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From: Jiri Slaby <jslaby@suse.cz>
To: mingo@redhat.com
Cc: tglx@linutronix.de, hpa@zytor.com, x86@kernel.org,
	jpoimboe@redhat.com, linux-kernel@vger.kernel.org,
	Jiri Slaby <jslaby@suse.cz>
Subject: [PATCH v3 06/29] x86: assembly, annotate functions by ENTRY, not GLOBAL
Date: Fri, 21 Apr 2017 16:12:42 +0200	[thread overview]
Message-ID: <20170421141305.25180-6-jslaby@suse.cz> (raw)
In-Reply-To: <20170421141305.25180-1-jslaby@suse.cz>

GLOBAL is meant for global symbols, but not functions. Use ENTRY which
is dedicated for global functions:
* it aligns the functions properly
* it is expected to have a corresponding ENDPROC too.

startup_64, which uses .globl explicitly, is converted too.

Besides that, x86's custom GLOBAL macro is going to die very soon.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: <x86@kernel.org>
---
 arch/x86/boot/copy.S             | 8 ++++----
 arch/x86/boot/pmjump.S           | 4 ++--
 arch/x86/entry/entry_64_compat.S | 3 +--
 arch/x86/kernel/ftrace_64.S      | 2 +-
 arch/x86/kernel/head_64.S        | 5 +++--
 5 files changed, 11 insertions(+), 11 deletions(-)

diff --git a/arch/x86/boot/copy.S b/arch/x86/boot/copy.S
index 15d9f74b0008..030a7bde51da 100644
--- a/arch/x86/boot/copy.S
+++ b/arch/x86/boot/copy.S
@@ -17,7 +17,7 @@
 	.code16
 	.text
 
-GLOBAL(memcpy)
+ENTRY(memcpy)
 	pushw	%si
 	pushw	%di
 	movw	%ax, %di
@@ -33,7 +33,7 @@ GLOBAL(memcpy)
 	retl
 ENDPROC(memcpy)
 
-GLOBAL(memset)
+ENTRY(memset)
 	pushw	%di
 	movw	%ax, %di
 	movzbl	%dl, %eax
@@ -48,7 +48,7 @@ GLOBAL(memset)
 	retl
 ENDPROC(memset)
 
-GLOBAL(copy_from_fs)
+ENTRY(copy_from_fs)
 	pushw	%ds
 	pushw	%fs
 	popw	%ds
@@ -57,7 +57,7 @@ GLOBAL(copy_from_fs)
 	retl
 ENDPROC(copy_from_fs)
 
-GLOBAL(copy_to_fs)
+ENTRY(copy_to_fs)
 	pushw	%es
 	pushw	%fs
 	popw	%es
diff --git a/arch/x86/boot/pmjump.S b/arch/x86/boot/pmjump.S
index 3e0edc6d2a20..6528f78a79b5 100644
--- a/arch/x86/boot/pmjump.S
+++ b/arch/x86/boot/pmjump.S
@@ -23,7 +23,7 @@
 /*
  * void protected_mode_jump(u32 entrypoint, u32 bootparams);
  */
-GLOBAL(protected_mode_jump)
+ENTRY(protected_mode_jump)
 	movl	%edx, %esi		# Pointer to boot_params table
 
 	xorl	%ebx, %ebx
@@ -48,7 +48,7 @@ ENDPROC(protected_mode_jump)
 
 	.code32
 	.section ".text32","ax"
-GLOBAL(in_pm32)
+ENTRY(in_pm32)
 	# Set up data segments for flat 32-bit mode
 	movl	%ecx, %ds
 	movl	%ecx, %es
diff --git a/arch/x86/entry/entry_64_compat.S b/arch/x86/entry/entry_64_compat.S
index 14dc2f259e2f..ba6af2fba6a7 100644
--- a/arch/x86/entry/entry_64_compat.S
+++ b/arch/x86/entry/entry_64_compat.S
@@ -342,8 +342,7 @@ ENTRY(entry_INT80_compat)
 	jmp	restore_regs_and_iret
 ENDPROC(entry_INT80_compat)
 
-	ALIGN
-GLOBAL(stub32_clone)
+ENTRY(stub32_clone)
 	/*
 	 * The 32-bit clone ABI is: clone(..., int tls_val, int *child_tidptr).
 	 * The 64-bit clone ABI is: clone(..., int *child_tidptr, int tls_val).
diff --git a/arch/x86/kernel/ftrace_64.S b/arch/x86/kernel/ftrace_64.S
index a915729c0246..76c774a5e792 100644
--- a/arch/x86/kernel/ftrace_64.S
+++ b/arch/x86/kernel/ftrace_64.S
@@ -314,7 +314,7 @@ ENTRY(ftrace_graph_caller)
 	retq
 ENDPROC(ftrace_graph_caller)
 
-GLOBAL(return_to_handler)
+ENTRY(return_to_handler)
 	subq  $24, %rsp
 
 	/* Save the return values */
diff --git a/arch/x86/kernel/head_64.S b/arch/x86/kernel/head_64.S
index ac9d327d2e42..e1da48448cc0 100644
--- a/arch/x86/kernel/head_64.S
+++ b/arch/x86/kernel/head_64.S
@@ -46,8 +46,7 @@ L3_START_KERNEL = pud_index(__START_KERNEL_map)
 	.text
 	__HEAD
 	.code64
-	.globl startup_64
-startup_64:
+ENTRY(startup_64)
 	/*
 	 * At this point the CPU runs in 64bit mode CS.L = 1 CS.D = 0,
 	 * and someone has loaded an identity mapped page table
@@ -168,6 +167,8 @@ startup_64:
 .Lskip_fixup:
 	movq	$(early_level4_pgt - __START_KERNEL_map), %rax
 	jmp 1f
+ENDPROC(startup_64)
+
 ENTRY(secondary_startup_64)
 	/*
 	 * At this point the CPU runs in 64bit mode CS.L = 1 CS.D = 0,
-- 
2.12.2

  parent reply	other threads:[~2017-04-21 14:22 UTC|newest]

