dec_blk)
 	bswapq 			RX3; \
 	xorq RX3,		24(RIO);
 
-ENTRY(__blowfish_enc_blk_4way)
+SYM_FUNC_START(__blowfish_enc_blk_4way)
 	/* input:
 	 *	%rdi: ctx
 	 *	%rsi: dst
@@ -330,9 +330,9 @@ ENTRY(__blowfish_enc_blk_4way)
 	popq %rbx;
 	popq %r12;
 	ret;
-ENDPROC(__blowfish_enc_blk_4way)
+SYM_FUNC_END(__blowfish_enc_blk_4way)
 
-ENTRY(blowfish_dec_blk_4way)
+SYM_FUNC_START(blowfish_dec_blk_4way)
 	/* input:
 	 *	%rdi: ctx
 	 *	%rsi: dst
@@ -365,4 +365,4 @@ ENTRY(blowfish_dec_blk_4way)
 	popq %r12;
 
 	ret;
-ENDPROC(blowfish_dec_blk_4way)
+SYM_FUNC_END(blowfish_dec_blk_4way)
diff --git a/arch/x86/crypto/camellia-aesni-avx-asm_64.S b/arch/x86/crypto/camellia-aesni-avx-asm_64.S
index f4408ca55fdb..d01ddd73de65 100644
--- a/arch/x86/crypto/camellia-aesni-avx-asm_64.S
+++ b/arch/x86/crypto/camellia-aesni-avx-asm_64.S
@@ -893,7 +893,7 @@ SYM_FUNC_START_LOCAL(__camellia_dec_blk16)
 	jmp .Ldec_max24;
 SYM_FUNC_END(__camellia_dec_blk16)
 
-ENTRY(camellia_ecb_enc_16way)
+SYM_FUNC_START(camellia_ecb_enc_16way)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst (16 blocks)
@@ -916,9 +916,9 @@ ENTRY(camellia_ecb_enc_16way)
 
 	FRAME_END
 	ret;
-ENDPROC(camellia_ecb_enc_16way)
+SYM_FUNC_END(camellia_ecb_enc_16way)
 
-ENTRY(camellia_ecb_dec_16way)
+SYM_FUNC_START(camellia_ecb_dec_16way)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst (16 blocks)
@@ -946,9 +946,9 @@ ENTRY(camellia_ecb_dec_16way)
 
 	FRAME_END
 	ret;
-ENDPROC(camellia_ecb_dec_16way)
+SYM_FUNC_END(camellia_ecb_dec_16way)
 
-ENTRY(camellia_cbc_dec_16way)
+SYM_FUNC_START(camellia_cbc_dec_16way)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst (16 blocks)
@@ -997,7 +997,7 @@ ENTRY(camellia_cbc_dec_16way)
 
 	FRAME_END
 	ret;
-ENDPROC(camellia_cbc_dec_16way)
+SYM_FUNC_END(camellia_cbc_dec_16way)
 
 #define inc_le128(x, minus_one, tmp) \
 	vpcmpeqq minus_one, x, tmp; \
@@ -1005,7 +1005,7 @@ ENDPROC(camellia_cbc_dec_16way)
 	vpslldq $8, tmp, tmp; \
 	vpsubq tmp, x, x;
 
-ENTRY(camellia_ctr_16way)
+SYM_FUNC_START(camellia_ctr_16way)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst (16 blocks)
@@ -1110,7 +1110,7 @@ ENTRY(camellia_ctr_16way)
 
 	FRAME_END
 	ret;
-ENDPROC(camellia_ctr_16way)
+SYM_FUNC_END(camellia_ctr_16way)
 
 #define gf128mul_x_ble(iv, mask, tmp) \
 	vpsrad $31, iv, tmp; \
@@ -1256,7 +1256,7 @@ SYM_FUNC_START_LOCAL(camellia_xts_crypt_16way)
 	ret;
 SYM_FUNC_END(camellia_xts_crypt_16way)
 
-ENTRY(camellia_xts_enc_16way)
+SYM_FUNC_START(camellia_xts_enc_16way)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst (16 blocks)
@@ -1268,9 +1268,9 @@ ENTRY(camellia_xts_enc_16way)
 	leaq __camellia_enc_blk16, %r9;
 
 	jmp camellia_xts_crypt_16way;
-ENDPROC(camellia_xts_enc_16way)
+SYM_FUNC_END(camellia_xts_enc_16way)
 
-ENTRY(camellia_xts_dec_16way)
+SYM_FUNC_START(camellia_xts_dec_16way)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst (16 blocks)
@@ -1286,4 +1286,4 @@ ENTRY(camellia_xts_dec_16way)
 	leaq __camellia_dec_blk16, %r9;
 
 	jmp camellia_xts_crypt_16way;
-ENDPROC(camellia_xts_dec_16way)
+SYM_FUNC_END(camellia_xts_dec_16way)
diff --git a/arch/x86/crypto/camellia-aesni-avx2-asm_64.S b/arch/x86/crypto/camellia-aesni-avx2-asm_64.S
index 72ae3edd0997..563ef6e83cdd 100644
--- a/arch/x86/crypto/camellia-aesni-avx2-asm_64.S
+++ b/arch/x86/crypto/camellia-aesni-avx2-asm_64.S
@@ -931,7 +931,7 @@ SYM_FUNC_START_LOCAL(__camellia_dec_blk32)
 	jmp .Ldec_max24;
 SYM_FUNC_END(__camellia_dec_blk32)
 
-ENTRY(camellia_ecb_enc_32way)
+SYM_FUNC_START(camellia_ecb_enc_32way)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst (32 blocks)
@@ -958,9 +958,9 @@ ENTRY(camellia_ecb_enc_32way)
 
 	FRAME_END
 	ret;
-ENDPROC(camellia_ecb_enc_32way)
+SYM_FUNC_END(camellia_ecb_enc_32way)
 
-ENTRY(camellia_ecb_dec_32way)
+SYM_FUNC_START(camellia_ecb_dec_32way)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst (32 blocks)
@@ -992,9 +992,9 @@ ENTRY(camellia_ecb_dec_32way)
 
 	FRAME_END
 	ret;
-ENDPROC(camellia_ecb_dec_32way)
+SYM_FUNC_END(camellia_ecb_dec_32way)
 
-ENTRY(camellia_cbc_dec_32way)
+SYM_FUNC_START(camellia_cbc_dec_32way)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst (32 blocks)
@@ -1060,7 +1060,7 @@ ENTRY(camellia_cbc_dec_32way)
 
 	FRAME_END
 	ret;
-ENDPROC(camellia_cbc_dec_32way)
+SYM_FUNC_END(camellia_cbc_dec_32way)
 
 #define inc_le128(x, minus_one, tmp) \
 	vpcmpeqq minus_one, x, tmp; \
@@ -1076,7 +1076,7 @@ ENDPROC(camellia_cbc_dec_32way)
 	vpslldq $8, tmp1, tmp1; \
 	vpsubq tmp1, x, x;
 
-ENTRY(camellia_ctr_32way)
+SYM_FUNC_START(camellia_ctr_32way)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst (32 blocks)
@@ -1200,7 +1200,7 @@ ENTRY(camellia_ctr_32way)
 
 	FRAME_END
 	ret;
-ENDPROC(camellia_ctr_32way)
+SYM_FUNC_END(camellia_ctr_32way)
 
 #define gf128mul_x_ble(iv, mask, tmp) \
 	vpsrad $31, iv, tmp; \
@@ -1369,7 +1369,7 @@ SYM_FUNC_START_LOCAL(camellia_xts_crypt_32way)
 	ret;
 SYM_FUNC_END(camellia_xts_crypt_32way)
 
-ENTRY(camellia_xts_enc_32way)
+SYM_FUNC_START(camellia_xts_enc_32way)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst (32 blocks)
@@ -1382,9 +1382,9 @@ ENTRY(camellia_xts_enc_32way)
 	leaq __camellia_enc_blk32, %r9;
 
 	jmp camellia_xts_crypt_32way;
-ENDPROC(camellia_xts_enc_32way)
+SYM_FUNC_END(camellia_xts_enc_32way)
 
-ENTRY(camellia_xts_dec_32way)
+SYM_FUNC_START(camellia_xts_dec_32way)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst (32 blocks)
@@ -1400,4 +1400,4 @@ ENTRY(camellia_xts_dec_32way)
 	leaq __camellia_dec_blk32, %r9;
 
 	jmp camellia_xts_crypt_32way;
-ENDPROC(camellia_xts_dec_32way)
+SYM_FUNC_END(camellia_xts_dec_32way)
diff --git a/arch/x86/crypto/camellia-x86_64-asm_64.S b/arch/x86/crypto/camellia-x86_64-asm_64.S
index 23528bc18fc6..1372e6408850 100644
--- a/arch/x86/crypto/camellia-x86_64-asm_64.S
+++ b/arch/x86/crypto/camellia-x86_64-asm_64.S
@@ -175,7 +175,7 @@
 	bswapq				RAB0; \
 	movq RAB0,			4*2(RIO);
 
-ENTRY(__camellia_enc_blk)
+SYM_FUNC_START(__camellia_enc_blk)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst
@@ -220,9 +220,9 @@ ENTRY(__camellia_enc_blk)
 
 	movq RR12, %r12;
 	ret;
-ENDPROC(__camellia_enc_blk)
+SYM_FUNC_END(__camellia_enc_blk)
 
-ENTRY(camellia_dec_blk)
+SYM_FUNC_START(camellia_dec_blk)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst
@@ -258,7 +258,7 @@ ENTRY(camellia_dec_blk)
 
 	movq RR12, %r12;
 	ret;
-ENDPROC(camellia_dec_blk)
+SYM_FUNC_END(camellia_dec_blk)
 
 /**********************************************************************
   2-way camellia
@@ -409,7 +409,7 @@ ENDPROC(camellia_dec_blk)
 		bswapq				RAB1; \
 		movq RAB1,			12*2(RIO);
 
-ENTRY(__camellia_enc_blk_2way)
+SYM_FUNC_START(__camellia_enc_blk_2way)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst
@@ -456,9 +456,9 @@ ENTRY(__camellia_enc_blk_2way)
 	movq RR12, %r12;
 	popq %rbx;
 	ret;
-ENDPROC(__camellia_enc_blk_2way)
+SYM_FUNC_END(__camellia_enc_blk_2way)
 
-ENTRY(camellia_dec_blk_2way)
+SYM_FUNC_START(camellia_dec_blk_2way)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst
@@ -496,4 +496,4 @@ ENTRY(camellia_dec_blk_2way)
 	movq RR12, %r12;
 	movq RXOR, %rbx;
 	ret;
-ENDPROC(camellia_dec_blk_2way)
+SYM_FUNC_END(camellia_dec_blk_2way)
diff --git a/arch/x86/crypto/cast5-avx-x86_64-asm_64.S b/arch/x86/crypto/cast5-avx-x86_64-asm_64.S
index ef86c6a966de..8a6181b08b59 100644
--- a/arch/x86/crypto/cast5-avx-x86_64-asm_64.S
+++ b/arch/x86/crypto/cast5-avx-x86_64-asm_64.S
@@ -359,7 +359,7 @@ SYM_FUNC_START_LOCAL(__cast5_dec_blk16)
 	jmp .L__dec_tail;
 SYM_FUNC_END(__cast5_dec_blk16)
 
-ENTRY(cast5_ecb_enc_16way)
+SYM_FUNC_START(cast5_ecb_enc_16way)
 	/* input:
 	 *	%rdi: ctx
 	 *	%rsi: dst
@@ -394,9 +394,9 @@ ENTRY(cast5_ecb_enc_16way)
 	popq %r15;
 	FRAME_END
 	ret;
-ENDPROC(cast5_ecb_enc_16way)
+SYM_FUNC_END(cast5_ecb_enc_16way)
 
-ENTRY(cast5_ecb_dec_16way)
+SYM_FUNC_START(cast5_ecb_dec_16way)
 	/* input:
 	 *	%rdi: ctx
 	 *	%rsi: dst
@@ -432,9 +432,9 @@ ENTRY(cast5_ecb_dec_16way)
 	popq %r15;
 	FRAME_END
 	ret;
-ENDPROC(cast5_ecb_dec_16way)
+SYM_FUNC_END(cast5_ecb_dec_16way)
 
-ENTRY(cast5_cbc_dec_16way)
+SYM_FUNC_START(cast5_cbc_dec_16way)
 	/* input:
 	 *	%rdi: ctx
 	 *	%rsi: dst
@@ -484,9 +484,9 @@ ENTRY(cast5_cbc_dec_16way)
 	popq %r12;
 	FRAME_END
 	ret;
-ENDPROC(cast5_cbc_dec_16way)
+SYM_FUNC_END(cast5_cbc_dec_16way)
 
-ENTRY(cast5_ctr_16way)
+SYM_FUNC_START(cast5_ctr_16way)
 	/* input:
 	 *	%rdi: ctx
 	 *	%rsi: dst
@@ -560,4 +560,4 @@ ENTRY(cast5_ctr_16way)
 	popq %r12;
 	FRAME_END
 	ret;
-ENDPROC(cast5_ctr_16way)
+SYM_FUNC_END(cast5_ctr_16way)
diff --git a/arch/x86/crypto/cast6-avx-x86_64-asm_64.S b/arch/x86/crypto/cast6-avx-x86_64-asm_64.S
index b080a7454e70..932a3ce32a88 100644
--- a/arch/x86/crypto/cast6-avx-x86_64-asm_64.S
+++ b/arch/x86/crypto/cast6-avx-x86_64-asm_64.S
@@ -341,7 +341,7 @@ SYM_FUNC_START_LOCAL(__cast6_dec_blk8)
 	ret;
 SYM_FUNC_END(__cast6_dec_blk8)
 
-ENTRY(cast6_ecb_enc_8way)
+SYM_FUNC_START(cast6_ecb_enc_8way)
 	/* input:
 	 *	%rdi: ctx
 	 *	%rsi: dst
@@ -362,9 +362,9 @@ ENTRY(cast6_ecb_enc_8way)
 	popq %r15;
 	FRAME_END
 	ret;
-ENDPROC(cast6_ecb_enc_8way)
+SYM_FUNC_END(cast6_ecb_enc_8way)
 
-ENTRY(cast6_ecb_dec_8way)
+SYM_FUNC_START(cast6_ecb_dec_8way)
 	/* input:
 	 *	%rdi: ctx
 	 *	%rsi: dst
@@ -385,9 +385,9 @@ ENTRY(cast6_ecb_dec_8way)
 	popq %r15;
 	FRAME_END
 	ret;
-ENDPROC(cast6_ecb_dec_8way)
+SYM_FUNC_END(cast6_ecb_dec_8way)
 
-ENTRY(cast6_cbc_dec_8way)
+SYM_FUNC_START(cast6_cbc_dec_8way)
 	/* input:
 	 *	%rdi: ctx
 	 *	%rsi: dst
@@ -411,9 +411,9 @@ ENTRY(cast6_cbc_dec_8way)
 	popq %r12;
 	FRAME_END
 	ret;
-ENDPROC(cast6_cbc_dec_8way)
+SYM_FUNC_END(cast6_cbc_dec_8way)
 
-ENTRY(cast6_ctr_8way)
+SYM_FUNC_START(cast6_ctr_8way)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst
@@ -439,9 +439,9 @@ ENTRY(cast6_ctr_8way)
 	popq %r12;
 	FRAME_END
 	ret;
-ENDPROC(cast6_ctr_8way)
+SYM_FUNC_END(cast6_ctr_8way)
 
-ENTRY(cast6_xts_enc_8way)
+SYM_FUNC_START(cast6_xts_enc_8way)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst
@@ -466,9 +466,9 @@ ENTRY(cast6_xts_enc_8way)
 	popq %r15;
 	FRAME_END
 	ret;
-ENDPROC(cast6_xts_enc_8way)
+SYM_FUNC_END(cast6_xts_enc_8way)
 
-ENTRY(cast6_xts_dec_8way)
+SYM_FUNC_START(cast6_xts_dec_8way)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst
@@ -493,4 +493,4 @@ ENTRY(cast6_xts_dec_8way)
 	popq %r15;
 	FRAME_END
 	ret;
-ENDPROC(cast6_xts_dec_8way)
+SYM_FUNC_END(cast6_xts_dec_8way)
diff --git a/arch/x86/crypto/chacha-avx2-x86_64.S b/arch/x86/crypto/chacha-avx2-x86_64.S
index 831e4434fc20..ee9a40ab4109 100644
--- a/arch/x86/crypto/chacha-avx2-x86_64.S
+++ b/arch/x86/crypto/chacha-avx2-x86_64.S
@@ -34,7 +34,7 @@ CTR4BL:	.octa 0x00000000000000000000000000000002
 
 .text
 
-ENTRY(chacha_2block_xor_avx2)
+SYM_FUNC_START(chacha_2block_xor_avx2)
 	# %rdi: Input state matrix, s
 	# %rsi: up to 2 data blocks output, o
 	# %rdx: up to 2 data blocks input, i
@@ -224,9 +224,9 @@ ENTRY(chacha_2block_xor_avx2)
 	lea		-8(%r10),%rsp
 	jmp		.Ldone2
 
-ENDPROC(chacha_2block_xor_avx2)
+SYM_FUNC_END(chacha_2block_xor_avx2)
 
-ENTRY(chacha_4block_xor_avx2)
+SYM_FUNC_START(chacha_4block_xor_avx2)
 	# %rdi: Input state matrix, s
 	# %rsi: up to 4 data blocks output, o
 	# %rdx: up to 4 data blocks input, i
@@ -529,9 +529,9 @@ ENTRY(chacha_4block_xor_avx2)
 	lea		-8(%r10),%rsp
 	jmp		.Ldone4
 
-ENDPROC(chacha_4block_xor_avx2)
+SYM_FUNC_END(chacha_4block_xor_avx2)
 
-ENTRY(chacha_8block_xor_avx2)
+SYM_FUNC_START(chacha_8block_xor_avx2)
 	# %rdi: Input state matrix, s
 	# %rsi: up to 8 data blocks output, o
 	# %rdx: up to 8 data blocks input, i
@@ -1018,4 +1018,4 @@ ENTRY(chacha_8block_xor_avx2)
 
 	jmp		.Ldone8
 
-ENDPROC(chacha_8block_xor_avx2)
+SYM_FUNC_END(chacha_8block_xor_avx2)
diff --git a/arch/x86/crypto/chacha-avx512vl-x86_64.S b/arch/x86/crypto/chacha-avx512vl-x86_64.S
index 848f9c75fd4f..bb193fde123a 100644
--- a/arch/x86/crypto/chacha-avx512vl-x86_64.S
+++ b/arch/x86/crypto/chacha-avx512vl-x86_64.S
@@ -24,7 +24,7 @@ CTR8BL:	.octa 0x00000003000000020000000100000000
 
 .text
 
-ENTRY(chacha_2block_xor_avx512vl)
+SYM_FUNC_START(chacha_2block_xor_avx512vl)
 	# %rdi: Input state matrix, s
 	# %rsi: up to 2 data blocks output, o
 	# %rdx: up to 2 data blocks input, i
@@ -187,9 +187,9 @@ ENTRY(chacha_2block_xor_avx512vl)
 
 	jmp		.Ldone2
 
-ENDPROC(chacha_2block_xor_avx512vl)
+SYM_FUNC_END(chacha_2block_xor_avx512vl)
 
-ENTRY(chacha_4block_xor_avx512vl)
+SYM_FUNC_START(chacha_4block_xor_avx512vl)
 	# %rdi: Input state matrix, s
 	# %rsi: up to 4 data blocks output, o
 	# %rdx: up to 4 data blocks input, i
@@ -453,9 +453,9 @@ ENTRY(chacha_4block_xor_avx512vl)
 
 	jmp		.Ldone4
 
-ENDPROC(chacha_4block_xor_avx512vl)
+SYM_FUNC_END(chacha_4block_xor_avx512vl)
 
-ENTRY(chacha_8block_xor_avx512vl)
+SYM_FUNC_START(chacha_8block_xor_avx512vl)
 	# %rdi: Input state matrix, s
 	# %rsi: up to 8 data blocks output, o
 	# %rdx: up to 8 data blocks input, i
@@ -833,4 +833,4 @@ ENTRY(chacha_8block_xor_avx512vl)
 
 	jmp		.Ldone8
 
-ENDPROC(chacha_8block_xor_avx512vl)
+SYM_FUNC_END(chacha_8block_xor_avx512vl)
diff --git a/arch/x86/crypto/chacha-ssse3-x86_64.S b/arch/x86/crypto/chacha-ssse3-x86_64.S
index 361d2bfc253c..a38ab2512a6f 100644
--- a/arch/x86/crypto/chacha-ssse3-x86_64.S
+++ b/arch/x86/crypto/chacha-ssse3-x86_64.S
@@ -111,7 +111,7 @@ SYM_FUNC_START_LOCAL(chacha_permute)
 	ret
 SYM_FUNC_END(chacha_permute)
 
-ENTRY(chacha_block_xor_ssse3)
+SYM_FUNC_START(chacha_block_xor_ssse3)
 	# %rdi: Input state matrix, s
 	# %rsi: up to 1 data block output, o
 	# %rdx: up to 1 data block input, i
@@ -197,9 +197,9 @@ ENTRY(chacha_block_xor_ssse3)
 	lea		-8(%r10),%rsp
 	jmp		.Ldone
 
-ENDPROC(chacha_block_xor_ssse3)
+SYM_FUNC_END(chacha_block_xor_ssse3)
 
-ENTRY(hchacha_block_ssse3)
+SYM_FUNC_START(hchacha_block_ssse3)
 	# %rdi: Input state matrix, s
 	# %rsi: output (8 32-bit words)
 	# %edx: nrounds
@@ -218,9 +218,9 @@ ENTRY(hchacha_block_ssse3)
 
 	FRAME_END
 	ret
-ENDPROC(hchacha_block_ssse3)
+SYM_FUNC_END(hchacha_block_ssse3)
 
-ENTRY(chacha_4block_xor_ssse3)
+SYM_FUNC_START(chacha_4block_xor_ssse3)
 	# %rdi: Input state matrix, s
 	# %rsi: up to 4 data blocks output, o
 	# %rdx: up to 4 data blocks input, i
@@ -788,4 +788,4 @@ ENTRY(chacha_4block_xor_ssse3)
 
 	jmp		.Ldone4
 
-ENDPROC(chacha_4block_xor_ssse3)
+SYM_FUNC_END(chacha_4block_xor_ssse3)
diff --git a/arch/x86/crypto/crc32-pclmul_asm.S b/arch/x86/crypto/crc32-pclmul_asm.S
index 1c099dc08cc3..9fd28ff65bc2 100644
--- a/arch/x86/crypto/crc32-pclmul_asm.S
+++ b/arch/x86/crypto/crc32-pclmul_asm.S
@@ -103,7 +103,7 @@
  *	                     size_t len, uint crc32)
  */
 
-ENTRY(crc32_pclmul_le_16) /* buffer and buffer size are 16 bytes aligned */
+SYM_FUNC_START(crc32_pclmul_le_16) /* buffer and buffer size are 16 bytes aligned */
 	movdqa  (BUF), %xmm1
 	movdqa  0x10(BUF), %xmm2
 	movdqa  0x20(BUF), %xmm3
@@ -238,4 +238,4 @@ fold_64:
 	PEXTRD  0x01, %xmm1, %eax
 
 	ret
-ENDPROC(crc32_pclmul_le_16)
+SYM_FUNC_END(crc32_pclmul_le_16)
diff --git a/arch/x86/crypto/crc32c-pcl-intel-asm_64.S b/arch/x86/crypto/crc32c-pcl-intel-asm_64.S
index d9b734d0c8cc..0e6690e3618c 100644
--- a/arch/x86/crypto/crc32c-pcl-intel-asm_64.S
+++ b/arch/x86/crypto/crc32c-pcl-intel-asm_64.S
@@ -74,7 +74,7 @@
 # unsigned int crc_pcl(u8 *buffer, int len, unsigned int crc_init);
 
 .text
-ENTRY(crc_pcl)
+SYM_FUNC_START(crc_pcl)
 #define    bufp		%rdi
 #define    bufp_dw	%edi
 #define    bufp_w	%di
@@ -311,7 +311,7 @@ do_return:
 	popq    %rdi
 	popq    %rbx
         ret
-ENDPROC(crc_pcl)
+SYM_FUNC_END(crc_pcl)
 
 .section	.rodata, "a", @progbits
         ################################################################
diff --git a/arch/x86/crypto/crct10dif-pcl-asm_64.S b/arch/x86/crypto/crct10dif-pcl-asm_64.S
index 3d873e67749d..b2533d63030e 100644
--- a/arch/x86/crypto/crct10dif-pcl-asm_64.S
+++ b/arch/x86/crypto/crct10dif-pcl-asm_64.S
@@ -95,7 +95,7 @@
 # Assumes len >= 16.
 #
 .align 16
-ENTRY(crc_t10dif_pcl)
+SYM_FUNC_START(crc_t10dif_pcl)
 
 	movdqa	.Lbswap_mask(%rip), BSWAP_MASK
 
@@ -280,7 +280,7 @@ ENTRY(crc_t10dif_pcl)
 	jge	.Lfold_16_bytes_loop		# 32 <= len <= 255
 	add	$16, len
 	jmp	.Lhandle_partial_segment	# 17 <= len <= 31
-ENDPROC(crc_t10dif_pcl)
+SYM_FUNC_END(crc_t10dif_pcl)
 
 .section	.rodata, "a", @progbits
 .align 16
diff --git a/arch/x86/crypto/des3_ede-asm_64.S b/arch/x86/crypto/des3_ede-asm_64.S
index 7fca43099a5f..fac0fdc3f25d 100644
--- a/arch/x86/crypto/des3_ede-asm_64.S
+++ b/arch/x86/crypto/des3_ede-asm_64.S
@@ -162,7 +162,7 @@
 	movl   left##d,   (io); \
 	movl   right##d, 4(io);
 
-ENTRY(des3_ede_x86_64_crypt_blk)
+SYM_FUNC_START(des3_ede_x86_64_crypt_blk)
 	/* input:
 	 *	%rdi: round keys, CTX
 	 *	%rsi: dst
@@ -244,7 +244,7 @@ ENTRY(des3_ede_x86_64_crypt_blk)
 	popq %rbx;
 
 	ret;
-ENDPROC(des3_ede_x86_64_crypt_blk)
+SYM_FUNC_END(des3_ede_x86_64_crypt_blk)
 
 /***********************************************************************
  * 3-way 3DES
@@ -418,7 +418,7 @@ ENDPROC(des3_ede_x86_64_crypt_blk)
 #define __movq(src, dst) \
 	movq src, dst;
 
-ENTRY(des3_ede_x86_64_crypt_blk_3way)
+SYM_FUNC_START(des3_ede_x86_64_crypt_blk_3way)
 	/* input:
 	 *	%rdi: ctx, round keys
 	 *	%rsi: dst (3 blocks)
@@ -529,7 +529,7 @@ ENTRY(des3_ede_x86_64_crypt_blk_3way)
 	popq %rbx;
 
 	ret;
-ENDPROC(des3_ede_x86_64_crypt_blk_3way)
+SYM_FUNC_END(des3_ede_x86_64_crypt_blk_3way)
 
 .section	.rodata, "a", @progbits
 .align 16
diff --git a/arch/x86/crypto/ghash-clmulni-intel_asm.S b/arch/x86/crypto/ghash-clmulni-intel_asm.S
index e81da25a33ca..bb9735fbb865 100644
--- a/arch/x86/crypto/ghash-clmulni-intel_asm.S
+++ b/arch/x86/crypto/ghash-clmulni-intel_asm.S
@@ -90,7 +90,7 @@ SYM_FUNC_START_LOCAL(__clmul_gf128mul_ble)
 SYM_FUNC_END(__clmul_gf128mul_ble)
 
 /* void clmul_ghash_mul(char *dst, const u128 *shash) */
-ENTRY(clmul_ghash_mul)
+SYM_FUNC_START(clmul_ghash_mul)
 	FRAME_BEGIN
 	movups (%rdi), DATA
 	movups (%rsi), SHASH
@@ -101,13 +101,13 @@ ENTRY(clmul_ghash_mul)
 	movups DATA, (%rdi)
 	FRAME_END
 	ret
-ENDPROC(clmul_ghash_mul)
+SYM_FUNC_END(clmul_ghash_mul)
 
 /*
  * void clmul_ghash_update(char *dst, const char *src, unsigned int srclen,
  *			   const u128 *shash);
  */
-ENTRY(clmul_ghash_update)
+SYM_FUNC_START(clmul_ghash_update)
 	FRAME_BEGIN
 	cmp $16, %rdx
 	jb .Lupdate_just_ret	# check length
@@ -130,4 +130,4 @@ ENTRY(clmul_ghash_update)
 .Lupdate_just_ret:
 	FRAME_END
 	ret
-ENDPROC(clmul_ghash_update)
+SYM_FUNC_END(clmul_ghash_update)
diff --git a/arch/x86/crypto/nh-avx2-x86_64.S b/arch/x86/crypto/nh-avx2-x86_64.S
index f7946ea1b704..b22c7b936272 100644
--- a/arch/x86/crypto/nh-avx2-x86_64.S
+++ b/arch/x86/crypto/nh-avx2-x86_64.S
@@ -69,7 +69,7 @@
  *
  * It's guaranteed that message_len % 16 == 0.
  */
-ENTRY(nh_avx2)
+SYM_FUNC_START(nh_avx2)
 
 	vmovdqu		0x00(KEY), K0
 	vmovdqu		0x10(KEY), K1
@@ -154,4 +154,4 @@ ENTRY(nh_avx2)
 	vpaddq		T4, T0, T0
 	vmovdqu		T0, (HASH)
 	ret
-ENDPROC(nh_avx2)
+SYM_FUNC_END(nh_avx2)
diff --git a/arch/x86/crypto/nh-sse2-x86_64.S b/arch/x86/crypto/nh-sse2-x86_64.S
index 51f52d4ab4bb..d7ae22dd6683 100644
--- a/arch/x86/crypto/nh-sse2-x86_64.S
+++ b/arch/x86/crypto/nh-sse2-x86_64.S
@@ -71,7 +71,7 @@
  *
  * It's guaranteed that message_len % 16 == 0.
  */
-ENTRY(nh_sse2)
+SYM_FUNC_START(nh_sse2)
 
 	movdqu		0x00(KEY), K0
 	movdqu		0x10(KEY), K1
@@ -120,4 +120,4 @@ ENTRY(nh_sse2)
 	movdqu		T0, 0x00(HASH)
 	movdqu		T1, 0x10(HASH)
 	ret
-ENDPROC(nh_sse2)
+SYM_FUNC_END(nh_sse2)
diff --git a/arch/x86/crypto/poly1305-avx2-x86_64.S b/arch/x86/crypto/poly1305-avx2-x86_64.S
index 8b341bc29d41..d6063feda9da 100644
--- a/arch/x86/crypto/poly1305-avx2-x86_64.S
+++ b/arch/x86/crypto/poly1305-avx2-x86_64.S
@@ -79,7 +79,7 @@ ORMASK:	.octa 0x00000000010000000000000001000000
 #define d3 %r12
 #define d4 %r13
 
-ENTRY(poly1305_4block_avx2)
+SYM_FUNC_START(poly1305_4block_avx2)
 	# %rdi: Accumulator h[5]
 	# %rsi: 64 byte input block m
 	# %rdx: Poly1305 key r[5]
@@ -387,4 +387,4 @@ ENTRY(poly1305_4block_avx2)
 	pop		%r12
 	pop		%rbx
 	ret
-ENDPROC(poly1305_4block_avx2)
+SYM_FUNC_END(poly1305_4block_avx2)
diff --git a/arch/x86/crypto/poly1305-sse2-x86_64.S b/arch/x86/crypto/poly1305-sse2-x86_64.S
index 5578f846e622..d8ea29b96640 100644
--- a/arch/x86/crypto/poly1305-sse2-x86_64.S
+++ b/arch/x86/crypto/poly1305-sse2-x86_64.S
@@ -46,7 +46,7 @@ ORMASK:	.octa 0x00000000010000000000000001000000
 #define d3 %r11
 #define d4 %r12
 
-ENTRY(poly1305_block_sse2)
+SYM_FUNC_START(poly1305_block_sse2)
 	# %rdi: Accumulator h[5]
 	# %rsi: 16 byte input block m
 	# %rdx: Poly1305 key r[5]
@@ -276,7 +276,7 @@ ENTRY(poly1305_block_sse2)
 	pop		%r12
 	pop		%rbx
 	ret
-ENDPROC(poly1305_block_sse2)
+SYM_FUNC_END(poly1305_block_sse2)
 
 
 #define u0 0x00(%r8)
@@ -301,7 +301,7 @@ ENDPROC(poly1305_block_sse2)
 #undef d0
 #define d0 %r13
 
-ENTRY(poly1305_2block_sse2)
+SYM_FUNC_START(poly1305_2block_sse2)
 	# %rdi: Accumulator h[5]
 	# %rsi: 16 byte input block m
 	# %rdx: Poly1305 key r[5]
@@ -587,4 +587,4 @@ ENTRY(poly1305_2block_sse2)
 	pop		%r12
 	pop		%rbx
 	ret
-ENDPROC(poly1305_2block_sse2)
+SYM_FUNC_END(poly1305_2block_sse2)
diff --git a/arch/x86/crypto/serpent-avx-x86_64-asm_64.S b/arch/x86/crypto/serpent-avx-x86_64-asm_64.S
index a098aa015784..ba9e4c1e7f5c 100644
--- a/arch/x86/crypto/serpent-avx-x86_64-asm_64.S
+++ b/arch/x86/crypto/serpent-avx-x86_64-asm_64.S
@@ -662,7 +662,7 @@ SYM_FUNC_START_LOCAL(__serpent_dec_blk8_avx)
 	ret;
 SYM_FUNC_END(__serpent_dec_blk8_avx)
 
-ENTRY(serpent_ecb_enc_8way_avx)
+SYM_FUNC_START(serpent_ecb_enc_8way_avx)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst
@@ -678,9 +678,9 @@ ENTRY(serpent_ecb_enc_8way_avx)
 
 	FRAME_END
 	ret;
-ENDPROC(serpent_ecb_enc_8way_avx)
+SYM_FUNC_END(serpent_ecb_enc_8way_avx)
 
-ENTRY(serpent_ecb_dec_8way_avx)
+SYM_FUNC_START(serpent_ecb_dec_8way_avx)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst
@@ -696,9 +696,9 @@ ENTRY(serpent_ecb_dec_8way_avx)
 
 	FRAME_END
 	ret;
-ENDPROC(serpent_ecb_dec_8way_avx)
+SYM_FUNC_END(serpent_ecb_dec_8way_avx)
 
-ENTRY(serpent_cbc_dec_8way_avx)
+SYM_FUNC_START(serpent_cbc_dec_8way_avx)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst
@@ -714,9 +714,9 @@ ENTRY(serpent_cbc_dec_8way_avx)
 
 	FRAME_END
 	ret;
-ENDPROC(serpent_cbc_dec_8way_avx)
+SYM_FUNC_END(serpent_cbc_dec_8way_avx)
 
-ENTRY(serpent_ctr_8way_avx)
+SYM_FUNC_START(serpent_ctr_8way_avx)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst
@@ -734,9 +734,9 @@ ENTRY(serpent_ctr_8way_avx)
 
 	FRAME_END
 	ret;
-ENDPROC(serpent_ctr_8way_avx)
+SYM_FUNC_END(serpent_ctr_8way_avx)
 
-ENTRY(serpent_xts_enc_8way_avx)
+SYM_FUNC_START(serpent_xts_enc_8way_avx)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst
@@ -756,9 +756,9 @@ ENTRY(serpent_xts_enc_8way_avx)
 
 	FRAME_END
 	ret;
-ENDPROC(serpent_xts_enc_8way_avx)
+SYM_FUNC_END(serpent_xts_enc_8way_avx)
 
-ENTRY(serpent_xts_dec_8way_avx)
+SYM_FUNC_START(serpent_xts_dec_8way_avx)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst
@@ -778,4 +778,4 @@ ENTRY(serpent_xts_dec_8way_avx)
 
 	FRAME_END
 	ret;
-ENDPROC(serpent_xts_dec_8way_avx)
+SYM_FUNC_END(serpent_xts_dec_8way_avx)
diff --git a/arch/x86/crypto/serpent-avx2-asm_64.S b/arch/x86/crypto/serpent-avx2-asm_64.S
index 6149ba80b4d1..c9648aeae705 100644
--- a/arch/x86/crypto/serpent-avx2-asm_64.S
+++ b/arch/x86/crypto/serpent-avx2-asm_64.S
@@ -668,7 +668,7 @@ SYM_FUNC_START_LOCAL(__serpent_dec_blk16)
 	ret;
 SYM_FUNC_END(__serpent_dec_blk16)
 
-ENTRY(serpent_ecb_enc_16way)
+SYM_FUNC_START(serpent_ecb_enc_16way)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst
@@ -688,9 +688,9 @@ ENTRY(serpent_ecb_enc_16way)
 
 	FRAME_END
 	ret;
-ENDPROC(serpent_ecb_enc_16way)
+SYM_FUNC_END(serpent_ecb_enc_16way)
 
-ENTRY(serpent_ecb_dec_16way)
+SYM_FUNC_START(serpent_ecb_dec_16way)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst
@@ -710,9 +710,9 @@ ENTRY(serpent_ecb_dec_16way)
 
 	FRAME_END
 	ret;
-ENDPROC(serpent_ecb_dec_16way)
+SYM_FUNC_END(serpent_ecb_dec_16way)
 
-ENTRY(serpent_cbc_dec_16way)
+SYM_FUNC_START(serpent_cbc_dec_16way)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst
@@ -733,9 +733,9 @@ ENTRY(serpent_cbc_dec_16way)
 
 	FRAME_END
 	ret;
-ENDPROC(serpent_cbc_dec_16way)
+SYM_FUNC_END(serpent_cbc_dec_16way)
 
-ENTRY(serpent_ctr_16way)
+SYM_FUNC_START(serpent_ctr_16way)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst (16 blocks)
@@ -758,9 +758,9 @@ ENTRY(serpent_ctr_16way)
 
 	FRAME_END
 	ret;
-ENDPROC(serpent_ctr_16way)
+SYM_FUNC_END(serpent_ctr_16way)
 
-ENTRY(serpent_xts_enc_16way)
+SYM_FUNC_START(serpent_xts_enc_16way)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst (16 blocks)
@@ -784,9 +784,9 @@ ENTRY(serpent_xts_enc_16way)
 
 	FRAME_END
 	ret;
-ENDPROC(serpent_xts_enc_16way)
+SYM_FUNC_END(serpent_xts_enc_16way)
 
-ENTRY(serpent_xts_dec_16way)
+SYM_FUNC_START(serpent_xts_dec_16way)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst (16 blocks)
@@ -810,4 +810,4 @@ ENTRY(serpent_xts_dec_16way)
 
 	FRAME_END
 	ret;
-ENDPROC(serpent_xts_dec_16way)
+SYM_FUNC_END(serpent_xts_dec_16way)
diff --git a/arch/x86/crypto/serpent-sse2-x86_64-asm_64.S b/arch/x86/crypto/serpent-sse2-x86_64-asm_64.S
index 5e0b3a3e97af..efb6dc17dc90 100644
--- a/arch/x86/crypto/serpent-sse2-x86_64-asm_64.S
+++ b/arch/x86/crypto/serpent-sse2-x86_64-asm_64.S
@@ -619,7 +619,7 @@
 	pxor t0,		x3; \
 	movdqu x3,		(3*4*4)(out);
 
-ENTRY(__serpent_enc_blk_8way)
+SYM_FUNC_START(__serpent_enc_blk_8way)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst
@@ -682,9 +682,9 @@ ENTRY(__serpent_enc_blk_8way)
 	xor_blocks(%rax, RA2, RB2, RC2, RD2, RK0, RK1, RK2);
 
 	ret;
-ENDPROC(__serpent_enc_blk_8way)
+SYM_FUNC_END(__serpent_enc_blk_8way)
 
-ENTRY(serpent_dec_blk_8way)
+SYM_FUNC_START(serpent_dec_blk_8way)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst
@@ -736,4 +736,4 @@ ENTRY(serpent_dec_blk_8way)
 	write_blocks(%rax, RC2, RD2, RB2, RE2, RK0, RK1, RK2);
 
 	ret;
-ENDPROC(serpent_dec_blk_8way)
+SYM_FUNC_END(serpent_dec_blk_8way)
diff --git a/arch/x86/crypto/sha1_avx2_x86_64_asm.S b/arch/x86/crypto/sha1_avx2_x86_64_asm.S
index 9f712a7dfd79..6decc85ef7b7 100644
--- a/arch/x86/crypto/sha1_avx2_x86_64_asm.S
+++ b/arch/x86/crypto/sha1_avx2_x86_64_asm.S
@@ -634,7 +634,7 @@ _loop3:
  * param: function's name
  */
 .macro SHA1_VECTOR_ASM  name
-	ENTRY(\name)
+	SYM_FUNC_START(\name)
 
 	push	%rbx
 	push	%r12
@@ -676,7 +676,7 @@ _loop3:
 
 	ret
 
-	ENDPROC(\name)
+	SYM_FUNC_END(\name)
 .endm
 
 .section .rodata
diff --git a/arch/x86/crypto/sha1_ni_asm.S b/arch/x86/crypto/sha1_ni_asm.S
index ebbdba72ae07..11efe3a45a1f 100644
--- a/arch/x86/crypto/sha1_ni_asm.S
+++ b/arch/x86/crypto/sha1_ni_asm.S
@@ -95,7 +95,7 @@
  */
 .text
 .align 32
-ENTRY(sha1_ni_transform)
+SYM_FUNC_START(sha1_ni_transform)
 	mov		%rsp, RSPSAVE
 	sub		$FRAME_SIZE, %rsp
 	and		$~0xF, %rsp
@@ -291,7 +291,7 @@ ENTRY(sha1_ni_transform)
 	mov		RSPSAVE, %rsp
 
 	ret
-ENDPROC(sha1_ni_transform)
+SYM_FUNC_END(sha1_ni_transform)
 
 .section	.rodata.cst16.PSHUFFLE_BYTE_FLIP_MASK, "aM", @progbits, 16
 .align 16
diff --git a/arch/x86/crypto/sha1_ssse3_asm.S b/arch/x86/crypto/sha1_ssse3_asm.S
index 99c5b8c4dc38..5d03c1173690 100644
--- a/arch/x86/crypto/sha1_ssse3_asm.S
+++ b/arch/x86/crypto/sha1_ssse3_asm.S
@@ -67,7 +67,7 @@
  * param: function's name
  */
 .macro SHA1_VECTOR_ASM  name
-	ENTRY(\name)
+	SYM_FUNC_START(\name)
 
 	push	%rbx
 	push	%r12
@@ -101,7 +101,7 @@
 	pop	%rbx
 	ret
 
-	ENDPROC(\name)
+	SYM_FUNC_END(\name)
 .endm
 
 /*
diff --git a/arch/x86/crypto/sha256-avx-asm.S b/arch/x86/crypto/sha256-avx-asm.S
index 001bbcf93c79..22e14c8dd2e4 100644
--- a/arch/x86/crypto/sha256-avx-asm.S
+++ b/arch/x86/crypto/sha256-avx-asm.S
@@ -347,7 +347,7 @@ a = TMP_
 ## arg 3 : Num blocks
 ########################################################################
 .text
-ENTRY(sha256_transform_avx)
+SYM_FUNC_START(sha256_transform_avx)
 .align 32
 	pushq   %rbx
 	pushq   %r12
@@ -460,7 +460,7 @@ done_hash:
 	popq	%r12
 	popq    %rbx
 	ret
-ENDPROC(sha256_transform_avx)
+SYM_FUNC_END(sha256_transform_avx)
 
 .section	.rodata.cst256.K256, "aM", @progbits, 256
 .align 64
diff --git a/arch/x86/crypto/sha256-avx2-asm.S b/arch/x86/crypto/sha256-avx2-asm.S
index 1420db15dcdd..519b551ad576 100644
--- a/arch/x86/crypto/sha256-avx2-asm.S
+++ b/arch/x86/crypto/sha256-avx2-asm.S
@@ -526,7 +526,7 @@ STACK_SIZE	= _RSP      + _RSP_SIZE
 ## arg 3 : Num blocks
 ########################################################################
 .text
-ENTRY(sha256_transform_rorx)
+SYM_FUNC_START(sha256_transform_rorx)
 .align 32
 	pushq	%rbx
 	pushq	%r12
@@ -713,7 +713,7 @@ done_hash:
 	popq	%r12
 	popq	%rbx
 	ret
-ENDPROC(sha256_transform_rorx)
+SYM_FUNC_END(sha256_transform_rorx)
 
 .section	.rodata.cst512.K256, "aM", @progbits, 512
 .align 64
diff --git a/arch/x86/crypto/sha256-ssse3-asm.S b/arch/x86/crypto/sha256-ssse3-asm.S
index c6c05ed2c16a..69cc2f91dc4c 100644
--- a/arch/x86/crypto/sha256-ssse3-asm.S
+++ b/arch/x86/crypto/sha256-ssse3-asm.S
@@ -353,7 +353,7 @@ a = TMP_
 ## arg 3 : Num blocks
 ########################################################################
 .text
-ENTRY(sha256_transform_ssse3)
+SYM_FUNC_START(sha256_transform_ssse3)
 .align 32
 	pushq   %rbx
 	pushq   %r12
@@ -471,7 +471,7 @@ done_hash:
 	popq    %rbx
 
 	ret
-ENDPROC(sha256_transform_ssse3)
+SYM_FUNC_END(sha256_transform_ssse3)
 
 .section	.rodata.cst256.K256, "aM", @progbits, 256
 .align 64
diff --git a/arch/x86/crypto/sha256_ni_asm.S b/arch/x86/crypto/sha256_ni_asm.S
index fb58f58ecfbc..7abade04a3a3 100644
--- a/arch/x86/crypto/sha256_ni_asm.S
+++ b/arch/x86/crypto/sha256_ni_asm.S
@@ -97,7 +97,7 @@
 
 .text
 .align 32
-ENTRY(sha256_ni_transform)
+SYM_FUNC_START(sha256_ni_transform)
 
 	shl		$6, NUM_BLKS		/*  convert to bytes */
 	jz		.Ldone_hash
@@ -327,7 +327,7 @@ ENTRY(sha256_ni_transform)
 .Ldone_hash:
 
 	ret
-ENDPROC(sha256_ni_transform)
+SYM_FUNC_END(sha256_ni_transform)
 
 .section	.rodata.cst256.K256, "aM", @progbits, 256
 .align 64
diff --git a/arch/x86/crypto/sha512-avx-asm.S b/arch/x86/crypto/sha512-avx-asm.S
index 39235fefe6f7..3704ddd7e5d5 100644
--- a/arch/x86/crypto/sha512-avx-asm.S
+++ b/arch/x86/crypto/sha512-avx-asm.S
@@ -277,7 +277,7 @@ frame_size = frame_GPRSAVE + GPRSAVE_SIZE
 # message blocks.
 # L is the message length in SHA512 blocks
 ########################################################################
-ENTRY(sha512_transform_avx)
+SYM_FUNC_START(sha512_transform_avx)
 	cmp $0, msglen
 	je nowork
 
@@ -365,7 +365,7 @@ updateblock:
 
 nowork:
 	ret
-ENDPROC(sha512_transform_avx)
+SYM_FUNC_END(sha512_transform_avx)
 
 ########################################################################
 ### Binary Data
diff --git a/arch/x86/crypto/sha512-avx2-asm.S b/arch/x86/crypto/sha512-avx2-asm.S
index b16d56005162..80d830e7ee09 100644
--- a/arch/x86/crypto/sha512-avx2-asm.S
+++ b/arch/x86/crypto/sha512-avx2-asm.S
@@ -569,7 +569,7 @@ frame_size = frame_GPRSAVE + GPRSAVE_SIZE
 #   message blocks.
 # L is the message length in SHA512 blocks
 ########################################################################
-ENTRY(sha512_transform_rorx)
+SYM_FUNC_START(sha512_transform_rorx)
 	# Allocate Stack Space
 	mov	%rsp, %rax
 	sub	$frame_size, %rsp
@@ -682,7 +682,7 @@ done_hash:
 	# Restore Stack Pointer
 	mov	frame_RSPSAVE(%rsp), %rsp
 	ret
-ENDPROC(sha512_transform_rorx)
+SYM_FUNC_END(sha512_transform_rorx)
 
 ########################################################################
 ### Binary Data
diff --git a/arch/x86/crypto/sha512-ssse3-asm.S b/arch/x86/crypto/sha512-ssse3-asm.S
index 66bbd9058a90..838f984e95d9 100644
--- a/arch/x86/crypto/sha512-ssse3-asm.S
+++ b/arch/x86/crypto/sha512-ssse3-asm.S
@@ -275,7 +275,7 @@ frame_size = frame_GPRSAVE + GPRSAVE_SIZE
 #   message blocks.
 # L is the message length in SHA512 blocks.
 ########################################################################
-ENTRY(sha512_transform_ssse3)
+SYM_FUNC_START(sha512_transform_ssse3)
 
 	cmp $0, msglen
 	je nowork
@@ -364,7 +364,7 @@ updateblock:
 
 nowork:
 	ret
-ENDPROC(sha512_transform_ssse3)
+SYM_FUNC_END(sha512_transform_ssse3)
 
 ########################################################################
 ### Binary Data
diff --git a/arch/x86/crypto/twofish-avx-x86_64-asm_64.S b/arch/x86/crypto/twofish-avx-x86_64-asm_64.S
index 588f0a2f63ab..a5151393bb2f 100644
--- a/arch/x86/crypto/twofish-avx-x86_64-asm_64.S
+++ b/arch/x86/crypto/twofish-avx-x86_64-asm_64.S
@@ -315,7 +315,7 @@ SYM_FUNC_START_LOCAL(__twofish_dec_blk8)
 	ret;
 SYM_FUNC_END(__twofish_dec_blk8)
 
-ENTRY(twofish_ecb_enc_8way)
+SYM_FUNC_START(twofish_ecb_enc_8way)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst
@@ -333,9 +333,9 @@ ENTRY(twofish_ecb_enc_8way)
 
 	FRAME_END
 	ret;
-ENDPROC(twofish_ecb_enc_8way)
+SYM_FUNC_END(twofish_ecb_enc_8way)
 
-ENTRY(twofish_ecb_dec_8way)
+SYM_FUNC_START(twofish_ecb_dec_8way)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst
@@ -353,9 +353,9 @@ ENTRY(twofish_ecb_dec_8way)
 
 	FRAME_END
 	ret;
-ENDPROC(twofish_ecb_dec_8way)
+SYM_FUNC_END(twofish_ecb_dec_8way)
 
-ENTRY(twofish_cbc_dec_8way)
+SYM_FUNC_START(twofish_cbc_dec_8way)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst
@@ -378,9 +378,9 @@ ENTRY(twofish_cbc_dec_8way)
 
 	FRAME_END
 	ret;
-ENDPROC(twofish_cbc_dec_8way)
+SYM_FUNC_END(twofish_cbc_dec_8way)
 
-ENTRY(twofish_ctr_8way)
+SYM_FUNC_START(twofish_ctr_8way)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst
@@ -405,9 +405,9 @@ ENTRY(twofish_ctr_8way)
 
 	FRAME_END
 	ret;
-ENDPROC(twofish_ctr_8way)
+SYM_FUNC_END(twofish_ctr_8way)
 
-ENTRY(twofish_xts_enc_8way)
+SYM_FUNC_START(twofish_xts_enc_8way)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst
@@ -429,9 +429,9 @@ ENTRY(twofish_xts_enc_8way)
 
 	FRAME_END
 	ret;
-ENDPROC(twofish_xts_enc_8way)
+SYM_FUNC_END(twofish_xts_enc_8way)
 
-ENTRY(twofish_xts_dec_8way)
+SYM_FUNC_START(twofish_xts_dec_8way)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst
@@ -453,4 +453,4 @@ ENTRY(twofish_xts_dec_8way)
 
 	FRAME_END
 	ret;
-ENDPROC(twofish_xts_dec_8way)
+SYM_FUNC_END(twofish_xts_dec_8way)
diff --git a/arch/x86/crypto/twofish-x86_64-asm_64-3way.S b/arch/x86/crypto/twofish-x86_64-asm_64-3way.S
index e495e07c7f1b..fc23552afe37 100644
--- a/arch/x86/crypto/twofish-x86_64-asm_64-3way.S
+++ b/arch/x86/crypto/twofish-x86_64-asm_64-3way.S
@@ -220,7 +220,7 @@
 	rorq $32,			RAB2; \
 	outunpack3(mov, RIO, 2, RAB, 2);
 
-ENTRY(__twofish_enc_blk_3way)
+SYM_FUNC_START(__twofish_enc_blk_3way)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst
@@ -267,9 +267,9 @@ ENTRY(__twofish_enc_blk_3way)
 	popq %r12;
 	popq %r13;
 	ret;
-ENDPROC(__twofish_enc_blk_3way)
+SYM_FUNC_END(__twofish_enc_blk_3way)
 
-ENTRY(twofish_dec_blk_3way)
+SYM_FUNC_START(twofish_dec_blk_3way)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst
@@ -302,4 +302,4 @@ ENTRY(twofish_dec_blk_3way)
 	popq %r12;
 	popq %r13;
 	ret;
-ENDPROC(twofish_dec_blk_3way)
+SYM_FUNC_END(twofish_dec_blk_3way)
diff --git a/arch/x86/crypto/twofish-x86_64-asm_64.S b/arch/x86/crypto/twofish-x86_64-asm_64.S
index ecef2cb9f43f..d2e56232494a 100644
--- a/arch/x86/crypto/twofish-x86_64-asm_64.S
+++ b/arch/x86/crypto/twofish-x86_64-asm_64.S
@@ -202,7 +202,7 @@
 	xor	%r8d,		d ## D;\
 	ror	$1,		d ## D;
 
-ENTRY(twofish_enc_blk)
+SYM_FUNC_START(twofish_enc_blk)
 	pushq    R1
 
 	/* %rdi contains the ctx address */
@@ -253,9 +253,9 @@ ENTRY(twofish_enc_blk)
 	popq	R1
 	movl	$1,%eax
 	ret
-ENDPROC(twofish_enc_blk)
+SYM_FUNC_END(twofish_enc_blk)
 
-ENTRY(twofish_dec_blk)
+SYM_FUNC_START(twofish_dec_blk)
 	pushq    R1
 
 	/* %rdi contains the ctx address */
@@ -305,4 +305,4 @@ ENTRY(twofish_dec_blk)
 	popq	R1
 	movl	$1,%eax
 	ret
-ENDPROC(twofish_dec_blk)
+SYM_FUNC_END(twofish_dec_blk)
diff --git a/arch/x86/entry/entry_64.S b/arch/x86/entry/entry_64.S
index 13e4fe378e5a..d58c01239457 100644
--- a/arch/x86/entry/entry_64.S
+++ b/arch/x86/entry/entry_64.S
@@ -15,7 +15,7 @@
  *			at the top of the kernel process stack.
  *
  * Some macro usage:
- * - ENTRY/END:		Define functions in the symbol table.
+ * - SYM_FUNC_START/END:Define functions in the symbol table.
  * - TRACE_IRQ_*:	Trace hardirq state for lock debugging.
  * - idtentry:		Define exception entry points.
  */
@@ -1040,7 +1040,7 @@ idtentry simd_coprocessor_error		do_simd_coprocessor_error	has_error_code=0
 	 * Reload gs selector with exception handling
 	 * edi:  new selector
 	 */
-ENTRY(native_load_gs_index)
+SYM_FUNC_START(native_load_gs_index)
 	FRAME_BEGIN
 	pushfq
 	DISABLE_INTERRUPTS(CLBR_ANY & ~CLBR_RDI)
@@ -1054,7 +1054,7 @@ ENTRY(native_load_gs_index)
 	popfq
 	FRAME_END
 	ret
-ENDPROC(native_load_gs_index)
+SYM_FUNC_END(native_load_gs_index)
 EXPORT_SYMBOL(native_load_gs_index)
 
 	_ASM_EXTABLE(.Lgs_change, .Lbad_gs)
@@ -1075,7 +1075,7 @@ SYM_CODE_END(.Lbad_gs)
 	.previous
 
 /* Call softirq on interrupt stack. Interrupts are off. */
-ENTRY(do_softirq_own_stack)
+SYM_FUNC_START(do_softirq_own_stack)
 	pushq	%rbp
 	mov	%rsp, %rbp
 	ENTER_IRQ_STACK regs=0 old_rsp=%r11
@@ -1083,7 +1083,7 @@ ENTRY(do_softirq_own_stack)
 	LEAVE_IRQ_STACK regs=0
 	leaveq
 	ret
-ENDPROC(do_softirq_own_stack)
+SYM_FUNC_END(do_softirq_own_stack)
 
 #ifdef CONFIG_XEN_PV
 idtentry hypervisor_callback xen_do_hypervisor_callback has_error_code=0
diff --git a/arch/x86/entry/entry_64_compat.S b/arch/x86/entry/entry_64_compat.S
index da296435676e..f1d3ccae5dd5 100644
--- a/arch/x86/entry/entry_64_compat.S
+++ b/arch/x86/entry/entry_64_compat.S
@@ -46,7 +46,7 @@
  * ebp  user stack
  * 0(%ebp) arg6
  */
-ENTRY(entry_SYSENTER_compat)
+SYM_FUNC_START(entry_SYSENTER_compat)
 	/* Interrupts are off on entry. */
 	SWAPGS
 
@@ -147,7 +147,7 @@ ENTRY(entry_SYSENTER_compat)
 	popfq
 	jmp	.Lsysenter_flags_fixed
 SYM_INNER_LABEL(__end_entry_SYSENTER_compat, SYM_L_GLOBAL)
-ENDPROC(entry_SYSENTER_compat)
+SYM_FUNC_END(entry_SYSENTER_compat)
 
 /*
  * 32-bit SYSCALL entry.
diff --git a/arch/x86/kernel/acpi/wakeup_64.S b/arch/x86/kernel/acpi/wakeup_64.S
index 462a20f386e0..c8daa92f38dc 100644
--- a/arch/x86/kernel/acpi/wakeup_64.S
+++ b/arch/x86/kernel/acpi/wakeup_64.S
@@ -14,7 +14,7 @@
 	/*
 	 * Hooray, we are in Long 64-bit mode (but still running in low memory)
 	 */
-ENTRY(wakeup_long64)
+SYM_FUNC_START(wakeup_long64)
 	movq	saved_magic, %rax
 	movq	$0x123456789abcdef0, %rdx
 	cmpq	%rdx, %rax
@@ -40,9 +40,9 @@ ENTRY(wakeup_long64)
 
 	movq	saved_rip, %rax
 	jmp	*%rax
-ENDPROC(wakeup_long64)
+SYM_FUNC_END(wakeup_long64)
 
-ENTRY(do_suspend_lowlevel)
+SYM_FUNC_START(do_suspend_lowlevel)
 	FRAME_BEGIN
 	subq	$8, %rsp
 	xorl	%eax, %eax
@@ -125,7 +125,7 @@ ENTRY(do_suspend_lowlevel)
 	addq	$8, %rsp
 	FRAME_END
 	jmp	restore_processor_state
-ENDPROC(do_suspend_lowlevel)
+SYM_FUNC_END(do_suspend_lowlevel)
 
 .data
 saved_rbp:		.quad	0
diff --git a/arch/x86/kernel/ftrace_64.S b/arch/x86/kernel/ftrace_64.S
index 60f894b018e0..16deae706950 100644
--- a/arch/x86/kernel/ftrace_64.S
+++ b/arch/x86/kernel/ftrace_64.S
@@ -132,11 +132,11 @@ EXPORT_SYMBOL(__fentry__)
 
 #ifdef CONFIG_DYNAMIC_FTRACE
 
-ENTRY(function_hook)
+SYM_FUNC_START(function_hook)
 	retq
-ENDPROC(function_hook)
+SYM_FUNC_END(function_hook)
 
-ENTRY(ftrace_caller)
+SYM_FUNC_START(ftrace_caller)
 	/* save_mcount_regs fills in first two parameters */
 	save_mcount_regs
 
@@ -170,9 +170,9 @@ SYM_INNER_LABEL(ftrace_graph_call, SYM_L_GLOBAL)
  */
 WEAK(ftrace_stub)
 	retq
-ENDPROC(ftrace_caller)
+SYM_FUNC_END(ftrace_caller)
 
-ENTRY(ftrace_regs_caller)
+SYM_FUNC_START(ftrace_regs_caller)
 	/* Save the current flags before any operations that can change them */
 	pushfq
 
@@ -243,12 +243,12 @@ SYM_INNER_LABEL(ftrace_regs_caller_end, SYM_L_GLOBAL)
 
 	jmp ftrace_epilogue
 
-ENDPROC(ftrace_regs_caller)
+SYM_FUNC_END(ftrace_regs_caller)
 
 
 #else /* ! CONFIG_DYNAMIC_FTRACE */
 
-ENTRY(function_hook)
+SYM_FUNC_START(function_hook)
 	cmpq $ftrace_stub, ftrace_trace_function
 	jnz trace
 
@@ -279,11 +279,11 @@ trace:
 	restore_mcount_regs
 
 	jmp fgraph_trace
-ENDPROC(function_hook)
+SYM_FUNC_END(function_hook)
 #endif /* CONFIG_DYNAMIC_FTRACE */
 
 #ifdef CONFIG_FUNCTION_GRAPH_TRACER
-ENTRY(ftrace_graph_caller)
+SYM_FUNC_START(ftrace_graph_caller)
 	/* Saves rbp into %rdx and fills first parameter  */
 	save_mcount_regs
 
@@ -294,7 +294,7 @@ ENTRY(ftrace_graph_caller)
 	restore_mcount_regs
 
 	retq
-ENDPROC(ftrace_graph_caller)
+SYM_FUNC_END(ftrace_graph_caller)
 
 SYM_CODE_START(return_to_handler)
 	UNWIND_HINT_EMPTY
diff --git a/arch/x86/kernel/irqflags.S b/arch/x86/kernel/irqflags.S
index ddeeaac8adda..0db0375235b4 100644
--- a/arch/x86/kernel/irqflags.S
+++ b/arch/x86/kernel/irqflags.S
@@ -7,20 +7,20 @@
 /*
  * unsigned long native_save_fl(void)
  */
-ENTRY(native_save_fl)
+SYM_FUNC_START(native_save_fl)
 	pushf
 	pop %_ASM_AX
 	ret
-ENDPROC(native_save_fl)
+SYM_FUNC_END(native_save_fl)
 EXPORT_SYMBOL(native_save_fl)
 
 /*
  * void native_restore_fl(unsigned long flags)
  * %eax/%rdi: flags
  */
-ENTRY(native_restore_fl)
+SYM_FUNC_START(native_restore_fl)
 	push %_ASM_ARG1
 	popf
 	ret
-ENDPROC(native_restore_fl)
+SYM_FUNC_END(native_restore_fl)
 EXPORT_SYMBOL(native_restore_fl)
diff --git a/arch/x86/kvm/vmx/vmenter.S b/arch/x86/kvm/vmx/vmenter.S
index 751a384c2eb0..81ada2ce99e7 100644
--- a/arch/x86/kvm/vmx/vmenter.S
+++ b/arch/x86/kvm/vmx/vmenter.S
@@ -43,7 +43,7 @@
  * they VM-Fail, whereas a successful VM-Enter + VM-Exit will jump
  * to vmx_vmexit.
  */
-ENTRY(vmx_vmenter)
+SYM_FUNC_START(vmx_vmenter)
 	/* EFLAGS.ZF is set if VMCS.LAUNCHED == 0 */
 	je 2f
 
@@ -65,7 +65,7 @@ ENTRY(vmx_vmenter)
 	_ASM_EXTABLE(1b, 5b)
 	_ASM_EXTABLE(2b, 5b)
 
-ENDPROC(vmx_vmenter)
+SYM_FUNC_END(vmx_vmenter)
 
 /**
  * vmx_vmexit - Handle a VMX VM-Exit
@@ -77,7 +77,7 @@ ENDPROC(vmx_vmenter)
  * here after hardware loads the host's state, i.e. this is the destination
  * referred to by VMCS.HOST_RIP.
  */
-ENTRY(vmx_vmexit)
+SYM_FUNC_START(vmx_vmexit)
 #ifdef CONFIG_RETPOLINE
 	ALTERNATIVE "jmp .Lvmexit_skip_rsb", "", X86_FEATURE_RETPOLINE
 	/* Preserve guest's RAX, it's used to stuff the RSB. */
@@ -90,7 +90,7 @@ ENTRY(vmx_vmexit)
 .Lvmexit_skip_rsb:
 #endif
 	ret
-ENDPROC(vmx_vmexit)
+SYM_FUNC_END(vmx_vmexit)
 
 /**
  * __vmx_vcpu_run - Run a vCPU via a transition to VMX guest mode
@@ -101,7 +101,7 @@ ENDPROC(vmx_vmexit)
  * Returns:
  *	0 on VM-Exit, 1 on VM-Fail
  */
-ENTRY(__vmx_vcpu_run)
+SYM_FUNC_START(__vmx_vcpu_run)
 	push %_ASM_BP
 	mov  %_ASM_SP, %_ASM_BP
 #ifdef CONFIG_X86_64
@@ -233,4 +233,4 @@ ENTRY(__vmx_vcpu_run)
 	/* VM-Fail.  Out-of-line to avoid a taken Jcc after VM-Exit. */
 2:	mov $1, %eax
 	jmp 1b
-ENDPROC(__vmx_vcpu_run)
+SYM_FUNC_END(__vmx_vcpu_run)
diff --git a/arch/x86/lib/checksum_32.S b/arch/x86/lib/checksum_32.S
index 4df90c9ea383..74256bd193da 100644
--- a/arch/x86/lib/checksum_32.S
+++ b/arch/x86/lib/checksum_32.S
@@ -280,7 +280,7 @@ unsigned int csum_partial_copy_generic (const char *src, char *dst,
 #define ARGBASE 16		
 #define FP		12
 		
-ENTRY(csum_partial_copy_generic)
+SYM_FUNC_START(csum_partial_copy_generic)
 	subl  $4,%esp	
 	pushl %edi
 	pushl %esi
@@ -398,7 +398,7 @@ DST(	movb %cl, (%edi)	)
 	popl %edi
 	popl %ecx			# equivalent to addl $4,%esp
 	ret	
-ENDPROC(csum_partial_copy_generic)
+SYM_FUNC_END(csum_partial_copy_generic)
 
 #else
 
@@ -416,7 +416,7 @@ ENDPROC(csum_partial_copy_generic)
 
 #define ARGBASE 12
 		
-ENTRY(csum_partial_copy_generic)
+SYM_FUNC_START(csum_partial_copy_generic)
 	pushl %ebx
 	pushl %edi
 	pushl %esi
@@ -483,7 +483,7 @@ DST(	movb %dl, (%edi)         )
 	popl %edi
 	popl %ebx
 	ret
-ENDPROC(csum_partial_copy_generic)
+SYM_FUNC_END(csum_partial_copy_generic)
 				
 #undef ROUND
 #undef ROUND1		
diff --git a/arch/x86/lib/clear_page_64.S b/arch/x86/lib/clear_page_64.S
index 75a5a4515fa7..c4c7dd115953 100644
--- a/arch/x86/lib/clear_page_64.S
+++ b/arch/x86/lib/clear_page_64.S
@@ -13,15 +13,15 @@
  * Zero a page.
  * %rdi	- page
  */
-ENTRY(clear_page_rep)
+SYM_FUNC_START(clear_page_rep)
 	movl $4096/8,%ecx
 	xorl %eax,%eax
 	rep stosq
 	ret
-ENDPROC(clear_page_rep)
+SYM_FUNC_END(clear_page_rep)
 EXPORT_SYMBOL_GPL(clear_page_rep)
 
-ENTRY(clear_page_orig)
+SYM_FUNC_START(clear_page_orig)
 	xorl   %eax,%eax
 	movl   $4096/64,%ecx
 	.p2align 4
@@ -40,13 +40,13 @@ ENTRY(clear_page_orig)
 	jnz	.Lloop
 	nop
 	ret
-ENDPROC(clear_page_orig)
+SYM_FUNC_END(clear_page_orig)
 EXPORT_SYMBOL_GPL(clear_page_orig)
 
-ENTRY(clear_page_erms)
+SYM_FUNC_START(clear_page_erms)
 	movl $4096,%ecx
 	xorl %eax,%eax
 	rep stosb
 	ret
-ENDPROC(clear_page_erms)
+SYM_FUNC_END(clear_page_erms)
 EXPORT_SYMBOL_GPL(clear_page_erms)
diff --git a/arch/x86/lib/cmpxchg16b_emu.S b/arch/x86/lib/cmpxchg16b_emu.S
index d63185698a23..3542502faa3b 100644
--- a/arch/x86/lib/cmpxchg16b_emu.S
+++ b/arch/x86/lib/cmpxchg16b_emu.S
@@ -13,7 +13,7 @@
  * %rcx : high 64 bits of new value
  * %al  : Operation successful
  */
-ENTRY(this_cpu_cmpxchg16b_emu)
+SYM_FUNC_START(this_cpu_cmpxchg16b_emu)
 
 #
 # Emulate 'cmpxchg16b %gs:(%rsi)' except we return the result in %al not
@@ -44,4 +44,4 @@ ENTRY(this_cpu_cmpxchg16b_emu)
 	xor %al,%al
 	ret
 
-ENDPROC(this_cpu_cmpxchg16b_emu)
+SYM_FUNC_END(this_cpu_cmpxchg16b_emu)
diff --git a/arch/x86/lib/cmpxchg8b_emu.S b/arch/x86/lib/cmpxchg8b_emu.S
index 691d80e97488..ca01ed6029f4 100644
--- a/arch/x86/lib/cmpxchg8b_emu.S
+++ b/arch/x86/lib/cmpxchg8b_emu.S
@@ -13,7 +13,7 @@
  * %ebx : low 32 bits of new value
  * %ecx : high 32 bits of new value
  */
-ENTRY(cmpxchg8b_emu)
+SYM_FUNC_START(cmpxchg8b_emu)
 
