[PATCHSET x86/master] add stack protector support for x86_32

[PATCHSET x86/master] add stack protector support for x86_32

[Tejun Heo]

Hello,

This patchset adds stack protector support for x86_32.  The basics are
the same with x86_64 but there are some noticeable differences.

* x86_32 uses %fs for percpu base.  %gs is unused by the kernel and
  managed lazily.  %gs is used for userland TLS and loading %gs with
  different value on kernel entry is known to cost quite a bit on some
  chips.

  Lazy %gs handling is made optional and disabled if stack protector
  is enabled.  To do this, entry for %gs is added to pt_regs.  This
  adds one "pushl $0" to SAVE_ALL in entry_32.S when lazy %gs is on.
  However, no overhead is added to common exit path and error_code
  entry path shed a few instructions.  I don't think there will be
  noticeable overhead but then again it does add an instruction to a
  very hot path.  Would this be okay?

* x86_32 doesn't support direct access to shadow part of %gs and
  there's no swapgs, so GDT entry should be built for stack canary.

  GDT entry 28 is used for this.  The boot cpu one is setup from
  head_32.S.  Others while setting up percpu areas.

* math_emu register access was completely broken.  Fixed.

* x86_32 exception handlers take register frame verbatim as struct
  pt_regs.  With -fstack-protector, gcc copies pt_regs into the
  callee's stack frame to put it after the stack canary.  Of course it
  doesn't copy back (as the callee owns the argument) and any change
  made to pt_regs is lost on return.  This is currently worked around
  by adding -fno-stack-protector to any file containing such
  functions.  We really need to teach gcc about the calling
  convention.

This patchset contains the following eleven patches.

  0001-x86-include-correct-gs-in-a.out-core-dump.patch
  0002-x86-math_emu-info-cleanup.patch
  0003-x86-fix-math_emu-register-frame-access.patch
  0004-elf-add-ELF_CORE_COPY_KERNEL_REGS.patch
  0005-x86-stackprotector.h-misc-update.patch
  0006-stackprotector-update-make-rules.patch
  0007-x86-no-stack-protector-for-vdso.patch
  0008-x86-use-asm-.macro-instead-of-cpp-define-in-entry_.patch
  0009-x86-add-gs-accessors-for-x86_32.patch
  0010-x86-make-lazy-gs-optional-on-x86_32.patch
  0011-x86-implement-x86_32-stack-protector.patch

0001 is a misc fix.  0002-0003 fixes math_emu register frame access.
0004-0008 preps for stack protector changes.  0009-0010 makes lazy %gs
handling optional.  0011 implements stack protector support for
x86_32.

Jeremy, Rusty, can you guys please take a look at patch #0010 and
#0011 and see whether xen and lguest are okay?  I don't think anything
is broken for those although stackp might not work but haven't tested
them.  I'll try to learn xen and lguest and test them in the future.

This patchset is against the current x86/master[1].  If acked, please
pull from the following git branch

  git://git.kernel.org/pub/scm/linux/kernel/git/tj/misc.git tj-stackp32

to receive the following changes.

 Makefile                                  |    3 
 arch/x86/Kconfig                          |    5 
 arch/x86/Makefile                         |   17 -
 arch/x86/include/asm/a.out-core.h         |    4 
 arch/x86/include/asm/elf.h                |   15 -
 arch/x86/include/asm/math_emu.h           |   29 --
 arch/x86/include/asm/mmu_context.h        |    2 
 arch/x86/include/asm/processor.h          |    6 
 arch/x86/include/asm/ptrace.h             |    4 
 arch/x86/include/asm/segment.h            |    9 
 arch/x86/include/asm/stackprotector.h     |   96 ++++++
 arch/x86/include/asm/system.h             |   40 ++
 arch/x86/include/asm/traps.h              |    4 
 arch/x86/kernel/Makefile                  |   18 +
 arch/x86/kernel/asm-offsets_32.c          |    1 
 arch/x86/kernel/cpu/common.c              |   17 -
 arch/x86/kernel/entry_32.S                |  423 ++++++++++++++++++------------
 arch/x86/kernel/head_32.S                 |   20 +
 arch/x86/kernel/process_32.c              |   11 
 arch/x86/kernel/ptrace.c                  |   19 -
 arch/x86/kernel/setup_percpu.c            |    2 
 arch/x86/kernel/signal.c                  |   41 +-
 arch/x86/kernel/traps.c                   |   15 -
 arch/x86/kernel/vm86_32.c                 |    4 
 arch/x86/lguest/boot.c                    |    2 
 arch/x86/math-emu/fpu_entry.c             |    6 
 arch/x86/math-emu/fpu_proto.h             |    4 
 arch/x86/math-emu/fpu_system.h            |   16 -
 arch/x86/math-emu/get_address.c           |   75 ++---
 arch/x86/vdso/Makefile                    |    2 
 arch/x86/xen/enlighten.c                  |   17 -
 include/linux/elfcore.h                   |    9 
 kernel/kexec.c                            |    2 
 kernel/panic.c                            |    4 
 scripts/gcc-x86_32-has-stack-protector.sh |    8 
 scripts/gcc-x86_64-has-stack-protector.sh |    4 
 36 files changed, 619 insertions(+), 335 deletions(-)

Thanks.

--
tejun

[1] 2076fe22811d836936b80ad1c55997f70bb0ae8d

[PATCH 01/11] x86: include correct %gs in a.out core dump

[Tejun Heo]

Impact: dump the correct %gs into a.out core dump

aout_dump_thread() read %gs but didn't include it in core dump.  Fix
it.

Signed-off-by: Tejun Heo <tj@kernel.org>
---
 arch/x86/include/asm/a.out-core.h |    4 +---
 1 files changed, 1 insertions(+), 3 deletions(-)

diff --git a/arch/x86/include/asm/a.out-core.h b/arch/x86/include/asm/a.out-core.h
index 3782220..3c601f8 100644
--- a/arch/x86/include/asm/a.out-core.h
+++ b/arch/x86/include/asm/a.out-core.h
@@ -23,8 +23,6 @@
  */
 static inline void aout_dump_thread(struct pt_regs *regs, struct user *dump)
 {
-	u16 gs;
-
 /* changed the size calculations - should hopefully work better. lbt */
 	dump->magic = CMAGIC;
 	dump->start_code = 0;
@@ -57,7 +55,7 @@ static inline void aout_dump_thread(struct pt_regs *regs, struct user *dump)
 	dump->regs.ds = (u16)regs->ds;
 	dump->regs.es = (u16)regs->es;
 	dump->regs.fs = (u16)regs->fs;
-	savesegment(gs, gs);
+	savesegment(gs, dump->regs.gs);
 	dump->regs.orig_ax = regs->orig_ax;
 	dump->regs.ip = regs->ip;
 	dump->regs.cs = (u16)regs->cs;
-- 
1.6.0.2

[PATCH 02/11] x86: math_emu info cleanup

[Tejun Heo]

Impact: cleanup

* Come on, struct info?  s/struct info/struct math_emu_info/

* Use struct pt_regs and kernel_vm86_regs instead of defining its own
  register frame structure.

Signed-off-by: Tejun Heo <tj@kernel.org>
---
 arch/x86/include/asm/math_emu.h  |   29 +++++------------
 arch/x86/include/asm/processor.h |    2 +-
 arch/x86/math-emu/fpu_entry.c    |    2 +-
 arch/x86/math-emu/fpu_proto.h    |    2 +-
 arch/x86/math-emu/fpu_system.h   |   14 ++++----
 arch/x86/math-emu/get_address.c  |   63 ++++++++++++++++++--------------------
 6 files changed, 48 insertions(+), 64 deletions(-)

diff --git a/arch/x86/include/asm/math_emu.h b/arch/x86/include/asm/math_emu.h
index 5a65b10..302492c 100644
--- a/arch/x86/include/asm/math_emu.h
+++ b/arch/x86/include/asm/math_emu.h
@@ -1,31 +1,18 @@
 #ifndef _ASM_X86_MATH_EMU_H
 #define _ASM_X86_MATH_EMU_H
 
+#include <asm/ptrace.h>
+#include <asm/vm86.h>
+
 /* This structure matches the layout of the data saved to the stack
    following a device-not-present interrupt, part of it saved
    automatically by the 80386/80486.
    */
-struct info {
+struct math_emu_info {
 	long ___orig_eip;
-	long ___ebx;
-	long ___ecx;
-	long ___edx;
-	long ___esi;
-	long ___edi;
-	long ___ebp;
-	long ___eax;
-	long ___ds;
-	long ___es;
-	long ___fs;
-	long ___orig_eax;
-	long ___eip;
-	long ___cs;
-	long ___eflags;
-	long ___esp;
-	long ___ss;
-	long ___vm86_es; /* This and the following only in vm86 mode */
-	long ___vm86_ds;
-	long ___vm86_fs;
-	long ___vm86_gs;
+	union {
+		struct pt_regs regs;
+		struct kernel_vm86_regs vm86;
+	};
 };
 #endif /* _ASM_X86_MATH_EMU_H */
diff --git a/arch/x86/include/asm/processor.h b/arch/x86/include/asm/processor.h
index 7fd5ae9..80b8be2 100644
--- a/arch/x86/include/asm/processor.h
+++ b/arch/x86/include/asm/processor.h
@@ -353,7 +353,7 @@ struct i387_soft_struct {
 	u8			no_update;
 	u8			rm;
 	u8			alimit;
-	struct info		*info;
+	struct math_emu_info	*info;
 	u32			entry_eip;
 };
 
diff --git a/arch/x86/math-emu/fpu_entry.c b/arch/x86/math-emu/fpu_entry.c
index c7b06fe..c268abe 100644
--- a/arch/x86/math-emu/fpu_entry.c
+++ b/arch/x86/math-emu/fpu_entry.c
@@ -659,7 +659,7 @@ static int valid_prefix(u_char *Byte, u_char __user **fpu_eip,
 	}
 }
 
-void math_abort(struct info *info, unsigned int signal)
+void math_abort(struct math_emu_info *info, unsigned int signal)
 {
 	FPU_EIP = FPU_ORIG_EIP;
 	current->thread.trap_no = 16;
diff --git a/arch/x86/math-emu/fpu_proto.h b/arch/x86/math-emu/fpu_proto.h
index aa49b6a..51bfbb6 100644
--- a/arch/x86/math-emu/fpu_proto.h
+++ b/arch/x86/math-emu/fpu_proto.h
@@ -52,7 +52,7 @@ extern void fst_i_(void);
 extern void fstp_i(void);
 /* fpu_entry.c */
 asmlinkage extern void math_emulate(long arg);
-extern void math_abort(struct info *info, unsigned int signal);
+extern void math_abort(struct math_emu_info *info, unsigned int signal);
 /* fpu_etc.c */
 extern void FPU_etc(void);
 /* fpu_tags.c */
diff --git a/arch/x86/math-emu/fpu_system.h b/arch/x86/math-emu/fpu_system.h
index 13488fa..6729c6a 100644
--- a/arch/x86/math-emu/fpu_system.h
+++ b/arch/x86/math-emu/fpu_system.h
@@ -18,7 +18,7 @@
 
 /* This sets the pointer FPU_info to point to the argument part
    of the stack frame of math_emulate() */
-#define SETUP_DATA_AREA(arg)	FPU_info = (struct info *) &arg
+#define SETUP_DATA_AREA(arg)	FPU_info = (struct math_emu_info *) &arg
 
 /* s is always from a cpu register, and the cpu does bounds checking
  * during register load --> no further bounds checks needed */
@@ -38,12 +38,12 @@
 #define I387			(current->thread.xstate)
 #define FPU_info		(I387->soft.info)
 
-#define FPU_CS			(*(unsigned short *) &(FPU_info->___cs))
-#define FPU_SS			(*(unsigned short *) &(FPU_info->___ss))
-#define FPU_DS			(*(unsigned short *) &(FPU_info->___ds))
-#define FPU_EAX			(FPU_info->___eax)
-#define FPU_EFLAGS		(FPU_info->___eflags)
-#define FPU_EIP			(FPU_info->___eip)
+#define FPU_CS			(*(unsigned short *) &(FPU_info->regs.cs))
+#define FPU_SS			(*(unsigned short *) &(FPU_info->regs.ss))
+#define FPU_DS			(*(unsigned short *) &(FPU_info->regs.ds))
+#define FPU_EAX			(FPU_info->regs.ax)
+#define FPU_EFLAGS		(FPU_info->regs.flags)
+#define FPU_EIP			(FPU_info->regs.ip)
 #define FPU_ORIG_EIP		(FPU_info->___orig_eip)
 
 #define FPU_lookahead           (I387->soft.lookahead)
diff --git a/arch/x86/math-emu/get_address.c b/arch/x86/math-emu/get_address.c
index d701e2b..62daa7f 100644
--- a/arch/x86/math-emu/get_address.c
+++ b/arch/x86/math-emu/get_address.c
@@ -29,42 +29,39 @@
 #define FPU_WRITE_BIT 0x10
 
 static int reg_offset[] = {
-	offsetof(struct info, ___eax),
-	offsetof(struct info, ___ecx),
-	offsetof(struct info, ___edx),
-	offsetof(struct info, ___ebx),
-	offsetof(struct info, ___esp),
-	offsetof(struct info, ___ebp),
-	offsetof(struct info, ___esi),
-	offsetof(struct info, ___edi)
+	offsetof(struct math_emu_info, regs.ax),
+	offsetof(struct math_emu_info, regs.cx),
+	offsetof(struct math_emu_info, regs.dx),
+	offsetof(struct math_emu_info, regs.bx),
+	offsetof(struct math_emu_info, regs.sp),
+	offsetof(struct math_emu_info, regs.bp),
+	offsetof(struct math_emu_info, regs.si),
+	offsetof(struct math_emu_info, regs.di)
 };
 
 #define REG_(x) (*(long *)(reg_offset[(x)]+(u_char *) FPU_info))
 
 static int reg_offset_vm86[] = {
-	offsetof(struct info, ___cs),
-	offsetof(struct info, ___vm86_ds),
-	offsetof(struct info, ___vm86_es),
-	offsetof(struct info, ___vm86_fs),
-	offsetof(struct info, ___vm86_gs),
-	offsetof(struct info, ___ss),
-	offsetof(struct info, ___vm86_ds)
+	offsetof(struct math_emu_info, regs.cs),
+	offsetof(struct math_emu_info, vm86.ds),
+	offsetof(struct math_emu_info, vm86.es),
+	offsetof(struct math_emu_info, vm86.fs),
+	offsetof(struct math_emu_info, vm86.gs),
+	offsetof(struct math_emu_info, regs.ss),
+	offsetof(struct math_emu_info, vm86.ds)
 };
 
 #define VM86_REG_(x) (*(unsigned short *) \
 		      (reg_offset_vm86[((unsigned)x)]+(u_char *) FPU_info))
 
-/* This dummy, gs is not saved on the stack. */
-#define ___GS ___ds
-
 static int reg_offset_pm[] = {
-	offsetof(struct info, ___cs),
-	offsetof(struct info, ___ds),
-	offsetof(struct info, ___es),
-	offsetof(struct info, ___fs),
-	offsetof(struct info, ___GS),
-	offsetof(struct info, ___ss),
-	offsetof(struct info, ___ds)
+	offsetof(struct math_emu_info, regs.cs),
+	offsetof(struct math_emu_info, regs.ds),
+	offsetof(struct math_emu_info, regs.es),
+	offsetof(struct math_emu_info, regs.fs),
+	offsetof(struct math_emu_info, regs.ds), /* dummy, not saved on stack */
+	offsetof(struct math_emu_info, regs.ss),
+	offsetof(struct math_emu_info, regs.ds)
 };
 
 #define PM_REG_(x) (*(unsigned short *) \
@@ -349,34 +346,34 @@ void __user *FPU_get_address_16(u_char FPU_modrm, unsigned long *fpu_eip,
 	}
 	switch (rm) {
 	case 0:
-		address += FPU_info->___ebx + FPU_info->___esi;
+		address += FPU_info->regs.bx + FPU_info->regs.si;
 		break;
 	case 1:
-		address += FPU_info->___ebx + FPU_info->___edi;
+		address += FPU_info->regs.bx + FPU_info->regs.di;
 		break;
 	case 2:
-		address += FPU_info->___ebp + FPU_info->___esi;
+		address += FPU_info->regs.bp + FPU_info->regs.si;
 		if (addr_modes.override.segment == PREFIX_DEFAULT)
 			addr_modes.override.segment = PREFIX_SS_;
 		break;
 	case 3:
-		address += FPU_info->___ebp + FPU_info->___edi;
+		address += FPU_info->regs.bp + FPU_info->regs.di;
 		if (addr_modes.override.segment == PREFIX_DEFAULT)
 			addr_modes.override.segment = PREFIX_SS_;
 		break;
 	case 4:
-		address += FPU_info->___esi;
+		address += FPU_info->regs.si;
 		break;
 	case 5:
-		address += FPU_info->___edi;
+		address += FPU_info->regs.di;
 		break;
 	case 6:
-		address += FPU_info->___ebp;
+		address += FPU_info->regs.bp;
 		if (addr_modes.override.segment == PREFIX_DEFAULT)
 			addr_modes.override.segment = PREFIX_SS_;
 		break;
 	case 7:
-		address += FPU_info->___ebx;
+		address += FPU_info->regs.bx;
 		break;
 	}
 
-- 
1.6.0.2

[PATCH 03/11] x86: fix math_emu register frame access

[Tejun Heo]

do_device_not_available() is the handler for #NM and it declares that
it takes a unsigned long and calls math_emu(), which takes a long
argument and surprisingly expects the stack frame starting at the zero
argument would match struct math_emu_info, which isn't true regardless
of configuration in the current code.

This patch makes do_device_not_available() take struct pt_regs like
other exception handlers and initialize struct math_emu_info with
pointer to it and pass pointer to the math_emu_info to math_emulate()
like normal C functions do.  This way, unless gcc makes a copy of
struct pt_regs in do_device_not_available(), the register frame is
correctly accessed regardless of kernel configuration or compiler
used.

This doesn't fix all math_emu problems but it at least gets it
somewhat working.

Signed-off-by: Tejun Heo <tj@kernel.org>
---
 arch/x86/include/asm/math_emu.h |    4 +-
 arch/x86/include/asm/traps.h    |    4 +-
 arch/x86/kernel/traps.c         |   15 +++++---
 arch/x86/math-emu/fpu_entry.c   |    4 +-
 arch/x86/math-emu/fpu_proto.h   |    2 +-
 arch/x86/math-emu/fpu_system.h  |   16 +++------
 arch/x86/math-emu/get_address.c |   66 +++++++++++++++++++-------------------
 7 files changed, 55 insertions(+), 56 deletions(-)

diff --git a/arch/x86/include/asm/math_emu.h b/arch/x86/include/asm/math_emu.h
index 302492c..031f626 100644
--- a/arch/x86/include/asm/math_emu.h
+++ b/arch/x86/include/asm/math_emu.h
@@ -11,8 +11,8 @@
 struct math_emu_info {
 	long ___orig_eip;
 	union {
-		struct pt_regs regs;
-		struct kernel_vm86_regs vm86;
+		struct pt_regs *regs;
+		struct kernel_vm86_regs *vm86;
 	};
 };
 #endif /* _ASM_X86_MATH_EMU_H */
diff --git a/arch/x86/include/asm/traps.h b/arch/x86/include/asm/traps.h
index 2ee0a3b..36ad79f 100644
--- a/arch/x86/include/asm/traps.h
+++ b/arch/x86/include/asm/traps.h
@@ -41,7 +41,7 @@ dotraplinkage void do_int3(struct pt_regs *, long);
 dotraplinkage void do_overflow(struct pt_regs *, long);
 dotraplinkage void do_bounds(struct pt_regs *, long);
 dotraplinkage void do_invalid_op(struct pt_regs *, long);
-dotraplinkage void do_device_not_available(struct pt_regs *, long);
+dotraplinkage void do_device_not_available(struct pt_regs);
 dotraplinkage void do_coprocessor_segment_overrun(struct pt_regs *, long);
 dotraplinkage void do_invalid_TSS(struct pt_regs *, long);
 dotraplinkage void do_segment_not_present(struct pt_regs *, long);
@@ -77,7 +77,7 @@ extern int panic_on_unrecovered_nmi;
 extern int kstack_depth_to_print;
 
 void math_error(void __user *);
-asmlinkage void math_emulate(long);
+asmlinkage void math_emulate(struct math_emu_info *);
 #ifdef CONFIG_X86_32
 unsigned long patch_espfix_desc(unsigned long, unsigned long);
 #else
diff --git a/arch/x86/kernel/traps.c b/arch/x86/kernel/traps.c
index afb46c0..84bdf8f 100644
--- a/arch/x86/kernel/traps.c
+++ b/arch/x86/kernel/traps.c
@@ -900,7 +900,7 @@ asmlinkage void math_state_restore(void)
 EXPORT_SYMBOL_GPL(math_state_restore);
 
 #ifndef CONFIG_MATH_EMULATION
-asmlinkage void math_emulate(long arg)
+void math_emulate(struct math_emu_info *info)
 {
 	printk(KERN_EMERG
 		"math-emulation not enabled and no coprocessor found.\n");
@@ -910,16 +910,19 @@ asmlinkage void math_emulate(long arg)
 }
 #endif /* CONFIG_MATH_EMULATION */
 
-dotraplinkage void __kprobes
-do_device_not_available(struct pt_regs *regs, long error)
+dotraplinkage void __kprobes do_device_not_available(struct pt_regs regs)
 {
 #ifdef CONFIG_X86_32
 	if (read_cr0() & X86_CR0_EM) {
-		conditional_sti(regs);
-		math_emulate(0);
+		struct math_emu_info info = { };
+
+		conditional_sti(&regs);
+
+		info.regs = &regs;
+		math_emulate(&info);
 	} else {
 		math_state_restore(); /* interrupts still off */
-		conditional_sti(regs);
+		conditional_sti(&regs);
 	}
 #else
 	math_state_restore();
diff --git a/arch/x86/math-emu/fpu_entry.c b/arch/x86/math-emu/fpu_entry.c
index c268abe..5d87f58 100644
--- a/arch/x86/math-emu/fpu_entry.c
+++ b/arch/x86/math-emu/fpu_entry.c
@@ -131,7 +131,7 @@ u_char emulating = 0;
 static int valid_prefix(u_char *Byte, u_char __user ** fpu_eip,
 			overrides * override);
 
-asmlinkage void math_emulate(long arg)
+void math_emulate(struct math_emu_info *info)
 {
 	u_char FPU_modrm, byte1;
 	unsigned short code;
@@ -161,7 +161,7 @@ asmlinkage void math_emulate(long arg)
 	RE_ENTRANT_CHECK_ON;
 #endif /* RE_ENTRANT_CHECKING */
 
-	SETUP_DATA_AREA(arg);
+	FPU_info = info;
 
 	FPU_ORIG_EIP = FPU_EIP;
 
diff --git a/arch/x86/math-emu/fpu_proto.h b/arch/x86/math-emu/fpu_proto.h
index 51bfbb6..9779df4 100644
--- a/arch/x86/math-emu/fpu_proto.h
+++ b/arch/x86/math-emu/fpu_proto.h
@@ -51,7 +51,7 @@ extern void ffreep(void);
 extern void fst_i_(void);
 extern void fstp_i(void);
 /* fpu_entry.c */
-asmlinkage extern void math_emulate(long arg);
+extern void math_emulate(struct math_emu_info *info);
 extern void math_abort(struct math_emu_info *info, unsigned int signal);
 /* fpu_etc.c */
 extern void FPU_etc(void);
diff --git a/arch/x86/math-emu/fpu_system.h b/arch/x86/math-emu/fpu_system.h
index 6729c6a..50fa0ec 100644
--- a/arch/x86/math-emu/fpu_system.h
+++ b/arch/x86/math-emu/fpu_system.h
@@ -16,10 +16,6 @@
 #include <linux/kernel.h>
 #include <linux/mm.h>
 
-/* This sets the pointer FPU_info to point to the argument part
-   of the stack frame of math_emulate() */
-#define SETUP_DATA_AREA(arg)	FPU_info = (struct math_emu_info *) &arg
-
 /* s is always from a cpu register, and the cpu does bounds checking
  * during register load --> no further bounds checks needed */
 #define LDT_DESCRIPTOR(s)	(((struct desc_struct *)current->mm->context.ldt)[(s) >> 3])
@@ -38,12 +34,12 @@
 #define I387			(current->thread.xstate)
 #define FPU_info		(I387->soft.info)
 