Thread overview: 53+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-04-21 14:12 [PATCH v3 01/29] x86: boot/copy, remove unused functions Jiri Slaby
2017-04-21 14:12 ` [PATCH v3 02/29] x86_32: boot, extract efi_pe_entry from startup_32 Jiri Slaby
2017-04-21 14:12 ` [PATCH v3 03/29] x86_64: boot, extract efi_pe_entry from startup_64 Jiri Slaby
2017-04-21 14:12 ` [PATCH v3 04/29] x86: assembly, use ENDPROC for functions Jiri Slaby
2017-04-26  1:42   ` Josh Poimboeuf
2017-05-12  7:53     ` Jiri Slaby
2017-05-12 22:15       ` Josh Poimboeuf
2017-05-17 13:23         ` Jiri Slaby
2017-05-19  9:17           ` Jiri Slaby
2017-05-19 19:50             ` Josh Poimboeuf
2017-04-21 14:12 ` [PATCH v3 05/29] x86: assembly, add ENDPROC to functions Jiri Slaby
2017-04-21 14:12 ` Jiri Slaby [this message]
2017-04-21 14:12 ` [PATCH v3 07/29] x86: bpf_jit, use ENTRY+ENDPROC Jiri Slaby
2017-04-21 19:32   ` Alexei Starovoitov
2017-04-24  6:45     ` Jiri Slaby
2017-04-24 14:41       ` David Miller
2017-04-24 14:52         ` Jiri Slaby
2017-04-24 15:08           ` David Miller
2017-04-24 15:41             ` Jiri Slaby
2017-04-24 15:51               ` David Miller
2017-04-24 15:53                 ` Jiri Slaby
2017-04-24 15:55               ` Ingo Molnar
2017-04-24 16:02                 ` Jiri Slaby
2017-04-24 16:40                   ` Ingo Molnar
2017-04-24 16:47                   ` Alexei Starovoitov
2017-04-24 17:51                     ` Jiri Slaby
2017-04-24 18:24                       ` David Miller
2017-04-25 14:41                         ` Jiri Slaby
2017-04-21 14:12 ` [PATCH v3 08/29] linkage: new macros for assembler symbols Jiri Slaby
2017-04-21 14:12 ` [PATCH v3 09/29] x86: assembly, use DATA_SIMPLE for data Jiri Slaby
2017-04-27 11:53   ` Pavel Machek
2017-04-27 12:30     ` Jiri Slaby
2017-04-27 12:43       ` Pavel Machek
2017-04-21 14:12 ` [PATCH v3 10/29] x86: assembly, annotate relocate_kernel Jiri Slaby
2017-04-21 14:12 ` [PATCH v3 11/29] x86: entry, annotate THUNKs Jiri Slaby
2017-04-21 14:12 ` [PATCH v3 12/29] x86: assembly, annotate local functions Jiri Slaby
2017-04-21 14:12 ` [PATCH v3 13/29] x86: crypto, " Jiri Slaby
2017-04-21 14:12 ` [PATCH v3 14/29] x86: boot, " Jiri Slaby
2017-04-21 14:12 ` [PATCH v3 15/29] x86: assembly, annotate aliases Jiri Slaby
2017-04-21 14:12 ` [PATCH v3 16/29] x86: entry, annotate interrupt symbols properly Jiri Slaby
2017-04-21 14:12 ` [PATCH v3 17/29] x86: head, annotate data appropriatelly Jiri Slaby
2017-04-21 14:12 ` [PATCH v3 18/29] x86: boot, " Jiri Slaby
2017-04-21 14:12 ` [PATCH v3 19/29] x86: um, " Jiri Slaby
2017-04-21 14:12 ` [PATCH v3 20/29] x86: xen-pvh, " Jiri Slaby
2017-04-21 14:12 ` [PATCH v3 21/29] x86: purgatory, start using annotations Jiri Slaby
2017-04-21 14:12 ` [PATCH v3 22/29] x86: assembly, use SYM_FUNC_INNER_LABEL instead of GLOBAL Jiri Slaby
2017-04-21 14:12 ` [PATCH v3 23/29] x86: realmode, use SYM_DATA_* " Jiri Slaby
2017-04-21 14:13 ` [PATCH v3 24/29] x86: assembly, remove GLOBAL macro Jiri Slaby
2017-04-21 14:13 ` [PATCH v3 25/29] x86: assembly, make some functions local Jiri Slaby
2017-04-21 14:13 ` [PATCH v3 26/29] x86_64: assembly, change all ENTRY to SYM_FUNC_START Jiri Slaby
2017-04-21 14:13 ` [PATCH v3 27/29] x86_32: " Jiri Slaby
2017-04-21 14:13 ` [PATCH v3 28/29] x86_32: lguest, use SYM_ENTRY Jiri Slaby
2017-04-21 14:13 ` [PATCH v3 29/29] x86: assembly, replace WEAK uses Jiri Slaby

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