 #
 # Emulate 'cmpxchg8b (%esi)' on UP except we don't
@@ -42,5 +42,5 @@ ENTRY(cmpxchg8b_emu)
 	popfl
 	ret
 
-ENDPROC(cmpxchg8b_emu)
+SYM_FUNC_END(cmpxchg8b_emu)
 EXPORT_SYMBOL(cmpxchg8b_emu)
diff --git a/arch/x86/lib/copy_page_64.S b/arch/x86/lib/copy_page_64.S
index f505870bd93b..2402d4c489d2 100644
--- a/arch/x86/lib/copy_page_64.S
+++ b/arch/x86/lib/copy_page_64.S
@@ -13,12 +13,12 @@
  * prefetch distance based on SMP/UP.
  */
 	ALIGN
-ENTRY(copy_page)
+SYM_FUNC_START(copy_page)
 	ALTERNATIVE "jmp copy_page_regs", "", X86_FEATURE_REP_GOOD
 	movl	$4096/8, %ecx
 	rep	movsq
 	ret
-ENDPROC(copy_page)
+SYM_FUNC_END(copy_page)
 EXPORT_SYMBOL(copy_page)
 
 SYM_FUNC_START_LOCAL(copy_page_regs)
diff --git a/arch/x86/lib/copy_user_64.S b/arch/x86/lib/copy_user_64.S
index 4a12b3c120bf..816f128a6d52 100644
--- a/arch/x86/lib/copy_user_64.S
+++ b/arch/x86/lib/copy_user_64.S
@@ -53,7 +53,7 @@
  * Output:
  * eax uncopied bytes or 0 if successful.
  */
-ENTRY(copy_user_generic_unrolled)
+SYM_FUNC_START(copy_user_generic_unrolled)
 	ASM_STAC
 	cmpl $8,%edx
 	jb 20f		/* less then 8 bytes, go to byte copy loop */
@@ -136,7 +136,7 @@ ENTRY(copy_user_generic_unrolled)
 	_ASM_EXTABLE_UA(19b, 40b)
 	_ASM_EXTABLE_UA(21b, 50b)
 	_ASM_EXTABLE_UA(22b, 50b)
-ENDPROC(copy_user_generic_unrolled)
+SYM_FUNC_END(copy_user_generic_unrolled)
 EXPORT_SYMBOL(copy_user_generic_unrolled)
 
 /* Some CPUs run faster using the string copy instructions.
@@ -157,7 +157,7 @@ EXPORT_SYMBOL(copy_user_generic_unrolled)
  * Output:
  * eax uncopied bytes or 0 if successful.
  */
-ENTRY(copy_user_generic_string)
+SYM_FUNC_START(copy_user_generic_string)
 	ASM_STAC
 	cmpl $8,%edx
 	jb 2f		/* less than 8 bytes, go to byte copy loop */
@@ -182,7 +182,7 @@ ENTRY(copy_user_generic_string)
 
 	_ASM_EXTABLE_UA(1b, 11b)
 	_ASM_EXTABLE_UA(3b, 12b)
-ENDPROC(copy_user_generic_string)
+SYM_FUNC_END(copy_user_generic_string)
 EXPORT_SYMBOL(copy_user_generic_string)
 
 /*
@@ -197,7 +197,7 @@ EXPORT_SYMBOL(copy_user_generic_string)
  * Output:
  * eax uncopied bytes or 0 if successful.
  */
-ENTRY(copy_user_enhanced_fast_string)
+SYM_FUNC_START(copy_user_enhanced_fast_string)
 	ASM_STAC
 	cmpl $64,%edx
 	jb .L_copy_short_string	/* less then 64 bytes, avoid the costly 'rep' */
@@ -214,7 +214,7 @@ ENTRY(copy_user_enhanced_fast_string)
 	.previous
 
 	_ASM_EXTABLE_UA(1b, 12b)
-ENDPROC(copy_user_enhanced_fast_string)
+SYM_FUNC_END(copy_user_enhanced_fast_string)
 EXPORT_SYMBOL(copy_user_enhanced_fast_string)
 
 /*
@@ -249,7 +249,7 @@ SYM_CODE_END(.Lcopy_user_handle_tail)
  *  - Require 8-byte alignment when size is 8 bytes or larger.
  *  - Require 4-byte alignment when size is 4 bytes.
  */
-ENTRY(__copy_user_nocache)
+SYM_FUNC_START(__copy_user_nocache)
 	ASM_STAC
 
 	/* If size is less than 8 bytes, go to 4-byte copy */
@@ -388,5 +388,5 @@ ENTRY(__copy_user_nocache)
 	_ASM_EXTABLE_UA(31b, .L_fixup_4b_copy)
 	_ASM_EXTABLE_UA(40b, .L_fixup_1b_copy)
 	_ASM_EXTABLE_UA(41b, .L_fixup_1b_copy)
-ENDPROC(__copy_user_nocache)
+SYM_FUNC_END(__copy_user_nocache)
 EXPORT_SYMBOL(__copy_user_nocache)
diff --git a/arch/x86/lib/csum-copy_64.S b/arch/x86/lib/csum-copy_64.S
index a4a379e79259..3394a8ff7fd0 100644
--- a/arch/x86/lib/csum-copy_64.S
+++ b/arch/x86/lib/csum-copy_64.S
@@ -49,7 +49,7 @@
 	.endm
 
 
-ENTRY(csum_partial_copy_generic)
+SYM_FUNC_START(csum_partial_copy_generic)
 	cmpl	$3*64, %edx
 	jle	.Lignore
 
@@ -225,4 +225,4 @@ ENTRY(csum_partial_copy_generic)
 	jz   .Lende
 	movl $-EFAULT, (%rax)
 	jmp .Lende
-ENDPROC(csum_partial_copy_generic)
+SYM_FUNC_END(csum_partial_copy_generic)
diff --git a/arch/x86/lib/getuser.S b/arch/x86/lib/getuser.S
index f9f59eb85635..c8a85b512796 100644
--- a/arch/x86/lib/getuser.S
+++ b/arch/x86/lib/getuser.S
@@ -36,7 +36,7 @@
 #include <asm/export.h>
 
 	.text
-ENTRY(__get_user_1)
+SYM_FUNC_START(__get_user_1)
 	mov PER_CPU_VAR(current_task), %_ASM_DX
 	cmp TASK_addr_limit(%_ASM_DX),%_ASM_AX
 	jae bad_get_user
@@ -47,10 +47,10 @@ ENTRY(__get_user_1)
 	xor %eax,%eax
 	ASM_CLAC
 	ret
-ENDPROC(__get_user_1)
+SYM_FUNC_END(__get_user_1)
 EXPORT_SYMBOL(__get_user_1)
 
-ENTRY(__get_user_2)
+SYM_FUNC_START(__get_user_2)
 	add $1,%_ASM_AX
 	jc bad_get_user
 	mov PER_CPU_VAR(current_task), %_ASM_DX
@@ -63,10 +63,10 @@ ENTRY(__get_user_2)
 	xor %eax,%eax
 	ASM_CLAC
 	ret
-ENDPROC(__get_user_2)
+SYM_FUNC_END(__get_user_2)
 EXPORT_SYMBOL(__get_user_2)
 
-ENTRY(__get_user_4)
+SYM_FUNC_START(__get_user_4)
 	add $3,%_ASM_AX
 	jc bad_get_user
 	mov PER_CPU_VAR(current_task), %_ASM_DX
@@ -79,10 +79,10 @@ ENTRY(__get_user_4)
 	xor %eax,%eax
 	ASM_CLAC
 	ret
-ENDPROC(__get_user_4)
+SYM_FUNC_END(__get_user_4)
 EXPORT_SYMBOL(__get_user_4)
 
-ENTRY(__get_user_8)
+SYM_FUNC_START(__get_user_8)
 #ifdef CONFIG_X86_64
 	add $7,%_ASM_AX
 	jc bad_get_user
@@ -111,7 +111,7 @@ ENTRY(__get_user_8)
 	ASM_CLAC
 	ret
 #endif
-ENDPROC(__get_user_8)
+SYM_FUNC_END(__get_user_8)
 EXPORT_SYMBOL(__get_user_8)
 
 
diff --git a/arch/x86/lib/hweight.S b/arch/x86/lib/hweight.S
index a14f9939c365..dbf8cc97b7f5 100644
--- a/arch/x86/lib/hweight.S
+++ b/arch/x86/lib/hweight.S
@@ -8,7 +8,7 @@
  * unsigned int __sw_hweight32(unsigned int w)
  * %rdi: w
  */
-ENTRY(__sw_hweight32)
+SYM_FUNC_START(__sw_hweight32)
 
 #ifdef CONFIG_X86_64
 	movl %edi, %eax				# w
@@ -33,10 +33,10 @@ ENTRY(__sw_hweight32)
 	shrl $24, %eax				# w = w_tmp >> 24
 	__ASM_SIZE(pop,) %__ASM_REG(dx)
 	ret
-ENDPROC(__sw_hweight32)
+SYM_FUNC_END(__sw_hweight32)
 EXPORT_SYMBOL(__sw_hweight32)
 
-ENTRY(__sw_hweight64)
+SYM_FUNC_START(__sw_hweight64)
 #ifdef CONFIG_X86_64
 	pushq   %rdi
 	pushq   %rdx
@@ -79,5 +79,5 @@ ENTRY(__sw_hweight64)
 	popl    %ecx
 	ret
 #endif
-ENDPROC(__sw_hweight64)
+SYM_FUNC_END(__sw_hweight64)
 EXPORT_SYMBOL(__sw_hweight64)
diff --git a/arch/x86/lib/iomap_copy_64.S b/arch/x86/lib/iomap_copy_64.S
index a9bdf0805be0..cb5a1964506b 100644
--- a/arch/x86/lib/iomap_copy_64.S
+++ b/arch/x86/lib/iomap_copy_64.S
@@ -8,8 +8,8 @@
 /*
  * override generic version in lib/iomap_copy.c
  */
-ENTRY(__iowrite32_copy)
+SYM_FUNC_START(__iowrite32_copy)
 	movl %edx,%ecx
 	rep movsd
 	ret
-ENDPROC(__iowrite32_copy)
+SYM_FUNC_END(__iowrite32_copy)
diff --git a/arch/x86/lib/memcpy_64.S b/arch/x86/lib/memcpy_64.S
index 3265b21e86c0..56b243b14c3a 100644
--- a/arch/x86/lib/memcpy_64.S
+++ b/arch/x86/lib/memcpy_64.S
@@ -193,7 +193,7 @@ MCSAFE_TEST_CTL
  * Note that we only catch machine checks when reading the source addresses.
  * Writes to target are posted and don't generate machine checks.
  */
-ENTRY(__memcpy_mcsafe)
+SYM_FUNC_START(__memcpy_mcsafe)
 	cmpl $8, %edx
 	/* Less than 8 bytes? Go to byte copy loop */
 	jb .L_no_whole_words
@@ -260,7 +260,7 @@ ENTRY(__memcpy_mcsafe)
 	xorl %eax, %eax
 .L_done:
 	ret
-ENDPROC(__memcpy_mcsafe)
+SYM_FUNC_END(__memcpy_mcsafe)
 EXPORT_SYMBOL_GPL(__memcpy_mcsafe)
 
 	.section .fixup, "ax"
diff --git a/arch/x86/lib/memmove_64.S b/arch/x86/lib/memmove_64.S
index 50c1648311b3..337830d7a59c 100644
--- a/arch/x86/lib/memmove_64.S
+++ b/arch/x86/lib/memmove_64.S
@@ -27,7 +27,7 @@
 .weak memmove
 
 SYM_FUNC_START_ALIAS(memmove)
-ENTRY(__memmove)
+SYM_FUNC_START(__memmove)
 
 	/* Handle more 32 bytes in loop */
 	mov %rdi, %rax
@@ -207,7 +207,7 @@ ENTRY(__memmove)
 	movb %r11b, (%rdi)
 13:
 	retq
-ENDPROC(__memmove)
+SYM_FUNC_END(__memmove)
 SYM_FUNC_END_ALIAS(memmove)
 EXPORT_SYMBOL(__memmove)
 EXPORT_SYMBOL(memmove)
diff --git a/arch/x86/lib/memset_64.S b/arch/x86/lib/memset_64.S
index 564abf9ecedb..9ff15ee404a4 100644
--- a/arch/x86/lib/memset_64.S
+++ b/arch/x86/lib/memset_64.S
@@ -20,7 +20,7 @@
  * rax   original destination
  */
 SYM_FUNC_START_ALIAS(memset)
-ENTRY(__memset)
+SYM_FUNC_START(__memset)
 	/*
 	 * Some CPUs support enhanced REP MOVSB/STOSB feature. It is recommended
 	 * to use it when possible. If not available, use fast string instructions.
@@ -43,7 +43,7 @@ ENTRY(__memset)
 	rep stosb
 	movq %r9,%rax
 	ret
-ENDPROC(__memset)
+SYM_FUNC_END(__memset)
 SYM_FUNC_END_ALIAS(memset)
 EXPORT_SYMBOL(memset)
 EXPORT_SYMBOL(__memset)
diff --git a/arch/x86/lib/msr-reg.S b/arch/x86/lib/msr-reg.S
index ed33cbab3958..a2b9caa5274c 100644
--- a/arch/x86/lib/msr-reg.S
+++ b/arch/x86/lib/msr-reg.S
@@ -12,7 +12,7 @@
  *
  */
 .macro op_safe_regs op
-ENTRY(\op\()_safe_regs)
+SYM_FUNC_START(\op\()_safe_regs)
 	pushq %rbx
 	pushq %r12
 	movq	%rdi, %r10	/* Save pointer */
@@ -41,13 +41,13 @@ ENTRY(\op\()_safe_regs)
 	jmp     2b
 
 	_ASM_EXTABLE(1b, 3b)
-ENDPROC(\op\()_safe_regs)
+SYM_FUNC_END(\op\()_safe_regs)
 .endm
 
 #else /* X86_32 */
 
 .macro op_safe_regs op
-ENTRY(\op\()_safe_regs)
+SYM_FUNC_START(\op\()_safe_regs)
 	pushl %ebx
 	pushl %ebp
 	pushl %esi
@@ -83,7 +83,7 @@ ENTRY(\op\()_safe_regs)
 	jmp     2b
 
 	_ASM_EXTABLE(1b, 3b)
-ENDPROC(\op\()_safe_regs)
+SYM_FUNC_END(\op\()_safe_regs)
 .endm
 
 #endif
diff --git a/arch/x86/lib/putuser.S b/arch/x86/lib/putuser.S
index a9391d772c81..7c7c92db8497 100644
--- a/arch/x86/lib/putuser.S
+++ b/arch/x86/lib/putuser.S
@@ -34,7 +34,7 @@
 #define ENTER	mov PER_CPU_VAR(current_task), %_ASM_BX
 
 .text
-ENTRY(__put_user_1)
+SYM_FUNC_START(__put_user_1)
 	ENTER
 	cmp TASK_addr_limit(%_ASM_BX),%_ASM_CX
 	jae .Lbad_put_user
@@ -43,10 +43,10 @@ ENTRY(__put_user_1)
 	xor %eax,%eax
 	ASM_CLAC
 	ret
-ENDPROC(__put_user_1)
+SYM_FUNC_END(__put_user_1)
 EXPORT_SYMBOL(__put_user_1)
 
-ENTRY(__put_user_2)
+SYM_FUNC_START(__put_user_2)
 	ENTER
 	mov TASK_addr_limit(%_ASM_BX),%_ASM_BX
 	sub $1,%_ASM_BX
@@ -57,10 +57,10 @@ ENTRY(__put_user_2)
 	xor %eax,%eax
 	ASM_CLAC
 	ret
-ENDPROC(__put_user_2)
+SYM_FUNC_END(__put_user_2)
 EXPORT_SYMBOL(__put_user_2)
 
-ENTRY(__put_user_4)
+SYM_FUNC_START(__put_user_4)
 	ENTER
 	mov TASK_addr_limit(%_ASM_BX),%_ASM_BX
 	sub $3,%_ASM_BX
@@ -71,10 +71,10 @@ ENTRY(__put_user_4)
 	xor %eax,%eax
 	ASM_CLAC
 	ret
-ENDPROC(__put_user_4)
+SYM_FUNC_END(__put_user_4)
 EXPORT_SYMBOL(__put_user_4)
 
-ENTRY(__put_user_8)
+SYM_FUNC_START(__put_user_8)
 	ENTER
 	mov TASK_addr_limit(%_ASM_BX),%_ASM_BX
 	sub $7,%_ASM_BX
@@ -88,7 +88,7 @@ ENTRY(__put_user_8)
 	xor %eax,%eax
 	ASM_CLAC
 	RET
-ENDPROC(__put_user_8)
+SYM_FUNC_END(__put_user_8)
 EXPORT_SYMBOL(__put_user_8)
 
 SYM_CODE_START_LOCAL(.Lbad_put_user_clac)
diff --git a/arch/x86/lib/retpoline.S b/arch/x86/lib/retpoline.S
index c909961e678a..363ec132df7e 100644
--- a/arch/x86/lib/retpoline.S
+++ b/arch/x86/lib/retpoline.S
@@ -11,11 +11,11 @@
 .macro THUNK reg
 	.section .text.__x86.indirect_thunk
 
-ENTRY(__x86_indirect_thunk_\reg)
+SYM_FUNC_START(__x86_indirect_thunk_\reg)
 	CFI_STARTPROC
 	JMP_NOSPEC %\reg
 	CFI_ENDPROC
-ENDPROC(__x86_indirect_thunk_\reg)
+SYM_FUNC_END(__x86_indirect_thunk_\reg)
 .endm
 
 /*
diff --git a/arch/x86/mm/mem_encrypt_boot.S b/arch/x86/mm/mem_encrypt_boot.S
index 6d71481a1e70..106ead05bbe3 100644
--- a/arch/x86/mm/mem_encrypt_boot.S
+++ b/arch/x86/mm/mem_encrypt_boot.S
@@ -16,7 +16,7 @@
 
 	.text
 	.code64
-ENTRY(sme_encrypt_execute)
+SYM_FUNC_START(sme_encrypt_execute)
 
 	/*
 	 * Entry parameters:
@@ -66,9 +66,9 @@ ENTRY(sme_encrypt_execute)
 	pop	%rbp
 
 	ret
-ENDPROC(sme_encrypt_execute)
+SYM_FUNC_END(sme_encrypt_execute)
 
-ENTRY(__enc_copy)
+SYM_FUNC_START(__enc_copy)
 /*
  * Routine used to encrypt memory in place.
  *   This routine must be run outside of the kernel proper since
@@ -153,4 +153,4 @@ ENTRY(__enc_copy)
 
 	ret
 .L__enc_copy_end:
-ENDPROC(__enc_copy)
+SYM_FUNC_END(__enc_copy)
diff --git a/arch/x86/platform/efi/efi_stub_64.S b/arch/x86/platform/efi/efi_stub_64.S
index 74628ec78f29..b1d2313fe3bf 100644
--- a/arch/x86/platform/efi/efi_stub_64.S
+++ b/arch/x86/platform/efi/efi_stub_64.S
@@ -39,7 +39,7 @@
 	mov %rsi, %cr0;			\
 	mov (%rsp), %rsp
 
-ENTRY(efi_call)
+SYM_FUNC_START(efi_call)
 	pushq %rbp
 	movq %rsp, %rbp
 	SAVE_XMM
@@ -55,4 +55,4 @@ ENTRY(efi_call)
 	RESTORE_XMM
 	popq %rbp
 	ret
-ENDPROC(efi_call)
+SYM_FUNC_END(efi_call)
diff --git a/arch/x86/platform/efi/efi_thunk_64.S b/arch/x86/platform/efi/efi_thunk_64.S
index d677a7eb2d0a..3189f1394701 100644
--- a/arch/x86/platform/efi/efi_thunk_64.S
+++ b/arch/x86/platform/efi/efi_thunk_64.S
@@ -25,7 +25,7 @@
 
 	.text
 	.code64
-ENTRY(efi64_thunk)
+SYM_FUNC_START(efi64_thunk)
 	push	%rbp
 	push	%rbx
 
@@ -60,7 +60,7 @@ ENTRY(efi64_thunk)
 	pop	%rbx
 	pop	%rbp
 	retq
-ENDPROC(efi64_thunk)
+SYM_FUNC_END(efi64_thunk)
 
 /*
  * We run this function from the 1:1 mapping.
diff --git a/arch/x86/power/hibernate_asm_64.S b/arch/x86/power/hibernate_asm_64.S
index 4057cd5af7e2..7918b8415f13 100644
--- a/arch/x86/power/hibernate_asm_64.S
+++ b/arch/x86/power/hibernate_asm_64.S
@@ -22,7 +22,7 @@
 #include <asm/processor-flags.h>
 #include <asm/frame.h>
 
-ENTRY(swsusp_arch_suspend)
+SYM_FUNC_START(swsusp_arch_suspend)
 	movq	$saved_context, %rax
 	movq	%rsp, pt_regs_sp(%rax)
 	movq	%rbp, pt_regs_bp(%rax)
@@ -50,7 +50,7 @@ ENTRY(swsusp_arch_suspend)
 	call swsusp_save
 	FRAME_END
 	ret
-ENDPROC(swsusp_arch_suspend)
+SYM_FUNC_END(swsusp_arch_suspend)
 
 SYM_CODE_START(restore_image)
 	/* prepare to jump to the image kernel */
@@ -102,7 +102,7 @@ SYM_CODE_END(core_restore_code)
 
 	 /* code below belongs to the image kernel */
 	.align PAGE_SIZE
-ENTRY(restore_registers)
+SYM_FUNC_START(restore_registers)
 	/* go back to the original page tables */
 	movq    %r9, %cr3
 
@@ -144,4 +144,4 @@ ENTRY(restore_registers)
 	movq	%rax, in_suspend(%rip)
 
 	ret
-ENDPROC(restore_registers)
+SYM_FUNC_END(restore_registers)
diff --git a/arch/x86/xen/xen-asm.S b/arch/x86/xen/xen-asm.S
index be104eef80be..508fe204520b 100644
--- a/arch/x86/xen/xen-asm.S
+++ b/arch/x86/xen/xen-asm.S
@@ -19,7 +19,7 @@
  * event status with one and operation.  If there are pending events,
  * then enter the hypervisor to get them handled.
  */
-ENTRY(xen_irq_enable_direct)
+SYM_FUNC_START(xen_irq_enable_direct)
 	FRAME_BEGIN
 	/* Unmask events */
 	movb $0, PER_CPU_VAR(xen_vcpu_info) + XEN_vcpu_info_mask
@@ -38,17 +38,17 @@ ENTRY(xen_irq_enable_direct)
 1:
 	FRAME_END
 	ret
-	ENDPROC(xen_irq_enable_direct)
+SYM_FUNC_END(xen_irq_enable_direct)
 
 
 /*
  * Disabling events is simply a matter of making the event mask
  * non-zero.
  */
-ENTRY(xen_irq_disable_direct)
+SYM_FUNC_START(xen_irq_disable_direct)
 	movb $1, PER_CPU_VAR(xen_vcpu_info) + XEN_vcpu_info_mask
 	ret
-ENDPROC(xen_irq_disable_direct)
+SYM_FUNC_END(xen_irq_disable_direct)
 
 /*
  * (xen_)save_fl is used to get the current interrupt enable status.
@@ -59,12 +59,12 @@ ENDPROC(xen_irq_disable_direct)
  * undefined.  We need to toggle the state of the bit, because Xen and
  * x86 use opposite senses (mask vs enable).
  */
-ENTRY(xen_save_fl_direct)
+SYM_FUNC_START(xen_save_fl_direct)
 	testb $0xff, PER_CPU_VAR(xen_vcpu_info) + XEN_vcpu_info_mask
 	setz %ah
 	addb %ah, %ah
 	ret
-	ENDPROC(xen_save_fl_direct)
+SYM_FUNC_END(xen_save_fl_direct)
 
 
 /*
@@ -74,7 +74,7 @@ ENTRY(xen_save_fl_direct)
  * interrupt mask state, it checks for unmasked pending events and
  * enters the hypervisor to get them delivered if so.
  */
-ENTRY(xen_restore_fl_direct)
+SYM_FUNC_START(xen_restore_fl_direct)
 	FRAME_BEGIN
 #ifdef CONFIG_X86_64
 	testw $X86_EFLAGS_IF, %di
@@ -95,14 +95,14 @@ ENTRY(xen_restore_fl_direct)
 1:
 	FRAME_END
 	ret
-	ENDPROC(xen_restore_fl_direct)
+SYM_FUNC_END(xen_restore_fl_direct)
 
 
 /*
  * Force an event check by making a hypercall, but preserve regs
  * before making the call.
  */
-ENTRY(check_events)
+SYM_FUNC_START(check_events)
 	FRAME_BEGIN
 #ifdef CONFIG_X86_32
 	push %eax
@@ -135,19 +135,19 @@ ENTRY(check_events)
 #endif
 	FRAME_END
 	ret
-ENDPROC(check_events)
+SYM_FUNC_END(check_events)
 
-ENTRY(xen_read_cr2)
+SYM_FUNC_START(xen_read_cr2)
 	FRAME_BEGIN
 	_ASM_MOV PER_CPU_VAR(xen_vcpu), %_ASM_AX
 	_ASM_MOV XEN_vcpu_info_arch_cr2(%_ASM_AX), %_ASM_AX
 	FRAME_END
 	ret
-	ENDPROC(xen_read_cr2);
+SYM_FUNC_END(xen_read_cr2);
 
-ENTRY(xen_read_cr2_direct)
+SYM_FUNC_START(xen_read_cr2_direct)
 	FRAME_BEGIN
 	_ASM_MOV PER_CPU_VAR(xen_vcpu_info) + XEN_vcpu_info_arch_cr2, %_ASM_AX
 	FRAME_END
 	ret
-	ENDPROC(xen_read_cr2_direct);
+SYM_FUNC_END(xen_read_cr2_direct);
diff --git a/arch/x86/xen/xen-asm_64.S b/arch/x86/xen/xen-asm_64.S
index 0060120f51dd..0a0fd168683a 100644
--- a/arch/x86/xen/xen-asm_64.S
+++ b/arch/x86/xen/xen-asm_64.S
@@ -126,7 +126,7 @@ SYM_CODE_END(xen_sysret64)
  */
 
 /* Normal 64-bit system call target */
-ENTRY(xen_syscall_target)
+SYM_FUNC_START(xen_syscall_target)
 	popq %rcx
 	popq %r11
 
@@ -139,12 +139,12 @@ ENTRY(xen_syscall_target)
 	movq $__USER_CS, 1*8(%rsp)
 
 	jmp entry_SYSCALL_64_after_hwframe
-ENDPROC(xen_syscall_target)
+SYM_FUNC_END(xen_syscall_target)
 
 #ifdef CONFIG_IA32_EMULATION
 
 /* 32-bit compat syscall target */
-ENTRY(xen_syscall32_target)
+SYM_FUNC_START(xen_syscall32_target)
 	popq %rcx
 	popq %r11
 
@@ -157,25 +157,25 @@ ENTRY(xen_syscall32_target)
 	movq $__USER32_CS, 1*8(%rsp)
 
 	jmp entry_SYSCALL_compat_after_hwframe
-ENDPROC(xen_syscall32_target)
+SYM_FUNC_END(xen_syscall32_target)
 
 /* 32-bit compat sysenter target */
-ENTRY(xen_sysenter_target)
+SYM_FUNC_START(xen_sysenter_target)
 	mov 0*8(%rsp), %rcx
 	mov 1*8(%rsp), %r11
 	mov 5*8(%rsp), %rsp
 	jmp entry_SYSENTER_compat
-ENDPROC(xen_sysenter_target)
+SYM_FUNC_END(xen_sysenter_target)
 
 #else /* !CONFIG_IA32_EMULATION */
 
 SYM_FUNC_START_ALIAS(xen_syscall32_target)
-ENTRY(xen_sysenter_target)
+SYM_FUNC_START(xen_sysenter_target)
 	lea 16(%rsp), %rsp	/* strip %rcx, %r11 */
 	mov $-ENOSYS, %rax
 	pushq $0
 	jmp hypercall_iret
-ENDPROC(xen_sysenter_target)
+SYM_FUNC_END(xen_sysenter_target)
 SYM_FUNC_END_ALIAS(xen_syscall32_target)
 
 #endif	/* CONFIG_IA32_EMULATION */
diff --git a/include/linux/linkage.h b/include/linux/linkage.h
index cb1108dde385..19f3d796ab5b 100644
--- a/include/linux/linkage.h
+++ b/include/linux/linkage.h
@@ -114,11 +114,13 @@
 #endif
 #endif
 
+#ifndef CONFIG_X86_64
 #ifndef ENTRY
 /* deprecated, use SYM_FUNC_START */
 #define ENTRY(name) \
 	SYM_FUNC_START(name)
 #endif
+#endif /* CONFIG_X86_64 */
 #endif /* LINKER_SCRIPT */
 
 #ifndef WEAK
@@ -133,6 +135,7 @@
 	.size name, .-name
 #endif
 
+#ifndef CONFIG_X86_64
 /* If symbol 'name' is treated as a subroutine (gets called, and returns)
  * then please use ENDPROC to mark 'name' as STT_FUNC for the benefit of
  * static analysis tools such as stack depth analyzer.
@@ -142,6 +145,7 @@
 #define ENDPROC(name) \
 	SYM_FUNC_END(name)
 #endif
+#endif /* CONFIG_X86_64 */
 
 /* === generic annotations === */
 
-- 
2.23.0


^ permalink raw reply related	[flat|nested] 110+ messages in thread

* [Xen-devel] [PATCH v9 24/28] x86_64/asm: Change all ENTRY+ENDPROC to SYM_FUNC_*
@ 2019-10-11 11:51   ` Jiri Slaby
  0 siblings, 0 replies; 110+ messages in thread
From: Jiri Slaby @ 2019-10-11 11:51 UTC (permalink / raw)
  To: bp
  Cc: linux-arch, Len Brown, linux-efi, Rafael J . Wysocki, Herbert Xu,
	Ard Biesheuvel, Matt Fleming, linux-pm, x86, Rafael J. Wysocki,
	linux-kernel, David S. Miller, Juergen Gross, mingo,
	linux-crypto, Pavel Machek, hpa, xen-devel, tglx, Jiri Slaby,
	Boris Ostrovsky

These are all functions which are invoked from elsewhere, so annotate
them as global using the new SYM_FUNC_START. And their ENDPROC's by
SYM_FUNC_END.

And make sure ENTRY/ENDPROC is not defined on X86_64, given these were
the last users.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Reviewed-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> [hibernate]
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> [xen bits]
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: x86@kernel.org
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>
Cc: Len Brown <len.brown@intel.com>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: Matt Fleming <matt@codeblueprint.co.uk>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: Juergen Gross <jgross@suse.com>
Cc: linux-crypto@vger.kernel.org
Cc: linux-pm@vger.kernel.org
Cc: linux-efi@vger.kernel.org
Cc: xen-devel@lists.xenproject.org
---
 arch/x86/boot/compressed/efi_thunk_64.S      |  4 +-
 arch/x86/boot/compressed/head_64.S           | 16 +++---
 arch/x86/boot/compressed/mem_encrypt.S       |  8 +--
 arch/x86/crypto/aegis128-aesni-asm.S         | 28 ++++-----
 arch/x86/crypto/aes_ctrby8_avx-x86_64.S      | 12 ++--
 arch/x86/crypto/aesni-intel_asm.S            | 60 ++++++++++----------
 arch/x86/crypto/aesni-intel_avx-x86_64.S     | 32 +++++------
 arch/x86/crypto/blowfish-x86_64-asm_64.S     | 16 +++---
 arch/x86/crypto/camellia-aesni-avx-asm_64.S  | 24 ++++----
 arch/x86/crypto/camellia-aesni-avx2-asm_64.S | 24 ++++----
 arch/x86/crypto/camellia-x86_64-asm_64.S     | 16 +++---
 arch/x86/crypto/cast5-avx-x86_64-asm_64.S    | 16 +++---
 arch/x86/crypto/cast6-avx-x86_64-asm_64.S    | 24 ++++----
 arch/x86/crypto/chacha-avx2-x86_64.S         | 12 ++--
 arch/x86/crypto/chacha-avx512vl-x86_64.S     | 12 ++--
 arch/x86/crypto/chacha-ssse3-x86_64.S        | 12 ++--
 arch/x86/crypto/crc32-pclmul_asm.S           |  4 +-
 arch/x86/crypto/crc32c-pcl-intel-asm_64.S    |  4 +-
 arch/x86/crypto/crct10dif-pcl-asm_64.S       |  4 +-
 arch/x86/crypto/des3_ede-asm_64.S            |  8 +--
 arch/x86/crypto/ghash-clmulni-intel_asm.S    |  8 +--
 arch/x86/crypto/nh-avx2-x86_64.S             |  4 +-
 arch/x86/crypto/nh-sse2-x86_64.S             |  4 +-
 arch/x86/crypto/poly1305-avx2-x86_64.S       |  4 +-
 arch/x86/crypto/poly1305-sse2-x86_64.S       |  8 +--
 arch/x86/crypto/serpent-avx-x86_64-asm_64.S  | 24 ++++----
 arch/x86/crypto/serpent-avx2-asm_64.S        | 24 ++++----
 arch/x86/crypto/serpent-sse2-x86_64-asm_64.S |  8 +--
 arch/x86/crypto/sha1_avx2_x86_64_asm.S       |  4 +-
 arch/x86/crypto/sha1_ni_asm.S                |  4 +-
 arch/x86/crypto/sha1_ssse3_asm.S             |  4 +-
 arch/x86/crypto/sha256-avx-asm.S             |  4 +-
 arch/x86/crypto/sha256-avx2-asm.S            |  4 +-
 arch/x86/crypto/sha256-ssse3-asm.S           |  4 +-
 arch/x86/crypto/sha256_ni_asm.S              |  4 +-
 arch/x86/crypto/sha512-avx-asm.S             |  4 +-
 arch/x86/crypto/sha512-avx2-asm.S            |  4 +-
 arch/x86/crypto/sha512-ssse3-asm.S           |  4 +-
 arch/x86/crypto/twofish-avx-x86_64-asm_64.S  | 24 ++++----
 arch/x86/crypto/twofish-x86_64-asm_64-3way.S |  8 +--
 arch/x86/crypto/twofish-x86_64-asm_64.S      |  8 +--
 arch/x86/entry/entry_64.S                    | 10 ++--
 arch/x86/entry/entry_64_compat.S             |  4 +-
 arch/x86/kernel/acpi/wakeup_64.S             |  8 +--
 arch/x86/kernel/ftrace_64.S                  | 20 +++----
 arch/x86/kernel/irqflags.S                   |  8 +--
 arch/x86/kvm/vmx/vmenter.S                   | 12 ++--
 arch/x86/lib/checksum_32.S                   |  8 +--
 arch/x86/lib/clear_page_64.S                 | 12 ++--
 arch/x86/lib/cmpxchg16b_emu.S                |  4 +-
 arch/x86/lib/cmpxchg8b_emu.S                 |  4 +-
 arch/x86/lib/copy_page_64.S                  |  4 +-
 arch/x86/lib/copy_user_64.S                  | 16 +++---
 arch/x86/lib/csum-copy_64.S                  |  4 +-
 arch/x86/lib/getuser.S                       | 16 +++---
 arch/x86/lib/hweight.S                       |  8 +--
 arch/x86/lib/iomap_copy_64.S                 |  4 +-
 arch/x86/lib/memcpy_64.S                     |  4 +-
 arch/x86/lib/memmove_64.S                    |  4 +-
 arch/x86/lib/memset_64.S                     |  4 +-
 arch/x86/lib/msr-reg.S                       |  8 +--
 arch/x86/lib/putuser.S                       | 16 +++---
 arch/x86/lib/retpoline.S                     |  4 +-
 arch/x86/mm/mem_encrypt_boot.S               |  8 +--
 arch/x86/platform/efi/efi_stub_64.S          |  4 +-
 arch/x86/platform/efi/efi_thunk_64.S         |  4 +-
 arch/x86/power/hibernate_asm_64.S            |  8 +--
 arch/x86/xen/xen-asm.S                       | 28 ++++-----
 arch/x86/xen/xen-asm_64.S                    | 16 +++---
 include/linux/linkage.h                      |  4 ++
 70 files changed, 379 insertions(+), 375 deletions(-)

diff --git a/arch/x86/boot/compressed/efi_thunk_64.S b/arch/x86/boot/compressed/efi_thunk_64.S
index 31312070db22..593913692d16 100644
--- a/arch/x86/boot/compressed/efi_thunk_64.S
+++ b/arch/x86/boot/compressed/efi_thunk_64.S
@@ -23,7 +23,7 @@
 
 	.code64
 	.text
-ENTRY(efi64_thunk)
+SYM_FUNC_START(efi64_thunk)
 	push	%rbp
 	push	%rbx
 
@@ -97,7 +97,7 @@ ENTRY(efi64_thunk)
 	pop	%rbx
 	pop	%rbp
 	ret
-ENDPROC(efi64_thunk)
+SYM_FUNC_END(efi64_thunk)
 
 SYM_FUNC_START_LOCAL(efi_exit32)
 	movq	func_rt_ptr(%rip), %rax
diff --git a/arch/x86/boot/compressed/head_64.S b/arch/x86/boot/compressed/head_64.S
index 55800467ce5c..58a512e33d8d 100644
--- a/arch/x86/boot/compressed/head_64.S
+++ b/arch/x86/boot/compressed/head_64.S
@@ -45,7 +45,7 @@
 
 	__HEAD
 	.code32
-ENTRY(startup_32)
+SYM_FUNC_START(startup_32)
 	/*
 	 * 32bit entry is 0 and it is ABI so immutable!
 	 * If we come here directly from a bootloader,
@@ -222,11 +222,11 @@ ENTRY(startup_32)
 
 	/* Jump from 32bit compatibility mode into 64bit mode. */
 	lret
-ENDPROC(startup_32)
+SYM_FUNC_END(startup_32)
 
 #ifdef CONFIG_EFI_MIXED
 	.org 0x190
-ENTRY(efi32_stub_entry)
+SYM_FUNC_START(efi32_stub_entry)
 	add	$0x4, %esp		/* Discard return address */
 	popl	%ecx
 	popl	%edx
@@ -245,7 +245,7 @@ ENTRY(efi32_stub_entry)
 	movl	%eax, efi_config(%ebp)
 
 	jmp	startup_32
-ENDPROC(efi32_stub_entry)
+SYM_FUNC_END(efi32_stub_entry)
 #endif
 
 	.code64
@@ -447,7 +447,7 @@ SYM_CODE_END(startup_64)
 #ifdef CONFIG_EFI_STUB
 
 /* The entry point for the PE/COFF executable is efi_pe_entry. */
-ENTRY(efi_pe_entry)
+SYM_FUNC_START(efi_pe_entry)
 	movq	%rcx, efi64_config(%rip)	/* Handle */
 	movq	%rdx, efi64_config+8(%rip) /* EFI System table pointer */
 
@@ -496,10 +496,10 @@ fail:
 	movl	BP_code32_start(%esi), %eax
 	leaq	startup_64(%rax), %rax
 	jmp	*%rax
-ENDPROC(efi_pe_entry)
+SYM_FUNC_END(efi_pe_entry)
 
 	.org 0x390
-ENTRY(efi64_stub_entry)
+SYM_FUNC_START(efi64_stub_entry)
 	movq	%rdi, efi64_config(%rip)	/* Handle */
 	movq	%rsi, efi64_config+8(%rip) /* EFI System table pointer */
 
@@ -508,7 +508,7 @@ ENTRY(efi64_stub_entry)
 
 	movq	%rdx, %rsi
 	jmp	handover_entry
-ENDPROC(efi64_stub_entry)
+SYM_FUNC_END(efi64_stub_entry)
 #endif
 
 	.text
diff --git a/arch/x86/boot/compressed/mem_encrypt.S b/arch/x86/boot/compressed/mem_encrypt.S
index 28d703cad310..dd07e7b41b11 100644
--- a/arch/x86/boot/compressed/mem_encrypt.S
+++ b/arch/x86/boot/compressed/mem_encrypt.S
@@ -15,7 +15,7 @@
 
 	.text
 	.code32
-ENTRY(get_sev_encryption_bit)
+SYM_FUNC_START(get_sev_encryption_bit)
 	xor	%eax, %eax
 
 #ifdef CONFIG_AMD_MEM_ENCRYPT
@@ -65,10 +65,10 @@ ENTRY(get_sev_encryption_bit)
 #endif	/* CONFIG_AMD_MEM_ENCRYPT */
 
 	ret
-ENDPROC(get_sev_encryption_bit)
+SYM_FUNC_END(get_sev_encryption_bit)
 
 	.code64
-ENTRY(set_sev_encryption_mask)
+SYM_FUNC_START(set_sev_encryption_mask)
 #ifdef CONFIG_AMD_MEM_ENCRYPT
 	push	%rbp
 	push	%rdx
@@ -90,7 +90,7 @@ ENTRY(set_sev_encryption_mask)
 
 	xor	%rax, %rax
 	ret
-ENDPROC(set_sev_encryption_mask)
+SYM_FUNC_END(set_sev_encryption_mask)
 
 	.data
 
diff --git a/arch/x86/crypto/aegis128-aesni-asm.S b/arch/x86/crypto/aegis128-aesni-asm.S
index b7026fdef4ff..51d46d93efbc 100644
--- a/arch/x86/crypto/aegis128-aesni-asm.S
+++ b/arch/x86/crypto/aegis128-aesni-asm.S
@@ -186,7 +186,7 @@ SYM_FUNC_END(__store_partial)
 /*
  * void crypto_aegis128_aesni_init(void *state, const void *key, const void *iv);
  */
-ENTRY(crypto_aegis128_aesni_init)
+SYM_FUNC_START(crypto_aegis128_aesni_init)
 	FRAME_BEGIN
 
 	/* load IV: */
@@ -226,13 +226,13 @@ ENTRY(crypto_aegis128_aesni_init)
 
 	FRAME_END
 	ret
-ENDPROC(crypto_aegis128_aesni_init)
+SYM_FUNC_END(crypto_aegis128_aesni_init)
 
 /*
  * void crypto_aegis128_aesni_ad(void *state, unsigned int length,
  *                               const void *data);
  */
-ENTRY(crypto_aegis128_aesni_ad)
+SYM_FUNC_START(crypto_aegis128_aesni_ad)
 	FRAME_BEGIN
 
 	cmp $0x10, LEN
@@ -378,7 +378,7 @@ ENTRY(crypto_aegis128_aesni_ad)
 .Lad_out:
 	FRAME_END
 	ret
-ENDPROC(crypto_aegis128_aesni_ad)
+SYM_FUNC_END(crypto_aegis128_aesni_ad)
 
 .macro encrypt_block a s0 s1 s2 s3 s4 i
 	movdq\a (\i * 0x10)(SRC), MSG
@@ -402,7 +402,7 @@ ENDPROC(crypto_aegis128_aesni_ad)
  * void crypto_aegis128_aesni_enc(void *state, unsigned int length,
  *                                const void *src, void *dst);
  */
-ENTRY(crypto_aegis128_aesni_enc)
+SYM_FUNC_START(crypto_aegis128_aesni_enc)
 	FRAME_BEGIN
 
 	cmp $0x10, LEN
@@ -493,13 +493,13 @@ ENTRY(crypto_aegis128_aesni_enc)
 .Lenc_out:
 	FRAME_END
 	ret
-ENDPROC(crypto_aegis128_aesni_enc)
+SYM_FUNC_END(crypto_aegis128_aesni_enc)
 
 /*
  * void crypto_aegis128_aesni_enc_tail(void *state, unsigned int length,
  *                                     const void *src, void *dst);
  */
-ENTRY(crypto_aegis128_aesni_enc_tail)
+SYM_FUNC_START(crypto_aegis128_aesni_enc_tail)
 	FRAME_BEGIN
 
 	/* load the state: */
@@ -533,7 +533,7 @@ ENTRY(crypto_aegis128_aesni_enc_tail)
 
 	FRAME_END
 	ret
-ENDPROC(crypto_aegis128_aesni_enc_tail)
+SYM_FUNC_END(crypto_aegis128_aesni_enc_tail)
 
 .macro decrypt_block a s0 s1 s2 s3 s4 i
 	movdq\a (\i * 0x10)(SRC), MSG
@@ -556,7 +556,7 @@ ENDPROC(crypto_aegis128_aesni_enc_tail)
  * void crypto_aegis128_aesni_dec(void *state, unsigned int length,
  *                                const void *src, void *dst);
  */
-ENTRY(crypto_aegis128_aesni_dec)
+SYM_FUNC_START(crypto_aegis128_aesni_dec)
 	FRAME_BEGIN
 
 	cmp $0x10, LEN
@@ -647,13 +647,13 @@ ENTRY(crypto_aegis128_aesni_dec)
 .Ldec_out:
 	FRAME_END
 	ret
-ENDPROC(crypto_aegis128_aesni_dec)
+SYM_FUNC_END(crypto_aegis128_aesni_dec)
 
 /*
  * void crypto_aegis128_aesni_dec_tail(void *state, unsigned int length,
  *                                     const void *src, void *dst);
  */
-ENTRY(crypto_aegis128_aesni_dec_tail)
+SYM_FUNC_START(crypto_aegis128_aesni_dec_tail)
 	FRAME_BEGIN
 
 	/* load the state: */
@@ -697,13 +697,13 @@ ENTRY(crypto_aegis128_aesni_dec_tail)
 
 	FRAME_END
 	ret
-ENDPROC(crypto_aegis128_aesni_dec_tail)
+SYM_FUNC_END(crypto_aegis128_aesni_dec_tail)
 
 /*
  * void crypto_aegis128_aesni_final(void *state, void *tag_xor,
  *                                  u64 assoclen, u64 cryptlen);
  */
-ENTRY(crypto_aegis128_aesni_final)
+SYM_FUNC_START(crypto_aegis128_aesni_final)
 	FRAME_BEGIN
 
 	/* load the state: */
@@ -744,4 +744,4 @@ ENTRY(crypto_aegis128_aesni_final)
 
 	FRAME_END
 	ret
-ENDPROC(crypto_aegis128_aesni_final)
+SYM_FUNC_END(crypto_aegis128_aesni_final)
diff --git a/arch/x86/crypto/aes_ctrby8_avx-x86_64.S b/arch/x86/crypto/aes_ctrby8_avx-x86_64.S
index 5f6a5af9c489..ec437db1fa54 100644
--- a/arch/x86/crypto/aes_ctrby8_avx-x86_64.S
+++ b/arch/x86/crypto/aes_ctrby8_avx-x86_64.S
@@ -544,11 +544,11 @@ ddq_add_8:
  * aes_ctr_enc_128_avx_by8(void *in, void *iv, void *keys, void *out,
  *			unsigned int num_bytes)
  */
-ENTRY(aes_ctr_enc_128_avx_by8)
+SYM_FUNC_START(aes_ctr_enc_128_avx_by8)
 	/* call the aes main loop */
 	do_aes_ctrmain KEY_128
 
-ENDPROC(aes_ctr_enc_128_avx_by8)
+SYM_FUNC_END(aes_ctr_enc_128_avx_by8)
 
 /*
  * routine to do AES192 CTR enc/decrypt "by8"
@@ -557,11 +557,11 @@ ENDPROC(aes_ctr_enc_128_avx_by8)
  * aes_ctr_enc_192_avx_by8(void *in, void *iv, void *keys, void *out,
  *			unsigned int num_bytes)
  */
-ENTRY(aes_ctr_enc_192_avx_by8)
+SYM_FUNC_START(aes_ctr_enc_192_avx_by8)
 	/* call the aes main loop */
 	do_aes_ctrmain KEY_192
 
-ENDPROC(aes_ctr_enc_192_avx_by8)
+SYM_FUNC_END(aes_ctr_enc_192_avx_by8)
 
 /*
  * routine to do AES256 CTR enc/decrypt "by8"
@@ -570,8 +570,8 @@ ENDPROC(aes_ctr_enc_192_avx_by8)
  * aes_ctr_enc_256_avx_by8(void *in, void *iv, void *keys, void *out,
  *			unsigned int num_bytes)
  */
-ENTRY(aes_ctr_enc_256_avx_by8)
+SYM_FUNC_START(aes_ctr_enc_256_avx_by8)
 	/* call the aes main loop */
 	do_aes_ctrmain KEY_256
 
-ENDPROC(aes_ctr_enc_256_avx_by8)
+SYM_FUNC_END(aes_ctr_enc_256_avx_by8)
diff --git a/arch/x86/crypto/aesni-intel_asm.S b/arch/x86/crypto/aesni-intel_asm.S
index 9d8d5f2296e1..d28503f99f58 100644
--- a/arch/x86/crypto/aesni-intel_asm.S
+++ b/arch/x86/crypto/aesni-intel_asm.S
@@ -1592,7 +1592,7 @@ _esb_loop_\@:
 * poly = x^128 + x^127 + x^126 + x^121 + 1
 *
 *****************************************************************************/
-ENTRY(aesni_gcm_dec)
+SYM_FUNC_START(aesni_gcm_dec)
 	FUNC_SAVE
 
 	GCM_INIT %arg6, arg7, arg8, arg9
@@ -1600,7 +1600,7 @@ ENTRY(aesni_gcm_dec)
 	GCM_COMPLETE arg10, arg11
 	FUNC_RESTORE
 	ret
-ENDPROC(aesni_gcm_dec)
+SYM_FUNC_END(aesni_gcm_dec)
 
 
 /*****************************************************************************
@@ -1680,7 +1680,7 @@ ENDPROC(aesni_gcm_dec)
 *
 * poly = x^128 + x^127 + x^126 + x^121 + 1
 ***************************************************************************/
-ENTRY(aesni_gcm_enc)
+SYM_FUNC_START(aesni_gcm_enc)
 	FUNC_SAVE
 
 	GCM_INIT %arg6, arg7, arg8, arg9
@@ -1689,7 +1689,7 @@ ENTRY(aesni_gcm_enc)
 	GCM_COMPLETE arg10, arg11
 	FUNC_RESTORE
 	ret
-ENDPROC(aesni_gcm_enc)
+SYM_FUNC_END(aesni_gcm_enc)
 
 /*****************************************************************************
 * void aesni_gcm_init(void *aes_ctx,      // AES Key schedule. Starts on a 16 byte boundary.
@@ -1702,12 +1702,12 @@ ENDPROC(aesni_gcm_enc)
 *                     const u8 *aad,      // Additional Authentication Data (AAD)
 *                     u64 aad_len)        // Length of AAD in bytes.
 */
-ENTRY(aesni_gcm_init)
+SYM_FUNC_START(aesni_gcm_init)
 	FUNC_SAVE
 	GCM_INIT %arg3, %arg4,%arg5, %arg6
 	FUNC_RESTORE
 	ret
-ENDPROC(aesni_gcm_init)
+SYM_FUNC_END(aesni_gcm_init)
 
 /*****************************************************************************
 * void aesni_gcm_enc_update(void *aes_ctx,      // AES Key schedule. Starts on a 16 byte boundary.
@@ -1717,12 +1717,12 @@ ENDPROC(aesni_gcm_init)
 *                    const u8 *in,       // Plaintext input
 *                    u64 plaintext_len,  // Length of data in bytes for encryption.
 */
-ENTRY(aesni_gcm_enc_update)
+SYM_FUNC_START(aesni_gcm_enc_update)
 	FUNC_SAVE
 	GCM_ENC_DEC enc
 	FUNC_RESTORE
 	ret
-ENDPROC(aesni_gcm_enc_update)
+SYM_FUNC_END(aesni_gcm_enc_update)
 
 /*****************************************************************************
 * void aesni_gcm_dec_update(void *aes_ctx,      // AES Key schedule. Starts on a 16 byte boundary.
@@ -1732,12 +1732,12 @@ ENDPROC(aesni_gcm_enc_update)
 *                    const u8 *in,       // Plaintext input
 *                    u64 plaintext_len,  // Length of data in bytes for encryption.
 */
-ENTRY(aesni_gcm_dec_update)
+SYM_FUNC_START(aesni_gcm_dec_update)
 	FUNC_SAVE
 	GCM_ENC_DEC dec
 	FUNC_RESTORE
 	ret
-ENDPROC(aesni_gcm_dec_update)
+SYM_FUNC_END(aesni_gcm_dec_update)
 
 /*****************************************************************************
 * void aesni_gcm_finalize(void *aes_ctx,      // AES Key schedule. Starts on a 16 byte boundary.
@@ -1747,12 +1747,12 @@ ENDPROC(aesni_gcm_dec_update)
 *                    u64 auth_tag_len);  // Authenticated Tag Length in bytes. Valid values are 16 (most likely),
 *                                        // 12 or 8.
 */
-ENTRY(aesni_gcm_finalize)
+SYM_FUNC_START(aesni_gcm_finalize)
 	FUNC_SAVE
 	GCM_COMPLETE %arg3 %arg4
 	FUNC_RESTORE
 	ret
-ENDPROC(aesni_gcm_finalize)
+SYM_FUNC_END(aesni_gcm_finalize)
 
 #endif
 
@@ -1830,7 +1830,7 @@ SYM_FUNC_END(_key_expansion_256b)
  * int aesni_set_key(struct crypto_aes_ctx *ctx, const u8 *in_key,
  *                   unsigned int key_len)
  */
-ENTRY(aesni_set_key)
+SYM_FUNC_START(aesni_set_key)
 	FRAME_BEGIN
 #ifndef __x86_64__
 	pushl KEYP
@@ -1939,12 +1939,12 @@ ENTRY(aesni_set_key)
 #endif
 	FRAME_END
 	ret
-ENDPROC(aesni_set_key)
+SYM_FUNC_END(aesni_set_key)
 
 /*
  * void aesni_enc(struct crypto_aes_ctx *ctx, u8 *dst, const u8 *src)
  */
-ENTRY(aesni_enc)
+SYM_FUNC_START(aesni_enc)
 	FRAME_BEGIN
 #ifndef __x86_64__
 	pushl KEYP
@@ -1963,7 +1963,7 @@ ENTRY(aesni_enc)
 #endif
 	FRAME_END
 	ret
-ENDPROC(aesni_enc)
+SYM_FUNC_END(aesni_enc)
 
 /*
  * _aesni_enc1:		internal ABI
@@ -2133,7 +2133,7 @@ SYM_FUNC_END(_aesni_enc4)
 /*
  * void aesni_dec (struct crypto_aes_ctx *ctx, u8 *dst, const u8 *src)
  */
-ENTRY(aesni_dec)
+SYM_FUNC_START(aesni_dec)
 	FRAME_BEGIN
 #ifndef __x86_64__
 	pushl KEYP
@@ -2153,7 +2153,7 @@ ENTRY(aesni_dec)
 #endif
 	FRAME_END
 	ret
-ENDPROC(aesni_dec)
+SYM_FUNC_END(aesni_dec)
 
 /*
  * _aesni_dec1:		internal ABI
@@ -2324,7 +2324,7 @@ SYM_FUNC_END(_aesni_dec4)
  * void aesni_ecb_enc(struct crypto_aes_ctx *ctx, const u8 *dst, u8 *src,
  *		      size_t len)
  */
-ENTRY(aesni_ecb_enc)
+SYM_FUNC_START(aesni_ecb_enc)
 	FRAME_BEGIN
 #ifndef __x86_64__
 	pushl LEN
@@ -2378,13 +2378,13 @@ ENTRY(aesni_ecb_enc)
 #endif
 	FRAME_END
 	ret
-ENDPROC(aesni_ecb_enc)
+SYM_FUNC_END(aesni_ecb_enc)
 
 /*
  * void aesni_ecb_dec(struct crypto_aes_ctx *ctx, const u8 *dst, u8 *src,
  *		      size_t len);
  */
-ENTRY(aesni_ecb_dec)
+SYM_FUNC_START(aesni_ecb_dec)
 	FRAME_BEGIN
 #ifndef __x86_64__
 	pushl LEN
@@ -2439,13 +2439,13 @@ ENTRY(aesni_ecb_dec)
 #endif
 	FRAME_END
 	ret
-ENDPROC(aesni_ecb_dec)
+SYM_FUNC_END(aesni_ecb_dec)
 
 /*
  * void aesni_cbc_enc(struct crypto_aes_ctx *ctx, const u8 *dst, u8 *src,
  *		      size_t len, u8 *iv)
  */
-ENTRY(aesni_cbc_enc)
+SYM_FUNC_START(aesni_cbc_enc)
 	FRAME_BEGIN
 #ifndef __x86_64__
 	pushl IVP
@@ -2483,13 +2483,13 @@ ENTRY(aesni_cbc_enc)
 #endif
 	FRAME_END
 	ret
-ENDPROC(aesni_cbc_enc)
+SYM_FUNC_END(aesni_cbc_enc)
 
 /*
  * void aesni_cbc_dec(struct crypto_aes_ctx *ctx, const u8 *dst, u8 *src,
  *		      size_t len, u8 *iv)
  */
-ENTRY(aesni_cbc_dec)
+SYM_FUNC_START(aesni_cbc_dec)
 	FRAME_BEGIN
 #ifndef __x86_64__
 	pushl IVP
@@ -2576,7 +2576,7 @@ ENTRY(aesni_cbc_dec)
 #endif
 	FRAME_END
 	ret
-ENDPROC(aesni_cbc_dec)
+SYM_FUNC_END(aesni_cbc_dec)
 
 #ifdef __x86_64__
 .pushsection .rodata
@@ -2638,7 +2638,7 @@ SYM_FUNC_END(_aesni_inc)
  * void aesni_ctr_enc(struct crypto_aes_ctx *ctx, const u8 *dst, u8 *src,
  *		      size_t len, u8 *iv)
  */
-ENTRY(aesni_ctr_enc)
+SYM_FUNC_START(aesni_ctr_enc)
 	FRAME_BEGIN
 	cmp $16, LEN
 	jb .Lctr_enc_just_ret
@@ -2695,7 +2695,7 @@ ENTRY(aesni_ctr_enc)
 .Lctr_enc_just_ret:
 	FRAME_END
 	ret
-ENDPROC(aesni_ctr_enc)
+SYM_FUNC_END(aesni_ctr_enc)
 
 /*
  * _aesni_gf128mul_x_ble:		internal ABI
@@ -2719,7 +2719,7 @@ ENDPROC(aesni_ctr_enc)
  * void aesni_xts_crypt8(struct crypto_aes_ctx *ctx, const u8 *dst, u8 *src,
  *			 bool enc, u8 *iv)
  */
-ENTRY(aesni_xts_crypt8)
+SYM_FUNC_START(aesni_xts_crypt8)
 	FRAME_BEGIN
 	cmpb $0, %cl
 	movl $0, %ecx
@@ -2823,6 +2823,6 @@ ENTRY(aesni_xts_crypt8)
 
 	FRAME_END
 	ret
-ENDPROC(aesni_xts_crypt8)
+SYM_FUNC_END(aesni_xts_crypt8)
 
 #endif
diff --git a/arch/x86/crypto/aesni-intel_avx-x86_64.S b/arch/x86/crypto/aesni-intel_avx-x86_64.S
index 91c039ab5699..bfa1c0b3e5b4 100644
--- a/arch/x86/crypto/aesni-intel_avx-x86_64.S
+++ b/arch/x86/crypto/aesni-intel_avx-x86_64.S
@@ -1775,12 +1775,12 @@ _initial_blocks_done\@:
 #        const   u8 *aad, /* Additional Authentication Data (AAD)*/
 #        u64     aad_len) /* Length of AAD in bytes. With RFC4106 this is going to be 8 or 12 Bytes */
 #############################################################
-ENTRY(aesni_gcm_init_avx_gen2)
+SYM_FUNC_START(aesni_gcm_init_avx_gen2)
         FUNC_SAVE
         INIT GHASH_MUL_AVX, PRECOMPUTE_AVX
         FUNC_RESTORE
         ret
-ENDPROC(aesni_gcm_init_avx_gen2)
+SYM_FUNC_END(aesni_gcm_init_avx_gen2)
 
 ###############################################################################
 #void   aesni_gcm_enc_update_avx_gen2(
@@ -1790,7 +1790,7 @@ ENDPROC(aesni_gcm_init_avx_gen2)
 #        const   u8 *in, /* Plaintext input */
 #        u64     plaintext_len) /* Length of data in Bytes for encryption. */
 ###############################################################################
-ENTRY(aesni_gcm_enc_update_avx_gen2)
+SYM_FUNC_START(aesni_gcm_enc_update_avx_gen2)
         FUNC_SAVE
         mov     keysize, %eax
         cmp     $32, %eax
@@ -1809,7 +1809,7 @@ key_256_enc_update:
         GCM_ENC_DEC INITIAL_BLOCKS_AVX, GHASH_8_ENCRYPT_8_PARALLEL_AVX, GHASH_LAST_8_AVX, GHASH_MUL_AVX, ENC, 13
         FUNC_RESTORE
         ret
-ENDPROC(aesni_gcm_enc_update_avx_gen2)
+SYM_FUNC_END(aesni_gcm_enc_update_avx_gen2)
 
 ###############################################################################
 #void   aesni_gcm_dec_update_avx_gen2(
@@ -1819,7 +1819,7 @@ ENDPROC(aesni_gcm_enc_update_avx_gen2)
 #        const   u8 *in, /* Ciphertext input */
 #        u64     plaintext_len) /* Length of data in Bytes for encryption. */
 ###############################################################################
-ENTRY(aesni_gcm_dec_update_avx_gen2)
+SYM_FUNC_START(aesni_gcm_dec_update_avx_gen2)
         FUNC_SAVE
         mov     keysize,%eax
         cmp     $32, %eax
@@ -1838,7 +1838,7 @@ key_256_dec_update:
         GCM_ENC_DEC INITIAL_BLOCKS_AVX, GHASH_8_ENCRYPT_8_PARALLEL_AVX, GHASH_LAST_8_AVX, GHASH_MUL_AVX, DEC, 13
         FUNC_RESTORE
         ret
-ENDPROC(aesni_gcm_dec_update_avx_gen2)
+SYM_FUNC_END(aesni_gcm_dec_update_avx_gen2)
 
 ###############################################################################
 #void   aesni_gcm_finalize_avx_gen2(
@@ -1848,7 +1848,7 @@ ENDPROC(aesni_gcm_dec_update_avx_gen2)
 #        u64     auth_tag_len)# /* Authenticated Tag Length in bytes.
 #				Valid values are 16 (most likely), 12 or 8. */
 ###############################################################################
-ENTRY(aesni_gcm_finalize_avx_gen2)
+SYM_FUNC_START(aesni_gcm_finalize_avx_gen2)
         FUNC_SAVE
         mov	keysize,%eax
         cmp     $32, %eax
@@ -1867,7 +1867,7 @@ key_256_finalize:
         GCM_COMPLETE GHASH_MUL_AVX, 13, arg3, arg4
         FUNC_RESTORE
         ret
-ENDPROC(aesni_gcm_finalize_avx_gen2)
+SYM_FUNC_END(aesni_gcm_finalize_avx_gen2)
 
 #endif /* CONFIG_AS_AVX */
 
@@ -2746,12 +2746,12 @@ _initial_blocks_done\@:
 #        const   u8 *aad, /* Additional Authentication Data (AAD)*/
 #        u64     aad_len) /* Length of AAD in bytes. With RFC4106 this is going to be 8 or 12 Bytes */
 #############################################################
-ENTRY(aesni_gcm_init_avx_gen4)
+SYM_FUNC_START(aesni_gcm_init_avx_gen4)
         FUNC_SAVE
         INIT GHASH_MUL_AVX2, PRECOMPUTE_AVX2
         FUNC_RESTORE
         ret
-ENDPROC(aesni_gcm_init_avx_gen4)
+SYM_FUNC_END(aesni_gcm_init_avx_gen4)
 
 ###############################################################################
 #void   aesni_gcm_enc_avx_gen4(
@@ -2761,7 +2761,7 @@ ENDPROC(aesni_gcm_init_avx_gen4)
 #        const   u8 *in, /* Plaintext input */
 #        u64     plaintext_len) /* Length of data in Bytes for encryption. */
 ###############################################################################
-ENTRY(aesni_gcm_enc_update_avx_gen4)
+SYM_FUNC_START(aesni_gcm_enc_update_avx_gen4)
         FUNC_SAVE
         mov     keysize,%eax
         cmp     $32, %eax
@@ -2780,7 +2780,7 @@ key_256_enc_update4:
         GCM_ENC_DEC INITIAL_BLOCKS_AVX2, GHASH_8_ENCRYPT_8_PARALLEL_AVX2, GHASH_LAST_8_AVX2, GHASH_MUL_AVX2, ENC, 13
         FUNC_RESTORE
 	ret
-ENDPROC(aesni_gcm_enc_update_avx_gen4)
+SYM_FUNC_END(aesni_gcm_enc_update_avx_gen4)
 
 ###############################################################################
 #void   aesni_gcm_dec_update_avx_gen4(
@@ -2790,7 +2790,7 @@ ENDPROC(aesni_gcm_enc_update_avx_gen4)
 #        const   u8 *in, /* Ciphertext input */
 #        u64     plaintext_len) /* Length of data in Bytes for encryption. */
 ###############################################################################
-ENTRY(aesni_gcm_dec_update_avx_gen4)
+SYM_FUNC_START(aesni_gcm_dec_update_avx_gen4)
         FUNC_SAVE
         mov     keysize,%eax
         cmp     $32, %eax
@@ -2809,7 +2809,7 @@ key_256_dec_update4:
         GCM_ENC_DEC INITIAL_BLOCKS_AVX2, GHASH_8_ENCRYPT_8_PARALLEL_AVX2, GHASH_LAST_8_AVX2, GHASH_MUL_AVX2, DEC, 13
         FUNC_RESTORE
         ret
-ENDPROC(aesni_gcm_dec_update_avx_gen4)
+SYM_FUNC_END(aesni_gcm_dec_update_avx_gen4)
 
 ###############################################################################
 #void   aesni_gcm_finalize_avx_gen4(
@@ -2819,7 +2819,7 @@ ENDPROC(aesni_gcm_dec_update_avx_gen4)
 #        u64     auth_tag_len)# /* Authenticated Tag Length in bytes.
 #                              Valid values are 16 (most likely), 12 or 8. */
 ###############################################################################
-ENTRY(aesni_gcm_finalize_avx_gen4)
+SYM_FUNC_START(aesni_gcm_finalize_avx_gen4)
         FUNC_SAVE
         mov	keysize,%eax
         cmp     $32, %eax
@@ -2838,6 +2838,6 @@ key_256_finalize4:
         GCM_COMPLETE GHASH_MUL_AVX2, 13, arg3, arg4
         FUNC_RESTORE
         ret
-ENDPROC(aesni_gcm_finalize_avx_gen4)
+SYM_FUNC_END(aesni_gcm_finalize_avx_gen4)
 
 #endif /* CONFIG_AS_AVX2 */
diff --git a/arch/x86/crypto/blowfish-x86_64-asm_64.S b/arch/x86/crypto/blowfish-x86_64-asm_64.S
index 330db7a48af8..4222ac6d6584 100644
--- a/arch/x86/crypto/blowfish-x86_64-asm_64.S
+++ b/arch/x86/crypto/blowfish-x86_64-asm_64.S
@@ -103,7 +103,7 @@
 	bswapq 			RX0; \
 	xorq RX0, 		(RIO);
 
-ENTRY(__blowfish_enc_blk)
+SYM_FUNC_START(__blowfish_enc_blk)
 	/* input:
 	 *	%rdi: ctx
 	 *	%rsi: dst
@@ -139,9 +139,9 @@ ENTRY(__blowfish_enc_blk)
 .L__enc_xor:
 	xor_block();
 	ret;
-ENDPROC(__blowfish_enc_blk)
+SYM_FUNC_END(__blowfish_enc_blk)
 
-ENTRY(blowfish_dec_blk)
+SYM_FUNC_START(blowfish_dec_blk)
 	/* input:
 	 *	%rdi: ctx
 	 *	%rsi: dst
@@ -171,7 +171,7 @@ ENTRY(blowfish_dec_blk)
 	movq %r11, %r12;
 
 	ret;
-ENDPROC(blowfish_dec_blk)
+SYM_FUNC_END(blowfish_dec_blk)
 
 /**********************************************************************
   4-way blowfish, four blocks parallel
@@ -283,7 +283,7 @@ ENDPROC(blowfish_dec_blk)
 	bswapq 			RX3; \
 	xorq RX3,		24(RIO);
 
-ENTRY(__blowfish_enc_blk_4way)
+SYM_FUNC_START(__blowfish_enc_blk_4way)
 	/* input:
 	 *	%rdi: ctx
 	 *	%rsi: dst
@@ -330,9 +330,9 @@ ENTRY(__blowfish_enc_blk_4way)
 	popq %rbx;
 	popq %r12;
 	ret;
-ENDPROC(__blowfish_enc_blk_4way)
+SYM_FUNC_END(__blowfish_enc_blk_4way)
 
-ENTRY(blowfish_dec_blk_4way)
+SYM_FUNC_START(blowfish_dec_blk_4way)
 	/* input:
 	 *	%rdi: ctx
 	 *	%rsi: dst
@@ -365,4 +365,4 @@ ENTRY(blowfish_dec_blk_4way)
 	popq %r12;
 
 	ret;
-ENDPROC(blowfish_dec_blk_4way)
+SYM_FUNC_END(blowfish_dec_blk_4way)
diff --git a/arch/x86/crypto/camellia-aesni-avx-asm_64.S b/arch/x86/crypto/camellia-aesni-avx-asm_64.S
index f4408ca55fdb..d01ddd73de65 100644
--- a/arch/x86/crypto/camellia-aesni-avx-asm_64.S
+++ b/arch/x86/crypto/camellia-aesni-avx-asm_64.S
@@ -893,7 +893,7 @@ SYM_FUNC_START_LOCAL(__camellia_dec_blk16)
 	jmp .Ldec_max24;
 SYM_FUNC_END(__camellia_dec_blk16)
 
-ENTRY(camellia_ecb_enc_16way)
+SYM_FUNC_START(camellia_ecb_enc_16way)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst (16 blocks)
@@ -916,9 +916,9 @@ ENTRY(camellia_ecb_enc_16way)
 
 	FRAME_END
 	ret;
-ENDPROC(camellia_ecb_enc_16way)
+SYM_FUNC_END(camellia_ecb_enc_16way)
 
-ENTRY(camellia_ecb_dec_16way)
+SYM_FUNC_START(camellia_ecb_dec_16way)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst (16 blocks)
@@ -946,9 +946,9 @@ ENTRY(camellia_ecb_dec_16way)
 
 	FRAME_END
 	ret;
-ENDPROC(camellia_ecb_dec_16way)
+SYM_FUNC_END(camellia_ecb_dec_16way)
 
-ENTRY(camellia_cbc_dec_16way)
+SYM_FUNC_START(camellia_cbc_dec_16way)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst (16 blocks)
@@ -997,7 +997,7 @@ ENTRY(camellia_cbc_dec_16way)
 
 	FRAME_END
 	ret;
-ENDPROC(camellia_cbc_dec_16way)
+SYM_FUNC_END(camellia_cbc_dec_16way)
 