-#define FPU_CS			(*(unsigned short *) &(FPU_info->regs.cs))
-#define FPU_SS			(*(unsigned short *) &(FPU_info->regs.ss))
-#define FPU_DS			(*(unsigned short *) &(FPU_info->regs.ds))
-#define FPU_EAX			(FPU_info->regs.ax)
-#define FPU_EFLAGS		(FPU_info->regs.flags)
-#define FPU_EIP			(FPU_info->regs.ip)
+#define FPU_CS			(*(unsigned short *) &(FPU_info->regs->cs))
+#define FPU_SS			(*(unsigned short *) &(FPU_info->regs->ss))
+#define FPU_DS			(*(unsigned short *) &(FPU_info->regs->ds))
+#define FPU_EAX			(FPU_info->regs->ax)
+#define FPU_EFLAGS		(FPU_info->regs->flags)
+#define FPU_EIP			(FPU_info->regs->ip)
 #define FPU_ORIG_EIP		(FPU_info->___orig_eip)
 
 #define FPU_lookahead           (I387->soft.lookahead)
diff --git a/arch/x86/math-emu/get_address.c b/arch/x86/math-emu/get_address.c
index 62daa7f..420b3b6 100644
--- a/arch/x86/math-emu/get_address.c
+++ b/arch/x86/math-emu/get_address.c
@@ -29,43 +29,43 @@
 #define FPU_WRITE_BIT 0x10
 
 static int reg_offset[] = {
-	offsetof(struct math_emu_info, regs.ax),
-	offsetof(struct math_emu_info, regs.cx),
-	offsetof(struct math_emu_info, regs.dx),
-	offsetof(struct math_emu_info, regs.bx),
-	offsetof(struct math_emu_info, regs.sp),
-	offsetof(struct math_emu_info, regs.bp),
-	offsetof(struct math_emu_info, regs.si),
-	offsetof(struct math_emu_info, regs.di)
+	offsetof(struct pt_regs, ax),
+	offsetof(struct pt_regs, cx),
+	offsetof(struct pt_regs, dx),
+	offsetof(struct pt_regs, bx),
+	offsetof(struct pt_regs, sp),
+	offsetof(struct pt_regs, bp),
+	offsetof(struct pt_regs, si),
+	offsetof(struct pt_regs, di)
 };
 
-#define REG_(x) (*(long *)(reg_offset[(x)]+(u_char *) FPU_info))
+#define REG_(x) (*(long *)(reg_offset[(x)] + (u_char *)FPU_info->regs))
 
 static int reg_offset_vm86[] = {
-	offsetof(struct math_emu_info, regs.cs),
-	offsetof(struct math_emu_info, vm86.ds),
-	offsetof(struct math_emu_info, vm86.es),
-	offsetof(struct math_emu_info, vm86.fs),
-	offsetof(struct math_emu_info, vm86.gs),
-	offsetof(struct math_emu_info, regs.ss),
-	offsetof(struct math_emu_info, vm86.ds)
+	offsetof(struct pt_regs, cs),
+	offsetof(struct kernel_vm86_regs, ds),
+	offsetof(struct kernel_vm86_regs, es),
+	offsetof(struct kernel_vm86_regs, fs),
+	offsetof(struct kernel_vm86_regs, gs),
+	offsetof(struct pt_regs, ss),
+	offsetof(struct kernel_vm86_regs, ds)
 };
 
 #define VM86_REG_(x) (*(unsigned short *) \
-		      (reg_offset_vm86[((unsigned)x)]+(u_char *) FPU_info))
+		(reg_offset_vm86[((unsigned)x)] + (u_char *)FPU_info->regs))
 
 static int reg_offset_pm[] = {
-	offsetof(struct math_emu_info, regs.cs),
-	offsetof(struct math_emu_info, regs.ds),
-	offsetof(struct math_emu_info, regs.es),
-	offsetof(struct math_emu_info, regs.fs),
-	offsetof(struct math_emu_info, regs.ds), /* dummy, not saved on stack */
-	offsetof(struct math_emu_info, regs.ss),
-	offsetof(struct math_emu_info, regs.ds)
+	offsetof(struct pt_regs, cs),
+	offsetof(struct pt_regs, ds),
+	offsetof(struct pt_regs, es),
+	offsetof(struct pt_regs, fs),
+	offsetof(struct pt_regs, ds),	/* dummy, not saved on stack */
+	offsetof(struct pt_regs, ss),
+	offsetof(struct pt_regs, ds)
 };
 
 #define PM_REG_(x) (*(unsigned short *) \
-		      (reg_offset_pm[((unsigned)x)]+(u_char *) FPU_info))
+		(reg_offset_pm[((unsigned)x)] + (u_char *)FPU_info->regs))
 
 /* Decode the SIB byte. This function assumes mod != 0 */
 static int sib(int mod, unsigned long *fpu_eip)
@@ -346,34 +346,34 @@ void __user *FPU_get_address_16(u_char FPU_modrm, unsigned long *fpu_eip,
 	}
 	switch (rm) {
 	case 0:
-		address += FPU_info->regs.bx + FPU_info->regs.si;
+		address += FPU_info->regs->bx + FPU_info->regs->si;
 		break;
 	case 1:
-		address += FPU_info->regs.bx + FPU_info->regs.di;
+		address += FPU_info->regs->bx + FPU_info->regs->di;
 		break;
 	case 2:
-		address += FPU_info->regs.bp + FPU_info->regs.si;
+		address += FPU_info->regs->bp + FPU_info->regs->si;
 		if (addr_modes.override.segment == PREFIX_DEFAULT)
 			addr_modes.override.segment = PREFIX_SS_;
 		break;
 	case 3:
-		address += FPU_info->regs.bp + FPU_info->regs.di;
+		address += FPU_info->regs->bp + FPU_info->regs->di;
 		if (addr_modes.override.segment == PREFIX_DEFAULT)
 			addr_modes.override.segment = PREFIX_SS_;
 		break;
 	case 4:
-		address += FPU_info->regs.si;
+		address += FPU_info->regs->si;
 		break;
 	case 5:
-		address += FPU_info->regs.di;
+		address += FPU_info->regs->di;
 		break;
 	case 6:
-		address += FPU_info->regs.bp;
+		address += FPU_info->regs->bp;
 		if (addr_modes.override.segment == PREFIX_DEFAULT)
 			addr_modes.override.segment = PREFIX_SS_;
 		break;
 	case 7:
-		address += FPU_info->regs.bx;
+		address += FPU_info->regs->bx;
 		break;
 	}
 
-- 
1.6.0.2

[PATCH 04/11] elf: add ELF_CORE_COPY_KERNEL_REGS()

[Tejun Heo]

ELF core dump is used for both user land core dump and kernel crash
dump.  Depending on architecture, register might need to be accessed
differently for userland and kernel.  Allow architectures to define
ELF_CORE_COPY_KERNEL_REGS() and use different operation for kernel
register dump.

Signed-off-by: Tejun Heo <tj@kernel.org>
---
 include/linux/elfcore.h |    9 +++++++++
 kernel/kexec.c          |    2 +-
 2 files changed, 10 insertions(+), 1 deletions(-)

diff --git a/include/linux/elfcore.h b/include/linux/elfcore.h
index 5ca54d7..7605c5e 100644
--- a/include/linux/elfcore.h
+++ b/include/linux/elfcore.h
@@ -111,6 +111,15 @@ static inline void elf_core_copy_regs(elf_gregset_t *elfregs, struct pt_regs *re
 #endif
 }
 
+static inline void elf_core_copy_kernel_regs(elf_gregset_t *elfregs, struct pt_regs *regs)
+{
+#ifdef ELF_CORE_COPY_KERNEL_REGS
+	ELF_CORE_COPY_KERNEL_REGS((*elfregs), regs);
+#else
+	elf_core_copy_regs(elfregs, regs);
+#endif
+}
+
 static inline int elf_core_copy_task_regs(struct task_struct *t, elf_gregset_t* elfregs)
 {
 #ifdef ELF_CORE_COPY_TASK_REGS
diff --git a/kernel/kexec.c b/kernel/kexec.c
index 8a6d7b0..795e7b6 100644
--- a/kernel/kexec.c
+++ b/kernel/kexec.c
@@ -1130,7 +1130,7 @@ void crash_save_cpu(struct pt_regs *regs, int cpu)
 		return;
 	memset(&prstatus, 0, sizeof(prstatus));
 	prstatus.pr_pid = current->pid;
-	elf_core_copy_regs(&prstatus.pr_reg, regs);
+	elf_core_copy_kernel_regs(&prstatus.pr_reg, regs);
 	buf = append_elf_note(buf, KEXEC_CORE_NOTE_NAME, NT_PRSTATUS,
 		      	      &prstatus, sizeof(prstatus));
 	final_note(buf);
-- 
1.6.0.2

[PATCH 05/11] x86: stackprotector.h misc update

[Tejun Heo]

Impact: misc udpate

* wrap content with CONFIG_CC_STACK_PROTECTOR so that other arch files
  can include it directly

* add missing includes

This will help future changes.

Signed-off-by: Tejun Heo <tj@kernel.org>
---
 arch/x86/include/asm/stackprotector.h |    7 ++++++-
 1 files changed, 6 insertions(+), 1 deletions(-)

diff --git a/arch/x86/include/asm/stackprotector.h b/arch/x86/include/asm/stackprotector.h
index 36a700a..ee275e9 100644
--- a/arch/x86/include/asm/stackprotector.h
+++ b/arch/x86/include/asm/stackprotector.h
@@ -1,8 +1,12 @@
 #ifndef _ASM_STACKPROTECTOR_H
 #define _ASM_STACKPROTECTOR_H 1
 
+#ifdef CONFIG_CC_STACKPROTECTOR
+
 #include <asm/tsc.h>
 #include <asm/processor.h>
+#include <asm/percpu.h>
+#include <linux/random.h>
 
 /*
  * Initialize the stackprotector canary value.
@@ -35,4 +39,5 @@ static __always_inline void boot_init_stack_canary(void)
 	percpu_write(irq_stack_union.stack_canary, canary);
 }
 
-#endif
+#endif	/* CC_STACKPROTECTOR */
+#endif	/* _ASM_STACKPROTECTOR_H */
-- 
1.6.0.2

[PATCH 06/11] stackprotector: update make rules

[Tejun Heo]

Impact: no default -fno-stack-protector if stackp is enabled, cleanup

Stackprotector make rules had the following problems.

* cc support test and warning are scattered across makefile and
  kernel/panic.c.

* -fno-stack-protector was always added regardless of configuration.

Update such that cc support test and warning are contained in makefile
and -fno-stack-protector is added iff stackp is turned off.  While at
it, prepare for 32bit support.

Signed-off-by: Tejun Heo <tj@kernel.org>
---
 Makefile                                  |    3 ++-
 arch/x86/Makefile                         |   17 ++++++++++-------
 kernel/panic.c                            |    4 ----
 scripts/gcc-x86_64-has-stack-protector.sh |    4 +++-
 4 files changed, 15 insertions(+), 13 deletions(-)

diff --git a/Makefile b/Makefile
index d0634bc..1ab7cef 100644
--- a/Makefile
+++ b/Makefile
@@ -532,8 +532,9 @@ KBUILD_CFLAGS += $(call cc-option,-Wframe-larger-than=${CONFIG_FRAME_WARN})
 endif
 
 # Force gcc to behave correct even for buggy distributions
-# Arch Makefiles may override this setting
+ifndef CONFIG_CC_STACKPROTECTOR
 KBUILD_CFLAGS += $(call cc-option, -fno-stack-protector)
+endif
 
 ifdef CONFIG_FRAME_POINTER
 KBUILD_CFLAGS	+= -fno-omit-frame-pointer -fno-optimize-sibling-calls
diff --git a/arch/x86/Makefile b/arch/x86/Makefile
index eb7b986..8597305 100644
--- a/arch/x86/Makefile
+++ b/arch/x86/Makefile
@@ -70,14 +70,17 @@ else
         # this works around some issues with generating unwind tables in older gccs
         # newer gccs do it by default
         KBUILD_CFLAGS += -maccumulate-outgoing-args
+endif
 
-        stackp := $(CONFIG_SHELL) $(srctree)/scripts/gcc-x86_64-has-stack-protector.sh
-        stackp-$(CONFIG_CC_STACKPROTECTOR) := $(shell $(stackp) \
-                "$(CC)" "-fstack-protector -DGCC_HAS_SP" )
-        stackp-$(CONFIG_CC_STACKPROTECTOR_ALL) += $(shell $(stackp) \
-                "$(CC)" -fstack-protector-all )
-
-        KBUILD_CFLAGS += $(stackp-y)
+ifdef CONFIG_CC_STACKPROTECTOR
+	cc_has_sp := $(srctree)/scripts/gcc-x86_$(BITS)-has-stack-protector.sh
+        ifeq ($(shell $(CONFIG_SHELL) $(cc_has_sp) $(CC)),y)
+                stackp-y := -fstack-protector
+                stackp-$(CONFIG_CC_STACKPROTECTOR_ALL) += -fstack-protector-all
+                KBUILD_CFLAGS += $(stackp-y)
+        else
+                $(warning stack protector enabled but no compiler support)
+        endif
 endif
 
 # Don't unroll struct assignments with kmemcheck enabled
diff --git a/kernel/panic.c b/kernel/panic.c
index 33cab3d..32fe4ef 100644
--- a/kernel/panic.c
+++ b/kernel/panic.c
@@ -359,10 +359,6 @@ EXPORT_SYMBOL(warn_slowpath);
 
 #ifdef CONFIG_CC_STACKPROTECTOR
 
-#ifndef GCC_HAS_SP
-#warning You have selected the CONFIG_CC_STACKPROTECTOR option, but the gcc used does not support this.
-#endif
-
 /*
  * Called when gcc's -fstack-protector feature is used, and
  * gcc detects corruption of the on-stack canary value
diff --git a/scripts/gcc-x86_64-has-stack-protector.sh b/scripts/gcc-x86_64-has-stack-protector.sh
index 325c0a1..2d69fcd 100644
--- a/scripts/gcc-x86_64-has-stack-protector.sh
+++ b/scripts/gcc-x86_64-has-stack-protector.sh
@@ -2,5 +2,7 @@
 
 echo "int foo(void) { char X[200]; return 3; }" | $1 -S -xc -c -O0 -mcmodel=kernel -fstack-protector - -o - 2> /dev/null | grep -q "%gs"
 if [ "$?" -eq "0" ] ; then
-	echo $2
+	echo y
+else
+	echo n
 fi
-- 
1.6.0.2

[PATCH 07/11] x86: no stack protector for vdso

[Tejun Heo]

Impact: avoid crash on vsyscall

Signed-off-by: Tejun Heo <tj@kernel.org>
---
 arch/x86/vdso/Makefile |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/arch/x86/vdso/Makefile b/arch/x86/vdso/Makefile
index 4d6ef0a..16a9020 100644
--- a/arch/x86/vdso/Makefile
+++ b/arch/x86/vdso/Makefile
@@ -38,7 +38,7 @@ $(obj)/%.so: $(obj)/%.so.dbg FORCE
 	$(call if_changed,objcopy)
 
 CFL := $(PROFILING) -mcmodel=small -fPIC -O2 -fasynchronous-unwind-tables -m64 \
-       $(filter -g%,$(KBUILD_CFLAGS))
+       $(filter -g%,$(KBUILD_CFLAGS)) $(call cc-option, -fno-stack-protector)
 
 $(vobjs): KBUILD_CFLAGS += $(CFL)
 
-- 
1.6.0.2

[PATCH 08/11] x86: use asm .macro instead of cpp #define in entry_32.S

[Tejun Heo]

Impact: cleanup

Use .macro instead of cpp #define where approriate.  This cleans up
code and will ease future changes.

Signed-off-by: Tejun Heo <tj@kernel.org>
---
 arch/x86/kernel/entry_32.S |  293 +++++++++++++++++++++++---------------------
 1 files changed, 151 insertions(+), 142 deletions(-)

diff --git a/arch/x86/kernel/entry_32.S b/arch/x86/kernel/entry_32.S
index 65efd42..224739c 100644
--- a/arch/x86/kernel/entry_32.S
+++ b/arch/x86/kernel/entry_32.S
@@ -101,121 +101,127 @@
 #define resume_userspace_sig	resume_userspace
 #endif
 
-#define SAVE_ALL \
-	cld; \
-	pushl %fs; \
-	CFI_ADJUST_CFA_OFFSET 4;\
-	/*CFI_REL_OFFSET fs, 0;*/\
-	pushl %es; \
-	CFI_ADJUST_CFA_OFFSET 4;\
-	/*CFI_REL_OFFSET es, 0;*/\
-	pushl %ds; \
-	CFI_ADJUST_CFA_OFFSET 4;\
-	/*CFI_REL_OFFSET ds, 0;*/\
-	pushl %eax; \
-	CFI_ADJUST_CFA_OFFSET 4;\
-	CFI_REL_OFFSET eax, 0;\
-	pushl %ebp; \
-	CFI_ADJUST_CFA_OFFSET 4;\
-	CFI_REL_OFFSET ebp, 0;\
-	pushl %edi; \
-	CFI_ADJUST_CFA_OFFSET 4;\
-	CFI_REL_OFFSET edi, 0;\
-	pushl %esi; \
-	CFI_ADJUST_CFA_OFFSET 4;\
-	CFI_REL_OFFSET esi, 0;\
-	pushl %edx; \
-	CFI_ADJUST_CFA_OFFSET 4;\
-	CFI_REL_OFFSET edx, 0;\
-	pushl %ecx; \
-	CFI_ADJUST_CFA_OFFSET 4;\
-	CFI_REL_OFFSET ecx, 0;\
-	pushl %ebx; \
-	CFI_ADJUST_CFA_OFFSET 4;\
-	CFI_REL_OFFSET ebx, 0;\
-	movl $(__USER_DS), %edx; \
-	movl %edx, %ds; \
-	movl %edx, %es; \
-	movl $(__KERNEL_PERCPU), %edx; \
+.macro SAVE_ALL
+	cld
+	pushl %fs
+	CFI_ADJUST_CFA_OFFSET 4
+	/*CFI_REL_OFFSET fs, 0;*/
+	pushl %es
+	CFI_ADJUST_CFA_OFFSET 4
+	/*CFI_REL_OFFSET es, 0;*/
+	pushl %ds
+	CFI_ADJUST_CFA_OFFSET 4
+	/*CFI_REL_OFFSET ds, 0;*/
+	pushl %eax
+	CFI_ADJUST_CFA_OFFSET 4
+	CFI_REL_OFFSET eax, 0
+	pushl %ebp
+	CFI_ADJUST_CFA_OFFSET 4
+	CFI_REL_OFFSET ebp, 0
+	pushl %edi
+	CFI_ADJUST_CFA_OFFSET 4
+	CFI_REL_OFFSET edi, 0
+	pushl %esi
+	CFI_ADJUST_CFA_OFFSET 4
+	CFI_REL_OFFSET esi, 0
+	pushl %edx
+	CFI_ADJUST_CFA_OFFSET 4
+	CFI_REL_OFFSET edx, 0
+	pushl %ecx
+	CFI_ADJUST_CFA_OFFSET 4
+	CFI_REL_OFFSET ecx, 0
+	pushl %ebx
+	CFI_ADJUST_CFA_OFFSET 4
+	CFI_REL_OFFSET ebx, 0
+	movl $(__USER_DS), %edx
+	movl %edx, %ds
+	movl %edx, %es
+	movl $(__KERNEL_PERCPU), %edx
 	movl %edx, %fs
+.endm
 
-#define RESTORE_INT_REGS \
-	popl %ebx;	\
-	CFI_ADJUST_CFA_OFFSET -4;\
-	CFI_RESTORE ebx;\
-	popl %ecx;	\
-	CFI_ADJUST_CFA_OFFSET -4;\
-	CFI_RESTORE ecx;\
-	popl %edx;	\
-	CFI_ADJUST_CFA_OFFSET -4;\
-	CFI_RESTORE edx;\
-	popl %esi;	\
-	CFI_ADJUST_CFA_OFFSET -4;\
-	CFI_RESTORE esi;\
-	popl %edi;	\
-	CFI_ADJUST_CFA_OFFSET -4;\
-	CFI_RESTORE edi;\
-	popl %ebp;	\
-	CFI_ADJUST_CFA_OFFSET -4;\
-	CFI_RESTORE ebp;\
-	popl %eax;	\
-	CFI_ADJUST_CFA_OFFSET -4;\
+.macro RESTORE_INT_REGS
+	popl %ebx
+	CFI_ADJUST_CFA_OFFSET -4
+	CFI_RESTORE ebx
+	popl %ecx
+	CFI_ADJUST_CFA_OFFSET -4
+	CFI_RESTORE ecx
+	popl %edx
+	CFI_ADJUST_CFA_OFFSET -4
+	CFI_RESTORE edx
+	popl %esi
+	CFI_ADJUST_CFA_OFFSET -4
+	CFI_RESTORE esi
+	popl %edi
+	CFI_ADJUST_CFA_OFFSET -4
+	CFI_RESTORE edi
+	popl %ebp
+	CFI_ADJUST_CFA_OFFSET -4
+	CFI_RESTORE ebp
+	popl %eax
+	CFI_ADJUST_CFA_OFFSET -4
 	CFI_RESTORE eax
+.endm
 
-#define RESTORE_REGS	\
-	RESTORE_INT_REGS; \
-1:	popl %ds;	\
-	CFI_ADJUST_CFA_OFFSET -4;\
-	/*CFI_RESTORE ds;*/\
-2:	popl %es;	\
-	CFI_ADJUST_CFA_OFFSET -4;\
-	/*CFI_RESTORE es;*/\
-3:	popl %fs;	\
-	CFI_ADJUST_CFA_OFFSET -4;\
-	/*CFI_RESTORE fs;*/\
-.pushsection .fixup,"ax";	\
-4:	movl $0,(%esp);	\
-	jmp 1b;		\
-5:	movl $0,(%esp);	\
-	jmp 2b;		\
-6:	movl $0,(%esp);	\
-	jmp 3b;		\
-.section __ex_table,"a";\
-	.align 4;	\
-	.long 1b,4b;	\
-	.long 2b,5b;	\
-	.long 3b,6b;	\
+.macro RESTORE_REGS
+	RESTORE_INT_REGS
+1:	popl %ds
+	CFI_ADJUST_CFA_OFFSET -4
+	/*CFI_RESTORE ds;*/
+2:	popl %es
+	CFI_ADJUST_CFA_OFFSET -4
+	/*CFI_RESTORE es;*/
+3:	popl %fs
+	CFI_ADJUST_CFA_OFFSET -4
+	/*CFI_RESTORE fs;*/
+.pushsection .fixup, "ax"
+4:	movl $0, (%esp)
+	jmp 1b
+5:	movl $0, (%esp)
+	jmp 2b
+6:	movl $0, (%esp)
+	jmp 3b
+.section __ex_table, "a"
+	.align 4
+	.long 1b, 4b
+	.long 2b, 5b
+	.long 3b, 6b
 .popsection
+.endm
 
-#define RING0_INT_FRAME \
-	CFI_STARTPROC simple;\
-	CFI_SIGNAL_FRAME;\
-	CFI_DEF_CFA esp, 3*4;\
-	/*CFI_OFFSET cs, -2*4;*/\
+.macro RING0_INT_FRAME
+	CFI_STARTPROC simple
+	CFI_SIGNAL_FRAME
+	CFI_DEF_CFA esp, 3*4
+	/*CFI_OFFSET cs, -2*4;*/
 	CFI_OFFSET eip, -3*4
+.endm
 
-#define RING0_EC_FRAME \
-	CFI_STARTPROC simple;\
-	CFI_SIGNAL_FRAME;\
-	CFI_DEF_CFA esp, 4*4;\
-	/*CFI_OFFSET cs, -2*4;*/\
+.macro RING0_EC_FRAME
+	CFI_STARTPROC simple
+	CFI_SIGNAL_FRAME
+	CFI_DEF_CFA esp, 4*4
+	/*CFI_OFFSET cs, -2*4;*/
 	CFI_OFFSET eip, -3*4
+.endm
 