 #define inc_le128(x, minus_one, tmp) \
 	vpcmpeqq minus_one, x, tmp; \
@@ -1005,7 +1005,7 @@ ENDPROC(camellia_cbc_dec_16way)
 	vpslldq $8, tmp, tmp; \
 	vpsubq tmp, x, x;
 
-ENTRY(camellia_ctr_16way)
+SYM_FUNC_START(camellia_ctr_16way)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst (16 blocks)
@@ -1110,7 +1110,7 @@ ENTRY(camellia_ctr_16way)
 
 	FRAME_END
 	ret;
-ENDPROC(camellia_ctr_16way)
+SYM_FUNC_END(camellia_ctr_16way)
 
 #define gf128mul_x_ble(iv, mask, tmp) \
 	vpsrad $31, iv, tmp; \
@@ -1256,7 +1256,7 @@ SYM_FUNC_START_LOCAL(camellia_xts_crypt_16way)
 	ret;
 SYM_FUNC_END(camellia_xts_crypt_16way)
 
-ENTRY(camellia_xts_enc_16way)
+SYM_FUNC_START(camellia_xts_enc_16way)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst (16 blocks)
@@ -1268,9 +1268,9 @@ ENTRY(camellia_xts_enc_16way)
 	leaq __camellia_enc_blk16, %r9;
 
 	jmp camellia_xts_crypt_16way;
-ENDPROC(camellia_xts_enc_16way)
+SYM_FUNC_END(camellia_xts_enc_16way)
 
-ENTRY(camellia_xts_dec_16way)
+SYM_FUNC_START(camellia_xts_dec_16way)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst (16 blocks)
@@ -1286,4 +1286,4 @@ ENTRY(camellia_xts_dec_16way)
 	leaq __camellia_dec_blk16, %r9;
 
 	jmp camellia_xts_crypt_16way;
-ENDPROC(camellia_xts_dec_16way)
+SYM_FUNC_END(camellia_xts_dec_16way)
diff --git a/arch/x86/crypto/camellia-aesni-avx2-asm_64.S b/arch/x86/crypto/camellia-aesni-avx2-asm_64.S
index 72ae3edd0997..563ef6e83cdd 100644
--- a/arch/x86/crypto/camellia-aesni-avx2-asm_64.S
+++ b/arch/x86/crypto/camellia-aesni-avx2-asm_64.S
@@ -931,7 +931,7 @@ SYM_FUNC_START_LOCAL(__camellia_dec_blk32)
 	jmp .Ldec_max24;
 SYM_FUNC_END(__camellia_dec_blk32)
 
-ENTRY(camellia_ecb_enc_32way)
+SYM_FUNC_START(camellia_ecb_enc_32way)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst (32 blocks)
@@ -958,9 +958,9 @@ ENTRY(camellia_ecb_enc_32way)
 
 	FRAME_END
 	ret;
-ENDPROC(camellia_ecb_enc_32way)
+SYM_FUNC_END(camellia_ecb_enc_32way)
 
-ENTRY(camellia_ecb_dec_32way)
+SYM_FUNC_START(camellia_ecb_dec_32way)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst (32 blocks)
@@ -992,9 +992,9 @@ ENTRY(camellia_ecb_dec_32way)
 
 	FRAME_END
 	ret;
-ENDPROC(camellia_ecb_dec_32way)
+SYM_FUNC_END(camellia_ecb_dec_32way)
 
-ENTRY(camellia_cbc_dec_32way)
+SYM_FUNC_START(camellia_cbc_dec_32way)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst (32 blocks)
@@ -1060,7 +1060,7 @@ ENTRY(camellia_cbc_dec_32way)
 
 	FRAME_END
 	ret;
-ENDPROC(camellia_cbc_dec_32way)
+SYM_FUNC_END(camellia_cbc_dec_32way)
 
 #define inc_le128(x, minus_one, tmp) \
 	vpcmpeqq minus_one, x, tmp; \
@@ -1076,7 +1076,7 @@ ENDPROC(camellia_cbc_dec_32way)
 	vpslldq $8, tmp1, tmp1; \
 	vpsubq tmp1, x, x;
 
-ENTRY(camellia_ctr_32way)
+SYM_FUNC_START(camellia_ctr_32way)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst (32 blocks)
@@ -1200,7 +1200,7 @@ ENTRY(camellia_ctr_32way)
 
 	FRAME_END
 	ret;
-ENDPROC(camellia_ctr_32way)
+SYM_FUNC_END(camellia_ctr_32way)
 
 #define gf128mul_x_ble(iv, mask, tmp) \
 	vpsrad $31, iv, tmp; \
@@ -1369,7 +1369,7 @@ SYM_FUNC_START_LOCAL(camellia_xts_crypt_32way)
 	ret;
 SYM_FUNC_END(camellia_xts_crypt_32way)
 
-ENTRY(camellia_xts_enc_32way)
+SYM_FUNC_START(camellia_xts_enc_32way)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst (32 blocks)
@@ -1382,9 +1382,9 @@ ENTRY(camellia_xts_enc_32way)
 	leaq __camellia_enc_blk32, %r9;
 
 	jmp camellia_xts_crypt_32way;
-ENDPROC(camellia_xts_enc_32way)
+SYM_FUNC_END(camellia_xts_enc_32way)
 
-ENTRY(camellia_xts_dec_32way)
+SYM_FUNC_START(camellia_xts_dec_32way)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst (32 blocks)
@@ -1400,4 +1400,4 @@ ENTRY(camellia_xts_dec_32way)
 	leaq __camellia_dec_blk32, %r9;
 
 	jmp camellia_xts_crypt_32way;
-ENDPROC(camellia_xts_dec_32way)
+SYM_FUNC_END(camellia_xts_dec_32way)
diff --git a/arch/x86/crypto/camellia-x86_64-asm_64.S b/arch/x86/crypto/camellia-x86_64-asm_64.S
index 23528bc18fc6..1372e6408850 100644
--- a/arch/x86/crypto/camellia-x86_64-asm_64.S
+++ b/arch/x86/crypto/camellia-x86_64-asm_64.S
@@ -175,7 +175,7 @@
 	bswapq				RAB0; \
 	movq RAB0,			4*2(RIO);
 
-ENTRY(__camellia_enc_blk)
+SYM_FUNC_START(__camellia_enc_blk)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst
@@ -220,9 +220,9 @@ ENTRY(__camellia_enc_blk)
 
 	movq RR12, %r12;
 	ret;
-ENDPROC(__camellia_enc_blk)
+SYM_FUNC_END(__camellia_enc_blk)
 
-ENTRY(camellia_dec_blk)
+SYM_FUNC_START(camellia_dec_blk)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst
@@ -258,7 +258,7 @@ ENTRY(camellia_dec_blk)
 
 	movq RR12, %r12;
 	ret;
-ENDPROC(camellia_dec_blk)
+SYM_FUNC_END(camellia_dec_blk)
 
 /**********************************************************************
   2-way camellia
@@ -409,7 +409,7 @@ ENDPROC(camellia_dec_blk)
 		bswapq				RAB1; \
 		movq RAB1,			12*2(RIO);
 
-ENTRY(__camellia_enc_blk_2way)
+SYM_FUNC_START(__camellia_enc_blk_2way)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst
@@ -456,9 +456,9 @@ ENTRY(__camellia_enc_blk_2way)
 	movq RR12, %r12;
 	popq %rbx;
 	ret;
-ENDPROC(__camellia_enc_blk_2way)
+SYM_FUNC_END(__camellia_enc_blk_2way)
 
-ENTRY(camellia_dec_blk_2way)
+SYM_FUNC_START(camellia_dec_blk_2way)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst
@@ -496,4 +496,4 @@ ENTRY(camellia_dec_blk_2way)
 	movq RR12, %r12;
 	movq RXOR, %rbx;
 	ret;
-ENDPROC(camellia_dec_blk_2way)
+SYM_FUNC_END(camellia_dec_blk_2way)
diff --git a/arch/x86/crypto/cast5-avx-x86_64-asm_64.S b/arch/x86/crypto/cast5-avx-x86_64-asm_64.S
index ef86c6a966de..8a6181b08b59 100644
--- a/arch/x86/crypto/cast5-avx-x86_64-asm_64.S
+++ b/arch/x86/crypto/cast5-avx-x86_64-asm_64.S
@@ -359,7 +359,7 @@ SYM_FUNC_START_LOCAL(__cast5_dec_blk16)
 	jmp .L__dec_tail;
 SYM_FUNC_END(__cast5_dec_blk16)
 
-ENTRY(cast5_ecb_enc_16way)
+SYM_FUNC_START(cast5_ecb_enc_16way)
 	/* input:
 	 *	%rdi: ctx
 	 *	%rsi: dst
@@ -394,9 +394,9 @@ ENTRY(cast5_ecb_enc_16way)
 	popq %r15;
 	FRAME_END
 	ret;
-ENDPROC(cast5_ecb_enc_16way)
+SYM_FUNC_END(cast5_ecb_enc_16way)
 
-ENTRY(cast5_ecb_dec_16way)
+SYM_FUNC_START(cast5_ecb_dec_16way)
 	/* input:
 	 *	%rdi: ctx
 	 *	%rsi: dst
@@ -432,9 +432,9 @@ ENTRY(cast5_ecb_dec_16way)
 	popq %r15;
 	FRAME_END
 	ret;
-ENDPROC(cast5_ecb_dec_16way)
+SYM_FUNC_END(cast5_ecb_dec_16way)
 
-ENTRY(cast5_cbc_dec_16way)
+SYM_FUNC_START(cast5_cbc_dec_16way)
 	/* input:
 	 *	%rdi: ctx
 	 *	%rsi: dst
@@ -484,9 +484,9 @@ ENTRY(cast5_cbc_dec_16way)
 	popq %r12;
 	FRAME_END
 	ret;
-ENDPROC(cast5_cbc_dec_16way)
+SYM_FUNC_END(cast5_cbc_dec_16way)
 
-ENTRY(cast5_ctr_16way)
+SYM_FUNC_START(cast5_ctr_16way)
 	/* input:
 	 *	%rdi: ctx
 	 *	%rsi: dst
@@ -560,4 +560,4 @@ ENTRY(cast5_ctr_16way)
 	popq %r12;
 	FRAME_END
 	ret;
-ENDPROC(cast5_ctr_16way)
+SYM_FUNC_END(cast5_ctr_16way)
diff --git a/arch/x86/crypto/cast6-avx-x86_64-asm_64.S b/arch/x86/crypto/cast6-avx-x86_64-asm_64.S
index b080a7454e70..932a3ce32a88 100644
--- a/arch/x86/crypto/cast6-avx-x86_64-asm_64.S
+++ b/arch/x86/crypto/cast6-avx-x86_64-asm_64.S
@@ -341,7 +341,7 @@ SYM_FUNC_START_LOCAL(__cast6_dec_blk8)
 	ret;
 SYM_FUNC_END(__cast6_dec_blk8)
 
-ENTRY(cast6_ecb_enc_8way)
+SYM_FUNC_START(cast6_ecb_enc_8way)
 	/* input:
 	 *	%rdi: ctx
 	 *	%rsi: dst
@@ -362,9 +362,9 @@ ENTRY(cast6_ecb_enc_8way)
 	popq %r15;
 	FRAME_END
 	ret;
-ENDPROC(cast6_ecb_enc_8way)
+SYM_FUNC_END(cast6_ecb_enc_8way)
 
-ENTRY(cast6_ecb_dec_8way)
+SYM_FUNC_START(cast6_ecb_dec_8way)
 	/* input:
 	 *	%rdi: ctx
 	 *	%rsi: dst
@@ -385,9 +385,9 @@ ENTRY(cast6_ecb_dec_8way)
 	popq %r15;
 	FRAME_END
 	ret;
-ENDPROC(cast6_ecb_dec_8way)
+SYM_FUNC_END(cast6_ecb_dec_8way)
 
-ENTRY(cast6_cbc_dec_8way)
+SYM_FUNC_START(cast6_cbc_dec_8way)
 	/* input:
 	 *	%rdi: ctx
 	 *	%rsi: dst
@@ -411,9 +411,9 @@ ENTRY(cast6_cbc_dec_8way)
 	popq %r12;
 	FRAME_END
 	ret;
-ENDPROC(cast6_cbc_dec_8way)
+SYM_FUNC_END(cast6_cbc_dec_8way)
 
-ENTRY(cast6_ctr_8way)
+SYM_FUNC_START(cast6_ctr_8way)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst
@@ -439,9 +439,9 @@ ENTRY(cast6_ctr_8way)
 	popq %r12;
 	FRAME_END
 	ret;
-ENDPROC(cast6_ctr_8way)
+SYM_FUNC_END(cast6_ctr_8way)
 
-ENTRY(cast6_xts_enc_8way)
+SYM_FUNC_START(cast6_xts_enc_8way)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst
@@ -466,9 +466,9 @@ ENTRY(cast6_xts_enc_8way)
 	popq %r15;
 	FRAME_END
 	ret;
-ENDPROC(cast6_xts_enc_8way)
+SYM_FUNC_END(cast6_xts_enc_8way)
 
-ENTRY(cast6_xts_dec_8way)
+SYM_FUNC_START(cast6_xts_dec_8way)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst
@@ -493,4 +493,4 @@ ENTRY(cast6_xts_dec_8way)
 	popq %r15;
 	FRAME_END
 	ret;
-ENDPROC(cast6_xts_dec_8way)
+SYM_FUNC_END(cast6_xts_dec_8way)
diff --git a/arch/x86/crypto/chacha-avx2-x86_64.S b/arch/x86/crypto/chacha-avx2-x86_64.S
index 831e4434fc20..ee9a40ab4109 100644
--- a/arch/x86/crypto/chacha-avx2-x86_64.S
+++ b/arch/x86/crypto/chacha-avx2-x86_64.S
@@ -34,7 +34,7 @@ CTR4BL:	.octa 0x00000000000000000000000000000002
 
 .text
 
-ENTRY(chacha_2block_xor_avx2)
+SYM_FUNC_START(chacha_2block_xor_avx2)
 	# %rdi: Input state matrix, s
 	# %rsi: up to 2 data blocks output, o
 	# %rdx: up to 2 data blocks input, i
@@ -224,9 +224,9 @@ ENTRY(chacha_2block_xor_avx2)
 	lea		-8(%r10),%rsp
 	jmp		.Ldone2
 
-ENDPROC(chacha_2block_xor_avx2)
+SYM_FUNC_END(chacha_2block_xor_avx2)
 
-ENTRY(chacha_4block_xor_avx2)
+SYM_FUNC_START(chacha_4block_xor_avx2)
 	# %rdi: Input state matrix, s
 	# %rsi: up to 4 data blocks output, o
 	# %rdx: up to 4 data blocks input, i
@@ -529,9 +529,9 @@ ENTRY(chacha_4block_xor_avx2)
 	lea		-8(%r10),%rsp
 	jmp		.Ldone4
 
-ENDPROC(chacha_4block_xor_avx2)
+SYM_FUNC_END(chacha_4block_xor_avx2)
 
-ENTRY(chacha_8block_xor_avx2)
+SYM_FUNC_START(chacha_8block_xor_avx2)
 	# %rdi: Input state matrix, s
 	# %rsi: up to 8 data blocks output, o
 	# %rdx: up to 8 data blocks input, i
@@ -1018,4 +1018,4 @@ ENTRY(chacha_8block_xor_avx2)
 
 	jmp		.Ldone8
 
-ENDPROC(chacha_8block_xor_avx2)
+SYM_FUNC_END(chacha_8block_xor_avx2)
diff --git a/arch/x86/crypto/chacha-avx512vl-x86_64.S b/arch/x86/crypto/chacha-avx512vl-x86_64.S
index 848f9c75fd4f..bb193fde123a 100644
--- a/arch/x86/crypto/chacha-avx512vl-x86_64.S
+++ b/arch/x86/crypto/chacha-avx512vl-x86_64.S
@@ -24,7 +24,7 @@ CTR8BL:	.octa 0x00000003000000020000000100000000
 
 .text
 
-ENTRY(chacha_2block_xor_avx512vl)
+SYM_FUNC_START(chacha_2block_xor_avx512vl)
 	# %rdi: Input state matrix, s
 	# %rsi: up to 2 data blocks output, o
 	# %rdx: up to 2 data blocks input, i
@@ -187,9 +187,9 @@ ENTRY(chacha_2block_xor_avx512vl)
 
 	jmp		.Ldone2
 
-ENDPROC(chacha_2block_xor_avx512vl)
+SYM_FUNC_END(chacha_2block_xor_avx512vl)
 
-ENTRY(chacha_4block_xor_avx512vl)
+SYM_FUNC_START(chacha_4block_xor_avx512vl)
 	# %rdi: Input state matrix, s
 	# %rsi: up to 4 data blocks output, o
 	# %rdx: up to 4 data blocks input, i
@@ -453,9 +453,9 @@ ENTRY(chacha_4block_xor_avx512vl)
 
 	jmp		.Ldone4
 
-ENDPROC(chacha_4block_xor_avx512vl)
+SYM_FUNC_END(chacha_4block_xor_avx512vl)
 
-ENTRY(chacha_8block_xor_avx512vl)
+SYM_FUNC_START(chacha_8block_xor_avx512vl)
 	# %rdi: Input state matrix, s
 	# %rsi: up to 8 data blocks output, o
 	# %rdx: up to 8 data blocks input, i
@@ -833,4 +833,4 @@ ENTRY(chacha_8block_xor_avx512vl)
 
 	jmp		.Ldone8
 
-ENDPROC(chacha_8block_xor_avx512vl)
+SYM_FUNC_END(chacha_8block_xor_avx512vl)
diff --git a/arch/x86/crypto/chacha-ssse3-x86_64.S b/arch/x86/crypto/chacha-ssse3-x86_64.S
index 361d2bfc253c..a38ab2512a6f 100644
--- a/arch/x86/crypto/chacha-ssse3-x86_64.S
+++ b/arch/x86/crypto/chacha-ssse3-x86_64.S
@@ -111,7 +111,7 @@ SYM_FUNC_START_LOCAL(chacha_permute)
 	ret
 SYM_FUNC_END(chacha_permute)
 
-ENTRY(chacha_block_xor_ssse3)
+SYM_FUNC_START(chacha_block_xor_ssse3)
 	# %rdi: Input state matrix, s
 	# %rsi: up to 1 data block output, o
 	# %rdx: up to 1 data block input, i
@@ -197,9 +197,9 @@ ENTRY(chacha_block_xor_ssse3)
 	lea		-8(%r10),%rsp
 	jmp		.Ldone
 
-ENDPROC(chacha_block_xor_ssse3)
+SYM_FUNC_END(chacha_block_xor_ssse3)
 
-ENTRY(hchacha_block_ssse3)
+SYM_FUNC_START(hchacha_block_ssse3)
 	# %rdi: Input state matrix, s
 	# %rsi: output (8 32-bit words)
 	# %edx: nrounds
@@ -218,9 +218,9 @@ ENTRY(hchacha_block_ssse3)
 
 	FRAME_END
 	ret
-ENDPROC(hchacha_block_ssse3)
+SYM_FUNC_END(hchacha_block_ssse3)
 
-ENTRY(chacha_4block_xor_ssse3)
+SYM_FUNC_START(chacha_4block_xor_ssse3)
 	# %rdi: Input state matrix, s
 	# %rsi: up to 4 data blocks output, o
 	# %rdx: up to 4 data blocks input, i
@@ -788,4 +788,4 @@ ENTRY(chacha_4block_xor_ssse3)
 
 	jmp		.Ldone4
 
-ENDPROC(chacha_4block_xor_ssse3)
+SYM_FUNC_END(chacha_4block_xor_ssse3)
diff --git a/arch/x86/crypto/crc32-pclmul_asm.S b/arch/x86/crypto/crc32-pclmul_asm.S
index 1c099dc08cc3..9fd28ff65bc2 100644
--- a/arch/x86/crypto/crc32-pclmul_asm.S
+++ b/arch/x86/crypto/crc32-pclmul_asm.S
@@ -103,7 +103,7 @@
  *	                     size_t len, uint crc32)
  */
 
-ENTRY(crc32_pclmul_le_16) /* buffer and buffer size are 16 bytes aligned */
+SYM_FUNC_START(crc32_pclmul_le_16) /* buffer and buffer size are 16 bytes aligned */
 	movdqa  (BUF), %xmm1
 	movdqa  0x10(BUF), %xmm2
 	movdqa  0x20(BUF), %xmm3
@@ -238,4 +238,4 @@ fold_64:
 	PEXTRD  0x01, %xmm1, %eax
 
 	ret
-ENDPROC(crc32_pclmul_le_16)
+SYM_FUNC_END(crc32_pclmul_le_16)
diff --git a/arch/x86/crypto/crc32c-pcl-intel-asm_64.S b/arch/x86/crypto/crc32c-pcl-intel-asm_64.S
index d9b734d0c8cc..0e6690e3618c 100644
--- a/arch/x86/crypto/crc32c-pcl-intel-asm_64.S
+++ b/arch/x86/crypto/crc32c-pcl-intel-asm_64.S
@@ -74,7 +74,7 @@
 # unsigned int crc_pcl(u8 *buffer, int len, unsigned int crc_init);
 
 .text
-ENTRY(crc_pcl)
+SYM_FUNC_START(crc_pcl)
 #define    bufp		%rdi
 #define    bufp_dw	%edi
 #define    bufp_w	%di
@@ -311,7 +311,7 @@ do_return:
 	popq    %rdi
 	popq    %rbx
         ret
-ENDPROC(crc_pcl)
+SYM_FUNC_END(crc_pcl)
 
 .section	.rodata, "a", @progbits
         ################################################################
diff --git a/arch/x86/crypto/crct10dif-pcl-asm_64.S b/arch/x86/crypto/crct10dif-pcl-asm_64.S
index 3d873e67749d..b2533d63030e 100644
--- a/arch/x86/crypto/crct10dif-pcl-asm_64.S
+++ b/arch/x86/crypto/crct10dif-pcl-asm_64.S
@@ -95,7 +95,7 @@
 # Assumes len >= 16.
 #
 .align 16
-ENTRY(crc_t10dif_pcl)
+SYM_FUNC_START(crc_t10dif_pcl)
 
 	movdqa	.Lbswap_mask(%rip), BSWAP_MASK
 
@@ -280,7 +280,7 @@ ENTRY(crc_t10dif_pcl)
 	jge	.Lfold_16_bytes_loop		# 32 <= len <= 255
 	add	$16, len
 	jmp	.Lhandle_partial_segment	# 17 <= len <= 31
-ENDPROC(crc_t10dif_pcl)
+SYM_FUNC_END(crc_t10dif_pcl)
 
 .section	.rodata, "a", @progbits
 .align 16
diff --git a/arch/x86/crypto/des3_ede-asm_64.S b/arch/x86/crypto/des3_ede-asm_64.S
index 7fca43099a5f..fac0fdc3f25d 100644
--- a/arch/x86/crypto/des3_ede-asm_64.S
+++ b/arch/x86/crypto/des3_ede-asm_64.S
@@ -162,7 +162,7 @@
 	movl   left##d,   (io); \
 	movl   right##d, 4(io);
 
-ENTRY(des3_ede_x86_64_crypt_blk)
+SYM_FUNC_START(des3_ede_x86_64_crypt_blk)
 	/* input:
 	 *	%rdi: round keys, CTX
 	 *	%rsi: dst
@@ -244,7 +244,7 @@ ENTRY(des3_ede_x86_64_crypt_blk)
 	popq %rbx;
 
 	ret;
-ENDPROC(des3_ede_x86_64_crypt_blk)
+SYM_FUNC_END(des3_ede_x86_64_crypt_blk)
 
 /***********************************************************************
  * 3-way 3DES
@@ -418,7 +418,7 @@ ENDPROC(des3_ede_x86_64_crypt_blk)
 #define __movq(src, dst) \
 	movq src, dst;
 
-ENTRY(des3_ede_x86_64_crypt_blk_3way)
+SYM_FUNC_START(des3_ede_x86_64_crypt_blk_3way)
 	/* input:
 	 *	%rdi: ctx, round keys
 	 *	%rsi: dst (3 blocks)
@@ -529,7 +529,7 @@ ENTRY(des3_ede_x86_64_crypt_blk_3way)
 	popq %rbx;
 
 	ret;
-ENDPROC(des3_ede_x86_64_crypt_blk_3way)
+SYM_FUNC_END(des3_ede_x86_64_crypt_blk_3way)
 
 .section	.rodata, "a", @progbits
 .align 16
diff --git a/arch/x86/crypto/ghash-clmulni-intel_asm.S b/arch/x86/crypto/ghash-clmulni-intel_asm.S
index e81da25a33ca..bb9735fbb865 100644
--- a/arch/x86/crypto/ghash-clmulni-intel_asm.S
+++ b/arch/x86/crypto/ghash-clmulni-intel_asm.S
@@ -90,7 +90,7 @@ SYM_FUNC_START_LOCAL(__clmul_gf128mul_ble)
 SYM_FUNC_END(__clmul_gf128mul_ble)
 
 /* void clmul_ghash_mul(char *dst, const u128 *shash) */
-ENTRY(clmul_ghash_mul)
+SYM_FUNC_START(clmul_ghash_mul)
 	FRAME_BEGIN
 	movups (%rdi), DATA
 	movups (%rsi), SHASH
@@ -101,13 +101,13 @@ ENTRY(clmul_ghash_mul)
 	movups DATA, (%rdi)
 	FRAME_END
 	ret
-ENDPROC(clmul_ghash_mul)
+SYM_FUNC_END(clmul_ghash_mul)
 
 /*
  * void clmul_ghash_update(char *dst, const char *src, unsigned int srclen,
  *			   const u128 *shash);
  */
-ENTRY(clmul_ghash_update)
+SYM_FUNC_START(clmul_ghash_update)
 	FRAME_BEGIN
 	cmp $16, %rdx
 	jb .Lupdate_just_ret	# check length
@@ -130,4 +130,4 @@ ENTRY(clmul_ghash_update)
 .Lupdate_just_ret:
 	FRAME_END
 	ret
-ENDPROC(clmul_ghash_update)
+SYM_FUNC_END(clmul_ghash_update)
diff --git a/arch/x86/crypto/nh-avx2-x86_64.S b/arch/x86/crypto/nh-avx2-x86_64.S
index f7946ea1b704..b22c7b936272 100644
--- a/arch/x86/crypto/nh-avx2-x86_64.S
+++ b/arch/x86/crypto/nh-avx2-x86_64.S
@@ -69,7 +69,7 @@
  *
  * It's guaranteed that message_len % 16 == 0.
  */
-ENTRY(nh_avx2)
+SYM_FUNC_START(nh_avx2)
 
 	vmovdqu		0x00(KEY), K0
 	vmovdqu		0x10(KEY), K1
@@ -154,4 +154,4 @@ ENTRY(nh_avx2)
 	vpaddq		T4, T0, T0
 	vmovdqu		T0, (HASH)
 	ret
-ENDPROC(nh_avx2)
+SYM_FUNC_END(nh_avx2)
diff --git a/arch/x86/crypto/nh-sse2-x86_64.S b/arch/x86/crypto/nh-sse2-x86_64.S
index 51f52d4ab4bb..d7ae22dd6683 100644
--- a/arch/x86/crypto/nh-sse2-x86_64.S
+++ b/arch/x86/crypto/nh-sse2-x86_64.S
@@ -71,7 +71,7 @@
  *
  * It's guaranteed that message_len % 16 == 0.
  */
-ENTRY(nh_sse2)
+SYM_FUNC_START(nh_sse2)
 
 	movdqu		0x00(KEY), K0
 	movdqu		0x10(KEY), K1
@@ -120,4 +120,4 @@ ENTRY(nh_sse2)
 	movdqu		T0, 0x00(HASH)
 	movdqu		T1, 0x10(HASH)
 	ret
-ENDPROC(nh_sse2)
+SYM_FUNC_END(nh_sse2)
diff --git a/arch/x86/crypto/poly1305-avx2-x86_64.S b/arch/x86/crypto/poly1305-avx2-x86_64.S
index 8b341bc29d41..d6063feda9da 100644
--- a/arch/x86/crypto/poly1305-avx2-x86_64.S
+++ b/arch/x86/crypto/poly1305-avx2-x86_64.S
@@ -79,7 +79,7 @@ ORMASK:	.octa 0x00000000010000000000000001000000
 #define d3 %r12
 #define d4 %r13
 
-ENTRY(poly1305_4block_avx2)
+SYM_FUNC_START(poly1305_4block_avx2)
 	# %rdi: Accumulator h[5]
 	# %rsi: 64 byte input block m
 	# %rdx: Poly1305 key r[5]
@@ -387,4 +387,4 @@ ENTRY(poly1305_4block_avx2)
 	pop		%r12
 	pop		%rbx
 	ret
-ENDPROC(poly1305_4block_avx2)
+SYM_FUNC_END(poly1305_4block_avx2)
diff --git a/arch/x86/crypto/poly1305-sse2-x86_64.S b/arch/x86/crypto/poly1305-sse2-x86_64.S
index 5578f846e622..d8ea29b96640 100644
--- a/arch/x86/crypto/poly1305-sse2-x86_64.S
+++ b/arch/x86/crypto/poly1305-sse2-x86_64.S
@@ -46,7 +46,7 @@ ORMASK:	.octa 0x00000000010000000000000001000000
 #define d3 %r11
 #define d4 %r12
 
-ENTRY(poly1305_block_sse2)
+SYM_FUNC_START(poly1305_block_sse2)
 	# %rdi: Accumulator h[5]
 	# %rsi: 16 byte input block m
 	# %rdx: Poly1305 key r[5]
@@ -276,7 +276,7 @@ ENTRY(poly1305_block_sse2)
 	pop		%r12
 	pop		%rbx
 	ret
-ENDPROC(poly1305_block_sse2)
+SYM_FUNC_END(poly1305_block_sse2)
 
 
 #define u0 0x00(%r8)
@@ -301,7 +301,7 @@ ENDPROC(poly1305_block_sse2)
 #undef d0
 #define d0 %r13
 
-ENTRY(poly1305_2block_sse2)
+SYM_FUNC_START(poly1305_2block_sse2)
 	# %rdi: Accumulator h[5]
 	# %rsi: 16 byte input block m
 	# %rdx: Poly1305 key r[5]
@@ -587,4 +587,4 @@ ENTRY(poly1305_2block_sse2)
 	pop		%r12
 	pop		%rbx
 	ret
-ENDPROC(poly1305_2block_sse2)
+SYM_FUNC_END(poly1305_2block_sse2)
diff --git a/arch/x86/crypto/serpent-avx-x86_64-asm_64.S b/arch/x86/crypto/serpent-avx-x86_64-asm_64.S
index a098aa015784..ba9e4c1e7f5c 100644
--- a/arch/x86/crypto/serpent-avx-x86_64-asm_64.S
+++ b/arch/x86/crypto/serpent-avx-x86_64-asm_64.S
@@ -662,7 +662,7 @@ SYM_FUNC_START_LOCAL(__serpent_dec_blk8_avx)
 	ret;
 SYM_FUNC_END(__serpent_dec_blk8_avx)
 
-ENTRY(serpent_ecb_enc_8way_avx)
+SYM_FUNC_START(serpent_ecb_enc_8way_avx)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst
@@ -678,9 +678,9 @@ ENTRY(serpent_ecb_enc_8way_avx)
 
 	FRAME_END
 	ret;
-ENDPROC(serpent_ecb_enc_8way_avx)
+SYM_FUNC_END(serpent_ecb_enc_8way_avx)
 
-ENTRY(serpent_ecb_dec_8way_avx)
+SYM_FUNC_START(serpent_ecb_dec_8way_avx)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst
@@ -696,9 +696,9 @@ ENTRY(serpent_ecb_dec_8way_avx)
 
 	FRAME_END
 	ret;
-ENDPROC(serpent_ecb_dec_8way_avx)
+SYM_FUNC_END(serpent_ecb_dec_8way_avx)
 
-ENTRY(serpent_cbc_dec_8way_avx)
+SYM_FUNC_START(serpent_cbc_dec_8way_avx)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst
@@ -714,9 +714,9 @@ ENTRY(serpent_cbc_dec_8way_avx)
 
 	FRAME_END
 	ret;
-ENDPROC(serpent_cbc_dec_8way_avx)
+SYM_FUNC_END(serpent_cbc_dec_8way_avx)
 
-ENTRY(serpent_ctr_8way_avx)
+SYM_FUNC_START(serpent_ctr_8way_avx)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst
@@ -734,9 +734,9 @@ ENTRY(serpent_ctr_8way_avx)
 
 	FRAME_END
 	ret;
-ENDPROC(serpent_ctr_8way_avx)
+SYM_FUNC_END(serpent_ctr_8way_avx)
 
-ENTRY(serpent_xts_enc_8way_avx)
+SYM_FUNC_START(serpent_xts_enc_8way_avx)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst
@@ -756,9 +756,9 @@ ENTRY(serpent_xts_enc_8way_avx)
 
 	FRAME_END
 	ret;
-ENDPROC(serpent_xts_enc_8way_avx)
+SYM_FUNC_END(serpent_xts_enc_8way_avx)
 
-ENTRY(serpent_xts_dec_8way_avx)
+SYM_FUNC_START(serpent_xts_dec_8way_avx)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst
@@ -778,4 +778,4 @@ ENTRY(serpent_xts_dec_8way_avx)
 
 	FRAME_END
 	ret;
-ENDPROC(serpent_xts_dec_8way_avx)
+SYM_FUNC_END(serpent_xts_dec_8way_avx)
diff --git a/arch/x86/crypto/serpent-avx2-asm_64.S b/arch/x86/crypto/serpent-avx2-asm_64.S
index 6149ba80b4d1..c9648aeae705 100644
--- a/arch/x86/crypto/serpent-avx2-asm_64.S
+++ b/arch/x86/crypto/serpent-avx2-asm_64.S
@@ -668,7 +668,7 @@ SYM_FUNC_START_LOCAL(__serpent_dec_blk16)
 	ret;
 SYM_FUNC_END(__serpent_dec_blk16)
 
-ENTRY(serpent_ecb_enc_16way)
+SYM_FUNC_START(serpent_ecb_enc_16way)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst
@@ -688,9 +688,9 @@ ENTRY(serpent_ecb_enc_16way)
 
 	FRAME_END
 	ret;
-ENDPROC(serpent_ecb_enc_16way)
+SYM_FUNC_END(serpent_ecb_enc_16way)
 
-ENTRY(serpent_ecb_dec_16way)
+SYM_FUNC_START(serpent_ecb_dec_16way)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst
@@ -710,9 +710,9 @@ ENTRY(serpent_ecb_dec_16way)
 
 	FRAME_END
 	ret;
-ENDPROC(serpent_ecb_dec_16way)
+SYM_FUNC_END(serpent_ecb_dec_16way)
 
-ENTRY(serpent_cbc_dec_16way)
+SYM_FUNC_START(serpent_cbc_dec_16way)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst
@@ -733,9 +733,9 @@ ENTRY(serpent_cbc_dec_16way)
 
 	FRAME_END
 	ret;
-ENDPROC(serpent_cbc_dec_16way)
+SYM_FUNC_END(serpent_cbc_dec_16way)
 
-ENTRY(serpent_ctr_16way)
+SYM_FUNC_START(serpent_ctr_16way)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst (16 blocks)
@@ -758,9 +758,9 @@ ENTRY(serpent_ctr_16way)
 
 	FRAME_END
 	ret;
-ENDPROC(serpent_ctr_16way)
+SYM_FUNC_END(serpent_ctr_16way)
 
-ENTRY(serpent_xts_enc_16way)
+SYM_FUNC_START(serpent_xts_enc_16way)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst (16 blocks)
@@ -784,9 +784,9 @@ ENTRY(serpent_xts_enc_16way)
 
 	FRAME_END
 	ret;
-ENDPROC(serpent_xts_enc_16way)
+SYM_FUNC_END(serpent_xts_enc_16way)
 
-ENTRY(serpent_xts_dec_16way)
+SYM_FUNC_START(serpent_xts_dec_16way)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst (16 blocks)
@@ -810,4 +810,4 @@ ENTRY(serpent_xts_dec_16way)
 
 	FRAME_END
 	ret;
-ENDPROC(serpent_xts_dec_16way)
+SYM_FUNC_END(serpent_xts_dec_16way)
diff --git a/arch/x86/crypto/serpent-sse2-x86_64-asm_64.S b/arch/x86/crypto/serpent-sse2-x86_64-asm_64.S
index 5e0b3a3e97af..efb6dc17dc90 100644
--- a/arch/x86/crypto/serpent-sse2-x86_64-asm_64.S
+++ b/arch/x86/crypto/serpent-sse2-x86_64-asm_64.S
@@ -619,7 +619,7 @@
 	pxor t0,		x3; \
 	movdqu x3,		(3*4*4)(out);
 
-ENTRY(__serpent_enc_blk_8way)
+SYM_FUNC_START(__serpent_enc_blk_8way)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst
@@ -682,9 +682,9 @@ ENTRY(__serpent_enc_blk_8way)
 	xor_blocks(%rax, RA2, RB2, RC2, RD2, RK0, RK1, RK2);
 
 	ret;
-ENDPROC(__serpent_enc_blk_8way)
+SYM_FUNC_END(__serpent_enc_blk_8way)
 
-ENTRY(serpent_dec_blk_8way)
+SYM_FUNC_START(serpent_dec_blk_8way)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst
@@ -736,4 +736,4 @@ ENTRY(serpent_dec_blk_8way)
 	write_blocks(%rax, RC2, RD2, RB2, RE2, RK0, RK1, RK2);
 
 	ret;
-ENDPROC(serpent_dec_blk_8way)
+SYM_FUNC_END(serpent_dec_blk_8way)
diff --git a/arch/x86/crypto/sha1_avx2_x86_64_asm.S b/arch/x86/crypto/sha1_avx2_x86_64_asm.S
index 9f712a7dfd79..6decc85ef7b7 100644
--- a/arch/x86/crypto/sha1_avx2_x86_64_asm.S
+++ b/arch/x86/crypto/sha1_avx2_x86_64_asm.S
@@ -634,7 +634,7 @@ _loop3:
  * param: function's name
  */
 .macro SHA1_VECTOR_ASM  name
-	ENTRY(\name)
+	SYM_FUNC_START(\name)
 
 	push	%rbx
 	push	%r12
@@ -676,7 +676,7 @@ _loop3:
 
 	ret
 
-	ENDPROC(\name)
+	SYM_FUNC_END(\name)
 .endm
 
 .section .rodata
diff --git a/arch/x86/crypto/sha1_ni_asm.S b/arch/x86/crypto/sha1_ni_asm.S
index ebbdba72ae07..11efe3a45a1f 100644
--- a/arch/x86/crypto/sha1_ni_asm.S
+++ b/arch/x86/crypto/sha1_ni_asm.S
@@ -95,7 +95,7 @@
  */
 .text
 .align 32
-ENTRY(sha1_ni_transform)
+SYM_FUNC_START(sha1_ni_transform)
 	mov		%rsp, RSPSAVE
 	sub		$FRAME_SIZE, %rsp
 	and		$~0xF, %rsp
@@ -291,7 +291,7 @@ ENTRY(sha1_ni_transform)
 	mov		RSPSAVE, %rsp
 
 	ret
-ENDPROC(sha1_ni_transform)
+SYM_FUNC_END(sha1_ni_transform)
 
 .section	.rodata.cst16.PSHUFFLE_BYTE_FLIP_MASK, "aM", @progbits, 16
 .align 16
diff --git a/arch/x86/crypto/sha1_ssse3_asm.S b/arch/x86/crypto/sha1_ssse3_asm.S
index 99c5b8c4dc38..5d03c1173690 100644
--- a/arch/x86/crypto/sha1_ssse3_asm.S
+++ b/arch/x86/crypto/sha1_ssse3_asm.S
@@ -67,7 +67,7 @@
  * param: function's name
  */
 .macro SHA1_VECTOR_ASM  name
-	ENTRY(\name)
+	SYM_FUNC_START(\name)
 
 	push	%rbx
 	push	%r12
@@ -101,7 +101,7 @@
 	pop	%rbx
 	ret
 
-	ENDPROC(\name)
+	SYM_FUNC_END(\name)
 .endm
 
 /*
diff --git a/arch/x86/crypto/sha256-avx-asm.S b/arch/x86/crypto/sha256-avx-asm.S
index 001bbcf93c79..22e14c8dd2e4 100644
--- a/arch/x86/crypto/sha256-avx-asm.S
+++ b/arch/x86/crypto/sha256-avx-asm.S
@@ -347,7 +347,7 @@ a = TMP_
 ## arg 3 : Num blocks
 ########################################################################
 .text
-ENTRY(sha256_transform_avx)
+SYM_FUNC_START(sha256_transform_avx)
 .align 32
 	pushq   %rbx
 	pushq   %r12
@@ -460,7 +460,7 @@ done_hash:
 	popq	%r12
 	popq    %rbx
 	ret
-ENDPROC(sha256_transform_avx)
+SYM_FUNC_END(sha256_transform_avx)
 
 .section	.rodata.cst256.K256, "aM", @progbits, 256
 .align 64
diff --git a/arch/x86/crypto/sha256-avx2-asm.S b/arch/x86/crypto/sha256-avx2-asm.S
index 1420db15dcdd..519b551ad576 100644
--- a/arch/x86/crypto/sha256-avx2-asm.S
+++ b/arch/x86/crypto/sha256-avx2-asm.S
@@ -526,7 +526,7 @@ STACK_SIZE	= _RSP      + _RSP_SIZE
 ## arg 3 : Num blocks
 ########################################################################
 .text
-ENTRY(sha256_transform_rorx)
+SYM_FUNC_START(sha256_transform_rorx)
 .align 32
 	pushq	%rbx
 	pushq	%r12
@@ -713,7 +713,7 @@ done_hash:
 	popq	%r12
 	popq	%rbx
 	ret
-ENDPROC(sha256_transform_rorx)
+SYM_FUNC_END(sha256_transform_rorx)
 
 .section	.rodata.cst512.K256, "aM", @progbits, 512
 .align 64
diff --git a/arch/x86/crypto/sha256-ssse3-asm.S b/arch/x86/crypto/sha256-ssse3-asm.S
index c6c05ed2c16a..69cc2f91dc4c 100644
--- a/arch/x86/crypto/sha256-ssse3-asm.S
+++ b/arch/x86/crypto/sha256-ssse3-asm.S
@@ -353,7 +353,7 @@ a = TMP_
 ## arg 3 : Num blocks
 ########################################################################
 .text
-ENTRY(sha256_transform_ssse3)
+SYM_FUNC_START(sha256_transform_ssse3)
 .align 32
 	pushq   %rbx
 	pushq   %r12
@@ -471,7 +471,7 @@ done_hash:
 	popq    %rbx
 
 	ret
-ENDPROC(sha256_transform_ssse3)
+SYM_FUNC_END(sha256_transform_ssse3)
 
 .section	.rodata.cst256.K256, "aM", @progbits, 256
 .align 64
diff --git a/arch/x86/crypto/sha256_ni_asm.S b/arch/x86/crypto/sha256_ni_asm.S
index fb58f58ecfbc..7abade04a3a3 100644
--- a/arch/x86/crypto/sha256_ni_asm.S
+++ b/arch/x86/crypto/sha256_ni_asm.S
@@ -97,7 +97,7 @@
 
 .text
 .align 32
-ENTRY(sha256_ni_transform)
+SYM_FUNC_START(sha256_ni_transform)
 
 	shl		$6, NUM_BLKS		/*  convert to bytes */
 	jz		.Ldone_hash
@@ -327,7 +327,7 @@ ENTRY(sha256_ni_transform)
 .Ldone_hash:
 
 	ret
-ENDPROC(sha256_ni_transform)
+SYM_FUNC_END(sha256_ni_transform)
 
 .section	.rodata.cst256.K256, "aM", @progbits, 256
 .align 64
diff --git a/arch/x86/crypto/sha512-avx-asm.S b/arch/x86/crypto/sha512-avx-asm.S
index 39235fefe6f7..3704ddd7e5d5 100644
--- a/arch/x86/crypto/sha512-avx-asm.S
+++ b/arch/x86/crypto/sha512-avx-asm.S
@@ -277,7 +277,7 @@ frame_size = frame_GPRSAVE + GPRSAVE_SIZE
 # message blocks.
 # L is the message length in SHA512 blocks
 ########################################################################
-ENTRY(sha512_transform_avx)
+SYM_FUNC_START(sha512_transform_avx)
 	cmp $0, msglen
 	je nowork
 
@@ -365,7 +365,7 @@ updateblock:
 
 nowork:
 	ret
-ENDPROC(sha512_transform_avx)
+SYM_FUNC_END(sha512_transform_avx)
 
 ########################################################################
 ### Binary Data
diff --git a/arch/x86/crypto/sha512-avx2-asm.S b/arch/x86/crypto/sha512-avx2-asm.S
index b16d56005162..80d830e7ee09 100644
--- a/arch/x86/crypto/sha512-avx2-asm.S
+++ b/arch/x86/crypto/sha512-avx2-asm.S
@@ -569,7 +569,7 @@ frame_size = frame_GPRSAVE + GPRSAVE_SIZE
 #   message blocks.
 # L is the message length in SHA512 blocks
 ########################################################################
-ENTRY(sha512_transform_rorx)
+SYM_FUNC_START(sha512_transform_rorx)
 	# Allocate Stack Space
 	mov	%rsp, %rax
 	sub	$frame_size, %rsp
@@ -682,7 +682,7 @@ done_hash:
 	# Restore Stack Pointer
 	mov	frame_RSPSAVE(%rsp), %rsp
 	ret
-ENDPROC(sha512_transform_rorx)
+SYM_FUNC_END(sha512_transform_rorx)
 
 ########################################################################
 ### Binary Data
diff --git a/arch/x86/crypto/sha512-ssse3-asm.S b/arch/x86/crypto/sha512-ssse3-asm.S
index 66bbd9058a90..838f984e95d9 100644
--- a/arch/x86/crypto/sha512-ssse3-asm.S
+++ b/arch/x86/crypto/sha512-ssse3-asm.S
@@ -275,7 +275,7 @@ frame_size = frame_GPRSAVE + GPRSAVE_SIZE
 #   message blocks.
 # L is the message length in SHA512 blocks.
 ########################################################################
-ENTRY(sha512_transform_ssse3)
+SYM_FUNC_START(sha512_transform_ssse3)
 
 	cmp $0, msglen
 	je nowork
@@ -364,7 +364,7 @@ updateblock:
 
 nowork:
 	ret
-ENDPROC(sha512_transform_ssse3)
+SYM_FUNC_END(sha512_transform_ssse3)
 
 ########################################################################
 ### Binary Data
diff --git a/arch/x86/crypto/twofish-avx-x86_64-asm_64.S b/arch/x86/crypto/twofish-avx-x86_64-asm_64.S
index 588f0a2f63ab..a5151393bb2f 100644
--- a/arch/x86/crypto/twofish-avx-x86_64-asm_64.S
+++ b/arch/x86/crypto/twofish-avx-x86_64-asm_64.S
@@ -315,7 +315,7 @@ SYM_FUNC_START_LOCAL(__twofish_dec_blk8)
 	ret;
 SYM_FUNC_END(__twofish_dec_blk8)
 
-ENTRY(twofish_ecb_enc_8way)
+SYM_FUNC_START(twofish_ecb_enc_8way)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst
@@ -333,9 +333,9 @@ ENTRY(twofish_ecb_enc_8way)
 
 	FRAME_END
 	ret;
-ENDPROC(twofish_ecb_enc_8way)
+SYM_FUNC_END(twofish_ecb_enc_8way)
 
-ENTRY(twofish_ecb_dec_8way)
+SYM_FUNC_START(twofish_ecb_dec_8way)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst
@@ -353,9 +353,9 @@ ENTRY(twofish_ecb_dec_8way)
 
 	FRAME_END
 	ret;
-ENDPROC(twofish_ecb_dec_8way)
+SYM_FUNC_END(twofish_ecb_dec_8way)
 
-ENTRY(twofish_cbc_dec_8way)
+SYM_FUNC_START(twofish_cbc_dec_8way)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst
@@ -378,9 +378,9 @@ ENTRY(twofish_cbc_dec_8way)
 
 	FRAME_END
 	ret;
-ENDPROC(twofish_cbc_dec_8way)
+SYM_FUNC_END(twofish_cbc_dec_8way)
 
-ENTRY(twofish_ctr_8way)
+SYM_FUNC_START(twofish_ctr_8way)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst
@@ -405,9 +405,9 @@ ENTRY(twofish_ctr_8way)
 
 	FRAME_END
 	ret;
-ENDPROC(twofish_ctr_8way)
+SYM_FUNC_END(twofish_ctr_8way)
 
-ENTRY(twofish_xts_enc_8way)
+SYM_FUNC_START(twofish_xts_enc_8way)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst
@@ -429,9 +429,9 @@ ENTRY(twofish_xts_enc_8way)
 
 	FRAME_END
 	ret;
-ENDPROC(twofish_xts_enc_8way)
+SYM_FUNC_END(twofish_xts_enc_8way)
 
-ENTRY(twofish_xts_dec_8way)
+SYM_FUNC_START(twofish_xts_dec_8way)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst
@@ -453,4 +453,4 @@ ENTRY(twofish_xts_dec_8way)
 
 	FRAME_END
 	ret;
-ENDPROC(twofish_xts_dec_8way)
+SYM_FUNC_END(twofish_xts_dec_8way)
diff --git a/arch/x86/crypto/twofish-x86_64-asm_64-3way.S b/arch/x86/crypto/twofish-x86_64-asm_64-3way.S
index e495e07c7f1b..fc23552afe37 100644
--- a/arch/x86/crypto/twofish-x86_64-asm_64-3way.S
+++ b/arch/x86/crypto/twofish-x86_64-asm_64-3way.S
@@ -220,7 +220,7 @@
 	rorq $32,			RAB2; \
 	outunpack3(mov, RIO, 2, RAB, 2);
 
-ENTRY(__twofish_enc_blk_3way)
+SYM_FUNC_START(__twofish_enc_blk_3way)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst
@@ -267,9 +267,9 @@ ENTRY(__twofish_enc_blk_3way)
 	popq %r12;
 	popq %r13;
 	ret;
-ENDPROC(__twofish_enc_blk_3way)
+SYM_FUNC_END(__twofish_enc_blk_3way)
 
-ENTRY(twofish_dec_blk_3way)
+SYM_FUNC_START(twofish_dec_blk_3way)
 	/* input:
 	 *	%rdi: ctx, CTX
 	 *	%rsi: dst
@@ -302,4 +302,4 @@ ENTRY(twofish_dec_blk_3way)
 	popq %r12;
 	popq %r13;
 	ret;
-ENDPROC(twofish_dec_blk_3way)
+SYM_FUNC_END(twofish_dec_blk_3way)
diff --git a/arch/x86/crypto/twofish-x86_64-asm_64.S b/arch/x86/crypto/twofish-x86_64-asm_64.S
index ecef2cb9f43f..d2e56232494a 100644
--- a/arch/x86/crypto/twofish-x86_64-asm_64.S
+++ b/arch/x86/crypto/twofish-x86_64-asm_64.S
@@ -202,7 +202,7 @@
 	xor	%r8d,		d ## D;\
 	ror	$1,		d ## D;
 
-ENTRY(twofish_enc_blk)
+SYM_FUNC_START(twofish_enc_blk)
 	pushq    R1
 
 	/* %rdi contains the ctx address */
@@ -253,9 +253,9 @@ ENTRY(twofish_enc_blk)
 	popq	R1
 	movl	$1,%eax
 	ret
-ENDPROC(twofish_enc_blk)
+SYM_FUNC_END(twofish_enc_blk)
 
-ENTRY(twofish_dec_blk)
+SYM_FUNC_START(twofish_dec_blk)
 	pushq    R1
 
 	/* %rdi contains the ctx address */
@@ -305,4 +305,4 @@ ENTRY(twofish_dec_blk)
 	popq	R1
 	movl	$1,%eax
 	ret
-ENDPROC(twofish_dec_blk)
+SYM_FUNC_END(twofish_dec_blk)
diff --git a/arch/x86/entry/entry_64.S b/arch/x86/entry/entry_64.S
index 13e4fe378e5a..d58c01239457 100644
--- a/arch/x86/entry/entry_64.S
+++ b/arch/x86/entry/entry_64.S
@@ -15,7 +15,7 @@
  *			at the top of the kernel process stack.
  *
  * Some macro usage:
- * - ENTRY/END:		Define functions in the symbol table.
+ * - SYM_FUNC_START/END:Define functions in the symbol table.
  * - TRACE_IRQ_*:	Trace hardirq state for lock debugging.
  * - idtentry:		Define exception entry points.
  */
@@ -1040,7 +1040,7 @@ idtentry simd_coprocessor_error		do_simd_coprocessor_error	has_error_code=0
 	 * Reload gs selector with exception handling
 	 * edi:  new selector
 	 */
-ENTRY(native_load_gs_index)
+SYM_FUNC_START(native_load_gs_index)
 	FRAME_BEGIN
 	pushfq
 	DISABLE_INTERRUPTS(CLBR_ANY & ~CLBR_RDI)
@@ -1054,7 +1054,7 @@ ENTRY(native_load_gs_index)
 	popfq
 	FRAME_END
 	ret
-ENDPROC(native_load_gs_index)
+SYM_FUNC_END(native_load_gs_index)
 EXPORT_SYMBOL(native_load_gs_index)
 
 	_ASM_EXTABLE(.Lgs_change, .Lbad_gs)
@@ -1075,7 +1075,7 @@ SYM_CODE_END(.Lbad_gs)
 	.previous
 
 /* Call softirq on interrupt stack. Interrupts are off. */
-ENTRY(do_softirq_own_stack)
+SYM_FUNC_START(do_softirq_own_stack)
 	pushq	%rbp
 	mov	%rsp, %rbp
 	ENTER_IRQ_STACK regs=0 old_rsp=%r11
@@ -1083,7 +1083,7 @@ ENTRY(do_softirq_own_stack)
 	LEAVE_IRQ_STACK regs=0
 	leaveq
 	ret
-ENDPROC(do_softirq_own_stack)
+SYM_FUNC_END(do_softirq_own_stack)
 
 #ifdef CONFIG_XEN_PV
 idtentry hypervisor_callback xen_do_hypervisor_callback has_error_code=0
diff --git a/arch/x86/entry/entry_64_compat.S b/arch/x86/entry/entry_64_compat.S
index da296435676e..f1d3ccae5dd5 100644
--- a/arch/x86/entry/entry_64_compat.S
+++ b/arch/x86/entry/entry_64_compat.S
@@ -46,7 +46,7 @@
  * ebp  user stack
  * 0(%ebp) arg6
  */
-ENTRY(entry_SYSENTER_compat)
+SYM_FUNC_START(entry_SYSENTER_compat)
 	/* Interrupts are off on entry. */
 	SWAPGS
 
@@ -147,7 +147,7 @@ ENTRY(entry_SYSENTER_compat)
 	popfq
 	jmp	.Lsysenter_flags_fixed
 SYM_INNER_LABEL(__end_entry_SYSENTER_compat, SYM_L_GLOBAL)
-ENDPROC(entry_SYSENTER_compat)
+SYM_FUNC_END(entry_SYSENTER_compat)
 
 /*
  * 32-bit SYSCALL entry.
diff --git a/arch/x86/kernel/acpi/wakeup_64.S b/arch/x86/kernel/acpi/wakeup_64.S
index 462a20f386e0..c8daa92f38dc 100644
--- a/arch/x86/kernel/acpi/wakeup_64.S
+++ b/arch/x86/kernel/acpi/wakeup_64.S
@@ -14,7 +14,7 @@
 	/*
 	 * Hooray, we are in Long 64-bit mode (but still running in low memory)
 	 */
-ENTRY(wakeup_long64)
+SYM_FUNC_START(wakeup_long64)
 	movq	saved_magic, %rax
 	movq	$0x123456789abcdef0, %rdx
 	cmpq	%rdx, %rax
@@ -40,9 +40,9 @@ ENTRY(wakeup_long64)
 
 	movq	saved_rip, %rax
 	jmp	*%rax
-ENDPROC(wakeup_long64)
+SYM_FUNC_END(wakeup_long64)
 
-ENTRY(do_suspend_lowlevel)
+SYM_FUNC_START(do_suspend_lowlevel)
 	FRAME_BEGIN
 	subq	$8, %rsp
 	xorl	%eax, %eax
@@ -125,7 +125,7 @@ ENTRY(do_suspend_lowlevel)
 	addq	$8, %rsp
 	FRAME_END
 	jmp	restore_processor_state
-ENDPROC(do_suspend_lowlevel)
+SYM_FUNC_END(do_suspend_lowlevel)
 
 .data
 saved_rbp:		.quad	0
diff --git a/arch/x86/kernel/ftrace_64.S b/arch/x86/kernel/ftrace_64.S
index 60f894b018e0..16deae706950 100644
--- a/arch/x86/kernel/ftrace_64.S
+++ b/arch/x86/kernel/ftrace_64.S
@@ -132,11 +132,11 @@ EXPORT_SYMBOL(__fentry__)
 
 #ifdef CONFIG_DYNAMIC_FTRACE
 
-ENTRY(function_hook)
+SYM_FUNC_START(function_hook)
 	retq
-ENDPROC(function_hook)
+SYM_FUNC_END(function_hook)
 
-ENTRY(ftrace_caller)
+SYM_FUNC_START(ftrace_caller)
 	/* save_mcount_regs fills in first two parameters */
 	save_mcount_regs
 
@@ -170,9 +170,9 @@ SYM_INNER_LABEL(ftrace_graph_call, SYM_L_GLOBAL)
  */
 WEAK(ftrace_stub)
 	retq
-ENDPROC(ftrace_caller)
+SYM_FUNC_END(ftrace_caller)
 
-ENTRY(ftrace_regs_caller)
+SYM_FUNC_START(ftrace_regs_caller)
 	/* Save the current flags before any operations that can change them */
 	pushfq
 
@@ -243,12 +243,12 @@ SYM_INNER_LABEL(ftrace_regs_caller_end, SYM_L_GLOBAL)
 
 	jmp ftrace_epilogue
 
-ENDPROC(ftrace_regs_caller)
+SYM_FUNC_END(ftrace_regs_caller)
 
 
 #else /* ! CONFIG_DYNAMIC_FTRACE */
 
-ENTRY(function_hook)
+SYM_FUNC_START(function_hook)
 	cmpq $ftrace_stub, ftrace_trace_function
 	jnz trace
 
@@ -279,11 +279,11 @@ trace:
 	restore_mcount_regs
 
 	jmp fgraph_trace
-ENDPROC(function_hook)
+SYM_FUNC_END(function_hook)
 #endif /* CONFIG_DYNAMIC_FTRACE */
 
 #ifdef CONFIG_FUNCTION_GRAPH_TRACER
-ENTRY(ftrace_graph_caller)
+SYM_FUNC_START(ftrace_graph_caller)
 	/* Saves rbp into %rdx and fills first parameter  */
 	save_mcount_regs
 
@@ -294,7 +294,7 @@ ENTRY(ftrace_graph_caller)
 	restore_mcount_regs
 
 	retq
-ENDPROC(ftrace_graph_caller)
+SYM_FUNC_END(ftrace_graph_caller)
 
 SYM_CODE_START(return_to_handler)
 	UNWIND_HINT_EMPTY
diff --git a/arch/x86/kernel/irqflags.S b/arch/x86/kernel/irqflags.S
index ddeeaac8adda..0db0375235b4 100644
--- a/arch/x86/kernel/irqflags.S
+++ b/arch/x86/kernel/irqflags.S
@@ -7,20 +7,20 @@
 /*
  * unsigned long native_save_fl(void)
  */
-ENTRY(native_save_fl)
+SYM_FUNC_START(native_save_fl)
 	pushf
 	pop %_ASM_AX
 	ret
-ENDPROC(native_save_fl)
+SYM_FUNC_END(native_save_fl)
 EXPORT_SYMBOL(native_save_fl)
 
 /*
  * void native_restore_fl(unsigned long flags)
  * %eax/%rdi: flags
  */
-ENTRY(native_restore_fl)
+SYM_FUNC_START(native_restore_fl)
 	push %_ASM_ARG1
 	popf
 	ret
-ENDPROC(native_restore_fl)
+SYM_FUNC_END(native_restore_fl)
 EXPORT_SYMBOL(native_restore_fl)
diff --git a/arch/x86/kvm/vmx/vmenter.S b/arch/x86/kvm/vmx/vmenter.S
index 751a384c2eb0..81ada2ce99e7 100644
--- a/arch/x86/kvm/vmx/vmenter.S
+++ b/arch/x86/kvm/vmx/vmenter.S
@@ -43,7 +43,7 @@
  * they VM-Fail, whereas a successful VM-Enter + VM-Exit will jump
  * to vmx_vmexit.
  */
-ENTRY(vmx_vmenter)
+SYM_FUNC_START(vmx_vmenter)
 	/* EFLAGS.ZF is set if VMCS.LAUNCHED == 0 */
 	je 2f
 
@@ -65,7 +65,7 @@ ENTRY(vmx_vmenter)
 	_ASM_EXTABLE(1b, 5b)
 	_ASM_EXTABLE(2b, 5b)
 
-ENDPROC(vmx_vmenter)
+SYM_FUNC_END(vmx_vmenter)
 
 /**
  * vmx_vmexit - Handle a VMX VM-Exit
@@ -77,7 +77,7 @@ ENDPROC(vmx_vmenter)
  * here after hardware loads the host's state, i.e. this is the destination
  * referred to by VMCS.HOST_RIP.
  */
-ENTRY(vmx_vmexit)
+SYM_FUNC_START(vmx_vmexit)
 #ifdef CONFIG_RETPOLINE
 	ALTERNATIVE "jmp .Lvmexit_skip_rsb", "", X86_FEATURE_RETPOLINE
 	/* Preserve guest's RAX, it's used to stuff the RSB. */
@@ -90,7 +90,7 @@ ENTRY(vmx_vmexit)
 .Lvmexit_skip_rsb:
 #endif
 	ret
-ENDPROC(vmx_vmexit)
+SYM_FUNC_END(vmx_vmexit)
 
 /**
  * __vmx_vcpu_run - Run a vCPU via a transition to VMX guest mode
@@ -101,7 +101,7 @@ ENDPROC(vmx_vmexit)
  * Returns:
  *	0 on VM-Exit, 1 on VM-Fail
  */
-ENTRY(__vmx_vcpu_run)
+SYM_FUNC_START(__vmx_vcpu_run)
 	push %_ASM_BP
 	mov  %_ASM_SP, %_ASM_BP
 #ifdef CONFIG_X86_64
@@ -233,4 +233,4 @@ ENTRY(__vmx_vcpu_run)
 	/* VM-Fail.  Out-of-line to avoid a taken Jcc after VM-Exit. */
 2:	mov $1, %eax
 	jmp 1b
-ENDPROC(__vmx_vcpu_run)
+SYM_FUNC_END(__vmx_vcpu_run)
diff --git a/arch/x86/lib/checksum_32.S b/arch/x86/lib/checksum_32.S
index 4df90c9ea383..74256bd193da 100644
--- a/arch/x86/lib/checksum_32.S
+++ b/arch/x86/lib/checksum_32.S
@@ -280,7 +280,7 @@ unsigned int csum_partial_copy_generic (const char *src, char *dst,
 #define ARGBASE 16		
 #define FP		12
 		
-ENTRY(csum_partial_copy_generic)
+SYM_FUNC_START(csum_partial_copy_generic)
 	subl  $4,%esp	
 	pushl %edi
 	pushl %esi
@@ -398,7 +398,7 @@ DST(	movb %cl, (%edi)	)
 	popl %edi
 	popl %ecx			# equivalent to addl $4,%esp
 	ret	
-ENDPROC(csum_partial_copy_generic)
+SYM_FUNC_END(csum_partial_copy_generic)
 
 #else
 
@@ -416,7 +416,7 @@ ENDPROC(csum_partial_copy_generic)
 
 #define ARGBASE 12
 		
-ENTRY(csum_partial_copy_generic)
+SYM_FUNC_START(csum_partial_copy_generic)
 	pushl %ebx
 	pushl %edi
 	pushl %esi
@@ -483,7 +483,7 @@ DST(	movb %dl, (%edi)         )
 	popl %edi
 	popl %ebx
 	ret
-ENDPROC(csum_partial_copy_generic)
+SYM_FUNC_END(csum_partial_copy_generic)
 				
 #undef ROUND
 #undef ROUND1		
diff --git a/arch/x86/lib/clear_page_64.S b/arch/x86/lib/clear_page_64.S
index 75a5a4515fa7..c4c7dd115953 100644
--- a/arch/x86/lib/clear_page_64.S
+++ b/arch/x86/lib/clear_page_64.S
@@ -13,15 +13,15 @@
  * Zero a page.
  * %rdi	- page
  */
-ENTRY(clear_page_rep)
+SYM_FUNC_START(clear_page_rep)
 	movl $4096/8,%ecx
 	xorl %eax,%eax
 	rep stosq
 	ret
-ENDPROC(clear_page_rep)
+SYM_FUNC_END(clear_page_rep)
 EXPORT_SYMBOL_GPL(clear_page_rep)
 
-ENTRY(clear_page_orig)
+SYM_FUNC_START(clear_page_orig)
 	xorl   %eax,%eax
 	movl   $4096/64,%ecx
 	.p2align 4
@@ -40,13 +40,13 @@ ENTRY(clear_page_orig)
 	jnz	.Lloop
 	nop
 	ret
-ENDPROC(clear_page_orig)
+SYM_FUNC_END(clear_page_orig)
 EXPORT_SYMBOL_GPL(clear_page_orig)
 
-ENTRY(clear_page_erms)
+SYM_FUNC_START(clear_page_erms)
 	movl $4096,%ecx
 	xorl %eax,%eax
 	rep stosb
 	ret
-ENDPROC(clear_page_erms)
+SYM_FUNC_END(clear_page_erms)
 EXPORT_SYMBOL_GPL(clear_page_erms)
diff --git a/arch/x86/lib/cmpxchg16b_emu.S b/arch/x86/lib/cmpxchg16b_emu.S
index d63185698a23..3542502faa3b 100644
--- a/arch/x86/lib/cmpxchg16b_emu.S
+++ b/arch/x86/lib/cmpxchg16b_emu.S
@@ -13,7 +13,7 @@
  * %rcx : high 64 bits of new value
  * %al  : Operation successful
  */
-ENTRY(this_cpu_cmpxchg16b_emu)
+SYM_FUNC_START(this_cpu_cmpxchg16b_emu)
 
 #
 # Emulate 'cmpxchg16b %gs:(%rsi)' except we return the result in %al not
@@ -44,4 +44,4 @@ ENTRY(this_cpu_cmpxchg16b_emu)
 	xor %al,%al
 	ret
 
-ENDPROC(this_cpu_cmpxchg16b_emu)
+SYM_FUNC_END(this_cpu_cmpxchg16b_emu)
diff --git a/arch/x86/lib/cmpxchg8b_emu.S b/arch/x86/lib/cmpxchg8b_emu.S
index 691d80e97488..ca01ed6029f4 100644
--- a/arch/x86/lib/cmpxchg8b_emu.S
+++ b/arch/x86/lib/cmpxchg8b_emu.S
@@ -13,7 +13,7 @@
  * %ebx : low 32 bits of new value
  * %ecx : high 32 bits of new value
  */
-ENTRY(cmpxchg8b_emu)
+SYM_FUNC_START(cmpxchg8b_emu)
 
 #
 # Emulate 'cmpxchg8b (%esi)' on UP except we don't
@@ -42,5 +42,5 @@ ENTRY(cmpxchg8b_emu)
 	popfl
 	ret
 
-ENDPROC(cmpxchg8b_emu)
+SYM_FUNC_END(cmpxchg8b_emu)
 EXPORT_SYMBOL(cmpxchg8b_emu)
diff --git a/arch/x86/lib/copy_page_64.S b/arch/x86/lib/copy_page_64.S
index f505870bd93b..2402d4c489d2 100644
--- a/arch/x86/lib/copy_page_64.S
+++ b/arch/x86/lib/copy_page_64.S
@@ -13,12 +13,12 @@
  * prefetch distance based on SMP/UP.
  */
 	ALIGN
-ENTRY(copy_page)
+SYM_FUNC_START(copy_page)
 	ALTERNATIVE "jmp copy_page_regs", "", X86_FEATURE_REP_GOOD
 	movl	$4096/8, %ecx
 	rep	movsq
 	ret
-ENDPROC(copy_page)
+SYM_FUNC_END(copy_page)
 EXPORT_SYMBOL(copy_page)
 
 SYM_FUNC_START_LOCAL(copy_page_regs)
diff --git a/arch/x86/lib/copy_user_64.S b/arch/x86/lib/copy_user_64.S
index 4a12b3c120bf..816f128a6d52 100644
--- a/arch/x86/lib/copy_user_64.S
+++ b/arch/x86/lib/copy_user_64.S
@@ -53,7 +53,7 @@
  * Output:
  * eax uncopied bytes or 0 if successful.
  */
-ENTRY(copy_user_generic_unrolled)
+SYM_FUNC_START(copy_user_generic_unrolled)
 	ASM_STAC
 	cmpl $8,%edx
 	jb 20f		/* less then 8 bytes, go to byte copy loop */
@@ -136,7 +136,7 @@ ENTRY(copy_user_generic_unrolled)
 	_ASM_EXTABLE_UA(19b, 40b)
 	_ASM_EXTABLE_UA(21b, 50b)
 	_ASM_EXTABLE_UA(22b, 50b)
-ENDPROC(copy_user_generic_unrolled)
+SYM_FUNC_END(copy_user_generic_unrolled)
 EXPORT_SYMBOL(copy_user_generic_unrolled)
 
 /* Some CPUs run faster using the string copy instructions.
@@ -157,7 +157,7 @@ EXPORT_SYMBOL(copy_user_generic_unrolled)
  * Output:
  * eax uncopied bytes or 0 if successful.
  */
-ENTRY(copy_user_generic_string)
+SYM_FUNC_START(copy_user_generic_string)
 	ASM_STAC
 	cmpl $8,%edx
 	jb 2f		/* less than 8 bytes, go to byte copy loop */
@@ -182,7 +182,7 @@ ENTRY(copy_user_generic_string)
 
 	_ASM_EXTABLE_UA(1b, 11b)
 	_ASM_EXTABLE_UA(3b, 12b)
-ENDPROC(copy_user_generic_string)
+SYM_FUNC_END(copy_user_generic_string)
 EXPORT_SYMBOL(copy_user_generic_string)
 