-#define RING0_PTREGS_FRAME \
-	CFI_STARTPROC simple;\
-	CFI_SIGNAL_FRAME;\
-	CFI_DEF_CFA esp, PT_OLDESP-PT_EBX;\
-	/*CFI_OFFSET cs, PT_CS-PT_OLDESP;*/\
-	CFI_OFFSET eip, PT_EIP-PT_OLDESP;\
-	/*CFI_OFFSET es, PT_ES-PT_OLDESP;*/\
-	/*CFI_OFFSET ds, PT_DS-PT_OLDESP;*/\
-	CFI_OFFSET eax, PT_EAX-PT_OLDESP;\
-	CFI_OFFSET ebp, PT_EBP-PT_OLDESP;\
-	CFI_OFFSET edi, PT_EDI-PT_OLDESP;\
-	CFI_OFFSET esi, PT_ESI-PT_OLDESP;\
-	CFI_OFFSET edx, PT_EDX-PT_OLDESP;\
-	CFI_OFFSET ecx, PT_ECX-PT_OLDESP;\
+.macro RING0_PTREGS_FRAME
+	CFI_STARTPROC simple
+	CFI_SIGNAL_FRAME
+	CFI_DEF_CFA esp, PT_OLDESP-PT_EBX
+	/*CFI_OFFSET cs, PT_CS-PT_OLDESP;*/
+	CFI_OFFSET eip, PT_EIP-PT_OLDESP
+	/*CFI_OFFSET es, PT_ES-PT_OLDESP;*/
+	/*CFI_OFFSET ds, PT_DS-PT_OLDESP;*/
+	CFI_OFFSET eax, PT_EAX-PT_OLDESP
+	CFI_OFFSET ebp, PT_EBP-PT_OLDESP
+	CFI_OFFSET edi, PT_EDI-PT_OLDESP
+	CFI_OFFSET esi, PT_ESI-PT_OLDESP
+	CFI_OFFSET edx, PT_EDX-PT_OLDESP
+	CFI_OFFSET ecx, PT_ECX-PT_OLDESP
 	CFI_OFFSET ebx, PT_EBX-PT_OLDESP
+.endm
 
 ENTRY(ret_from_fork)
 	CFI_STARTPROC
@@ -595,28 +601,30 @@ syscall_badsys:
 END(syscall_badsys)
 	CFI_ENDPROC
 
-#define FIXUP_ESPFIX_STACK \
-	/* since we are on a wrong stack, we cant make it a C code :( */ \
-	PER_CPU(gdt_page, %ebx); \
-	GET_DESC_BASE(GDT_ENTRY_ESPFIX_SS, %ebx, %eax, %ax, %al, %ah); \
-	addl %esp, %eax; \
-	pushl $__KERNEL_DS; \
-	CFI_ADJUST_CFA_OFFSET 4; \
-	pushl %eax; \
-	CFI_ADJUST_CFA_OFFSET 4; \
-	lss (%esp), %esp; \
-	CFI_ADJUST_CFA_OFFSET -8;
-#define UNWIND_ESPFIX_STACK \
-	movl %ss, %eax; \
-	/* see if on espfix stack */ \
-	cmpw $__ESPFIX_SS, %ax; \
-	jne 27f; \
-	movl $__KERNEL_DS, %eax; \
-	movl %eax, %ds; \
-	movl %eax, %es; \
-	/* switch to normal stack */ \
-	FIXUP_ESPFIX_STACK; \
-27:;
+.macro FIXUP_ESPFIX_STACK
+	/* since we are on a wrong stack, we cant make it a C code :( */
+	PER_CPU(gdt_page, %ebx)
+	GET_DESC_BASE(GDT_ENTRY_ESPFIX_SS, %ebx, %eax, %ax, %al, %ah)
+	addl %esp, %eax
+	pushl $__KERNEL_DS
+	CFI_ADJUST_CFA_OFFSET 4
+	pushl %eax
+	CFI_ADJUST_CFA_OFFSET 4
+	lss (%esp), %esp
+	CFI_ADJUST_CFA_OFFSET -8
+.endm
+.macro UNWIND_ESPFIX_STACK
+	movl %ss, %eax
+	/* see if on espfix stack */
+	cmpw $__ESPFIX_SS, %ax
+	jne 27f
+	movl $__KERNEL_DS, %eax
+	movl %eax, %ds
+	movl %eax, %es
+	/* switch to normal stack */
+	FIXUP_ESPFIX_STACK
+27:
+.endm
 
 /*
  * Build the entry stubs and pointer table with some assembler magic.
@@ -1136,26 +1144,27 @@ END(page_fault)
  * by hand onto the new stack - while updating the return eip past
  * the instruction that would have done it for sysenter.
  */
-#define FIX_STACK(offset, ok, label)		\
-	cmpw $__KERNEL_CS,4(%esp);		\
-	jne ok;					\
-label:						\
-	movl TSS_sysenter_sp0+offset(%esp),%esp;	\
-	CFI_DEF_CFA esp, 0;			\
-	CFI_UNDEFINED eip;			\
-	pushfl;					\
-	CFI_ADJUST_CFA_OFFSET 4;		\
-	pushl $__KERNEL_CS;			\
-	CFI_ADJUST_CFA_OFFSET 4;		\
-	pushl $sysenter_past_esp;		\
-	CFI_ADJUST_CFA_OFFSET 4;		\
+.macro FIX_STACK offset ok label
+	cmpw $__KERNEL_CS, 4(%esp)
+	jne \ok
+\label:
+	movl TSS_sysenter_sp0 + \offset(%esp), %esp
+	CFI_DEF_CFA esp, 0
+	CFI_UNDEFINED eip
+	pushfl
+	CFI_ADJUST_CFA_OFFSET 4
+	pushl $__KERNEL_CS
+	CFI_ADJUST_CFA_OFFSET 4
+	pushl $sysenter_past_esp
+	CFI_ADJUST_CFA_OFFSET 4
 	CFI_REL_OFFSET eip, 0
+.endm
 
 ENTRY(debug)
 	RING0_INT_FRAME
 	cmpl $ia32_sysenter_target,(%esp)
 	jne debug_stack_correct
-	FIX_STACK(12, debug_stack_correct, debug_esp_fix_insn)
+	FIX_STACK 12, debug_stack_correct, debug_esp_fix_insn
 debug_stack_correct:
 	pushl $-1			# mark this as an int
 	CFI_ADJUST_CFA_OFFSET 4
@@ -1213,7 +1222,7 @@ nmi_stack_correct:
 
 nmi_stack_fixup:
 	RING0_INT_FRAME
-	FIX_STACK(12,nmi_stack_correct, 1)
+	FIX_STACK 12, nmi_stack_correct, 1
 	jmp nmi_stack_correct
 
 nmi_debug_stack_check:
@@ -1224,7 +1233,7 @@ nmi_debug_stack_check:
 	jb nmi_stack_correct
 	cmpl $debug_esp_fix_insn,(%esp)
 	ja nmi_stack_correct
-	FIX_STACK(24,nmi_stack_correct, 1)
+	FIX_STACK 24, nmi_stack_correct, 1
 	jmp nmi_stack_correct
 
 nmi_espfix_stack:
-- 
1.6.0.2

[PATCH 09/11] x86: add %gs accessors for x86_32

[Tejun Heo]

Impact: cleanup

On x86_32, %gs is handled lazily.  It's not saved and restored on
kernel entry/exit but only when necessary which usually is during task
switch but there are few other places.  Currently, it's done by
calling savesegment() and loadsegment() explicitly.  Define
get_user_gs(), set_user_gs() and task_user_gs() and use them instead.

While at it, clean up register access macros in signal.c.

This cleans up code a bit and will help future changes.

Signed-off-by: Tejun Heo <tj@kernel.org>
---
 arch/x86/include/asm/a.out-core.h  |    2 +-
 arch/x86/include/asm/elf.h         |    2 +-
 arch/x86/include/asm/mmu_context.h |    2 +-
 arch/x86/include/asm/system.h      |    9 ++++++++
 arch/x86/kernel/process_32.c       |    6 ++--
 arch/x86/kernel/ptrace.c           |   14 +++++-------
 arch/x86/kernel/signal.c           |   41 ++++++++++++++----------------------
 arch/x86/kernel/vm86_32.c          |    4 +-
 arch/x86/math-emu/get_address.c    |    6 +---
 9 files changed, 41 insertions(+), 45 deletions(-)

diff --git a/arch/x86/include/asm/a.out-core.h b/arch/x86/include/asm/a.out-core.h
index 3c601f8..bb70e39 100644
--- a/arch/x86/include/asm/a.out-core.h
+++ b/arch/x86/include/asm/a.out-core.h
@@ -55,7 +55,7 @@ static inline void aout_dump_thread(struct pt_regs *regs, struct user *dump)
 	dump->regs.ds = (u16)regs->ds;
 	dump->regs.es = (u16)regs->es;
 	dump->regs.fs = (u16)regs->fs;
-	savesegment(gs, dump->regs.gs);
+	dump->regs.gs = get_user_gs(regs);
 	dump->regs.orig_ax = regs->orig_ax;
 	dump->regs.ip = regs->ip;
 	dump->regs.cs = (u16)regs->cs;
diff --git a/arch/x86/include/asm/elf.h b/arch/x86/include/asm/elf.h
index f51a3dd..39b0aac 100644
--- a/arch/x86/include/asm/elf.h
+++ b/arch/x86/include/asm/elf.h
@@ -124,7 +124,7 @@ do {						\
 	pr_reg[7] = regs->ds & 0xffff;		\
 	pr_reg[8] = regs->es & 0xffff;		\
 	pr_reg[9] = regs->fs & 0xffff;		\
-	savesegment(gs, pr_reg[10]);		\
+	pr_reg[10] = get_user_gs(regs);		\
 	pr_reg[11] = regs->orig_ax;		\
 	pr_reg[12] = regs->ip;			\
 	pr_reg[13] = regs->cs & 0xffff;		\
diff --git a/arch/x86/include/asm/mmu_context.h b/arch/x86/include/asm/mmu_context.h
index 52948df..4955165 100644
--- a/arch/x86/include/asm/mmu_context.h
+++ b/arch/x86/include/asm/mmu_context.h
@@ -79,7 +79,7 @@ do {						\
 #ifdef CONFIG_X86_32
 #define deactivate_mm(tsk, mm)			\
 do {						\
-	loadsegment(gs, 0);			\
+	set_user_gs(task_pt_regs(tsk), 0);	\
 } while (0)
 #else
 #define deactivate_mm(tsk, mm)			\
diff --git a/arch/x86/include/asm/system.h b/arch/x86/include/asm/system.h
index c223837..72082d3 100644
--- a/arch/x86/include/asm/system.h
+++ b/arch/x86/include/asm/system.h
@@ -182,6 +182,15 @@ extern void native_load_gs_index(unsigned);
 #define savesegment(seg, value)				\
 	asm("mov %%" #seg ",%0":"=r" (value) : : "memory")
 
+/*
+ * x86_32 user gs accessors.
+ */
+#ifdef CONFIG_X86_32
+#define get_user_gs(regs)	(u16)({unsigned long v; savesegment(gs, v); v;})
+#define set_user_gs(regs, v)	loadsegment(gs, (unsigned long)(v))
+#define task_user_gs(tsk)	((tsk)->thread.gs)
+#endif
+
 static inline unsigned long get_limit(unsigned long segment)
 {
 	unsigned long __limit;
diff --git a/arch/x86/kernel/process_32.c b/arch/x86/kernel/process_32.c
index eccfb58..317d956 100644
--- a/arch/x86/kernel/process_32.c
+++ b/arch/x86/kernel/process_32.c
@@ -129,7 +129,7 @@ void __show_regs(struct pt_regs *regs, int all)
 	if (user_mode_vm(regs)) {
 		sp = regs->sp;
 		ss = regs->ss & 0xffff;
-		savesegment(gs, gs);
+		gs = get_user_gs(regs);
 	} else {
 		sp = (unsigned long) (&regs->sp);
 		savesegment(ss, ss);
@@ -302,7 +302,7 @@ int copy_thread(int nr, unsigned long clone_flags, unsigned long sp,
 
 	p->thread.ip = (unsigned long) ret_from_fork;
 
-	savesegment(gs, p->thread.gs);
+	task_user_gs(p) = get_user_gs(regs);
 
 	tsk = current;
 	if (unlikely(test_tsk_thread_flag(tsk, TIF_IO_BITMAP))) {
@@ -340,7 +340,7 @@ int copy_thread(int nr, unsigned long clone_flags, unsigned long sp,
 void
 start_thread(struct pt_regs *regs, unsigned long new_ip, unsigned long new_sp)
 {
-	__asm__("movl %0, %%gs" : : "r"(0));
+	set_user_gs(regs, 0);
 	regs->fs		= 0;
 	set_fs(USER_DS);
 	regs->ds		= __USER_DS;
diff --git a/arch/x86/kernel/ptrace.c b/arch/x86/kernel/ptrace.c
index 0a5df5f..508b6b5 100644
--- a/arch/x86/kernel/ptrace.c
+++ b/arch/x86/kernel/ptrace.c
@@ -90,9 +90,10 @@ static u16 get_segment_reg(struct task_struct *task, unsigned long offset)
 	if (offset != offsetof(struct user_regs_struct, gs))
 		retval = *pt_regs_access(task_pt_regs(task), offset);
 	else {
-		retval = task->thread.gs;
 		if (task == current)
-			savesegment(gs, retval);
+			retval = get_user_gs(task_pt_regs(task));
+		else
+			retval = task_user_gs(task);
 	}
 	return retval;
 }
@@ -126,13 +127,10 @@ static int set_segment_reg(struct task_struct *task,
 		break;
 
 	case offsetof(struct user_regs_struct, gs):
-		task->thread.gs = value;
 		if (task == current)
-			/*
-			 * The user-mode %gs is not affected by
-			 * kernel entry, so we must update the CPU.
-			 */
-			loadsegment(gs, value);
+			set_user_gs(task_pt_regs(task), value);
+		else
+			task_user_gs(task) = value;
 	}
 
 	return 0;
diff --git a/arch/x86/kernel/signal.c b/arch/x86/kernel/signal.c
index 40e089b..b2f977e 100644
--- a/arch/x86/kernel/signal.c
+++ b/arch/x86/kernel/signal.c
@@ -50,27 +50,23 @@
 # define FIX_EFLAGS	__FIX_EFLAGS
 #endif
 
-#define COPY(x)			{		\
-	get_user_ex(regs->x, &sc->x);		\
-}
+#define COPY(x)			do {			\
+	get_user_ex(regs->x, &sc->x);			\
+} while (0)
 
-#define COPY_SEG(seg)		{			\
-		unsigned short tmp;			\
-		get_user_ex(tmp, &sc->seg);		\
-		regs->seg = tmp;			\
-}
+#define GET_SEG(seg)		({			\
+	unsigned short tmp;				\
+	get_user_ex(tmp, &sc->seg);			\
+	tmp;						\
+})
 
-#define COPY_SEG_CPL3(seg)	{			\
-		unsigned short tmp;			\
-		get_user_ex(tmp, &sc->seg);		\
-		regs->seg = tmp | 3;			\
-}
+#define COPY_SEG(seg)		do {			\
+	regs->seg = GET_SEG(seg);			\
+} while (0)
 
-#define GET_SEG(seg)		{			\
-		unsigned short tmp;			\
-		get_user_ex(tmp, &sc->seg);		\
-		loadsegment(seg, tmp);			\
-}
+#define COPY_SEG_CPL3(seg)	do {			\
+	regs->seg = GET_SEG(seg) | 3;			\
+} while (0)
 
 static int
 restore_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc,
@@ -86,7 +82,7 @@ restore_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc,
 	get_user_try {
 
 #ifdef CONFIG_X86_32
-		GET_SEG(gs);
+		set_user_gs(regs, GET_SEG(gs));
 		COPY_SEG(fs);
 		COPY_SEG(es);
 		COPY_SEG(ds);
@@ -138,12 +134,7 @@ setup_sigcontext(struct sigcontext __user *sc, void __user *fpstate,
 	put_user_try {
 
 #ifdef CONFIG_X86_32
-		{
-			unsigned int tmp;
-
-			savesegment(gs, tmp);
-			put_user_ex(tmp, (unsigned int __user *)&sc->gs);
-		}
+		put_user_ex(get_user_gs(regs), (unsigned int __user *)&sc->gs);
 		put_user_ex(regs->fs, (unsigned int __user *)&sc->fs);
 		put_user_ex(regs->es, (unsigned int __user *)&sc->es);
 		put_user_ex(regs->ds, (unsigned int __user *)&sc->ds);
diff --git a/arch/x86/kernel/vm86_32.c b/arch/x86/kernel/vm86_32.c
index 4eeb5cf..55ea30d 100644
--- a/arch/x86/kernel/vm86_32.c
+++ b/arch/x86/kernel/vm86_32.c
@@ -158,7 +158,7 @@ struct pt_regs *save_v86_state(struct kernel_vm86_regs *regs)
 	ret = KVM86->regs32;
 
 	ret->fs = current->thread.saved_fs;
-	loadsegment(gs, current->thread.saved_gs);
+	set_user_gs(ret, current->thread.saved_gs);
 
 	return ret;
 }
@@ -323,7 +323,7 @@ static void do_sys_vm86(struct kernel_vm86_struct *info, struct task_struct *tsk
 	info->regs32->ax = 0;
 	tsk->thread.saved_sp0 = tsk->thread.sp0;
 	tsk->thread.saved_fs = info->regs32->fs;
-	savesegment(gs, tsk->thread.saved_gs);
+	tsk->thread.saved_gs = get_user_gs(info->regs32);
 
 	tss = &per_cpu(init_tss, get_cpu());
 	tsk->thread.sp0 = (unsigned long) &info->VM86_TSS_ESP0;
diff --git a/arch/x86/math-emu/get_address.c b/arch/x86/math-emu/get_address.c
index 420b3b6..6ef5e99 100644
--- a/arch/x86/math-emu/get_address.c
+++ b/arch/x86/math-emu/get_address.c
@@ -150,11 +150,9 @@ static long pm_address(u_char FPU_modrm, u_char segment,
 #endif /* PARANOID */
 
 	switch (segment) {
-		/* gs isn't used by the kernel, so it still has its
-		   user-space value. */
 	case PREFIX_GS_ - 1:
-		/* N.B. - movl %seg, mem is a 2 byte write regardless of prefix */
-		savesegment(gs, addr->selector);
+		/* user gs handling can be lazy, use special accessors */
+		addr->selector = get_user_gs(FPU_info->regs);
 		break;
 	default:
 		addr->selector = PM_REG_(segment);
-- 
1.6.0.2

[PATCH 10/11] x86: make lazy %gs optional on x86_32

[Tejun Heo]

Impact: pt_regs changed, lazy gs handling made optional, add slight
        overhead to SAVE_ALL, simplifies error_code path a bit

On x86_32, %gs hasn't been used by kernel and handled lazily.  pt_regs
doesn't have place for it and gs is saved/loaded only when necessary.
In preparation for stack protector support, this patch makes lazy %gs
handling optional by doing the followings.

* Add CONFIG_X86_32_LAZY_GS and place for gs in pt_regs.

* Save and restore %gs along with other registers in entry_32.S unless
  LAZY_GS.  Note that this unfortunately adds "pushl $0" on SAVE_ALL
  even when LAZY_GS.  However, it adds no overhead to common exit path
  and simplifies entry path with error code.

* Define different user_gs accessors depending on LAZY_GS and add
  lazy_save_gs() and lazy_load_gs() which are noop if !LAZY_GS.  The
  lazy_*_gs() ops are used to save, load and clear %gs lazily.

* Define ELF_CORE_COPY_KERNEL_REGS() which always read %gs directly.

xen and lguest changes need to be verified.

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Jeremy Fitzhardinge <jeremy@xensource.com>
Cc: Rusty Russell <rusty@rustcorp.com.au>
---
 arch/x86/Kconfig                   |    4 +
 arch/x86/include/asm/elf.h         |   15 ++++-
 arch/x86/include/asm/mmu_context.h |    2 +-
 arch/x86/include/asm/ptrace.h      |    4 +-
 arch/x86/include/asm/system.h      |   12 +++-
 arch/x86/kernel/asm-offsets_32.c   |    1 +
 arch/x86/kernel/entry_32.S         |  132 ++++++++++++++++++++++++++++++-----
 arch/x86/kernel/process_32.c       |    4 +-
 arch/x86/kernel/ptrace.c           |    5 +-
 arch/x86/lguest/boot.c             |    2 +-
 arch/x86/xen/enlighten.c           |   17 +++--
 11 files changed, 158 insertions(+), 40 deletions(-)

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index f9b3fde..e91093a 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -196,6 +196,10 @@ config X86_TRAMPOLINE
 	depends on SMP || (64BIT && ACPI_SLEEP)
 	default y
 
+config X86_32_LAZY_GS
+	def_bool y
+	depends on X86_32
+
 config KTIME_SCALAR
 	def_bool X86_32
 source "init/Kconfig"
diff --git a/arch/x86/include/asm/elf.h b/arch/x86/include/asm/elf.h
index 39b0aac..83c1bc8 100644
--- a/arch/x86/include/asm/elf.h
+++ b/arch/x86/include/asm/elf.h
@@ -112,7 +112,7 @@ extern unsigned int vdso_enabled;
  * now struct_user_regs, they are different)
  */
 
-#define ELF_CORE_COPY_REGS(pr_reg, regs)	\
+#define ELF_CORE_COPY_REGS_COMMON(pr_reg, regs)	\
 do {						\
 	pr_reg[0] = regs->bx;			\
 	pr_reg[1] = regs->cx;			\
@@ -124,7 +124,6 @@ do {						\
 	pr_reg[7] = regs->ds & 0xffff;		\
 	pr_reg[8] = regs->es & 0xffff;		\
 	pr_reg[9] = regs->fs & 0xffff;		\
-	pr_reg[10] = get_user_gs(regs);		\
 	pr_reg[11] = regs->orig_ax;		\
 	pr_reg[12] = regs->ip;			\
 	pr_reg[13] = regs->cs & 0xffff;		\
@@ -133,6 +132,18 @@ do {						\
 	pr_reg[16] = regs->ss & 0xffff;		\
 } while (0);
 