 /*
@@ -197,7 +197,7 @@ EXPORT_SYMBOL(copy_user_generic_string)
  * Output:
  * eax uncopied bytes or 0 if successful.
  */
-ENTRY(copy_user_enhanced_fast_string)
+SYM_FUNC_START(copy_user_enhanced_fast_string)
 	ASM_STAC
 	cmpl $64,%edx
 	jb .L_copy_short_string	/* less then 64 bytes, avoid the costly 'rep' */
@@ -214,7 +214,7 @@ ENTRY(copy_user_enhanced_fast_string)
 	.previous
 
 	_ASM_EXTABLE_UA(1b, 12b)
-ENDPROC(copy_user_enhanced_fast_string)
+SYM_FUNC_END(copy_user_enhanced_fast_string)
 EXPORT_SYMBOL(copy_user_enhanced_fast_string)
 
 /*
@@ -249,7 +249,7 @@ SYM_CODE_END(.Lcopy_user_handle_tail)
  *  - Require 8-byte alignment when size is 8 bytes or larger.
  *  - Require 4-byte alignment when size is 4 bytes.
  */
-ENTRY(__copy_user_nocache)
+SYM_FUNC_START(__copy_user_nocache)
 	ASM_STAC
 
 	/* If size is less than 8 bytes, go to 4-byte copy */
@@ -388,5 +388,5 @@ ENTRY(__copy_user_nocache)
 	_ASM_EXTABLE_UA(31b, .L_fixup_4b_copy)
 	_ASM_EXTABLE_UA(40b, .L_fixup_1b_copy)
 	_ASM_EXTABLE_UA(41b, .L_fixup_1b_copy)
-ENDPROC(__copy_user_nocache)
+SYM_FUNC_END(__copy_user_nocache)
 EXPORT_SYMBOL(__copy_user_nocache)
diff --git a/arch/x86/lib/csum-copy_64.S b/arch/x86/lib/csum-copy_64.S
index a4a379e79259..3394a8ff7fd0 100644
--- a/arch/x86/lib/csum-copy_64.S
+++ b/arch/x86/lib/csum-copy_64.S
@@ -49,7 +49,7 @@
 	.endm
 
 
-ENTRY(csum_partial_copy_generic)
+SYM_FUNC_START(csum_partial_copy_generic)
 	cmpl	$3*64, %edx
 	jle	.Lignore
 
@@ -225,4 +225,4 @@ ENTRY(csum_partial_copy_generic)
 	jz   .Lende
 	movl $-EFAULT, (%rax)
 	jmp .Lende
-ENDPROC(csum_partial_copy_generic)
+SYM_FUNC_END(csum_partial_copy_generic)
diff --git a/arch/x86/lib/getuser.S b/arch/x86/lib/getuser.S
index f9f59eb85635..c8a85b512796 100644
--- a/arch/x86/lib/getuser.S
+++ b/arch/x86/lib/getuser.S
@@ -36,7 +36,7 @@
 #include <asm/export.h>
 
 	.text
-ENTRY(__get_user_1)
+SYM_FUNC_START(__get_user_1)
 	mov PER_CPU_VAR(current_task), %_ASM_DX
 	cmp TASK_addr_limit(%_ASM_DX),%_ASM_AX
 	jae bad_get_user
@@ -47,10 +47,10 @@ ENTRY(__get_user_1)
 	xor %eax,%eax
 	ASM_CLAC
 	ret
-ENDPROC(__get_user_1)
+SYM_FUNC_END(__get_user_1)
 EXPORT_SYMBOL(__get_user_1)
 
-ENTRY(__get_user_2)
+SYM_FUNC_START(__get_user_2)
 	add $1,%_ASM_AX
 	jc bad_get_user
 	mov PER_CPU_VAR(current_task), %_ASM_DX
@@ -63,10 +63,10 @@ ENTRY(__get_user_2)
 	xor %eax,%eax
 	ASM_CLAC
 	ret
-ENDPROC(__get_user_2)
+SYM_FUNC_END(__get_user_2)
 EXPORT_SYMBOL(__get_user_2)
 
-ENTRY(__get_user_4)
+SYM_FUNC_START(__get_user_4)
 	add $3,%_ASM_AX
 	jc bad_get_user
 	mov PER_CPU_VAR(current_task), %_ASM_DX
@@ -79,10 +79,10 @@ ENTRY(__get_user_4)
 	xor %eax,%eax
 	ASM_CLAC
 	ret
-ENDPROC(__get_user_4)
+SYM_FUNC_END(__get_user_4)
 EXPORT_SYMBOL(__get_user_4)
 
-ENTRY(__get_user_8)
+SYM_FUNC_START(__get_user_8)
 #ifdef CONFIG_X86_64
 	add $7,%_ASM_AX
 	jc bad_get_user
@@ -111,7 +111,7 @@ ENTRY(__get_user_8)
 	ASM_CLAC
 	ret
 #endif
-ENDPROC(__get_user_8)
+SYM_FUNC_END(__get_user_8)
 EXPORT_SYMBOL(__get_user_8)
 
 
diff --git a/arch/x86/lib/hweight.S b/arch/x86/lib/hweight.S
index a14f9939c365..dbf8cc97b7f5 100644
--- a/arch/x86/lib/hweight.S
+++ b/arch/x86/lib/hweight.S
@@ -8,7 +8,7 @@
  * unsigned int __sw_hweight32(unsigned int w)
  * %rdi: w
  */
-ENTRY(__sw_hweight32)
+SYM_FUNC_START(__sw_hweight32)
 
 #ifdef CONFIG_X86_64
 	movl %edi, %eax				# w
@@ -33,10 +33,10 @@ ENTRY(__sw_hweight32)
 	shrl $24, %eax				# w = w_tmp >> 24
 	__ASM_SIZE(pop,) %__ASM_REG(dx)
 	ret
-ENDPROC(__sw_hweight32)
+SYM_FUNC_END(__sw_hweight32)
 EXPORT_SYMBOL(__sw_hweight32)
 
-ENTRY(__sw_hweight64)
+SYM_FUNC_START(__sw_hweight64)
 #ifdef CONFIG_X86_64
 	pushq   %rdi
 	pushq   %rdx
@@ -79,5 +79,5 @@ ENTRY(__sw_hweight64)
 	popl    %ecx
 	ret
 #endif
-ENDPROC(__sw_hweight64)
+SYM_FUNC_END(__sw_hweight64)
 EXPORT_SYMBOL(__sw_hweight64)
diff --git a/arch/x86/lib/iomap_copy_64.S b/arch/x86/lib/iomap_copy_64.S
index a9bdf0805be0..cb5a1964506b 100644
--- a/arch/x86/lib/iomap_copy_64.S
+++ b/arch/x86/lib/iomap_copy_64.S
@@ -8,8 +8,8 @@
 /*
  * override generic version in lib/iomap_copy.c
  */
-ENTRY(__iowrite32_copy)
+SYM_FUNC_START(__iowrite32_copy)
 	movl %edx,%ecx
 	rep movsd
 	ret
-ENDPROC(__iowrite32_copy)
+SYM_FUNC_END(__iowrite32_copy)
diff --git a/arch/x86/lib/memcpy_64.S b/arch/x86/lib/memcpy_64.S
index 3265b21e86c0..56b243b14c3a 100644
--- a/arch/x86/lib/memcpy_64.S
+++ b/arch/x86/lib/memcpy_64.S
@@ -193,7 +193,7 @@ MCSAFE_TEST_CTL
  * Note that we only catch machine checks when reading the source addresses.
  * Writes to target are posted and don't generate machine checks.
  */
-ENTRY(__memcpy_mcsafe)
+SYM_FUNC_START(__memcpy_mcsafe)
 	cmpl $8, %edx
 	/* Less than 8 bytes? Go to byte copy loop */
 	jb .L_no_whole_words
@@ -260,7 +260,7 @@ ENTRY(__memcpy_mcsafe)
 	xorl %eax, %eax
 .L_done:
 	ret
-ENDPROC(__memcpy_mcsafe)
+SYM_FUNC_END(__memcpy_mcsafe)
 EXPORT_SYMBOL_GPL(__memcpy_mcsafe)
 
 	.section .fixup, "ax"
diff --git a/arch/x86/lib/memmove_64.S b/arch/x86/lib/memmove_64.S
index 50c1648311b3..337830d7a59c 100644
--- a/arch/x86/lib/memmove_64.S
+++ b/arch/x86/lib/memmove_64.S
@@ -27,7 +27,7 @@
 .weak memmove
 
 SYM_FUNC_START_ALIAS(memmove)
-ENTRY(__memmove)
+SYM_FUNC_START(__memmove)
 
 	/* Handle more 32 bytes in loop */
 	mov %rdi, %rax
@@ -207,7 +207,7 @@ ENTRY(__memmove)
 	movb %r11b, (%rdi)
 13:
 	retq
-ENDPROC(__memmove)
+SYM_FUNC_END(__memmove)
 SYM_FUNC_END_ALIAS(memmove)
 EXPORT_SYMBOL(__memmove)
 EXPORT_SYMBOL(memmove)
diff --git a/arch/x86/lib/memset_64.S b/arch/x86/lib/memset_64.S
index 564abf9ecedb..9ff15ee404a4 100644
--- a/arch/x86/lib/memset_64.S
+++ b/arch/x86/lib/memset_64.S
@@ -20,7 +20,7 @@
  * rax   original destination
  */
 SYM_FUNC_START_ALIAS(memset)
-ENTRY(__memset)
+SYM_FUNC_START(__memset)
 	/*
 	 * Some CPUs support enhanced REP MOVSB/STOSB feature. It is recommended
 	 * to use it when possible. If not available, use fast string instructions.
@@ -43,7 +43,7 @@ ENTRY(__memset)
 	rep stosb
 	movq %r9,%rax
 	ret
-ENDPROC(__memset)
+SYM_FUNC_END(__memset)
 SYM_FUNC_END_ALIAS(memset)
 EXPORT_SYMBOL(memset)
 EXPORT_SYMBOL(__memset)
diff --git a/arch/x86/lib/msr-reg.S b/arch/x86/lib/msr-reg.S
index ed33cbab3958..a2b9caa5274c 100644
--- a/arch/x86/lib/msr-reg.S
+++ b/arch/x86/lib/msr-reg.S
@@ -12,7 +12,7 @@
  *
  */
 .macro op_safe_regs op
-ENTRY(\op\()_safe_regs)
+SYM_FUNC_START(\op\()_safe_regs)
 	pushq %rbx
 	pushq %r12
 	movq	%rdi, %r10	/* Save pointer */
@@ -41,13 +41,13 @@ ENTRY(\op\()_safe_regs)
 	jmp     2b
 
 	_ASM_EXTABLE(1b, 3b)
-ENDPROC(\op\()_safe_regs)
+SYM_FUNC_END(\op\()_safe_regs)
 .endm
 
 #else /* X86_32 */
 
 .macro op_safe_regs op
-ENTRY(\op\()_safe_regs)
+SYM_FUNC_START(\op\()_safe_regs)
 	pushl %ebx
 	pushl %ebp
 	pushl %esi
@@ -83,7 +83,7 @@ ENTRY(\op\()_safe_regs)
 	jmp     2b
 
 	_ASM_EXTABLE(1b, 3b)
-ENDPROC(\op\()_safe_regs)
+SYM_FUNC_END(\op\()_safe_regs)
 .endm
 
 #endif
diff --git a/arch/x86/lib/putuser.S b/arch/x86/lib/putuser.S
index a9391d772c81..7c7c92db8497 100644
--- a/arch/x86/lib/putuser.S
+++ b/arch/x86/lib/putuser.S
@@ -34,7 +34,7 @@
 #define ENTER	mov PER_CPU_VAR(current_task), %_ASM_BX
 
 .text
-ENTRY(__put_user_1)
+SYM_FUNC_START(__put_user_1)
 	ENTER
 	cmp TASK_addr_limit(%_ASM_BX),%_ASM_CX
 	jae .Lbad_put_user
@@ -43,10 +43,10 @@ ENTRY(__put_user_1)
 	xor %eax,%eax
 	ASM_CLAC
 	ret
-ENDPROC(__put_user_1)
+SYM_FUNC_END(__put_user_1)
 EXPORT_SYMBOL(__put_user_1)
 
-ENTRY(__put_user_2)
+SYM_FUNC_START(__put_user_2)
 	ENTER
 	mov TASK_addr_limit(%_ASM_BX),%_ASM_BX
 	sub $1,%_ASM_BX
@@ -57,10 +57,10 @@ ENTRY(__put_user_2)
 	xor %eax,%eax
 	ASM_CLAC
 	ret
-ENDPROC(__put_user_2)
+SYM_FUNC_END(__put_user_2)
 EXPORT_SYMBOL(__put_user_2)
 
-ENTRY(__put_user_4)
+SYM_FUNC_START(__put_user_4)
 	ENTER
 	mov TASK_addr_limit(%_ASM_BX),%_ASM_BX
 	sub $3,%_ASM_BX
@@ -71,10 +71,10 @@ ENTRY(__put_user_4)
 	xor %eax,%eax
 	ASM_CLAC
 	ret
-ENDPROC(__put_user_4)
+SYM_FUNC_END(__put_user_4)
 EXPORT_SYMBOL(__put_user_4)
 
-ENTRY(__put_user_8)
+SYM_FUNC_START(__put_user_8)
 	ENTER
 	mov TASK_addr_limit(%_ASM_BX),%_ASM_BX
 	sub $7,%_ASM_BX
@@ -88,7 +88,7 @@ ENTRY(__put_user_8)
 	xor %eax,%eax
 	ASM_CLAC
 	RET
-ENDPROC(__put_user_8)
+SYM_FUNC_END(__put_user_8)
 EXPORT_SYMBOL(__put_user_8)
 
 SYM_CODE_START_LOCAL(.Lbad_put_user_clac)
diff --git a/arch/x86/lib/retpoline.S b/arch/x86/lib/retpoline.S
index c909961e678a..363ec132df7e 100644
--- a/arch/x86/lib/retpoline.S
+++ b/arch/x86/lib/retpoline.S
@@ -11,11 +11,11 @@
 .macro THUNK reg
 	.section .text.__x86.indirect_thunk
 
-ENTRY(__x86_indirect_thunk_\reg)
+SYM_FUNC_START(__x86_indirect_thunk_\reg)
 	CFI_STARTPROC
 	JMP_NOSPEC %\reg
 	CFI_ENDPROC
-ENDPROC(__x86_indirect_thunk_\reg)
+SYM_FUNC_END(__x86_indirect_thunk_\reg)
 .endm
 
 /*
diff --git a/arch/x86/mm/mem_encrypt_boot.S b/arch/x86/mm/mem_encrypt_boot.S
index 6d71481a1e70..106ead05bbe3 100644
--- a/arch/x86/mm/mem_encrypt_boot.S
+++ b/arch/x86/mm/mem_encrypt_boot.S
@@ -16,7 +16,7 @@
 
 	.text
 	.code64
-ENTRY(sme_encrypt_execute)
+SYM_FUNC_START(sme_encrypt_execute)
 
 	/*
 	 * Entry parameters:
@@ -66,9 +66,9 @@ ENTRY(sme_encrypt_execute)
 	pop	%rbp
 
 	ret
-ENDPROC(sme_encrypt_execute)
+SYM_FUNC_END(sme_encrypt_execute)
 
-ENTRY(__enc_copy)
+SYM_FUNC_START(__enc_copy)
 /*
  * Routine used to encrypt memory in place.
  *   This routine must be run outside of the kernel proper since
@@ -153,4 +153,4 @@ ENTRY(__enc_copy)
 
 	ret
 .L__enc_copy_end:
-ENDPROC(__enc_copy)
+SYM_FUNC_END(__enc_copy)
diff --git a/arch/x86/platform/efi/efi_stub_64.S b/arch/x86/platform/efi/efi_stub_64.S
index 74628ec78f29..b1d2313fe3bf 100644
--- a/arch/x86/platform/efi/efi_stub_64.S
+++ b/arch/x86/platform/efi/efi_stub_64.S
@@ -39,7 +39,7 @@
 	mov %rsi, %cr0;			\
 	mov (%rsp), %rsp
 
-ENTRY(efi_call)
+SYM_FUNC_START(efi_call)
 	pushq %rbp
 	movq %rsp, %rbp
 	SAVE_XMM
@@ -55,4 +55,4 @@ ENTRY(efi_call)
 	RESTORE_XMM
 	popq %rbp
 	ret
-ENDPROC(efi_call)
+SYM_FUNC_END(efi_call)
diff --git a/arch/x86/platform/efi/efi_thunk_64.S b/arch/x86/platform/efi/efi_thunk_64.S
index d677a7eb2d0a..3189f1394701 100644
--- a/arch/x86/platform/efi/efi_thunk_64.S
+++ b/arch/x86/platform/efi/efi_thunk_64.S
@@ -25,7 +25,7 @@
 
 	.text
 	.code64
-ENTRY(efi64_thunk)
+SYM_FUNC_START(efi64_thunk)
 	push	%rbp
 	push	%rbx
 
@@ -60,7 +60,7 @@ ENTRY(efi64_thunk)
 	pop	%rbx
 	pop	%rbp
 	retq
-ENDPROC(efi64_thunk)
+SYM_FUNC_END(efi64_thunk)
 
 /*
  * We run this function from the 1:1 mapping.
diff --git a/arch/x86/power/hibernate_asm_64.S b/arch/x86/power/hibernate_asm_64.S
index 4057cd5af7e2..7918b8415f13 100644
--- a/arch/x86/power/hibernate_asm_64.S
+++ b/arch/x86/power/hibernate_asm_64.S
@@ -22,7 +22,7 @@
 #include <asm/processor-flags.h>
 #include <asm/frame.h>
 
-ENTRY(swsusp_arch_suspend)
+SYM_FUNC_START(swsusp_arch_suspend)
 	movq	$saved_context, %rax
 	movq	%rsp, pt_regs_sp(%rax)
 	movq	%rbp, pt_regs_bp(%rax)
@@ -50,7 +50,7 @@ ENTRY(swsusp_arch_suspend)
 	call swsusp_save
 	FRAME_END
 	ret
-ENDPROC(swsusp_arch_suspend)
+SYM_FUNC_END(swsusp_arch_suspend)
 
 SYM_CODE_START(restore_image)
 	/* prepare to jump to the image kernel */
@@ -102,7 +102,7 @@ SYM_CODE_END(core_restore_code)
 
 	 /* code below belongs to the image kernel */
 	.align PAGE_SIZE
-ENTRY(restore_registers)
+SYM_FUNC_START(restore_registers)
 	/* go back to the original page tables */
 	movq    %r9, %cr3
 
@@ -144,4 +144,4 @@ ENTRY(restore_registers)
 	movq	%rax, in_suspend(%rip)
 
 	ret
-ENDPROC(restore_registers)
+SYM_FUNC_END(restore_registers)
diff --git a/arch/x86/xen/xen-asm.S b/arch/x86/xen/xen-asm.S
index be104eef80be..508fe204520b 100644
--- a/arch/x86/xen/xen-asm.S
+++ b/arch/x86/xen/xen-asm.S
@@ -19,7 +19,7 @@
  * event status with one and operation.  If there are pending events,
  * then enter the hypervisor to get them handled.
  */
-ENTRY(xen_irq_enable_direct)
+SYM_FUNC_START(xen_irq_enable_direct)
 	FRAME_BEGIN
 	/* Unmask events */
 	movb $0, PER_CPU_VAR(xen_vcpu_info) + XEN_vcpu_info_mask
@@ -38,17 +38,17 @@ ENTRY(xen_irq_enable_direct)
 1:
 	FRAME_END
 	ret
-	ENDPROC(xen_irq_enable_direct)
+SYM_FUNC_END(xen_irq_enable_direct)
 
 
 /*
  * Disabling events is simply a matter of making the event mask
  * non-zero.
  */
-ENTRY(xen_irq_disable_direct)
+SYM_FUNC_START(xen_irq_disable_direct)
 	movb $1, PER_CPU_VAR(xen_vcpu_info) + XEN_vcpu_info_mask
 	ret
-ENDPROC(xen_irq_disable_direct)
+SYM_FUNC_END(xen_irq_disable_direct)
 
 /*
  * (xen_)save_fl is used to get the current interrupt enable status.
@@ -59,12 +59,12 @@ ENDPROC(xen_irq_disable_direct)
  * undefined.  We need to toggle the state of the bit, because Xen and
  * x86 use opposite senses (mask vs enable).
  */
-ENTRY(xen_save_fl_direct)
+SYM_FUNC_START(xen_save_fl_direct)
 	testb $0xff, PER_CPU_VAR(xen_vcpu_info) + XEN_vcpu_info_mask
 	setz %ah
 	addb %ah, %ah
 	ret
-	ENDPROC(xen_save_fl_direct)
+SYM_FUNC_END(xen_save_fl_direct)
 
 
 /*
@@ -74,7 +74,7 @@ ENTRY(xen_save_fl_direct)
  * interrupt mask state, it checks for unmasked pending events and
  * enters the hypervisor to get them delivered if so.
  */
-ENTRY(xen_restore_fl_direct)
+SYM_FUNC_START(xen_restore_fl_direct)
 	FRAME_BEGIN
 #ifdef CONFIG_X86_64
 	testw $X86_EFLAGS_IF, %di
@@ -95,14 +95,14 @@ ENTRY(xen_restore_fl_direct)
 1:
 	FRAME_END
 	ret
-	ENDPROC(xen_restore_fl_direct)
+SYM_FUNC_END(xen_restore_fl_direct)
 
 
 /*
  * Force an event check by making a hypercall, but preserve regs
  * before making the call.
  */
-ENTRY(check_events)
+SYM_FUNC_START(check_events)
 	FRAME_BEGIN
 #ifdef CONFIG_X86_32
 	push %eax
@@ -135,19 +135,19 @@ ENTRY(check_events)
 #endif
 	FRAME_END
 	ret
-ENDPROC(check_events)
+SYM_FUNC_END(check_events)
 
-ENTRY(xen_read_cr2)
+SYM_FUNC_START(xen_read_cr2)
 	FRAME_BEGIN
 	_ASM_MOV PER_CPU_VAR(xen_vcpu), %_ASM_AX
 	_ASM_MOV XEN_vcpu_info_arch_cr2(%_ASM_AX), %_ASM_AX
 	FRAME_END
 	ret
-	ENDPROC(xen_read_cr2);
+SYM_FUNC_END(xen_read_cr2);
 
-ENTRY(xen_read_cr2_direct)
+SYM_FUNC_START(xen_read_cr2_direct)
 	FRAME_BEGIN
 	_ASM_MOV PER_CPU_VAR(xen_vcpu_info) + XEN_vcpu_info_arch_cr2, %_ASM_AX
 	FRAME_END
 	ret
-	ENDPROC(xen_read_cr2_direct);
+SYM_FUNC_END(xen_read_cr2_direct);
diff --git a/arch/x86/xen/xen-asm_64.S b/arch/x86/xen/xen-asm_64.S
index 0060120f51dd..0a0fd168683a 100644
--- a/arch/x86/xen/xen-asm_64.S
+++ b/arch/x86/xen/xen-asm_64.S
@@ -126,7 +126,7 @@ SYM_CODE_END(xen_sysret64)
  */
 
 /* Normal 64-bit system call target */
-ENTRY(xen_syscall_target)
+SYM_FUNC_START(xen_syscall_target)
 	popq %rcx
 	popq %r11
 
@@ -139,12 +139,12 @@ ENTRY(xen_syscall_target)
 	movq $__USER_CS, 1*8(%rsp)
 
 	jmp entry_SYSCALL_64_after_hwframe
-ENDPROC(xen_syscall_target)
+SYM_FUNC_END(xen_syscall_target)
 
 #ifdef CONFIG_IA32_EMULATION
 
 /* 32-bit compat syscall target */
-ENTRY(xen_syscall32_target)
+SYM_FUNC_START(xen_syscall32_target)
 	popq %rcx
 	popq %r11
 
@@ -157,25 +157,25 @@ ENTRY(xen_syscall32_target)
 	movq $__USER32_CS, 1*8(%rsp)
 
 	jmp entry_SYSCALL_compat_after_hwframe
-ENDPROC(xen_syscall32_target)
+SYM_FUNC_END(xen_syscall32_target)
 
 /* 32-bit compat sysenter target */
-ENTRY(xen_sysenter_target)
+SYM_FUNC_START(xen_sysenter_target)
 	mov 0*8(%rsp), %rcx
 	mov 1*8(%rsp), %r11
 	mov 5*8(%rsp), %rsp
 	jmp entry_SYSENTER_compat
-ENDPROC(xen_sysenter_target)
+SYM_FUNC_END(xen_sysenter_target)
 
 #else /* !CONFIG_IA32_EMULATION */
 
 SYM_FUNC_START_ALIAS(xen_syscall32_target)
-ENTRY(xen_sysenter_target)
+SYM_FUNC_START(xen_sysenter_target)
 	lea 16(%rsp), %rsp	/* strip %rcx, %r11 */
 	mov $-ENOSYS, %rax
 	pushq $0
 	jmp hypercall_iret
-ENDPROC(xen_sysenter_target)
+SYM_FUNC_END(xen_sysenter_target)
 SYM_FUNC_END_ALIAS(xen_syscall32_target)
 
 #endif	/* CONFIG_IA32_EMULATION */
diff --git a/include/linux/linkage.h b/include/linux/linkage.h
index cb1108dde385..19f3d796ab5b 100644
--- a/include/linux/linkage.h
+++ b/include/linux/linkage.h
@@ -114,11 +114,13 @@
 #endif
 #endif
 
+#ifndef CONFIG_X86_64
 #ifndef ENTRY
 /* deprecated, use SYM_FUNC_START */
 #define ENTRY(name) \
 	SYM_FUNC_START(name)
 #endif
+#endif /* CONFIG_X86_64 */
 #endif /* LINKER_SCRIPT */
 
 #ifndef WEAK
@@ -133,6 +135,7 @@
 	.size name, .-name
 #endif
 
+#ifndef CONFIG_X86_64
 /* If symbol 'name' is treated as a subroutine (gets called, and returns)
  * then please use ENDPROC to mark 'name' as STT_FUNC for the benefit of
  * static analysis tools such as stack depth analyzer.
@@ -142,6 +145,7 @@
 #define ENDPROC(name) \
 	SYM_FUNC_END(name)
 #endif
+#endif /* CONFIG_X86_64 */
 
 /* === generic annotations === */
 
-- 
2.23.0


_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xenproject.org
https://lists.xenproject.org/mailman/listinfo/xen-devel

^ permalink raw reply related	[flat|nested] 110+ messages in thread

* [PATCH v9 25/28] x86_32/asm: Add ENDs to some functions and relabel with SYM_CODE_*
  2019-10-11 11:50 [PATCH v9 00/28] New macros for assembler symbols Jiri Slaby
@ 2019-10-11 11:51   ` Jiri Slaby
  2019-10-11 11:50 ` [PATCH v9 02/28] x86/asm/suspend: Use SYM_DATA for data Jiri Slaby
                     ` (26 subsequent siblings)
  27 siblings, 0 replies; 110+ messages in thread
From: Jiri Slaby @ 2019-10-11 11:51 UTC (permalink / raw)
  To: bp
  Cc: tglx, mingo, hpa, x86, linux-arch, linux-kernel, Jiri Slaby,
	Boris Ostrovsky, Rafael J . Wysocki, Rafael J. Wysocki,
	Len Brown, Pavel Machek, Juergen Gross, linux-pm, xen-devel

All these are functions which are invoked from elsewhere, but they are
not typical C functions. So they are annotated using the new
SYM_CODE_START. All these were not balanced with any END, so mark their
ends by SYM_CODE_END, appropriately.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> [xen bits]
Reviewed-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> [hibernate]
Cc: Borislav Petkov <bp@alien8.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: x86@kernel.org
Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>
Cc: Len Brown <len.brown@intel.com>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: Juergen Gross <jgross@suse.com>
Cc: linux-pm@vger.kernel.org
Cc: xen-devel@lists.xenproject.org
---
 arch/x86/entry/entry_32.S            | 3 ++-
 arch/x86/kernel/acpi/wakeup_32.S     | 7 ++++---
 arch/x86/kernel/ftrace_32.S          | 3 ++-
 arch/x86/kernel/head_32.S            | 3 ++-
 arch/x86/power/hibernate_asm_32.S    | 6 ++++--
 arch/x86/realmode/rm/trampoline_32.S | 6 ++++--
 arch/x86/xen/xen-asm_32.S            | 7 ++++---
 7 files changed, 22 insertions(+), 13 deletions(-)

diff --git a/arch/x86/entry/entry_32.S b/arch/x86/entry/entry_32.S
index 4900a6a5e125..64fe7aa50ad2 100644
--- a/arch/x86/entry/entry_32.S
+++ b/arch/x86/entry/entry_32.S
@@ -847,9 +847,10 @@ SYM_ENTRY(__begin_SYSENTER_singlestep_region, SYM_L_GLOBAL, SYM_A_NONE)
  * Xen doesn't set %esp to be precisely what the normal SYSENTER
  * entry point expects, so fix it up before using the normal path.
  */
-ENTRY(xen_sysenter_target)
+SYM_CODE_START(xen_sysenter_target)
 	addl	$5*4, %esp			/* remove xen-provided frame */
 	jmp	.Lsysenter_past_esp
+SYM_CODE_END(xen_sysenter_target)
 #endif
 
 /*
diff --git a/arch/x86/kernel/acpi/wakeup_32.S b/arch/x86/kernel/acpi/wakeup_32.S
index 427249292aef..daf88f8143c5 100644
--- a/arch/x86/kernel/acpi/wakeup_32.S
+++ b/arch/x86/kernel/acpi/wakeup_32.S
@@ -9,8 +9,7 @@
 	.code32
 	ALIGN
 
-ENTRY(wakeup_pmode_return)
-wakeup_pmode_return:
+SYM_CODE_START(wakeup_pmode_return)
 	movw	$__KERNEL_DS, %ax
 	movw	%ax, %ss
 	movw	%ax, %fs
@@ -39,6 +38,7 @@ wakeup_pmode_return:
 	# jump to place where we left off
 	movl	saved_eip, %eax
 	jmp	*%eax
+SYM_CODE_END(wakeup_pmode_return)
 
 bogus_magic:
 	jmp	bogus_magic
@@ -72,7 +72,7 @@ restore_registers:
 	popfl
 	ret
 
-ENTRY(do_suspend_lowlevel)
+SYM_CODE_START(do_suspend_lowlevel)
 	call	save_processor_state
 	call	save_registers
 	pushl	$3
@@ -87,6 +87,7 @@ ret_point:
 	call	restore_registers
 	call	restore_processor_state
 	ret
+SYM_CODE_END(do_suspend_lowlevel)
 
 .data
 ALIGN
diff --git a/arch/x86/kernel/ftrace_32.S b/arch/x86/kernel/ftrace_32.S
index 219be1309c37..a43ed4c0402d 100644
--- a/arch/x86/kernel/ftrace_32.S
+++ b/arch/x86/kernel/ftrace_32.S
@@ -89,7 +89,7 @@ WEAK(ftrace_stub)
 	ret
 END(ftrace_caller)
 
-ENTRY(ftrace_regs_caller)
+SYM_CODE_START(ftrace_regs_caller)
 	/*
 	 * We're here from an mcount/fentry CALL, and the stack frame looks like:
 	 *
@@ -163,6 +163,7 @@ SYM_INNER_LABEL(ftrace_regs_call, SYM_L_GLOBAL)
 	popl	%eax
 
 	jmp	.Lftrace_ret
+SYM_CODE_END(ftrace_regs_caller)
 
 #ifdef CONFIG_FUNCTION_GRAPH_TRACER
 ENTRY(ftrace_graph_caller)
diff --git a/arch/x86/kernel/head_32.S b/arch/x86/kernel/head_32.S
index e2b3e6cf86ca..7029bbaccc41 100644
--- a/arch/x86/kernel/head_32.S
+++ b/arch/x86/kernel/head_32.S
@@ -64,7 +64,7 @@ RESERVE_BRK(pagetables, INIT_MAP_SIZE)
  * can.
  */
 __HEAD
-ENTRY(startup_32)
+SYM_CODE_START(startup_32)
 	movl pa(initial_stack),%ecx
 	
 	/* test KEEP_SEGMENTS flag to see if the bootloader is asking
@@ -172,6 +172,7 @@ num_subarch_entries = (. - subarch_entries) / 4
 #else
 	jmp .Ldefault_entry
 #endif /* CONFIG_PARAVIRT */
+SYM_CODE_END(startup_32)
 
 #ifdef CONFIG_HOTPLUG_CPU
 /*
diff --git a/arch/x86/power/hibernate_asm_32.S b/arch/x86/power/hibernate_asm_32.S
index 6fe383002125..a19ed3d23185 100644
--- a/arch/x86/power/hibernate_asm_32.S
+++ b/arch/x86/power/hibernate_asm_32.S
@@ -35,7 +35,7 @@ ENTRY(swsusp_arch_suspend)
 	ret
 ENDPROC(swsusp_arch_suspend)
 
-ENTRY(restore_image)
+SYM_CODE_START(restore_image)
 	/* prepare to jump to the image kernel */
 	movl	restore_jump_address, %ebx
 	movl	restore_cr3, %ebp
@@ -45,9 +45,10 @@ ENTRY(restore_image)
 	/* jump to relocated restore code */
 	movl	relocated_restore_code, %eax
 	jmpl	*%eax
+SYM_CODE_END(restore_image)
 
 /* code below has been relocated to a safe page */
-ENTRY(core_restore_code)
+SYM_CODE_START(core_restore_code)
 	movl	temp_pgt, %eax
 	movl	%eax, %cr3
 
@@ -77,6 +78,7 @@ copy_loop:
 
 done:
 	jmpl	*%ebx
+SYM_CODE_END(core_restore_code)
 
 	/* code below belongs to the image kernel */
 	.align PAGE_SIZE
diff --git a/arch/x86/realmode/rm/trampoline_32.S b/arch/x86/realmode/rm/trampoline_32.S
index ff00594a2ed0..3fad907a179f 100644
--- a/arch/x86/realmode/rm/trampoline_32.S
+++ b/arch/x86/realmode/rm/trampoline_32.S
@@ -29,7 +29,7 @@
 	.code16
 
 	.balign	PAGE_SIZE
-ENTRY(trampoline_start)
+SYM_CODE_START(trampoline_start)
 	wbinvd			# Needed for NUMA-Q should be harmless for others
 
 	LJMPW_RM(1f)
@@ -54,11 +54,13 @@ ENTRY(trampoline_start)
 	lmsw	%dx			# into protected mode
 
 	ljmpl	$__BOOT_CS, $pa_startup_32
+SYM_CODE_END(trampoline_start)
 
 	.section ".text32","ax"
 	.code32
-ENTRY(startup_32)			# note: also used from wakeup_asm.S
+SYM_CODE_START(startup_32)			# note: also used from wakeup_asm.S
 	jmp	*%eax
+SYM_CODE_END(startup_32)
 
 	.bss
 	.balign 8
diff --git a/arch/x86/xen/xen-asm_32.S b/arch/x86/xen/xen-asm_32.S
index c15db060a242..8b8f8355b938 100644
--- a/arch/x86/xen/xen-asm_32.S
+++ b/arch/x86/xen/xen-asm_32.S
@@ -56,7 +56,7 @@
 	_ASM_EXTABLE(1b,2b)
 .endm
 
-ENTRY(xen_iret)
+SYM_CODE_START(xen_iret)
 	/* test eflags for special cases */
 	testl $(X86_EFLAGS_VM | XEN_EFLAGS_NMI), 8(%esp)
 	jnz hyper_iret
@@ -122,6 +122,7 @@ xen_iret_end_crit:
 hyper_iret:
 	/* put this out of line since its very rarely used */
 	jmp hypercall_page + __HYPERVISOR_iret * 32
+SYM_CODE_END(xen_iret)
 
 	.globl xen_iret_start_crit, xen_iret_end_crit
 
@@ -165,7 +166,7 @@ hyper_iret:
  * SAVE_ALL state before going on, since it's usermode state which we
  * eventually need to restore.
  */
-ENTRY(xen_iret_crit_fixup)
+SYM_CODE_START(xen_iret_crit_fixup)
 	/*
 	 * Paranoia: Make sure we're really coming from kernel space.
 	 * One could imagine a case where userspace jumps into the
@@ -204,4 +205,4 @@ ENTRY(xen_iret_crit_fixup)
 
 	lea 4(%edi), %esp		/* point esp to new frame */
 2:	jmp xen_do_upcall
-
+SYM_CODE_END(xen_iret_crit_fixup)
-- 
2.23.0


^ permalink raw reply related	[flat|nested] 110+ messages in thread

* [Xen-devel] [PATCH v9 25/28] x86_32/asm: Add ENDs to some functions and relabel with SYM_CODE_*
@ 2019-10-11 11:51   ` Jiri Slaby
  0 siblings, 0 replies; 110+ messages in thread
From: Jiri Slaby @ 2019-10-11 11:51 UTC (permalink / raw)
  To: bp
  Cc: linux-arch, Len Brown, Rafael J . Wysocki, Juergen Gross,
	linux-pm, x86, Rafael J. Wysocki, linux-kernel, mingo,
	Pavel Machek, hpa, xen-devel, tglx, Jiri Slaby, Boris Ostrovsky

All these are functions which are invoked from elsewhere, but they are
not typical C functions. So they are annotated using the new
SYM_CODE_START. All these were not balanced with any END, so mark their
ends by SYM_CODE_END, appropriately.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> [xen bits]
Reviewed-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> [hibernate]
Cc: Borislav Petkov <bp@alien8.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: x86@kernel.org
Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>
Cc: Len Brown <len.brown@intel.com>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: Juergen Gross <jgross@suse.com>
Cc: linux-pm@vger.kernel.org
Cc: xen-devel@lists.xenproject.org
---
 arch/x86/entry/entry_32.S            | 3 ++-
 arch/x86/kernel/acpi/wakeup_32.S     | 7 ++++---
 arch/x86/kernel/ftrace_32.S          | 3 ++-
 arch/x86/kernel/head_32.S            | 3 ++-
 arch/x86/power/hibernate_asm_32.S    | 6 ++++--
 arch/x86/realmode/rm/trampoline_32.S | 6 ++++--
 arch/x86/xen/xen-asm_32.S            | 7 ++++---
 7 files changed, 22 insertions(+), 13 deletions(-)

diff --git a/arch/x86/entry/entry_32.S b/arch/x86/entry/entry_32.S
index 4900a6a5e125..64fe7aa50ad2 100644
--- a/arch/x86/entry/entry_32.S
+++ b/arch/x86/entry/entry_32.S
@@ -847,9 +847,10 @@ SYM_ENTRY(__begin_SYSENTER_singlestep_region, SYM_L_GLOBAL, SYM_A_NONE)
  * Xen doesn't set %esp to be precisely what the normal SYSENTER
  * entry point expects, so fix it up before using the normal path.
  */
-ENTRY(xen_sysenter_target)
+SYM_CODE_START(xen_sysenter_target)
 	addl	$5*4, %esp			/* remove xen-provided frame */
 	jmp	.Lsysenter_past_esp
+SYM_CODE_END(xen_sysenter_target)
 #endif
 
 /*
diff --git a/arch/x86/kernel/acpi/wakeup_32.S b/arch/x86/kernel/acpi/wakeup_32.S
index 427249292aef..daf88f8143c5 100644
--- a/arch/x86/kernel/acpi/wakeup_32.S
+++ b/arch/x86/kernel/acpi/wakeup_32.S
@@ -9,8 +9,7 @@
 	.code32
 	ALIGN
 
-ENTRY(wakeup_pmode_return)
-wakeup_pmode_return:
+SYM_CODE_START(wakeup_pmode_return)
 	movw	$__KERNEL_DS, %ax
 	movw	%ax, %ss
 	movw	%ax, %fs
@@ -39,6 +38,7 @@ wakeup_pmode_return:
 	# jump to place where we left off
 	movl	saved_eip, %eax
 	jmp	*%eax
+SYM_CODE_END(wakeup_pmode_return)
 
 bogus_magic:
 	jmp	bogus_magic
@@ -72,7 +72,7 @@ restore_registers:
 	popfl
 	ret
 
-ENTRY(do_suspend_lowlevel)
+SYM_CODE_START(do_suspend_lowlevel)
 	call	save_processor_state
 	call	save_registers
 	pushl	$3
@@ -87,6 +87,7 @@ ret_point:
 	call	restore_registers
 	call	restore_processor_state
 	ret
+SYM_CODE_END(do_suspend_lowlevel)
 
 .data
 ALIGN
diff --git a/arch/x86/kernel/ftrace_32.S b/arch/x86/kernel/ftrace_32.S
index 219be1309c37..a43ed4c0402d 100644
--- a/arch/x86/kernel/ftrace_32.S
+++ b/arch/x86/kernel/ftrace_32.S
@@ -89,7 +89,7 @@ WEAK(ftrace_stub)
 	ret
 END(ftrace_caller)
 
-ENTRY(ftrace_regs_caller)
+SYM_CODE_START(ftrace_regs_caller)
 	/*
 	 * We're here from an mcount/fentry CALL, and the stack frame looks like:
 	 *
@@ -163,6 +163,7 @@ SYM_INNER_LABEL(ftrace_regs_call, SYM_L_GLOBAL)
 	popl	%eax
 
 	jmp	.Lftrace_ret
+SYM_CODE_END(ftrace_regs_caller)
 
 #ifdef CONFIG_FUNCTION_GRAPH_TRACER
 ENTRY(ftrace_graph_caller)
diff --git a/arch/x86/kernel/head_32.S b/arch/x86/kernel/head_32.S
index e2b3e6cf86ca..7029bbaccc41 100644
--- a/arch/x86/kernel/head_32.S
+++ b/arch/x86/kernel/head_32.S
@@ -64,7 +64,7 @@ RESERVE_BRK(pagetables, INIT_MAP_SIZE)
  * can.
  */
 __HEAD
-ENTRY(startup_32)
+SYM_CODE_START(startup_32)
 	movl pa(initial_stack),%ecx
 	
 	/* test KEEP_SEGMENTS flag to see if the bootloader is asking
@@ -172,6 +172,7 @@ num_subarch_entries = (. - subarch_entries) / 4
 #else
 	jmp .Ldefault_entry
 #endif /* CONFIG_PARAVIRT */
+SYM_CODE_END(startup_32)
 
 #ifdef CONFIG_HOTPLUG_CPU
 /*
diff --git a/arch/x86/power/hibernate_asm_32.S b/arch/x86/power/hibernate_asm_32.S
index 6fe383002125..a19ed3d23185 100644
--- a/arch/x86/power/hibernate_asm_32.S
+++ b/arch/x86/power/hibernate_asm_32.S
@@ -35,7 +35,7 @@ ENTRY(swsusp_arch_suspend)
 	ret
 ENDPROC(swsusp_arch_suspend)
 
-ENTRY(restore_image)
+SYM_CODE_START(restore_image)
 	/* prepare to jump to the image kernel */
 	movl	restore_jump_address, %ebx
 	movl	restore_cr3, %ebp
@@ -45,9 +45,10 @@ ENTRY(restore_image)
 	/* jump to relocated restore code */
 	movl	relocated_restore_code, %eax
 	jmpl	*%eax
+SYM_CODE_END(restore_image)
 
 /* code below has been relocated to a safe page */
-ENTRY(core_restore_code)
+SYM_CODE_START(core_restore_code)
 	movl	temp_pgt, %eax
 	movl	%eax, %cr3
 
@@ -77,6 +78,7 @@ copy_loop:
 
 done:
 	jmpl	*%ebx
+SYM_CODE_END(core_restore_code)
 
 	/* code below belongs to the image kernel */
 	.align PAGE_SIZE
diff --git a/arch/x86/realmode/rm/trampoline_32.S b/arch/x86/realmode/rm/trampoline_32.S
index ff00594a2ed0..3fad907a179f 100644
--- a/arch/x86/realmode/rm/trampoline_32.S
+++ b/arch/x86/realmode/rm/trampoline_32.S
@@ -29,7 +29,7 @@
 	.code16
 
 	.balign	PAGE_SIZE
-ENTRY(trampoline_start)
+SYM_CODE_START(trampoline_start)
 	wbinvd			# Needed for NUMA-Q should be harmless for others
 
 	LJMPW_RM(1f)
@@ -54,11 +54,13 @@ ENTRY(trampoline_start)
 	lmsw	%dx			# into protected mode
 
 	ljmpl	$__BOOT_CS, $pa_startup_32
+SYM_CODE_END(trampoline_start)
 
 	.section ".text32","ax"
 	.code32
-ENTRY(startup_32)			# note: also used from wakeup_asm.S
+SYM_CODE_START(startup_32)			# note: also used from wakeup_asm.S
 	jmp	*%eax
+SYM_CODE_END(startup_32)
 
 	.bss
 	.balign 8
diff --git a/arch/x86/xen/xen-asm_32.S b/arch/x86/xen/xen-asm_32.S
index c15db060a242..8b8f8355b938 100644
--- a/arch/x86/xen/xen-asm_32.S
+++ b/arch/x86/xen/xen-asm_32.S
@@ -56,7 +56,7 @@
 	_ASM_EXTABLE(1b,2b)
 .endm
 
-ENTRY(xen_iret)
+SYM_CODE_START(xen_iret)
 	/* test eflags for special cases */
 	testl $(X86_EFLAGS_VM | XEN_EFLAGS_NMI), 8(%esp)
 	jnz hyper_iret
@@ -122,6 +122,7 @@ xen_iret_end_crit:
 hyper_iret:
 	/* put this out of line since its very rarely used */
 	jmp hypercall_page + __HYPERVISOR_iret * 32
+SYM_CODE_END(xen_iret)
 
 	.globl xen_iret_start_crit, xen_iret_end_crit
 
@@ -165,7 +166,7 @@ hyper_iret:
  * SAVE_ALL state before going on, since it's usermode state which we
  * eventually need to restore.
  */
-ENTRY(xen_iret_crit_fixup)
+SYM_CODE_START(xen_iret_crit_fixup)
 	/*
 	 * Paranoia: Make sure we're really coming from kernel space.
 	 * One could imagine a case where userspace jumps into the
@@ -204,4 +205,4 @@ ENTRY(xen_iret_crit_fixup)
 
 	lea 4(%edi), %esp		/* point esp to new frame */
 2:	jmp xen_do_upcall
-
+SYM_CODE_END(xen_iret_crit_fixup)
-- 
2.23.0


_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xenproject.org
https://lists.xenproject.org/mailman/listinfo/xen-devel

^ permalink raw reply related	[flat|nested] 110+ messages in thread

* [PATCH v9 26/28] x86_32/asm: Change all ENTRY+END to SYM_CODE_*
  2019-10-11 11:50 [PATCH v9 00/28] New macros for assembler symbols Jiri Slaby
                   ` (24 preceding siblings ...)
  2019-10-11 11:51   ` [Xen-devel] " Jiri Slaby
@ 2019-10-11 11:51 ` Jiri Slaby
  2019-10-18 16:30   ` [tip: x86/asm] x86/asm/32: " tip-bot2 for Jiri Slaby
  2019-10-11 11:51 ` [PATCH v9 27/28] x86_32/asm: Change all ENTRY+ENDPROC to SYM_FUNC_* Jiri Slaby
  2019-10-11 11:51 ` [PATCH v9 28/28] x86/asm: Replace WEAK uses by SYM_INNER_LABEL_ALIGN Jiri Slaby
  27 siblings, 1 reply; 110+ messages in thread
From: Jiri Slaby @ 2019-10-11 11:51 UTC (permalink / raw)
  To: bp; +Cc: tglx, mingo, hpa, x86, linux-arch, linux-kernel, Jiri Slaby

Here, all assembly code which is marked using END (and not ENDPROC) is
changed. All these are changed to appropriate new markings
SYM_CODE_START and SYM_CODE_END.

And since the last user of END on X86 was removed, make sure, that END
is not defined there.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: x86@kernel.org
---
 arch/x86/entry/entry_32.S   | 104 ++++++++++++++++++------------------
 arch/x86/kernel/ftrace_32.S |   8 +--
 include/linux/linkage.h     |   2 +
 3 files changed, 58 insertions(+), 56 deletions(-)

diff --git a/arch/x86/entry/entry_32.S b/arch/x86/entry/entry_32.S
index 64fe7aa50ad2..0ecc12fcfc05 100644
--- a/arch/x86/entry/entry_32.S
+++ b/arch/x86/entry/entry_32.S
@@ -709,7 +709,7 @@
  * %eax: prev task
  * %edx: next task
  */
-ENTRY(__switch_to_asm)
+SYM_CODE_START(__switch_to_asm)
 	/*
 	 * Save callee-saved registers
 	 * This must match the order in struct inactive_task_frame
@@ -748,7 +748,7 @@ ENTRY(__switch_to_asm)
 	popl	%ebp
 
 	jmp	__switch_to
-END(__switch_to_asm)
+SYM_CODE_END(__switch_to_asm)
 
 /*
  * The unwinder expects the last frame on the stack to always be at the same
@@ -774,7 +774,7 @@ ENDPROC(schedule_tail_wrapper)
  * ebx: kernel thread func (NULL for user thread)
  * edi: kernel thread arg
  */
-ENTRY(ret_from_fork)
+SYM_CODE_START(ret_from_fork)
 	call	schedule_tail_wrapper
 
 	testl	%ebx, %ebx
@@ -797,7 +797,7 @@ ENTRY(ret_from_fork)
 	 */
 	movl	$0, PT_EAX(%esp)
 	jmp	2b
-END(ret_from_fork)
+SYM_CODE_END(ret_from_fork)
 
 /*
  * Return to user mode is not as complex as all this looks,
@@ -1161,7 +1161,7 @@ ENDPROC(entry_INT80_32)
  * We pack 1 stub into every 8-byte block.
  */
 	.align 8
-ENTRY(irq_entries_start)
+SYM_CODE_START(irq_entries_start)
     vector=FIRST_EXTERNAL_VECTOR
     .rept (FIRST_SYSTEM_VECTOR - FIRST_EXTERNAL_VECTOR)
 	pushl	$(~vector+0x80)			/* Note: always in signed byte range */
@@ -1169,11 +1169,11 @@ ENTRY(irq_entries_start)
 	jmp	common_interrupt
 	.align	8
     .endr
-END(irq_entries_start)
+SYM_CODE_END(irq_entries_start)
 
 #ifdef CONFIG_X86_LOCAL_APIC
 	.align 8
-ENTRY(spurious_entries_start)
+SYM_CODE_START(spurious_entries_start)
     vector=FIRST_SYSTEM_VECTOR
     .rept (NR_VECTORS - FIRST_SYSTEM_VECTOR)
 	pushl	$(~vector+0x80)			/* Note: always in signed byte range */
@@ -1181,7 +1181,7 @@ ENTRY(spurious_entries_start)
 	jmp	common_spurious
 	.align	8
     .endr
-END(spurious_entries_start)
+SYM_CODE_END(spurious_entries_start)
 
 SYM_CODE_START_LOCAL(common_spurious)
 	ASM_CLAC
@@ -1230,14 +1230,14 @@ ENDPROC(name)
 /* The include is where all of the SMP etc. interrupts come from */
 #include <asm/entry_arch.h>
 
-ENTRY(coprocessor_error)
+SYM_CODE_START(coprocessor_error)
 	ASM_CLAC
 	pushl	$0
 	pushl	$do_coprocessor_error
 	jmp	common_exception
-END(coprocessor_error)
+SYM_CODE_END(coprocessor_error)
 
-ENTRY(simd_coprocessor_error)
+SYM_CODE_START(simd_coprocessor_error)
 	ASM_CLAC
 	pushl	$0
 #ifdef CONFIG_X86_INVD_BUG
@@ -1249,96 +1249,96 @@ ENTRY(simd_coprocessor_error)
 	pushl	$do_simd_coprocessor_error
 #endif
 	jmp	common_exception
-END(simd_coprocessor_error)
+SYM_CODE_END(simd_coprocessor_error)
 
-ENTRY(device_not_available)
+SYM_CODE_START(device_not_available)
 	ASM_CLAC
 	pushl	$-1				# mark this as an int
 	pushl	$do_device_not_available
 	jmp	common_exception
-END(device_not_available)
+SYM_CODE_END(device_not_available)
 
 #ifdef CONFIG_PARAVIRT
-ENTRY(native_iret)
+SYM_CODE_START(native_iret)
 	iret
 	_ASM_EXTABLE(native_iret, iret_exc)
-END(native_iret)
+SYM_CODE_END(native_iret)
 #endif
 
-ENTRY(overflow)
+SYM_CODE_START(overflow)
 	ASM_CLAC
 	pushl	$0
 	pushl	$do_overflow
 	jmp	common_exception
-END(overflow)
+SYM_CODE_END(overflow)
 
-ENTRY(bounds)
+SYM_CODE_START(bounds)
 	ASM_CLAC
 	pushl	$0
 	pushl	$do_bounds
 	jmp	common_exception
-END(bounds)
+SYM_CODE_END(bounds)
 
-ENTRY(invalid_op)
+SYM_CODE_START(invalid_op)
 	ASM_CLAC
 	pushl	$0
 	pushl	$do_invalid_op
 	jmp	common_exception
-END(invalid_op)
+SYM_CODE_END(invalid_op)
 
-ENTRY(coprocessor_segment_overrun)
+SYM_CODE_START(coprocessor_segment_overrun)
 	ASM_CLAC
 	pushl	$0
 	pushl	$do_coprocessor_segment_overrun
 	jmp	common_exception
-END(coprocessor_segment_overrun)
+SYM_CODE_END(coprocessor_segment_overrun)
 
-ENTRY(invalid_TSS)
+SYM_CODE_START(invalid_TSS)
 	ASM_CLAC
 	pushl	$do_invalid_TSS
 	jmp	common_exception
-END(invalid_TSS)
+SYM_CODE_END(invalid_TSS)
 
-ENTRY(segment_not_present)
+SYM_CODE_START(segment_not_present)
 	ASM_CLAC
 	pushl	$do_segment_not_present
 	jmp	common_exception
-END(segment_not_present)
+SYM_CODE_END(segment_not_present)
 
-ENTRY(stack_segment)
+SYM_CODE_START(stack_segment)
 	ASM_CLAC
 	pushl	$do_stack_segment
 	jmp	common_exception
-END(stack_segment)
+SYM_CODE_END(stack_segment)
 
-ENTRY(alignment_check)
+SYM_CODE_START(alignment_check)
 	ASM_CLAC
 	pushl	$do_alignment_check
 	jmp	common_exception
-END(alignment_check)
+SYM_CODE_END(alignment_check)
 
-ENTRY(divide_error)
+SYM_CODE_START(divide_error)
 	ASM_CLAC
 	pushl	$0				# no error code
 	pushl	$do_divide_error
 	jmp	common_exception
-END(divide_error)
+SYM_CODE_END(divide_error)
 
 #ifdef CONFIG_X86_MCE
-ENTRY(machine_check)
+SYM_CODE_START(machine_check)
 	ASM_CLAC
 	pushl	$0
 	pushl	machine_check_vector
 	jmp	common_exception
-END(machine_check)
+SYM_CODE_END(machine_check)
 #endif
 
-ENTRY(spurious_interrupt_bug)
+SYM_CODE_START(spurious_interrupt_bug)
 	ASM_CLAC
 	pushl	$0
 	pushl	$do_spurious_interrupt_bug
 	jmp	common_exception
-END(spurious_interrupt_bug)
+SYM_CODE_END(spurious_interrupt_bug)
 
 #ifdef CONFIG_XEN_PV
 ENTRY(xen_hypervisor_callback)
@@ -1442,11 +1442,11 @@ BUILD_INTERRUPT3(hv_stimer0_callback_vector, HYPERV_STIMER0_VECTOR,
 
 #endif /* CONFIG_HYPERV */
 
-ENTRY(page_fault)
+SYM_CODE_START(page_fault)
 	ASM_CLAC
 	pushl	$do_page_fault
 	jmp	common_exception_read_cr2
-END(page_fault)
+SYM_CODE_END(page_fault)
 
 SYM_CODE_START_LOCAL_NOALIGN(common_exception_read_cr2)
 	/* the function address is in %gs's slot on the stack */
@@ -1495,7 +1495,7 @@ SYM_CODE_START_LOCAL_NOALIGN(common_exception)
 	jmp	ret_from_exception
 SYM_CODE_END(common_exception)
 
-ENTRY(debug)
+SYM_CODE_START(debug)
 	/*
 	 * Entry from sysenter is now handled in common_exception
 	 */
@@ -1503,7 +1503,7 @@ ENTRY(debug)
 	pushl	$-1				# mark this as an int
 	pushl	$do_debug
 	jmp	common_exception
-END(debug)
+SYM_CODE_END(debug)
 
 /*
  * NMI is doubly nasty.  It can happen on the first instruction of
@@ -1512,7 +1512,7 @@ END(debug)
  * switched stacks.  We handle both conditions by simply checking whether we
  * interrupted kernel code running on the SYSENTER stack.
  */
-ENTRY(nmi)
+SYM_CODE_START(nmi)
 	ASM_CLAC
 
 #ifdef CONFIG_X86_ESPFIX32
@@ -1577,9 +1577,9 @@ ENTRY(nmi)
 	lss	12+4(%esp), %esp		# back to espfix stack
 	jmp	.Lirq_return
 #endif
-END(nmi)
+SYM_CODE_END(nmi)
 
-ENTRY(int3)
+SYM_CODE_START(int3)
 	ASM_CLAC
 	pushl	$-1				# mark this as an int
 
@@ -1590,22 +1590,22 @@ ENTRY(int3)
 	movl	%esp, %eax			# pt_regs pointer
 	call	do_int3
 	jmp	ret_from_exception
-END(int3)
+SYM_CODE_END(int3)
 
-ENTRY(general_protection)
+SYM_CODE_START(general_protection)
 	pushl	$do_general_protection
 	jmp	common_exception
-END(general_protection)
+SYM_CODE_END(general_protection)
 
 #ifdef CONFIG_KVM_GUEST
-ENTRY(async_page_fault)
+SYM_CODE_START(async_page_fault)
 	ASM_CLAC
 	pushl	$do_async_page_fault
 	jmp	common_exception_read_cr2
-END(async_page_fault)
+SYM_CODE_END(async_page_fault)
 #endif
 
-ENTRY(rewind_stack_do_exit)
+SYM_CODE_START(rewind_stack_do_exit)
 	/* Prevent any naive code from trying to unwind to our caller. */
 	xorl	%ebp, %ebp
 
@@ -1614,4 +1614,4 @@ ENTRY(rewind_stack_do_exit)
 
 	call	do_exit
 1:	jmp 1b
-END(rewind_stack_do_exit)
+SYM_CODE_END(rewind_stack_do_exit)
diff --git a/arch/x86/kernel/ftrace_32.S b/arch/x86/kernel/ftrace_32.S
index a43ed4c0402d..b4f495bbd5a1 100644
--- a/arch/x86/kernel/ftrace_32.S
+++ b/arch/x86/kernel/ftrace_32.S
@@ -25,7 +25,7 @@ SYM_FUNC_START(function_hook)
 	ret
 SYM_FUNC_END(function_hook)
 
-ENTRY(ftrace_caller)
+SYM_CODE_START(ftrace_caller)
 
 #ifdef CONFIG_FRAME_POINTER
 	/*
@@ -87,7 +87,7 @@ ftrace_graph_call:
 /* This is weak to keep gas from relaxing the jumps */
 WEAK(ftrace_stub)
 	ret
-END(ftrace_caller)
+SYM_CODE_END(ftrace_caller)
 
 SYM_CODE_START(ftrace_regs_caller)
 	/*
@@ -166,7 +166,7 @@ SYM_INNER_LABEL(ftrace_regs_call, SYM_L_GLOBAL)
 SYM_CODE_END(ftrace_regs_caller)
 
 #ifdef CONFIG_FUNCTION_GRAPH_TRACER
-ENTRY(ftrace_graph_caller)
+SYM_CODE_START(ftrace_graph_caller)
 	pushl	%eax
 	pushl	%ecx
 	pushl	%edx
@@ -180,7 +180,7 @@ ENTRY(ftrace_graph_caller)
 	popl	%ecx
 	popl	%eax
 	ret
-END(ftrace_graph_caller)
+SYM_CODE_END(ftrace_graph_caller)
 
 .globl return_to_handler
 return_to_handler:
diff --git a/include/linux/linkage.h b/include/linux/linkage.h
index 19f3d796ab5b..5ffcf72c8f87 100644
--- a/include/linux/linkage.h
+++ b/include/linux/linkage.h
@@ -129,11 +129,13 @@
 	SYM_FUNC_START_WEAK(name)
 #endif
 
+#ifndef CONFIG_X86
 #ifndef END
 /* deprecated, use SYM_FUNC_END, SYM_DATA_END, or SYM_END */
 #define END(name) \
 	.size name, .-name
 #endif
+#endif /* CONFIG_X86 */
 
 #ifndef CONFIG_X86_64
 /* If symbol 'name' is treated as a subroutine (gets called, and returns)
-- 
2.23.0


^ permalink raw reply related	[flat|nested] 110+ messages in thread

* [PATCH v9 27/28] x86_32/asm: Change all ENTRY+ENDPROC to SYM_FUNC_*
  2019-10-11 11:50 [PATCH v9 00/28] New macros for assembler symbols Jiri Slaby
                   ` (25 preceding siblings ...)
  2019-10-11 11:51 ` [PATCH v9 26/28] x86_32/asm: Change all ENTRY+END to SYM_CODE_* Jiri Slaby
@ 2019-10-11 11:51 ` Jiri Slaby
  2019-10-18 16:30     ` tip-bot2 for Jiri Slaby
  2019-10-11 11:51 ` [PATCH v9 28/28] x86/asm: Replace WEAK uses by SYM_INNER_LABEL_ALIGN Jiri Slaby
  27 siblings, 1 reply; 110+ messages in thread
From: Jiri Slaby @ 2019-10-11 11:51 UTC (permalink / raw)
  To: bp
  Cc: tglx, mingo, hpa, x86, linux-arch, linux-kernel, Jiri Slaby,
	Herbert Xu, David S. Miller, Bill Metzenthen, Matt Fleming,
	Ard Biesheuvel, linux-crypto, linux-efi

These are all functions which are invoked from elsewhere, so they are
annotated as global using the new SYM_FUNC_START. And their ENDPROC's by
SYM_FUNC_END.