+#define ELF_CORE_COPY_REGS(pr_reg, regs)	\
+do {						\
+	ELF_CORE_COPY_REGS_COMMON(pr_reg, regs);\
+	pr_reg[10] = get_user_gs(regs);		\
+} while (0);
+
+#define ELF_CORE_COPY_KERNEL_REGS(pr_reg, regs)	\
+do {						\
+	ELF_CORE_COPY_REGS_COMMON(pr_reg, regs);\
+	savesegment(gs, pr_reg[10]);		\
+} while (0);
+
 #define ELF_PLATFORM	(utsname()->machine)
 #define set_personality_64bit()	do { } while (0)
 
diff --git a/arch/x86/include/asm/mmu_context.h b/arch/x86/include/asm/mmu_context.h
index 4955165..f923203 100644
--- a/arch/x86/include/asm/mmu_context.h
+++ b/arch/x86/include/asm/mmu_context.h
@@ -79,7 +79,7 @@ do {						\
 #ifdef CONFIG_X86_32
 #define deactivate_mm(tsk, mm)			\
 do {						\
-	set_user_gs(task_pt_regs(tsk), 0);	\
+	lazy_load_gs(0);			\
 } while (0)
 #else
 #define deactivate_mm(tsk, mm)			\
diff --git a/arch/x86/include/asm/ptrace.h b/arch/x86/include/asm/ptrace.h
index 6d34d95..e304b66 100644
--- a/arch/x86/include/asm/ptrace.h
+++ b/arch/x86/include/asm/ptrace.h
@@ -28,7 +28,7 @@ struct pt_regs {
 	int  xds;
 	int  xes;
 	int  xfs;
-	/* int  gs; */
+	int  xgs;
 	long orig_eax;
 	long eip;
 	int  xcs;
@@ -50,7 +50,7 @@ struct pt_regs {
 	unsigned long ds;
 	unsigned long es;
 	unsigned long fs;
-	/* int  gs; */
+	unsigned long gs;
 	unsigned long orig_ax;
 	unsigned long ip;
 	unsigned long cs;
diff --git a/arch/x86/include/asm/system.h b/arch/x86/include/asm/system.h
index 72082d3..e658bbe 100644
--- a/arch/x86/include/asm/system.h
+++ b/arch/x86/include/asm/system.h
@@ -186,10 +186,20 @@ extern void native_load_gs_index(unsigned);
  * x86_32 user gs accessors.
  */
 #ifdef CONFIG_X86_32
+#ifdef CONFIG_X86_32_LAZY_GS
 #define get_user_gs(regs)	(u16)({unsigned long v; savesegment(gs, v); v;})
 #define set_user_gs(regs, v)	loadsegment(gs, (unsigned long)(v))
 #define task_user_gs(tsk)	((tsk)->thread.gs)
-#endif
+#define lazy_save_gs(v)		savesegment(gs, (v))
+#define lazy_load_gs(v)		loadsegment(gs, (v))
+#else	/* X86_32_LAZY_GS */
+#define get_user_gs(regs)	(u16)((regs)->gs)
+#define set_user_gs(regs, v)	do { (regs)->gs = (v); } while (0)
+#define task_user_gs(tsk)	(task_pt_regs(tsk)->gs)
+#define lazy_save_gs(v)		do { } while (0)
+#define lazy_load_gs(v)		do { } while (0)
+#endif	/* X86_32_LAZY_GS */
+#endif	/* X86_32 */
 
 static inline unsigned long get_limit(unsigned long segment)
 {
diff --git a/arch/x86/kernel/asm-offsets_32.c b/arch/x86/kernel/asm-offsets_32.c
index ee4df08..fbf2f33 100644
--- a/arch/x86/kernel/asm-offsets_32.c
+++ b/arch/x86/kernel/asm-offsets_32.c
@@ -75,6 +75,7 @@ void foo(void)
 	OFFSET(PT_DS,  pt_regs, ds);
 	OFFSET(PT_ES,  pt_regs, es);
 	OFFSET(PT_FS,  pt_regs, fs);
+	OFFSET(PT_GS,  pt_regs, gs);
 	OFFSET(PT_ORIG_EAX, pt_regs, orig_ax);
 	OFFSET(PT_EIP, pt_regs, ip);
 	OFFSET(PT_CS,  pt_regs, cs);
diff --git a/arch/x86/kernel/entry_32.S b/arch/x86/kernel/entry_32.S
index 224739c..d3be889 100644
--- a/arch/x86/kernel/entry_32.S
+++ b/arch/x86/kernel/entry_32.S
@@ -30,12 +30,13 @@
  *	1C(%esp) - %ds
  *	20(%esp) - %es
  *	24(%esp) - %fs
- *	28(%esp) - orig_eax
- *	2C(%esp) - %eip
- *	30(%esp) - %cs
- *	34(%esp) - %eflags
- *	38(%esp) - %oldesp
- *	3C(%esp) - %oldss
+ *	28(%esp) - %gs		saved iff !CONFIG_X86_32_LAZY_GS
+ *	2C(%esp) - orig_eax
+ *	30(%esp) - %eip
+ *	34(%esp) - %cs
+ *	38(%esp) - %eflags
+ *	3C(%esp) - %oldesp
+ *	40(%esp) - %oldss
  *
  * "current" is in register %ebx during any slow entries.
  */
@@ -101,8 +102,99 @@
 #define resume_userspace_sig	resume_userspace
 #endif
 
+/*
+ * User gs save/restore
+ *
+ * %gs is used for userland TLS and kernel only uses it for stack
+ * canary which is required to be at %gs:20 by gcc.  Read the comment
+ * at the top of stackprotector.h for more info.
+ *
+ * Local labels 98 and 99 are used.
+ */
+#ifdef CONFIG_X86_32_LAZY_GS
+
+ /* unfortunately push/pop can't be no-op */
+.macro PUSH_GS
+	pushl $0
+	CFI_ADJUST_CFA_OFFSET 4
+.endm
+.macro POP_GS pop=0
+	addl $(4 + \pop), %esp
+	CFI_ADJUST_CFA_OFFSET -(4 + \pop)
+.endm
+.macro POP_GS_EX
+.endm
+
+ /* all the rest are no-op */
+.macro PTGS_TO_GS
+.endm
+.macro PTGS_TO_GS_EX
+.endm
+.macro GS_TO_REG reg
+.endm
+.macro REG_TO_PTGS reg
+.endm
+.macro SET_KERNEL_GS reg
+.endm
+
+#else	/* CONFIG_X86_32_LAZY_GS */
+
+.macro PUSH_GS
+	pushl %gs
+	CFI_ADJUST_CFA_OFFSET 4
+	/*CFI_REL_OFFSET gs, 0*/
+.endm
+
+.macro POP_GS pop=0
+98:	popl %gs
+	CFI_ADJUST_CFA_OFFSET -4
+	/*CFI_RESTORE gs*/
+  .if \pop <> 0
+	add $\pop, %esp
+	CFI_ADJUST_CFA_OFFSET -\pop
+  .endif
+.endm
+.macro POP_GS_EX
+.pushsection .fixup, "ax"
+99:	movl $0, (%esp)
+	jmp 98b
+.section __ex_table, "a"
+	.align 4
+	.long 98b, 99b
+.popsection
+.endm
+
+.macro PTGS_TO_GS
+98:	mov PT_GS(%esp), %gs
+.endm
+.macro PTGS_TO_GS_EX
+.pushsection .fixup, "ax"
+99:	movl $0, PT_GS(%esp)
+	jmp 98b
+.section __ex_table, "a"
+	.align 4
+	.long 98b, 99b
+.popsection
+.endm
+
+.macro GS_TO_REG reg
+	movl %gs, \reg
+	/*CFI_REGISTER gs, \reg*/
+.endm
+.macro REG_TO_PTGS reg
+	movl \reg, PT_GS(%esp)
+	/*CFI_REL_OFFSET gs, PT_GS*/
+.endm
+.macro SET_KERNEL_GS reg
+	xorl \reg, \reg
+	movl \reg, %gs
+.endm
+
+#endif	/* CONFIG_X86_32_LAZY_GS */
+
 .macro SAVE_ALL
 	cld
+	PUSH_GS
 	pushl %fs
 	CFI_ADJUST_CFA_OFFSET 4
 	/*CFI_REL_OFFSET fs, 0;*/
@@ -138,6 +230,7 @@
 	movl %edx, %es
 	movl $(__KERNEL_PERCPU), %edx
 	movl %edx, %fs
+	SET_KERNEL_GS %edx
 .endm
 
 .macro RESTORE_INT_REGS
@@ -164,7 +257,7 @@
 	CFI_RESTORE eax
 .endm
 
-.macro RESTORE_REGS
+.macro RESTORE_REGS pop=0
 	RESTORE_INT_REGS
 1:	popl %ds
 	CFI_ADJUST_CFA_OFFSET -4
@@ -175,6 +268,7 @@
 3:	popl %fs
 	CFI_ADJUST_CFA_OFFSET -4
 	/*CFI_RESTORE fs;*/
+	POP_GS \pop
 .pushsection .fixup, "ax"
 4:	movl $0, (%esp)
 	jmp 1b
@@ -188,6 +282,7 @@
 	.long 2b, 5b
 	.long 3b, 6b
 .popsection
+	POP_GS_EX
 .endm
 
 .macro RING0_INT_FRAME
@@ -368,6 +463,7 @@ sysenter_exit:
 	xorl %ebp,%ebp
 	TRACE_IRQS_ON
 1:	mov  PT_FS(%esp), %fs
+	PTGS_TO_GS
 	ENABLE_INTERRUPTS_SYSEXIT
 
 #ifdef CONFIG_AUDITSYSCALL
@@ -416,6 +512,7 @@ sysexit_audit:
 	.align 4
 	.long 1b,2b
 .popsection
+	PTGS_TO_GS_EX
 ENDPROC(ia32_sysenter_target)
 
 	# system call handler stub
@@ -458,8 +555,7 @@ restore_all:
 restore_nocheck:
 	TRACE_IRQS_IRET
 restore_nocheck_notrace:
-	RESTORE_REGS
-	addl $4, %esp			# skip orig_eax/error_code
+	RESTORE_REGS 4			# skip orig_eax/error_code
 	CFI_ADJUST_CFA_OFFSET -4
 irq_return:
 	INTERRUPT_RETURN
@@ -1078,7 +1174,10 @@ ENTRY(page_fault)
 	CFI_ADJUST_CFA_OFFSET 4
 	ALIGN
 error_code:
-	/* the function address is in %fs's slot on the stack */
+	/* the function address is in %gs's slot on the stack */
+	pushl %fs
+	CFI_ADJUST_CFA_OFFSET 4
+	/*CFI_REL_OFFSET fs, 0*/
 	pushl %es
 	CFI_ADJUST_CFA_OFFSET 4
 	/*CFI_REL_OFFSET es, 0*/
@@ -1107,20 +1206,15 @@ error_code:
 	CFI_ADJUST_CFA_OFFSET 4
 	CFI_REL_OFFSET ebx, 0
 	cld
-	pushl %fs
-	CFI_ADJUST_CFA_OFFSET 4
-	/*CFI_REL_OFFSET fs, 0*/
 	movl $(__KERNEL_PERCPU), %ecx
 	movl %ecx, %fs
 	UNWIND_ESPFIX_STACK
-	popl %ecx
-	CFI_ADJUST_CFA_OFFSET -4
-	/*CFI_REGISTER es, ecx*/
-	movl PT_FS(%esp), %edi		# get the function address
+	GS_TO_REG %ecx
+	movl PT_GS(%esp), %edi		# get the function address
 	movl PT_ORIG_EAX(%esp), %edx	# get the error code
 	movl $-1, PT_ORIG_EAX(%esp)	# no syscall to restart
-	mov  %ecx, PT_FS(%esp)
-	/*CFI_REL_OFFSET fs, ES*/
+	REG_TO_PTGS %ecx
+	SET_KERNEL_GS %ecx
 	movl $(__USER_DS), %ecx
 	movl %ecx, %ds
 	movl %ecx, %es
diff --git a/arch/x86/kernel/process_32.c b/arch/x86/kernel/process_32.c
index 317d956..461d0a7 100644
--- a/arch/x86/kernel/process_32.c
+++ b/arch/x86/kernel/process_32.c
@@ -537,7 +537,7 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p)
 	 * used %fs or %gs (it does not today), or if the kernel is
 	 * running inside of a hypervisor layer.
 	 */
-	savesegment(gs, prev->gs);
+	lazy_save_gs(prev->gs);
 
 	/*
 	 * Load the per-thread Thread-Local Storage descriptor.
@@ -583,7 +583,7 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p)
 	 * Restore %gs if needed (which is common)
 	 */
 	if (prev->gs | next->gs)
-		loadsegment(gs, next->gs);
+		lazy_load_gs(next->gs);
 
 	percpu_write(current_task, next_p);
 
diff --git a/arch/x86/kernel/ptrace.c b/arch/x86/kernel/ptrace.c
index 508b6b5..7ec39ab 100644
--- a/arch/x86/kernel/ptrace.c
+++ b/arch/x86/kernel/ptrace.c
@@ -75,10 +75,7 @@ static inline bool invalid_selector(u16 value)
 static unsigned long *pt_regs_access(struct pt_regs *regs, unsigned long regno)
 {
 	BUILD_BUG_ON(offsetof(struct pt_regs, bx) != 0);
-	regno >>= 2;
-	if (regno > FS)
-		--regno;
-	return &regs->bx + regno;
+	return &regs->bx + (regno >> 2);
 }
 
 static u16 get_segment_reg(struct task_struct *task, unsigned long offset)
diff --git a/arch/x86/lguest/boot.c b/arch/x86/lguest/boot.c
index 19e33b6..da2e314 100644
--- a/arch/x86/lguest/boot.c
+++ b/arch/x86/lguest/boot.c
@@ -283,7 +283,7 @@ static void lguest_load_tls(struct thread_struct *t, unsigned int cpu)
 	/* There's one problem which normal hardware doesn't have: the Host
 	 * can't handle us removing entries we're currently using.  So we clear
 	 * the GS register here: if it's needed it'll be reloaded anyway. */
-	loadsegment(gs, 0);
+	lazy_load_gs(0);
 	lazy_hcall(LHCALL_LOAD_TLS, __pa(&t->tls_array), cpu, 0);
 }
 
diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
index 3723034..95ff6a0 100644
--- a/arch/x86/xen/enlighten.c
+++ b/arch/x86/xen/enlighten.c
@@ -323,13 +323,14 @@ static void load_TLS_descriptor(struct thread_struct *t,
 static void xen_load_tls(struct thread_struct *t, unsigned int cpu)
 {
 	/*
-	 * XXX sleazy hack: If we're being called in a lazy-cpu zone,
-	 * it means we're in a context switch, and %gs has just been
-	 * saved.  This means we can zero it out to prevent faults on
-	 * exit from the hypervisor if the next process has no %gs.
-	 * Either way, it has been saved, and the new value will get
-	 * loaded properly.  This will go away as soon as Xen has been
-	 * modified to not save/restore %gs for normal hypercalls.
+	 * XXX sleazy hack: If we're being called in a lazy-cpu zone
+	 * and lazy gs handling is enabled, it means we're in a
+	 * context switch, and %gs has just been saved.  This means we
+	 * can zero it out to prevent faults on exit from the
+	 * hypervisor if the next process has no %gs.  Either way, it
+	 * has been saved, and the new value will get loaded properly.
+	 * This will go away as soon as Xen has been modified to not
+	 * save/restore %gs for normal hypercalls.
 	 *
 	 * On x86_64, this hack is not used for %gs, because gs points
 	 * to KERNEL_GS_BASE (and uses it for PDA references), so we
@@ -341,7 +342,7 @@ static void xen_load_tls(struct thread_struct *t, unsigned int cpu)
 	 */
 	if (paravirt_get_lazy_mode() == PARAVIRT_LAZY_CPU) {
 #ifdef CONFIG_X86_32
-		loadsegment(gs, 0);
+		lazy_load_gs(0);
 #else
 		loadsegment(fs, 0);
 #endif
-- 
1.6.0.2

[PATCH 11/11] x86: implement x86_32 stack protector

[Tejun Heo]

Impact: stack protector for x86_32

Implement stack protector for x86_32.  GDT entry 28 is used for it.
It's set to point to stack_canary-20 and have the length of 24 bytes.
CONFIG_CC_STACKPROTECTOR turns off CONFIG_X86_32_LAZY_GS and sets %gs
to the stack canary segment on entry.  As %gs is otherwise unused by
the kernel, the canary can be anywhere.  It's defined as a percpu
variable.

x86_32 exception handlers take register frame on stack directly as
struct pt_regs.  With -fstack-protector turned on, gcc copies the
whole structure after the stack canary and (of course) doesn't copy
back on return thus losing all changed.  For now, -fno-stack-protector
is added to all files which contain those functions.  We definitely
need something better.

Signed-off-by: Tejun Heo <tj@kernel.org>
---
 arch/x86/Kconfig                          |    3 +-
 arch/x86/include/asm/processor.h          |    4 +
 arch/x86/include/asm/segment.h            |    9 +++-
 arch/x86/include/asm/stackprotector.h     |   91 +++++++++++++++++++++++++++--
 arch/x86/include/asm/system.h             |   21 +++++++
 arch/x86/kernel/Makefile                  |   18 ++++++
 arch/x86/kernel/cpu/common.c              |   17 ++++--
 arch/x86/kernel/entry_32.S                |    2 +-
 arch/x86/kernel/head_32.S                 |   20 ++++++-
 arch/x86/kernel/process_32.c              |    1 +
 arch/x86/kernel/setup_percpu.c            |    2 +
 scripts/gcc-x86_32-has-stack-protector.sh |    8 +++
 12 files changed, 180 insertions(+), 16 deletions(-)
 create mode 100644 scripts/gcc-x86_32-has-stack-protector.sh

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index e91093a..31c555f 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -198,7 +198,7 @@ config X86_TRAMPOLINE
 
 config X86_32_LAZY_GS
 	def_bool y
-	depends on X86_32
+	depends on X86_32 && !CC_STACKPROTECTOR
 
 config KTIME_SCALAR
 	def_bool X86_32
@@ -1342,7 +1342,6 @@ config CC_STACKPROTECTOR_ALL
 
 config CC_STACKPROTECTOR
 	bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
-	depends on X86_64
 	select CC_STACKPROTECTOR_ALL
 	---help---
 	  This option turns on the -fstack-protector GCC feature. This
diff --git a/arch/x86/include/asm/processor.h b/arch/x86/include/asm/processor.h
index 80b8be2..a013383 100644
--- a/arch/x86/include/asm/processor.h
+++ b/arch/x86/include/asm/processor.h
@@ -396,7 +396,11 @@ DECLARE_PER_CPU(union irq_stack_union, irq_stack_union);
 DECLARE_INIT_PER_CPU(irq_stack_union);
 
 DECLARE_PER_CPU(char *, irq_stack_ptr);
+#else	/* X86_64 */
+#ifdef CONFIG_CC_STACKPROTECTOR
+DECLARE_PER_CPU(unsigned long, stack_canary);
 #endif
+#endif	/* X86_64 */
 
 extern void print_cpu_info(struct cpuinfo_x86 *);
 extern unsigned int xstate_size;
diff --git a/arch/x86/include/asm/segment.h b/arch/x86/include/asm/segment.h
index 1dc1b51..14e0ed8 100644
--- a/arch/x86/include/asm/segment.h
+++ b/arch/x86/include/asm/segment.h
@@ -61,7 +61,7 @@
  *
  *  26 - ESPFIX small SS
  *  27 - per-cpu			[ offset to per-cpu data area ]
- *  28 - unused
+ *  28 - stack_canary-20		[ for stack protector ]
  *  29 - unused
  *  30 - unused
  *  31 - TSS for double fault handler
@@ -95,6 +95,13 @@
 #define __KERNEL_PERCPU 0
 #endif
 
+#define GDT_ENTRY_STACK_CANARY		(GDT_ENTRY_KERNEL_BASE + 16)
+#ifdef CONFIG_CC_STACKPROTECTOR
+#define __KERNEL_STACK_CANARY		(GDT_ENTRY_STACK_CANARY * 8)
+#else
+#define __KERNEL_STACK_CANARY		0
+#endif
+
 #define GDT_ENTRY_DOUBLEFAULT_TSS	31
 
 /*
diff --git a/arch/x86/include/asm/stackprotector.h b/arch/x86/include/asm/stackprotector.h
index ee275e9..fa7e5bd 100644
--- a/arch/x86/include/asm/stackprotector.h
+++ b/arch/x86/include/asm/stackprotector.h
@@ -1,3 +1,35 @@
+/*
+ * GCC stack protector support.
+ *
+ * Stack protector works by putting predefined pattern at the start of
+ * the stack frame and verifying that it hasn't been overwritten when
+ * returning from the function.  The pattern is called stack canary
+ * and unfortunately gcc requires it to be at a fixed offset from %gs.
+ * On x86_64, the offset is 40 bytes and on x86_32 20 bytes.  x86_64
+ * and x86_32 use segment registers differently and thus handles this
+ * requirement differently.
+ *
+ * On x86_64, %gs is shared by percpu area and stack canary.  All
+ * percpu symbols are zero based and %gs points to the base of percpu
+ * area.  The first occupant of the percpu area is always
+ * irq_stack_union which contains stack_canary at offset 40.  Userland
+ * %gs is always saved and restored on kernel entry and exit using
+ * swapgs, so stack protector doesn't add any complexity there.
+ *
+ * On x86_32, it's slightly more complicated.  As in x86_64, %gs is
+ * used for userland TLS.  Unfortunately, some processors are much
+ * slower at loading segment registers with different value when
+ * entering and leaving the kernel, so the kernel uses %fs for percpu
+ * area and manages %gs lazily so that %gs is switched only when
+ * necessary, usually during task switch.
+ *
+ * As gcc requires the stack canary at %gs:20, %gs can't be managed
+ * lazily if stack protector is enabled, so the kernel saves and
+ * restores userland %gs on kernel entry and exit.  This behavior is
+ * controlled by CONFIG_X86_32_LAZY_GS and accessors are defined in
+ * system.h to hide the details.
+ */
+
 #ifndef _ASM_STACKPROTECTOR_H
 #define _ASM_STACKPROTECTOR_H 1
 
@@ -6,9 +38,19 @@
 #include <asm/tsc.h>
 #include <asm/processor.h>
 #include <asm/percpu.h>
+#include <asm/system.h>
+#include <asm/desc.h>
 #include <linux/random.h>
 
 /*
+ * 24 byte read-only segment initializer for stack canary.  Linker
+ * can't handle the address bit shifting.  Address will be set in
+ * head_32 for boot CPU and setup_per_cpu_areas() for others.
+ */
+#define GDT_STACK_CANARY_INIT						\
+	[GDT_ENTRY_STACK_CANARY] = { { { 0x00000018, 0x00409000 } } },
+
+/*
  * Initialize the stackprotector canary value.
  *
  * NOTE: this must only be called from functions that never return,
@@ -19,12 +61,9 @@ static __always_inline void boot_init_stack_canary(void)
 	u64 canary;
 	u64 tsc;
 
-	/*
-	 * Build time only check to make sure the stack_canary is at
-	 * offset 40 in the pda; this is a gcc ABI requirement
-	 */
+#ifdef CONFIG_X86_64
 	BUILD_BUG_ON(offsetof(union irq_stack_union, stack_canary) != 40);
-
+#endif
 	/*
 	 * We both use the random pool and the current TSC as a source
 	 * of randomness. The TSC only matters for very early init,
@@ -36,7 +75,49 @@ static __always_inline void boot_init_stack_canary(void)
 	canary += tsc + (tsc << 32UL);
 
 	current->stack_canary = canary;
+#ifdef CONFIG_X86_64
 	percpu_write(irq_stack_union.stack_canary, canary);
+#else
+	percpu_write(stack_canary, canary);
+#endif
+}
+
+static inline void setup_stack_canary_segment(int cpu)
+{
+#ifdef CONFIG_X86_32
+	unsigned long canary = (unsigned long)&per_cpu(stack_canary, cpu);
+	struct desc_struct *gdt_table = get_cpu_gdt_table(cpu);
+	struct desc_struct desc;
+
+	desc = gdt_table[GDT_ENTRY_STACK_CANARY];
+	desc.base0 = canary & 0xffff;
+	desc.base1 = (canary >> 16) & 0xff;
+	desc.base2 = (canary >> 24) & 0xff;
+	write_gdt_entry(gdt_table, GDT_ENTRY_STACK_CANARY, &desc, DESCTYPE_S);
+#endif
+}
+
+static inline void load_stack_canary_segment(void)
+{
+#ifdef CONFIG_X86_32
+	asm("mov %0, %%gs" : : "r" (__KERNEL_STACK_CANARY) : "memory");
+#endif
+}
+
+#else	/* CC_STACKPROTECTOR */
+
+#define GDT_STACK_CANARY_INIT
+
+/* dummy boot_init_stack_canary() is defined in linux/stackprotector.h */
+
+static inline void setup_stack_canary_segment(int cpu)
+{ }
+
+static inline void load_stack_canary_segment(void)
+{
+#ifdef CONFIG_X86_32
+	asm volatile ("mov %0, %%gs" : : "r" (0));
+#endif
 }
 
 #endif	/* CC_STACKPROTECTOR */
diff --git a/arch/x86/include/asm/system.h b/arch/x86/include/asm/system.h
index e658bbe..4ded307 100644
--- a/arch/x86/include/asm/system.h
+++ b/arch/x86/include/asm/system.h
@@ -23,6 +23,22 @@ struct task_struct *__switch_to(struct task_struct *prev,
 
 #ifdef CONFIG_X86_32
 
+#ifdef CONFIG_CC_STACKPROTECTOR
+#define __switch_canary							\
+	"movl "__percpu_arg([current_task])",%%ebx\n\t"			\
+	"movl %P[task_canary](%%ebx),%%ebx\n\t"				\
+	"movl %%ebx,"__percpu_arg([stack_canary])"\n\t"
+#define __switch_canary_oparam						\
+	, [stack_canary] "=m" (per_cpu_var(stack_canary))
+#define __switch_canary_iparam						\
+	, [current_task] "m" (per_cpu_var(current_task))		\
+	, [task_canary] "i" (offsetof(struct task_struct, stack_canary))
+#else	/* CC_STACKPROTECTOR */
+#define __switch_canary
+#define __switch_canary_oparam
+#define __switch_canary_iparam
+#endif	/* CC_STACKPROTECTOR */
+
 /*
  * Saving eflags is important. It switches not only IOPL between tasks,
  * it also protects other tasks from NT leaking through sysenter etc.
@@ -46,6 +62,7 @@ do {									\
 		     "pushl %[next_ip]\n\t"	/* restore EIP   */	\
 		     "jmp __switch_to\n"	/* regparm call  */	\
 		     "1:\t"						\
+		     __switch_canary					\
 		     "popl %%ebp\n\t"		/* restore EBP   */	\
 		     "popfl\n"			/* restore flags */	\
 									\
@@ -58,6 +75,8 @@ do {									\
 		       "=b" (ebx), "=c" (ecx), "=d" (edx),		\
 		       "=S" (esi), "=D" (edi)				\
 		       							\
+		       __switch_canary_oparam				\
+									\
 		       /* input parameters: */				\
 		     : [next_sp]  "m" (next->thread.sp),		\
 		       [next_ip]  "m" (next->thread.ip),		\
@@ -66,6 +85,8 @@ do {									\
 		       [prev]     "a" (prev),				\
 		       [next]     "d" (next)				\
 									\
+		       __switch_canary_iparam				\
+									\
 		     : /* reloaded segment registers */			\
 			"memory");					\
 } while (0)
diff --git a/arch/x86/kernel/Makefile b/arch/x86/kernel/Makefile
index a11e5ac..0da4e4d 100644
--- a/arch/x86/kernel/Makefile
+++ b/arch/x86/kernel/Makefile
@@ -24,6 +24,24 @@ CFLAGS_vsyscall_64.o	:= $(PROFILING) -g0 $(nostackp)
 CFLAGS_hpet.o		:= $(nostackp)
 CFLAGS_tsc.o		:= $(nostackp)
 CFLAGS_paravirt.o	:= $(nostackp)
+#
+# On x86_32, register frame is passed verbatim on stack as struct
+# pt_regs.  gcc considers the parameter to belong to the callee and
+# with -fstack-protector it copies pt_regs to the callee's stack frame
+# to put the structure after the stack canary causing changes made by
+# the exception handlers to be lost.  Turn off stack protector for all
+# files containing functions which take struct pt_regs from register
+# frame.
+#
+# The proper way to fix this is to teach gcc that the argument belongs
+# to the caller for these functions, oh well...
+#
+ifdef CONFIG_X86_32
+CFLAGS_process_32.o	:= $(nostackp)
+CFLAGS_vm86_32.o	:= $(nostackp)
+CFLAGS_signal.o		:= $(nostackp)
+CFLAGS_traps.o		:= $(nostackp)
+endif
 
 obj-y			:= process_$(BITS).o signal.o entry_$(BITS).o
 obj-y			+= traps.o irq.o irq_$(BITS).o dumpstack_$(BITS).o
diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c
index 2a3c9a5..3a9d45a 100644
--- a/arch/x86/kernel/cpu/common.c
+++ b/arch/x86/kernel/cpu/common.c
@@ -40,6 +40,7 @@
 #include <asm/sections.h>
 #include <asm/setup.h>
 #include <asm/hypervisor.h>
+#include <asm/stackprotector.h>
 
 #include "cpu.h"
 
@@ -123,6 +124,7 @@ DEFINE_PER_CPU_PAGE_ALIGNED(struct gdt_page, gdt_page) = { .gdt = {
 
 	[GDT_ENTRY_ESPFIX_SS] = { { { 0x00000000, 0x00c09200 } } },
 	[GDT_ENTRY_PERCPU] = { { { 0x0000ffff, 0x00cf9200 } } },
+	GDT_STACK_CANARY_INIT
 #endif
 } };
 EXPORT_PER_CPU_SYMBOL_GPL(gdt_page);
@@ -305,6 +307,7 @@ void load_percpu_segment(int cpu)
 	loadsegment(gs, 0);
 	wrmsrl(MSR_GS_BASE, (unsigned long)per_cpu(irq_stack_union.gs_base, cpu));
 #endif
+	load_stack_canary_segment();
 }
 
 /* Current gdt points %fs at the "master" per-cpu area: after this,
@@ -984,16 +987,21 @@ unsigned long kernel_eflags;
  */
 DEFINE_PER_CPU(struct orig_ist, orig_ist);
 
-#else
+#else	/* x86_64 */
+
+#ifdef CONFIG_CC_STACKPROTECTOR
+DEFINE_PER_CPU(unsigned long, stack_canary);
+#endif
 
-/* Make sure %fs is initialized properly in idle threads */
+/* Make sure %fs and %gs are initialized properly in idle threads */
 struct pt_regs * __cpuinit idle_regs(struct pt_regs *regs)
 {
 	memset(regs, 0, sizeof(struct pt_regs));
 	regs->fs = __KERNEL_PERCPU;
+	regs->gs = __KERNEL_STACK_CANARY;
 	return regs;
 }
-#endif
+#endif	/* x86_64 */
 
 /*
  * cpu_init() initializes state that is per-CPU. Some data is already
@@ -1155,9 +1163,6 @@ void __cpuinit cpu_init(void)
 	__set_tss_desc(cpu, GDT_ENTRY_DOUBLEFAULT_TSS, &doublefault_tss);
 #endif
 
-	/* Clear %gs. */
-	asm volatile ("mov %0, %%gs" : : "r" (0));
-
 	/* Clear all 6 debug registers: */
 	set_debugreg(0, 0);
 	set_debugreg(0, 1);
diff --git a/arch/x86/kernel/entry_32.S b/arch/x86/kernel/entry_32.S
index d3be889..f7d0837 100644
--- a/arch/x86/kernel/entry_32.S
+++ b/arch/x86/kernel/entry_32.S
@@ -186,7 +186,7 @@
 	/*CFI_REL_OFFSET gs, PT_GS*/
 .endm
 .macro SET_KERNEL_GS reg
-	xorl \reg, \reg
+	movl $(__KERNEL_STACK_CANARY), \reg
 	movl \reg, %gs
 .endm
 
diff --git a/arch/x86/kernel/head_32.S b/arch/x86/kernel/head_32.S
index 0cd61bb..410c9bb 100644
--- a/arch/x86/kernel/head_32.S
+++ b/arch/x86/kernel/head_32.S
@@ -19,6 +19,7 @@
 #include <asm/asm-offsets.h>
 #include <asm/setup.h>
 #include <asm/processor-flags.h>
+#include <asm/percpu.h>
 
 /* Physical address */
 #define pa(X) ((X) - __PAGE_OFFSET)
@@ -437,8 +438,25 @@ is386:	movl $2,%ecx		# set MP
 	movl $(__KERNEL_PERCPU), %eax
 	movl %eax,%fs			# set this cpu's percpu
 
-	xorl %eax,%eax			# Clear GS and LDT
+#ifdef CONFIG_CC_STACKPROTECTOR
+	/*
+	 * The linker can't handle this by relocation.  Manually set
+	 * base address in stack canary segment descriptor.
+	 */
+	cmpb $0,ready
+	jne 1f
+	movl $per_cpu__gdt_page,%eax
+	movl $per_cpu__stack_canary,%ecx
+	movw %cx, 8 * GDT_ENTRY_STACK_CANARY + 2(%eax)
+	shrl $16, %ecx
+	movb %cl, 8 * GDT_ENTRY_STACK_CANARY + 4(%eax)
+	movb %ch, 8 * GDT_ENTRY_STACK_CANARY + 7(%eax)
+1:
+#endif
+	movl $(__KERNEL_STACK_CANARY),%eax
 	movl %eax,%gs
+
+	xorl %eax,%eax			# Clear LDT
 	lldt %ax
 
 	cld			# gcc2 wants the direction flag cleared at all times
diff --git a/arch/x86/kernel/process_32.c b/arch/x86/kernel/process_32.c
index 461d0a7..13d224b 100644
--- a/arch/x86/kernel/process_32.c
+++ b/arch/x86/kernel/process_32.c
@@ -210,6 +210,7 @@ int kernel_thread(int (*fn)(void *), void *arg, unsigned long flags)
 	regs.ds = __USER_DS;
 	regs.es = __USER_DS;
 	regs.fs = __KERNEL_PERCPU;
+	regs.gs = __KERNEL_STACK_CANARY;
 	regs.orig_ax = -1;
 	regs.ip = (unsigned long) kernel_thread_helper;
 	regs.cs = __KERNEL_CS | get_kernel_rpl();
diff --git a/arch/x86/kernel/setup_percpu.c b/arch/x86/kernel/setup_percpu.c
index ef91747..d992e6c 100644
--- a/arch/x86/kernel/setup_percpu.c
+++ b/arch/x86/kernel/setup_percpu.c
@@ -16,6 +16,7 @@
 #include <asm/proto.h>
 #include <asm/cpumask.h>
 #include <asm/cpu.h>
+#include <asm/stackprotector.h>
 
 #ifdef CONFIG_DEBUG_PER_CPU_MAPS
 # define DBG(x...) printk(KERN_DEBUG x)
@@ -95,6 +96,7 @@ void __init setup_per_cpu_areas(void)
 		per_cpu(this_cpu_off, cpu) = per_cpu_offset(cpu);
 		per_cpu(cpu_number, cpu) = cpu;
 		setup_percpu_segment(cpu);
+		setup_stack_canary_segment(cpu);
 		/*
 		 * Copy data used in early init routines from the
 		 * initial arrays to the per cpu data areas.  These
diff --git a/scripts/gcc-x86_32-has-stack-protector.sh b/scripts/gcc-x86_32-has-stack-protector.sh
new file mode 100644
index 0000000..4fdf6ce
--- /dev/null
+++ b/scripts/gcc-x86_32-has-stack-protector.sh
@@ -0,0 +1,8 @@
+#!/bin/sh
+
+echo "int foo(void) { char X[200]; return 3; }" | $1 -S -xc -c -O0 -fstack-protector - -o - 2> /dev/null | grep -q "%gs"
+if [ "$?" -eq "0" ] ; then
+	echo y
+else
+	echo n
+fi
-- 
1.6.0.2

Re: [PATCH 02/11] x86: math_emu info cleanup

[Ingo Molnar]

* Tejun Heo <tj@kernel.org> wrote:

> Impact: cleanup
> 
> * Come on, struct info?  s/struct info/struct math_emu_info/
> 
> * Use struct pt_regs and kernel_vm86_regs instead of defining its own
>   register frame structure.
> 
> Signed-off-by: Tejun Heo <tj@kernel.org>
> ---
>  arch/x86/include/asm/math_emu.h  |   29 +++++------------
>  arch/x86/include/asm/processor.h |    2 +-
>  arch/x86/math-emu/fpu_entry.c    |    2 +-
>  arch/x86/math-emu/fpu_proto.h    |    2 +-
>  arch/x86/math-emu/fpu_system.h   |   14 ++++----
>  arch/x86/math-emu/get_address.c  |   63 ++++++++++++++++++--------------------
>  6 files changed, 48 insertions(+), 64 deletions(-)

Nice - that's a fix for .29 too, right?

	Ingo

Re: [PATCH 02/11] x86: math_emu info cleanup

[Ingo Molnar]

* Ingo Molnar <mingo@elte.hu> wrote:

> 
> * Tejun Heo <tj@kernel.org> wrote:
> 
> > Impact: cleanup
> > 
> > * Come on, struct info?  s/struct info/struct math_emu_info/
> > 
> > * Use struct pt_regs and kernel_vm86_regs instead of defining its own
> >   register frame structure.
> > 
> > Signed-off-by: Tejun Heo <tj@kernel.org>
> > ---
> >  arch/x86/include/asm/math_emu.h  |   29 +++++------------
> >  arch/x86/include/asm/processor.h |    2 +-
> >  arch/x86/math-emu/fpu_entry.c    |    2 +-
> >  arch/x86/math-emu/fpu_proto.h    |    2 +-
> >  arch/x86/math-emu/fpu_system.h   |   14 ++++----
> >  arch/x86/math-emu/get_address.c  |   63 ++++++++++++++++++--------------------
> >  6 files changed, 48 insertions(+), 64 deletions(-)
> 
> Nice - that's a fix for .29 too, right?

this one i mean:

Subject: [PATCH 03/11] x86: fix math_emu register frame access

	Ingo

Re: [PATCH 02/11] x86: math_emu info cleanup

[Tejun Heo]

Ingo Molnar wrote:
> * Ingo Molnar <mingo@elte.hu> wrote:
> 
>> * Tejun Heo <tj@kernel.org> wrote:
>>
>>> Impact: cleanup
>>>
>>> * Come on, struct info?  s/struct info/struct math_emu_info/
>>>
>>> * Use struct pt_regs and kernel_vm86_regs instead of defining its own
>>>   register frame structure.
>>>
>>> Signed-off-by: Tejun Heo <tj@kernel.org>
>>> ---
>>>  arch/x86/include/asm/math_emu.h  |   29 +++++------------
>>>  arch/x86/include/asm/processor.h |    2 +-
>>>  arch/x86/math-emu/fpu_entry.c    |    2 +-
>>>  arch/x86/math-emu/fpu_proto.h    |    2 +-
>>>  arch/x86/math-emu/fpu_system.h   |   14 ++++----
>>>  arch/x86/math-emu/get_address.c  |   63 ++++++++++++++++++--------------------
>>>  6 files changed, 48 insertions(+), 64 deletions(-)
>> Nice - that's a fix for .29 too, right?
> 
> this one i mean:
> 
> Subject: [PATCH 03/11] x86: fix math_emu register frame access

Yeap, 0001-0003 are candidates for .29 inclusion.

Thanks.

-- 
tejun

Re: [PATCHSET x86/master] add stack protector support for x86_32

[Ingo Molnar]

* Tejun Heo <tj@kernel.org> wrote:

> Hello,
> 
> This patchset adds stack protector support for x86_32.  The basics are
> the same with x86_64 but there are some noticeable differences.
> 
> * x86_32 uses %fs for percpu base.  %gs is unused by the kernel and
>   managed lazily.  %gs is used for userland TLS and loading %gs with
>   different value on kernel entry is known to cost quite a bit on some
>   chips.
> 
>   Lazy %gs handling is made optional and disabled if stack protector
>   is enabled.  To do this, entry for %gs is added to pt_regs.  This
>   adds one "pushl $0" to SAVE_ALL in entry_32.S when lazy %gs is on.
>   However, no overhead is added to common exit path and error_code
>   entry path shed a few instructions.  I don't think there will be
>   noticeable overhead but then again it does add an instruction to a
>   very hot path.  Would this be okay?

Yeah, looks good.

> * x86_32 doesn't support direct access to shadow part of %gs and
>   there's no swapgs, so GDT entry should be built for stack canary.
> 
>   GDT entry 28 is used for this.  The boot cpu one is setup from
>   head_32.S.  Others while setting up percpu areas.

Yeah.

> * math_emu register access was completely broken.  Fixed.

=> i'll queue this up for mainline too as this breakage is independent
   of stackprotector.

> * x86_32 exception handlers take register frame verbatim as struct
>   pt_regs.  With -fstack-protector, gcc copies pt_regs into the
>   callee's stack frame to put it after the stack canary.  Of course it
>   doesn't copy back (as the callee owns the argument) and any change
>   made to pt_regs is lost on return.  This is currently worked around
>   by adding -fno-stack-protector to any file containing such
>   functions.  We really need to teach gcc about the calling
>   convention.

Or we could just push in struct pt_regs * ? Even if it's one more
instruction that will avoid trouble not just with the canary but also
with over-eager tail-call optimizations, etc.

> This patchset contains the following eleven patches.

Note, i sorted out the dependencies (it depended on x86/uaccess) and have
put the commits into tip:core/percpu. I might not get around testing it
today and pushing it out into tip:master, but i pushed out the core/percpu
bits, should you queue up further changes.

	Ingo

Re: [PATCHSET x86/master] add stack protector support for x86_32

[Ingo Molnar]

* Ingo Molnar <mingo@elte.hu> wrote:

> > This patchset contains the following eleven patches.
> 
> Note, i sorted out the dependencies (it depended on x86/uaccess) and have put the 
> commits into tip:core/percpu. I might not get around testing it today and pushing 
> it out into tip:master, but i pushed out the core/percpu bits, should you queue up 
> further changes.

Note that i spread the patches the following way: #001-003 are in tip:x86/urgent, 
and tip:core/percpu merges in x86/urgent, x86/uaccess and rc4 - and #004-011 go on 
top of that.

(That way we avoid having to cherry-pick #001-003.)

	Ingo

Re: [PATCHSET x86/master] add stack protector support for x86_32

[Brian Gerst]

On Mon, Feb 9, 2009 at 8:39 AM, Tejun Heo <tj@kernel.org> wrote:
>
> Hello,
>
> This patchset adds stack protector support for x86_32.  The basics are
> the same with x86_64 but there are some noticeable differences.
>
> * x86_32 uses %fs for percpu base.  %gs is unused by the kernel and
>  managed lazily.  %gs is used for userland TLS and loading %gs with
>  different value on kernel entry is known to cost quite a bit on some
>  chips.
>
>  Lazy %gs handling is made optional and disabled if stack protector
>  is enabled.  To do this, entry for %gs is added to pt_regs.  This
>  adds one "pushl $0" to SAVE_ALL in entry_32.S when lazy %gs is on.
>  However, no overhead is added to common exit path and error_code
>  entry path shed a few instructions.  I don't think there will be
>  noticeable overhead but then again it does add an instruction to a
>  very hot path.  Would this be okay?
>
> * x86_32 doesn't support direct access to shadow part of %gs and
>  there's no swapgs, so GDT entry should be built for stack canary.
>
>  GDT entry 28 is used for this.  The boot cpu one is setup from
>  head_32.S.  Others while setting up percpu areas.
>
> * math_emu register access was completely broken.  Fixed.
>
> * x86_32 exception handlers take register frame verbatim as struct
>  pt_regs.  With -fstack-protector, gcc copies pt_regs into the
>  callee's stack frame to put it after the stack canary.  Of course it
>  doesn't copy back (as the callee owns the argument) and any change
>  made to pt_regs is lost on return.  This is currently worked around
>  by adding -fno-stack-protector to any file containing such
>  functions.  We really need to teach gcc about the calling
>  convention.

I had a patch a while back that would convert those function to take a
pointer to pt_regs instead of assuming that the struct was passed by
value.  I'll take a stab at reworking it on top of this series.

--
Brian Gerst

Re: [PATCHSET x86/master] add stack protector support for x86_32

[Ingo Molnar]

[-- Attachment #1: Type: text/plain, Size: 961 bytes --]


* Ingo Molnar <mingo@elte.hu> wrote:

> [...] I might not get around testing it today and pushing it out into tip:master, 
> but i pushed out the core/percpu bits, should you queue up further changes.

ok, activated it for -tip testing, and there's a 64-bit build failure caused by 
it:

arch/x86/kernel/head64.o: In function `x86_64_start_reservations':
head64.c:(.init.text+0x26): undefined reference to `__stack_chk_guard'
head64.c:(.init.text+0xc2): undefined reference to `__stack_chk_guard'
arch/x86/kernel/head64.o: In function `x86_64_start_kernel':
head64.c:(.init.text+0x104): undefined reference to `__stack_chk_guard'
head64.c:(.init.text+0x1cd): undefined reference to `__stack_chk_guard'
arch/x86/kernel/head.o: In function `reserve_ebda_region':
head.c:(.init.text+0xb): undefined reference to `__stack_chk_guard'
arch/x86/kernel/head.o:head.c:(.init.text+0x87): more undefined references to 
`__stack_chk_guard' follow

config attached.

	Ingo

[-- Attachment #2: config --]
[-- Type: text/plain, Size: 65205 bytes --]

#
# Automatically generated make config: don't edit
# Linux kernel version: 2.6.29-rc4
# Mon Feb  9 15:05:56 2009
#
CONFIG_64BIT=y
# CONFIG_X86_32 is not set
CONFIG_X86_64=y
CONFIG_X86=y
CONFIG_ARCH_DEFCONFIG="arch/x86/configs/x86_64_defconfig"
CONFIG_GENERIC_TIME=y
CONFIG_GENERIC_CMOS_UPDATE=y
CONFIG_CLOCKSOURCE_WATCHDOG=y
CONFIG_GENERIC_CLOCKEVENTS=y
CONFIG_GENERIC_CLOCKEVENTS_BROADCAST=y
CONFIG_LOCKDEP_SUPPORT=y
CONFIG_STACKTRACE_SUPPORT=y
CONFIG_HAVE_LATENCYTOP_SUPPORT=y
CONFIG_FAST_CMPXCHG_LOCAL=y
CONFIG_MMU=y
CONFIG_ZONE_DMA=y
CONFIG_GENERIC_ISA_DMA=y
CONFIG_GENERIC_IOMAP=y
CONFIG_GENERIC_HWEIGHT=y
CONFIG_GENERIC_GPIO=y
CONFIG_ARCH_MAY_HAVE_PC_FDC=y
CONFIG_RWSEM_GENERIC_SPINLOCK=y
# CONFIG_RWSEM_XCHGADD_ALGORITHM is not set
CONFIG_ARCH_HAS_CPU_IDLE_WAIT=y
CONFIG_GENERIC_CALIBRATE_DELAY=y
CONFIG_GENERIC_TIME_VSYSCALL=y
CONFIG_ARCH_HAS_CPU_RELAX=y
CONFIG_ARCH_HAS_DEFAULT_IDLE=y
CONFIG_ARCH_HAS_CACHE_LINE_SIZE=y
CONFIG_HAVE_SETUP_PER_CPU_AREA=y
CONFIG_HAVE_CPUMASK_OF_CPU_MAP=y
CONFIG_ARCH_SUSPEND_POSSIBLE=y
CONFIG_ZONE_DMA32=y
CONFIG_ARCH_POPULATES_NODE_MAP=y
CONFIG_AUDIT_ARCH=y
CONFIG_ARCH_SUPPORTS_OPTIMIZED_INLINING=y
CONFIG_GENERIC_HARDIRQS=y
CONFIG_GENERIC_IRQ_PROBE=y
CONFIG_GENERIC_PENDING_IRQ=y
CONFIG_USE_GENERIC_SMP_HELPERS=y
CONFIG_X86_64_SMP=y
CONFIG_X86_HT=y
CONFIG_X86_TRAMPOLINE=y
# CONFIG_KTIME_SCALAR is not set
CONFIG_BOOTPARAM_SUPPORT=y
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"

#
# General setup
#
CONFIG_EXPERIMENTAL=y
# CONFIG_BROKEN_BOOT_ALLOWED4 is not set
# CONFIG_BROKEN_BOOT_EUROPE is not set
# CONFIG_BROKEN_BOOT_TITAN is not set
CONFIG_LOCK_KERNEL=y
CONFIG_INIT_ENV_ARG_LIMIT=32
CONFIG_LOCALVERSION=""
CONFIG_LOCALVERSION_AUTO=y
CONFIG_SWAP=y
# CONFIG_SYSVIPC is not set
CONFIG_POSIX_MQUEUE=y
CONFIG_BSD_PROCESS_ACCT=y
CONFIG_BSD_PROCESS_ACCT_V3=y
CONFIG_TASKSTATS=y
CONFIG_TASK_DELAY_ACCT=y
# CONFIG_TASK_XACCT is not set
CONFIG_AUDIT=y
CONFIG_AUDITSYSCALL=y
CONFIG_AUDIT_TREE=y

#
# RCU Subsystem
#
CONFIG_CLASSIC_RCU=y
# CONFIG_TREE_RCU is not set
# CONFIG_PREEMPT_RCU is not set
# CONFIG_TREE_RCU_TRACE is not set
# CONFIG_PREEMPT_RCU_TRACE is not set
CONFIG_IKCONFIG=m
CONFIG_IKCONFIG_PROC=y
CONFIG_LOG_BUF_SHIFT=21
CONFIG_HAVE_UNSTABLE_SCHED_CLOCK=y
# CONFIG_GROUP_SCHED is not set
CONFIG_BOOTPARAM_MAXCPUS_1=y
# CONFIG_BOOTPARAM_NOSMP is not set
CONFIG_CGROUPS=y
CONFIG_CGROUP_DEBUG=y
CONFIG_CGROUP_NS=y
# CONFIG_CGROUP_FREEZER is not set
# CONFIG_CGROUP_DEVICE is not set
# CONFIG_CPUSETS is not set
CONFIG_CGROUP_CPUACCT=y
# CONFIG_RESOURCE_COUNTERS is not set
CONFIG_SYSFS_DEPRECATED=y
CONFIG_SYSFS_DEPRECATED_V2=y
CONFIG_RELAY=y
CONFIG_NAMESPACES=y
# CONFIG_UTS_NS is not set
CONFIG_USER_NS=y
CONFIG_PID_NS=y
CONFIG_NET_NS=y
CONFIG_BLK_DEV_INITRD=y
CONFIG_INITRAMFS_SOURCE=""
CONFIG_CC_OPTIMIZE_FOR_SIZE=y
CONFIG_SYSCTL=y
CONFIG_EMBEDDED=y
# CONFIG_UID16 is not set
CONFIG_SYSCTL_SYSCALL=y
CONFIG_KALLSYMS=y
CONFIG_KALLSYMS_ALL=y
CONFIG_KALLSYMS_EXTRA_PASS=y
CONFIG_HOTPLUG=y
CONFIG_PRINTK=y
# CONFIG_BUG is not set
CONFIG_ELF_CORE=y
CONFIG_PCSPKR_PLATFORM=y
CONFIG_COMPAT_BRK=y
# CONFIG_BASE_FULL is not set
CONFIG_FUTEX=y
CONFIG_ANON_INODES=y
# CONFIG_EPOLL is not set
CONFIG_SIGNALFD=y
CONFIG_TIMERFD=y
CONFIG_EVENTFD=y
CONFIG_SHMEM=y
CONFIG_AIO=y
CONFIG_HAVE_PERF_COUNTERS=y