Now, ENTRY/ENDPROC can be forced to be undefined on X86, so do so.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: x86@kernel.org
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Bill Metzenthen <billm@melbpc.org.au>
Cc: Matt Fleming <matt@codeblueprint.co.uk>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: linux-crypto@vger.kernel.org
Cc: linux-efi@vger.kernel.org
---
 arch/x86/boot/compressed/efi_stub_32.S     |  4 +--
 arch/x86/boot/compressed/head_32.S         | 12 ++++----
 arch/x86/crypto/serpent-sse2-i586-asm_32.S |  8 +++---
 arch/x86/crypto/twofish-i586-asm_32.S      |  8 +++---
 arch/x86/entry/entry_32.S                  | 24 ++++++++--------
 arch/x86/kernel/head_32.S                  | 16 +++++------
 arch/x86/lib/atomic64_386_32.S             |  4 +--
 arch/x86/lib/atomic64_cx8_32.S             | 32 +++++++++++-----------
 arch/x86/lib/checksum_32.S                 |  8 +++---
 arch/x86/math-emu/div_Xsig.S               |  4 +--
 arch/x86/math-emu/div_small.S              |  4 +--
 arch/x86/math-emu/mul_Xsig.S               | 12 ++++----
 arch/x86/math-emu/polynom_Xsig.S           |  4 +--
 arch/x86/math-emu/reg_norm.S               |  8 +++---
 arch/x86/math-emu/reg_round.S              |  4 +--
 arch/x86/math-emu/reg_u_add.S              |  4 +--
 arch/x86/math-emu/reg_u_div.S              |  4 +--
 arch/x86/math-emu/reg_u_mul.S              |  4 +--
 arch/x86/math-emu/reg_u_sub.S              |  4 +--
 arch/x86/math-emu/round_Xsig.S             |  8 +++---
 arch/x86/math-emu/shr_Xsig.S               |  4 +--
 arch/x86/math-emu/wm_shrx.S                |  8 +++---
 arch/x86/math-emu/wm_sqrt.S                |  4 +--
 arch/x86/platform/efi/efi_stub_32.S        |  4 +--
 arch/x86/power/hibernate_asm_32.S          |  8 +++---
 include/linux/linkage.h                    |  8 ++----
 26 files changed, 104 insertions(+), 108 deletions(-)

diff --git a/arch/x86/boot/compressed/efi_stub_32.S b/arch/x86/boot/compressed/efi_stub_32.S
index 257e341fd2c8..ed6c351d34ed 100644
--- a/arch/x86/boot/compressed/efi_stub_32.S
+++ b/arch/x86/boot/compressed/efi_stub_32.S
@@ -24,7 +24,7 @@
  */
 
 .text
-ENTRY(efi_call_phys)
+SYM_FUNC_START(efi_call_phys)
 	/*
 	 * 0. The function can only be called in Linux kernel. So CS has been
 	 * set to 0x0010, DS and SS have been set to 0x0018. In EFI, I found
@@ -77,7 +77,7 @@ ENTRY(efi_call_phys)
 	movl	saved_return_addr(%edx), %ecx
 	pushl	%ecx
 	ret
-ENDPROC(efi_call_phys)
+SYM_FUNC_END(efi_call_phys)
 .previous
 
 .data
diff --git a/arch/x86/boot/compressed/head_32.S b/arch/x86/boot/compressed/head_32.S
index f9e2a80bd699..f2dfd6d083ef 100644
--- a/arch/x86/boot/compressed/head_32.S
+++ b/arch/x86/boot/compressed/head_32.S
@@ -61,7 +61,7 @@
 	.hidden _egot
 
 	__HEAD
-ENTRY(startup_32)
+SYM_FUNC_START(startup_32)
 	cld
 	/*
 	 * Test KEEP_SEGMENTS flag to see if the bootloader is asking
@@ -142,14 +142,14 @@ ENTRY(startup_32)
  */
 	leal	.Lrelocated(%ebx), %eax
 	jmp	*%eax
-ENDPROC(startup_32)
+SYM_FUNC_END(startup_32)
 
 #ifdef CONFIG_EFI_STUB
 /*
  * We don't need the return address, so set up the stack so efi_main() can find
  * its arguments.
  */
-ENTRY(efi_pe_entry)
+SYM_FUNC_START(efi_pe_entry)
 	add	$0x4, %esp
 
 	call	1f
@@ -174,9 +174,9 @@ ENTRY(efi_pe_entry)
 	pushl	%eax
 	pushl	%ecx
 	jmp	2f		/* Skip efi_config initialization */
-ENDPROC(efi_pe_entry)
+SYM_FUNC_END(efi_pe_entry)
 
-ENTRY(efi32_stub_entry)
+SYM_FUNC_START(efi32_stub_entry)
 	add	$0x4, %esp
 	popl	%ecx
 	popl	%edx
@@ -205,7 +205,7 @@ fail:
 	movl	BP_code32_start(%esi), %eax
 	leal	startup_32(%eax), %eax
 	jmp	*%eax
-ENDPROC(efi32_stub_entry)
+SYM_FUNC_END(efi32_stub_entry)
 #endif
 
 	.text
diff --git a/arch/x86/crypto/serpent-sse2-i586-asm_32.S b/arch/x86/crypto/serpent-sse2-i586-asm_32.S
index e5c4a4690ca9..6379b99cb722 100644
--- a/arch/x86/crypto/serpent-sse2-i586-asm_32.S
+++ b/arch/x86/crypto/serpent-sse2-i586-asm_32.S
@@ -497,7 +497,7 @@
 	pxor t0,		x3; \
 	movdqu x3,		(3*4*4)(out);
 
-ENTRY(__serpent_enc_blk_4way)
+SYM_FUNC_START(__serpent_enc_blk_4way)
 	/* input:
 	 *	arg_ctx(%esp): ctx, CTX
 	 *	arg_dst(%esp): dst
@@ -559,9 +559,9 @@ ENTRY(__serpent_enc_blk_4way)
 	xor_blocks(%eax, RA, RB, RC, RD, RT0, RT1, RE);
 
 	ret;
-ENDPROC(__serpent_enc_blk_4way)
+SYM_FUNC_END(__serpent_enc_blk_4way)
 
-ENTRY(serpent_dec_blk_4way)
+SYM_FUNC_START(serpent_dec_blk_4way)
 	/* input:
 	 *	arg_ctx(%esp): ctx, CTX
 	 *	arg_dst(%esp): dst
@@ -613,4 +613,4 @@ ENTRY(serpent_dec_blk_4way)
 	write_blocks(%eax, RC, RD, RB, RE, RT0, RT1, RA);
 
 	ret;
-ENDPROC(serpent_dec_blk_4way)
+SYM_FUNC_END(serpent_dec_blk_4way)
diff --git a/arch/x86/crypto/twofish-i586-asm_32.S b/arch/x86/crypto/twofish-i586-asm_32.S
index 290cc4e9a6fe..a6f09e4f2e46 100644
--- a/arch/x86/crypto/twofish-i586-asm_32.S
+++ b/arch/x86/crypto/twofish-i586-asm_32.S
@@ -207,7 +207,7 @@
 	xor	%esi,		d ## D;\
 	ror	$1,		d ## D;
 
-ENTRY(twofish_enc_blk)
+SYM_FUNC_START(twofish_enc_blk)
 	push	%ebp			/* save registers according to calling convention*/
 	push    %ebx
 	push    %esi
@@ -261,9 +261,9 @@ ENTRY(twofish_enc_blk)
 	pop	%ebp
 	mov	$1,	%eax
 	ret
-ENDPROC(twofish_enc_blk)
+SYM_FUNC_END(twofish_enc_blk)
 
-ENTRY(twofish_dec_blk)
+SYM_FUNC_START(twofish_dec_blk)
 	push	%ebp			/* save registers according to calling convention*/
 	push    %ebx
 	push    %esi
@@ -318,4 +318,4 @@ ENTRY(twofish_dec_blk)
 	pop	%ebp
 	mov	$1,	%eax
 	ret
-ENDPROC(twofish_dec_blk)
+SYM_FUNC_END(twofish_dec_blk)
diff --git a/arch/x86/entry/entry_32.S b/arch/x86/entry/entry_32.S
index 0ecc12fcfc05..a987b62fc591 100644
--- a/arch/x86/entry/entry_32.S
+++ b/arch/x86/entry/entry_32.S
@@ -757,7 +757,7 @@ SYM_CODE_END(__switch_to_asm)
  * asmlinkage function so its argument has to be pushed on the stack.  This
  * wrapper creates a proper "end of stack" frame header before the call.
  */
-ENTRY(schedule_tail_wrapper)
+SYM_FUNC_START(schedule_tail_wrapper)
 	FRAME_BEGIN
 
 	pushl	%eax
@@ -766,7 +766,7 @@ ENTRY(schedule_tail_wrapper)
 
 	FRAME_END
 	ret
-ENDPROC(schedule_tail_wrapper)
+SYM_FUNC_END(schedule_tail_wrapper)
 /*
  * A newly forked process directly context switches into this address.
  *
@@ -885,7 +885,7 @@ SYM_CODE_END(xen_sysenter_target)
  * ebp  user stack
  * 0(%ebp) arg6
  */
-ENTRY(entry_SYSENTER_32)
+SYM_FUNC_START(entry_SYSENTER_32)
 	/*
 	 * On entry-stack with all userspace-regs live - save and
 	 * restore eflags and %eax to use it as scratch-reg for the cr3
@@ -1013,7 +1013,7 @@ ENTRY(entry_SYSENTER_32)
 	popfl
 	jmp	.Lsysenter_flags_fixed
 SYM_ENTRY(__end_SYSENTER_singlestep_region, SYM_L_GLOBAL, SYM_A_NONE)
-ENDPROC(entry_SYSENTER_32)
+SYM_FUNC_END(entry_SYSENTER_32)
 
 /*
  * 32-bit legacy system call entry.
@@ -1043,7 +1043,7 @@ ENDPROC(entry_SYSENTER_32)
  * edi  arg5
  * ebp  arg6
  */
-ENTRY(entry_INT80_32)
+SYM_FUNC_START(entry_INT80_32)
 	ASM_CLAC
 	pushl	%eax			/* pt_regs->orig_ax */
 
@@ -1120,7 +1120,7 @@ SYM_CODE_START(iret_exc)
 SYM_CODE_END(iret_exc)
 .previous
 	_ASM_EXTABLE(.Lirq_return, iret_exc)
-ENDPROC(entry_INT80_32)
+SYM_FUNC_END(entry_INT80_32)
 
 .macro FIXUP_ESPFIX_STACK
 /*
@@ -1213,7 +1213,7 @@ SYM_CODE_START_LOCAL(common_interrupt)
 SYM_CODE_END(common_interrupt)
 
 #define BUILD_INTERRUPT3(name, nr, fn)			\
-ENTRY(name)						\
+SYM_FUNC_START(name)					\
 	ASM_CLAC;					\
 	pushl	$~(nr);					\
 	SAVE_ALL switch_stacks=1;			\
@@ -1222,7 +1222,7 @@ ENTRY(name)						\
 	movl	%esp, %eax;				\
 	call	fn;					\
 	jmp	ret_from_intr;				\
-ENDPROC(name)
+SYM_FUNC_END(name)
 
 #define BUILD_INTERRUPT(name, nr)		\
 	BUILD_INTERRUPT3(name, nr, smp_##name);	\
@@ -1341,7 +1341,7 @@ SYM_CODE_START(spurious_interrupt_bug)
 SYM_CODE_END(spurious_interrupt_bug)
 
 #ifdef CONFIG_XEN_PV
-ENTRY(xen_hypervisor_callback)
+SYM_FUNC_START(xen_hypervisor_callback)
 	pushl	$-1				/* orig_ax = -1 => not a system call */
 	SAVE_ALL
 	ENCODE_FRAME_POINTER
@@ -1369,7 +1369,7 @@ SYM_INNER_LABEL_ALIGN(xen_do_upcall, SYM_L_GLOBAL)
 	call	xen_maybe_preempt_hcall
 #endif
 	jmp	ret_from_intr
-ENDPROC(xen_hypervisor_callback)
+SYM_FUNC_END(xen_hypervisor_callback)
 
 /*
  * Hypervisor uses this for application faults while it executes.
@@ -1383,7 +1383,7 @@ ENDPROC(xen_hypervisor_callback)
  * to pop the stack frame we end up in an infinite loop of failsafe callbacks.
  * We distinguish between categories by maintaining a status value in EAX.
  */
-ENTRY(xen_failsafe_callback)
+SYM_FUNC_START(xen_failsafe_callback)
 	pushl	%eax
 	movl	$1, %eax
 1:	mov	4(%esp), %ds
@@ -1420,7 +1420,7 @@ ENTRY(xen_failsafe_callback)
 	_ASM_EXTABLE(2b, 7b)
 	_ASM_EXTABLE(3b, 8b)
 	_ASM_EXTABLE(4b, 9b)
-ENDPROC(xen_failsafe_callback)
+SYM_FUNC_END(xen_failsafe_callback)
 #endif /* CONFIG_XEN_PV */
 
 #ifdef CONFIG_XEN_PVHVM
diff --git a/arch/x86/kernel/head_32.S b/arch/x86/kernel/head_32.S
index 7029bbaccc41..ea24aa5465fd 100644
--- a/arch/x86/kernel/head_32.S
+++ b/arch/x86/kernel/head_32.S
@@ -180,12 +180,12 @@ SYM_CODE_END(startup_32)
  * up already except stack. We just set up stack here. Then call
  * start_secondary().
  */
-ENTRY(start_cpu0)
+SYM_FUNC_START(start_cpu0)
 	movl initial_stack, %ecx
 	movl %ecx, %esp
 	call *(initial_code)
 1:	jmp 1b
-ENDPROC(start_cpu0)
+SYM_FUNC_END(start_cpu0)
 #endif
 
 /*
@@ -196,7 +196,7 @@ ENDPROC(start_cpu0)
  * If cpu hotplug is not supported then this code can go in init section
  * which will be freed later
  */
-ENTRY(startup_32_smp)
+SYM_FUNC_START(startup_32_smp)
 	cld
 	movl $(__BOOT_DS),%eax
 	movl %eax,%ds
@@ -363,7 +363,7 @@ ENTRY(startup_32_smp)
 
 	call *(initial_code)
 1:	jmp 1b
-ENDPROC(startup_32_smp)
+SYM_FUNC_END(startup_32_smp)
 
 #include "verify_cpu.S"
 
@@ -393,7 +393,7 @@ setup_once:
 	andl $0,setup_once_ref	/* Once is enough, thanks */
 	ret
 
-ENTRY(early_idt_handler_array)
+SYM_FUNC_START(early_idt_handler_array)
 	# 36(%esp) %eflags
 	# 32(%esp) %cs
 	# 28(%esp) %eip
@@ -408,7 +408,7 @@ ENTRY(early_idt_handler_array)
 	i = i + 1
 	.fill early_idt_handler_array + i*EARLY_IDT_HANDLER_SIZE - ., 1, 0xcc
 	.endr
-ENDPROC(early_idt_handler_array)
+SYM_FUNC_END(early_idt_handler_array)
 	
 SYM_CODE_START_LOCAL(early_idt_handler_common)
 	/*
@@ -464,7 +464,7 @@ SYM_CODE_START_LOCAL(early_idt_handler_common)
 SYM_CODE_END(early_idt_handler_common)
 
 /* This is the default interrupt "handler" :-) */
-ENTRY(early_ignore_irq)
+SYM_FUNC_START(early_ignore_irq)
 	cld
 #ifdef CONFIG_PRINTK
 	pushl %eax
@@ -499,7 +499,7 @@ ENTRY(early_ignore_irq)
 hlt_loop:
 	hlt
 	jmp hlt_loop
-ENDPROC(early_ignore_irq)
+SYM_FUNC_END(early_ignore_irq)
 
 __INITDATA
 	.align 4
diff --git a/arch/x86/lib/atomic64_386_32.S b/arch/x86/lib/atomic64_386_32.S
index e0788bade5ab..3b6544111ac9 100644
--- a/arch/x86/lib/atomic64_386_32.S
+++ b/arch/x86/lib/atomic64_386_32.S
@@ -20,10 +20,10 @@
 
 #define BEGIN(op) \
 .macro endp; \
-ENDPROC(atomic64_##op##_386); \
+SYM_FUNC_END(atomic64_##op##_386); \
 .purgem endp; \
 .endm; \
-ENTRY(atomic64_##op##_386); \
+SYM_FUNC_START(atomic64_##op##_386); \
 	LOCK v;
 
 #define ENDP endp
diff --git a/arch/x86/lib/atomic64_cx8_32.S b/arch/x86/lib/atomic64_cx8_32.S
index 843d978ee341..1c5c81c16b06 100644
--- a/arch/x86/lib/atomic64_cx8_32.S
+++ b/arch/x86/lib/atomic64_cx8_32.S
@@ -16,12 +16,12 @@
 	cmpxchg8b (\reg)
 .endm
 
-ENTRY(atomic64_read_cx8)
+SYM_FUNC_START(atomic64_read_cx8)
 	read64 %ecx
 	ret
-ENDPROC(atomic64_read_cx8)
+SYM_FUNC_END(atomic64_read_cx8)
 
-ENTRY(atomic64_set_cx8)
+SYM_FUNC_START(atomic64_set_cx8)
 1:
 /* we don't need LOCK_PREFIX since aligned 64-bit writes
  * are atomic on 586 and newer */
@@ -29,19 +29,19 @@ ENTRY(atomic64_set_cx8)
 	jne 1b
 
 	ret
-ENDPROC(atomic64_set_cx8)
+SYM_FUNC_END(atomic64_set_cx8)
 
-ENTRY(atomic64_xchg_cx8)
+SYM_FUNC_START(atomic64_xchg_cx8)
 1:
 	LOCK_PREFIX
 	cmpxchg8b (%esi)
 	jne 1b
 
 	ret
-ENDPROC(atomic64_xchg_cx8)
+SYM_FUNC_END(atomic64_xchg_cx8)
 
 .macro addsub_return func ins insc
-ENTRY(atomic64_\func\()_return_cx8)
+SYM_FUNC_START(atomic64_\func\()_return_cx8)
 	pushl %ebp
 	pushl %ebx
 	pushl %esi
@@ -69,14 +69,14 @@ ENTRY(atomic64_\func\()_return_cx8)
 	popl %ebx
 	popl %ebp
 	ret
-ENDPROC(atomic64_\func\()_return_cx8)
+SYM_FUNC_END(atomic64_\func\()_return_cx8)
 .endm
 
 addsub_return add add adc
 addsub_return sub sub sbb
 
 .macro incdec_return func ins insc
-ENTRY(atomic64_\func\()_return_cx8)
+SYM_FUNC_START(atomic64_\func\()_return_cx8)
 	pushl %ebx
 
 	read64 %esi
@@ -94,13 +94,13 @@ ENTRY(atomic64_\func\()_return_cx8)
 	movl %ecx, %edx
 	popl %ebx
 	ret
-ENDPROC(atomic64_\func\()_return_cx8)
+SYM_FUNC_END(atomic64_\func\()_return_cx8)
 .endm
 
 incdec_return inc add adc
 incdec_return dec sub sbb
 
-ENTRY(atomic64_dec_if_positive_cx8)
+SYM_FUNC_START(atomic64_dec_if_positive_cx8)
 	pushl %ebx
 
 	read64 %esi
@@ -119,9 +119,9 @@ ENTRY(atomic64_dec_if_positive_cx8)
 	movl %ecx, %edx
 	popl %ebx
 	ret
-ENDPROC(atomic64_dec_if_positive_cx8)
+SYM_FUNC_END(atomic64_dec_if_positive_cx8)
 
-ENTRY(atomic64_add_unless_cx8)
+SYM_FUNC_START(atomic64_add_unless_cx8)
 	pushl %ebp
 	pushl %ebx
 /* these just push these two parameters on the stack */
@@ -155,9 +155,9 @@ ENTRY(atomic64_add_unless_cx8)
 	jne 2b
 	xorl %eax, %eax
 	jmp 3b
-ENDPROC(atomic64_add_unless_cx8)
+SYM_FUNC_END(atomic64_add_unless_cx8)
 
-ENTRY(atomic64_inc_not_zero_cx8)
+SYM_FUNC_START(atomic64_inc_not_zero_cx8)
 	pushl %ebx
 
 	read64 %esi
@@ -177,4 +177,4 @@ ENTRY(atomic64_inc_not_zero_cx8)
 3:
 	popl %ebx
 	ret
-ENDPROC(atomic64_inc_not_zero_cx8)
+SYM_FUNC_END(atomic64_inc_not_zero_cx8)
diff --git a/arch/x86/lib/checksum_32.S b/arch/x86/lib/checksum_32.S
index 74256bd193da..4742e8fa7ee7 100644
--- a/arch/x86/lib/checksum_32.S
+++ b/arch/x86/lib/checksum_32.S
@@ -46,7 +46,7 @@ unsigned int csum_partial(const unsigned char * buff, int len, unsigned int sum)
 	   * Fortunately, it is easy to convert 2-byte alignment to 4-byte
 	   * alignment for the unrolled loop.
 	   */		
-ENTRY(csum_partial)
+SYM_FUNC_START(csum_partial)
 	pushl %esi
 	pushl %ebx
 	movl 20(%esp),%eax	# Function arg: unsigned int sum
@@ -128,13 +128,13 @@ ENTRY(csum_partial)
 	popl %ebx
 	popl %esi
 	ret
-ENDPROC(csum_partial)
+SYM_FUNC_END(csum_partial)
 
 #else
 
 /* Version for PentiumII/PPro */
 
-ENTRY(csum_partial)
+SYM_FUNC_START(csum_partial)
 	pushl %esi
 	pushl %ebx
 	movl 20(%esp),%eax	# Function arg: unsigned int sum
@@ -246,7 +246,7 @@ ENTRY(csum_partial)
 	popl %ebx
 	popl %esi
 	ret
-ENDPROC(csum_partial)
+SYM_FUNC_END(csum_partial)
 				
 #endif
 EXPORT_SYMBOL(csum_partial)
diff --git a/arch/x86/math-emu/div_Xsig.S b/arch/x86/math-emu/div_Xsig.S
index ee08449d20fd..951da2ad54bb 100644
--- a/arch/x86/math-emu/div_Xsig.S
+++ b/arch/x86/math-emu/div_Xsig.S
@@ -75,7 +75,7 @@ FPU_result_1:
 
 
 .text
-ENTRY(div_Xsig)
+SYM_FUNC_START(div_Xsig)
 	pushl	%ebp
 	movl	%esp,%ebp
 #ifndef NON_REENTRANT_FPU
@@ -364,4 +364,4 @@ L_bugged_2:
 	pop	%ebx
 	jmp	L_exit
 #endif /* PARANOID */ 
-ENDPROC(div_Xsig)
+SYM_FUNC_END(div_Xsig)
diff --git a/arch/x86/math-emu/div_small.S b/arch/x86/math-emu/div_small.S
index 8f5025c80ee0..d047d1816abe 100644
--- a/arch/x86/math-emu/div_small.S
+++ b/arch/x86/math-emu/div_small.S
@@ -19,7 +19,7 @@
 #include "fpu_emu.h"
 
 .text
-ENTRY(FPU_div_small)
+SYM_FUNC_START(FPU_div_small)
 	pushl	%ebp
 	movl	%esp,%ebp
 
@@ -45,4 +45,4 @@ ENTRY(FPU_div_small)
 
 	leave
 	ret
-ENDPROC(FPU_div_small)
+SYM_FUNC_END(FPU_div_small)
diff --git a/arch/x86/math-emu/mul_Xsig.S b/arch/x86/math-emu/mul_Xsig.S
index 3e489122a2b0..4afc7b1fa6e9 100644
--- a/arch/x86/math-emu/mul_Xsig.S
+++ b/arch/x86/math-emu/mul_Xsig.S
@@ -25,7 +25,7 @@
 #include "fpu_emu.h"
 
 .text
-ENTRY(mul32_Xsig)
+SYM_FUNC_START(mul32_Xsig)
 	pushl %ebp
 	movl %esp,%ebp
 	subl $16,%esp
@@ -63,10 +63,10 @@ ENTRY(mul32_Xsig)
 	popl %esi
 	leave
 	ret
-ENDPROC(mul32_Xsig)
+SYM_FUNC_END(mul32_Xsig)
 
 
-ENTRY(mul64_Xsig)
+SYM_FUNC_START(mul64_Xsig)
 	pushl %ebp
 	movl %esp,%ebp
 	subl $16,%esp
@@ -116,11 +116,11 @@ ENTRY(mul64_Xsig)
 	popl %esi
 	leave
 	ret
-ENDPROC(mul64_Xsig)
+SYM_FUNC_END(mul64_Xsig)
 
 
 
-ENTRY(mul_Xsig_Xsig)
+SYM_FUNC_START(mul_Xsig_Xsig)
 	pushl %ebp
 	movl %esp,%ebp
 	subl $16,%esp
@@ -176,4 +176,4 @@ ENTRY(mul_Xsig_Xsig)
 	popl %esi
 	leave
 	ret
-ENDPROC(mul_Xsig_Xsig)
+SYM_FUNC_END(mul_Xsig_Xsig)
diff --git a/arch/x86/math-emu/polynom_Xsig.S b/arch/x86/math-emu/polynom_Xsig.S
index 604f0b2d17e8..702315eecb86 100644
--- a/arch/x86/math-emu/polynom_Xsig.S
+++ b/arch/x86/math-emu/polynom_Xsig.S
@@ -37,7 +37,7 @@
 #define OVERFLOWED      -16(%ebp)	/* addition overflow flag */
 
 .text
-ENTRY(polynomial_Xsig)
+SYM_FUNC_START(polynomial_Xsig)
 	pushl	%ebp
 	movl	%esp,%ebp
 	subl	$32,%esp
@@ -134,4 +134,4 @@ L_accum_done:
 	popl	%esi
 	leave
 	ret
-ENDPROC(polynomial_Xsig)
+SYM_FUNC_END(polynomial_Xsig)
diff --git a/arch/x86/math-emu/reg_norm.S b/arch/x86/math-emu/reg_norm.S
index 7f6b4392a15d..cad1d60b1e84 100644
--- a/arch/x86/math-emu/reg_norm.S
+++ b/arch/x86/math-emu/reg_norm.S
@@ -22,7 +22,7 @@
 
 
 .text
-ENTRY(FPU_normalize)
+SYM_FUNC_START(FPU_normalize)
 	pushl	%ebp
 	movl	%esp,%ebp
 	pushl	%ebx
@@ -95,12 +95,12 @@ L_overflow:
 	call	arith_overflow
 	pop	%ebx
 	jmp	L_exit
-ENDPROC(FPU_normalize)
+SYM_FUNC_END(FPU_normalize)
 
 
 
 /* Normalise without reporting underflow or overflow */
-ENTRY(FPU_normalize_nuo)
+SYM_FUNC_START(FPU_normalize_nuo)
 	pushl	%ebp
 	movl	%esp,%ebp
 	pushl	%ebx
@@ -147,4 +147,4 @@ L_exit_nuo_zero:
 	popl	%ebx
 	leave
 	ret
-ENDPROC(FPU_normalize_nuo)
+SYM_FUNC_END(FPU_normalize_nuo)
diff --git a/arch/x86/math-emu/reg_round.S b/arch/x86/math-emu/reg_round.S
index 04563421ee7d..11a1f798451b 100644
--- a/arch/x86/math-emu/reg_round.S
+++ b/arch/x86/math-emu/reg_round.S
@@ -109,7 +109,7 @@ FPU_denormal:
 .globl fpu_Arith_exit
 
 /* Entry point when called from C */
-ENTRY(FPU_round)
+SYM_FUNC_START(FPU_round)
 	pushl	%ebp
 	movl	%esp,%ebp
 	pushl	%esi
@@ -708,4 +708,4 @@ L_exception_exit:
 	jmp	fpu_reg_round_special_exit
 #endif /* PARANOID */ 
 
-ENDPROC(FPU_round)
+SYM_FUNC_END(FPU_round)
diff --git a/arch/x86/math-emu/reg_u_add.S b/arch/x86/math-emu/reg_u_add.S
index 50fe9f8c893c..9c9e2c810afe 100644
--- a/arch/x86/math-emu/reg_u_add.S
+++ b/arch/x86/math-emu/reg_u_add.S
@@ -32,7 +32,7 @@
 #include "control_w.h"
 
 .text
-ENTRY(FPU_u_add)
+SYM_FUNC_START(FPU_u_add)
 	pushl	%ebp
 	movl	%esp,%ebp
 	pushl	%esi
@@ -166,4 +166,4 @@ L_exit:
 	leave
 	ret
 #endif /* PARANOID */
-ENDPROC(FPU_u_add)
+SYM_FUNC_END(FPU_u_add)
diff --git a/arch/x86/math-emu/reg_u_div.S b/arch/x86/math-emu/reg_u_div.S
index 94d545e118e4..e2fb5c2644c5 100644
--- a/arch/x86/math-emu/reg_u_div.S
+++ b/arch/x86/math-emu/reg_u_div.S
@@ -75,7 +75,7 @@ FPU_ovfl_flag:
 #define DEST	PARAM3
 
 .text
-ENTRY(FPU_u_div)
+SYM_FUNC_START(FPU_u_div)
 	pushl	%ebp
 	movl	%esp,%ebp
 #ifndef NON_REENTRANT_FPU
@@ -471,4 +471,4 @@ L_exit:
 	ret
 #endif /* PARANOID */ 
 
-ENDPROC(FPU_u_div)
+SYM_FUNC_END(FPU_u_div)
diff --git a/arch/x86/math-emu/reg_u_mul.S b/arch/x86/math-emu/reg_u_mul.S
index 21cde47fb3e5..0c779c87ac5b 100644
--- a/arch/x86/math-emu/reg_u_mul.S
+++ b/arch/x86/math-emu/reg_u_mul.S
@@ -45,7 +45,7 @@ FPU_accum_1:
 
 
 .text
-ENTRY(FPU_u_mul)
+SYM_FUNC_START(FPU_u_mul)
 	pushl	%ebp
 	movl	%esp,%ebp
 #ifndef NON_REENTRANT_FPU
@@ -147,4 +147,4 @@ L_exit:
 	ret
 #endif /* PARANOID */ 
 
-ENDPROC(FPU_u_mul)
+SYM_FUNC_END(FPU_u_mul)
diff --git a/arch/x86/math-emu/reg_u_sub.S b/arch/x86/math-emu/reg_u_sub.S
index f05dea7dec38..e9bb7c248649 100644
--- a/arch/x86/math-emu/reg_u_sub.S
+++ b/arch/x86/math-emu/reg_u_sub.S
@@ -33,7 +33,7 @@
 #include "control_w.h"
 
 .text
-ENTRY(FPU_u_sub)
+SYM_FUNC_START(FPU_u_sub)
 	pushl	%ebp
 	movl	%esp,%ebp
 	pushl	%esi
@@ -271,4 +271,4 @@ L_exit:
 	popl	%esi
 	leave
 	ret
-ENDPROC(FPU_u_sub)
+SYM_FUNC_END(FPU_u_sub)
diff --git a/arch/x86/math-emu/round_Xsig.S b/arch/x86/math-emu/round_Xsig.S
index 226a51e991f1..d9d7de8dbd7b 100644
--- a/arch/x86/math-emu/round_Xsig.S
+++ b/arch/x86/math-emu/round_Xsig.S
@@ -23,7 +23,7 @@
 
 
 .text
-ENTRY(round_Xsig)
+SYM_FUNC_START(round_Xsig)
 	pushl	%ebp
 	movl	%esp,%ebp
 	pushl	%ebx		/* Reserve some space */
@@ -79,11 +79,11 @@ L_exit:
 	popl	%ebx
 	leave
 	ret
-ENDPROC(round_Xsig)
+SYM_FUNC_END(round_Xsig)
 
 
 
-ENTRY(norm_Xsig)
+SYM_FUNC_START(norm_Xsig)
 	pushl	%ebp
 	movl	%esp,%ebp
 	pushl	%ebx		/* Reserve some space */
@@ -139,4 +139,4 @@ L_n_exit:
 	popl	%ebx
 	leave
 	ret
-ENDPROC(norm_Xsig)
+SYM_FUNC_END(norm_Xsig)
diff --git a/arch/x86/math-emu/shr_Xsig.S b/arch/x86/math-emu/shr_Xsig.S
index 96f4779aa9c1..726af985f758 100644
--- a/arch/x86/math-emu/shr_Xsig.S
+++ b/arch/x86/math-emu/shr_Xsig.S
@@ -22,7 +22,7 @@
 #include "fpu_emu.h"
 
 .text
-ENTRY(shr_Xsig)
+SYM_FUNC_START(shr_Xsig)
 	push	%ebp
 	movl	%esp,%ebp
 	pushl	%esi
@@ -86,4 +86,4 @@ L_more_than_95:
 	popl	%esi
 	leave
 	ret
-ENDPROC(shr_Xsig)
+SYM_FUNC_END(shr_Xsig)
diff --git a/arch/x86/math-emu/wm_shrx.S b/arch/x86/math-emu/wm_shrx.S
index d588874eb6fb..4fc89174caf0 100644
--- a/arch/x86/math-emu/wm_shrx.S
+++ b/arch/x86/math-emu/wm_shrx.S
@@ -33,7 +33,7 @@
  |   Results returned in the 64 bit arg and eax.                             |
  +---------------------------------------------------------------------------*/
 
-ENTRY(FPU_shrx)
+SYM_FUNC_START(FPU_shrx)
 	push	%ebp
 	movl	%esp,%ebp
 	pushl	%esi
@@ -93,7 +93,7 @@ L_more_than_95:
 	popl	%esi
 	leave
 	ret
-ENDPROC(FPU_shrx)
+SYM_FUNC_END(FPU_shrx)
 
 
 /*---------------------------------------------------------------------------+
@@ -112,7 +112,7 @@ ENDPROC(FPU_shrx)
  |   part which has been shifted out of the arg.                             |
  |   Results returned in the 64 bit arg and eax.                             |
  +---------------------------------------------------------------------------*/
-ENTRY(FPU_shrxs)
+SYM_FUNC_START(FPU_shrxs)
 	push	%ebp
 	movl	%esp,%ebp
 	pushl	%esi
@@ -204,4 +204,4 @@ Ls_more_than_95:
 	popl	%esi
 	leave
 	ret
-ENDPROC(FPU_shrxs)
+SYM_FUNC_END(FPU_shrxs)
diff --git a/arch/x86/math-emu/wm_sqrt.S b/arch/x86/math-emu/wm_sqrt.S
index f031c0e19356..3b2b58164ec1 100644
--- a/arch/x86/math-emu/wm_sqrt.S
+++ b/arch/x86/math-emu/wm_sqrt.S
@@ -75,7 +75,7 @@ FPU_fsqrt_arg_0:
 
 
 .text
-ENTRY(wm_sqrt)
+SYM_FUNC_START(wm_sqrt)
 	pushl	%ebp
 	movl	%esp,%ebp
 #ifndef NON_REENTRANT_FPU
@@ -469,4 +469,4 @@ sqrt_more_prec_large:
 /* Our estimate is too large */
 	movl	$0x7fffff00,%eax
 	jmp	sqrt_round_result
-ENDPROC(wm_sqrt)
+SYM_FUNC_END(wm_sqrt)
diff --git a/arch/x86/platform/efi/efi_stub_32.S b/arch/x86/platform/efi/efi_stub_32.S
index ab2e91e76894..eed8b5b441f8 100644
--- a/arch/x86/platform/efi/efi_stub_32.S
+++ b/arch/x86/platform/efi/efi_stub_32.S
@@ -22,7 +22,7 @@
  */
 
 .text
-ENTRY(efi_call_phys)
+SYM_FUNC_START(efi_call_phys)
 	/*
 	 * 0. The function can only be called in Linux kernel. So CS has been
 	 * set to 0x0010, DS and SS have been set to 0x0018. In EFI, I found
@@ -114,7 +114,7 @@ ENTRY(efi_call_phys)
 	movl	(%edx), %ecx
 	pushl	%ecx
 	ret
-ENDPROC(efi_call_phys)
+SYM_FUNC_END(efi_call_phys)
 .previous
 
 .data
diff --git a/arch/x86/power/hibernate_asm_32.S b/arch/x86/power/hibernate_asm_32.S
index a19ed3d23185..8786653ad3c0 100644
--- a/arch/x86/power/hibernate_asm_32.S
+++ b/arch/x86/power/hibernate_asm_32.S
@@ -16,7 +16,7 @@
 
 .text
 
-ENTRY(swsusp_arch_suspend)
+SYM_FUNC_START(swsusp_arch_suspend)
 	movl %esp, saved_context_esp
 	movl %ebx, saved_context_ebx
 	movl %ebp, saved_context_ebp
@@ -33,7 +33,7 @@ ENTRY(swsusp_arch_suspend)
 	call swsusp_save
 	FRAME_END
 	ret
-ENDPROC(swsusp_arch_suspend)
+SYM_FUNC_END(swsusp_arch_suspend)
 
 SYM_CODE_START(restore_image)
 	/* prepare to jump to the image kernel */
@@ -82,7 +82,7 @@ SYM_CODE_END(core_restore_code)
 
 	/* code below belongs to the image kernel */
 	.align PAGE_SIZE
-ENTRY(restore_registers)
+SYM_FUNC_START(restore_registers)
 	/* go back to the original page tables */
 	movl	%ebp, %cr3
 	movl	mmu_cr4_features, %ecx
@@ -109,4 +109,4 @@ ENTRY(restore_registers)
 	movl	%eax, in_suspend
 
 	ret
-ENDPROC(restore_registers)
+SYM_FUNC_END(restore_registers)
diff --git a/include/linux/linkage.h b/include/linux/linkage.h
index 5ffcf72c8f87..331a2306312c 100644
--- a/include/linux/linkage.h
+++ b/include/linux/linkage.h
@@ -112,15 +112,13 @@
 	.globl name ASM_NL \
 	name:
 #endif
-#endif
 
-#ifndef CONFIG_X86_64
 #ifndef ENTRY
 /* deprecated, use SYM_FUNC_START */
 #define ENTRY(name) \
 	SYM_FUNC_START(name)
 #endif
-#endif /* CONFIG_X86_64 */
+#endif /* CONFIG_X86 */
 #endif /* LINKER_SCRIPT */
 
 #ifndef WEAK
@@ -135,9 +133,7 @@
 #define END(name) \
 	.size name, .-name
 #endif
-#endif /* CONFIG_X86 */
 
-#ifndef CONFIG_X86_64
 /* If symbol 'name' is treated as a subroutine (gets called, and returns)
  * then please use ENDPROC to mark 'name' as STT_FUNC for the benefit of
  * static analysis tools such as stack depth analyzer.
@@ -147,7 +143,7 @@
 #define ENDPROC(name) \
 	SYM_FUNC_END(name)
 #endif
-#endif /* CONFIG_X86_64 */
+#endif /* CONFIG_X86 */
 
 /* === generic annotations === */
 
-- 
2.23.0


^ permalink raw reply related	[flat|nested] 110+ messages in thread

* [PATCH v9 28/28] x86/asm: Replace WEAK uses by SYM_INNER_LABEL_ALIGN
  2019-10-11 11:50 [PATCH v9 00/28] New macros for assembler symbols Jiri Slaby
                   ` (26 preceding siblings ...)
  2019-10-11 11:51 ` [PATCH v9 27/28] x86_32/asm: Change all ENTRY+ENDPROC to SYM_FUNC_* Jiri Slaby
@ 2019-10-11 11:51 ` Jiri Slaby
  2019-10-18 16:30   ` [tip: x86/asm] " tip-bot2 for Jiri Slaby
  27 siblings, 1 reply; 110+ messages in thread
From: Jiri Slaby @ 2019-10-11 11:51 UTC (permalink / raw)
  To: bp; +Cc: tglx, mingo, hpa, x86, linux-arch, linux-kernel, Jiri Slaby

Use the new SYM_INNER_LABEL_ALIGN for WEAK entries in the middle of x86
assembly functions.

And make sure WEAK is not defined for x86 anymore as these were the last
users.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: x86@kernel.org
---
 arch/x86/kernel/ftrace_32.S | 2 +-
 arch/x86/kernel/ftrace_64.S | 2 +-
 arch/x86/kernel/head_32.S   | 2 +-
 include/linux/linkage.h     | 2 +-
 4 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/x86/kernel/ftrace_32.S b/arch/x86/kernel/ftrace_32.S
index b4f495bbd5a1..8ed1f5d371f0 100644
--- a/arch/x86/kernel/ftrace_32.S
+++ b/arch/x86/kernel/ftrace_32.S
@@ -85,7 +85,7 @@ ftrace_graph_call:
 #endif
 
 /* This is weak to keep gas from relaxing the jumps */
-WEAK(ftrace_stub)
+SYM_INNER_LABEL_ALIGN(ftrace_stub, SYM_L_WEAK)
 	ret
 SYM_CODE_END(ftrace_caller)
 
diff --git a/arch/x86/kernel/ftrace_64.S b/arch/x86/kernel/ftrace_64.S
index 16deae706950..69c8d1b9119e 100644
--- a/arch/x86/kernel/ftrace_64.S
+++ b/arch/x86/kernel/ftrace_64.S
@@ -168,7 +168,7 @@ SYM_INNER_LABEL(ftrace_graph_call, SYM_L_GLOBAL)
  * This is weak to keep gas from relaxing the jumps.
  * It is also used to copy the retq for trampolines.
  */
-WEAK(ftrace_stub)
+SYM_INNER_LABEL_ALIGN(ftrace_stub, SYM_L_WEAK)
 	retq
 SYM_FUNC_END(ftrace_caller)
 
diff --git a/arch/x86/kernel/head_32.S b/arch/x86/kernel/head_32.S
index ea24aa5465fd..3fe7d2008b7a 100644
--- a/arch/x86/kernel/head_32.S
+++ b/arch/x86/kernel/head_32.S
@@ -156,7 +156,7 @@ SYM_CODE_START(startup_32)
 	jmp *%eax
 
 .Lbad_subarch:
-WEAK(xen_entry)
+SYM_INNER_LABEL_ALIGN(xen_entry, SYM_L_WEAK)
 	/* Unknown implementation; there's really
 	   nothing we can do at this point. */
 	ud2a
diff --git a/include/linux/linkage.h b/include/linux/linkage.h
index 331a2306312c..9280209d1f62 100644
--- a/include/linux/linkage.h
+++ b/include/linux/linkage.h
@@ -121,13 +121,13 @@
 #endif /* CONFIG_X86 */
 #endif /* LINKER_SCRIPT */
 
+#ifndef CONFIG_X86
 #ifndef WEAK
 /* deprecated, use SYM_FUNC_START_WEAK* */
 #define WEAK(name)	   \
 	SYM_FUNC_START_WEAK(name)
 #endif
 
-#ifndef CONFIG_X86
 #ifndef END
 /* deprecated, use SYM_FUNC_END, SYM_DATA_END, or SYM_END */
 #define END(name) \
-- 
2.23.0


^ permalink raw reply related	[flat|nested] 110+ messages in thread

* Re: [PATCH v9 01/28] linkage: Introduce new macros for assembler symbols
  2019-10-11 11:50   ` Jiri Slaby
@ 2019-10-14  9:31     ` Rafael J. Wysocki
  -1 siblings, 0 replies; 110+ messages in thread
From: Rafael J. Wysocki @ 2019-10-14  9:31 UTC (permalink / raw)
  To: Jiri Slaby
  Cc: Borislav Petkov, Thomas Gleixner, Ingo Molnar, H. Peter Anvin,
	the arch/x86 maintainers, linux-arch, Linux Kernel Mailing List,
	Andrew Morton, Boris Ostrovsky, Ingo Molnar, Josh Poimboeuf,
	Juergen Gross, Len Brown, Linus Torvalds, Linux PM, Pavel Machek,
	Peter Zijlstra, Rafael J. Wysocki, xen-devel

On Fri, Oct 11, 2019 at 1:53 PM Jiri Slaby <jslaby@suse.cz> wrote:
>
> Introduce new C macros for annotations of functions and data in
> assembly. There is a long-standing mess in macros like ENTRY, END,
> ENDPROC and similar. They are used in different manners and sometimes
> incorrectly.
>
> So introduce macros with clear use to annotate assembly as follows:
>
> a) Support macros for the ones below
>    SYM_T_FUNC -- type used by assembler to mark functions
>    SYM_T_OBJECT -- type used by assembler to mark data
>    SYM_T_NONE -- type used by assembler to mark entries of unknown type
>
>    They are defined as STT_FUNC, STT_OBJECT, and STT_NOTYPE
>    respectively. According to the gas manual, this is the most portable
>    way. I am not sure about other assemblers, so this can be switched
>    back to %function and %object if this turns into a problem.
>    Architectures can also override them by something like ", @function"
>    if they need.
>
>    SYM_A_ALIGN, SYM_A_NONE -- align the symbol?
>    SYM_L_GLOBAL, SYM_L_WEAK, SYM_L_LOCAL -- linkage of symbols
>
> b) Mostly internal annotations, used by the ones below
>    SYM_ENTRY -- use only if you have to (for non-paired symbols)
>    SYM_START -- use only if you have to (for paired symbols)
>    SYM_END -- use only if you have to (for paired symbols)
>
> c) Annotations for code
>    SYM_INNER_LABEL_ALIGN -- only for labels in the middle of code
>    SYM_INNER_LABEL -- only for labels in the middle of code
>
>    SYM_FUNC_START_LOCAL_ALIAS -- use where there are two local names for
>         one function
>    SYM_FUNC_START_ALIAS -- use where there are two global names for one
>         function
>    SYM_FUNC_END_ALIAS -- the end of LOCAL_ALIASed or ALIASed function
>
>    SYM_FUNC_START -- use for global functions
>    SYM_FUNC_START_NOALIGN -- use for global functions, w/o alignment
>    SYM_FUNC_START_LOCAL -- use for local functions
>    SYM_FUNC_START_LOCAL_NOALIGN -- use for local functions, w/o
>         alignment
>    SYM_FUNC_START_WEAK -- use for weak functions
>    SYM_FUNC_START_WEAK_NOALIGN -- use for weak functions, w/o alignment
>    SYM_FUNC_END -- the end of SYM_FUNC_START_LOCAL, SYM_FUNC_START,
>         SYM_FUNC_START_WEAK, ...
>
>    For functions with special (non-C) calling conventions:
>    SYM_CODE_START -- use for non-C (special) functions
>    SYM_CODE_START_NOALIGN -- use for non-C (special) functions, w/o
>         alignment
>    SYM_CODE_START_LOCAL -- use for local non-C (special) functions
>    SYM_CODE_START_LOCAL_NOALIGN -- use for local non-C (special)
>         functions, w/o alignment
>    SYM_CODE_END -- the end of SYM_CODE_START_LOCAL or SYM_CODE_START
>
> d) For data
>    SYM_DATA_START -- global data symbol
>    SYM_DATA_START_LOCAL -- local data symbol
>    SYM_DATA_END -- the end of the SYM_DATA_START symbol
>    SYM_DATA_END_LABEL -- the labeled end of SYM_DATA_START symbol
>    SYM_DATA -- start+end wrapper around simple global data
>    SYM_DATA_LOCAL -- start+end wrapper around simple local data
>
> ==========
>
> The macros allow to pair starts and ends of functions and mark functions
> correctly in the output ELF objects.
>
> All users of the old macros in x86 are converted to use these in further
> patches.
>
> Signed-off-by: Jiri Slaby <jslaby@suse.cz>
> Cc: Andrew Morton <akpm@linux-foundation.org>
> Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
> Cc: hpa@zytor.com
> Cc: Ingo Molnar <mingo@kernel.org>
> Cc: jpoimboe@redhat.com
> Cc: Juergen Gross <jgross@suse.com>
> Cc: Len Brown <len.brown@intel.com>
> Cc: Linus Torvalds <torvalds@linux-foundation.org>
> Cc: linux-kernel@vger.kernel.org
> Cc: linux-pm@vger.kernel.org
> Cc: Borislav Petkov <bp@alien8.de>
> Cc: mingo@redhat.com
> Cc: Pavel Machek <pavel@ucw.cz>
> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
> Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>
> Cc: Thomas Gleixner <tglx@linutronix.de>
> Cc: xen-devel@lists.xenproject.org
> Cc: x86@kernel.org

Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

for all the changes in the series affecting the power management code
maintained by me.

Thanks!

> ---
>
> Notes:
>     [v2]
>     * use SYM_ prefix and sane names
>     * add SYM_START and SYM_END and parametrize all the macros
>
>     [v3]
>     * add SYM_DATA, SYM_DATA_LOCAL, and SYM_DATA_END_LABEL
>
>     [v4]
>     * add _NOALIGN versions of some macros
>     * add _CODE_ derivates of _FUNC_ macros
>
>     [v5]
>     * drop "SIMPLE" from data annotations
>     * switch NOALIGN and ALIGN variants of inner labels
>     * s/visibility/linkage/; s@SYM_V_@SYM_L_@
>     * add Documentation
>
>     [v6]
>     * fixed typos found by Randy Dunlap
>     * remove doubled INNER_LABEL macros, one pair was unused
>
>     [v8]
>     * use lkml.kernel.org for links
>     * link the docs from index.rst (by Boris)
>     * fixed typos on the docs
>
>     [v9]
>     * updated the docs as requested by Boris
>
>  Documentation/asm-annotations.rst | 216 ++++++++++++++++++++++++++
>  Documentation/index.rst           |   8 +
>  arch/x86/include/asm/linkage.h    |  10 +-
>  include/linux/linkage.h           | 245 +++++++++++++++++++++++++++++-
>  4 files changed, 468 insertions(+), 11 deletions(-)
>  create mode 100644 Documentation/asm-annotations.rst
>
> diff --git a/Documentation/asm-annotations.rst b/Documentation/asm-annotations.rst
> new file mode 100644
> index 000000000000..29ccd6e61fe5
> --- /dev/null
> +++ b/Documentation/asm-annotations.rst
> @@ -0,0 +1,216 @@
> +Assembler Annotations
> +=====================
> +
> +Copyright (c) 2017-2019 Jiri Slaby
> +
> +This document describes the new macros for annotation of data and code in
> +assembly. In particular, it contains information about ``SYM_FUNC_START``,
> +``SYM_FUNC_END``, ``SYM_CODE_START``, and similar.
> +
> +Rationale
> +---------
> +Some code like entries, trampolines, or boot code needs to be written in
> +assembly. The same as in C, such code is grouped into functions and
> +accompanied with data. Standard assemblers do not force users into precisely
> +marking these pieces as code, data, or even specifying their length.
> +Nevertheless, assemblers provide developers with such annotations to aid
> +debuggers throughout assembly. On top of that, developers also want to mark
> +some functions as *global* in order to be visible outside of their translation
> +units.
> +
> +Over time, the Linux kernel has adopted macros from various projects (like
> +``binutils``) to facilitate such annotations. So for historic reasons,
> +developers have been using ``ENTRY``, ``END``, ``ENDPROC``, and other
> +annotations in assembly.  Due to the lack of their documentation, the macros
> +are used in rather wrong contexts at some locations. Clearly, ``ENTRY`` was
> +intended to denote the beginning of global symbols (be it data or code).
> +``END`` used to mark the end of data or end of special functions with
> +*non-standard* calling convention. In contrast, ``ENDPROC`` should annotate
> +only ends of *standard* functions.
> +
> +When these macros are used correctly, they help assemblers generate a nice
> +object with both sizes and types set correctly. For example, the result of
> +``arch/x86/lib/putuser.S``::
> +
> +   Num:    Value          Size Type    Bind   Vis      Ndx Name
> +    25: 0000000000000000    33 FUNC    GLOBAL DEFAULT    1 __put_user_1
> +    29: 0000000000000030    37 FUNC    GLOBAL DEFAULT    1 __put_user_2
> +    32: 0000000000000060    36 FUNC    GLOBAL DEFAULT    1 __put_user_4
> +    35: 0000000000000090    37 FUNC    GLOBAL DEFAULT    1 __put_user_8
> +
> +This is not only important for debugging purposes. When there are properly
> +annotated objects like this, tools can be run on them to generate more useful
> +information. In particular, on properly annotated objects, ``objtool`` can be
> +run to check and fix the object if needed. Currently, ``objtool`` can report
> +missing frame pointer setup/destruction in functions. It can also
> +automatically generate annotations for :doc:`ORC unwinder <x86/orc-unwinder>`
> +for most code. Both of these are especially important to support reliable
> +stack traces which are in turn necessary for :doc:`Kernel live patching
> +<livepatch/livepatch>`.
> +
> +Caveat and Discussion
> +---------------------
> +As one might realize, there were only three macros previously. That is indeed
> +insufficient to cover all the combinations of cases:
> +
> +* standard/non-standard function
> +* code/data
> +* global/local symbol
> +
> +There was a discussion_ and instead of extending the current ``ENTRY/END*``
> +macros, it was decided that brand new macros should be introduced instead::
> +
> +    So how about using macro names that actually show the purpose, instead
> +    of importing all the crappy, historic, essentially randomly chosen
> +    debug symbol macro names from the binutils and older kernels?
> +
> +.. _discussion: https://lkml.kernel.org/r/20170217104757.28588-1-jslaby@suse.cz
> +
> +Macros Description
> +------------------
> +
> +The new macros are prefixed with the ``SYM_`` prefix and can be divided into
> +three main groups:
> +
> +1. ``SYM_FUNC_*`` -- to annotate C-like functions. This means functions with
> +   standard C calling conventions, i.e. the stack contains a return address at
> +   the predefined place and a return from the function can happen in a
> +   standard way. When frame pointers are enabled, save/restore of frame
> +   pointer shall happen at the start/end of a function, respectively, too.
> +
> +   Checking tools like ``objtool`` should ensure such marked functions conform
> +   to these rules. The tools can also easily annotate these functions with
> +   debugging information (like *ORC data*) automatically.
> +
> +2. ``SYM_CODE_*`` -- special functions called with special stack. Be it
> +   interrupt handlers with special stack content, trampolines, or startup
> +   functions.
> +
> +   Checking tools mostly ignore checking of these functions. But some debug
> +   information still can be generated automatically. For correct debug data,
> +   this code needs hints like ``UNWIND_HINT_REGS`` provided by developers.
> +
> +3. ``SYM_DATA*`` -- obviously data belonging to ``.data`` sections and not to
> +   ``.text``. Data do not contain instructions, so they have to be treated
> +   specially by the tools: they should not treat the bytes as instructions,
> +   nor assign any debug information to them.
> +
> +Instruction Macros
> +~~~~~~~~~~~~~~~~~~
> +This section covers ``SYM_FUNC_*`` and ``SYM_CODE_*`` enumerated above.
> +
> +* ``SYM_FUNC_START`` and ``SYM_FUNC_START_LOCAL`` are supposed to be **the
> +  most frequent markings**. They are used for functions with standard calling
> +  conventions -- global and local. Like in C, they both align the functions to
> +  architecture specific ``__ALIGN`` bytes. There are also ``_NOALIGN`` variants
> +  for special cases where developers do not want this implicit alignment.
> +
> +  ``SYM_FUNC_START_WEAK`` and ``SYM_FUNC_START_WEAK_NOALIGN`` markings are
> +  also offered as an assembler counterpart to the *weak* attribute known from
> +  C.
> +
> +  All of these **shall** be coupled with ``SYM_FUNC_END``. First, it marks
> +  the sequence of instructions as a function and computes its size to the
> +  generated object file. Second, it also eases checking and processing such
> +  object files as the tools can trivially find exact function boundaries.
> +
> +  So in most cases, developers should write something like in the following
> +  example, having some asm instructions in between the macros, of course::
> +
> +    SYM_FUNC_START(function_hook)
> +        ... asm insns ...
> +    SYM_FUNC_END(function_hook)
> +
> +  In fact, this kind of annotation corresponds to the now deprecated ``ENTRY``
> +  and ``ENDPROC`` macros.
> +
> +* ``SYM_FUNC_START_ALIAS`` and ``SYM_FUNC_START_LOCAL_ALIAS`` serve for those
> +  who decided to have two or more names for one function. The typical use is::
> +
> +    SYM_FUNC_START_ALIAS(__memset)
> +    SYM_FUNC_START(memset)
> +        ... asm insns ...
> +    SYM_FUNC_END(memset)
> +    SYM_FUNC_END_ALIAS(__memset)
> +
> +  In this example, one can call ``__memset`` or ``memset`` with the same
> +  result, except the debug information for the instructions is generated to
> +  the object file only once -- for the non-``ALIAS`` case.
> +
> +* ``SYM_CODE_START`` and ``SYM_CODE_START_LOCAL`` should be used only in
> +  special cases -- if you know what you are doing. This is used exclusively
> +  for interrupt handlers and similar where the calling convention is not the C
> +  one. ``_NOALIGN`` variants exist too. The use is the same as for the ``FUNC``
> +  category above::
> +
> +    SYM_CODE_START_LOCAL(bad_put_user)
> +        ... asm insns ...
> +    SYM_CODE_END(bad_put_user)
> +
> +  Again, every ``SYM_CODE_START*`` **shall** be coupled by ``SYM_CODE_END``.
> +
> +  To some extent, this category corresponds to deprecated ``ENTRY`` and
> +  ``END``. Except ``END`` had several other meanings too.
> +
> +* ``SYM_INNER_LABEL*`` is used to denote a label inside some
> +  ``SYM_{CODE,FUNC}_START`` and ``SYM_{CODE,FUNC}_END``.  They are very similar
> +  to C labels, except they can be made global. An example of use::
> +
> +    SYM_CODE_START(ftrace_caller)
> +        /* save_mcount_regs fills in first two parameters */
> +        ...
> +
> +    SYM_INNER_LABEL(ftrace_caller_op_ptr, SYM_L_GLOBAL)
> +        /* Load the ftrace_ops into the 3rd parameter */
> +        ...
> +
> +    SYM_INNER_LABEL(ftrace_call, SYM_L_GLOBAL)
> +        call ftrace_stub
> +        ...
> +        retq
> +    SYM_CODE_END(ftrace_caller)
> +
> +Data Macros
> +~~~~~~~~~~~
> +Similar to instructions, there is a couple of macros to describe data in the
> +assembly.
> +
> +* ``SYM_DATA_START`` and ``SYM_DATA_START_LOCAL`` mark the start of some data
> +  and shall be used in conjunction with either ``SYM_DATA_END``, or
> +  ``SYM_DATA_END_LABEL``. The latter adds also a label to the end, so that
> +  people can use ``lstack`` and (local) ``lstack_end`` in the following
> +  example::
> +
> +    SYM_DATA_START_LOCAL(lstack)
> +        .skip 4096
> +    SYM_DATA_END_LABEL(lstack, SYM_L_LOCAL, lstack_end)
> +
> +* ``SYM_DATA`` and ``SYM_DATA_LOCAL`` are variants for simple, mostly one-line
> +  data::
> +
> +    SYM_DATA(HEAP,     .long rm_heap)
> +    SYM_DATA(heap_end, .long rm_stack)
> +
> +  In the end, they expand to ``SYM_DATA_START`` with ``SYM_DATA_END``
> +  internally.
> +
> +Support Macros
> +~~~~~~~~~~~~~~
> +All the above reduce themselves to some invocation of ``SYM_START``,
> +``SYM_END``, or ``SYM_ENTRY`` at last. Normally, developers should avoid using
> +these.
> +
> +Further, in the above examples, one could see ``SYM_L_LOCAL``. There are also
> +``SYM_L_GLOBAL`` and ``SYM_L_WEAK``. All are intended to denote linkage of a
> +symbol marked by them. They are used either in ``_LABEL`` variants of the
> +earlier macros, or in ``SYM_START``.
> +
> +
> +Overriding Macros
> +~~~~~~~~~~~~~~~~~
> +Architecture can also override any of the macros in their own
> +``asm/linkage.h``, including macros specifying the type of a symbol
> +(``SYM_T_FUNC``, ``SYM_T_OBJECT``, and ``SYM_T_NONE``).  As every macro
> +described in this file is surrounded by ``#ifdef`` + ``#endif``, it is enough
> +to define the macros differently in the aforementioned architecture-dependent
> +header.
> diff --git a/Documentation/index.rst b/Documentation/index.rst
> index b843e313d2f2..2ceab197246f 100644
> --- a/Documentation/index.rst
> +++ b/Documentation/index.rst
> @@ -135,6 +135,14 @@ needed).
>     mic/index
>     scheduler/index
>
> +Architecture-agnostic documentation
> +-----------------------------------
> +
> +.. toctree::
> +   :maxdepth: 2
> +
> +   asm-annotations
> +
>  Architecture-specific documentation
>  -----------------------------------
>
> diff --git a/arch/x86/include/asm/linkage.h b/arch/x86/include/asm/linkage.h
> index 14caa9d9fb7f..e07188e8d763 100644
> --- a/arch/x86/include/asm/linkage.h
> +++ b/arch/x86/include/asm/linkage.h
> @@ -13,9 +13,13 @@
>
>  #ifdef __ASSEMBLY__
>
> -#define GLOBAL(name)   \
> -       .globl name;    \
> -       name:
> +/*
> + * GLOBAL is DEPRECATED
> + *
> + * use SYM_DATA_START, SYM_FUNC_START, SYM_INNER_LABEL, SYM_CODE_START, or
> + * similar
> + */
> +#define GLOBAL(name)   SYM_ENTRY(name, SYM_L_GLOBAL, SYM_A_NONE)
>
>  #if defined(CONFIG_X86_64) || defined(CONFIG_X86_ALIGNMENT_16)
>  #define __ALIGN                .p2align 4, 0x90
> diff --git a/include/linux/linkage.h b/include/linux/linkage.h
> index 7e020782ade2..f3ae8f3dea2c 100644
> --- a/include/linux/linkage.h
> +++ b/include/linux/linkage.h
> @@ -75,32 +75,58 @@
>
>  #ifdef __ASSEMBLY__
>
> +/* SYM_T_FUNC -- type used by assembler to mark functions */
> +#ifndef SYM_T_FUNC
> +#define SYM_T_FUNC                             STT_FUNC
> +#endif
> +
> +/* SYM_T_OBJECT -- type used by assembler to mark data */
> +#ifndef SYM_T_OBJECT
> +#define SYM_T_OBJECT                           STT_OBJECT
> +#endif
> +
> +/* SYM_T_NONE -- type used by assembler to mark entries of unknown type */
> +#ifndef SYM_T_NONE
> +#define SYM_T_NONE                             STT_NOTYPE
> +#endif
> +
> +/* SYM_A_* -- align the symbol? */
> +#define SYM_A_ALIGN                            ALIGN
> +#define SYM_A_NONE                             /* nothing */
> +
> +/* SYM_L_* -- linkage of symbols */
> +#define SYM_L_GLOBAL(name)                     .globl name
> +#define SYM_L_WEAK(name)                       .weak name
> +#define SYM_L_LOCAL(name)                      /* nothing */
> +
>  #ifndef LINKER_SCRIPT
>  #define ALIGN __ALIGN
>  #define ALIGN_STR __ALIGN_STR
>
> +/* === DEPRECATED annotations === */
> +
>  #ifndef GLOBAL
> +/* deprecated, use SYM_DATA*, SYM_ENTRY, or similar */
>  #define GLOBAL(name) \
>         .globl name ASM_NL \
>         name:
>  #endif
>
>  #ifndef ENTRY
> +/* deprecated, use SYM_FUNC_START */
>  #define ENTRY(name) \
> -       .globl name ASM_NL \
> -       ALIGN ASM_NL \
> -       name:
> +       SYM_FUNC_START(name)
>  #endif
>  #endif /* LINKER_SCRIPT */
>
>  #ifndef WEAK
> +/* deprecated, use SYM_FUNC_START_WEAK* */
>  #define WEAK(name)        \
> -       .weak name ASM_NL   \
> -       ALIGN ASM_NL \
> -       name:
> +       SYM_FUNC_START_WEAK(name)
>  #endif
>
>  #ifndef END
> +/* deprecated, use SYM_FUNC_END, SYM_DATA_END, or SYM_END */
>  #define END(name) \
>         .size name, .-name
>  #endif
> @@ -110,11 +136,214 @@
>   * static analysis tools such as stack depth analyzer.
>   */
>  #ifndef ENDPROC
> +/* deprecated, use SYM_FUNC_END */
>  #define ENDPROC(name) \
> -       .type name, @function ASM_NL \
> -       END(name)
> +       SYM_FUNC_END(name)
> +#endif
> +
> +/* === generic annotations === */
> +
> +/* SYM_ENTRY -- use only if you have to for non-paired symbols */
> +#ifndef SYM_ENTRY
> +#define SYM_ENTRY(name, linkage, align...)             \
> +       linkage(name) ASM_NL                            \
> +       align ASM_NL                                    \
> +       name:
> +#endif
> +
> +/* SYM_START -- use only if you have to */
> +#ifndef SYM_START
> +#define SYM_START(name, linkage, align...)             \
> +       SYM_ENTRY(name, linkage, align)
> +#endif
> +
> +/* SYM_END -- use only if you have to */
> +#ifndef SYM_END
> +#define SYM_END(name, sym_type)                                \
> +       .type name sym_type ASM_NL                      \
> +       .size name, .-name
> +#endif
> +
> +/* === code annotations === */
> +
> +/*
> + * FUNC -- C-like functions (proper stack frame etc.)
> + * CODE -- non-C code (e.g. irq handlers with different, special stack etc.)
> + *
> + * Objtool validates stack for FUNC, but not for CODE.
> + * Objtool generates debug info for both FUNC & CODE, but needs special
> + * annotations for each CODE's start (to describe the actual stack frame).
> + *
> + * ALIAS -- does not generate debug info -- the aliased function will
> + */
> +
> +/* SYM_INNER_LABEL_ALIGN -- only for labels in the middle of code */
> +#ifndef SYM_INNER_LABEL_ALIGN
> +#define SYM_INNER_LABEL_ALIGN(name, linkage)   \
> +       .type name SYM_T_NONE ASM_NL                    \
> +       SYM_ENTRY(name, linkage, SYM_A_ALIGN)
> +#endif
> +
> +/* SYM_INNER_LABEL -- only for labels in the middle of code */
> +#ifndef SYM_INNER_LABEL
> +#define SYM_INNER_LABEL(name, linkage)         \
> +       .type name SYM_T_NONE ASM_NL                    \
> +       SYM_ENTRY(name, linkage, SYM_A_NONE)
> +#endif
> +
> +/*
> + * SYM_FUNC_START_LOCAL_ALIAS -- use where there are two local names for one
> + * function
> + */
> +#ifndef SYM_FUNC_START_LOCAL_ALIAS
> +#define SYM_FUNC_START_LOCAL_ALIAS(name)               \
> +       SYM_START(name, SYM_L_LOCAL, SYM_A_ALIGN)
> +#endif
> +
> +/*
> + * SYM_FUNC_START_ALIAS -- use where there are two global names for one
> + * function
> + */
> +#ifndef SYM_FUNC_START_ALIAS
> +#define SYM_FUNC_START_ALIAS(name)                     \
> +       SYM_START(name, SYM_L_GLOBAL, SYM_A_ALIGN)
> +#endif
> +
> +/* SYM_FUNC_START -- use for global functions */
> +#ifndef SYM_FUNC_START
> +/*
> + * The same as SYM_FUNC_START_ALIAS, but we will need to distinguish these two
> + * later.
> + */
> +#define SYM_FUNC_START(name)                           \
> +       SYM_START(name, SYM_L_GLOBAL, SYM_A_ALIGN)
> +#endif
> +
> +/* SYM_FUNC_START_NOALIGN -- use for global functions, w/o alignment */
> +#ifndef SYM_FUNC_START_NOALIGN
> +#define SYM_FUNC_START_NOALIGN(name)                   \
> +       SYM_START(name, SYM_L_GLOBAL, SYM_A_NONE)
> +#endif
> +
> +/* SYM_FUNC_START_LOCAL -- use for local functions */
> +#ifndef SYM_FUNC_START_LOCAL
> +/* the same as SYM_FUNC_START_LOCAL_ALIAS, see comment near SYM_FUNC_START */
> +#define SYM_FUNC_START_LOCAL(name)                     \
> +       SYM_START(name, SYM_L_LOCAL, SYM_A_ALIGN)
>  #endif
>
> +/* SYM_FUNC_START_LOCAL_NOALIGN -- use for local functions, w/o alignment */
> +#ifndef SYM_FUNC_START_LOCAL_NOALIGN
> +#define SYM_FUNC_START_LOCAL_NOALIGN(name)             \
> +       SYM_START(name, SYM_L_LOCAL, SYM_A_NONE)
>  #endif
>
> +/* SYM_FUNC_START_WEAK -- use for weak functions */
> +#ifndef SYM_FUNC_START_WEAK
> +#define SYM_FUNC_START_WEAK(name)                      \
> +       SYM_START(name, SYM_L_WEAK, SYM_A_ALIGN)
>  #endif
> +
> +/* SYM_FUNC_START_WEAK_NOALIGN -- use for weak functions, w/o alignment */
> +#ifndef SYM_FUNC_START_WEAK_NOALIGN
> +#define SYM_FUNC_START_WEAK_NOALIGN(name)              \
> +       SYM_START(name, SYM_L_WEAK, SYM_A_NONE)
> +#endif
> +
> +/* SYM_FUNC_END_ALIAS -- the end of LOCAL_ALIASed or ALIASed function */
> +#ifndef SYM_FUNC_END_ALIAS
> +#define SYM_FUNC_END_ALIAS(name)                       \
> +       SYM_END(name, SYM_T_FUNC)
> +#endif
> +
> +/*
> + * SYM_FUNC_END -- the end of SYM_FUNC_START_LOCAL, SYM_FUNC_START,
> + * SYM_FUNC_START_WEAK, ...
> + */
> +#ifndef SYM_FUNC_END
> +/* the same as SYM_FUNC_END_ALIAS, see comment near SYM_FUNC_START */
> +#define SYM_FUNC_END(name)                             \
> +       SYM_END(name, SYM_T_FUNC)
> +#endif
> +
> +/* SYM_CODE_START -- use for non-C (special) functions */
> +#ifndef SYM_CODE_START
> +#define SYM_CODE_START(name)                           \
> +       SYM_START(name, SYM_L_GLOBAL, SYM_A_ALIGN)
> +#endif
> +
> +/* SYM_CODE_START_NOALIGN -- use for non-C (special) functions, w/o alignment */
> +#ifndef SYM_CODE_START_NOALIGN
> +#define SYM_CODE_START_NOALIGN(name)                   \
> +       SYM_START(name, SYM_L_GLOBAL, SYM_A_NONE)
> +#endif
> +
> +/* SYM_CODE_START_LOCAL -- use for local non-C (special) functions */
> +#ifndef SYM_CODE_START_LOCAL
> +#define SYM_CODE_START_LOCAL(name)                     \
> +       SYM_START(name, SYM_L_LOCAL, SYM_A_ALIGN)
> +#endif
> +
> +/*
> + * SYM_CODE_START_LOCAL_NOALIGN -- use for local non-C (special) functions,
> + * w/o alignment
> + */
> +#ifndef SYM_CODE_START_LOCAL_NOALIGN
> +#define SYM_CODE_START_LOCAL_NOALIGN(name)             \
> +       SYM_START(name, SYM_L_LOCAL, SYM_A_NONE)
> +#endif
> +
> +/* SYM_CODE_END -- the end of SYM_CODE_START_LOCAL, SYM_CODE_START, ... */
> +#ifndef SYM_CODE_END
> +#define SYM_CODE_END(name)                             \
> +       SYM_END(name, SYM_T_NONE)
> +#endif
> +
> +/* === data annotations === */
> +
> +/* SYM_DATA_START -- global data symbol */
> +#ifndef SYM_DATA_START
> +#define SYM_DATA_START(name)                           \
> +       SYM_START(name, SYM_L_GLOBAL, SYM_A_NONE)
> +#endif
> +
> +/* SYM_DATA_START -- local data symbol */
> +#ifndef SYM_DATA_START_LOCAL
> +#define SYM_DATA_START_LOCAL(name)                     \
> +       SYM_START(name, SYM_L_LOCAL, SYM_A_NONE)
> +#endif
> +
> +/* SYM_DATA_END -- the end of SYM_DATA_START symbol */
> +#ifndef SYM_DATA_END
> +#define SYM_DATA_END(name)                             \
> +       SYM_END(name, SYM_T_OBJECT)
> +#endif
> +
> +/* SYM_DATA_END_LABEL -- the labeled end of SYM_DATA_START symbol */
> +#ifndef SYM_DATA_END_LABEL
> +#define SYM_DATA_END_LABEL(name, linkage, label)       \
> +       linkage(label) ASM_NL                           \
> +       .type label SYM_T_OBJECT ASM_NL                 \
> +       label:                                          \
> +       SYM_END(name, SYM_T_OBJECT)
> +#endif
> +
> +/* SYM_DATA -- start+end wrapper around simple global data */
> +#ifndef SYM_DATA
> +#define SYM_DATA(name, data...)                                \
> +       SYM_DATA_START(name) ASM_NL                             \
> +       data ASM_NL                                             \
> +       SYM_DATA_END(name)
> +#endif
> +
> +/* SYM_DATA_LOCAL -- start+end wrapper around simple local data */
> +#ifndef SYM_DATA_LOCAL
> +#define SYM_DATA_LOCAL(name, data...)                  \
> +       SYM_DATA_START_LOCAL(name) ASM_NL                       \
> +       data ASM_NL                                             \
> +       SYM_DATA_END(name)
> +#endif
> +
> +#endif /* __ASSEMBLY__ */
> +
> +#endif /* _LINUX_LINKAGE_H */
> --
> 2.23.0
>

^ permalink raw reply	[flat|nested] 110+ messages in thread

* Re: [Xen-devel] [PATCH v9 01/28] linkage: Introduce new macros for assembler symbols
@ 2019-10-14  9:31     ` Rafael J. Wysocki
  0 siblings, 0 replies; 110+ messages in thread
From: Rafael J. Wysocki @ 2019-10-14  9:31 UTC (permalink / raw)
  To: Jiri Slaby
  Cc: linux-arch, Juergen Gross, Peter Zijlstra, Josh Poimboeuf,
	Len Brown, Boris Ostrovsky, Linux PM, the arch/x86 maintainers,
	Rafael J. Wysocki, Linux Kernel Mailing List, Ingo Molnar,
	Ingo Molnar, Borislav Petkov, Pavel Machek, H. Peter Anvin,
	xen-devel, Thomas Gleixner, Linus Torvalds, Andrew Morton

On Fri, Oct 11, 2019 at 1:53 PM Jiri Slaby <jslaby@suse.cz> wrote:
>
> Introduce new C macros for annotations of functions and data in
> assembly. There is a long-standing mess in macros like ENTRY, END,
> ENDPROC and similar. They are used in different manners and sometimes
> incorrectly.
>
> So introduce macros with clear use to annotate assembly as follows:
>
> a) Support macros for the ones below
>    SYM_T_FUNC -- type used by assembler to mark functions
>    SYM_T_OBJECT -- type used by assembler to mark data
>    SYM_T_NONE -- type used by assembler to mark entries of unknown type
>
>    They are defined as STT_FUNC, STT_OBJECT, and STT_NOTYPE
>    respectively. According to the gas manual, this is the most portable
>    way. I am not sure about other assemblers, so this can be switched
>    back to %function and %object if this turns into a problem.
>    Architectures can also override them by something like ", @function"
>    if they need.
>
>    SYM_A_ALIGN, SYM_A_NONE -- align the symbol?
>    SYM_L_GLOBAL, SYM_L_WEAK, SYM_L_LOCAL -- linkage of symbols
>
> b) Mostly internal annotations, used by the ones below
>    SYM_ENTRY -- use only if you have to (for non-paired symbols)
>    SYM_START -- use only if you have to (for paired symbols)
>    SYM_END -- use only if you have to (for paired symbols)
>
> c) Annotations for code
>    SYM_INNER_LABEL_ALIGN -- only for labels in the middle of code
>    SYM_INNER_LABEL -- only for labels in the middle of code
>
>    SYM_FUNC_START_LOCAL_ALIAS -- use where there are two local names for
>         one function
>    SYM_FUNC_START_ALIAS -- use where there are two global names for one
>         function
>    SYM_FUNC_END_ALIAS -- the end of LOCAL_ALIASed or ALIASed function
>
>    SYM_FUNC_START -- use for global functions
>    SYM_FUNC_START_NOALIGN -- use for global functions, w/o alignment
>    SYM_FUNC_START_LOCAL -- use for local functions
>    SYM_FUNC_START_LOCAL_NOALIGN -- use for local functions, w/o
>         alignment
>    SYM_FUNC_START_WEAK -- use for weak functions
>    SYM_FUNC_START_WEAK_NOALIGN -- use for weak functions, w/o alignment
>    SYM_FUNC_END -- the end of SYM_FUNC_START_LOCAL, SYM_FUNC_START,
>         SYM_FUNC_START_WEAK, ...
>
>    For functions with special (non-C) calling conventions:
>    SYM_CODE_START -- use for non-C (special) functions
>    SYM_CODE_START_NOALIGN -- use for non-C (special) functions, w/o
>         alignment
>    SYM_CODE_START_LOCAL -- use for local non-C (special) functions
>    SYM_CODE_START_LOCAL_NOALIGN -- use for local non-C (special)
>         functions, w/o alignment
>    SYM_CODE_END -- the end of SYM_CODE_START_LOCAL or SYM_CODE_START
>
> d) For data
>    SYM_DATA_START -- global data symbol
>    SYM_DATA_START_LOCAL -- local data symbol
>    SYM_DATA_END -- the end of the SYM_DATA_START symbol
>    SYM_DATA_END_LABEL -- the labeled end of SYM_DATA_START symbol
>    SYM_DATA -- start+end wrapper around simple global data
>    SYM_DATA_LOCAL -- start+end wrapper around simple local data
>
> ==========
>
> The macros allow to pair starts and ends of functions and mark functions
> correctly in the output ELF objects.
>
> All users of the old macros in x86 are converted to use these in further
> patches.
>
> Signed-off-by: Jiri Slaby <jslaby@suse.cz>
> Cc: Andrew Morton <akpm@linux-foundation.org>
> Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
> Cc: hpa@zytor.com
> Cc: Ingo Molnar <mingo@kernel.org>
> Cc: jpoimboe@redhat.com
> Cc: Juergen Gross <jgross@suse.com>
> Cc: Len Brown <len.brown@intel.com>
> Cc: Linus Torvalds <torvalds@linux-foundation.org>
> Cc: linux-kernel@vger.kernel.org
> Cc: linux-pm@vger.kernel.org
> Cc: Borislav Petkov <bp@alien8.de>
> Cc: mingo@redhat.com
> Cc: Pavel Machek <pavel@ucw.cz>
> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
> Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>
> Cc: Thomas Gleixner <tglx@linutronix.de>
> Cc: xen-devel@lists.xenproject.org
> Cc: x86@kernel.org

Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

for all the changes in the series affecting the power management code
maintained by me.