#
# Performance Counters
#
CONFIG_PERF_COUNTERS=y
CONFIG_VM_EVENT_COUNTERS=y
CONFIG_PCI_QUIRKS=y
# CONFIG_SLUB_DEBUG is not set
# CONFIG_SLAB is not set
CONFIG_SLUB=y
# CONFIG_SLOB is not set
# CONFIG_PROFILING is not set
CONFIG_TRACEPOINTS=y
# CONFIG_MARKERS is not set
CONFIG_HAVE_OPROFILE=y
CONFIG_KPROBES=y
CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS=y
CONFIG_KRETPROBES=y
CONFIG_HAVE_IOREMAP_PROT=y
CONFIG_HAVE_KPROBES=y
CONFIG_HAVE_KRETPROBES=y
CONFIG_HAVE_ARCH_TRACEHOOK=y
# CONFIG_HAVE_GENERIC_DMA_COHERENT is not set
CONFIG_RT_MUTEXES=y
CONFIG_BASE_SMALL=1
CONFIG_MODULES=y
CONFIG_MODULE_FORCE_LOAD=y
CONFIG_MODULE_UNLOAD=y
# CONFIG_MODULE_FORCE_UNLOAD is not set
CONFIG_MODVERSIONS=y
CONFIG_MODULE_SRCVERSION_ALL=y
CONFIG_STOP_MACHINE=y
CONFIG_BLOCK=y
# CONFIG_BLK_DEV_BSG is not set
# CONFIG_BLK_DEV_INTEGRITY is not set
CONFIG_BLOCK_COMPAT=y

#
# IO Schedulers
#
CONFIG_IOSCHED_NOOP=y
CONFIG_IOSCHED_AS=m
CONFIG_IOSCHED_DEADLINE=y
CONFIG_IOSCHED_CFQ=y
# CONFIG_DEFAULT_AS is not set
# CONFIG_DEFAULT_DEADLINE is not set
CONFIG_DEFAULT_CFQ=y
# CONFIG_DEFAULT_NOOP is not set
CONFIG_DEFAULT_IOSCHED="cfq"
# CONFIG_FREEZER is not set

#
# Processor type and features
#
CONFIG_TICK_ONESHOT=y
# CONFIG_NO_HZ is not set
CONFIG_BOOTPARAM_NO_HZ_OFF=y
CONFIG_HIGH_RES_TIMERS=y
CONFIG_GENERIC_CLOCKEVENTS_BUILD=y
CONFIG_BOOTPARAM_HIGHRES_OFF=y
CONFIG_SMP_SUPPORT=y
# CONFIG_SPARSE_IRQ is not set
# CONFIG_X86_MPPARSE is not set
CONFIG_X86_NON_STANDARD=y
# CONFIG_X86_UV is not set
CONFIG_X86_VSMP=y
CONFIG_SCHED_OMIT_FRAME_POINTER=y
# CONFIG_PARAVIRT_GUEST is not set
CONFIG_PARAVIRT=y
# CONFIG_MEMTEST is not set
# CONFIG_M386 is not set
# CONFIG_M486 is not set
# CONFIG_M586 is not set
# CONFIG_M586TSC is not set
# CONFIG_M586MMX is not set
# CONFIG_M686 is not set
# CONFIG_MPENTIUMII is not set
# CONFIG_MPENTIUMIII is not set
# CONFIG_MPENTIUMM is not set
# CONFIG_MPENTIUM4 is not set
# CONFIG_MK6 is not set
# CONFIG_MK7 is not set
# CONFIG_MK8 is not set
# CONFIG_MCRUSOE is not set
# CONFIG_MEFFICEON is not set
# CONFIG_MWINCHIPC6 is not set
# CONFIG_MWINCHIP3D is not set
# CONFIG_MGEODEGX1 is not set
# CONFIG_MGEODE_LX is not set
# CONFIG_MCYRIXIII is not set
# CONFIG_MVIAC3_2 is not set
# CONFIG_MVIAC7 is not set
# CONFIG_MPSC is not set
# CONFIG_MCORE2 is not set
CONFIG_GENERIC_CPU=y
CONFIG_X86_CPU=y
CONFIG_X86_L1_CACHE_BYTES=64
CONFIG_X86_INTERNODE_CACHE_BYTES=4096
CONFIG_X86_CMPXCHG=y
CONFIG_X86_L1_CACHE_SHIFT=6
CONFIG_X86_WP_WORKS_OK=y
CONFIG_X86_TSC=y
CONFIG_X86_CMPXCHG64=y
CONFIG_X86_CMOV=y
CONFIG_X86_MINIMUM_CPU_FAMILY=64
CONFIG_X86_DEBUGCTLMSR=y
CONFIG_PROCESSOR_SELECT=y
CONFIG_CPU_SUP_INTEL=y
CONFIG_CPU_SUP_AMD=y
# CONFIG_CPU_SUP_CENTAUR_64 is not set
CONFIG_X86_DS=y
CONFIG_X86_PTRACE_BTS=y
CONFIG_HPET_TIMER=y
CONFIG_HPET_EMULATE_RTC=y
CONFIG_DMI=y
CONFIG_GART_IOMMU=y
CONFIG_CALGARY_IOMMU=y
CONFIG_CALGARY_IOMMU_ENABLED_BY_DEFAULT=y
CONFIG_AMD_IOMMU=y
CONFIG_AMD_IOMMU_STATS=y
CONFIG_SWIOTLB=y
CONFIG_IOMMU_HELPER=y
CONFIG_IOMMU_API=y
CONFIG_NR_CPUS=8
# CONFIG_SCHED_SMT is not set
# CONFIG_SCHED_MC is not set
CONFIG_PREEMPT_NONE=y
# CONFIG_PREEMPT_VOLUNTARY is not set
# CONFIG_PREEMPT is not set
CONFIG_X86_LOCAL_APIC=y
CONFIG_X86_IO_APIC=y
CONFIG_X86_REROUTE_FOR_BROKEN_BOOT_IRQS=y
CONFIG_X86_MCE=y
CONFIG_X86_MCE_INTEL=y
CONFIG_X86_MCE_AMD=y
CONFIG_I8K=y
CONFIG_MICROCODE=y
# CONFIG_MICROCODE_INTEL is not set
# CONFIG_MICROCODE_AMD is not set
CONFIG_MICROCODE_OLD_INTERFACE=y
CONFIG_X86_MSR=y
# CONFIG_X86_CPUID is not set
CONFIG_UP_WANTED_1=y
CONFIG_UP_WANTED_2=y
CONFIG_UP_WANTED=y
CONFIG_SMP=y
CONFIG_ARCH_PHYS_ADDR_T_64BIT=y
CONFIG_DIRECT_GBPAGES=y
CONFIG_NUMA=y
# CONFIG_K8_NUMA is not set
CONFIG_X86_64_ACPI_NUMA=y
CONFIG_NODES_SPAN_OTHER_NODES=y
CONFIG_NUMA_EMU=y
CONFIG_NODES_SHIFT=6
CONFIG_ARCH_SPARSEMEM_DEFAULT=y
CONFIG_ARCH_SPARSEMEM_ENABLE=y
CONFIG_ARCH_SELECT_MEMORY_MODEL=y
CONFIG_ARCH_MEMORY_PROBE=y
CONFIG_ILLEGAL_POINTER_VALUE=0xdead000000000000
CONFIG_SELECT_MEMORY_MODEL=y
# CONFIG_FLATMEM_MANUAL is not set
# CONFIG_DISCONTIGMEM_MANUAL is not set
CONFIG_SPARSEMEM_MANUAL=y
CONFIG_SPARSEMEM=y
CONFIG_NEED_MULTIPLE_NODES=y
CONFIG_HAVE_MEMORY_PRESENT=y
CONFIG_SPARSEMEM_EXTREME=y
CONFIG_SPARSEMEM_VMEMMAP_ENABLE=y
# CONFIG_SPARSEMEM_VMEMMAP is not set
CONFIG_MEMORY_HOTPLUG=y
CONFIG_MEMORY_HOTPLUG_SPARSE=y
# CONFIG_MEMORY_HOTREMOVE is not set
CONFIG_PAGEFLAGS_EXTENDED=y
CONFIG_SPLIT_PTLOCK_CPUS=4
CONFIG_MIGRATION=y
CONFIG_PHYS_ADDR_T_64BIT=y
CONFIG_ZONE_DMA_FLAG=1
CONFIG_BOUNCE=y
CONFIG_VIRT_TO_BUS=y
# CONFIG_UNEVICTABLE_LRU is not set
CONFIG_X86_CHECK_BIOS_CORRUPTION=y
CONFIG_X86_BOOTPARAM_MEMORY_CORRUPTION_CHECK=y
CONFIG_X86_RESERVE_LOW_64K=y
# CONFIG_MTRR is not set
CONFIG_EFI=y
CONFIG_SECCOMP=y
CONFIG_CC_STACKPROTECTOR_ALL=y
CONFIG_CC_STACKPROTECTOR=y
# CONFIG_HZ_100 is not set
CONFIG_HZ_250=y
# CONFIG_HZ_300 is not set
# CONFIG_HZ_1000 is not set
CONFIG_HZ=250
CONFIG_SCHED_HRTICK=y
CONFIG_KEXEC=y
CONFIG_CRASH_DUMP=y
CONFIG_PHYSICAL_START=0x200000
CONFIG_RELOCATABLE=y
CONFIG_PHYSICAL_ALIGN=0x200000
CONFIG_HOTPLUG_CPU=y
# CONFIG_COMPAT_VDSO is not set
CONFIG_CMDLINE_BOOL=y
CONFIG_CMDLINE=""
CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y
CONFIG_ARCH_ENABLE_MEMORY_HOTREMOVE=y
CONFIG_HAVE_ARCH_EARLY_PFN_TO_NID=y

#
# Power management and ACPI options
#
CONFIG_PM=y
CONFIG_PM_DEBUG=y
CONFIG_PM_VERBOSE=y
# CONFIG_SUSPEND is not set
CONFIG_ACPI=y
# CONFIG_ACPI_PROCFS is not set
CONFIG_ACPI_PROCFS_POWER=y
CONFIG_ACPI_SYSFS_POWER=y
CONFIG_ACPI_PROC_EVENT=y
CONFIG_ACPI_AC=y
CONFIG_ACPI_BATTERY=m
# CONFIG_ACPI_BUTTON is not set
CONFIG_ACPI_FAN=m
CONFIG_ACPI_DOCK=y
CONFIG_ACPI_PROCESSOR=y
CONFIG_ACPI_HOTPLUG_CPU=y
CONFIG_ACPI_THERMAL=y
CONFIG_ACPI_NUMA=y
# CONFIG_ACPI_CUSTOM_DSDT is not set
CONFIG_ACPI_BLACKLIST_YEAR=0
# CONFIG_ACPI_DEBUG is not set
CONFIG_ACPI_PCI_SLOT=y
CONFIG_ACPI_SYSTEM=y
CONFIG_X86_PM_TIMER=y
CONFIG_ACPI_CONTAINER=y
CONFIG_ACPI_HOTPLUG_MEMORY=m
# CONFIG_ACPI_SBS is not set

#
# CPU Frequency scaling
#
CONFIG_CPU_FREQ=y
CONFIG_CPU_FREQ_TABLE=y
CONFIG_CPU_FREQ_DEBUG=y
CONFIG_CPU_FREQ_STAT=m
CONFIG_CPU_FREQ_STAT_DETAILS=y
CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE=y
# CONFIG_CPU_FREQ_DEFAULT_GOV_POWERSAVE is not set
# CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE is not set
# CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND is not set
# CONFIG_CPU_FREQ_DEFAULT_GOV_CONSERVATIVE is not set
CONFIG_CPU_FREQ_GOV_PERFORMANCE=y
CONFIG_CPU_FREQ_GOV_POWERSAVE=m
CONFIG_CPU_FREQ_GOV_USERSPACE=y
CONFIG_CPU_FREQ_GOV_ONDEMAND=y
CONFIG_CPU_FREQ_GOV_CONSERVATIVE=m

#
# CPUFreq processor drivers
#
# CONFIG_X86_ACPI_CPUFREQ is not set
CONFIG_X86_POWERNOW_K8=y
CONFIG_X86_POWERNOW_K8_ACPI=y
# CONFIG_X86_SPEEDSTEP_CENTRINO is not set
CONFIG_X86_P4_CLOCKMOD=m

#
# shared options
#
CONFIG_X86_SPEEDSTEP_LIB=m
CONFIG_CPU_IDLE=y
CONFIG_CPU_IDLE_GOV_LADDER=y

#
# Memory power savings
#
CONFIG_I7300_IDLE_IOAT_CHANNEL=y
CONFIG_I7300_IDLE=m
# CONFIG_BOOTPARAM_NMI_WATCHDOG_BIT_0 is not set
# CONFIG_BOOTPARAM_NOAPIC is not set
# CONFIG_BOOTPARAM_NOLAPIC_TIMER is not set
CONFIG_BOOTPARAM_LAPIC=y
CONFIG_BOOTPARAM_HPET_DISABLE=y
# CONFIG_BOOTPARAM_IDLE_MWAIT is not set
CONFIG_BOOTPARAM_IDLE_POLL=y
CONFIG_BOOTPARAM_HIGHMEM_512M=y
CONFIG_BOOTPARAM_NOPAT=y
CONFIG_BOOTPARAM_NOTSC=y
CONFIG_BOOTPARAM_PCI_NOMSI=y

#
# Bus options (PCI etc.)
#
CONFIG_PCI=y
CONFIG_PCI_DIRECT=y
# CONFIG_PCI_MMCONFIG is not set
CONFIG_PCI_DOMAINS=y
CONFIG_DMAR=y
CONFIG_DMAR_DEFAULT_ON=y
CONFIG_DMAR_GFX_WA=y
CONFIG_DMAR_FLOPPY_WA=y
CONFIG_INTR_REMAP=y
CONFIG_PCIEPORTBUS=y
CONFIG_HOTPLUG_PCI_PCIE=m
# CONFIG_PCIEAER is not set
# CONFIG_PCIEASPM is not set
CONFIG_ARCH_SUPPORTS_MSI=y
CONFIG_PCI_MSI=y
# CONFIG_PCI_LEGACY is not set
# CONFIG_PCI_STUB is not set
CONFIG_HT_IRQ=y
CONFIG_ISA_DMA_API=y
CONFIG_K8_NB=y
# CONFIG_PCCARD is not set
CONFIG_HOTPLUG_PCI=m
# CONFIG_HOTPLUG_PCI_FAKE is not set
CONFIG_HOTPLUG_PCI_ACPI=m
CONFIG_HOTPLUG_PCI_ACPI_IBM=m
CONFIG_HOTPLUG_PCI_CPCI=y
CONFIG_HOTPLUG_PCI_CPCI_ZT5550=m
# CONFIG_HOTPLUG_PCI_CPCI_GENERIC is not set
CONFIG_HOTPLUG_PCI_SHPC=m

#
# Executable file formats / Emulations
#
CONFIG_BINFMT_ELF=y
CONFIG_COMPAT_BINFMT_ELF=y
CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS=y
# CONFIG_HAVE_AOUT is not set
CONFIG_BINFMT_MISC=m
CONFIG_IA32_EMULATION=y
CONFIG_IA32_AOUT=m
CONFIG_COMPAT=y
CONFIG_COMPAT_FOR_U64_ALIGNMENT=y
CONFIG_NET=y

#
# Networking options
#
CONFIG_COMPAT_NET_DEV_OPS=y
CONFIG_PACKET=y
# CONFIG_PACKET_MMAP is not set
CONFIG_UNIX=y
CONFIG_XFRM=y
CONFIG_XFRM_USER=y
CONFIG_XFRM_SUB_POLICY=y
CONFIG_XFRM_MIGRATE=y
CONFIG_XFRM_STATISTICS=y
CONFIG_XFRM_IPCOMP=y
# CONFIG_NET_KEY is not set
CONFIG_INET=y
CONFIG_IP_MULTICAST=y
# CONFIG_IP_ADVANCED_ROUTER is not set
CONFIG_IP_FIB_HASH=y
CONFIG_IP_PNP=y
CONFIG_IP_PNP_DHCP=y
CONFIG_IP_PNP_BOOTP=y
# CONFIG_IP_PNP_RARP is not set
CONFIG_NET_IPIP=y
CONFIG_NET_IPGRE=m
CONFIG_NET_IPGRE_BROADCAST=y
CONFIG_IP_MROUTE=y
CONFIG_IP_PIMSM_V1=y
# CONFIG_IP_PIMSM_V2 is not set
CONFIG_ARPD=y
CONFIG_SYN_COOKIES=y
CONFIG_INET_AH=m
CONFIG_INET_ESP=m
# CONFIG_INET_IPCOMP is not set
# CONFIG_INET_XFRM_TUNNEL is not set
CONFIG_INET_TUNNEL=y
# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET_XFRM_MODE_TUNNEL is not set
CONFIG_INET_XFRM_MODE_BEET=m
CONFIG_INET_LRO=y
CONFIG_INET_DIAG=y
CONFIG_INET_TCP_DIAG=y
CONFIG_TCP_CONG_ADVANCED=y
CONFIG_TCP_CONG_BIC=y
CONFIG_TCP_CONG_CUBIC=y
CONFIG_TCP_CONG_WESTWOOD=y
CONFIG_TCP_CONG_HTCP=y
CONFIG_TCP_CONG_HSTCP=y
CONFIG_TCP_CONG_HYBLA=m
CONFIG_TCP_CONG_VEGAS=y
CONFIG_TCP_CONG_SCALABLE=y
CONFIG_TCP_CONG_LP=y
CONFIG_TCP_CONG_VENO=m
CONFIG_TCP_CONG_YEAH=m
# CONFIG_TCP_CONG_ILLINOIS is not set
# CONFIG_DEFAULT_BIC is not set
CONFIG_DEFAULT_CUBIC=y
# CONFIG_DEFAULT_HTCP is not set
# CONFIG_DEFAULT_VEGAS is not set
# CONFIG_DEFAULT_WESTWOOD is not set
# CONFIG_DEFAULT_RENO is not set
CONFIG_DEFAULT_TCP_CONG="cubic"
CONFIG_TCP_MD5SIG=y
CONFIG_IPV6=y
CONFIG_IPV6_PRIVACY=y
CONFIG_IPV6_ROUTER_PREF=y
CONFIG_IPV6_ROUTE_INFO=y
CONFIG_IPV6_OPTIMISTIC_DAD=y
CONFIG_INET6_AH=y
CONFIG_INET6_ESP=y
CONFIG_INET6_IPCOMP=y
CONFIG_IPV6_MIP6=m
CONFIG_INET6_XFRM_TUNNEL=y
CONFIG_INET6_TUNNEL=y
CONFIG_INET6_XFRM_MODE_TRANSPORT=m
CONFIG_INET6_XFRM_MODE_TUNNEL=y
CONFIG_INET6_XFRM_MODE_BEET=m
# CONFIG_INET6_XFRM_MODE_ROUTEOPTIMIZATION is not set
# CONFIG_IPV6_SIT is not set
CONFIG_IPV6_TUNNEL=m
CONFIG_IPV6_MULTIPLE_TABLES=y
CONFIG_IPV6_SUBTREES=y
# CONFIG_IPV6_MROUTE is not set
CONFIG_NETLABEL=y
CONFIG_NETWORK_SECMARK=y
CONFIG_NETFILTER=y
# CONFIG_NETFILTER_DEBUG is not set
CONFIG_NETFILTER_ADVANCED=y
CONFIG_BRIDGE_NETFILTER=y

#
# Core Netfilter Configuration
#
CONFIG_NETFILTER_NETLINK=y
CONFIG_NETFILTER_NETLINK_QUEUE=m
CONFIG_NETFILTER_NETLINK_LOG=m
CONFIG_NF_CONNTRACK=y
CONFIG_NF_CT_ACCT=y
CONFIG_NF_CONNTRACK_MARK=y
# CONFIG_NF_CONNTRACK_SECMARK is not set
CONFIG_NF_CONNTRACK_EVENTS=y
# CONFIG_NF_CT_PROTO_DCCP is not set
CONFIG_NF_CT_PROTO_GRE=m
# CONFIG_NF_CT_PROTO_SCTP is not set
# CONFIG_NF_CT_PROTO_UDPLITE is not set
CONFIG_NF_CONNTRACK_AMANDA=m
CONFIG_NF_CONNTRACK_FTP=m
# CONFIG_NF_CONNTRACK_H323 is not set
# CONFIG_NF_CONNTRACK_IRC is not set
# CONFIG_NF_CONNTRACK_NETBIOS_NS is not set
CONFIG_NF_CONNTRACK_PPTP=m
# CONFIG_NF_CONNTRACK_SANE is not set
CONFIG_NF_CONNTRACK_SIP=y
CONFIG_NF_CONNTRACK_TFTP=m
CONFIG_NF_CT_NETLINK=y
CONFIG_NETFILTER_TPROXY=m
CONFIG_NETFILTER_XTABLES=y
CONFIG_NETFILTER_XT_TARGET_CLASSIFY=m
# CONFIG_NETFILTER_XT_TARGET_CONNMARK is not set
# CONFIG_NETFILTER_XT_TARGET_DSCP is not set
# CONFIG_NETFILTER_XT_TARGET_MARK is not set
CONFIG_NETFILTER_XT_TARGET_NFLOG=m
# CONFIG_NETFILTER_XT_TARGET_NFQUEUE is not set
CONFIG_NETFILTER_XT_TARGET_NOTRACK=m
CONFIG_NETFILTER_XT_TARGET_RATEEST=m
# CONFIG_NETFILTER_XT_TARGET_TPROXY is not set
CONFIG_NETFILTER_XT_TARGET_TRACE=y
CONFIG_NETFILTER_XT_TARGET_SECMARK=y
CONFIG_NETFILTER_XT_TARGET_TCPMSS=m
# CONFIG_NETFILTER_XT_TARGET_TCPOPTSTRIP is not set
CONFIG_NETFILTER_XT_MATCH_COMMENT=m
# CONFIG_NETFILTER_XT_MATCH_CONNBYTES is not set
# CONFIG_NETFILTER_XT_MATCH_CONNLIMIT is not set
CONFIG_NETFILTER_XT_MATCH_CONNMARK=y
CONFIG_NETFILTER_XT_MATCH_CONNTRACK=y
# CONFIG_NETFILTER_XT_MATCH_DCCP is not set
CONFIG_NETFILTER_XT_MATCH_DSCP=m
CONFIG_NETFILTER_XT_MATCH_ESP=m
# CONFIG_NETFILTER_XT_MATCH_HASHLIMIT is not set
# CONFIG_NETFILTER_XT_MATCH_HELPER is not set
CONFIG_NETFILTER_XT_MATCH_IPRANGE=y
CONFIG_NETFILTER_XT_MATCH_LENGTH=y
CONFIG_NETFILTER_XT_MATCH_LIMIT=m
CONFIG_NETFILTER_XT_MATCH_MAC=m
CONFIG_NETFILTER_XT_MATCH_MARK=m
CONFIG_NETFILTER_XT_MATCH_MULTIPORT=y
CONFIG_NETFILTER_XT_MATCH_OWNER=y
# CONFIG_NETFILTER_XT_MATCH_POLICY is not set
CONFIG_NETFILTER_XT_MATCH_PHYSDEV=m
# CONFIG_NETFILTER_XT_MATCH_PKTTYPE is not set
# CONFIG_NETFILTER_XT_MATCH_QUOTA is not set
# CONFIG_NETFILTER_XT_MATCH_RATEEST is not set
# CONFIG_NETFILTER_XT_MATCH_REALM is not set
CONFIG_NETFILTER_XT_MATCH_RECENT=y
# CONFIG_NETFILTER_XT_MATCH_RECENT_PROC_COMPAT is not set
CONFIG_NETFILTER_XT_MATCH_SCTP=m
CONFIG_NETFILTER_XT_MATCH_SOCKET=m
CONFIG_NETFILTER_XT_MATCH_STATE=y
CONFIG_NETFILTER_XT_MATCH_STATISTIC=y
CONFIG_NETFILTER_XT_MATCH_STRING=y
CONFIG_NETFILTER_XT_MATCH_TCPMSS=m
# CONFIG_NETFILTER_XT_MATCH_TIME is not set
CONFIG_NETFILTER_XT_MATCH_U32=y
# CONFIG_IP_VS is not set