Thanks!

> ---
>
> Notes:
>     [v2]
>     * use SYM_ prefix and sane names
>     * add SYM_START and SYM_END and parametrize all the macros
>
>     [v3]
>     * add SYM_DATA, SYM_DATA_LOCAL, and SYM_DATA_END_LABEL
>
>     [v4]
>     * add _NOALIGN versions of some macros
>     * add _CODE_ derivates of _FUNC_ macros
>
>     [v5]
>     * drop "SIMPLE" from data annotations
>     * switch NOALIGN and ALIGN variants of inner labels
>     * s/visibility/linkage/; s@SYM_V_@SYM_L_@
>     * add Documentation
>
>     [v6]
>     * fixed typos found by Randy Dunlap
>     * remove doubled INNER_LABEL macros, one pair was unused
>
>     [v8]
>     * use lkml.kernel.org for links
>     * link the docs from index.rst (by Boris)
>     * fixed typos on the docs
>
>     [v9]
>     * updated the docs as requested by Boris
>
>  Documentation/asm-annotations.rst | 216 ++++++++++++++++++++++++++
>  Documentation/index.rst           |   8 +
>  arch/x86/include/asm/linkage.h    |  10 +-
>  include/linux/linkage.h           | 245 +++++++++++++++++++++++++++++-
>  4 files changed, 468 insertions(+), 11 deletions(-)
>  create mode 100644 Documentation/asm-annotations.rst
>
> diff --git a/Documentation/asm-annotations.rst b/Documentation/asm-annotations.rst
> new file mode 100644
> index 000000000000..29ccd6e61fe5
> --- /dev/null
> +++ b/Documentation/asm-annotations.rst
> @@ -0,0 +1,216 @@
> +Assembler Annotations
> +=====================
> +
> +Copyright (c) 2017-2019 Jiri Slaby
> +
> +This document describes the new macros for annotation of data and code in
> +assembly. In particular, it contains information about ``SYM_FUNC_START``,
> +``SYM_FUNC_END``, ``SYM_CODE_START``, and similar.
> +
> +Rationale
> +---------
> +Some code like entries, trampolines, or boot code needs to be written in
> +assembly. The same as in C, such code is grouped into functions and
> +accompanied with data. Standard assemblers do not force users into precisely
> +marking these pieces as code, data, or even specifying their length.
> +Nevertheless, assemblers provide developers with such annotations to aid
> +debuggers throughout assembly. On top of that, developers also want to mark
> +some functions as *global* in order to be visible outside of their translation
> +units.
> +
> +Over time, the Linux kernel has adopted macros from various projects (like
> +``binutils``) to facilitate such annotations. So for historic reasons,
> +developers have been using ``ENTRY``, ``END``, ``ENDPROC``, and other
> +annotations in assembly.  Due to the lack of their documentation, the macros
> +are used in rather wrong contexts at some locations. Clearly, ``ENTRY`` was
> +intended to denote the beginning of global symbols (be it data or code).
> +``END`` used to mark the end of data or end of special functions with
> +*non-standard* calling convention. In contrast, ``ENDPROC`` should annotate
> +only ends of *standard* functions.
> +
> +When these macros are used correctly, they help assemblers generate a nice
> +object with both sizes and types set correctly. For example, the result of
> +``arch/x86/lib/putuser.S``::
> +
> +   Num:    Value          Size Type    Bind   Vis      Ndx Name
> +    25: 0000000000000000    33 FUNC    GLOBAL DEFAULT    1 __put_user_1
> +    29: 0000000000000030    37 FUNC    GLOBAL DEFAULT    1 __put_user_2
> +    32: 0000000000000060    36 FUNC    GLOBAL DEFAULT    1 __put_user_4
> +    35: 0000000000000090    37 FUNC    GLOBAL DEFAULT    1 __put_user_8
> +
> +This is not only important for debugging purposes. When there are properly
> +annotated objects like this, tools can be run on them to generate more useful
> +information. In particular, on properly annotated objects, ``objtool`` can be
> +run to check and fix the object if needed. Currently, ``objtool`` can report
> +missing frame pointer setup/destruction in functions. It can also
> +automatically generate annotations for :doc:`ORC unwinder <x86/orc-unwinder>`
> +for most code. Both of these are especially important to support reliable
> +stack traces which are in turn necessary for :doc:`Kernel live patching
> +<livepatch/livepatch>`.
> +
> +Caveat and Discussion
> +---------------------
> +As one might realize, there were only three macros previously. That is indeed
> +insufficient to cover all the combinations of cases:
> +
> +* standard/non-standard function
> +* code/data
> +* global/local symbol
> +
> +There was a discussion_ and instead of extending the current ``ENTRY/END*``
> +macros, it was decided that brand new macros should be introduced instead::
> +
> +    So how about using macro names that actually show the purpose, instead
> +    of importing all the crappy, historic, essentially randomly chosen
> +    debug symbol macro names from the binutils and older kernels?
> +
> +.. _discussion: https://lkml.kernel.org/r/20170217104757.28588-1-jslaby@suse.cz
> +
> +Macros Description
> +------------------
> +
> +The new macros are prefixed with the ``SYM_`` prefix and can be divided into
> +three main groups:
> +
> +1. ``SYM_FUNC_*`` -- to annotate C-like functions. This means functions with
> +   standard C calling conventions, i.e. the stack contains a return address at
> +   the predefined place and a return from the function can happen in a
> +   standard way. When frame pointers are enabled, save/restore of frame
> +   pointer shall happen at the start/end of a function, respectively, too.
> +
> +   Checking tools like ``objtool`` should ensure such marked functions conform
> +   to these rules. The tools can also easily annotate these functions with
> +   debugging information (like *ORC data*) automatically.
> +
> +2. ``SYM_CODE_*`` -- special functions called with special stack. Be it
> +   interrupt handlers with special stack content, trampolines, or startup
> +   functions.
> +
> +   Checking tools mostly ignore checking of these functions. But some debug
> +   information still can be generated automatically. For correct debug data,
> +   this code needs hints like ``UNWIND_HINT_REGS`` provided by developers.
> +
> +3. ``SYM_DATA*`` -- obviously data belonging to ``.data`` sections and not to
> +   ``.text``. Data do not contain instructions, so they have to be treated
> +   specially by the tools: they should not treat the bytes as instructions,
> +   nor assign any debug information to them.
> +
> +Instruction Macros
> +~~~~~~~~~~~~~~~~~~
> +This section covers ``SYM_FUNC_*`` and ``SYM_CODE_*`` enumerated above.
> +
> +* ``SYM_FUNC_START`` and ``SYM_FUNC_START_LOCAL`` are supposed to be **the
> +  most frequent markings**. They are used for functions with standard calling
> +  conventions -- global and local. Like in C, they both align the functions to
> +  architecture specific ``__ALIGN`` bytes. There are also ``_NOALIGN`` variants
> +  for special cases where developers do not want this implicit alignment.
> +
> +  ``SYM_FUNC_START_WEAK`` and ``SYM_FUNC_START_WEAK_NOALIGN`` markings are
> +  also offered as an assembler counterpart to the *weak* attribute known from
> +  C.
> +
> +  All of these **shall** be coupled with ``SYM_FUNC_END``. First, it marks
> +  the sequence of instructions as a function and computes its size to the
> +  generated object file. Second, it also eases checking and processing such
> +  object files as the tools can trivially find exact function boundaries.
> +
> +  So in most cases, developers should write something like in the following
> +  example, having some asm instructions in between the macros, of course::
> +
> +    SYM_FUNC_START(function_hook)
> +        ... asm insns ...
> +    SYM_FUNC_END(function_hook)
> +
> +  In fact, this kind of annotation corresponds to the now deprecated ``ENTRY``
> +  and ``ENDPROC`` macros.
> +
> +* ``SYM_FUNC_START_ALIAS`` and ``SYM_FUNC_START_LOCAL_ALIAS`` serve for those
> +  who decided to have two or more names for one function. The typical use is::
> +
> +    SYM_FUNC_START_ALIAS(__memset)
> +    SYM_FUNC_START(memset)
> +        ... asm insns ...
> +    SYM_FUNC_END(memset)
> +    SYM_FUNC_END_ALIAS(__memset)
> +
> +  In this example, one can call ``__memset`` or ``memset`` with the same
> +  result, except the debug information for the instructions is generated to
> +  the object file only once -- for the non-``ALIAS`` case.
> +
> +* ``SYM_CODE_START`` and ``SYM_CODE_START_LOCAL`` should be used only in
> +  special cases -- if you know what you are doing. This is used exclusively
> +  for interrupt handlers and similar where the calling convention is not the C
> +  one. ``_NOALIGN`` variants exist too. The use is the same as for the ``FUNC``
> +  category above::
> +
> +    SYM_CODE_START_LOCAL(bad_put_user)
> +        ... asm insns ...
> +    SYM_CODE_END(bad_put_user)
> +
> +  Again, every ``SYM_CODE_START*`` **shall** be coupled by ``SYM_CODE_END``.
> +
> +  To some extent, this category corresponds to deprecated ``ENTRY`` and
> +  ``END``. Except ``END`` had several other meanings too.
> +
> +* ``SYM_INNER_LABEL*`` is used to denote a label inside some
> +  ``SYM_{CODE,FUNC}_START`` and ``SYM_{CODE,FUNC}_END``.  They are very similar
> +  to C labels, except they can be made global. An example of use::
> +
> +    SYM_CODE_START(ftrace_caller)
> +        /* save_mcount_regs fills in first two parameters */
> +        ...
> +
> +    SYM_INNER_LABEL(ftrace_caller_op_ptr, SYM_L_GLOBAL)
> +        /* Load the ftrace_ops into the 3rd parameter */
> +        ...
> +
> +    SYM_INNER_LABEL(ftrace_call, SYM_L_GLOBAL)
> +        call ftrace_stub
> +        ...
> +        retq
> +    SYM_CODE_END(ftrace_caller)
> +
> +Data Macros
> +~~~~~~~~~~~
> +Similar to instructions, there is a couple of macros to describe data in the
> +assembly.
> +
> +* ``SYM_DATA_START`` and ``SYM_DATA_START_LOCAL`` mark the start of some data
> +  and shall be used in conjunction with either ``SYM_DATA_END``, or
> +  ``SYM_DATA_END_LABEL``. The latter adds also a label to the end, so that
> +  people can use ``lstack`` and (local) ``lstack_end`` in the following
> +  example::
> +
> +    SYM_DATA_START_LOCAL(lstack)
> +        .skip 4096
> +    SYM_DATA_END_LABEL(lstack, SYM_L_LOCAL, lstack_end)
> +
> +* ``SYM_DATA`` and ``SYM_DATA_LOCAL`` are variants for simple, mostly one-line
> +  data::
> +
> +    SYM_DATA(HEAP,     .long rm_heap)
> +    SYM_DATA(heap_end, .long rm_stack)
> +
> +  In the end, they expand to ``SYM_DATA_START`` with ``SYM_DATA_END``
> +  internally.
> +
> +Support Macros
> +~~~~~~~~~~~~~~
> +All the above reduce themselves to some invocation of ``SYM_START``,
> +``SYM_END``, or ``SYM_ENTRY`` at last. Normally, developers should avoid using
> +these.
> +
> +Further, in the above examples, one could see ``SYM_L_LOCAL``. There are also
> +``SYM_L_GLOBAL`` and ``SYM_L_WEAK``. All are intended to denote linkage of a
> +symbol marked by them. They are used either in ``_LABEL`` variants of the
> +earlier macros, or in ``SYM_START``.
> +
> +
> +Overriding Macros
> +~~~~~~~~~~~~~~~~~
> +Architecture can also override any of the macros in their own
> +``asm/linkage.h``, including macros specifying the type of a symbol
> +(``SYM_T_FUNC``, ``SYM_T_OBJECT``, and ``SYM_T_NONE``).  As every macro
> +described in this file is surrounded by ``#ifdef`` + ``#endif``, it is enough
> +to define the macros differently in the aforementioned architecture-dependent
> +header.
> diff --git a/Documentation/index.rst b/Documentation/index.rst
> index b843e313d2f2..2ceab197246f 100644
> --- a/Documentation/index.rst
> +++ b/Documentation/index.rst
> @@ -135,6 +135,14 @@ needed).
>     mic/index
>     scheduler/index
>
> +Architecture-agnostic documentation
> +-----------------------------------
> +
> +.. toctree::
> +   :maxdepth: 2
> +
> +   asm-annotations
> +
>  Architecture-specific documentation
>  -----------------------------------
>
> diff --git a/arch/x86/include/asm/linkage.h b/arch/x86/include/asm/linkage.h
> index 14caa9d9fb7f..e07188e8d763 100644
> --- a/arch/x86/include/asm/linkage.h
> +++ b/arch/x86/include/asm/linkage.h
> @@ -13,9 +13,13 @@
>
>  #ifdef __ASSEMBLY__
>
> -#define GLOBAL(name)   \
> -       .globl name;    \
> -       name:
> +/*
> + * GLOBAL is DEPRECATED
> + *
> + * use SYM_DATA_START, SYM_FUNC_START, SYM_INNER_LABEL, SYM_CODE_START, or
> + * similar
> + */
> +#define GLOBAL(name)   SYM_ENTRY(name, SYM_L_GLOBAL, SYM_A_NONE)
>
>  #if defined(CONFIG_X86_64) || defined(CONFIG_X86_ALIGNMENT_16)
>  #define __ALIGN                .p2align 4, 0x90
> diff --git a/include/linux/linkage.h b/include/linux/linkage.h
> index 7e020782ade2..f3ae8f3dea2c 100644
> --- a/include/linux/linkage.h
> +++ b/include/linux/linkage.h
> @@ -75,32 +75,58 @@
>
>  #ifdef __ASSEMBLY__
>
> +/* SYM_T_FUNC -- type used by assembler to mark functions */
> +#ifndef SYM_T_FUNC
> +#define SYM_T_FUNC                             STT_FUNC
> +#endif
> +
> +/* SYM_T_OBJECT -- type used by assembler to mark data */
> +#ifndef SYM_T_OBJECT
> +#define SYM_T_OBJECT                           STT_OBJECT
> +#endif
> +
> +/* SYM_T_NONE -- type used by assembler to mark entries of unknown type */
> +#ifndef SYM_T_NONE
> +#define SYM_T_NONE                             STT_NOTYPE
> +#endif
> +
> +/* SYM_A_* -- align the symbol? */
> +#define SYM_A_ALIGN                            ALIGN
> +#define SYM_A_NONE                             /* nothing */
> +
> +/* SYM_L_* -- linkage of symbols */
> +#define SYM_L_GLOBAL(name)                     .globl name
> +#define SYM_L_WEAK(name)                       .weak name
> +#define SYM_L_LOCAL(name)                      /* nothing */
> +
>  #ifndef LINKER_SCRIPT
>  #define ALIGN __ALIGN
>  #define ALIGN_STR __ALIGN_STR
>
> +/* === DEPRECATED annotations === */
> +
>  #ifndef GLOBAL
> +/* deprecated, use SYM_DATA*, SYM_ENTRY, or similar */
>  #define GLOBAL(name) \
>         .globl name ASM_NL \
>         name:
>  #endif
>
>  #ifndef ENTRY
> +/* deprecated, use SYM_FUNC_START */
>  #define ENTRY(name) \
> -       .globl name ASM_NL \
> -       ALIGN ASM_NL \
> -       name:
> +       SYM_FUNC_START(name)
>  #endif
>  #endif /* LINKER_SCRIPT */
>
>  #ifndef WEAK
> +/* deprecated, use SYM_FUNC_START_WEAK* */
>  #define WEAK(name)        \
> -       .weak name ASM_NL   \
> -       ALIGN ASM_NL \
> -       name:
> +       SYM_FUNC_START_WEAK(name)
>  #endif
>
>  #ifndef END
> +/* deprecated, use SYM_FUNC_END, SYM_DATA_END, or SYM_END */
>  #define END(name) \
>         .size name, .-name
>  #endif
> @@ -110,11 +136,214 @@
>   * static analysis tools such as stack depth analyzer.
>   */
>  #ifndef ENDPROC
> +/* deprecated, use SYM_FUNC_END */
>  #define ENDPROC(name) \
> -       .type name, @function ASM_NL \
> -       END(name)
> +       SYM_FUNC_END(name)
> +#endif
> +
> +/* === generic annotations === */
> +
> +/* SYM_ENTRY -- use only if you have to for non-paired symbols */
> +#ifndef SYM_ENTRY
> +#define SYM_ENTRY(name, linkage, align...)             \
> +       linkage(name) ASM_NL                            \
> +       align ASM_NL                                    \
> +       name:
> +#endif
> +
> +/* SYM_START -- use only if you have to */
> +#ifndef SYM_START
> +#define SYM_START(name, linkage, align...)             \
> +       SYM_ENTRY(name, linkage, align)
> +#endif
> +
> +/* SYM_END -- use only if you have to */
> +#ifndef SYM_END
> +#define SYM_END(name, sym_type)                                \
> +       .type name sym_type ASM_NL                      \
> +       .size name, .-name
> +#endif
> +
> +/* === code annotations === */
> +
> +/*
> + * FUNC -- C-like functions (proper stack frame etc.)
> + * CODE -- non-C code (e.g. irq handlers with different, special stack etc.)
> + *
> + * Objtool validates stack for FUNC, but not for CODE.
> + * Objtool generates debug info for both FUNC & CODE, but needs special
> + * annotations for each CODE's start (to describe the actual stack frame).
> + *
> + * ALIAS -- does not generate debug info -- the aliased function will
> + */
> +
> +/* SYM_INNER_LABEL_ALIGN -- only for labels in the middle of code */
> +#ifndef SYM_INNER_LABEL_ALIGN
> +#define SYM_INNER_LABEL_ALIGN(name, linkage)   \
> +       .type name SYM_T_NONE ASM_NL                    \
> +       SYM_ENTRY(name, linkage, SYM_A_ALIGN)
> +#endif
> +
> +/* SYM_INNER_LABEL -- only for labels in the middle of code */
> +#ifndef SYM_INNER_LABEL
> +#define SYM_INNER_LABEL(name, linkage)         \
> +       .type name SYM_T_NONE ASM_NL                    \
> +       SYM_ENTRY(name, linkage, SYM_A_NONE)
> +#endif
> +
> +/*
> + * SYM_FUNC_START_LOCAL_ALIAS -- use where there are two local names for one
> + * function
> + */
> +#ifndef SYM_FUNC_START_LOCAL_ALIAS
> +#define SYM_FUNC_START_LOCAL_ALIAS(name)               \
> +       SYM_START(name, SYM_L_LOCAL, SYM_A_ALIGN)
> +#endif
> +
> +/*
> + * SYM_FUNC_START_ALIAS -- use where there are two global names for one
> + * function
> + */
> +#ifndef SYM_FUNC_START_ALIAS
> +#define SYM_FUNC_START_ALIAS(name)                     \
> +       SYM_START(name, SYM_L_GLOBAL, SYM_A_ALIGN)
> +#endif
> +
> +/* SYM_FUNC_START -- use for global functions */
> +#ifndef SYM_FUNC_START
> +/*
> + * The same as SYM_FUNC_START_ALIAS, but we will need to distinguish these two
> + * later.
> + */
> +#define SYM_FUNC_START(name)                           \
> +       SYM_START(name, SYM_L_GLOBAL, SYM_A_ALIGN)
> +#endif
> +
> +/* SYM_FUNC_START_NOALIGN -- use for global functions, w/o alignment */
> +#ifndef SYM_FUNC_START_NOALIGN
> +#define SYM_FUNC_START_NOALIGN(name)                   \
> +       SYM_START(name, SYM_L_GLOBAL, SYM_A_NONE)
> +#endif
> +
> +/* SYM_FUNC_START_LOCAL -- use for local functions */
> +#ifndef SYM_FUNC_START_LOCAL
> +/* the same as SYM_FUNC_START_LOCAL_ALIAS, see comment near SYM_FUNC_START */
> +#define SYM_FUNC_START_LOCAL(name)                     \
> +       SYM_START(name, SYM_L_LOCAL, SYM_A_ALIGN)
>  #endif
>
> +/* SYM_FUNC_START_LOCAL_NOALIGN -- use for local functions, w/o alignment */
> +#ifndef SYM_FUNC_START_LOCAL_NOALIGN
> +#define SYM_FUNC_START_LOCAL_NOALIGN(name)             \
> +       SYM_START(name, SYM_L_LOCAL, SYM_A_NONE)
>  #endif
>
> +/* SYM_FUNC_START_WEAK -- use for weak functions */
> +#ifndef SYM_FUNC_START_WEAK
> +#define SYM_FUNC_START_WEAK(name)                      \
> +       SYM_START(name, SYM_L_WEAK, SYM_A_ALIGN)
>  #endif
> +
> +/* SYM_FUNC_START_WEAK_NOALIGN -- use for weak functions, w/o alignment */
> +#ifndef SYM_FUNC_START_WEAK_NOALIGN
> +#define SYM_FUNC_START_WEAK_NOALIGN(name)              \
> +       SYM_START(name, SYM_L_WEAK, SYM_A_NONE)
> +#endif
> +
> +/* SYM_FUNC_END_ALIAS -- the end of LOCAL_ALIASed or ALIASed function */
> +#ifndef SYM_FUNC_END_ALIAS
> +#define SYM_FUNC_END_ALIAS(name)                       \
> +       SYM_END(name, SYM_T_FUNC)
> +#endif
> +
> +/*
> + * SYM_FUNC_END -- the end of SYM_FUNC_START_LOCAL, SYM_FUNC_START,
> + * SYM_FUNC_START_WEAK, ...
> + */
> +#ifndef SYM_FUNC_END
> +/* the same as SYM_FUNC_END_ALIAS, see comment near SYM_FUNC_START */
> +#define SYM_FUNC_END(name)                             \
> +       SYM_END(name, SYM_T_FUNC)
> +#endif
> +
> +/* SYM_CODE_START -- use for non-C (special) functions */
> +#ifndef SYM_CODE_START
> +#define SYM_CODE_START(name)                           \
> +       SYM_START(name, SYM_L_GLOBAL, SYM_A_ALIGN)
> +#endif
> +
> +/* SYM_CODE_START_NOALIGN -- use for non-C (special) functions, w/o alignment */
> +#ifndef SYM_CODE_START_NOALIGN
> +#define SYM_CODE_START_NOALIGN(name)                   \
> +       SYM_START(name, SYM_L_GLOBAL, SYM_A_NONE)
> +#endif
> +
> +/* SYM_CODE_START_LOCAL -- use for local non-C (special) functions */
> +#ifndef SYM_CODE_START_LOCAL
> +#define SYM_CODE_START_LOCAL(name)                     \
> +       SYM_START(name, SYM_L_LOCAL, SYM_A_ALIGN)
> +#endif
> +
> +/*
> + * SYM_CODE_START_LOCAL_NOALIGN -- use for local non-C (special) functions,
> + * w/o alignment
> + */
> +#ifndef SYM_CODE_START_LOCAL_NOALIGN
> +#define SYM_CODE_START_LOCAL_NOALIGN(name)             \
> +       SYM_START(name, SYM_L_LOCAL, SYM_A_NONE)
> +#endif
> +
> +/* SYM_CODE_END -- the end of SYM_CODE_START_LOCAL, SYM_CODE_START, ... */
> +#ifndef SYM_CODE_END
> +#define SYM_CODE_END(name)                             \
> +       SYM_END(name, SYM_T_NONE)
> +#endif
> +
> +/* === data annotations === */
> +
> +/* SYM_DATA_START -- global data symbol */
> +#ifndef SYM_DATA_START
> +#define SYM_DATA_START(name)                           \
> +       SYM_START(name, SYM_L_GLOBAL, SYM_A_NONE)
> +#endif
> +
> +/* SYM_DATA_START -- local data symbol */
> +#ifndef SYM_DATA_START_LOCAL
> +#define SYM_DATA_START_LOCAL(name)                     \
> +       SYM_START(name, SYM_L_LOCAL, SYM_A_NONE)
> +#endif
> +
> +/* SYM_DATA_END -- the end of SYM_DATA_START symbol */
> +#ifndef SYM_DATA_END
> +#define SYM_DATA_END(name)                             \
> +       SYM_END(name, SYM_T_OBJECT)
> +#endif
> +
> +/* SYM_DATA_END_LABEL -- the labeled end of SYM_DATA_START symbol */
> +#ifndef SYM_DATA_END_LABEL
> +#define SYM_DATA_END_LABEL(name, linkage, label)       \
> +       linkage(label) ASM_NL                           \
> +       .type label SYM_T_OBJECT ASM_NL                 \
> +       label:                                          \
> +       SYM_END(name, SYM_T_OBJECT)
> +#endif
> +
> +/* SYM_DATA -- start+end wrapper around simple global data */
> +#ifndef SYM_DATA
> +#define SYM_DATA(name, data...)                                \
> +       SYM_DATA_START(name) ASM_NL                             \
> +       data ASM_NL                                             \
> +       SYM_DATA_END(name)
> +#endif
> +
> +/* SYM_DATA_LOCAL -- start+end wrapper around simple local data */
> +#ifndef SYM_DATA_LOCAL
> +#define SYM_DATA_LOCAL(name, data...)                  \
> +       SYM_DATA_START_LOCAL(name) ASM_NL                       \
> +       data ASM_NL                                             \
> +       SYM_DATA_END(name)
> +#endif
> +
> +#endif /* __ASSEMBLY__ */
> +
> +#endif /* _LINUX_LINKAGE_H */
> --
> 2.23.0
>

_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xenproject.org
https://lists.xenproject.org/mailman/listinfo/xen-devel

^ permalink raw reply	[flat|nested] 110+ messages in thread

* Re: [PATCH v9 03/28] x86/asm: Annotate relocate_kernel_{32,64}.c
  2019-10-11 11:50 ` [PATCH v9 03/28] x86/asm: Annotate relocate_kernel_{32,64}.c Jiri Slaby
@ 2019-10-14 13:15   ` Borislav Petkov
  2019-10-18 16:30   ` [tip: x86/asm] " tip-bot2 for Jiri Slaby
  1 sibling, 0 replies; 110+ messages in thread
From: Borislav Petkov @ 2019-10-14 13:15 UTC (permalink / raw)
  To: Jiri Slaby; +Cc: tglx, mingo, hpa, x86, linux-arch, linux-kernel

On Fri, Oct 11, 2019 at 01:50:43PM +0200, Jiri Slaby wrote:
> There are functions in relocate_kernel_{32,64}.c which are not
> annotated. This makes automatic works on them rather hard. So annotate

Restoring from the previous version: s/works/annotations/

-- 
Regards/Gruss,
    Boris.

https://people.kernel.org/tglx/notes-about-netiquette

^ permalink raw reply	[flat|nested] 110+ messages in thread

* Re: [PATCH v9 04/28] x86/asm/entry: Annotate THUNKs
  2019-10-11 11:50 ` [PATCH v9 04/28] x86/asm/entry: Annotate THUNKs Jiri Slaby
@ 2019-10-14 13:38   ` Borislav Petkov
  2019-10-18 16:30   ` [tip: x86/asm] " tip-bot2 for Jiri Slaby
  1 sibling, 0 replies; 110+ messages in thread
From: Borislav Petkov @ 2019-10-14 13:38 UTC (permalink / raw)
  To: Jiri Slaby
  Cc: tglx, mingo, hpa, x86, linux-arch, linux-kernel, Andy Lutomirski

On Fri, Oct 11, 2019 at 01:50:44PM +0200, Jiri Slaby wrote:
> Place SYM_*_START_NOALIGN and SYM_*_END around the THUNK macro body.
> Preserve @function by FUNC (64bit) and CODE (32bit). Given it was not
> marked as aligned, use NOALIGN.

Yeah, I guess the NOALIGN is causing some relaxing of alignment because
the symbols all "move up", from looking at the addresses:

before:
$ readelf -a vmlinux | grep -E "\W(trace_hardirqs_o(n|ff)_thunk|lockdep_sys_exit_thunk|___preempt_schedule)"
 70007: ffffffff81001c60    28 FUNC    GLOBAL DEFAULT    1 trace_hardirqs_off_thunk
 78467: ffffffff81001c40    28 FUNC    GLOBAL DEFAULT    1 trace_hardirqs_on_thunk
 82067: ffffffff81001cc0    24 FUNC    GLOBAL DEFAULT    1 ___preempt_schedule_notra
 86509: ffffffff81001c80    24 FUNC    GLOBAL DEFAULT    1 lockdep_sys_exit_thunk
 87594: ffffffff81001ca0    24 FUNC    GLOBAL DEFAULT    1 ___preempt_schedule

after:
$ readelf -a vmlinux | grep -E "\W(trace_hardirqs_o(n|ff)_thunk|lockdep_sys_exit_thunk|___preempt_schedule)"
 70007: ffffffff81001c50    28 FUNC    GLOBAL DEFAULT    1 trace_hardirqs_off_thunk
 78467: ffffffff81001c34    28 FUNC    GLOBAL DEFAULT    1 trace_hardirqs_on_thunk
 82067: ffffffff81001c9c    24 FUNC    GLOBAL DEFAULT    1 ___preempt_schedule_notra
 86509: ffffffff81001c6c    24 FUNC    GLOBAL DEFAULT    1 lockdep_sys_exit_thunk
 87594: ffffffff81001c84    24 FUNC    GLOBAL DEFAULT    1 ___preempt_schedule

-- 
Regards/Gruss,
    Boris.

https://people.kernel.org/tglx/notes-about-netiquette

^ permalink raw reply	[flat|nested] 110+ messages in thread

* Re: [PATCH v9 07/28] x86/boot: Annotate local functions
  2019-10-11 11:50 ` [PATCH v9 07/28] x86/boot: " Jiri Slaby
@ 2019-10-14 14:27   ` Borislav Petkov
  2019-10-15  5:43     ` Jiri Slaby
  2019-10-18 16:30   ` [tip: x86/asm] " tip-bot2 for Jiri Slaby
  1 sibling, 1 reply; 110+ messages in thread
From: Borislav Petkov @ 2019-10-14 14:27 UTC (permalink / raw)
  To: Jiri Slaby; +Cc: tglx, mingo, hpa, x86, linux-arch, linux-kernel

On Fri, Oct 11, 2019 at 01:50:47PM +0200, Jiri Slaby wrote:
> .Lrelocated, .Lpaging_enabled, .Lno_longmode, and .Lin_pm32 are
> self-standing local functions, annotate them as such and preserve "no
> alignment".
> 
> The annotations do not generate anything yet.

So the annotation is only documentational, right?

-- 
Regards/Gruss,
    Boris.

https://people.kernel.org/tglx/notes-about-netiquette

^ permalink raw reply	[flat|nested] 110+ messages in thread

* Re: [PATCH v9 07/28] x86/boot: Annotate local functions
  2019-10-14 14:27   ` Borislav Petkov
@ 2019-10-15  5:43     ` Jiri Slaby
  0 siblings, 0 replies; 110+ messages in thread
From: Jiri Slaby @ 2019-10-15  5:43 UTC (permalink / raw)
  To: Borislav Petkov; +Cc: tglx, mingo, hpa, x86, linux-arch, linux-kernel

On 14. 10. 19, 16:27, Borislav Petkov wrote:
> On Fri, Oct 11, 2019 at 01:50:47PM +0200, Jiri Slaby wrote:
>> .Lrelocated, .Lpaging_enabled, .Lno_longmode, and .Lin_pm32 are
>> self-standing local functions, annotate them as such and preserve "no
>> alignment".
>>
>> The annotations do not generate anything yet.
> 
> So the annotation is only documentational, right?

Right.

thanks,
-- 
js
suse labs

^ permalink raw reply	[flat|nested] 110+ messages in thread

* Re: [PATCH v9 13/28] um: Annotate data appropriately
  2019-10-11 11:50 ` [PATCH v9 13/28] um: " Jiri Slaby
@ 2019-10-15 15:37   ` Richard Weinberger
  2019-10-18 16:30   ` [tip: x86/asm] x86/um: " tip-bot2 for Jiri Slaby
  1 sibling, 0 replies; 110+ messages in thread
From: Richard Weinberger @ 2019-10-15 15:37 UTC (permalink / raw)
  To: Jiri Slaby
  Cc: bp, tglx, mingo, hpa, x86, linux-arch, linux-kernel, Jeff Dike,
	user-mode-linux-devel, user-mode-linux-user

----- Ursprüngliche Mail -----
> Von: "Jiri Slaby" <jslaby@suse.cz>
> An: bp@alien8.de
> CC: tglx@linutronix.de, mingo@redhat.com, hpa@zytor.com, x86@kernel.org, linux-arch@vger.kernel.org, "linux-kernel"
> <linux-kernel@vger.kernel.org>, "Jiri Slaby" <jslaby@suse.cz>, "Jeff Dike" <jdike@addtoit.com>, "richard"
> <richard@nod.at>, user-mode-linux-devel@lists.sourceforge.net, user-mode-linux-user@lists.sourceforge.net
> Gesendet: Freitag, 11. Oktober 2019 13:50:53
> Betreff: [PATCH v9 13/28] um: Annotate data appropriately

> Use the new SYM_DATA_START and SYM_DATA_END_LABEL macros for vdso_start.
> 
> We get:
>  0000  2376 OBJECT  GLOBAL DEFAULT    4 vdso_start
>  0948     0 OBJECT  GLOBAL DEFAULT    4 vdso_end
> 
> Signed-off-by: Jiri Slaby <jslaby@suse.cz>
> Cc: Jeff Dike <jdike@addtoit.com>
> Cc: Richard Weinberger <richard@nod.at>
> Cc: Borislav Petkov <bp@alien8.de>
> Cc: Thomas Gleixner <tglx@linutronix.de>
> Cc: Ingo Molnar <mingo@redhat.com>
> Cc: "H. Peter Anvin" <hpa@zytor.com>
> Cc: x86@kernel.org
> Cc: user-mode-linux-devel@lists.sourceforge.net
> Cc: user-mode-linux-user@lists.sourceforge.net
> ---
> arch/x86/um/vdso/vdso.S | 6 +++---
> 1 file changed, 3 insertions(+), 3 deletions(-)
> 
> diff --git a/arch/x86/um/vdso/vdso.S b/arch/x86/um/vdso/vdso.S
> index a4a3870dc059..a6eaf293a73b 100644
> --- a/arch/x86/um/vdso/vdso.S
> +++ b/arch/x86/um/vdso/vdso.S
> @@ -1,11 +1,11 @@
> /* SPDX-License-Identifier: GPL-2.0 */
> #include <linux/init.h>
> +#include <linux/linkage.h>
> 
> __INITDATA
> 
> -	.globl vdso_start, vdso_end
> -vdso_start:
> +SYM_DATA_START(vdso_start)
> 	.incbin "arch/x86/um/vdso/vdso.so"
> -vdso_end:
> +SYM_DATA_END_LABEL(vdso_start, SYM_L_GLOBAL, vdso_end)

Acked-by: Richard Weinberger <richard@nod.at>

Thanks,
//richard

^ permalink raw reply	[flat|nested] 110+ messages in thread

* Re: [PATCH v9 15/28] x86/asm/purgatory: Start using annotations
  2019-10-11 11:50 ` [PATCH v9 15/28] x86/asm/purgatory: Start using annotations Jiri Slaby
@ 2019-10-15 17:03   ` Borislav Petkov
  2019-10-18 16:30   ` [tip: x86/asm] " tip-bot2 for Jiri Slaby
  1 sibling, 0 replies; 110+ messages in thread
From: Borislav Petkov @ 2019-10-15 17:03 UTC (permalink / raw)
  To: Jiri Slaby; +Cc: tglx, mingo, hpa, x86, linux-arch, linux-kernel

On Fri, Oct 11, 2019 at 01:50:55PM +0200, Jiri Slaby wrote:
> Purgatory used no annotations at all. So include linux/linkage.h and
> annotate everything:
> * code by SYM_CODE_*
> * data by SYM_DATA_*
> 
> Signed-off-by: Jiri Slaby <jslaby@suse.cz>
> Cc: Borislav Petkov <bp@alien8.de>
> Cc: Thomas Gleixner <tglx@linutronix.de>
> Cc: Ingo Molnar <mingo@redhat.com>
> Cc: "H. Peter Anvin" <hpa@zytor.com>
> Cc: x86@kernel.org
> ---
>  arch/x86/purgatory/entry64.S      | 21 ++++++++++++---------
>  arch/x86/purgatory/setup-x86_64.S | 14 ++++++++------
>  arch/x86/purgatory/stack.S        |  7 ++++---
>  3 files changed, 24 insertions(+), 18 deletions(-)

...

> @@ -75,12 +76,12 @@ r13:	.quad 0x0
>  r14:	.quad 0x0
>  r15:	.quad 0x0
>  rip:	.quad 0x0
> -	.size entry64_regs, . - entry64_regs
> +SYM_DATA_END(entry64_regs)
>  
>  	/* GDT */
>  	.section ".rodata"
>  	.balign 16
> -gdt:
> +SYM_DATA_START_LOCAL(gdt)
>  	/* 0x00 unusable segment

Note for the applier: Fixup that comment:

	/*
	 * 0x00 ...
	 * ...

>  	 * 0x08 unused
>  	 * so use them as gdt ptr

-- 
Regards/Gruss,
    Boris.

https://people.kernel.org/tglx/notes-about-netiquette

^ permalink raw reply	[flat|nested] 110+ messages in thread

* Re: [PATCH v9 17/28] x86/asm: Use SYM_INNER_LABEL instead of GLOBAL
  2019-10-11 11:50 ` [PATCH v9 17/28] x86/asm: Use SYM_INNER_LABEL instead of GLOBAL Jiri Slaby
@ 2019-10-15 17:31   ` Borislav Petkov
  2019-10-18 16:30   ` [tip: x86/asm] " tip-bot2 for Jiri Slaby
  1 sibling, 0 replies; 110+ messages in thread
From: Borislav Petkov @ 2019-10-15 17:31 UTC (permalink / raw)
  To: Jiri Slaby
  Cc: tglx, mingo, hpa, x86, linux-arch, linux-kernel, Andy Lutomirski

On Fri, Oct 11, 2019 at 01:50:57PM +0200, Jiri Slaby wrote:
> The GLOBAL macro had several meanings and is going away. In this patch,
> convert all the inner function labels marked with GLOBAL to use
> SYM_INNER_LABEL instead.
> 
> Signed-off-by: Jiri Slaby <jslaby@suse.cz>
> Cc: Borislav Petkov <bp@alien8.de>
> Cc: Thomas Gleixner <tglx@linutronix.de>
> Cc: Ingo Molnar <mingo@redhat.com>
> Cc: "H. Peter Anvin" <hpa@zytor.com>
> Cc: x86@kernel.org
> Cc: Andy Lutomirski <luto@amacapital.net>
> ---
>  arch/x86/entry/entry_64.S                |  6 +++---
>  arch/x86/entry/entry_64_compat.S         |  4 ++--
>  arch/x86/entry/vdso/vdso32/system_call.S |  2 +-
>  arch/x86/kernel/ftrace_32.S              |  2 +-
>  arch/x86/kernel/ftrace_64.S              | 16 ++++++++--------
>  arch/x86/realmode/rm/reboot.S            |  2 +-
>  6 files changed, 16 insertions(+), 16 deletions(-)
> 
> diff --git a/arch/x86/entry/entry_64.S b/arch/x86/entry/entry_64.S
> index 607e25f54ff4..57d246048ac6 100644
> --- a/arch/x86/entry/entry_64.S
> +++ b/arch/x86/entry/entry_64.S
> @@ -162,7 +162,7 @@ ENTRY(entry_SYSCALL_64)
>  	pushq	%r11					/* pt_regs->flags */
>  	pushq	$__USER_CS				/* pt_regs->cs */
>  	pushq	%rcx					/* pt_regs->ip */
> -GLOBAL(entry_SYSCALL_64_after_hwframe)
> +SYM_INNER_LABEL(entry_SYSCALL_64_after_hwframe, SYM_L_GLOBAL)
>  	pushq	%rax					/* pt_regs->orig_ax */
>  
>  	PUSH_AND_CLEAR_REGS rax=$-ENOSYS
> @@ -621,7 +621,7 @@ ret_from_intr:
>  	call	prepare_exit_to_usermode
>  	TRACE_IRQS_IRETQ
>  
> -GLOBAL(swapgs_restore_regs_and_return_to_usermode)
> +SYM_INNER_LABEL(swapgs_restore_regs_and_return_to_usermode, SYM_L_GLOBAL)
>  #ifdef CONFIG_DEBUG_ENTRY
>  	/* Assert that pt_regs indicates user mode. */
>  	testb	$3, CS(%rsp)
> @@ -679,7 +679,7 @@ retint_kernel:
>  	 */
>  	TRACE_IRQS_IRETQ
>  
> -GLOBAL(restore_regs_and_return_to_kernel)
> +SYM_INNER_LABEL(restore_regs_and_return_to_kernel, SYM_L_GLOBAL)
>  #ifdef CONFIG_DEBUG_ENTRY
>  	/* Assert that pt_regs indicates kernel mode. */
>  	testb	$3, CS(%rsp)

Do this too, while at it?

diff --git a/arch/x86/entry/entry_64.S b/arch/x86/entry/entry_64.S
index 57d246048ac6..e73369858556 100644
--- a/arch/x86/entry/entry_64.S
+++ b/arch/x86/entry/entry_64.S
@@ -247,7 +247,7 @@ SYM_INNER_LABEL(entry_SYSCALL_64_after_hwframe, SYM_L_GLOBAL)
 	 * We win! This label is here just for ease of understanding
 	 * perf profiles. Nothing jumps here.
 	 */
-syscall_return_via_sysret:
+SYM_INNER_LABEL(syscall_return_via_sysret, SYM_L_GLOBAL)
 	/* rcx and r11 are already restored (see code above) */
 	UNWIND_HINT_EMPTY
 	POP_REGS pop_rdi=0 skip_r11rcx=1

-- 
Regards/Gruss,
    Boris.

https://people.kernel.org/tglx/notes-about-netiquette

^ permalink raw reply related	[flat|nested] 110+ messages in thread

* Re: [PATCH v9 24/28] x86_64/asm: Change all ENTRY+ENDPROC to SYM_FUNC_*
  2019-10-11 11:51   ` [Xen-devel] " Jiri Slaby
  (?)
  (?)
@ 2019-10-16  7:12     ` Borislav Petkov
  -1 siblings, 0 replies; 110+ messages in thread
From: Borislav Petkov @ 2019-10-16  7:12 UTC (permalink / raw)
  To: Herbert Xu, David S. Miller
  Cc: Jiri Slaby, tglx, mingo, hpa, x86, linux-arch, linux-kernel,
	Rafael J . Wysocki, Boris Ostrovsky, Herbert Xu, David S. Miller,
	Rafael J. Wysocki, Len Brown, Pavel Machek, Matt Fleming,
	Ard Biesheuvel, Juergen Gross, linux-crypto, linux-pm, linux-efi,
	xen-devel

Hi,

On Fri, Oct 11, 2019 at 01:51:04PM +0200, Jiri Slaby wrote:
> These are all functions which are invoked from elsewhere, so annotate
> them as global using the new SYM_FUNC_START. And their ENDPROC's by
> SYM_FUNC_END.
> 
> And make sure ENTRY/ENDPROC is not defined on X86_64, given these were
> the last users.
> 
> Signed-off-by: Jiri Slaby <jslaby@suse.cz>
> Reviewed-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> [hibernate]
> Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> [xen bits]
> Cc: "H. Peter Anvin" <hpa@zytor.com>
> Cc: Borislav Petkov <bp@alien8.de>
> Cc: Thomas Gleixner <tglx@linutronix.de>
> Cc: Ingo Molnar <mingo@redhat.com>
> Cc: x86@kernel.org
> Cc: Herbert Xu <herbert@gondor.apana.org.au>
> Cc: "David S. Miller" <davem@davemloft.net>
> Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>
> Cc: Len Brown <len.brown@intel.com>
> Cc: Pavel Machek <pavel@ucw.cz>
> Cc: Matt Fleming <matt@codeblueprint.co.uk>
> Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
> Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
> Cc: Juergen Gross <jgross@suse.com>
> Cc: linux-crypto@vger.kernel.org
> Cc: linux-pm@vger.kernel.org
> Cc: linux-efi@vger.kernel.org
> Cc: xen-devel@lists.xenproject.org
> ---
>  arch/x86/boot/compressed/efi_thunk_64.S      |  4 +-
>  arch/x86/boot/compressed/head_64.S           | 16 +++---
>  arch/x86/boot/compressed/mem_encrypt.S       |  8 +--
>  arch/x86/crypto/aegis128-aesni-asm.S         | 28 ++++-----
>  arch/x86/crypto/aes_ctrby8_avx-x86_64.S      | 12 ++--
>  arch/x86/crypto/aesni-intel_asm.S            | 60 ++++++++++----------
>  arch/x86/crypto/aesni-intel_avx-x86_64.S     | 32 +++++------
>  arch/x86/crypto/blowfish-x86_64-asm_64.S     | 16 +++---
>  arch/x86/crypto/camellia-aesni-avx-asm_64.S  | 24 ++++----
>  arch/x86/crypto/camellia-aesni-avx2-asm_64.S | 24 ++++----
>  arch/x86/crypto/camellia-x86_64-asm_64.S     | 16 +++---
>  arch/x86/crypto/cast5-avx-x86_64-asm_64.S    | 16 +++---
>  arch/x86/crypto/cast6-avx-x86_64-asm_64.S    | 24 ++++----
>  arch/x86/crypto/chacha-avx2-x86_64.S         | 12 ++--
>  arch/x86/crypto/chacha-avx512vl-x86_64.S     | 12 ++--
>  arch/x86/crypto/chacha-ssse3-x86_64.S        | 12 ++--
>  arch/x86/crypto/crc32-pclmul_asm.S           |  4 +-
>  arch/x86/crypto/crc32c-pcl-intel-asm_64.S    |  4 +-
>  arch/x86/crypto/crct10dif-pcl-asm_64.S       |  4 +-
>  arch/x86/crypto/des3_ede-asm_64.S            |  8 +--
>  arch/x86/crypto/ghash-clmulni-intel_asm.S    |  8 +--
>  arch/x86/crypto/nh-avx2-x86_64.S             |  4 +-
>  arch/x86/crypto/nh-sse2-x86_64.S             |  4 +-
>  arch/x86/crypto/poly1305-avx2-x86_64.S       |  4 +-
>  arch/x86/crypto/poly1305-sse2-x86_64.S       |  8 +--
>  arch/x86/crypto/serpent-avx-x86_64-asm_64.S  | 24 ++++----
>  arch/x86/crypto/serpent-avx2-asm_64.S        | 24 ++++----
>  arch/x86/crypto/serpent-sse2-x86_64-asm_64.S |  8 +--
>  arch/x86/crypto/sha1_avx2_x86_64_asm.S       |  4 +-
>  arch/x86/crypto/sha1_ni_asm.S                |  4 +-
>  arch/x86/crypto/sha1_ssse3_asm.S             |  4 +-
>  arch/x86/crypto/sha256-avx-asm.S             |  4 +-
>  arch/x86/crypto/sha256-avx2-asm.S            |  4 +-
>  arch/x86/crypto/sha256-ssse3-asm.S           |  4 +-
>  arch/x86/crypto/sha256_ni_asm.S              |  4 +-
>  arch/x86/crypto/sha512-avx-asm.S             |  4 +-
>  arch/x86/crypto/sha512-avx2-asm.S            |  4 +-
>  arch/x86/crypto/sha512-ssse3-asm.S           |  4 +-
>  arch/x86/crypto/twofish-avx-x86_64-asm_64.S  | 24 ++++----
>  arch/x86/crypto/twofish-x86_64-asm_64-3way.S |  8 +--
>  arch/x86/crypto/twofish-x86_64-asm_64.S      |  8 +--

I could use an ACK for the crypto bits...

Thx.

-- 
Regards/Gruss,
    Boris.

https://people.kernel.org/tglx/notes-about-netiquette

^ permalink raw reply	[flat|nested] 110+ messages in thread

* Re: [PATCH v9 24/28] x86_64/asm: Change all ENTRY+ENDPROC to SYM_FUNC_*
@ 2019-10-16  7:12     ` Borislav Petkov
  0 siblings, 0 replies; 110+ messages in thread
From: Borislav Petkov @ 2019-10-16  7:12 UTC (permalink / raw)
  Cc: Jiri Slaby, tglx, mingo, hpa, x86, linux-arch, linux-kernel,
	Rafael J . Wysocki, Boris Ostrovsky, Herbert Xu, David S. Miller,
	Rafael J. Wysocki, Len Brown, Pavel Machek, Matt Fleming,
	Ard Biesheuvel, Juergen Gross, linux-crypto, linux-pm, linux-efi,
	xen-devel

Hi,

On Fri, Oct 11, 2019 at 01:51:04PM +0200, Jiri Slaby wrote:
> These are all functions which are invoked from elsewhere, so annotate
> them as global using the new SYM_FUNC_START. And their ENDPROC's by
> SYM_FUNC_END.
> 
> And make sure ENTRY/ENDPROC is not defined on X86_64, given these were
> the last users.
> 
> Signed-off-by: Jiri Slaby <jslaby@suse.cz>
> Reviewed-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> [hibernate]
> Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> [xen bits]
> Cc: "H. Peter Anvin" <hpa@zytor.com>
> Cc: Borislav Petkov <bp@alien8.de>
> Cc: Thomas Gleixner <tglx@linutronix.de>
> Cc: Ingo Molnar <mingo@redhat.com>
> Cc: x86@kernel.org
> Cc: Herbert Xu <herbert@gondor.apana.org.au>
> Cc: "David S. Miller" <davem@davemloft.net>
> Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>
> Cc: Len Brown <len.brown@intel.com>
> Cc: Pavel Machek <pavel@ucw.cz>
> Cc: Matt Fleming <matt@codeblueprint.co.uk>
> Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
> Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
> Cc: Juergen Gross <jgross@suse.com>
> Cc: linux-crypto@vger.kernel.org
> Cc: linux-pm@vger.kernel.org
> Cc: linux-efi@vger.kernel.org
> Cc: xen-devel@lists.xenproject.org
> ---
>  arch/x86/boot/compressed/efi_thunk_64.S      |  4 +-
>  arch/x86/boot/compressed/head_64.S           | 16 +++---
>  arch/x86/boot/compressed/mem_encrypt.S       |  8 +--
>  arch/x86/crypto/aegis128-aesni-asm.S         | 28 ++++-----
>  arch/x86/crypto/aes_ctrby8_avx-x86_64.S      | 12 ++--
>  arch/x86/crypto/aesni-intel_asm.S            | 60 ++++++++++----------
>  arch/x86/crypto/aesni-intel_avx-x86_64.S     | 32 +++++------
>  arch/x86/crypto/blowfish-x86_64-asm_64.S     | 16 +++---
>  arch/x86/crypto/camellia-aesni-avx-asm_64.S  | 24 ++++----
>  arch/x86/crypto/camellia-aesni-avx2-asm_64.S | 24 ++++----
>  arch/x86/crypto/camellia-x86_64-asm_64.S     | 16 +++---
>  arch/x86/crypto/cast5-avx-x86_64-asm_64.S    | 16 +++---
>  arch/x86/crypto/cast6-avx-x86_64-asm_64.S    | 24 ++++----
>  arch/x86/crypto/chacha-avx2-x86_64.S         | 12 ++--
>  arch/x86/crypto/chacha-avx512vl-x86_64.S     | 12 ++--
>  arch/x86/crypto/chacha-ssse3-x86_64.S        | 12 ++--
>  arch/x86/crypto/crc32-pclmul_asm.S           |  4 +-
>  arch/x86/crypto/crc32c-pcl-intel-asm_64.S    |  4 +-
>  arch/x86/crypto/crct10dif-pcl-asm_64.S       |  4 +-
>  arch/x86/crypto/des3_ede-asm_64.S            |  8 +--
>  arch/x86/crypto/ghash-clmulni-intel_asm.S    |  8 +--
>  arch/x86/crypto/nh-avx2-x86_64.S             |  4 +-
>  arch/x86/crypto/nh-sse2-x86_64.S             |  4 +-
>  arch/x86/crypto/poly1305-avx2-x86_64.S       |  4 +-
>  arch/x86/crypto/poly1305-sse2-x86_64.S       |  8 +--
>  arch/x86/crypto/serpent-avx-x86_64-asm_64.S  | 24 ++++----
>  arch/x86/crypto/serpent-avx2-asm_64.S        | 24 ++++----
>  arch/x86/crypto/serpent-sse2-x86_64-asm_64.S |  8 +--
>  arch/x86/crypto/sha1_avx2_x86_64_asm.S       |  4 +-
>  arch/x86/crypto/sha1_ni_asm.S                |  4 +-
>  arch/x86/crypto/sha1_ssse3_asm.S             |  4 +-
>  arch/x86/crypto/sha256-avx-asm.S             |  4 +-
>  arch/x86/crypto/sha256-avx2-asm.S            |  4 +-
>  arch/x86/crypto/sha256-ssse3-asm.S           |  4 +-
>  arch/x86/crypto/sha256_ni_asm.S              |  4 +-
>  arch/x86/crypto/sha512-avx-asm.S             |  4 +-
>  arch/x86/crypto/sha512-avx2-asm.S            |  4 +-
>  arch/x86/crypto/sha512-ssse3-asm.S           |  4 +-
>  arch/x86/crypto/twofish-avx-x86_64-asm_64.S  | 24 ++++----
>  arch/x86/crypto/twofish-x86_64-asm_64-3way.S |  8 +--
>  arch/x86/crypto/twofish-x86_64-asm_64.S      |  8 +--

I could use an ACK for the crypto bits...

Thx.

-- 
Regards/Gruss,
    Boris.

https://people.kernel.org/tglx/notes-about-netiquette

^ permalink raw reply	[flat|nested] 110+ messages in thread

* Re: [PATCH v9 24/28] x86_64/asm: Change all ENTRY+ENDPROC to SYM_FUNC_*
@ 2019-10-16  7:12     ` Borislav Petkov
  0 siblings, 0 replies; 110+ messages in thread
From: Borislav Petkov @ 2019-10-16  7:12 UTC (permalink / raw)
  To: Herbert Xu, David S. Miller
  Cc: Jiri Slaby, tglx, mingo, hpa, x86, linux-arch, linux-kernel,
	Rafael J . Wysocki, Boris Ostrovsky, Rafael J. Wysocki,
	Len Brown, Pavel Machek, Matt Fleming, Ard Biesheuvel,
	Juergen Gross, linux-crypto, linux-pm, linux-efi, xen-devel

Hi,

On Fri, Oct 11, 2019 at 01:51:04PM +0200, Jiri Slaby wrote:
> These are all functions which are invoked from elsewhere, so annotate
> them as global using the new SYM_FUNC_START. And their ENDPROC's by
> SYM_FUNC_END.
> 
> And make sure ENTRY/ENDPROC is not defined on X86_64, given these were
> the last users.
> 
> Signed-off-by: Jiri Slaby <jslaby@suse.cz>
> Reviewed-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> [hibernate]
> Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> [xen bits]
> Cc: "H. Peter Anvin" <hpa@zytor.com>
> Cc: Borislav Petkov <bp@alien8.de>
> Cc: Thomas Gleixner <tglx@linutronix.de>
> Cc: Ingo Molnar <mingo@redhat.com>
> Cc: x86@kernel.org
> Cc: Herbert Xu <herbert@gondor.apana.org.au>
> Cc: "David S. Miller" <davem@davemloft.net>
> Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>
> Cc: Len Brown <len.brown@intel.com>
> Cc: Pavel Machek <pavel@ucw.cz>
> Cc: Matt Fleming <matt@codeblueprint.co.uk>
> Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
> Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
> Cc: Juergen Gross <jgross@suse.com>
> Cc: linux-crypto@vger.kernel.org
> Cc: linux-pm@vger.kernel.org
> Cc: linux-efi@vger.kernel.org
> Cc: xen-devel@lists.xenproject.org
> ---
>  arch/x86/boot/compressed/efi_thunk_64.S      |  4 +-
>  arch/x86/boot/compressed/head_64.S           | 16 +++---
>  arch/x86/boot/compressed/mem_encrypt.S       |  8 +--
>  arch/x86/crypto/aegis128-aesni-asm.S         | 28 ++++-----
>  arch/x86/crypto/aes_ctrby8_avx-x86_64.S      | 12 ++--
>  arch/x86/crypto/aesni-intel_asm.S            | 60 ++++++++++----------
>  arch/x86/crypto/aesni-intel_avx-x86_64.S     | 32 +++++------
>  arch/x86/crypto/blowfish-x86_64-asm_64.S     | 16 +++---
>  arch/x86/crypto/camellia-aesni-avx-asm_64.S  | 24 ++++----
>  arch/x86/crypto/camellia-aesni-avx2-asm_64.S | 24 ++++----
>  arch/x86/crypto/camellia-x86_64-asm_64.S     | 16 +++---
>  arch/x86/crypto/cast5-avx-x86_64-asm_64.S    | 16 +++---
>  arch/x86/crypto/cast6-avx-x86_64-asm_64.S    | 24 ++++----
>  arch/x86/crypto/chacha-avx2-x86_64.S         | 12 ++--
>  arch/x86/crypto/chacha-avx512vl-x86_64.S     | 12 ++--
>  arch/x86/crypto/chacha-ssse3-x86_64.S        | 12 ++--
>  arch/x86/crypto/crc32-pclmul_asm.S           |  4 +-
>  arch/x86/crypto/crc32c-pcl-intel-asm_64.S    |  4 +-
>  arch/x86/crypto/crct10dif-pcl-asm_64.S       |  4 +-
>  arch/x86/crypto/des3_ede-asm_64.S            |  8 +--
>  arch/x86/crypto/ghash-clmulni-intel_asm.S    |  8 +--
>  arch/x86/crypto/nh-avx2-x86_64.S             |  4 +-
>  arch/x86/crypto/nh-sse2-x86_64.S             |  4 +-
>  arch/x86/crypto/poly1305-avx2-x86_64.S       |  4 +-
>  arch/x86/crypto/poly1305-sse2-x86_64.S       |  8 +--
>  arch/x86/crypto/serpent-avx-x86_64-asm_64.S  | 24 ++++----
>  arch/x86/crypto/serpent-avx2-asm_64.S        | 24 ++++----
>  arch/x86/crypto/serpent-sse2-x86_64-asm_64.S |  8 +--
>  arch/x86/crypto/sha1_avx2_x86_64_asm.S       |  4 +-
>  arch/x86/crypto/sha1_ni_asm.S                |  4 +-
>  arch/x86/crypto/sha1_ssse3_asm.S             |  4 +-
>  arch/x86/crypto/sha256-avx-asm.S             |  4 +-
>  arch/x86/crypto/sha256-avx2-asm.S            |  4 +-
>  arch/x86/crypto/sha256-ssse3-asm.S           |  4 +-
>  arch/x86/crypto/sha256_ni_asm.S              |  4 +-
>  arch/x86/crypto/sha512-avx-asm.S             |  4 +-
>  arch/x86/crypto/sha512-avx2-asm.S            |  4 +-
>  arch/x86/crypto/sha512-ssse3-asm.S           |  4 +-
>  arch/x86/crypto/twofish-avx-x86_64-asm_64.S  | 24 ++++----
>  arch/x86/crypto/twofish-x86_64-asm_64-3way.S |  8 +--
>  arch/x86/crypto/twofish-x86_64-asm_64.S      |  8 +--

I could use an ACK for the crypto bits...

Thx.

-- 
Regards/Gruss,
    Boris.

https://people.kernel.org/tglx/notes-about-netiquette

^ permalink raw reply	[flat|nested] 110+ messages in thread

* Re: [Xen-devel] [PATCH v9 24/28] x86_64/asm: Change all ENTRY+ENDPROC to SYM_FUNC_*
@ 2019-10-16  7:12     ` Borislav Petkov
  0 siblings, 0 replies; 110+ messages in thread
From: Borislav Petkov @ 2019-10-16  7:12 UTC (permalink / raw)
  To: Herbert Xu, David S. Miller
  Cc: linux-arch, Len Brown, linux-efi, Rafael J . Wysocki, Herbert Xu,
	Ard Biesheuvel, Matt Fleming, linux-pm, x86, Rafael J. Wysocki,
	linux-kernel, David S. Miller, Juergen Gross, mingo,
	linux-crypto, Pavel Machek, hpa, xen-devel, tglx, Jiri Slaby,
	Boris Ostrovsky

Hi,

On Fri, Oct 11, 2019 at 01:51:04PM +0200, Jiri Slaby wrote:
> These are all functions which are invoked from elsewhere, so annotate
> them as global using the new SYM_FUNC_START. And their ENDPROC's by
> SYM_FUNC_END.
> 
> And make sure ENTRY/ENDPROC is not defined on X86_64, given these were
> the last users.
> 
> Signed-off-by: Jiri Slaby <jslaby@suse.cz>
> Reviewed-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> [hibernate]
> Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> [xen bits]
> Cc: "H. Peter Anvin" <hpa@zytor.com>
> Cc: Borislav Petkov <bp@alien8.de>
> Cc: Thomas Gleixner <tglx@linutronix.de>
> Cc: Ingo Molnar <mingo@redhat.com>
> Cc: x86@kernel.org
> Cc: Herbert Xu <herbert@gondor.apana.org.au>
> Cc: "David S. Miller" <davem@davemloft.net>
> Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>
> Cc: Len Brown <len.brown@intel.com>
> Cc: Pavel Machek <pavel@ucw.cz>
> Cc: Matt Fleming <matt@codeblueprint.co.uk>
> Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
> Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
> Cc: Juergen Gross <jgross@suse.com>
> Cc: linux-crypto@vger.kernel.org
> Cc: linux-pm@vger.kernel.org
> Cc: linux-efi@vger.kernel.org
> Cc: xen-devel@lists.xenproject.org
> ---
>  arch/x86/boot/compressed/efi_thunk_64.S      |  4 +-
>  arch/x86/boot/compressed/head_64.S           | 16 +++---
>  arch/x86/boot/compressed/mem_encrypt.S       |  8 +--
>  arch/x86/crypto/aegis128-aesni-asm.S         | 28 ++++-----
>  arch/x86/crypto/aes_ctrby8_avx-x86_64.S      | 12 ++--
>  arch/x86/crypto/aesni-intel_asm.S            | 60 ++++++++++----------
>  arch/x86/crypto/aesni-intel_avx-x86_64.S     | 32 +++++------
>  arch/x86/crypto/blowfish-x86_64-asm_64.S     | 16 +++---
>  arch/x86/crypto/camellia-aesni-avx-asm_64.S  | 24 ++++----
>  arch/x86/crypto/camellia-aesni-avx2-asm_64.S | 24 ++++----
>  arch/x86/crypto/camellia-x86_64-asm_64.S     | 16 +++---
>  arch/x86/crypto/cast5-avx-x86_64-asm_64.S    | 16 +++---
>  arch/x86/crypto/cast6-avx-x86_64-asm_64.S    | 24 ++++----
>  arch/x86/crypto/chacha-avx2-x86_64.S         | 12 ++--
>  arch/x86/crypto/chacha-avx512vl-x86_64.S     | 12 ++--
>  arch/x86/crypto/chacha-ssse3-x86_64.S        | 12 ++--
>  arch/x86/crypto/crc32-pclmul_asm.S           |  4 +-
>  arch/x86/crypto/crc32c-pcl-intel-asm_64.S    |  4 +-
>  arch/x86/crypto/crct10dif-pcl-asm_64.S       |  4 +-
>  arch/x86/crypto/des3_ede-asm_64.S            |  8 +--
>  arch/x86/crypto/ghash-clmulni-intel_asm.S    |  8 +--
>  arch/x86/crypto/nh-avx2-x86_64.S             |  4 +-
>  arch/x86/crypto/nh-sse2-x86_64.S             |  4 +-
>  arch/x86/crypto/poly1305-avx2-x86_64.S       |  4 +-
>  arch/x86/crypto/poly1305-sse2-x86_64.S       |  8 +--
>  arch/x86/crypto/serpent-avx-x86_64-asm_64.S  | 24 ++++----
>  arch/x86/crypto/serpent-avx2-asm_64.S        | 24 ++++----
>  arch/x86/crypto/serpent-sse2-x86_64-asm_64.S |  8 +--
>  arch/x86/crypto/sha1_avx2_x86_64_asm.S       |  4 +-
>  arch/x86/crypto/sha1_ni_asm.S                |  4 +-
>  arch/x86/crypto/sha1_ssse3_asm.S             |  4 +-
>  arch/x86/crypto/sha256-avx-asm.S             |  4 +-
>  arch/x86/crypto/sha256-avx2-asm.S            |  4 +-
>  arch/x86/crypto/sha256-ssse3-asm.S           |  4 +-
>  arch/x86/crypto/sha256_ni_asm.S              |  4 +-
>  arch/x86/crypto/sha512-avx-asm.S             |  4 +-
>  arch/x86/crypto/sha512-avx2-asm.S            |  4 +-
>  arch/x86/crypto/sha512-ssse3-asm.S           |  4 +-
>  arch/x86/crypto/twofish-avx-x86_64-asm_64.S  | 24 ++++----
>  arch/x86/crypto/twofish-x86_64-asm_64-3way.S |  8 +--
>  arch/x86/crypto/twofish-x86_64-asm_64.S      |  8 +--

I could use an ACK for the crypto bits...

Thx.

-- 
Regards/Gruss,
    Boris.

https://people.kernel.org/tglx/notes-about-netiquette

_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xenproject.org
https://lists.xenproject.org/mailman/listinfo/xen-devel

^ permalink raw reply	[flat|nested] 110+ messages in thread

* Re: [PATCH v9 24/28] x86_64/asm: Change all ENTRY+ENDPROC to SYM_FUNC_*
  2019-10-16  7:12     ` Borislav Petkov
@ 2019-10-18  6:56       ` Herbert Xu
  -1 siblings, 0 replies; 110+ messages in thread
From: Herbert Xu @ 2019-10-18  6:56 UTC (permalink / raw)
  To: Borislav Petkov
  Cc: David S. Miller, Jiri Slaby, tglx, mingo, hpa, x86, linux-arch,
	linux-kernel, Rafael J . Wysocki, Boris Ostrovsky,
	Rafael J. Wysocki, Len Brown, Pavel Machek, Matt Fleming,
	Ard Biesheuvel, Juergen Gross, linux-crypto, linux-pm, linux-efi,
	xen-devel

On Wed, Oct 16, 2019 at 09:12:30AM +0200, Borislav Petkov wrote:
> Hi,
> 
> On Fri, Oct 11, 2019 at 01:51:04PM +0200, Jiri Slaby wrote:
> > These are all functions which are invoked from elsewhere, so annotate
> > them as global using the new SYM_FUNC_START. And their ENDPROC's by
> > SYM_FUNC_END.
> > 
> > And make sure ENTRY/ENDPROC is not defined on X86_64, given these were
> > the last users.
> > 
> > Signed-off-by: Jiri Slaby <jslaby@suse.cz>
> > Reviewed-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> [hibernate]
> > Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> [xen bits]
> > Cc: "H. Peter Anvin" <hpa@zytor.com>
> > Cc: Borislav Petkov <bp@alien8.de>
> > Cc: Thomas Gleixner <tglx@linutronix.de>
> > Cc: Ingo Molnar <mingo@redhat.com>
> > Cc: x86@kernel.org
> > Cc: Herbert Xu <herbert@gondor.apana.org.au>
> > Cc: "David S. Miller" <davem@davemloft.net>
> > Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>
> > Cc: Len Brown <len.brown@intel.com>
> > Cc: Pavel Machek <pavel@ucw.cz>
> > Cc: Matt Fleming <matt@codeblueprint.co.uk>
> > Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
> > Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
> > Cc: Juergen Gross <jgross@suse.com>
> > Cc: linux-crypto@vger.kernel.org
> > Cc: linux-pm@vger.kernel.org
> > Cc: linux-efi@vger.kernel.org
> > Cc: xen-devel@lists.xenproject.org
> > ---
> >  arch/x86/boot/compressed/efi_thunk_64.S      |  4 +-
> >  arch/x86/boot/compressed/head_64.S           | 16 +++---
> >  arch/x86/boot/compressed/mem_encrypt.S       |  8 +--
> >  arch/x86/crypto/aegis128-aesni-asm.S         | 28 ++++-----
> >  arch/x86/crypto/aes_ctrby8_avx-x86_64.S      | 12 ++--
> >  arch/x86/crypto/aesni-intel_asm.S            | 60 ++++++++++----------
> >  arch/x86/crypto/aesni-intel_avx-x86_64.S     | 32 +++++------
> >  arch/x86/crypto/blowfish-x86_64-asm_64.S     | 16 +++---
> >  arch/x86/crypto/camellia-aesni-avx-asm_64.S  | 24 ++++----
> >  arch/x86/crypto/camellia-aesni-avx2-asm_64.S | 24 ++++----
> >  arch/x86/crypto/camellia-x86_64-asm_64.S     | 16 +++---
> >  arch/x86/crypto/cast5-avx-x86_64-asm_64.S    | 16 +++---
> >  arch/x86/crypto/cast6-avx-x86_64-asm_64.S    | 24 ++++----
> >  arch/x86/crypto/chacha-avx2-x86_64.S         | 12 ++--
> >  arch/x86/crypto/chacha-avx512vl-x86_64.S     | 12 ++--
> >  arch/x86/crypto/chacha-ssse3-x86_64.S        | 12 ++--
> >  arch/x86/crypto/crc32-pclmul_asm.S           |  4 +-
> >  arch/x86/crypto/crc32c-pcl-intel-asm_64.S    |  4 +-
> >  arch/x86/crypto/crct10dif-pcl-asm_64.S       |  4 +-
> >  arch/x86/crypto/des3_ede-asm_64.S            |  8 +--
> >  arch/x86/crypto/ghash-clmulni-intel_asm.S    |  8 +--
> >  arch/x86/crypto/nh-avx2-x86_64.S             |  4 +-
> >  arch/x86/crypto/nh-sse2-x86_64.S             |  4 +-
> >  arch/x86/crypto/poly1305-avx2-x86_64.S       |  4 +-
> >  arch/x86/crypto/poly1305-sse2-x86_64.S       |  8 +--
> >  arch/x86/crypto/serpent-avx-x86_64-asm_64.S  | 24 ++++----
> >  arch/x86/crypto/serpent-avx2-asm_64.S        | 24 ++++----
> >  arch/x86/crypto/serpent-sse2-x86_64-asm_64.S |  8 +--
> >  arch/x86/crypto/sha1_avx2_x86_64_asm.S       |  4 +-
> >  arch/x86/crypto/sha1_ni_asm.S                |  4 +-
> >  arch/x86/crypto/sha1_ssse3_asm.S             |  4 +-
> >  arch/x86/crypto/sha256-avx-asm.S             |  4 +-
> >  arch/x86/crypto/sha256-avx2-asm.S            |  4 +-
> >  arch/x86/crypto/sha256-ssse3-asm.S           |  4 +-
> >  arch/x86/crypto/sha256_ni_asm.S              |  4 +-
> >  arch/x86/crypto/sha512-avx-asm.S             |  4 +-
> >  arch/x86/crypto/sha512-avx2-asm.S            |  4 +-
> >  arch/x86/crypto/sha512-ssse3-asm.S           |  4 +-
> >  arch/x86/crypto/twofish-avx-x86_64-asm_64.S  | 24 ++++----
> >  arch/x86/crypto/twofish-x86_64-asm_64-3way.S |  8 +--
> >  arch/x86/crypto/twofish-x86_64-asm_64.S      |  8 +--
> 
> I could use an ACK for the crypto bits...