#
# IP: Netfilter Configuration
#
CONFIG_NF_DEFRAG_IPV4=m
CONFIG_NF_CONNTRACK_IPV4=m
CONFIG_NF_CONNTRACK_PROC_COMPAT=y
# CONFIG_IP_NF_QUEUE is not set
CONFIG_IP_NF_IPTABLES=y
# CONFIG_IP_NF_MATCH_ADDRTYPE is not set
CONFIG_IP_NF_MATCH_AH=m
CONFIG_IP_NF_MATCH_ECN=m
# CONFIG_IP_NF_MATCH_TTL is not set
CONFIG_IP_NF_FILTER=y
CONFIG_IP_NF_TARGET_REJECT=m
CONFIG_IP_NF_TARGET_LOG=y
CONFIG_IP_NF_TARGET_ULOG=m
CONFIG_NF_NAT=m
CONFIG_NF_NAT_NEEDED=y
CONFIG_IP_NF_TARGET_MASQUERADE=m
CONFIG_IP_NF_TARGET_NETMAP=m
CONFIG_IP_NF_TARGET_REDIRECT=m
CONFIG_NF_NAT_SNMP_BASIC=m
CONFIG_NF_NAT_PROTO_GRE=m
CONFIG_NF_NAT_FTP=m
# CONFIG_NF_NAT_IRC is not set
CONFIG_NF_NAT_TFTP=m
CONFIG_NF_NAT_AMANDA=m
CONFIG_NF_NAT_PPTP=m
# CONFIG_NF_NAT_H323 is not set
CONFIG_NF_NAT_SIP=m
CONFIG_IP_NF_MANGLE=m
# CONFIG_IP_NF_TARGET_CLUSTERIP is not set
CONFIG_IP_NF_TARGET_ECN=m
# CONFIG_IP_NF_TARGET_TTL is not set
CONFIG_IP_NF_RAW=y
CONFIG_IP_NF_SECURITY=m
# CONFIG_IP_NF_ARPTABLES is not set

#
# IPv6: Netfilter Configuration
#
CONFIG_NF_CONNTRACK_IPV6=m
CONFIG_IP6_NF_QUEUE=m
CONFIG_IP6_NF_IPTABLES=m
# CONFIG_IP6_NF_MATCH_AH is not set
CONFIG_IP6_NF_MATCH_EUI64=m
CONFIG_IP6_NF_MATCH_FRAG=m
CONFIG_IP6_NF_MATCH_OPTS=m
CONFIG_IP6_NF_MATCH_HL=m
CONFIG_IP6_NF_MATCH_IPV6HEADER=m
# CONFIG_IP6_NF_MATCH_MH is not set
# CONFIG_IP6_NF_MATCH_RT is not set
CONFIG_IP6_NF_TARGET_LOG=m
CONFIG_IP6_NF_FILTER=m
CONFIG_IP6_NF_TARGET_REJECT=m
# CONFIG_IP6_NF_MANGLE is not set
CONFIG_IP6_NF_RAW=m
# CONFIG_IP6_NF_SECURITY is not set

#
# DECnet: Netfilter Configuration
#
CONFIG_DECNET_NF_GRABULATOR=y
# CONFIG_BRIDGE_NF_EBTABLES is not set
CONFIG_IP_DCCP=y
CONFIG_INET_DCCP_DIAG=y

#
# DCCP CCIDs Configuration (EXPERIMENTAL)
#
# CONFIG_IP_DCCP_CCID2_DEBUG is not set
# CONFIG_IP_DCCP_CCID3 is not set
CONFIG_IP_SCTP=y
# CONFIG_SCTP_DBG_MSG is not set
CONFIG_SCTP_DBG_OBJCNT=y
# CONFIG_SCTP_HMAC_NONE is not set
# CONFIG_SCTP_HMAC_SHA1 is not set
CONFIG_SCTP_HMAC_MD5=y
CONFIG_TIPC=y
CONFIG_TIPC_ADVANCED=y
CONFIG_TIPC_ZONES=3
CONFIG_TIPC_CLUSTERS=1
CONFIG_TIPC_NODES=255
CONFIG_TIPC_SLAVE_NODES=0
CONFIG_TIPC_PORTS=8191
CONFIG_TIPC_LOG=0
CONFIG_TIPC_DEBUG=y
CONFIG_ATM=y
CONFIG_ATM_CLIP=y
# CONFIG_ATM_CLIP_NO_ICMP is not set
CONFIG_ATM_LANE=y
# CONFIG_ATM_MPOA is not set
# CONFIG_ATM_BR2684 is not set
CONFIG_STP=m
CONFIG_BRIDGE=m
CONFIG_NET_DSA=y
# CONFIG_NET_DSA_TAG_DSA is not set
# CONFIG_NET_DSA_TAG_EDSA is not set
CONFIG_NET_DSA_TAG_TRAILER=y
# CONFIG_NET_DSA_MV88E6XXX is not set
CONFIG_NET_DSA_MV88E6060=y
# CONFIG_NET_DSA_MV88E6XXX_NEED_PPU is not set
# CONFIG_NET_DSA_MV88E6131 is not set
# CONFIG_NET_DSA_MV88E6123_61_65 is not set
CONFIG_VLAN_8021Q=m
# CONFIG_VLAN_8021Q_GVRP is not set
CONFIG_DECNET=y
CONFIG_DECNET_ROUTER=y
CONFIG_LLC=y
CONFIG_LLC2=y
CONFIG_IPX=y
CONFIG_IPX_INTERN=y
CONFIG_ATALK=y
# CONFIG_DEV_APPLETALK is not set
CONFIG_X25=y
CONFIG_LAPB=m
# CONFIG_ECONET is not set
# CONFIG_WAN_ROUTER is not set
CONFIG_NET_SCHED=y

#
# Queueing/Scheduling
#
CONFIG_NET_SCH_CBQ=y
# CONFIG_NET_SCH_HTB is not set
CONFIG_NET_SCH_HFSC=m
CONFIG_NET_SCH_ATM=m
# CONFIG_NET_SCH_PRIO is not set
CONFIG_NET_SCH_MULTIQ=m
# CONFIG_NET_SCH_RED is not set
CONFIG_NET_SCH_SFQ=m
CONFIG_NET_SCH_TEQL=y
CONFIG_NET_SCH_TBF=y
CONFIG_NET_SCH_GRED=m
CONFIG_NET_SCH_DSMARK=y
CONFIG_NET_SCH_NETEM=y
CONFIG_NET_SCH_DRR=y
CONFIG_NET_SCH_INGRESS=m

#
# Classification
#
CONFIG_NET_CLS=y
# CONFIG_NET_CLS_BASIC is not set
CONFIG_NET_CLS_TCINDEX=y
CONFIG_NET_CLS_ROUTE4=y
CONFIG_NET_CLS_ROUTE=y
# CONFIG_NET_CLS_FW is not set
CONFIG_NET_CLS_U32=m
CONFIG_CLS_U32_PERF=y
CONFIG_CLS_U32_MARK=y
CONFIG_NET_CLS_RSVP=m
# CONFIG_NET_CLS_RSVP6 is not set
CONFIG_NET_CLS_FLOW=y
# CONFIG_NET_CLS_CGROUP is not set
# CONFIG_NET_EMATCH is not set
CONFIG_NET_CLS_ACT=y
CONFIG_NET_ACT_POLICE=y
CONFIG_NET_ACT_GACT=m
# CONFIG_GACT_PROB is not set
# CONFIG_NET_ACT_MIRRED is not set
# CONFIG_NET_ACT_IPT is not set
CONFIG_NET_ACT_NAT=m
# CONFIG_NET_ACT_PEDIT is not set
CONFIG_NET_ACT_SIMP=y
CONFIG_NET_ACT_SKBEDIT=m
CONFIG_NET_CLS_IND=y
CONFIG_NET_SCH_FIFO=y
CONFIG_DCB=y

#
# Network testing
#
CONFIG_NET_PKTGEN=m
CONFIG_NET_TCPPROBE=y
# CONFIG_HAMRADIO is not set
CONFIG_CAN=m
CONFIG_CAN_RAW=m
# CONFIG_CAN_BCM is not set

#
# CAN Device Drivers
#
# CONFIG_CAN_VCAN is not set
CONFIG_CAN_DEBUG_DEVICES=y
CONFIG_IRDA=m

#
# IrDA protocols
#
# CONFIG_IRLAN is not set
CONFIG_IRCOMM=m
CONFIG_IRDA_ULTRA=y

#
# IrDA options
#
# CONFIG_IRDA_CACHE_LAST_LSAP is not set
# CONFIG_IRDA_FAST_RR is not set
# CONFIG_IRDA_DEBUG is not set

#
# Infrared-port device drivers
#

#
# SIR device drivers
#
CONFIG_IRTTY_SIR=m

#
# Dongle support
#
CONFIG_DONGLE=y
CONFIG_ESI_DONGLE=m
# CONFIG_ACTISYS_DONGLE is not set
# CONFIG_TEKRAM_DONGLE is not set
CONFIG_TOIM3232_DONGLE=m
# CONFIG_LITELINK_DONGLE is not set
CONFIG_MA600_DONGLE=m
# CONFIG_GIRBIL_DONGLE is not set
CONFIG_MCP2120_DONGLE=m
# CONFIG_OLD_BELKIN_DONGLE is not set
# CONFIG_ACT200L_DONGLE is not set
# CONFIG_KINGSUN_DONGLE is not set
# CONFIG_KSDAZZLE_DONGLE is not set
# CONFIG_KS959_DONGLE is not set

#
# FIR device drivers
#
CONFIG_USB_IRDA=m
CONFIG_SIGMATEL_FIR=m
CONFIG_NSC_FIR=m
CONFIG_WINBOND_FIR=m
CONFIG_SMC_IRCC_FIR=m
CONFIG_ALI_FIR=m
# CONFIG_VLSI_FIR is not set
# CONFIG_VIA_FIR is not set
CONFIG_MCS_FIR=m
CONFIG_BT=y
# CONFIG_BT_L2CAP is not set
# CONFIG_BT_SCO is not set

#
# Bluetooth device drivers
#
# CONFIG_BT_HCIBTUSB is not set
CONFIG_BT_HCIUART=y
CONFIG_BT_HCIUART_H4=y
# CONFIG_BT_HCIUART_BCSP is not set
CONFIG_BT_HCIUART_LL=y
CONFIG_BT_HCIBCM203X=m
# CONFIG_BT_HCIBPA10X is not set
CONFIG_BT_HCIBFUSB=m
CONFIG_BT_HCIVHCI=m
CONFIG_AF_RXRPC=m
CONFIG_AF_RXRPC_DEBUG=y
CONFIG_RXKAD=m
CONFIG_PHONET=m
CONFIG_FIB_RULES=y
CONFIG_WIRELESS=y
CONFIG_CFG80211=y
CONFIG_CFG80211_REG_DEBUG=y
# CONFIG_NL80211 is not set
CONFIG_WIRELESS_OLD_REGULATORY=y
CONFIG_WIRELESS_EXT=y
CONFIG_WIRELESS_EXT_SYSFS=y
CONFIG_LIB80211=m
CONFIG_MAC80211=y

#
# Rate control algorithm selection
#
# CONFIG_MAC80211_RC_PID is not set
CONFIG_MAC80211_RC_MINSTREL=y
# CONFIG_MAC80211_RC_DEFAULT_PID is not set
CONFIG_MAC80211_RC_DEFAULT_MINSTREL=y
CONFIG_MAC80211_RC_DEFAULT="minstrel"
CONFIG_MAC80211_MESH=y
CONFIG_MAC80211_LEDS=y
CONFIG_MAC80211_DEBUGFS=y
# CONFIG_MAC80211_DEBUG_MENU is not set
# CONFIG_WIMAX is not set
CONFIG_RFKILL=y
CONFIG_RFKILL_INPUT=m
CONFIG_RFKILL_LEDS=y

#
# Device Drivers
#

#
# Generic Driver Options
#
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
CONFIG_STANDALONE=y
CONFIG_PREVENT_FIRMWARE_BUILD=y
CONFIG_FW_LOADER=y
CONFIG_FIRMWARE_IN_KERNEL=y
CONFIG_EXTRA_FIRMWARE=""
# CONFIG_SYS_HYPERVISOR is not set
CONFIG_CONNECTOR=y
CONFIG_PROC_EVENTS=y
CONFIG_PARPORT=y
CONFIG_PARPORT_PC=m
CONFIG_PARPORT_PC_FIFO=y
CONFIG_PARPORT_PC_SUPERIO=y
# CONFIG_PARPORT_GSC is not set
CONFIG_PARPORT_AX88796=y
# CONFIG_PARPORT_1284 is not set
CONFIG_PARPORT_NOT_PC=y
CONFIG_PNP=y
# CONFIG_PNP_DEBUG_MESSAGES is not set

#
# Protocols
#
CONFIG_PNPACPI=y
CONFIG_BLK_DEV=y
# CONFIG_BLK_DEV_FD is not set
CONFIG_BLK_CPQ_DA=y
CONFIG_BLK_CPQ_CISS_DA=m
# CONFIG_CISS_SCSI_TAPE is not set
# CONFIG_BLK_DEV_DAC960 is not set
CONFIG_BLK_DEV_UMEM=m
# CONFIG_BLK_DEV_COW_COMMON is not set
# CONFIG_BLK_DEV_LOOP is not set
CONFIG_BLK_DEV_NBD=y
CONFIG_BLK_DEV_SX8=y
CONFIG_BLK_DEV_UB=y
CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_RAM_COUNT=16
CONFIG_BLK_DEV_RAM_SIZE=4096
# CONFIG_BLK_DEV_XIP is not set
CONFIG_CDROM_PKTCDVD=y
CONFIG_CDROM_PKTCDVD_BUFFERS=8
CONFIG_CDROM_PKTCDVD_WCACHE=y
# CONFIG_ATA_OVER_ETH is not set
# CONFIG_BLK_DEV_HD is not set
CONFIG_MISC_DEVICES=y
# CONFIG_IBM_ASM is not set
# CONFIG_PHANTOM is not set
# CONFIG_SGI_IOC4 is not set
CONFIG_TIFM_CORE=m
CONFIG_TIFM_7XX1=m
CONFIG_ICS932S401=m
# CONFIG_ENCLOSURE_SERVICES is not set
# CONFIG_HP_ILO is not set
CONFIG_C2PORT=y
CONFIG_C2PORT_DURAMAR_2150=y

#
# EEPROM support
#
CONFIG_EEPROM_AT24=y
# CONFIG_EEPROM_AT25 is not set
# CONFIG_EEPROM_LEGACY is not set
# CONFIG_EEPROM_93CX6 is not set
CONFIG_HAVE_IDE=y

#
# SCSI device support
#
CONFIG_RAID_ATTRS=m
CONFIG_SCSI=y
CONFIG_SCSI_DMA=y
CONFIG_SCSI_TGT=m
CONFIG_SCSI_NETLINK=y
CONFIG_SCSI_PROC_FS=y

#
# SCSI support type (disk, tape, CD-ROM)
#
CONFIG_BLK_DEV_SD=y
# CONFIG_CHR_DEV_ST is not set
CONFIG_CHR_DEV_OSST=y
CONFIG_BLK_DEV_SR=m
CONFIG_BLK_DEV_SR_VENDOR=y
CONFIG_CHR_DEV_SG=y
CONFIG_CHR_DEV_SCH=y

#
# Some SCSI devices (e.g. CD jukebox) support multiple LUNs
#
# CONFIG_SCSI_MULTI_LUN is not set
# CONFIG_SCSI_CONSTANTS is not set
# CONFIG_SCSI_LOGGING is not set
# CONFIG_SCSI_SCAN_ASYNC is not set
CONFIG_SCSI_WAIT_SCAN=m

#
# SCSI Transports
#
CONFIG_SCSI_SPI_ATTRS=y
CONFIG_SCSI_FC_ATTRS=m
# CONFIG_SCSI_FC_TGT_ATTRS is not set
CONFIG_SCSI_ISCSI_ATTRS=m
CONFIG_SCSI_SAS_ATTRS=y
# CONFIG_SCSI_SRP_ATTRS is not set
CONFIG_SCSI_LOWLEVEL=y
# CONFIG_ISCSI_TCP is not set
CONFIG_SCSI_CXGB3_ISCSI=m
# CONFIG_BLK_DEV_3W_XXXX_RAID is not set
CONFIG_SCSI_3W_9XXX=m
CONFIG_SCSI_ACARD=y
CONFIG_SCSI_AACRAID=m
CONFIG_SCSI_AIC7XXX=y
CONFIG_AIC7XXX_CMDS_PER_DEVICE=32
CONFIG_AIC7XXX_RESET_DELAY_MS=5000
CONFIG_AIC7XXX_DEBUG_ENABLE=y
CONFIG_AIC7XXX_DEBUG_MASK=0
# CONFIG_AIC7XXX_REG_PRETTY_PRINT is not set
CONFIG_SCSI_AIC7XXX_OLD=y
# CONFIG_SCSI_AIC79XX is not set
CONFIG_SCSI_DPT_I2O=y
CONFIG_SCSI_ADVANSYS=m
CONFIG_SCSI_ARCMSR=y
CONFIG_MEGARAID_NEWGEN=y
CONFIG_MEGARAID_MM=y
CONFIG_MEGARAID_MAILBOX=y
CONFIG_MEGARAID_LEGACY=y
CONFIG_MEGARAID_SAS=y
CONFIG_SCSI_HPTIOP=m
# CONFIG_SCSI_BUSLOGIC is not set
CONFIG_LIBFC=m
# CONFIG_FCOE is not set
CONFIG_SCSI_DMX3191D=y
CONFIG_SCSI_EATA=m
CONFIG_SCSI_EATA_TAGGED_QUEUE=y
CONFIG_SCSI_EATA_LINKED_COMMANDS=y
CONFIG_SCSI_EATA_MAX_TAGS=16
# CONFIG_SCSI_FUTURE_DOMAIN is not set
CONFIG_SCSI_GDTH=m
CONFIG_SCSI_IPS=y
CONFIG_SCSI_INITIO=y
# CONFIG_SCSI_INIA100 is not set
CONFIG_SCSI_PPA=m
CONFIG_SCSI_IMM=m
CONFIG_SCSI_IZIP_EPP16=y
# CONFIG_SCSI_IZIP_SLOW_CTR is not set
CONFIG_SCSI_STEX=y
CONFIG_SCSI_SYM53C8XX_2=y
CONFIG_SCSI_SYM53C8XX_DMA_ADDRESSING_MODE=1
CONFIG_SCSI_SYM53C8XX_DEFAULT_TAGS=16
CONFIG_SCSI_SYM53C8XX_MAX_TAGS=64
CONFIG_SCSI_SYM53C8XX_MMIO=y
CONFIG_SCSI_IPR=y
# CONFIG_SCSI_IPR_TRACE is not set
CONFIG_SCSI_IPR_DUMP=y
CONFIG_SCSI_QLOGIC_1280=m
# CONFIG_SCSI_QLA_FC is not set
CONFIG_SCSI_QLA_ISCSI=m
# CONFIG_SCSI_LPFC is not set
# CONFIG_SCSI_DC395x is not set
# CONFIG_SCSI_DC390T is not set
CONFIG_SCSI_SRP=m
# CONFIG_SCSI_DH is not set
CONFIG_ATA=y
# CONFIG_ATA_NONSTANDARD is not set
# CONFIG_ATA_ACPI is not set
CONFIG_SATA_PMP=y
CONFIG_SATA_AHCI=y
# CONFIG_SATA_SIL24 is not set
CONFIG_ATA_SFF=y
CONFIG_SATA_SVW=y
CONFIG_ATA_PIIX=y
CONFIG_SATA_MV=m
CONFIG_SATA_NV=y
# CONFIG_PDC_ADMA is not set
CONFIG_SATA_QSTOR=y
# CONFIG_SATA_PROMISE is not set
CONFIG_SATA_SX4=y
CONFIG_SATA_SIL=m
CONFIG_SATA_SIS=m
# CONFIG_SATA_ULI is not set
CONFIG_SATA_VIA=m
CONFIG_SATA_VITESSE=m
CONFIG_SATA_INIC162X=m
CONFIG_PATA_ALI=y
CONFIG_PATA_AMD=y
# CONFIG_PATA_ARTOP is not set
# CONFIG_PATA_ATIIXP is not set
# CONFIG_PATA_CMD640_PCI is not set
CONFIG_PATA_CMD64X=m
CONFIG_PATA_CS5520=m
CONFIG_PATA_CS5530=y
CONFIG_PATA_CYPRESS=y
CONFIG_PATA_EFAR=y
# CONFIG_ATA_GENERIC is not set
CONFIG_PATA_HPT366=m
CONFIG_PATA_HPT37X=y
# CONFIG_PATA_HPT3X2N is not set
CONFIG_PATA_HPT3X3=m
CONFIG_PATA_HPT3X3_DMA=y
CONFIG_PATA_IT821X=m
CONFIG_PATA_IT8213=y
CONFIG_PATA_JMICRON=m
CONFIG_PATA_TRIFLEX=m
# CONFIG_PATA_MARVELL is not set
# CONFIG_PATA_MPIIX is not set
CONFIG_PATA_OLDPIIX=y
CONFIG_PATA_NETCELL=m
CONFIG_PATA_NINJA32=m
CONFIG_PATA_NS87410=y
CONFIG_PATA_NS87415=y
# CONFIG_PATA_OPTI is not set
# CONFIG_PATA_OPTIDMA is not set
# CONFIG_PATA_PDC_OLD is not set
CONFIG_PATA_RADISYS=m
# CONFIG_PATA_RZ1000 is not set
CONFIG_PATA_SC1200=y
CONFIG_PATA_SERVERWORKS=m
# CONFIG_PATA_PDC2027X is not set
CONFIG_PATA_SIL680=y
CONFIG_PATA_SIS=y
CONFIG_PATA_VIA=y
CONFIG_PATA_WINBOND=m
# CONFIG_PATA_PLATFORM is not set
CONFIG_PATA_SCH=y
CONFIG_MD=y
# CONFIG_BLK_DEV_MD is not set
# CONFIG_BLK_DEV_DM is not set
CONFIG_FUSION=y
# CONFIG_FUSION_SPI is not set
CONFIG_FUSION_FC=m
CONFIG_FUSION_SAS=y
CONFIG_FUSION_MAX_SGE=128
CONFIG_FUSION_CTL=y
# CONFIG_FUSION_LAN is not set
CONFIG_FUSION_LOGGING=y