Acked-by: Herbert Xu <herbert@gondor.apana.org.au>

Cheers,
-- 
Email: Herbert Xu <herbert@gondor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt

^ permalink raw reply	[flat|nested] 110+ messages in thread

* Re: [Xen-devel] [PATCH v9 24/28] x86_64/asm: Change all ENTRY+ENDPROC to SYM_FUNC_*
@ 2019-10-18  6:56       ` Herbert Xu
  0 siblings, 0 replies; 110+ messages in thread
From: Herbert Xu @ 2019-10-18  6:56 UTC (permalink / raw)
  To: Borislav Petkov
  Cc: linux-arch, Len Brown, linux-efi, Rafael J . Wysocki,
	Juergen Gross, Ard Biesheuvel, Boris Ostrovsky, linux-pm, x86,
	Rafael J. Wysocki, linux-kernel, Matt Fleming, mingo,
	linux-crypto, Pavel Machek, hpa, xen-devel, tglx, Jiri Slaby,
	David S. Miller

On Wed, Oct 16, 2019 at 09:12:30AM +0200, Borislav Petkov wrote:
> Hi,
> 
> On Fri, Oct 11, 2019 at 01:51:04PM +0200, Jiri Slaby wrote:
> > These are all functions which are invoked from elsewhere, so annotate
> > them as global using the new SYM_FUNC_START. And their ENDPROC's by
> > SYM_FUNC_END.
> > 
> > And make sure ENTRY/ENDPROC is not defined on X86_64, given these were
> > the last users.
> > 
> > Signed-off-by: Jiri Slaby <jslaby@suse.cz>
> > Reviewed-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> [hibernate]
> > Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> [xen bits]
> > Cc: "H. Peter Anvin" <hpa@zytor.com>
> > Cc: Borislav Petkov <bp@alien8.de>
> > Cc: Thomas Gleixner <tglx@linutronix.de>
> > Cc: Ingo Molnar <mingo@redhat.com>
> > Cc: x86@kernel.org
> > Cc: Herbert Xu <herbert@gondor.apana.org.au>
> > Cc: "David S. Miller" <davem@davemloft.net>
> > Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>
> > Cc: Len Brown <len.brown@intel.com>
> > Cc: Pavel Machek <pavel@ucw.cz>
> > Cc: Matt Fleming <matt@codeblueprint.co.uk>
> > Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
> > Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
> > Cc: Juergen Gross <jgross@suse.com>
> > Cc: linux-crypto@vger.kernel.org
> > Cc: linux-pm@vger.kernel.org
> > Cc: linux-efi@vger.kernel.org
> > Cc: xen-devel@lists.xenproject.org
> > ---
> >  arch/x86/boot/compressed/efi_thunk_64.S      |  4 +-
> >  arch/x86/boot/compressed/head_64.S           | 16 +++---
> >  arch/x86/boot/compressed/mem_encrypt.S       |  8 +--
> >  arch/x86/crypto/aegis128-aesni-asm.S         | 28 ++++-----
> >  arch/x86/crypto/aes_ctrby8_avx-x86_64.S      | 12 ++--
> >  arch/x86/crypto/aesni-intel_asm.S            | 60 ++++++++++----------
> >  arch/x86/crypto/aesni-intel_avx-x86_64.S     | 32 +++++------
> >  arch/x86/crypto/blowfish-x86_64-asm_64.S     | 16 +++---
> >  arch/x86/crypto/camellia-aesni-avx-asm_64.S  | 24 ++++----
> >  arch/x86/crypto/camellia-aesni-avx2-asm_64.S | 24 ++++----
> >  arch/x86/crypto/camellia-x86_64-asm_64.S     | 16 +++---
> >  arch/x86/crypto/cast5-avx-x86_64-asm_64.S    | 16 +++---
> >  arch/x86/crypto/cast6-avx-x86_64-asm_64.S    | 24 ++++----
> >  arch/x86/crypto/chacha-avx2-x86_64.S         | 12 ++--
> >  arch/x86/crypto/chacha-avx512vl-x86_64.S     | 12 ++--
> >  arch/x86/crypto/chacha-ssse3-x86_64.S        | 12 ++--
> >  arch/x86/crypto/crc32-pclmul_asm.S           |  4 +-
> >  arch/x86/crypto/crc32c-pcl-intel-asm_64.S    |  4 +-
> >  arch/x86/crypto/crct10dif-pcl-asm_64.S       |  4 +-
> >  arch/x86/crypto/des3_ede-asm_64.S            |  8 +--
> >  arch/x86/crypto/ghash-clmulni-intel_asm.S    |  8 +--
> >  arch/x86/crypto/nh-avx2-x86_64.S             |  4 +-
> >  arch/x86/crypto/nh-sse2-x86_64.S             |  4 +-
> >  arch/x86/crypto/poly1305-avx2-x86_64.S       |  4 +-
> >  arch/x86/crypto/poly1305-sse2-x86_64.S       |  8 +--
> >  arch/x86/crypto/serpent-avx-x86_64-asm_64.S  | 24 ++++----
> >  arch/x86/crypto/serpent-avx2-asm_64.S        | 24 ++++----
> >  arch/x86/crypto/serpent-sse2-x86_64-asm_64.S |  8 +--
> >  arch/x86/crypto/sha1_avx2_x86_64_asm.S       |  4 +-
> >  arch/x86/crypto/sha1_ni_asm.S                |  4 +-
> >  arch/x86/crypto/sha1_ssse3_asm.S             |  4 +-
> >  arch/x86/crypto/sha256-avx-asm.S             |  4 +-
> >  arch/x86/crypto/sha256-avx2-asm.S            |  4 +-
> >  arch/x86/crypto/sha256-ssse3-asm.S           |  4 +-
> >  arch/x86/crypto/sha256_ni_asm.S              |  4 +-
> >  arch/x86/crypto/sha512-avx-asm.S             |  4 +-
> >  arch/x86/crypto/sha512-avx2-asm.S            |  4 +-
> >  arch/x86/crypto/sha512-ssse3-asm.S           |  4 +-
> >  arch/x86/crypto/twofish-avx-x86_64-asm_64.S  | 24 ++++----
> >  arch/x86/crypto/twofish-x86_64-asm_64-3way.S |  8 +--
> >  arch/x86/crypto/twofish-x86_64-asm_64.S      |  8 +--
> 
> I could use an ACK for the crypto bits...

Acked-by: Herbert Xu <herbert@gondor.apana.org.au>

Cheers,
-- 
Email: Herbert Xu <herbert@gondor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt

_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xenproject.org
https://lists.xenproject.org/mailman/listinfo/xen-devel

^ permalink raw reply	[flat|nested] 110+ messages in thread

* [tip: x86/asm] x86/asm/32: Change all ENTRY+ENDPROC to SYM_FUNC_*
  2019-10-11 11:51 ` [PATCH v9 27/28] x86_32/asm: Change all ENTRY+ENDPROC to SYM_FUNC_* Jiri Slaby
@ 2019-10-18 16:30     ` tip-bot2 for Jiri Slaby
  0 siblings, 0 replies; 110+ messages in thread
From: tip-bot2 for Jiri Slaby @ 2019-10-18 16:30 UTC (permalink / raw)
  To: linux-tip-commits
  Cc: Jiri Slaby, Borislav Petkov, Allison Randal, Andrey Ryabinin,
	Andy Lutomirski, Andy Shevchenko, Ard Biesheuvel,
	Bill Metzenthen, Boris Ostrovsky, Darren Hart, David S. Miller,
	Greg Kroah-Hartman, Herbert Xu, H. Peter Anvin, Ingo Molnar,
	linux-arch, linux-crypto, linux-efi, linux-pm, Mark Rutland,
	Matt Fleming, Pavel Machek, platform-driver-x86,
	Rafael J. Wysocki, Thomas Gleixner, Will Deacon, x86-ml,
	Ingo Molnar, Borislav Petkov, linux-kernel

The following commit has been merged into the x86/asm branch of tip:

Commit-ID:     6d685e5318e51b843ca50adeca50dc6300bf2cbb
Gitweb:        https://git.kernel.org/tip/6d685e5318e51b843ca50adeca50dc6300bf2cbb
Author:        Jiri Slaby <jslaby@suse.cz>
AuthorDate:    Fri, 11 Oct 2019 13:51:07 +02:00
Committer:     Borislav Petkov <bp@suse.de>
CommitterDate: Fri, 18 Oct 2019 12:03:43 +02:00

x86/asm/32: Change all ENTRY+ENDPROC to SYM_FUNC_*

These are all functions which are invoked from elsewhere, so annotate
them as global using the new SYM_FUNC_START and their ENDPROC's by
SYM_FUNC_END.

Now, ENTRY/ENDPROC can be forced to be undefined on X86, so do so.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: Allison Randal <allison@lohutok.net>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Andy Shevchenko <andy@infradead.org>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Bill Metzenthen <billm@melbpc.org.au>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: Darren Hart <dvhart@infradead.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: linux-arch@vger.kernel.org
Cc: linux-crypto@vger.kernel.org
Cc: linux-efi <linux-efi@vger.kernel.org>
Cc: linux-efi@vger.kernel.org
Cc: linux-pm@vger.kernel.org
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Matt Fleming <matt@codeblueprint.co.uk>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: platform-driver-x86@vger.kernel.org
Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Will Deacon <will@kernel.org>
Cc: x86-ml <x86@kernel.org>
Link: https://lkml.kernel.org/r/20191011115108.12392-28-jslaby@suse.cz
---
 arch/x86/boot/compressed/efi_stub_32.S     |  4 +--
 arch/x86/boot/compressed/head_32.S         | 12 ++++----
 arch/x86/crypto/serpent-sse2-i586-asm_32.S |  8 ++---
 arch/x86/crypto/twofish-i586-asm_32.S      |  8 ++---
 arch/x86/entry/entry_32.S                  | 24 ++++++++--------
 arch/x86/kernel/head_32.S                  | 16 +++++------
 arch/x86/lib/atomic64_386_32.S             |  4 +--
 arch/x86/lib/atomic64_cx8_32.S             | 32 ++++++++++-----------
 arch/x86/lib/checksum_32.S                 |  8 ++---
 arch/x86/math-emu/div_Xsig.S               |  4 +--
 arch/x86/math-emu/div_small.S              |  4 +--
 arch/x86/math-emu/mul_Xsig.S               | 12 ++++----
 arch/x86/math-emu/polynom_Xsig.S           |  4 +--
 arch/x86/math-emu/reg_norm.S               |  8 ++---
 arch/x86/math-emu/reg_round.S              |  4 +--
 arch/x86/math-emu/reg_u_add.S              |  4 +--
 arch/x86/math-emu/reg_u_div.S              |  4 +--
 arch/x86/math-emu/reg_u_mul.S              |  4 +--
 arch/x86/math-emu/reg_u_sub.S              |  4 +--
 arch/x86/math-emu/round_Xsig.S             |  8 ++---
 arch/x86/math-emu/shr_Xsig.S               |  4 +--
 arch/x86/math-emu/wm_shrx.S                |  8 ++---
 arch/x86/math-emu/wm_sqrt.S                |  4 +--
 arch/x86/platform/efi/efi_stub_32.S        |  4 +--
 arch/x86/power/hibernate_asm_32.S          |  8 ++---
 include/linux/linkage.h                    |  8 +----
 26 files changed, 104 insertions(+), 108 deletions(-)

diff --git a/arch/x86/boot/compressed/efi_stub_32.S b/arch/x86/boot/compressed/efi_stub_32.S
index 257e341..ed6c351 100644
--- a/arch/x86/boot/compressed/efi_stub_32.S
+++ b/arch/x86/boot/compressed/efi_stub_32.S
@@ -24,7 +24,7 @@
  */
 
 .text
-ENTRY(efi_call_phys)
+SYM_FUNC_START(efi_call_phys)
 	/*
 	 * 0. The function can only be called in Linux kernel. So CS has been
 	 * set to 0x0010, DS and SS have been set to 0x0018. In EFI, I found
@@ -77,7 +77,7 @@ ENTRY(efi_call_phys)
 	movl	saved_return_addr(%edx), %ecx
 	pushl	%ecx
 	ret
-ENDPROC(efi_call_phys)
+SYM_FUNC_END(efi_call_phys)
 .previous
 
 .data
diff --git a/arch/x86/boot/compressed/head_32.S b/arch/x86/boot/compressed/head_32.S
index f9e2a80..f2dfd6d 100644
--- a/arch/x86/boot/compressed/head_32.S
+++ b/arch/x86/boot/compressed/head_32.S
@@ -61,7 +61,7 @@
 	.hidden _egot
 
 	__HEAD
-ENTRY(startup_32)
+SYM_FUNC_START(startup_32)
 	cld
 	/*
 	 * Test KEEP_SEGMENTS flag to see if the bootloader is asking
@@ -142,14 +142,14 @@ ENTRY(startup_32)
  */
 	leal	.Lrelocated(%ebx), %eax
 	jmp	*%eax
-ENDPROC(startup_32)
+SYM_FUNC_END(startup_32)
 
 #ifdef CONFIG_EFI_STUB
 /*
  * We don't need the return address, so set up the stack so efi_main() can find
  * its arguments.
  */
-ENTRY(efi_pe_entry)
+SYM_FUNC_START(efi_pe_entry)
 	add	$0x4, %esp
 
 	call	1f
@@ -174,9 +174,9 @@ ENTRY(efi_pe_entry)
 	pushl	%eax
 	pushl	%ecx
 	jmp	2f		/* Skip efi_config initialization */
-ENDPROC(efi_pe_entry)
+SYM_FUNC_END(efi_pe_entry)
 
-ENTRY(efi32_stub_entry)
+SYM_FUNC_START(efi32_stub_entry)
 	add	$0x4, %esp
 	popl	%ecx
 	popl	%edx
@@ -205,7 +205,7 @@ fail:
 	movl	BP_code32_start(%esi), %eax
 	leal	startup_32(%eax), %eax
 	jmp	*%eax
-ENDPROC(efi32_stub_entry)
+SYM_FUNC_END(efi32_stub_entry)
 #endif
 
 	.text
diff --git a/arch/x86/crypto/serpent-sse2-i586-asm_32.S b/arch/x86/crypto/serpent-sse2-i586-asm_32.S
index e5c4a46..6379b99 100644
--- a/arch/x86/crypto/serpent-sse2-i586-asm_32.S
+++ b/arch/x86/crypto/serpent-sse2-i586-asm_32.S
@@ -497,7 +497,7 @@
 	pxor t0,		x3; \
 	movdqu x3,		(3*4*4)(out);
 
-ENTRY(__serpent_enc_blk_4way)
+SYM_FUNC_START(__serpent_enc_blk_4way)
 	/* input:
 	 *	arg_ctx(%esp): ctx, CTX
 	 *	arg_dst(%esp): dst
@@ -559,9 +559,9 @@ ENTRY(__serpent_enc_blk_4way)
 	xor_blocks(%eax, RA, RB, RC, RD, RT0, RT1, RE);
 
 	ret;
-ENDPROC(__serpent_enc_blk_4way)
+SYM_FUNC_END(__serpent_enc_blk_4way)
 
-ENTRY(serpent_dec_blk_4way)
+SYM_FUNC_START(serpent_dec_blk_4way)
 	/* input:
 	 *	arg_ctx(%esp): ctx, CTX
 	 *	arg_dst(%esp): dst
@@ -613,4 +613,4 @@ ENTRY(serpent_dec_blk_4way)
 	write_blocks(%eax, RC, RD, RB, RE, RT0, RT1, RA);
 
 	ret;
-ENDPROC(serpent_dec_blk_4way)
+SYM_FUNC_END(serpent_dec_blk_4way)
diff --git a/arch/x86/crypto/twofish-i586-asm_32.S b/arch/x86/crypto/twofish-i586-asm_32.S
index 290cc4e..a6f09e4 100644
--- a/arch/x86/crypto/twofish-i586-asm_32.S
+++ b/arch/x86/crypto/twofish-i586-asm_32.S
@@ -207,7 +207,7 @@
 	xor	%esi,		d ## D;\
 	ror	$1,		d ## D;
 
-ENTRY(twofish_enc_blk)
+SYM_FUNC_START(twofish_enc_blk)
 	push	%ebp			/* save registers according to calling convention*/
 	push    %ebx
 	push    %esi
@@ -261,9 +261,9 @@ ENTRY(twofish_enc_blk)
 	pop	%ebp
 	mov	$1,	%eax
 	ret
-ENDPROC(twofish_enc_blk)
+SYM_FUNC_END(twofish_enc_blk)
 
-ENTRY(twofish_dec_blk)
+SYM_FUNC_START(twofish_dec_blk)
 	push	%ebp			/* save registers according to calling convention*/
 	push    %ebx
 	push    %esi
@@ -318,4 +318,4 @@ ENTRY(twofish_dec_blk)
 	pop	%ebp
 	mov	$1,	%eax
 	ret
-ENDPROC(twofish_dec_blk)
+SYM_FUNC_END(twofish_dec_blk)
diff --git a/arch/x86/entry/entry_32.S b/arch/x86/entry/entry_32.S
index 0ecc12f..a987b62 100644
--- a/arch/x86/entry/entry_32.S
+++ b/arch/x86/entry/entry_32.S
@@ -757,7 +757,7 @@ SYM_CODE_END(__switch_to_asm)
  * asmlinkage function so its argument has to be pushed on the stack.  This
  * wrapper creates a proper "end of stack" frame header before the call.
  */
-ENTRY(schedule_tail_wrapper)
+SYM_FUNC_START(schedule_tail_wrapper)
 	FRAME_BEGIN
 
 	pushl	%eax
@@ -766,7 +766,7 @@ ENTRY(schedule_tail_wrapper)
 
 	FRAME_END
 	ret
-ENDPROC(schedule_tail_wrapper)
+SYM_FUNC_END(schedule_tail_wrapper)
 /*
  * A newly forked process directly context switches into this address.
  *
@@ -885,7 +885,7 @@ SYM_CODE_END(xen_sysenter_target)
  * ebp  user stack
  * 0(%ebp) arg6
  */
-ENTRY(entry_SYSENTER_32)
+SYM_FUNC_START(entry_SYSENTER_32)
 	/*
 	 * On entry-stack with all userspace-regs live - save and
 	 * restore eflags and %eax to use it as scratch-reg for the cr3
@@ -1013,7 +1013,7 @@ ENTRY(entry_SYSENTER_32)
 	popfl
 	jmp	.Lsysenter_flags_fixed
 SYM_ENTRY(__end_SYSENTER_singlestep_region, SYM_L_GLOBAL, SYM_A_NONE)
-ENDPROC(entry_SYSENTER_32)
+SYM_FUNC_END(entry_SYSENTER_32)
 
 /*
  * 32-bit legacy system call entry.
@@ -1043,7 +1043,7 @@ ENDPROC(entry_SYSENTER_32)
  * edi  arg5
  * ebp  arg6
  */
-ENTRY(entry_INT80_32)
+SYM_FUNC_START(entry_INT80_32)
 	ASM_CLAC
 	pushl	%eax			/* pt_regs->orig_ax */
 
@@ -1120,7 +1120,7 @@ SYM_CODE_START(iret_exc)
 SYM_CODE_END(iret_exc)
 .previous
 	_ASM_EXTABLE(.Lirq_return, iret_exc)
-ENDPROC(entry_INT80_32)
+SYM_FUNC_END(entry_INT80_32)
 
 .macro FIXUP_ESPFIX_STACK
 /*
@@ -1213,7 +1213,7 @@ SYM_CODE_START_LOCAL(common_interrupt)
 SYM_CODE_END(common_interrupt)
 
 #define BUILD_INTERRUPT3(name, nr, fn)			\
-ENTRY(name)						\
+SYM_FUNC_START(name)					\
 	ASM_CLAC;					\
 	pushl	$~(nr);					\
 	SAVE_ALL switch_stacks=1;			\
@@ -1222,7 +1222,7 @@ ENTRY(name)						\
 	movl	%esp, %eax;				\
 	call	fn;					\
 	jmp	ret_from_intr;				\
-ENDPROC(name)
+SYM_FUNC_END(name)
 
 #define BUILD_INTERRUPT(name, nr)		\
 	BUILD_INTERRUPT3(name, nr, smp_##name);	\
@@ -1341,7 +1341,7 @@ SYM_CODE_START(spurious_interrupt_bug)
 SYM_CODE_END(spurious_interrupt_bug)
 
 #ifdef CONFIG_XEN_PV
-ENTRY(xen_hypervisor_callback)
+SYM_FUNC_START(xen_hypervisor_callback)
 	pushl	$-1				/* orig_ax = -1 => not a system call */
 	SAVE_ALL
 	ENCODE_FRAME_POINTER
@@ -1369,7 +1369,7 @@ SYM_INNER_LABEL_ALIGN(xen_do_upcall, SYM_L_GLOBAL)
 	call	xen_maybe_preempt_hcall
 #endif
 	jmp	ret_from_intr
-ENDPROC(xen_hypervisor_callback)
+SYM_FUNC_END(xen_hypervisor_callback)
 
 /*
  * Hypervisor uses this for application faults while it executes.
@@ -1383,7 +1383,7 @@ ENDPROC(xen_hypervisor_callback)
  * to pop the stack frame we end up in an infinite loop of failsafe callbacks.
  * We distinguish between categories by maintaining a status value in EAX.
  */
-ENTRY(xen_failsafe_callback)
+SYM_FUNC_START(xen_failsafe_callback)
 	pushl	%eax
 	movl	$1, %eax
 1:	mov	4(%esp), %ds
@@ -1420,7 +1420,7 @@ ENTRY(xen_failsafe_callback)
 	_ASM_EXTABLE(2b, 7b)
 	_ASM_EXTABLE(3b, 8b)
 	_ASM_EXTABLE(4b, 9b)
-ENDPROC(xen_failsafe_callback)
+SYM_FUNC_END(xen_failsafe_callback)
 #endif /* CONFIG_XEN_PV */
 
 #ifdef CONFIG_XEN_PVHVM
diff --git a/arch/x86/kernel/head_32.S b/arch/x86/kernel/head_32.S
index 7029bba..ea24aa5 100644
--- a/arch/x86/kernel/head_32.S
+++ b/arch/x86/kernel/head_32.S
@@ -180,12 +180,12 @@ SYM_CODE_END(startup_32)
  * up already except stack. We just set up stack here. Then call
  * start_secondary().
  */
-ENTRY(start_cpu0)
+SYM_FUNC_START(start_cpu0)
 	movl initial_stack, %ecx
 	movl %ecx, %esp
 	call *(initial_code)
 1:	jmp 1b
-ENDPROC(start_cpu0)
+SYM_FUNC_END(start_cpu0)
 #endif
 
 /*
@@ -196,7 +196,7 @@ ENDPROC(start_cpu0)
  * If cpu hotplug is not supported then this code can go in init section
  * which will be freed later
  */
-ENTRY(startup_32_smp)
+SYM_FUNC_START(startup_32_smp)
 	cld
 	movl $(__BOOT_DS),%eax
 	movl %eax,%ds
@@ -363,7 +363,7 @@ ENTRY(startup_32_smp)
 
 	call *(initial_code)
 1:	jmp 1b
-ENDPROC(startup_32_smp)
+SYM_FUNC_END(startup_32_smp)
 
 #include "verify_cpu.S"
 
@@ -393,7 +393,7 @@ setup_once:
 	andl $0,setup_once_ref	/* Once is enough, thanks */
 	ret
 
-ENTRY(early_idt_handler_array)
+SYM_FUNC_START(early_idt_handler_array)
 	# 36(%esp) %eflags
 	# 32(%esp) %cs
 	# 28(%esp) %eip
@@ -408,7 +408,7 @@ ENTRY(early_idt_handler_array)
 	i = i + 1
 	.fill early_idt_handler_array + i*EARLY_IDT_HANDLER_SIZE - ., 1, 0xcc
 	.endr
-ENDPROC(early_idt_handler_array)
+SYM_FUNC_END(early_idt_handler_array)
 	
 SYM_CODE_START_LOCAL(early_idt_handler_common)
 	/*
@@ -464,7 +464,7 @@ SYM_CODE_START_LOCAL(early_idt_handler_common)
 SYM_CODE_END(early_idt_handler_common)
 
 /* This is the default interrupt "handler" :-) */
-ENTRY(early_ignore_irq)
+SYM_FUNC_START(early_ignore_irq)
 	cld
 #ifdef CONFIG_PRINTK
 	pushl %eax
@@ -499,7 +499,7 @@ ENTRY(early_ignore_irq)
 hlt_loop:
 	hlt
 	jmp hlt_loop
-ENDPROC(early_ignore_irq)
+SYM_FUNC_END(early_ignore_irq)
 
 __INITDATA
 	.align 4
diff --git a/arch/x86/lib/atomic64_386_32.S b/arch/x86/lib/atomic64_386_32.S
index e0788ba..3b65441 100644
--- a/arch/x86/lib/atomic64_386_32.S
+++ b/arch/x86/lib/atomic64_386_32.S
@@ -20,10 +20,10 @@
 
 #define BEGIN(op) \
 .macro endp; \
-ENDPROC(atomic64_##op##_386); \
+SYM_FUNC_END(atomic64_##op##_386); \
 .purgem endp; \
 .endm; \
-ENTRY(atomic64_##op##_386); \
+SYM_FUNC_START(atomic64_##op##_386); \
 	LOCK v;
 
 #define ENDP endp
diff --git a/arch/x86/lib/atomic64_cx8_32.S b/arch/x86/lib/atomic64_cx8_32.S
index 843d978..1c5c81c 100644
--- a/arch/x86/lib/atomic64_cx8_32.S
+++ b/arch/x86/lib/atomic64_cx8_32.S
@@ -16,12 +16,12 @@
 	cmpxchg8b (\reg)
 .endm
 
-ENTRY(atomic64_read_cx8)
+SYM_FUNC_START(atomic64_read_cx8)
 	read64 %ecx
 	ret
-ENDPROC(atomic64_read_cx8)
+SYM_FUNC_END(atomic64_read_cx8)
 
-ENTRY(atomic64_set_cx8)
+SYM_FUNC_START(atomic64_set_cx8)
 1:
 /* we don't need LOCK_PREFIX since aligned 64-bit writes
  * are atomic on 586 and newer */
@@ -29,19 +29,19 @@ ENTRY(atomic64_set_cx8)
 	jne 1b
 
 	ret
-ENDPROC(atomic64_set_cx8)
+SYM_FUNC_END(atomic64_set_cx8)
 
-ENTRY(atomic64_xchg_cx8)
+SYM_FUNC_START(atomic64_xchg_cx8)
 1:
 	LOCK_PREFIX
 	cmpxchg8b (%esi)
 	jne 1b
 
 	ret
-ENDPROC(atomic64_xchg_cx8)
+SYM_FUNC_END(atomic64_xchg_cx8)
 
 .macro addsub_return func ins insc
-ENTRY(atomic64_\func\()_return_cx8)
+SYM_FUNC_START(atomic64_\func\()_return_cx8)
 	pushl %ebp
 	pushl %ebx
 	pushl %esi
@@ -69,14 +69,14 @@ ENTRY(atomic64_\func\()_return_cx8)
 	popl %ebx
 	popl %ebp
 	ret
-ENDPROC(atomic64_\func\()_return_cx8)
+SYM_FUNC_END(atomic64_\func\()_return_cx8)
 .endm
 
 addsub_return add add adc
 addsub_return sub sub sbb
 
 .macro incdec_return func ins insc
-ENTRY(atomic64_\func\()_return_cx8)
+SYM_FUNC_START(atomic64_\func\()_return_cx8)
 	pushl %ebx
 
 	read64 %esi
@@ -94,13 +94,13 @@ ENTRY(atomic64_\func\()_return_cx8)
 	movl %ecx, %edx
 	popl %ebx
 	ret
-ENDPROC(atomic64_\func\()_return_cx8)
+SYM_FUNC_END(atomic64_\func\()_return_cx8)
 .endm
 
 incdec_return inc add adc
 incdec_return dec sub sbb
 
-ENTRY(atomic64_dec_if_positive_cx8)
+SYM_FUNC_START(atomic64_dec_if_positive_cx8)
 	pushl %ebx
 
 	read64 %esi
@@ -119,9 +119,9 @@ ENTRY(atomic64_dec_if_positive_cx8)
 	movl %ecx, %edx
 	popl %ebx
 	ret
-ENDPROC(atomic64_dec_if_positive_cx8)
+SYM_FUNC_END(atomic64_dec_if_positive_cx8)
 
-ENTRY(atomic64_add_unless_cx8)
+SYM_FUNC_START(atomic64_add_unless_cx8)
 	pushl %ebp
 	pushl %ebx
 /* these just push these two parameters on the stack */
@@ -155,9 +155,9 @@ ENTRY(atomic64_add_unless_cx8)
 	jne 2b
 	xorl %eax, %eax
 	jmp 3b
-ENDPROC(atomic64_add_unless_cx8)
+SYM_FUNC_END(atomic64_add_unless_cx8)
 
-ENTRY(atomic64_inc_not_zero_cx8)
+SYM_FUNC_START(atomic64_inc_not_zero_cx8)
 	pushl %ebx
 
 	read64 %esi
@@ -177,4 +177,4 @@ ENTRY(atomic64_inc_not_zero_cx8)
 3:
 	popl %ebx
 	ret
-ENDPROC(atomic64_inc_not_zero_cx8)
+SYM_FUNC_END(atomic64_inc_not_zero_cx8)
diff --git a/arch/x86/lib/checksum_32.S b/arch/x86/lib/checksum_32.S
index 74256bd..4742e8f 100644
--- a/arch/x86/lib/checksum_32.S
+++ b/arch/x86/lib/checksum_32.S
@@ -46,7 +46,7 @@ unsigned int csum_partial(const unsigned char * buff, int len, unsigned int sum)
 	   * Fortunately, it is easy to convert 2-byte alignment to 4-byte
 	   * alignment for the unrolled loop.
 	   */		
-ENTRY(csum_partial)
+SYM_FUNC_START(csum_partial)
 	pushl %esi
 	pushl %ebx
 	movl 20(%esp),%eax	# Function arg: unsigned int sum
@@ -128,13 +128,13 @@ ENTRY(csum_partial)
 	popl %ebx
 	popl %esi
 	ret
-ENDPROC(csum_partial)
+SYM_FUNC_END(csum_partial)
 
 #else
 
 /* Version for PentiumII/PPro */
 
-ENTRY(csum_partial)
+SYM_FUNC_START(csum_partial)
 	pushl %esi
 	pushl %ebx
 	movl 20(%esp),%eax	# Function arg: unsigned int sum
@@ -246,7 +246,7 @@ ENTRY(csum_partial)
 	popl %ebx
 	popl %esi
 	ret
-ENDPROC(csum_partial)
+SYM_FUNC_END(csum_partial)
 				
 #endif
 EXPORT_SYMBOL(csum_partial)
diff --git a/arch/x86/math-emu/div_Xsig.S b/arch/x86/math-emu/div_Xsig.S
index ee08449..951da2a 100644
--- a/arch/x86/math-emu/div_Xsig.S
+++ b/arch/x86/math-emu/div_Xsig.S
@@ -75,7 +75,7 @@ FPU_result_1:
 
 
 .text
-ENTRY(div_Xsig)
+SYM_FUNC_START(div_Xsig)
 	pushl	%ebp
 	movl	%esp,%ebp
 #ifndef NON_REENTRANT_FPU
@@ -364,4 +364,4 @@ L_bugged_2:
 	pop	%ebx
 	jmp	L_exit
 #endif /* PARANOID */ 
-ENDPROC(div_Xsig)
+SYM_FUNC_END(div_Xsig)
diff --git a/arch/x86/math-emu/div_small.S b/arch/x86/math-emu/div_small.S
index 8f5025c..d047d18 100644
--- a/arch/x86/math-emu/div_small.S
+++ b/arch/x86/math-emu/div_small.S
@@ -19,7 +19,7 @@
 #include "fpu_emu.h"
 
 .text
-ENTRY(FPU_div_small)
+SYM_FUNC_START(FPU_div_small)
 	pushl	%ebp
 	movl	%esp,%ebp
 
@@ -45,4 +45,4 @@ ENTRY(FPU_div_small)
 
 	leave
 	ret
-ENDPROC(FPU_div_small)
+SYM_FUNC_END(FPU_div_small)
diff --git a/arch/x86/math-emu/mul_Xsig.S b/arch/x86/math-emu/mul_Xsig.S
index 3e48912..4afc7b1 100644
--- a/arch/x86/math-emu/mul_Xsig.S
+++ b/arch/x86/math-emu/mul_Xsig.S
@@ -25,7 +25,7 @@
 #include "fpu_emu.h"
 
 .text
-ENTRY(mul32_Xsig)
+SYM_FUNC_START(mul32_Xsig)
 	pushl %ebp
 	movl %esp,%ebp
 	subl $16,%esp
@@ -63,10 +63,10 @@ ENTRY(mul32_Xsig)
 	popl %esi
 	leave
 	ret
-ENDPROC(mul32_Xsig)
+SYM_FUNC_END(mul32_Xsig)
 
 
-ENTRY(mul64_Xsig)
+SYM_FUNC_START(mul64_Xsig)
 	pushl %ebp
 	movl %esp,%ebp
 	subl $16,%esp
@@ -116,11 +116,11 @@ ENTRY(mul64_Xsig)
 	popl %esi
 	leave
 	ret
-ENDPROC(mul64_Xsig)
+SYM_FUNC_END(mul64_Xsig)
 
 
 
-ENTRY(mul_Xsig_Xsig)
+SYM_FUNC_START(mul_Xsig_Xsig)
 	pushl %ebp
 	movl %esp,%ebp
 	subl $16,%esp
@@ -176,4 +176,4 @@ ENTRY(mul_Xsig_Xsig)
 	popl %esi
 	leave
 	ret
-ENDPROC(mul_Xsig_Xsig)
+SYM_FUNC_END(mul_Xsig_Xsig)
diff --git a/arch/x86/math-emu/polynom_Xsig.S b/arch/x86/math-emu/polynom_Xsig.S
index 604f0b2..702315e 100644
--- a/arch/x86/math-emu/polynom_Xsig.S
+++ b/arch/x86/math-emu/polynom_Xsig.S
@@ -37,7 +37,7 @@
 #define OVERFLOWED      -16(%ebp)	/* addition overflow flag */
 
 .text
-ENTRY(polynomial_Xsig)
+SYM_FUNC_START(polynomial_Xsig)
 	pushl	%ebp
 	movl	%esp,%ebp
 	subl	$32,%esp
@@ -134,4 +134,4 @@ L_accum_done:
 	popl	%esi
 	leave
 	ret
-ENDPROC(polynomial_Xsig)
+SYM_FUNC_END(polynomial_Xsig)
diff --git a/arch/x86/math-emu/reg_norm.S b/arch/x86/math-emu/reg_norm.S
index 7f6b439..cad1d60 100644
--- a/arch/x86/math-emu/reg_norm.S
+++ b/arch/x86/math-emu/reg_norm.S
@@ -22,7 +22,7 @@
 
 
 .text
-ENTRY(FPU_normalize)
+SYM_FUNC_START(FPU_normalize)
 	pushl	%ebp
 	movl	%esp,%ebp
 	pushl	%ebx
@@ -95,12 +95,12 @@ L_overflow:
 	call	arith_overflow
 	pop	%ebx
 	jmp	L_exit
-ENDPROC(FPU_normalize)
+SYM_FUNC_END(FPU_normalize)
 
 
 
 /* Normalise without reporting underflow or overflow */
-ENTRY(FPU_normalize_nuo)
+SYM_FUNC_START(FPU_normalize_nuo)
 	pushl	%ebp
 	movl	%esp,%ebp
 	pushl	%ebx
@@ -147,4 +147,4 @@ L_exit_nuo_zero:
 	popl	%ebx
 	leave
 	ret
-ENDPROC(FPU_normalize_nuo)
+SYM_FUNC_END(FPU_normalize_nuo)
diff --git a/arch/x86/math-emu/reg_round.S b/arch/x86/math-emu/reg_round.S
index 0456342..11a1f79 100644
--- a/arch/x86/math-emu/reg_round.S
+++ b/arch/x86/math-emu/reg_round.S
@@ -109,7 +109,7 @@ FPU_denormal:
 .globl fpu_Arith_exit
 
 /* Entry point when called from C */
-ENTRY(FPU_round)
+SYM_FUNC_START(FPU_round)
 	pushl	%ebp
 	movl	%esp,%ebp
 	pushl	%esi
@@ -708,4 +708,4 @@ L_exception_exit:
 	jmp	fpu_reg_round_special_exit
 #endif /* PARANOID */ 
 
-ENDPROC(FPU_round)
+SYM_FUNC_END(FPU_round)
diff --git a/arch/x86/math-emu/reg_u_add.S b/arch/x86/math-emu/reg_u_add.S
index 50fe9f8..9c9e2c8 100644
--- a/arch/x86/math-emu/reg_u_add.S
+++ b/arch/x86/math-emu/reg_u_add.S
@@ -32,7 +32,7 @@
 #include "control_w.h"
 
 .text
-ENTRY(FPU_u_add)
+SYM_FUNC_START(FPU_u_add)
 	pushl	%ebp
 	movl	%esp,%ebp
 	pushl	%esi
@@ -166,4 +166,4 @@ L_exit:
 	leave
 	ret
 #endif /* PARANOID */
-ENDPROC(FPU_u_add)
+SYM_FUNC_END(FPU_u_add)
diff --git a/arch/x86/math-emu/reg_u_div.S b/arch/x86/math-emu/reg_u_div.S
index 94d545e..e2fb5c2 100644
--- a/arch/x86/math-emu/reg_u_div.S
+++ b/arch/x86/math-emu/reg_u_div.S
@@ -75,7 +75,7 @@ FPU_ovfl_flag:
 #define DEST	PARAM3
 
 .text
-ENTRY(FPU_u_div)
+SYM_FUNC_START(FPU_u_div)
 	pushl	%ebp
 	movl	%esp,%ebp
 #ifndef NON_REENTRANT_FPU
@@ -471,4 +471,4 @@ L_exit:
 	ret
 #endif /* PARANOID */ 
 
-ENDPROC(FPU_u_div)
+SYM_FUNC_END(FPU_u_div)
diff --git a/arch/x86/math-emu/reg_u_mul.S b/arch/x86/math-emu/reg_u_mul.S
index 21cde47..0c779c8 100644
--- a/arch/x86/math-emu/reg_u_mul.S
+++ b/arch/x86/math-emu/reg_u_mul.S
@@ -45,7 +45,7 @@ FPU_accum_1:
 
 
 .text
-ENTRY(FPU_u_mul)
+SYM_FUNC_START(FPU_u_mul)
 	pushl	%ebp
 	movl	%esp,%ebp
 #ifndef NON_REENTRANT_FPU
@@ -147,4 +147,4 @@ L_exit:
 	ret
 #endif /* PARANOID */ 
 
-ENDPROC(FPU_u_mul)
+SYM_FUNC_END(FPU_u_mul)
diff --git a/arch/x86/math-emu/reg_u_sub.S b/arch/x86/math-emu/reg_u_sub.S
index f05dea7..e9bb7c2 100644
--- a/arch/x86/math-emu/reg_u_sub.S
+++ b/arch/x86/math-emu/reg_u_sub.S
@@ -33,7 +33,7 @@
 #include "control_w.h"
 
 .text
-ENTRY(FPU_u_sub)
+SYM_FUNC_START(FPU_u_sub)
 	pushl	%ebp
 	movl	%esp,%ebp
 	pushl	%esi
@@ -271,4 +271,4 @@ L_exit:
 	popl	%esi
 	leave
 	ret
-ENDPROC(FPU_u_sub)
+SYM_FUNC_END(FPU_u_sub)
diff --git a/arch/x86/math-emu/round_Xsig.S b/arch/x86/math-emu/round_Xsig.S
index 226a51e..d9d7de8 100644
--- a/arch/x86/math-emu/round_Xsig.S
+++ b/arch/x86/math-emu/round_Xsig.S
@@ -23,7 +23,7 @@
 
 
 .text
-ENTRY(round_Xsig)
+SYM_FUNC_START(round_Xsig)
 	pushl	%ebp
 	movl	%esp,%ebp
 	pushl	%ebx		/* Reserve some space */
@@ -79,11 +79,11 @@ L_exit:
 	popl	%ebx
 	leave
 	ret
-ENDPROC(round_Xsig)
+SYM_FUNC_END(round_Xsig)
 
 
 
-ENTRY(norm_Xsig)
+SYM_FUNC_START(norm_Xsig)
 	pushl	%ebp
 	movl	%esp,%ebp
 	pushl	%ebx		/* Reserve some space */
@@ -139,4 +139,4 @@ L_n_exit:
 	popl	%ebx
 	leave
 	ret
-ENDPROC(norm_Xsig)
+SYM_FUNC_END(norm_Xsig)
diff --git a/arch/x86/math-emu/shr_Xsig.S b/arch/x86/math-emu/shr_Xsig.S
index 96f4779..726af98 100644
--- a/arch/x86/math-emu/shr_Xsig.S
+++ b/arch/x86/math-emu/shr_Xsig.S
@@ -22,7 +22,7 @@
 #include "fpu_emu.h"
 
 .text
-ENTRY(shr_Xsig)
+SYM_FUNC_START(shr_Xsig)
 	push	%ebp
 	movl	%esp,%ebp
 	pushl	%esi
@@ -86,4 +86,4 @@ L_more_than_95:
 	popl	%esi
 	leave
 	ret
-ENDPROC(shr_Xsig)
+SYM_FUNC_END(shr_Xsig)
diff --git a/arch/x86/math-emu/wm_shrx.S b/arch/x86/math-emu/wm_shrx.S
index d588874..4fc8917 100644
--- a/arch/x86/math-emu/wm_shrx.S
+++ b/arch/x86/math-emu/wm_shrx.S
@@ -33,7 +33,7 @@
  |   Results returned in the 64 bit arg and eax.                             |
  +---------------------------------------------------------------------------*/
 
-ENTRY(FPU_shrx)
+SYM_FUNC_START(FPU_shrx)
 	push	%ebp
 	movl	%esp,%ebp
 	pushl	%esi
@@ -93,7 +93,7 @@ L_more_than_95:
 	popl	%esi
 	leave
 	ret
-ENDPROC(FPU_shrx)
+SYM_FUNC_END(FPU_shrx)
 
 
 /*---------------------------------------------------------------------------+
@@ -112,7 +112,7 @@ ENDPROC(FPU_shrx)
  |   part which has been shifted out of the arg.                             |
  |   Results returned in the 64 bit arg and eax.                             |
  +---------------------------------------------------------------------------*/
-ENTRY(FPU_shrxs)
+SYM_FUNC_START(FPU_shrxs)
 	push	%ebp
 	movl	%esp,%ebp
 	pushl	%esi
@@ -204,4 +204,4 @@ Ls_more_than_95:
 	popl	%esi
 	leave
 	ret
-ENDPROC(FPU_shrxs)
+SYM_FUNC_END(FPU_shrxs)
diff --git a/arch/x86/math-emu/wm_sqrt.S b/arch/x86/math-emu/wm_sqrt.S
index f031c0e..3b2b581 100644
--- a/arch/x86/math-emu/wm_sqrt.S
+++ b/arch/x86/math-emu/wm_sqrt.S
@@ -75,7 +75,7 @@ FPU_fsqrt_arg_0:
 
 
 .text
-ENTRY(wm_sqrt)
+SYM_FUNC_START(wm_sqrt)
 	pushl	%ebp
 	movl	%esp,%ebp
 #ifndef NON_REENTRANT_FPU
@@ -469,4 +469,4 @@ sqrt_more_prec_large:
 /* Our estimate is too large */
 	movl	$0x7fffff00,%eax
 	jmp	sqrt_round_result
-ENDPROC(wm_sqrt)
+SYM_FUNC_END(wm_sqrt)
diff --git a/arch/x86/platform/efi/efi_stub_32.S b/arch/x86/platform/efi/efi_stub_32.S
index ab2e91e..eed8b5b 100644
--- a/arch/x86/platform/efi/efi_stub_32.S
+++ b/arch/x86/platform/efi/efi_stub_32.S
@@ -22,7 +22,7 @@
  */
 
 .text
-ENTRY(efi_call_phys)
+SYM_FUNC_START(efi_call_phys)
 	/*
 	 * 0. The function can only be called in Linux kernel. So CS has been
 	 * set to 0x0010, DS and SS have been set to 0x0018. In EFI, I found
@@ -114,7 +114,7 @@ ENTRY(efi_call_phys)
 	movl	(%edx), %ecx
 	pushl	%ecx
 	ret
-ENDPROC(efi_call_phys)
+SYM_FUNC_END(efi_call_phys)
 .previous
 
 .data
diff --git a/arch/x86/power/hibernate_asm_32.S b/arch/x86/power/hibernate_asm_32.S
index a19ed3d..8786653 100644
--- a/arch/x86/power/hibernate_asm_32.S
+++ b/arch/x86/power/hibernate_asm_32.S
@@ -16,7 +16,7 @@
 
 .text
 
-ENTRY(swsusp_arch_suspend)
+SYM_FUNC_START(swsusp_arch_suspend)
 	movl %esp, saved_context_esp
 	movl %ebx, saved_context_ebx
 	movl %ebp, saved_context_ebp
@@ -33,7 +33,7 @@ ENTRY(swsusp_arch_suspend)
 	call swsusp_save
 	FRAME_END
 	ret
-ENDPROC(swsusp_arch_suspend)
+SYM_FUNC_END(swsusp_arch_suspend)
 
 SYM_CODE_START(restore_image)
 	/* prepare to jump to the image kernel */
@@ -82,7 +82,7 @@ SYM_CODE_END(core_restore_code)
 
 	/* code below belongs to the image kernel */
 	.align PAGE_SIZE
-ENTRY(restore_registers)
+SYM_FUNC_START(restore_registers)
 	/* go back to the original page tables */
 	movl	%ebp, %cr3
 	movl	mmu_cr4_features, %ecx
@@ -109,4 +109,4 @@ ENTRY(restore_registers)
 	movl	%eax, in_suspend
 
 	ret
-ENDPROC(restore_registers)
+SYM_FUNC_END(restore_registers)
diff --git a/include/linux/linkage.h b/include/linux/linkage.h
index 5ffcf72..331a230 100644
--- a/include/linux/linkage.h
+++ b/include/linux/linkage.h
@@ -112,15 +112,13 @@
 	.globl name ASM_NL \
 	name:
 #endif
-#endif
 
-#ifndef CONFIG_X86_64
 #ifndef ENTRY
 /* deprecated, use SYM_FUNC_START */
 #define ENTRY(name) \
 	SYM_FUNC_START(name)
 #endif
-#endif /* CONFIG_X86_64 */
+#endif /* CONFIG_X86 */
 #endif /* LINKER_SCRIPT */
 
 #ifndef WEAK
@@ -135,9 +133,7 @@
 #define END(name) \
 	.size name, .-name
 #endif
-#endif /* CONFIG_X86 */
 
-#ifndef CONFIG_X86_64
 /* If symbol 'name' is treated as a subroutine (gets called, and returns)
  * then please use ENDPROC to mark 'name' as STT_FUNC for the benefit of
  * static analysis tools such as stack depth analyzer.
@@ -147,7 +143,7 @@
 #define ENDPROC(name) \
 	SYM_FUNC_END(name)
 #endif
-#endif /* CONFIG_X86_64 */
+#endif /* CONFIG_X86 */
 
 /* === generic annotations === */
 

^ permalink raw reply related	[flat|nested] 110+ messages in thread

* [tip: x86/asm] x86/asm: Replace WEAK uses by SYM_INNER_LABEL_ALIGN
  2019-10-11 11:51 ` [PATCH v9 28/28] x86/asm: Replace WEAK uses by SYM_INNER_LABEL_ALIGN Jiri Slaby
@ 2019-10-18 16:30   ` tip-bot2 for Jiri Slaby
  0 siblings, 0 replies; 110+ messages in thread
From: tip-bot2 for Jiri Slaby @ 2019-10-18 16:30 UTC (permalink / raw)
  To: linux-tip-commits
  Cc: Jiri Slaby, Borislav Petkov, Andrey Ryabinin, Boris Ostrovsky,
	Herbert Xu, H. Peter Anvin, Ingo Molnar, Josh Poimboeuf,
	linux-arch, Mark Rutland, Peter Zijlstra, Rafael J. Wysocki,
	Steven Rostedt (VMware),
	Thomas Gleixner, x86-ml, Ingo Molnar, Borislav Petkov,
	linux-kernel

The following commit has been merged into the x86/asm branch of tip:

Commit-ID:     13fbe784ef6e58d0267a6e183f90ce7826d7d885
Gitweb:        https://git.kernel.org/tip/13fbe784ef6e58d0267a6e183f90ce7826d7d885
Author:        Jiri Slaby <jslaby@suse.cz>
AuthorDate:    Fri, 11 Oct 2019 13:51:08 +02:00
Committer:     Borislav Petkov <bp@suse.de>
CommitterDate: Fri, 18 Oct 2019 12:13:35 +02:00

x86/asm: Replace WEAK uses by SYM_INNER_LABEL_ALIGN

Use the new SYM_INNER_LABEL_ALIGN for WEAK entries in the middle of x86
assembly functions.

And make sure WEAK is not defined for x86 anymore as these were the last
users.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: linux-arch@vger.kernel.org
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Cc: "Steven Rostedt (VMware)" <rostedt@goodmis.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: x86-ml <x86@kernel.org>
Link: https://lkml.kernel.org/r/20191011115108.12392-29-jslaby@suse.cz
---
 arch/x86/kernel/ftrace_32.S | 2 +-
 arch/x86/kernel/ftrace_64.S | 2 +-
 arch/x86/kernel/head_32.S   | 2 +-
 include/linux/linkage.h     | 2 +-
 4 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/x86/kernel/ftrace_32.S b/arch/x86/kernel/ftrace_32.S
index b4f495b..8ed1f5d 100644
--- a/arch/x86/kernel/ftrace_32.S
+++ b/arch/x86/kernel/ftrace_32.S
@@ -85,7 +85,7 @@ ftrace_graph_call:
 #endif
 
 /* This is weak to keep gas from relaxing the jumps */
-WEAK(ftrace_stub)
+SYM_INNER_LABEL_ALIGN(ftrace_stub, SYM_L_WEAK)
 	ret
 SYM_CODE_END(ftrace_caller)
 
diff --git a/arch/x86/kernel/ftrace_64.S b/arch/x86/kernel/ftrace_64.S
index 16deae7..69c8d1b 100644
--- a/arch/x86/kernel/ftrace_64.S
+++ b/arch/x86/kernel/ftrace_64.S
@@ -168,7 +168,7 @@ SYM_INNER_LABEL(ftrace_graph_call, SYM_L_GLOBAL)
  * This is weak to keep gas from relaxing the jumps.
  * It is also used to copy the retq for trampolines.
  */
-WEAK(ftrace_stub)
+SYM_INNER_LABEL_ALIGN(ftrace_stub, SYM_L_WEAK)
 	retq
 SYM_FUNC_END(ftrace_caller)
 
diff --git a/arch/x86/kernel/head_32.S b/arch/x86/kernel/head_32.S
index ea24aa5..3fe7d20 100644
--- a/arch/x86/kernel/head_32.S
+++ b/arch/x86/kernel/head_32.S
@@ -156,7 +156,7 @@ SYM_CODE_START(startup_32)
 	jmp *%eax
 
 .Lbad_subarch:
-WEAK(xen_entry)
+SYM_INNER_LABEL_ALIGN(xen_entry, SYM_L_WEAK)
 	/* Unknown implementation; there's really
 	   nothing we can do at this point. */
 	ud2a
diff --git a/include/linux/linkage.h b/include/linux/linkage.h
index 331a230..9280209 100644
--- a/include/linux/linkage.h
+++ b/include/linux/linkage.h
@@ -121,13 +121,13 @@
 #endif /* CONFIG_X86 */
 #endif /* LINKER_SCRIPT */
 
+#ifndef CONFIG_X86
 #ifndef WEAK
 /* deprecated, use SYM_FUNC_START_WEAK* */
 #define WEAK(name)	   \
 	SYM_FUNC_START_WEAK(name)
 #endif
 
-#ifndef CONFIG_X86
 #ifndef END
 /* deprecated, use SYM_FUNC_END, SYM_DATA_END, or SYM_END */
 #define END(name) \

^ permalink raw reply related	[flat|nested] 110+ messages in thread

* [tip: x86/asm] x86/asm/32: Change all ENTRY+END to SYM_CODE_*
  2019-10-11 11:51 ` [PATCH v9 26/28] x86_32/asm: Change all ENTRY+END to SYM_CODE_* Jiri Slaby
@ 2019-10-18 16:30   ` tip-bot2 for Jiri Slaby
  0 siblings, 0 replies; 110+ messages in thread
From: tip-bot2 for Jiri Slaby @ 2019-10-18 16:30 UTC (permalink / raw)
  To: linux-tip-commits
  Cc: Jiri Slaby, Borislav Petkov, Andrey Ryabinin, Andy Lutomirski,
	Boris Ostrovsky, Herbert Xu, H. Peter Anvin, Ingo Molnar,
	Josh Poimboeuf, linux-arch, Mark Rutland, Peter Zijlstra,
	Rafael J. Wysocki, Steven Rostedt (VMware),
	Thomas Gleixner, x86-ml, Ingo Molnar, Borislav Petkov,
	linux-kernel

The following commit has been merged into the x86/asm branch of tip:

Commit-ID:     5e63306f1629527799e34a9814dd8035df6ca854
Gitweb:        https://git.kernel.org/tip/5e63306f1629527799e34a9814dd8035df6ca854
Author:        Jiri Slaby <jslaby@suse.cz>
AuthorDate:    Fri, 11 Oct 2019 13:51:06 +02:00
Committer:     Borislav Petkov <bp@suse.de>
CommitterDate: Fri, 18 Oct 2019 12:00:43 +02:00

x86/asm/32: Change all ENTRY+END to SYM_CODE_*

Change all assembly code which is marked using END (and not ENDPROC) to
appropriate new markings SYM_CODE_START and SYM_CODE_END.

And since the last user of END on X86 is gone now, make sure that END is
not defined there.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: linux-arch@vger.kernel.org
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Cc: "Steven Rostedt (VMware)" <rostedt@goodmis.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: x86-ml <x86@kernel.org>
Link: https://lkml.kernel.org/r/20191011115108.12392-27-jslaby@suse.cz
---
 arch/x86/entry/entry_32.S   | 104 +++++++++++++++++------------------
 arch/x86/kernel/ftrace_32.S |   8 +--
 include/linux/linkage.h     |   2 +-
 3 files changed, 58 insertions(+), 56 deletions(-)

diff --git a/arch/x86/entry/entry_32.S b/arch/x86/entry/entry_32.S
index 64fe7aa..0ecc12f 100644
--- a/arch/x86/entry/entry_32.S
+++ b/arch/x86/entry/entry_32.S
@@ -709,7 +709,7 @@
  * %eax: prev task
  * %edx: next task
  */
-ENTRY(__switch_to_asm)
+SYM_CODE_START(__switch_to_asm)
 	/*
 	 * Save callee-saved registers
 	 * This must match the order in struct inactive_task_frame
@@ -748,7 +748,7 @@ ENTRY(__switch_to_asm)
 	popl	%ebp
 
 	jmp	__switch_to
-END(__switch_to_asm)
+SYM_CODE_END(__switch_to_asm)
 
 /*
  * The unwinder expects the last frame on the stack to always be at the same
@@ -774,7 +774,7 @@ ENDPROC(schedule_tail_wrapper)
  * ebx: kernel thread func (NULL for user thread)
  * edi: kernel thread arg
  */
-ENTRY(ret_from_fork)
+SYM_CODE_START(ret_from_fork)
 	call	schedule_tail_wrapper
 
 	testl	%ebx, %ebx
@@ -797,7 +797,7 @@ ENTRY(ret_from_fork)
 	 */
 	movl	$0, PT_EAX(%esp)
 	jmp	2b
-END(ret_from_fork)
+SYM_CODE_END(ret_from_fork)
 
 /*
  * Return to user mode is not as complex as all this looks,
@@ -1161,7 +1161,7 @@ ENDPROC(entry_INT80_32)
  * We pack 1 stub into every 8-byte block.
  */
 	.align 8
-ENTRY(irq_entries_start)
+SYM_CODE_START(irq_entries_start)
     vector=FIRST_EXTERNAL_VECTOR
     .rept (FIRST_SYSTEM_VECTOR - FIRST_EXTERNAL_VECTOR)
 	pushl	$(~vector+0x80)			/* Note: always in signed byte range */
@@ -1169,11 +1169,11 @@ ENTRY(irq_entries_start)
 	jmp	common_interrupt
 	.align	8
     .endr
-END(irq_entries_start)
+SYM_CODE_END(irq_entries_start)
 
 #ifdef CONFIG_X86_LOCAL_APIC
 	.align 8
-ENTRY(spurious_entries_start)
+SYM_CODE_START(spurious_entries_start)
     vector=FIRST_SYSTEM_VECTOR
     .rept (NR_VECTORS - FIRST_SYSTEM_VECTOR)
 	pushl	$(~vector+0x80)			/* Note: always in signed byte range */
@@ -1181,7 +1181,7 @@ ENTRY(spurious_entries_start)
 	jmp	common_spurious
 	.align	8
     .endr
-END(spurious_entries_start)
+SYM_CODE_END(spurious_entries_start)
 
 SYM_CODE_START_LOCAL(common_spurious)
 	ASM_CLAC
@@ -1230,14 +1230,14 @@ ENDPROC(name)
 /* The include is where all of the SMP etc. interrupts come from */
 #include <asm/entry_arch.h>
 
-ENTRY(coprocessor_error)
+SYM_CODE_START(coprocessor_error)
 	ASM_CLAC
 	pushl	$0
 	pushl	$do_coprocessor_error
 	jmp	common_exception
-END(coprocessor_error)
+SYM_CODE_END(coprocessor_error)
 
-ENTRY(simd_coprocessor_error)
+SYM_CODE_START(simd_coprocessor_error)
 	ASM_CLAC
 	pushl	$0
 #ifdef CONFIG_X86_INVD_BUG
@@ -1249,96 +1249,96 @@ ENTRY(simd_coprocessor_error)
 	pushl	$do_simd_coprocessor_error
 #endif
 	jmp	common_exception
-END(simd_coprocessor_error)
+SYM_CODE_END(simd_coprocessor_error)
 
-ENTRY(device_not_available)
+SYM_CODE_START(device_not_available)
 	ASM_CLAC
 	pushl	$-1				# mark this as an int
 	pushl	$do_device_not_available
 	jmp	common_exception
-END(device_not_available)
+SYM_CODE_END(device_not_available)
 
 #ifdef CONFIG_PARAVIRT
-ENTRY(native_iret)
+SYM_CODE_START(native_iret)
 	iret
 	_ASM_EXTABLE(native_iret, iret_exc)
-END(native_iret)
+SYM_CODE_END(native_iret)
 #endif
 
-ENTRY(overflow)
+SYM_CODE_START(overflow)
 	ASM_CLAC
 	pushl	$0
 	pushl	$do_overflow
 	jmp	common_exception
-END(overflow)
+SYM_CODE_END(overflow)
 
-ENTRY(bounds)
+SYM_CODE_START(bounds)
 	ASM_CLAC
 	pushl	$0
 	pushl	$do_bounds
 	jmp	common_exception
-END(bounds)
+SYM_CODE_END(bounds)
 
-ENTRY(invalid_op)
+SYM_CODE_START(invalid_op)
 	ASM_CLAC
 	pushl	$0
 	pushl	$do_invalid_op
 	jmp	common_exception
-END(invalid_op)
+SYM_CODE_END(invalid_op)
 
-ENTRY(coprocessor_segment_overrun)
+SYM_CODE_START(coprocessor_segment_overrun)
 	ASM_CLAC
 	pushl	$0
 	pushl	$do_coprocessor_segment_overrun
 	jmp	common_exception
-END(coprocessor_segment_overrun)
+SYM_CODE_END(coprocessor_segment_overrun)
 
-ENTRY(invalid_TSS)
+SYM_CODE_START(invalid_TSS)
 	ASM_CLAC
 	pushl	$do_invalid_TSS
 	jmp	common_exception
-END(invalid_TSS)
+SYM_CODE_END(invalid_TSS)
 
-ENTRY(segment_not_present)
+SYM_CODE_START(segment_not_present)
 	ASM_CLAC
 	pushl	$do_segment_not_present
 	jmp	common_exception
-END(segment_not_present)
+SYM_CODE_END(segment_not_present)
 
-ENTRY(stack_segment)
+SYM_CODE_START(stack_segment)
 	ASM_CLAC
 	pushl	$do_stack_segment
 	jmp	common_exception
-END(stack_segment)
+SYM_CODE_END(stack_segment)
 
-ENTRY(alignment_check)
+SYM_CODE_START(alignment_check)
 	ASM_CLAC
 	pushl	$do_alignment_check
 	jmp	common_exception
-END(alignment_check)
+SYM_CODE_END(alignment_check)
 
-ENTRY(divide_error)
+SYM_CODE_START(divide_error)
 	ASM_CLAC
 	pushl	$0				# no error code
 	pushl	$do_divide_error
 	jmp	common_exception
-END(divide_error)
+SYM_CODE_END(divide_error)
 
 #ifdef CONFIG_X86_MCE
-ENTRY(machine_check)
+SYM_CODE_START(machine_check)
 	ASM_CLAC
 	pushl	$0
 	pushl	machine_check_vector
 	jmp	common_exception
-END(machine_check)
+SYM_CODE_END(machine_check)
 #endif
 
-ENTRY(spurious_interrupt_bug)
+SYM_CODE_START(spurious_interrupt_bug)
 	ASM_CLAC
 	pushl	$0
 	pushl	$do_spurious_interrupt_bug
 	jmp	common_exception
-END(spurious_interrupt_bug)
+SYM_CODE_END(spurious_interrupt_bug)
 
 #ifdef CONFIG_XEN_PV
 ENTRY(xen_hypervisor_callback)
@@ -1442,11 +1442,11 @@ BUILD_INTERRUPT3(hv_stimer0_callback_vector, HYPERV_STIMER0_VECTOR,
 
 #endif /* CONFIG_HYPERV */
 
-ENTRY(page_fault)
+SYM_CODE_START(page_fault)
 	ASM_CLAC
 	pushl	$do_page_fault
 	jmp	common_exception_read_cr2
-END(page_fault)
+SYM_CODE_END(page_fault)
 
 SYM_CODE_START_LOCAL_NOALIGN(common_exception_read_cr2)
 	/* the function address is in %gs's slot on the stack */
@@ -1495,7 +1495,7 @@ SYM_CODE_START_LOCAL_NOALIGN(common_exception)
 	jmp	ret_from_exception
 SYM_CODE_END(common_exception)
 
-ENTRY(debug)
+SYM_CODE_START(debug)
 	/*
 	 * Entry from sysenter is now handled in common_exception
 	 */
@@ -1503,7 +1503,7 @@ ENTRY(debug)
 	pushl	$-1				# mark this as an int
 	pushl	$do_debug
 	jmp	common_exception
-END(debug)
+SYM_CODE_END(debug)
 
 /*
  * NMI is doubly nasty.  It can happen on the first instruction of
@@ -1512,7 +1512,7 @@ END(debug)
  * switched stacks.  We handle both conditions by simply checking whether we
  * interrupted kernel code running on the SYSENTER stack.
  */
-ENTRY(nmi)
+SYM_CODE_START(nmi)
 	ASM_CLAC
 
 #ifdef CONFIG_X86_ESPFIX32
@@ -1577,9 +1577,9 @@ ENTRY(nmi)
 	lss	12+4(%esp), %esp		# back to espfix stack
 	jmp	.Lirq_return
 #endif
-END(nmi)
+SYM_CODE_END(nmi)
 
-ENTRY(int3)
+SYM_CODE_START(int3)
 	ASM_CLAC
 	pushl	$-1				# mark this as an int
 
@@ -1590,22 +1590,22 @@ ENTRY(int3)
 	movl	%esp, %eax			# pt_regs pointer
 	call	do_int3
 	jmp	ret_from_exception
-END(int3)
+SYM_CODE_END(int3)
 
-ENTRY(general_protection)
+SYM_CODE_START(general_protection)
 	pushl	$do_general_protection
 	jmp	common_exception
-END(general_protection)
+SYM_CODE_END(general_protection)
 
 #ifdef CONFIG_KVM_GUEST
-ENTRY(async_page_fault)
+SYM_CODE_START(async_page_fault)
 	ASM_CLAC
 	pushl	$do_async_page_fault
 	jmp	common_exception_read_cr2
-END(async_page_fault)
+SYM_CODE_END(async_page_fault)
 #endif
 
-ENTRY(rewind_stack_do_exit)
+SYM_CODE_START(rewind_stack_do_exit)
 	/* Prevent any naive code from trying to unwind to our caller. */
 	xorl	%ebp, %ebp
 
@@ -1614,4 +1614,4 @@ ENTRY(rewind_stack_do_exit)
 
 	call	do_exit
 1:	jmp 1b
-END(rewind_stack_do_exit)
+SYM_CODE_END(rewind_stack_do_exit)
diff --git a/arch/x86/kernel/ftrace_32.S b/arch/x86/kernel/ftrace_32.S
index a43ed4c..b4f495b 100644
--- a/arch/x86/kernel/ftrace_32.S
+++ b/arch/x86/kernel/ftrace_32.S
@@ -25,7 +25,7 @@ SYM_FUNC_START(function_hook)
 	ret
 SYM_FUNC_END(function_hook)
 
-ENTRY(ftrace_caller)
+SYM_CODE_START(ftrace_caller)
 
 #ifdef CONFIG_FRAME_POINTER
 	/*
@@ -87,7 +87,7 @@ ftrace_graph_call:
 /* This is weak to keep gas from relaxing the jumps */
 WEAK(ftrace_stub)
 	ret
-END(ftrace_caller)
+SYM_CODE_END(ftrace_caller)
 
 SYM_CODE_START(ftrace_regs_caller)
 	/*
@@ -166,7 +166,7 @@ SYM_INNER_LABEL(ftrace_regs_call, SYM_L_GLOBAL)
 SYM_CODE_END(ftrace_regs_caller)
 
 #ifdef CONFIG_FUNCTION_GRAPH_TRACER
-ENTRY(ftrace_graph_caller)
+SYM_CODE_START(ftrace_graph_caller)
 	pushl	%eax
 	pushl	%ecx
 	pushl	%edx
@@ -180,7 +180,7 @@ ENTRY(ftrace_graph_caller)
 	popl	%ecx
 	popl	%eax
 	ret
-END(ftrace_graph_caller)
+SYM_CODE_END(ftrace_graph_caller)
 
 .globl return_to_handler
 return_to_handler:
diff --git a/include/linux/linkage.h b/include/linux/linkage.h
index 19f3d79..5ffcf72 100644
--- a/include/linux/linkage.h
+++ b/include/linux/linkage.h
@@ -129,11 +129,13 @@
 	SYM_FUNC_START_WEAK(name)
 #endif
 
+#ifndef CONFIG_X86
 #ifndef END
 /* deprecated, use SYM_FUNC_END, SYM_DATA_END, or SYM_END */
 #define END(name) \
 	.size name, .-name
 #endif
+#endif /* CONFIG_X86 */
 
 #ifndef CONFIG_X86_64
 /* If symbol 'name' is treated as a subroutine (gets called, and returns)

^ permalink raw reply related	[flat|nested] 110+ messages in thread

* [tip: x86/asm] x86/asm/32: Change all ENTRY+ENDPROC to SYM_FUNC_*
@ 2019-10-18 16:30     ` tip-bot2 for Jiri Slaby
  0 siblings, 0 replies; 110+ messages in thread
From: tip-bot2 for Jiri Slaby @ 2019-10-18 16:30 UTC (permalink / raw)
  To: linux-tip-commits
  Cc: Jiri Slaby, Borislav Petkov, Allison Randal, Andrey Ryabinin,
	Andy Lutomirski, Andy Shevchenko, Ard Biesheuvel,
	Bill Metzenthen, Boris Ostrovsky, Darren Hart, David S. Miller,
	Greg Kroah-Hartman, Herbert Xu, H. Peter Anvin, Ingo Molnar,
	linux-arch, linux-crypto, linux-efi, linux-pm, Mark Rutland,
	Matt Fleming

The following commit has been merged into the x86/asm branch of tip:

Commit-ID:     6d685e5318e51b843ca50adeca50dc6300bf2cbb
Gitweb:        https://git.kernel.org/tip/6d685e5318e51b843ca50adeca50dc6300bf2cbb
Author:        Jiri Slaby <jslaby@suse.cz>
AuthorDate:    Fri, 11 Oct 2019 13:51:07 +02:00
Committer:     Borislav Petkov <bp@suse.de>
CommitterDate: Fri, 18 Oct 2019 12:03:43 +02:00

x86/asm/32: Change all ENTRY+ENDPROC to SYM_FUNC_*

These are all functions which are invoked from elsewhere, so annotate
them as global using the new SYM_FUNC_START and their ENDPROC's by
SYM_FUNC_END.

Now, ENTRY/ENDPROC can be forced to be undefined on X86, so do so.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: Allison Randal <allison@lohutok.net>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Andy Shevchenko <andy@infradead.org>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Bill Metzenthen <billm@melbpc.org.au>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: Darren Hart <dvhart@infradead.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: linux-arch@vger.kernel.org
Cc: linux-crypto@vger.kernel.org
Cc: linux-efi <linux-efi@vger.kernel.org>
Cc: linux-efi@vger.kernel.org
Cc: linux-pm@vger.kernel.org
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Matt Fleming <matt@codeblueprint.co.uk>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: platform-driver-x86@vger.kernel.org
Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Will Deacon <will@kernel.org>
Cc: x86-ml <x86@kernel.org>
Link: https://lkml.kernel.org/r/20191011115108.12392-28-jslaby@suse.cz
---
 arch/x86/boot/compressed/efi_stub_32.S     |  4 +--
 arch/x86/boot/compressed/head_32.S         | 12 ++++----
 arch/x86/crypto/serpent-sse2-i586-asm_32.S |  8 ++---
 arch/x86/crypto/twofish-i586-asm_32.S      |  8 ++---
 arch/x86/entry/entry_32.S                  | 24 ++++++++--------
 arch/x86/kernel/head_32.S                  | 16 +++++------
 arch/x86/lib/atomic64_386_32.S             |  4 +--
 arch/x86/lib/atomic64_cx8_32.S             | 32 ++++++++++-----------
 arch/x86/lib/checksum_32.S                 |  8 ++---
 arch/x86/math-emu/div_Xsig.S               |  4 +--
 arch/x86/math-emu/div_small.S              |  4 +--
 arch/x86/math-emu/mul_Xsig.S               | 12 ++++----
 arch/x86/math-emu/polynom_Xsig.S           |  4 +--
 arch/x86/math-emu/reg_norm.S               |  8 ++---
 arch/x86/math-emu/reg_round.S              |  4 +--
 arch/x86/math-emu/reg_u_add.S              |  4 +--
 arch/x86/math-emu/reg_u_div.S              |  4 +--
 arch/x86/math-emu/reg_u_mul.S              |  4 +--
 arch/x86/math-emu/reg_u_sub.S              |  4 +--
 arch/x86/math-emu/round_Xsig.S             |  8 ++---
 arch/x86/math-emu/shr_Xsig.S               |  4 +--
 arch/x86/math-emu/wm_shrx.S                |  8 ++---
 arch/x86/math-emu/wm_sqrt.S                |  4 +--
 arch/x86/platform/efi/efi_stub_32.S        |  4 +--
 arch/x86/power/hibernate_asm_32.S          |  8 ++---
 include/linux/linkage.h                    |  8 +----
 26 files changed, 104 insertions(+), 108 deletions(-)

diff --git a/arch/x86/boot/compressed/efi_stub_32.S b/arch/x86/boot/compressed/efi_stub_32.S
index 257e341..ed6c351 100644
--- a/arch/x86/boot/compressed/efi_stub_32.S
+++ b/arch/x86/boot/compressed/efi_stub_32.S
@@ -24,7 +24,7 @@
  */
 
 .text
-ENTRY(efi_call_phys)
+SYM_FUNC_START(efi_call_phys)
 	/*
 	 * 0. The function can only be called in Linux kernel. So CS has been
 	 * set to 0x0010, DS and SS have been set to 0x0018. In EFI, I found
@@ -77,7 +77,7 @@ ENTRY(efi_call_phys)
 	movl	saved_return_addr(%edx), %ecx
 	pushl	%ecx
 	ret
-ENDPROC(efi_call_phys)
+SYM_FUNC_END(efi_call_phys)
 .previous
 
 .data
diff --git a/arch/x86/boot/compressed/head_32.S b/arch/x86/boot/compressed/head_32.S
index f9e2a80..f2dfd6d 100644
--- a/arch/x86/boot/compressed/head_32.S
+++ b/arch/x86/boot/compressed/head_32.S
@@ -61,7 +61,7 @@
 	.hidden _egot
 
 	__HEAD
-ENTRY(startup_32)
+SYM_FUNC_START(startup_32)
 	cld
 	/*
 	 * Test KEEP_SEGMENTS flag to see if the bootloader is asking
@@ -142,14 +142,14 @@ ENTRY(startup_32)
  */
 	leal	.Lrelocated(%ebx), %eax
 	jmp	*%eax
-ENDPROC(startup_32)
+SYM_FUNC_END(startup_32)
 
 #ifdef CONFIG_EFI_STUB
 /*
  * We don't need the return address, so set up the stack so efi_main() can find
  * its arguments.
  */
-ENTRY(efi_pe_entry)
+SYM_FUNC_START(efi_pe_entry)
 	add	$0x4, %esp
 
 	call	1f
@@ -174,9 +174,9 @@ ENTRY(efi_pe_entry)
 	pushl	%eax
 	pushl	%ecx
 	jmp	2f		/* Skip efi_config initialization */
-ENDPROC(efi_pe_entry)
+SYM_FUNC_END(efi_pe_entry)
 
-ENTRY(efi32_stub_entry)
+SYM_FUNC_START(efi32_stub_entry)
 	add	$0x4, %esp
 	popl	%ecx
 	popl	%edx
@@ -205,7 +205,7 @@ fail:
 	movl	BP_code32_start(%esi), %eax
 	leal	startup_32(%eax), %eax
 	jmp	*%eax
-ENDPROC(efi32_stub_entry)
+SYM_FUNC_END(efi32_stub_entry)
 #endif
 
 	.text
diff --git a/arch/x86/crypto/serpent-sse2-i586-asm_32.S b/arch/x86/crypto/serpent-sse2-i586-asm_32.S
index e5c4a46..6379b99 100644
--- a/arch/x86/crypto/serpent-sse2-i586-asm_32.S
+++ b/arch/x86/crypto/serpent-sse2-i586-asm_32.S
@@ -497,7 +497,7 @@
 	pxor t0,		x3; \
 	movdqu x3,		(3*4*4)(out);
 
-ENTRY(__serpent_enc_blk_4way)
+SYM_FUNC_START(__serpent_enc_blk_4way)
 	/* input:
 	 *	arg_ctx(%esp): ctx, CTX
 	 *	arg_dst(%esp): dst
@@ -559,9 +559,9 @@ ENTRY(__serpent_enc_blk_4way)
 	xor_blocks(%eax, RA, RB, RC, RD, RT0, RT1, RE);
 
 	ret;
-ENDPROC(__serpent_enc_blk_4way)
+SYM_FUNC_END(__serpent_enc_blk_4way)
 
-ENTRY(serpent_dec_blk_4way)
+SYM_FUNC_START(serpent_dec_blk_4way)
 	/* input:
 	 *	arg_ctx(%esp): ctx, CTX
 	 *	arg_dst(%esp): dst
@@ -613,4 +613,4 @@ ENTRY(serpent_dec_blk_4way)
 	write_blocks(%eax, RC, RD, RB, RE, RT0, RT1, RA);
 
 	ret;
-ENDPROC(serpent_dec_blk_4way)
+SYM_FUNC_END(serpent_dec_blk_4way)
diff --git a/arch/x86/crypto/twofish-i586-asm_32.S b/arch/x86/crypto/twofish-i586-asm_32.S
index 290cc4e..a6f09e4 100644
--- a/arch/x86/crypto/twofish-i586-asm_32.S
+++ b/arch/x86/crypto/twofish-i586-asm_32.S
@@ -207,7 +207,7 @@
 	xor	%esi,		d ## D;\
 	ror	$1,		d ## D;
 
-ENTRY(twofish_enc_blk)
+SYM_FUNC_START(twofish_enc_blk)
 	push	%ebp			/* save registers according to calling convention*/
 	push    %ebx
 	push    %esi
@@ -261,9 +261,9 @@ ENTRY(twofish_enc_blk)
 	pop	%ebp
 	mov	$1,	%eax
 	ret
-ENDPROC(twofish_enc_blk)
+SYM_FUNC_END(twofish_enc_blk)
 
-ENTRY(twofish_dec_blk)
+SYM_FUNC_START(twofish_dec_blk)
 	push	%ebp			/* save registers according to calling convention*/
 	push    %ebx
 	push    %esi
@@ -318,4 +318,4 @@ ENTRY(twofish_dec_blk)
 	pop	%ebp
 	mov	$1,	%eax
 	ret
-ENDPROC(twofish_dec_blk)
+SYM_FUNC_END(twofish_dec_blk)
diff --git a/arch/x86/entry/entry_32.S b/arch/x86/entry/entry_32.S
index 0ecc12f..a987b62 100644
--- a/arch/x86/entry/entry_32.S
+++ b/arch/x86/entry/entry_32.S
@@ -757,7 +757,7 @@ SYM_CODE_END(__switch_to_asm)
  * asmlinkage function so its argument has to be pushed on the stack.  This
  * wrapper creates a proper "end of stack" frame header before the call.
  */
-ENTRY(schedule_tail_wrapper)
+SYM_FUNC_START(schedule_tail_wrapper)
 	FRAME_BEGIN
 
 	pushl	%eax
@@ -766,7 +766,7 @@ ENTRY(schedule_tail_wrapper)
 
 	FRAME_END
 	ret
-ENDPROC(schedule_tail_wrapper)
+SYM_FUNC_END(schedule_tail_wrapper)
 /*
  * A newly forked process directly context switches into this address.
  *
@@ -885,7 +885,7 @@ SYM_CODE_END(xen_sysenter_target)
  * ebp  user stack
  * 0(%ebp) arg6
  */
-ENTRY(entry_SYSENTER_32)
+SYM_FUNC_START(entry_SYSENTER_32)
 	/*
 	 * On entry-stack with all userspace-regs live - save and
 	 * restore eflags and %eax to use it as scratch-reg for the cr3
@@ -1013,7 +1013,7 @@ ENTRY(entry_SYSENTER_32)
 	popfl
 	jmp	.Lsysenter_flags_fixed
 SYM_ENTRY(__end_SYSENTER_singlestep_region, SYM_L_GLOBAL, SYM_A_NONE)
-ENDPROC(entry_SYSENTER_32)
+SYM_FUNC_END(entry_SYSENTER_32)
 
 /*
  * 32-bit legacy system call entry.
@@ -1043,7 +1043,7 @@ ENDPROC(entry_SYSENTER_32)
  * edi  arg5
  * ebp  arg6
  */
-ENTRY(entry_INT80_32)
+SYM_FUNC_START(entry_INT80_32)
 	ASM_CLAC
 	pushl	%eax			/* pt_regs->orig_ax */
 
@@ -1120,7 +1120,7 @@ SYM_CODE_START(iret_exc)
 SYM_CODE_END(iret_exc)
 .previous
 	_ASM_EXTABLE(.Lirq_return, iret_exc)
-ENDPROC(entry_INT80_32)
+SYM_FUNC_END(entry_INT80_32)
 
 .macro FIXUP_ESPFIX_STACK
 /*
@@ -1213,7 +1213,7 @@ SYM_CODE_START_LOCAL(common_interrupt)
 SYM_CODE_END(common_interrupt)
 
 #define BUILD_INTERRUPT3(name, nr, fn)			\
-ENTRY(name)						\
+SYM_FUNC_START(name)					\
 	ASM_CLAC;					\
 	pushl	$~(nr);					\
 	SAVE_ALL switch_stacks=1;			\
@@ -1222,7 +1222,7 @@ ENTRY(name)						\
 	movl	%esp, %eax;				\
 	call	fn;					\
 	jmp	ret_from_intr;				\
-ENDPROC(name)
+SYM_FUNC_END(name)
 
 #define BUILD_INTERRUPT(name, nr)		\
 	BUILD_INTERRUPT3(name, nr, smp_##name);	\
@@ -1341,7 +1341,7 @@ SYM_CODE_START(spurious_interrupt_bug)
 SYM_CODE_END(spurious_interrupt_bug)
 
 #ifdef CONFIG_XEN_PV
-ENTRY(xen_hypervisor_callback)
+SYM_FUNC_START(xen_hypervisor_callback)
 	pushl	$-1				/* orig_ax = -1 => not a system call */
 	SAVE_ALL
 	ENCODE_FRAME_POINTER
@@ -1369,7 +1369,7 @@ SYM_INNER_LABEL_ALIGN(xen_do_upcall, SYM_L_GLOBAL)
 	call	xen_maybe_preempt_hcall
 #endif
 	jmp	ret_from_intr
-ENDPROC(xen_hypervisor_callback)
+SYM_FUNC_END(xen_hypervisor_callback)
 
 /*
  * Hypervisor uses this for application faults while it executes.
@@ -1383,7 +1383,7 @@ ENDPROC(xen_hypervisor_callback)
  * to pop the stack frame we end up in an infinite loop of failsafe callbacks.
  * We distinguish between categories by maintaining a status value in EAX.
  */
-ENTRY(xen_failsafe_callback)
+SYM_FUNC_START(xen_failsafe_callback)
 	pushl	%eax
 	movl	$1, %eax
 1:	mov	4(%esp), %ds
@@ -1420,7 +1420,7 @@ ENTRY(xen_failsafe_callback)
 	_ASM_EXTABLE(2b, 7b)
 	_ASM_EXTABLE(3b, 8b)
 	_ASM_EXTABLE(4b, 9b)
-ENDPROC(xen_failsafe_callback)
+SYM_FUNC_END(xen_failsafe_callback)
 #endif /* CONFIG_XEN_PV */
 
 #ifdef CONFIG_XEN_PVHVM
diff --git a/arch/x86/kernel/head_32.S b/arch/x86/kernel/head_32.S
index 7029bba..ea24aa5 100644
--- a/arch/x86/kernel/head_32.S
+++ b/arch/x86/kernel/head_32.S
@@ -180,12 +180,12 @@ SYM_CODE_END(startup_32)
  * up already except stack. We just set up stack here. Then call
  * start_secondary().
  */
-ENTRY(start_cpu0)
+SYM_FUNC_START(start_cpu0)
 	movl initial_stack, %ecx
 	movl %ecx, %esp
 	call *(initial_code)
 1:	jmp 1b
-ENDPROC(start_cpu0)
+SYM_FUNC_END(start_cpu0)
 #endif
 
 /*
@@ -196,7 +196,7 @@ ENDPROC(start_cpu0)
  * If cpu hotplug is not supported then this code can go in init section
  * which will be freed later
  */
-ENTRY(startup_32_smp)
+SYM_FUNC_START(startup_32_smp)
 	cld
 	movl $(__BOOT_DS),%eax
 	movl %eax,%ds
@@ -363,7 +363,7 @@ ENTRY(startup_32_smp)
 
 	call *(initial_code)
 1:	jmp 1b
-ENDPROC(startup_32_smp)
+SYM_FUNC_END(startup_32_smp)
 
 #include "verify_cpu.S"
 
@@ -393,7 +393,7 @@ setup_once:
 	andl $0,setup_once_ref	/* Once is enough, thanks */
 	ret
 
-ENTRY(early_idt_handler_array)
+SYM_FUNC_START(early_idt_handler_array)
 	# 36(%esp) %eflags
 	# 32(%esp) %cs
 	# 28(%esp) %eip
@@ -408,7 +408,7 @@ ENTRY(early_idt_handler_array)
 	i = i + 1
 	.fill early_idt_handler_array + i*EARLY_IDT_HANDLER_SIZE - ., 1, 0xcc
 	.endr
-ENDPROC(early_idt_handler_array)
+SYM_FUNC_END(early_idt_handler_array)
 	
 SYM_CODE_START_LOCAL(early_idt_handler_common)
 	/*
@@ -464,7 +464,7 @@ SYM_CODE_START_LOCAL(early_idt_handler_common)
 SYM_CODE_END(early_idt_handler_common)
 
 /* This is the default interrupt "handler" :-) */
-ENTRY(early_ignore_irq)
+SYM_FUNC_START(early_ignore_irq)
 	cld
 #ifdef CONFIG_PRINTK
 	pushl %eax
@@ -499,7 +499,7 @@ ENTRY(early_ignore_irq)
 hlt_loop:
 	hlt
 	jmp hlt_loop
-ENDPROC(early_ignore_irq)
+SYM_FUNC_END(early_ignore_irq)
 
 __INITDATA
 	.align 4
diff --git a/arch/x86/lib/atomic64_386_32.S b/arch/x86/lib/atomic64_386_32.S
index e0788ba..3b65441 100644
--- a/arch/x86/lib/atomic64_386_32.S
+++ b/arch/x86/lib/atomic64_386_32.S
@@ -20,10 +20,10 @@
 
 #define BEGIN(op) \
 .macro endp; \
-ENDPROC(atomic64_##op##_386); \
+SYM_FUNC_END(atomic64_##op##_386); \
 .purgem endp; \
 .endm; \
-ENTRY(atomic64_##op##_386); \
+SYM_FUNC_START(atomic64_##op##_386); \
 	LOCK v;
 
 #define ENDP endp
diff --git a/arch/x86/lib/atomic64_cx8_32.S b/arch/x86/lib/atomic64_cx8_32.S
index 843d978..1c5c81c 100644
--- a/arch/x86/lib/atomic64_cx8_32.S
+++ b/arch/x86/lib/atomic64_cx8_32.S
@@ -16,12 +16,12 @@
 	cmpxchg8b (\reg)
 .endm
 
-ENTRY(atomic64_read_cx8)
+SYM_FUNC_START(atomic64_read_cx8)
 	read64 %ecx
 	ret
-ENDPROC(atomic64_read_cx8)
+SYM_FUNC_END(atomic64_read_cx8)
 
-ENTRY(atomic64_set_cx8)
+SYM_FUNC_START(atomic64_set_cx8)
 1:
 /* we don't need LOCK_PREFIX since aligned 64-bit writes
  * are atomic on 586 and newer */
@@ -29,19 +29,19 @@ ENTRY(atomic64_set_cx8)
 	jne 1b
 
 	ret
-ENDPROC(atomic64_set_cx8)
+SYM_FUNC_END(atomic64_set_cx8)
 
-ENTRY(atomic64_xchg_cx8)
+SYM_FUNC_START(atomic64_xchg_cx8)
 1:
 	LOCK_PREFIX
 	cmpxchg8b (%esi)
 	jne 1b
 
 	ret
-ENDPROC(atomic64_xchg_cx8)
+SYM_FUNC_END(atomic64_xchg_cx8)
 
 .macro addsub_return func ins insc
-ENTRY(atomic64_\func\()_return_cx8)
+SYM_FUNC_START(atomic64_\func\()_return_cx8)
 	pushl %ebp
 	pushl %ebx
 	pushl %esi
@@ -69,14 +69,14 @@ ENTRY(atomic64_\func\()_return_cx8)
 	popl %ebx
 	popl %ebp
 	ret
-ENDPROC(atomic64_\func\()_return_cx8)
+SYM_FUNC_END(atomic64_\func\()_return_cx8)
 .endm
 
 addsub_return add add adc
 addsub_return sub sub sbb
 
 .macro incdec_return func ins insc
-ENTRY(atomic64_\func\()_return_cx8)
+SYM_FUNC_START(atomic64_\func\()_return_cx8)
 	pushl %ebx
 
 	read64 %esi
@@ -94,13 +94,13 @@ ENTRY(atomic64_\func\()_return_cx8)
 	movl %ecx, %edx
 	popl %ebx
 	ret
-ENDPROC(atomic64_\func\()_return_cx8)
+SYM_FUNC_END(atomic64_\func\()_return_cx8)
 .endm
 
 incdec_return inc add adc
 incdec_return dec sub sbb
 
-ENTRY(atomic64_dec_if_positive_cx8)
+SYM_FUNC_START(atomic64_dec_if_positive_cx8)
 	pushl %ebx
 
 	read64 %esi
@@ -119,9 +119,9 @@ ENTRY(atomic64_dec_if_positive_cx8)
 	movl %ecx, %edx
 	popl %ebx
 	ret
-ENDPROC(atomic64_dec_if_positive_cx8)
+SYM_FUNC_END(atomic64_dec_if_positive_cx8)
 
-ENTRY(atomic64_add_unless_cx8)
+SYM_FUNC_START(atomic64_add_unless_cx8)
 	pushl %ebp
 	pushl %ebx
 /* these just push these two parameters on the stack */
@@ -155,9 +155,9 @@ ENTRY(atomic64_add_unless_cx8)
 	jne 2b
 	xorl %eax, %eax
 	jmp 3b
-ENDPROC(atomic64_add_unless_cx8)
+SYM_FUNC_END(atomic64_add_unless_cx8)
 
-ENTRY(atomic64_inc_not_zero_cx8)
+SYM_FUNC_START(atomic64_inc_not_zero_cx8)
 	pushl %ebx
 
 	read64 %esi
@@ -177,4 +177,4 @@ ENTRY(atomic64_inc_not_zero_cx8)
 3:
 	popl %ebx
 	ret
-ENDPROC(atomic64_inc_not_zero_cx8)
+SYM_FUNC_END(atomic64_inc_not_zero_cx8)
diff --git a/arch/x86/lib/checksum_32.S b/arch/x86/lib/checksum_32.S
index 74256bd..4742e8f 100644
--- a/arch/x86/lib/checksum_32.S
+++ b/arch/x86/lib/checksum_32.S
@@ -46,7 +46,7 @@ unsigned int csum_partial(const unsigned char * buff, int len, unsigned int sum)
 	   * Fortunately, it is easy to convert 2-byte alignment to 4-byte
 	   * alignment for the unrolled loop.
 	   */		
-ENTRY(csum_partial)
+SYM_FUNC_START(csum_partial)
 	pushl %esi
 	pushl %ebx
 	movl 20(%esp),%eax	# Function arg: unsigned int sum
@@ -128,13 +128,13 @@ ENTRY(csum_partial)
 	popl %ebx
 	popl %esi
 	ret
-ENDPROC(csum_partial)
+SYM_FUNC_END(csum_partial)
 
 #else
 
 /* Version for PentiumII/PPro */
 
-ENTRY(csum_partial)
+SYM_FUNC_START(csum_partial)
 	pushl %esi
 	pushl %ebx
 	movl 20(%esp),%eax	# Function arg: unsigned int sum
@@ -246,7 +246,7 @@ ENTRY(csum_partial)
 	popl %ebx
 	popl %esi
 	ret
-ENDPROC(csum_partial)
+SYM_FUNC_END(csum_partial)
 				
 #endif
 EXPORT_SYMBOL(csum_partial)
diff --git a/arch/x86/math-emu/div_Xsig.S b/arch/x86/math-emu/div_Xsig.S
index ee08449..951da2a 100644
--- a/arch/x86/math-emu/div_Xsig.S
+++ b/arch/x86/math-emu/div_Xsig.S
@@ -75,7 +75,7 @@ FPU_result_1:
 
 
 .text
-ENTRY(div_Xsig)
+SYM_FUNC_START(div_Xsig)
 	pushl	%ebp
 	movl	%esp,%ebp
 #ifndef NON_REENTRANT_FPU
@@ -364,4 +364,4 @@ L_bugged_2:
 	pop	%ebx
 	jmp	L_exit
 #endif /* PARANOID */ 
-ENDPROC(div_Xsig)
+SYM_FUNC_END(div_Xsig)
diff --git a/arch/x86/math-emu/div_small.S b/arch/x86/math-emu/div_small.S
index 8f5025c..d047d18 100644
--- a/arch/x86/math-emu/div_small.S
+++ b/arch/x86/math-emu/div_small.S
@@ -19,7 +19,7 @@
 #include "fpu_emu.h"
 
 .text
-ENTRY(FPU_div_small)
+SYM_FUNC_START(FPU_div_small)
 	pushl	%ebp
 	movl	%esp,%ebp
 
@@ -45,4 +45,4 @@ ENTRY(FPU_div_small)
 
 	leave
 	ret
-ENDPROC(FPU_div_small)
+SYM_FUNC_END(FPU_div_small)
diff --git a/arch/x86/math-emu/mul_Xsig.S b/arch/x86/math-emu/mul_Xsig.S
index 3e48912..4afc7b1 100644
--- a/arch/x86/math-emu/mul_Xsig.S
+++ b/arch/x86/math-emu/mul_Xsig.S
@@ -25,7 +25,7 @@
 #include "fpu_emu.h"
 
 .text
-ENTRY(mul32_Xsig)
+SYM_FUNC_START(mul32_Xsig)
 	pushl %ebp
 	movl %esp,%ebp
 	subl $16,%esp
@@ -63,10 +63,10 @@ ENTRY(mul32_Xsig)
 	popl %esi
 	leave
 	ret
-ENDPROC(mul32_Xsig)
+SYM_FUNC_END(mul32_Xsig)
 
 
-ENTRY(mul64_Xsig)
+SYM_FUNC_START(mul64_Xsig)
 	pushl %ebp
 	movl %esp,%ebp
 	subl $16,%esp
@@ -116,11 +116,11 @@ ENTRY(mul64_Xsig)
 	popl %esi
 	leave
 	ret
-ENDPROC(mul64_Xsig)
+SYM_FUNC_END(mul64_Xsig)
 
 
 
-ENTRY(mul_Xsig_Xsig)
+SYM_FUNC_START(mul_Xsig_Xsig)
 	pushl %ebp
 	movl %esp,%ebp
 	subl $16,%esp
@@ -176,4 +176,4 @@ ENTRY(mul_Xsig_Xsig)
 	popl %esi
 	leave
 	ret
-ENDPROC(mul_Xsig_Xsig)
+SYM_FUNC_END(mul_Xsig_Xsig)
diff --git a/arch/x86/math-emu/polynom_Xsig.S b/arch/x86/math-emu/polynom_Xsig.S
index 604f0b2..702315e 100644
--- a/arch/x86/math-emu/polynom_Xsig.S
+++ b/arch/x86/math-emu/polynom_Xsig.S
@@ -37,7 +37,7 @@
 #define OVERFLOWED      -16(%ebp)	/* addition overflow flag */
 
 .text
-ENTRY(polynomial_Xsig)
+SYM_FUNC_START(polynomial_Xsig)
 	pushl	%ebp
 	movl	%esp,%ebp
 	subl	$32,%esp
@@ -134,4 +134,4 @@ L_accum_done:
 	popl	%esi
 	leave
 	ret
-ENDPROC(polynomial_Xsig)
+SYM_FUNC_END(polynomial_Xsig)
diff --git a/arch/x86/math-emu/reg_norm.S b/arch/x86/math-emu/reg_norm.S
index 7f6b439..cad1d60 100644
--- a/arch/x86/math-emu/reg_norm.S
+++ b/arch/x86/math-emu/reg_norm.S
@@ -22,7 +22,7 @@
 
 
 .text
-ENTRY(FPU_normalize)
+SYM_FUNC_START(FPU_normalize)
 	pushl	%ebp
 	movl	%esp,%ebp
 	pushl	%ebx
@@ -95,12 +95,12 @@ L_overflow:
 	call	arith_overflow
 	pop	%ebx
 	jmp	L_exit
-ENDPROC(FPU_normalize)
+SYM_FUNC_END(FPU_normalize)
 
 
 
 /* Normalise without reporting underflow or overflow */
-ENTRY(FPU_normalize_nuo)
+SYM_FUNC_START(FPU_normalize_nuo)
 	pushl	%ebp
 	movl	%esp,%ebp
 	pushl	%ebx
@@ -147,4 +147,4 @@ L_exit_nuo_zero:
 	popl	%ebx
 	leave
 	ret
-ENDPROC(FPU_normalize_nuo)
+SYM_FUNC_END(FPU_normalize_nuo)
diff --git a/arch/x86/math-emu/reg_round.S b/arch/x86/math-emu/reg_round.S
index 0456342..11a1f79 100644
--- a/arch/x86/math-emu/reg_round.S
+++ b/arch/x86/math-emu/reg_round.S
@@ -109,7 +109,7 @@ FPU_denormal:
 .globl fpu_Arith_exit
 
 /* Entry point when called from C */
-ENTRY(FPU_round)
+SYM_FUNC_START(FPU_round)
 	pushl	%ebp
 	movl	%esp,%ebp
 	pushl	%esi
@@ -708,4 +708,4 @@ L_exception_exit:
 	jmp	fpu_reg_round_special_exit
 #endif /* PARANOID */ 
 
-ENDPROC(FPU_round)
+SYM_FUNC_END(FPU_round)
diff --git a/arch/x86/math-emu/reg_u_add.S b/arch/x86/math-emu/reg_u_add.S
index 50fe9f8..9c9e2c8 100644
--- a/arch/x86/math-emu/reg_u_add.S
+++ b/arch/x86/math-emu/reg_u_add.S
@@ -32,7 +32,7 @@
 #include "control_w.h"
 
 .text
-ENTRY(FPU_u_add)
+SYM_FUNC_START(FPU_u_add)
 	pushl	%ebp
 	movl	%esp,%ebp
 	pushl	%esi
@@ -166,4 +166,4 @@ L_exit:
 	leave
 	ret
 #endif /* PARANOID */
-ENDPROC(FPU_u_add)
+SYM_FUNC_END(FPU_u_add)
diff --git a/arch/x86/math-emu/reg_u_div.S b/arch/x86/math-emu/reg_u_div.S
index 94d545e..e2fb5c2 100644
--- a/arch/x86/math-emu/reg_u_div.S
+++ b/arch/x86/math-emu/reg_u_div.S
@@ -75,7 +75,7 @@ FPU_ovfl_flag:
 #define DEST	PARAM3
 
 .text
-ENTRY(FPU_u_div)
+SYM_FUNC_START(FPU_u_div)
 	pushl	%ebp
 	movl	%esp,%ebp
 #ifndef NON_REENTRANT_FPU
@@ -471,4 +471,4 @@ L_exit:
 	ret
 #endif /* PARANOID */ 
 
-ENDPROC(FPU_u_div)
+SYM_FUNC_END(FPU_u_div)
diff --git a/arch/x86/math-emu/reg_u_mul.S b/arch/x86/math-emu/reg_u_mul.S
index 21cde47..0c779c8 100644
--- a/arch/x86/math-emu/reg_u_mul.S
+++ b/arch/x86/math-emu/reg_u_mul.S
@@ -45,7 +45,7 @@ FPU_accum_1:
 
 
 .text
-ENTRY(FPU_u_mul)
+SYM_FUNC_START(FPU_u_mul)
 	pushl	%ebp
 	movl	%esp,%ebp
 #ifndef NON_REENTRANT_FPU
@@ -147,4 +147,4 @@ L_exit:
 	ret
 #endif /* PARANOID */ 
 
-ENDPROC(FPU_u_mul)
+SYM_FUNC_END(FPU_u_mul)
diff --git a/arch/x86/math-emu/reg_u_sub.S b/arch/x86/math-emu/reg_u_sub.S
index f05dea7..e9bb7c2 100644
--- a/arch/x86/math-emu/reg_u_sub.S
+++ b/arch/x86/math-emu/reg_u_sub.S
@@ -33,7 +33,7 @@
 #include "control_w.h"
 
 .text
-ENTRY(FPU_u_sub)
+SYM_FUNC_START(FPU_u_sub)
 	pushl	%ebp
 	movl	%esp,%ebp
 	pushl	%esi
@@ -271,4 +271,4 @@ L_exit:
 	popl	%esi
 	leave
 	ret
-ENDPROC(FPU_u_sub)
+SYM_FUNC_END(FPU_u_sub)
diff --git a/arch/x86/math-emu/round_Xsig.S b/arch/x86/math-emu/round_Xsig.S
index 226a51e..d9d7de8 100644
--- a/arch/x86/math-emu/round_Xsig.S
+++ b/arch/x86/math-emu/round_Xsig.S
@@ -23,7 +23,7 @@
 
 
 .text
-ENTRY(round_Xsig)
+SYM_FUNC_START(round_Xsig)
 	pushl	%ebp
 	movl	%esp,%ebp
 	pushl	%ebx		/* Reserve some space */
@@ -79,11 +79,11 @@ L_exit:
 	popl	%ebx
 	leave
 	ret
-ENDPROC(round_Xsig)
+SYM_FUNC_END(round_Xsig)
 
 
 
-ENTRY(norm_Xsig)
+SYM_FUNC_START(norm_Xsig)
 	pushl	%ebp
 	movl	%esp,%ebp
 	pushl	%ebx		/* Reserve some space */
@@ -139,4 +139,4 @@ L_n_exit:
 	popl	%ebx
 	leave
 	ret
-ENDPROC(norm_Xsig)
+SYM_FUNC_END(norm_Xsig)
diff --git a/arch/x86/math-emu/shr_Xsig.S b/arch/x86/math-emu/shr_Xsig.S
index 96f4779..726af98 100644
--- a/arch/x86/math-emu/shr_Xsig.S
+++ b/arch/x86/math-emu/shr_Xsig.S
@@ -22,7 +22,7 @@
 #include "fpu_emu.h"
 
 .text
-ENTRY(shr_Xsig)
+SYM_FUNC_START(shr_Xsig)
 	push	%ebp
 	movl	%esp,%ebp
 	pushl	%esi
@@ -86,4 +86,4 @@ L_more_than_95:
 	popl	%esi
 	leave
 	ret
-ENDPROC(shr_Xsig)
+SYM_FUNC_END(shr_Xsig)
diff --git a/arch/x86/math-emu/wm_shrx.S b/arch/x86/math-emu/wm_shrx.S
index d588874..4fc8917 100644
--- a/arch/x86/math-emu/wm_shrx.S
+++ b/arch/x86/math-emu/wm_shrx.S
@@ -33,7 +33,7 @@
  |   Results returned in the 64 bit arg and eax.                             |
  +---------------------------------------------------------------------------*/
 
-ENTRY(FPU_shrx)
+SYM_FUNC_START(FPU_shrx)
 	push	%ebp
 	movl	%esp,%ebp
 	pushl	%esi
@@ -93,7 +93,7 @@ L_more_than_95:
 	popl	%esi
 	leave
 	ret
-ENDPROC(FPU_shrx)
+SYM_FUNC_END(FPU_shrx)
 
 
 /*---------------------------------------------------------------------------+
@@ -112,7 +112,7 @@ ENDPROC(FPU_shrx)
  |   part which has been shifted out of the arg.                             |
  |   Results returned in the 64 bit arg and eax.                             |
  +---------------------------------------------------------------------------*/
-ENTRY(FPU_shrxs)
+SYM_FUNC_START(FPU_shrxs)
 	push	%ebp
 	movl	%esp,%ebp
 	pushl	%esi
@@ -204,4 +204,4 @@ Ls_more_than_95:
 	popl	%esi
 	leave
 	ret
-ENDPROC(FPU_shrxs)
+SYM_FUNC_END(FPU_shrxs)
diff --git a/arch/x86/math-emu/wm_sqrt.S b/arch/x86/math-emu/wm_sqrt.S
index f031c0e..3b2b581 100644
--- a/arch/x86/math-emu/wm_sqrt.S
+++ b/arch/x86/math-emu/wm_sqrt.S
@@ -75,7 +75,7 @@ FPU_fsqrt_arg_0:
 
 
 .text
-ENTRY(wm_sqrt)
+SYM_FUNC_START(wm_sqrt)
 	pushl	%ebp
 	movl	%esp,%ebp
 #ifndef NON_REENTRANT_FPU
@@ -469,4 +469,4 @@ sqrt_more_prec_large:
 /* Our estimate is too large */
 	movl	$0x7fffff00,%eax
 	jmp	sqrt_round_result
-ENDPROC(wm_sqrt)
+SYM_FUNC_END(wm_sqrt)
diff --git a/arch/x86/platform/efi/efi_stub_32.S b/arch/x86/platform/efi/efi_stub_32.S
index ab2e91e..eed8b5b 100644
--- a/arch/x86/platform/efi/efi_stub_32.S
+++ b/arch/x86/platform/efi/efi_stub_32.S
@@ -22,7 +22,7 @@
  */
 
 .text
-ENTRY(efi_call_phys)
+SYM_FUNC_START(efi_call_phys)
 	/*
 	 * 0. The function can only be called in Linux kernel. So CS has been
 	 * set to 0x0010, DS and SS have been set to 0x0018. In EFI, I found
@@ -114,7 +114,7 @@ ENTRY(efi_call_phys)
 	movl	(%edx), %ecx
 	pushl	%ecx
 	ret
-ENDPROC(efi_call_phys)
+SYM_FUNC_END(efi_call_phys)
 .previous
 
 .data
diff --git a/arch/x86/power/hibernate_asm_32.S b/arch/x86/power/hibernate_asm_32.S
index a19ed3d..8786653 100644
--- a/arch/x86/power/hibernate_asm_32.S
+++ b/arch/x86/power/hibernate_asm_32.S
@@ -16,7 +16,7 @@
 
 .text
 
-ENTRY(swsusp_arch_suspend)
+SYM_FUNC_START(swsusp_arch_suspend)
 	movl %esp, saved_context_esp
 	movl %ebx, saved_context_ebx
 	movl %ebp, saved_context_ebp
@@ -33,7 +33,7 @@ ENTRY(swsusp_arch_suspend)
 	call swsusp_save
 	FRAME_END
 	ret
-ENDPROC(swsusp_arch_suspend)
+SYM_FUNC_END(swsusp_arch_suspend)
 
 SYM_CODE_START(restore_image)
 	/* prepare to jump to the image kernel */
@@ -82,7 +82,7 @@ SYM_CODE_END(core_restore_code)
 
 	/* code below belongs to the image kernel */
 	.align PAGE_SIZE
-ENTRY(restore_registers)
+SYM_FUNC_START(restore_registers)
 	/* go back to the original page tables */
 	movl	%ebp, %cr3
 	movl	mmu_cr4_features, %ecx
@@ -109,4 +109,4 @@ ENTRY(restore_registers)
 	movl	%eax, in_suspend
 
 	ret
-ENDPROC(restore_registers)
+SYM_FUNC_END(restore_registers)
diff --git a/include/linux/linkage.h b/include/linux/linkage.h
index 5ffcf72..331a230 100644
--- a/include/linux/linkage.h
+++ b/include/linux/linkage.h
@@ -112,15 +112,13 @@
 	.globl name ASM_NL \
 	name:
 #endif
-#endif
 
-#ifndef CONFIG_X86_64
 #ifndef ENTRY
 /* deprecated, use SYM_FUNC_START */
 #define ENTRY(name) \
 	SYM_FUNC_START(name)
 #endif
-#endif /* CONFIG_X86_64 */
+#endif /* CONFIG_X86 */
 #endif /* LINKER_SCRIPT */
 
 #ifndef WEAK
@@ -135,9 +133,7 @@
 #define END(name) \
 	.size name, .-name
 #endif
-#endif /* CONFIG_X86 */
 
-#ifndef CONFIG_X86_64
 /* If symbol 'name' is treated as a subroutine (gets called, and returns)
  * then please use ENDPROC to mark 'name' as STT_FUNC for the benefit of
  * static analysis tools such as stack depth analyzer.
@@ -147,7 +143,7 @@
 #define ENDPROC(name) \
 	SYM_FUNC_END(name)
 #endif
-#endif /* CONFIG_X86_64 */
+#endif /* CONFIG_X86 */
 
 /* === generic annotations === */
 

^ permalink raw reply related	[flat|nested] 110+ messages in thread

* [tip: x86/asm] x86/asm/32: Add ENDs to some functions and relabel with SYM_CODE_*
  2019-10-11 11:51   ` [Xen-devel] " Jiri Slaby
  (?)
@ 2019-10-18 16:30     ` tip-bot2 for Jiri Slaby
  -1 siblings, 0 replies; 110+ messages in thread
From: tip-bot2 for Jiri Slaby @ 2019-10-18 16:30 UTC (permalink / raw)
  To: linux-tip-commits
  Cc: Jiri Slaby, Borislav Petkov, Boris Ostrovsky, Rafael J. Wysocki,
	Andy Lutomirski, H. Peter Anvin, Ingo Molnar, Josh Poimboeuf,
	Juergen Gross, Len Brown, linux-arch, linux-pm, Pavel Machek,
	Peter Zijlstra, Pingfan Liu, Stefano Stabellini,
	Steven Rostedt (VMware),
	Thomas Gleixner, x86-ml, xen-devel, Ingo Molnar, Borislav Petkov,
	linux-kernel

The following commit has been merged into the x86/asm branch of tip:

Commit-ID:     78762b0e79bc1dd01347be061abdf505202152c9
Gitweb:        https://git.kernel.org/tip/78762b0e79bc1dd01347be061abdf505202152c9
Author:        Jiri Slaby <jslaby@suse.cz>
AuthorDate:    Fri, 11 Oct 2019 13:51:05 +02:00
Committer:     Borislav Petkov <bp@suse.de>
CommitterDate: Fri, 18 Oct 2019 11:58:33 +02:00

x86/asm/32: Add ENDs to some functions and relabel with SYM_CODE_*

All these are functions which are invoked from elsewhere but they are
not typical C functions. So annotate them using the new SYM_CODE_START.
All these were not balanced with any END, so mark their ends by
SYM_CODE_END, appropriately.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> [xen bits]
Reviewed-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> [hibernate]
Cc: Andy Lutomirski <luto@kernel.org>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Juergen Gross <jgross@suse.com>
Cc: Len Brown <len.brown@intel.com>
Cc: linux-arch@vger.kernel.org
Cc: linux-pm@vger.kernel.org
Cc: Pavel Machek <pavel@ucw.cz>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Pingfan Liu <kernelfans@gmail.com>
Cc: Stefano Stabellini <sstabellini@kernel.org>
Cc: "Steven Rostedt (VMware)" <rostedt@goodmis.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: x86-ml <x86@kernel.org>
Cc: xen-devel@lists.xenproject.org
Link: https://lkml.kernel.org/r/20191011115108.12392-26-jslaby@suse.cz
---
 arch/x86/entry/entry_32.S            | 3 ++-
 arch/x86/kernel/acpi/wakeup_32.S     | 7 ++++---
 arch/x86/kernel/ftrace_32.S          | 3 ++-
 arch/x86/kernel/head_32.S            | 3 ++-
 arch/x86/power/hibernate_asm_32.S    | 6 ++++--
 arch/x86/realmode/rm/trampoline_32.S | 6 ++++--
 arch/x86/xen/xen-asm_32.S            | 7 ++++---
 7 files changed, 22 insertions(+), 13 deletions(-)

diff --git a/arch/x86/entry/entry_32.S b/arch/x86/entry/entry_32.S
index 4900a6a..64fe7aa 100644
--- a/arch/x86/entry/entry_32.S
+++ b/arch/x86/entry/entry_32.S
@@ -847,9 +847,10 @@ SYM_ENTRY(__begin_SYSENTER_singlestep_region, SYM_L_GLOBAL, SYM_A_NONE)
  * Xen doesn't set %esp to be precisely what the normal SYSENTER
  * entry point expects, so fix it up before using the normal path.
  */
-ENTRY(xen_sysenter_target)
+SYM_CODE_START(xen_sysenter_target)
 	addl	$5*4, %esp			/* remove xen-provided frame */
 	jmp	.Lsysenter_past_esp
+SYM_CODE_END(xen_sysenter_target)
 #endif
 
 /*
diff --git a/arch/x86/kernel/acpi/wakeup_32.S b/arch/x86/kernel/acpi/wakeup_32.S
index 4272492..daf88f8 100644
--- a/arch/x86/kernel/acpi/wakeup_32.S
+++ b/arch/x86/kernel/acpi/wakeup_32.S
@@ -9,8 +9,7 @@
 	.code32
 	ALIGN
 
-ENTRY(wakeup_pmode_return)
-wakeup_pmode_return:
+SYM_CODE_START(wakeup_pmode_return)
 	movw	$__KERNEL_DS, %ax
 	movw	%ax, %ss
 	movw	%ax, %fs
@@ -39,6 +38,7 @@ wakeup_pmode_return:
 	# jump to place where we left off
 	movl	saved_eip, %eax
 	jmp	*%eax
+SYM_CODE_END(wakeup_pmode_return)
 
 bogus_magic:
 	jmp	bogus_magic
@@ -72,7 +72,7 @@ restore_registers:
 	popfl
 	ret
 
-ENTRY(do_suspend_lowlevel)
+SYM_CODE_START(do_suspend_lowlevel)
 	call	save_processor_state
 	call	save_registers
 	pushl	$3
@@ -87,6 +87,7 @@ ret_point:
 	call	restore_registers
 	call	restore_processor_state
 	ret
+SYM_CODE_END(do_suspend_lowlevel)
 
 .data
 ALIGN
diff --git a/arch/x86/kernel/ftrace_32.S b/arch/x86/kernel/ftrace_32.S
index 219be13..a43ed4c 100644
--- a/arch/x86/kernel/ftrace_32.S
+++ b/arch/x86/kernel/ftrace_32.S
@@ -89,7 +89,7 @@ WEAK(ftrace_stub)
 	ret
 END(ftrace_caller)
 
-ENTRY(ftrace_regs_caller)
+SYM_CODE_START(ftrace_regs_caller)
 	/*
 	 * We're here from an mcount/fentry CALL, and the stack frame looks like:
 	 *
@@ -163,6 +163,7 @@ SYM_INNER_LABEL(ftrace_regs_call, SYM_L_GLOBAL)
 	popl	%eax
 
 	jmp	.Lftrace_ret
+SYM_CODE_END(ftrace_regs_caller)
 
 #ifdef CONFIG_FUNCTION_GRAPH_TRACER
 ENTRY(ftrace_graph_caller)
diff --git a/arch/x86/kernel/head_32.S b/arch/x86/kernel/head_32.S
index e2b3e6c..7029bba 100644
--- a/arch/x86/kernel/head_32.S
+++ b/arch/x86/kernel/head_32.S
@@ -64,7 +64,7 @@ RESERVE_BRK(pagetables, INIT_MAP_SIZE)
  * can.
  */
 __HEAD
-ENTRY(startup_32)
+SYM_CODE_START(startup_32)
 	movl pa(initial_stack),%ecx
 	
 	/* test KEEP_SEGMENTS flag to see if the bootloader is asking
@@ -172,6 +172,7 @@ num_subarch_entries = (. - subarch_entries) / 4
 #else
 	jmp .Ldefault_entry
 #endif /* CONFIG_PARAVIRT */
+SYM_CODE_END(startup_32)
 
 #ifdef CONFIG_HOTPLUG_CPU
 /*
diff --git a/arch/x86/power/hibernate_asm_32.S b/arch/x86/power/hibernate_asm_32.S
index 6fe3830..a19ed3d 100644
--- a/arch/x86/power/hibernate_asm_32.S
+++ b/arch/x86/power/hibernate_asm_32.S
@@ -35,7 +35,7 @@ ENTRY(swsusp_arch_suspend)
 	ret
 ENDPROC(swsusp_arch_suspend)
 
-ENTRY(restore_image)
+SYM_CODE_START(restore_image)
 	/* prepare to jump to the image kernel */
 	movl	restore_jump_address, %ebx
 	movl	restore_cr3, %ebp
@@ -45,9 +45,10 @@ ENTRY(restore_image)
 	/* jump to relocated restore code */
 	movl	relocated_restore_code, %eax
 	jmpl	*%eax
+SYM_CODE_END(restore_image)
 
 /* code below has been relocated to a safe page */
-ENTRY(core_restore_code)
+SYM_CODE_START(core_restore_code)
 	movl	temp_pgt, %eax
 	movl	%eax, %cr3
 
@@ -77,6 +78,7 @@ copy_loop:
 
 done:
 	jmpl	*%ebx
+SYM_CODE_END(core_restore_code)
 
 	/* code below belongs to the image kernel */
 	.align PAGE_SIZE
diff --git a/arch/x86/realmode/rm/trampoline_32.S b/arch/x86/realmode/rm/trampoline_32.S
index ff00594..3fad907 100644
--- a/arch/x86/realmode/rm/trampoline_32.S
+++ b/arch/x86/realmode/rm/trampoline_32.S
@@ -29,7 +29,7 @@
 	.code16
 
 	.balign	PAGE_SIZE
-ENTRY(trampoline_start)
+SYM_CODE_START(trampoline_start)
 	wbinvd			# Needed for NUMA-Q should be harmless for others
 
 	LJMPW_RM(1f)
@@ -54,11 +54,13 @@ ENTRY(trampoline_start)
 	lmsw	%dx			# into protected mode
 
 	ljmpl	$__BOOT_CS, $pa_startup_32
+SYM_CODE_END(trampoline_start)
 
 	.section ".text32","ax"
 	.code32
-ENTRY(startup_32)			# note: also used from wakeup_asm.S
+SYM_CODE_START(startup_32)			# note: also used from wakeup_asm.S
 	jmp	*%eax
+SYM_CODE_END(startup_32)
 
 	.bss
 	.balign 8
diff --git a/arch/x86/xen/xen-asm_32.S b/arch/x86/xen/xen-asm_32.S
index c15db06..8b8f835 100644
--- a/arch/x86/xen/xen-asm_32.S
+++ b/arch/x86/xen/xen-asm_32.S
@@ -56,7 +56,7 @@
 	_ASM_EXTABLE(1b,2b)
 .endm
 
-ENTRY(xen_iret)
+SYM_CODE_START(xen_iret)
 	/* test eflags for special cases */
 	testl $(X86_EFLAGS_VM | XEN_EFLAGS_NMI), 8(%esp)
 	jnz hyper_iret
@@ -122,6 +122,7 @@ xen_iret_end_crit:
 hyper_iret:
 	/* put this out of line since its very rarely used */
 	jmp hypercall_page + __HYPERVISOR_iret * 32
+SYM_CODE_END(xen_iret)
 
 	.globl xen_iret_start_crit, xen_iret_end_crit
 
@@ -165,7 +166,7 @@ hyper_iret:
  * SAVE_ALL state before going on, since it's usermode state which we
  * eventually need to restore.
  */
-ENTRY(xen_iret_crit_fixup)
+SYM_CODE_START(xen_iret_crit_fixup)
 	/*
 	 * Paranoia: Make sure we're really coming from kernel space.
 	 * One could imagine a case where userspace jumps into the
@@ -204,4 +205,4 @@ ENTRY(xen_iret_crit_fixup)
 
 	lea 4(%edi), %esp		/* point esp to new frame */
 2:	jmp xen_do_upcall
-
+SYM_CODE_END(xen_iret_crit_fixup)

^ permalink raw reply related	[flat|nested] 110+ messages in thread

* [tip: x86/asm] x86/asm: Change all ENTRY+ENDPROC to SYM_FUNC_*
  2019-10-11 11:51   ` [Xen-devel] " Jiri Slaby
@ 2019-10-18 16:30     ` tip-bot2 for Jiri Slaby
  -1 siblings, 0 replies; 110+ messages in thread
From: tip-bot2 for Jiri Slaby @ 2019-10-18 16:30 UTC (permalink / raw)
  To: linux-tip-commits
  Cc: Kate Stewart, Mark Rutland, linux-efi, Wanpeng Li, Wei Huang,
	kvm ML, Radim Krčmář,
	Matt Fleming, Dave Hansen, x86-ml, platform-driver-x86,
	Pavel Machek, H. Peter Anvin, Andrey Ryabinin, Jiri Slaby,
	Thomas Gleixner, linux-arch, Stefano Stabellini, Herbert Xu,
	Joerg Roedel, Rafael J. Wysocki, Ingo Molnar, Peter Zijlstra,
	Ingo Molnar

The following commit has been merged into the x86/asm branch of tip:

Commit-ID:     6dcc5627f6aec4cb1d1494d06a48d8061db06a04
Gitweb:        https://git.kernel.org/tip/6dcc5627f6aec4cb1d1494d06a48d8061db06a04
Author:        Jiri Slaby <jslaby@suse.cz>
AuthorDate:    Fri, 11 Oct 2019 13:51:04 +02:00
Committer:     Borislav Petkov <bp@suse.de>
CommitterDate: Fri, 18 Oct 2019 11:58:33 +02:00

x86/asm: Change all ENTRY+ENDPROC to SYM_FUNC_*

These are all functions which are invoked from elsewhere, so annotate
them as global using the new SYM_FUNC_START and their ENDPROC's by
SYM_FUNC_END.

Make sure ENTRY/ENDPROC is not defined on X86_64, given these were the
last users.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> [hibernate]
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> [xen bits]
Acked-by: Herbert Xu <herbert@gondor.apana.org.au> [crypto]
Cc: Allison Randal <allison@lohutok.net>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Andy Shevchenko <andy@infradead.org>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Armijn Hemel <armijn@tjaldur.nl>
Cc: Cao jin <caoj.fnst@cn.fujitsu.com>
Cc: Darren Hart <dvhart@infradead.org>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Enrico Weigelt <info@metux.net>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jim Mattson <jmattson@google.com>
Cc: Joerg Roedel <joro@8bytes.org>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Juergen Gross <jgross@suse.com>
Cc: Kate Stewart <kstewart@linuxfoundation.org>
Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Cc: kvm ML <kvm@vger.kernel.org>
Cc: Len Brown <len.brown@intel.com>
Cc: linux-arch@vger.kernel.org
Cc: linux-crypto@vger.kernel.org
Cc: linux-efi <linux-efi@vger.kernel.org>
Cc: linux-efi@vger.kernel.org
Cc: linux-pm@vger.kernel.org
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Matt Fleming <matt@codeblueprint.co.uk>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: platform-driver-x86@vger.kernel.org
Cc: "Radim Krčmář" <rkrcmar@redhat.com>
Cc: Sean Christopherson <sean.j.christopherson@intel.com>
Cc: Stefano Stabellini <sstabellini@kernel.org>
Cc: "Steven Rostedt (VMware)" <rostedt@goodmis.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vitaly Kuznetsov <vkuznets@redhat.com>
Cc: Wanpeng Li <wanpengli@tencent.com>
Cc: Wei Huang <wei@redhat.com>
Cc: x86-ml <x86@kernel.org>
Cc: xen-devel@lists.xenproject.org
Cc: Xiaoyao Li <xiaoyao.li@linux.intel.com>
Link: https://lkml.kernel.org/r/20191011115108.12392-25-jslaby@suse.cz
---
 arch/x86/boot/compressed/efi_thunk_64.S      |  4 +-
 arch/x86/boot/compressed/head_64.S           | 16 ++---
 arch/x86/boot/compressed/mem_encrypt.S       |  8 +--
 arch/x86/crypto/aegis128-aesni-asm.S         | 28 ++++-----
 arch/x86/crypto/aes_ctrby8_avx-x86_64.S      | 12 ++--
 arch/x86/crypto/aesni-intel_asm.S            | 60 +++++++++----------
 arch/x86/crypto/aesni-intel_avx-x86_64.S     | 32 +++++-----
 arch/x86/crypto/blowfish-x86_64-asm_64.S     | 16 ++---
 arch/x86/crypto/camellia-aesni-avx-asm_64.S  | 24 ++++----
 arch/x86/crypto/camellia-aesni-avx2-asm_64.S | 24 ++++----
 arch/x86/crypto/camellia-x86_64-asm_64.S     | 16 ++---
 arch/x86/crypto/cast5-avx-x86_64-asm_64.S    | 16 ++---
 arch/x86/crypto/cast6-avx-x86_64-asm_64.S    | 24 ++++----
 arch/x86/crypto/chacha-avx2-x86_64.S         | 12 ++--
 arch/x86/crypto/chacha-avx512vl-x86_64.S     | 12 ++--
 arch/x86/crypto/chacha-ssse3-x86_64.S        | 12 ++--
 arch/x86/crypto/crc32-pclmul_asm.S           |  4 +-
 arch/x86/crypto/crc32c-pcl-intel-asm_64.S    |  4 +-
 arch/x86/crypto/crct10dif-pcl-asm_64.S       |  4 +-
 arch/x86/crypto/des3_ede-asm_64.S            |  8 +--
 arch/x86/crypto/ghash-clmulni-intel_asm.S    |  8 +--
 arch/x86/crypto/nh-avx2-x86_64.S             |  4 +-
 arch/x86/crypto/nh-sse2-x86_64.S             |  4 +-
 arch/x86/crypto/poly1305-avx2-x86_64.S       |  4 +-
 arch/x86/crypto/poly1305-sse2-x86_64.S       |  8 +--
 arch/x86/crypto/serpent-avx-x86_64-asm_64.S  | 24 ++++----
 arch/x86/crypto/serpent-avx2-asm_64.S        | 24 ++++----
 arch/x86/crypto/serpent-sse2-x86_64-asm_64.S |  8 +--
 arch/x86/crypto/sha1_avx2_x86_64_asm.S       |  4 +-
 arch/x86/crypto/sha1_ni_asm.S                |  4 +-
 arch/x86/crypto/sha1_ssse3_asm.S             |  4 +-
 arch/x86/crypto/sha256-avx-asm.S             |  4 +-
 arch/x86/crypto/sha256-avx2-asm.S            |  4 +-
 arch/x86/crypto/sha256-ssse3-asm.S           |  4 +-
 arch/x86/crypto/sha256_ni_asm.S              |  4 +-
 arch/x86/crypto/sha512-avx-asm.S             |  4 +-
 arch/x86/crypto/sha512-avx2-asm.S            |  4 +-
 arch/x86/crypto/sha512-ssse3-asm.S           |  4 +-
 arch/x86/crypto/twofish-avx-x86_64-asm_64.S  | 24 ++++----
 arch/x86/crypto/twofish-x86_64-asm_64-3way.S |  8 +--
 arch/x86/crypto/twofish-x86_64-asm_64.S      |  8 +--
 arch/x86/entry/entry_64.S                    | 10 +--
 arch/x86/entry/entry_64_compat.S             |  4 +-
 arch/x86/kernel/acpi/wakeup_64.S             |  8 +--
 arch/x86/kernel/ftrace_64.S                  | 20 +++---
 arch/x86/kernel/irqflags.S                   |  8 +--
 arch/x86/kvm/vmx/vmenter.S                   | 12 ++--
 arch/x86/lib/checksum_32.S                   |  8 +--
 arch/x86/lib/clear_page_64.S                 | 12 ++--
 arch/x86/lib/cmpxchg16b_emu.S                |  4 +-
 arch/x86/lib/cmpxchg8b_emu.S                 |  4 +-
 arch/x86/lib/copy_page_64.S                  |  4 +-
 arch/x86/lib/copy_user_64.S                  | 16 ++---
 arch/x86/lib/csum-copy_64.S                  |  4 +-
 arch/x86/lib/getuser.S                       | 16 ++---
 arch/x86/lib/hweight.S                       |  8 +--
 arch/x86/lib/iomap_copy_64.S                 |  4 +-
 arch/x86/lib/memcpy_64.S                     |  4 +-
 arch/x86/lib/memmove_64.S                    |  4 +-
 arch/x86/lib/memset_64.S                     |  4 +-
 arch/x86/lib/msr-reg.S                       |  8 +--
 arch/x86/lib/putuser.S                       | 16 ++---
 arch/x86/lib/retpoline.S                     |  4 +-
 arch/x86/mm/mem_encrypt_boot.S               |  8 +--
 arch/x86/platform/efi/efi_stub_64.S          |  4 +-
 arch/x86/platform/efi/efi_thunk_64.S         |  4 +-
 arch/x86/power/hibernate_asm_64.S            |  8 +--
 arch/x86/xen/xen-asm.S                       | 28 ++++-----
 arch/x86/xen/xen-asm_64.S                    | 16 ++---
 include/linux/linkage.h                      |  4 +-
 70 files changed, 379 insertions(+), 375 deletions(-)

diff --git a/arch/x86/boot/compressed/efi_thunk_64.S b/arch/x86/boot/compressed/efi_thunk_64.S
index 3131207..5939136 100644
--- a/arch/x86/boot/compressed/efi_thunk_64.S
+++ b/arch/x86/boot/compressed/efi_thunk_64.S
@@ -23,7 +23,7 @@
 
 	.code64
 	.text
-ENTRY(efi64_thunk)
+SYM_FUNC_START(efi64_thunk)
 	push	%rbp
 	push	%rbx
 
@@ -97,7 +97,7 @@ ENTRY(efi64_thunk)
 	pop	%rbx
 	pop	%rbp
 	ret
-ENDPROC(efi64_thunk)
+SYM_FUNC_END(efi64_thunk)
 
 SYM_FUNC_START_LOCAL(efi_exit32)
 	movq	func_rt_ptr(%rip), %rax
diff --git a/arch/x86/boot/compressed/head_64.S b/arch/x86/boot/compressed/head_64.S
index 5580046..58a512e 100644
--- a/arch/x86/boot/compressed/head_64.S
+++ b/arch/x86/boot/compressed/head_64.S
@@ -45,7 +45,7 @@
 
 	__HEAD
 	.code32
-ENTRY(startup_32)
+SYM_FUNC_START(startup_32)
 	/*
 	 * 32bit entry is 0 and it is ABI so immutable!
 	 * If we come here directly from a bootloader,
@@ -222,11 +222,11 @@ ENTRY(startup_32)
 
 	/* Jump from 32bit compatibility mode into 64bit mode. */
 	lret
-ENDPROC(startup_32)
+SYM_FUNC_END(startup_32)
 
 #ifdef CONFIG_EFI_MIXED
 	.org 0x190
-ENTRY(efi32_stub_entry)
+SYM_FUNC_START(efi32_stub_entry)
 	add	$0x4, %esp		/* Discard return address */
 	popl	%ecx
 	popl	%edx
@@ -245,7 +245,7 @@ ENTRY(efi32_stub_entry)
 	movl	%eax, efi_config(%ebp)
 
 	jmp	startup_32
-ENDPROC(efi32_stub_entry)
+SYM_FUNC_END(efi32_stub_entry)
 #endif
 
 	.code64
@@ -447,7 +447,7 @@ SYM_CODE_END(startup_64)
 #ifdef CONFIG_EFI_STUB
 
 /* The entry point for the PE/COFF executable is efi_pe_entry. */
-ENTRY(efi_pe_entry)
+SYM_FUNC_START(efi_pe_entry)
 	movq	%rcx, efi64_config(%rip)	/* Handle */
 	movq	%rdx, efi64_config+8(%rip) /* EFI System table pointer */
 
@@ -496,10 +496,10 @@ fail:
 	movl	BP_code32_start(%esi), %eax
 	leaq	startup_64(%rax), %rax
 	jmp	*%rax
-ENDPROC(efi_pe_entry)
+SYM_FUNC_END(efi_pe_entry)
 
 	.org 0x390
-ENTRY(efi64_stub_entry)
+SYM_FUNC_START(efi64_stub_entry)
 	movq	%rdi, efi64_config(%rip)	/* Handle */
 	movq	%rsi, efi64_config+8(%rip) /* EFI System table pointer */
 
@@ -508,7 +508,7 @@ ENTRY(efi64_stub_entry)
 
 	movq	%rdx, %rsi
 	jmp	handover_entry
-ENDPROC(efi64_stub_entry)
+SYM_FUNC_END(efi64_stub_entry)
 #endif
 
 	.text
diff --git a/arch/x86/boot/compressed/mem_encrypt.S b/arch/x86/boot/compressed/mem_encrypt.S
index 28d703c..dd07e7b 100644
--- a/arch/x86/boot/compressed/mem_encrypt.S
+++ b/arch/x86/boot/compressed/mem_encrypt.S
@@ -15,7 +15,7 @@
 
 	.text
 	.code32
-ENTRY(get_sev_encryption_bit)
+SYM_FUNC_START(get_sev_encryption_bit)
 	xor	%eax, %eax
 
 #ifdef CONFIG_AMD_MEM_ENCRYPT
@@ -65,10 +65,10 @@ ENTRY(get_sev_encryption_bit)
 #endif	/* CONFIG_AMD_MEM_ENCRYPT */
 
 	ret
-ENDPROC(get_sev_encryption_bit)
+SYM_FUNC_END(get_sev_encryption_bit)
 
 	.code64
-ENTRY(set_sev_encryption_mask)
+SYM_FUNC_START(set_sev_encryption_mask)
 #ifdef CONFIG_AMD_MEM_ENCRYPT
 	push	%rbp
 	push	%rdx
@@ -90,7 +90,7 @@ ENTRY(set_sev_encryption_mask)
 
 	xor	%rax, %rax
 	ret
-ENDPROC(set_sev_encryption_mask)
+SYM_FUNC_END(set_sev_encryption_mask)
 
 	.data
 
diff --git a/arch/x86/crypto/aegis128-aesni-asm.S b/arch/x86/crypto/aegis128-aesni-asm.S
index b7026fd..51d46d9 100644
--- a/arch/x86/crypto/aegis128-aesni-asm.S
+++ b/arch/x86/crypto/aegis128-aesni-asm.S
@@ -186,7 +186,7 @@ SYM_FUNC_END(__store_partial)
 /*
  * void crypto_aegis128_aesni_init(void *state, const void *key, const void *iv);
  */
-ENTRY(crypto_aegis128_aesni_init)
+SYM_FUNC_START(crypto_aegis128_aesni_init)
 	FRAME_BEGIN
 
 	/* load IV: */
@@ -226,13 +226,13 @@ ENTRY(crypto_aegis128_aesni_init)
 
 	FRAME_END
 	ret
-ENDPROC(crypto_aegis128_aesni_init)
+SYM_FUNC_END(crypto_aegis128_aesni_init)
 
 /*
  * void crypto_aegis128_aesni_ad(void *state, unsigned int length,
  *                               const void *data);
  */
-ENTRY(crypto_aegis128_aesni_ad)
+SYM_FUNC_START(crypto_aegis128_aesni_ad)
 	FRAME_BEGIN
 
 	cmp $0x10, LEN
@@ -378,7 +378,7 @@ ENTRY(crypto_aegis128_aesni_ad)
 .Lad_out:
 	FRAME_END
 	ret
-ENDPROC(crypto_aegis128_aesni_ad)
+SYM_FUNC_END(crypto_aegis128_aesni_ad)
 
 .macro encrypt_block a s0 s1 s2 s3 s4 i
 	movdq\a (\i * 0x10)(SRC), MSG
@@ -402,7 +402,7 @@ ENDPROC(crypto_aegis128_aesni_ad)
  * void crypto_aegis128_aesni_enc(void *state, unsigned int length,
  *                                const void *src, void *dst);
  */
-ENTRY(crypto_aegis128_aesni_enc)
+SYM_FUNC_START(crypto_aegis128_aesni_enc)
 	FRAME_BEGIN
 
 	cmp $0x10, LEN
@@ -493,13 +493,13 @@ ENTRY(crypto_aegis128_aesni_enc)
 .Lenc_out:
 	FRAME_END
 	ret
-ENDPROC(crypto_aegis128_aesni_enc)
+SYM_FUNC_END(crypto_aegis128_aesni_enc)
 
 /*
  * void crypto_aegis128_aesni_enc_tail(void *state, unsigned int length,
  *                                     const void *src, void *dst);
  */
-ENTRY(crypto_aegis128_aesni_enc_tail)
+SYM_FUNC_START(crypto_aegis128_aesni_enc_tail)
 	FRAME_BEGIN
 
 	/* load the state: */
@@ -533,7 +533,7 @@ ENTRY(crypto_aegis128_aesni_enc_tail)
 
 	FRAME_END
 	ret
-ENDPROC(crypto_aegis128_aesni_enc_tail)
+SYM_FUNC_END(crypto_aegis128_aesni_enc_tail)
 
 .macro decrypt_block a s0 s1 s2 s3 s4 i
 	movdq\a (\i * 0x10)(SRC), MSG
@@ -556,7 +556,7 @@ ENDPROC(crypto_aegis128_aesni_enc_tail)
  * void crypto_aegis128_aesni_dec(void *state, unsigned int length,
  *                                const void *src, void *dst);
  */
-ENTRY(crypto_aegis128_aesni_dec)
+SYM_FUNC_START(crypto_aegis128_aesni_dec)
 	FRAME_BEGIN
 
 	cmp $0x10, LEN
@@ -647,13 +647,13 @@ ENTRY(crypto_aegis128_aesni_dec)
 .Ldec_out:
 	FRAME_END
 	ret
-ENDPROC(crypto_aegis128_aesni_dec)
+SYM_FUNC_END(crypto_aegis128_aesni_dec)
 
 /*
  * void crypto_aegis128_aesni_dec_tail(void *state, unsigned int length,
  *                                     const void *src, void *dst);
  */
-ENTRY(crypto_aegis128_aesni_dec_tail)
+SYM_FUNC_START(crypto_aegis128_aesni_dec_tail)
 	FRAME_BEGIN
 
 	/* load the state: */
@@ -697,13 +697,13 @@ ENTRY(crypto_aegis128_aesni_dec_tail)
 
 	FRAME_END
 	ret
-ENDPROC(crypto_aegis128_aesni_dec_tail)
+SYM_FUNC_END(crypto_aegis128_aesni_dec_tail)
 
 /*
  * void crypto_aegis128_aesni_final(void *state, void *tag_xor,
  *                                  u64 assoclen, u64 cryptlen);
  */
-ENTRY(crypto_aegis128_aesni_final)
+SYM_FUNC_START(crypto_aegis128_aesni_final)
 	FRAME_BEGIN
 
 	/* load the state: */
@@ -744,4 +744,4 @@ ENTRY(crypto_aegis128_aesni_final)
 
 	FRAME_END
 	ret
-ENDPROC(crypto_aegis128_aesni_final)
+SYM_FUNC_END(crypto_aegis128_aesni_final)
diff --git a/arch/x86/crypto/aes_ctrby8_avx-x86_64.S b/arch/x86/crypto/aes_ctrby8_avx-x86_64.S
index 5f6a5af..ec437db 100644
--- a/arch/x86/crypto/aes_ctrby8_avx-x86_64.S
+++ b/arch/x86/crypto/aes_ctrby8_avx-x86_64.S
@@ -544,11 +544,11 @@ ddq_add_8:
  * aes_ctr_enc_128_avx_by8(void *in, void *iv, void *keys, void *out,
  *			unsigned int num_bytes)
  */
-ENTRY(aes_ctr_enc_128_avx_by8)
+SYM_FUNC_START(aes_ctr_enc_128_avx_by8)
 	/* call the aes main loop */
 	do_aes_ctrmain KEY_128
 
-ENDPROC(aes_ctr_enc_128_avx_by8)
+SYM_FUNC_END(aes_ctr_enc_128_avx_by8)
 
 /*
  * routine to do AES192 CTR enc/decrypt "by8"
@@ -557,11 +557,11 @@ ENDPROC(aes_ctr_enc_128_avx_by8)
  * aes_ctr_enc_192_avx_by8(void *in, void *iv, void *keys, void *out,
  *			unsigned int num_bytes)
  */
-ENTRY(aes_ctr_enc_192_avx_by8)
+SYM_FUNC_START(aes_ctr_enc_192_avx_by8)
 	/* call the aes main loop */
 	do_aes_ctrmain KEY_192
 
-ENDPROC(aes_ctr_enc_192_avx_by8)
+SYM_FUNC_END(aes_ctr_enc_192_avx_by8)
 
 /*
  * routine to do AES256 CTR enc/decrypt "by8"
@@ -570,8 +570,8 @@ ENDPROC(aes_ctr_enc_192_avx_by8)
  * aes_ctr_enc_256_avx_by8(void *in, void *iv, void *keys, void *out,
  *			unsigned int num_bytes)
  */
-ENTRY(aes_ctr_enc_256_avx_by8)
+SYM_FUNC_START(aes_ctr_enc_256_avx_by8)
 	/* call the aes main loop */
 	do_aes_ctrmain KEY_256
 
-ENDPROC(aes_ctr_enc_256_avx_by8)
+SYM_FUNC_END(aes_ctr_enc_256_avx_by8)