#
# IEEE 1394 (FireWire) support
#

#
# Enable only one of the two stacks, unless you know what you are doing
#
CONFIG_FIREWIRE=y
# CONFIG_FIREWIRE_OHCI is not set
CONFIG_FIREWIRE_SBP2=m
CONFIG_IEEE1394=y
# CONFIG_IEEE1394_OHCI1394 is not set
CONFIG_IEEE1394_PCILYNX=m
CONFIG_IEEE1394_SBP2=y
CONFIG_IEEE1394_SBP2_PHYS_DMA=y
# CONFIG_IEEE1394_ETH1394_ROM_ENTRY is not set
# CONFIG_IEEE1394_ETH1394 is not set
CONFIG_IEEE1394_RAWIO=m
# CONFIG_IEEE1394_VERBOSEDEBUG is not set
CONFIG_I2O=y
CONFIG_I2O_LCT_NOTIFY_ON_CHANGES=y
# CONFIG_I2O_EXT_ADAPTEC is not set
# CONFIG_I2O_BUS is not set
# CONFIG_I2O_BLOCK is not set
CONFIG_I2O_SCSI=y
CONFIG_I2O_PROC=m
# CONFIG_MACINTOSH_DRIVERS is not set
CONFIG_NETDEVICES=y
CONFIG_IFB=m
# CONFIG_DUMMY is not set
CONFIG_BONDING=m
CONFIG_MACVLAN=y
CONFIG_EQUALIZER=y
# CONFIG_TUN is not set
# CONFIG_VETH is not set
CONFIG_NET_SB1000=y
# CONFIG_ARCNET is not set
CONFIG_PHYLIB=y

#
# MII PHY device drivers
#
CONFIG_MARVELL_PHY=y
CONFIG_DAVICOM_PHY=y
CONFIG_QSEMI_PHY=m
CONFIG_LXT_PHY=m
CONFIG_CICADA_PHY=m
CONFIG_VITESSE_PHY=y
CONFIG_SMSC_PHY=y
CONFIG_BROADCOM_PHY=y
# CONFIG_ICPLUS_PHY is not set
# CONFIG_REALTEK_PHY is not set
# CONFIG_NATIONAL_PHY is not set
CONFIG_STE10XP=m
# CONFIG_LSI_ET1011C_PHY is not set
# CONFIG_FIXED_PHY is not set
CONFIG_MDIO_BITBANG=y
# CONFIG_MDIO_GPIO is not set
CONFIG_NET_ETHERNET=y
CONFIG_MII=y
CONFIG_HAPPYMEAL=y
# CONFIG_SUNGEM is not set
CONFIG_CASSINI=y
# CONFIG_NET_VENDOR_3COM is not set
CONFIG_VORTEX=y
# CONFIG_ENC28J60 is not set
CONFIG_NET_TULIP=y
# CONFIG_DE2104X is not set
CONFIG_TULIP=m
# CONFIG_TULIP_MWI is not set
CONFIG_TULIP_MMIO=y
# CONFIG_TULIP_NAPI is not set
CONFIG_DE4X5=y
CONFIG_WINBOND_840=m
CONFIG_DM9102=y
CONFIG_ULI526X=m
# CONFIG_HP100 is not set
# CONFIG_IBM_NEW_EMAC_ZMII is not set
# CONFIG_IBM_NEW_EMAC_RGMII is not set
# CONFIG_IBM_NEW_EMAC_TAH is not set
# CONFIG_IBM_NEW_EMAC_EMAC4 is not set
# CONFIG_IBM_NEW_EMAC_NO_FLOW_CTRL is not set
# CONFIG_IBM_NEW_EMAC_MAL_CLR_ICINTSTAT is not set
# CONFIG_IBM_NEW_EMAC_MAL_COMMON_ERR is not set
CONFIG_NET_PCI=y
CONFIG_PCNET32=m
# CONFIG_AMD8111_ETH is not set
CONFIG_ADAPTEC_STARFIRE=y
CONFIG_B44=y
CONFIG_B44_PCI_AUTOSELECT=y
CONFIG_B44_PCICORE_AUTOSELECT=y
CONFIG_B44_PCI=y
CONFIG_FORCEDETH=y
# CONFIG_FORCEDETH_NAPI is not set
CONFIG_E100=y
CONFIG_FEALNX=m
# CONFIG_NATSEMI is not set
CONFIG_NE2K_PCI=y
# CONFIG_8139CP is not set
CONFIG_8139TOO=y
# CONFIG_8139TOO_PIO is not set
CONFIG_8139TOO_TUNE_TWISTER=y
CONFIG_8139TOO_8129=y
CONFIG_8139_OLD_RX_RESET=y
CONFIG_R6040=m
CONFIG_SIS900=m
CONFIG_EPIC100=m
CONFIG_SMSC9420=y
CONFIG_SUNDANCE=y
CONFIG_SUNDANCE_MMIO=y
CONFIG_TLAN=m
CONFIG_VIA_RHINE=y
CONFIG_VIA_RHINE_MMIO=y
# CONFIG_SC92031 is not set
# CONFIG_NET_POCKET is not set
CONFIG_ATL2=m
CONFIG_NETDEV_1000=y
# CONFIG_ACENIC is not set
CONFIG_DL2K=y
# CONFIG_E1000 is not set
CONFIG_E1000E=y
CONFIG_IP1000=m
CONFIG_IGB=m
CONFIG_IGB_LRO=y
# CONFIG_NS83820 is not set
CONFIG_HAMACHI=y
CONFIG_YELLOWFIN=y
# CONFIG_R8169 is not set
# CONFIG_SIS190 is not set
CONFIG_SKGE=y
CONFIG_SKGE_DEBUG=y
CONFIG_SKY2=y
# CONFIG_SKY2_DEBUG is not set
# CONFIG_VIA_VELOCITY is not set
CONFIG_TIGON3=y
CONFIG_BNX2=m
CONFIG_QLA3XXX=y
CONFIG_ATL1=y
# CONFIG_ATL1E is not set
# CONFIG_JME is not set
CONFIG_NETDEV_10000=y
CONFIG_CHELSIO_T1=y
# CONFIG_CHELSIO_T1_1G is not set
CONFIG_CHELSIO_T3_DEPENDS=y
CONFIG_CHELSIO_T3=m
CONFIG_ENIC=m
CONFIG_IXGBE=y
CONFIG_IXGBE_DCB=y
CONFIG_IXGB=m
# CONFIG_S2IO is not set
# CONFIG_MYRI10GE is not set
CONFIG_NIU=m
CONFIG_MLX4_EN=y
CONFIG_MLX4_CORE=y
CONFIG_MLX4_DEBUG=y
# CONFIG_TEHUTI is not set
# CONFIG_BNX2X is not set
CONFIG_QLGE=m
# CONFIG_SFC is not set
CONFIG_TR=y
# CONFIG_IBMOL is not set
# CONFIG_3C359 is not set
CONFIG_TMS380TR=y
CONFIG_TMSPCI=y
CONFIG_ABYSS=m

#
# Wireless LAN
#
CONFIG_WLAN_PRE80211=y
CONFIG_STRIP=y
# CONFIG_WLAN_80211 is not set
# CONFIG_IWLWIFI_LEDS is not set

#
# Enable WiMAX (Networking options) to see the WiMAX drivers
#

#
# USB Network Adapters
#
CONFIG_USB_CATC=y
CONFIG_USB_KAWETH=m
# CONFIG_USB_PEGASUS is not set
# CONFIG_USB_RTL8150 is not set
# CONFIG_USB_USBNET is not set
CONFIG_USB_HSO=m
CONFIG_WAN=y
# CONFIG_LANMEDIA is not set
CONFIG_HDLC=y
# CONFIG_HDLC_RAW is not set
CONFIG_HDLC_RAW_ETH=y
CONFIG_HDLC_CISCO=y
CONFIG_HDLC_FR=m
CONFIG_HDLC_PPP=m

#
# X.25/LAPB support is disabled
#
CONFIG_PCI200SYN=m
CONFIG_WANXL=m
# CONFIG_PC300TOO is not set
CONFIG_FARSYNC=m
# CONFIG_DSCC4 is not set
CONFIG_DLCI=y
CONFIG_DLCI_MAX=8
CONFIG_LAPBETHER=m
CONFIG_X25_ASY=m
# CONFIG_SBNI is not set
# CONFIG_ATM_DRIVERS is not set
CONFIG_FDDI=y
CONFIG_DEFXX=y
# CONFIG_DEFXX_MMIO is not set
CONFIG_SKFP=y
# CONFIG_HIPPI is not set
# CONFIG_PLIP is not set
# CONFIG_PPP is not set
CONFIG_SLIP=m
CONFIG_SLIP_COMPRESSED=y
CONFIG_SLHC=m
CONFIG_SLIP_SMART=y
CONFIG_SLIP_MODE_SLIP6=y
CONFIG_NET_FC=y
CONFIG_NETCONSOLE=y
CONFIG_NETCONSOLE_DYNAMIC=y
CONFIG_NETPOLL=y
# CONFIG_NETPOLL_TRAP is not set
CONFIG_NET_POLL_CONTROLLER=y
CONFIG_ISDN=y
CONFIG_ISDN_I4L=m
CONFIG_ISDN_PPP=y
CONFIG_ISDN_PPP_VJ=y
CONFIG_ISDN_MPP=y
# CONFIG_IPPP_FILTER is not set
CONFIG_ISDN_PPP_BSDCOMP=m
# CONFIG_ISDN_AUDIO is not set
CONFIG_ISDN_X25=y

#
# ISDN feature submodules
#
CONFIG_ISDN_DIVERSION=m

#
# ISDN4Linux hardware drivers
#

#
# Passive cards
#
CONFIG_ISDN_DRV_HISAX=m

#
# D-channel protocol features
#
CONFIG_HISAX_EURO=y
CONFIG_DE_AOC=y
# CONFIG_HISAX_NO_SENDCOMPLETE is not set
CONFIG_HISAX_NO_LLC=y
CONFIG_HISAX_NO_KEYPAD=y
CONFIG_HISAX_1TR6=y
CONFIG_HISAX_NI1=y
CONFIG_HISAX_MAX_CARDS=8

#
# HiSax supported cards
#
CONFIG_HISAX_16_3=y
CONFIG_HISAX_S0BOX=y
CONFIG_HISAX_FRITZPCI=y
CONFIG_HISAX_AVM_A1_PCMCIA=y
CONFIG_HISAX_ELSA=y
CONFIG_HISAX_DIEHLDIVA=y
# CONFIG_HISAX_SEDLBAUER is not set
# CONFIG_HISAX_NICCY is not set
CONFIG_HISAX_GAZEL=y
CONFIG_HISAX_HFC_SX=y
# CONFIG_HISAX_DEBUG is not set

#
# HiSax PCMCIA card service modules
#

#
# HiSax sub driver modules
#
# CONFIG_HISAX_ST5481 is not set
# CONFIG_HISAX_HFCUSB is not set
CONFIG_HISAX_HFC4S8S=m

#
# Active cards
#
CONFIG_HYSDN=m
CONFIG_ISDN_DRV_GIGASET=m
CONFIG_GIGASET_BASE=m
# CONFIG_GIGASET_M105 is not set
CONFIG_GIGASET_M101=m
CONFIG_GIGASET_DEBUG=y
CONFIG_GIGASET_UNDOCREQ=y
# CONFIG_ISDN_CAPI is not set
CONFIG_PHONE=y

#
# Input device support
#
CONFIG_INPUT=y
CONFIG_INPUT_FF_MEMLESS=y
CONFIG_INPUT_POLLDEV=y

#
# Userland interfaces
#
CONFIG_INPUT_MOUSEDEV=y
# CONFIG_INPUT_MOUSEDEV_PSAUX is not set
CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
CONFIG_INPUT_JOYDEV=y
CONFIG_INPUT_EVDEV=m
CONFIG_INPUT_EVBUG=m

#
# Input Device Drivers
#
CONFIG_INPUT_KEYBOARD=y
CONFIG_KEYBOARD_ATKBD=y
CONFIG_KEYBOARD_SUNKBD=y
# CONFIG_KEYBOARD_LKKBD is not set
# CONFIG_KEYBOARD_XTKBD is not set
CONFIG_KEYBOARD_NEWTON=m
CONFIG_KEYBOARD_STOWAWAY=y
CONFIG_KEYBOARD_GPIO=y
CONFIG_INPUT_MOUSE=y
# CONFIG_MOUSE_PS2 is not set
CONFIG_MOUSE_SERIAL=y
CONFIG_MOUSE_APPLETOUCH=y
CONFIG_MOUSE_BCM5974=y
CONFIG_MOUSE_VSXXXAA=y
# CONFIG_MOUSE_GPIO is not set
# CONFIG_INPUT_JOYSTICK is not set
CONFIG_INPUT_TABLET=y
CONFIG_TABLET_USB_ACECAD=y
CONFIG_TABLET_USB_AIPTEK=y
CONFIG_TABLET_USB_GTCO=m
CONFIG_TABLET_USB_KBTAB=m
CONFIG_TABLET_USB_WACOM=m
CONFIG_INPUT_TOUCHSCREEN=y
CONFIG_TOUCHSCREEN_ADS7846=m
CONFIG_TOUCHSCREEN_DA9034=m
CONFIG_TOUCHSCREEN_FUJITSU=y
CONFIG_TOUCHSCREEN_GUNZE=y
CONFIG_TOUCHSCREEN_ELO=m
CONFIG_TOUCHSCREEN_WACOM_W8001=y
CONFIG_TOUCHSCREEN_MTOUCH=y
CONFIG_TOUCHSCREEN_INEXIO=m
CONFIG_TOUCHSCREEN_MK712=m
# CONFIG_TOUCHSCREEN_PENMOUNT is not set
# CONFIG_TOUCHSCREEN_TOUCHRIGHT is not set
# CONFIG_TOUCHSCREEN_TOUCHWIN is not set
# CONFIG_TOUCHSCREEN_UCB1400 is not set
# CONFIG_TOUCHSCREEN_WM97XX is not set
CONFIG_TOUCHSCREEN_USB_COMPOSITE=y
CONFIG_TOUCHSCREEN_USB_EGALAX=y
CONFIG_TOUCHSCREEN_USB_PANJIT=y
CONFIG_TOUCHSCREEN_USB_3M=y
CONFIG_TOUCHSCREEN_USB_ITM=y
CONFIG_TOUCHSCREEN_USB_ETURBO=y
CONFIG_TOUCHSCREEN_USB_GUNZE=y
# CONFIG_TOUCHSCREEN_USB_DMC_TSC10 is not set
# CONFIG_TOUCHSCREEN_USB_IRTOUCH is not set
CONFIG_TOUCHSCREEN_USB_IDEALTEK=y
# CONFIG_TOUCHSCREEN_USB_GENERAL_TOUCH is not set
CONFIG_TOUCHSCREEN_USB_GOTOP=y
CONFIG_TOUCHSCREEN_TOUCHIT213=m
CONFIG_TOUCHSCREEN_TSC2007=m
CONFIG_INPUT_MISC=y
# CONFIG_INPUT_PCSPKR is not set
# CONFIG_INPUT_APANEL is not set
CONFIG_INPUT_ATLAS_BTNS=m
# CONFIG_INPUT_ATI_REMOTE is not set
CONFIG_INPUT_ATI_REMOTE2=y
# CONFIG_INPUT_KEYSPAN_REMOTE is not set
# CONFIG_INPUT_POWERMATE is not set
# CONFIG_INPUT_YEALINK is not set
CONFIG_INPUT_CM109=m
# CONFIG_INPUT_UINPUT is not set
# CONFIG_INPUT_PCF50633_PMU is not set

#
# Hardware I/O ports
#
CONFIG_SERIO=y
CONFIG_SERIO_I8042=y
CONFIG_SERIO_SERPORT=y
# CONFIG_SERIO_CT82C710 is not set
# CONFIG_SERIO_PARKBD is not set
CONFIG_SERIO_PCIPS2=m
CONFIG_SERIO_LIBPS2=y
# CONFIG_SERIO_RAW is not set
CONFIG_GAMEPORT=y
# CONFIG_GAMEPORT_NS558 is not set
# CONFIG_GAMEPORT_L4 is not set
# CONFIG_GAMEPORT_EMU10K1 is not set
CONFIG_GAMEPORT_FM801=m

#
# Character devices
#
CONFIG_VT=y
# CONFIG_CONSOLE_TRANSLATIONS is not set
CONFIG_VT_CONSOLE=y
CONFIG_HW_CONSOLE=y
CONFIG_VT_HW_CONSOLE_BINDING=y
CONFIG_DEVKMEM=y
CONFIG_SERIAL_NONSTANDARD=y
# CONFIG_COMPUTONE is not set
CONFIG_ROCKETPORT=m
# CONFIG_CYCLADES is not set
# CONFIG_DIGIEPCA is not set
CONFIG_MOXA_INTELLIO=m
# CONFIG_MOXA_SMARTIO is not set
CONFIG_ISI=m
CONFIG_SYNCLINK=m
CONFIG_SYNCLINKMP=y
CONFIG_SYNCLINK_GT=m
CONFIG_N_HDLC=m
CONFIG_RISCOM8=m
# CONFIG_SPECIALIX is not set
# CONFIG_SX is not set
# CONFIG_RIO is not set
# CONFIG_STALDRV is not set
# CONFIG_NOZOMI is not set

#
# Serial drivers
#
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_FIX_EARLYCON_MEM=y
# CONFIG_SERIAL_8250_PCI is not set
# CONFIG_SERIAL_8250_PNP is not set
CONFIG_SERIAL_8250_NR_UARTS=4
CONFIG_SERIAL_8250_RUNTIME_UARTS=4
# CONFIG_SERIAL_8250_EXTENDED is not set

#
# Non-8250 serial port support
#
CONFIG_SERIAL_CORE=y
CONFIG_SERIAL_CORE_CONSOLE=y
CONFIG_SERIAL_JSM=y
CONFIG_UNIX98_PTYS=y
CONFIG_DEVPTS_MULTIPLE_INSTANCES=y
CONFIG_LEGACY_PTYS=y
CONFIG_LEGACY_PTY_COUNT=256
CONFIG_PRINTER=y
# CONFIG_LP_CONSOLE is not set
# CONFIG_PPDEV is not set
CONFIG_IPMI_HANDLER=m
# CONFIG_IPMI_PANIC_EVENT is not set
CONFIG_IPMI_DEVICE_INTERFACE=m
# CONFIG_IPMI_SI is not set
CONFIG_IPMI_WATCHDOG=m
CONFIG_IPMI_POWEROFF=m
# CONFIG_HW_RANDOM is not set
CONFIG_NVRAM=m
CONFIG_R3964=m
CONFIG_APPLICOM=m
# CONFIG_MWAVE is not set
CONFIG_PC8736x_GPIO=y
CONFIG_NSC_GPIO=y
CONFIG_RAW_DRIVER=m
CONFIG_MAX_RAW_DEVS=256
# CONFIG_HPET is not set
CONFIG_HANGCHECK_TIMER=m
CONFIG_TCG_TPM=y
# CONFIG_TCG_TIS is not set
# CONFIG_TCG_NSC is not set
# CONFIG_TCG_ATMEL is not set
CONFIG_TCG_INFINEON=y
CONFIG_TELCLOCK=y
CONFIG_DEVPORT=y
CONFIG_I2C=y
CONFIG_I2C_BOARDINFO=y
CONFIG_I2C_CHARDEV=m
CONFIG_I2C_HELPER_AUTO=y
CONFIG_I2C_ALGOBIT=y
CONFIG_I2C_ALGOPCA=m

#
# I2C Hardware Bus support
#

#
# PC SMBus host controller drivers
#
CONFIG_I2C_ALI1535=m
# CONFIG_I2C_ALI1563 is not set
# CONFIG_I2C_ALI15X3 is not set
CONFIG_I2C_AMD756=y
# CONFIG_I2C_AMD8111 is not set
CONFIG_I2C_I801=m
CONFIG_I2C_ISCH=m
# CONFIG_I2C_PIIX4 is not set
# CONFIG_I2C_NFORCE2 is not set
# CONFIG_I2C_SIS5595 is not set
CONFIG_I2C_SIS630=m
CONFIG_I2C_SIS96X=y
CONFIG_I2C_VIA=y
CONFIG_I2C_VIAPRO=m

#
# I2C system bus drivers (mostly embedded / system-on-chip)
#
CONFIG_I2C_GPIO=y
# CONFIG_I2C_OCORES is not set
# CONFIG_I2C_SIMTEC is not set

#
# External I2C/SMBus adapter drivers
#
CONFIG_I2C_PARPORT=m
CONFIG_I2C_PARPORT_LIGHT=y
CONFIG_I2C_TAOS_EVM=m
# CONFIG_I2C_TINY_USB is not set

#
# Graphics adapter I2C/DDC channel drivers
#
CONFIG_I2C_VOODOO3=y

#
# Other I2C/SMBus bus drivers
#
CONFIG_I2C_PCA_PLATFORM=m
# CONFIG_I2C_STUB is not set

#
# Miscellaneous I2C Chip support
#
CONFIG_DS1682=m
CONFIG_SENSORS_PCF8591=y
# CONFIG_SENSORS_MAX6875 is not set
CONFIG_SENSORS_TSL2550=m
CONFIG_I2C_DEBUG_CORE=y
CONFIG_I2C_DEBUG_ALGO=y
CONFIG_I2C_DEBUG_BUS=y
CONFIG_I2C_DEBUG_CHIP=y
CONFIG_SPI=y
CONFIG_SPI_MASTER=y

#
# SPI Master Controller Drivers
#
CONFIG_SPI_BITBANG=y
CONFIG_SPI_BUTTERFLY=m
# CONFIG_SPI_GPIO is not set
CONFIG_SPI_LM70_LLP=y

#
# SPI Protocol Masters
#
CONFIG_SPI_SPIDEV=m
CONFIG_SPI_TLE62X0=y
CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y
CONFIG_GPIOLIB=y
CONFIG_GPIO_SYSFS=y

#
# Memory mapped GPIO expanders:
#

#
# I2C GPIO expanders:
#
CONFIG_GPIO_MAX732X=m
CONFIG_GPIO_PCA953X=y
CONFIG_GPIO_PCF857X=m
# CONFIG_GPIO_TWL4030 is not set

#
# PCI GPIO expanders:
#
CONFIG_GPIO_BT8XX=y

#
# SPI GPIO expanders:
#
# CONFIG_GPIO_MAX7301 is not set
CONFIG_GPIO_MCP23S08=m
CONFIG_W1=y
CONFIG_W1_CON=y

#
# 1-wire Bus Masters
#
CONFIG_W1_MASTER_MATROX=m
CONFIG_W1_MASTER_DS2490=y
CONFIG_W1_MASTER_DS2482=y
CONFIG_W1_MASTER_GPIO=y

#
# 1-wire Slaves
#
# CONFIG_W1_SLAVE_THERM is not set
CONFIG_W1_SLAVE_SMEM=m
CONFIG_W1_SLAVE_DS2433=y
CONFIG_W1_SLAVE_DS2433_CRC=y
CONFIG_W1_SLAVE_DS2760=y
# CONFIG_W1_SLAVE_BQ27000 is not set
CONFIG_POWER_SUPPLY=y
CONFIG_POWER_SUPPLY_DEBUG=y
CONFIG_PDA_POWER=m
CONFIG_BATTERY_DS2760=y
# CONFIG_BATTERY_BQ27x00 is not set
# CONFIG_BATTERY_DA9030 is not set
CONFIG_CHARGER_PCF50633=m
# CONFIG_HWMON is not set
CONFIG_THERMAL=y
CONFIG_WATCHDOG=y
CONFIG_WATCHDOG_NOWAYOUT=y

#
# Watchdog Device Drivers
#
CONFIG_SOFT_WATCHDOG=m
# CONFIG_ACQUIRE_WDT is not set
CONFIG_ADVANTECH_WDT=m
CONFIG_ALIM1535_WDT=m
# CONFIG_ALIM7101_WDT is not set
CONFIG_SC520_WDT=y
CONFIG_IB700_WDT=y
# CONFIG_IBMASR is not set
CONFIG_WAFER_WDT=m
# CONFIG_I6300ESB_WDT is not set
# CONFIG_ITCO_WDT is not set
CONFIG_IT8712F_WDT=y
# CONFIG_IT87_WDT is not set
CONFIG_HP_WATCHDOG=m
CONFIG_SC1200_WDT=y
CONFIG_PC87413_WDT=m
# CONFIG_60XX_WDT is not set
CONFIG_SBC8360_WDT=y
CONFIG_CPU5_WDT=y
CONFIG_SMSC_SCH311X_WDT=m
CONFIG_SMSC37B787_WDT=y
CONFIG_W83627HF_WDT=m
CONFIG_W83697HF_WDT=m
CONFIG_W83697UG_WDT=y
CONFIG_W83877F_WDT=y
CONFIG_W83977F_WDT=y
# CONFIG_MACHZ_WDT is not set
CONFIG_SBC_EPX_C3_WATCHDOG=y

#
# PCI-based Watchdog Cards
#
CONFIG_PCIPCWATCHDOG=m
# CONFIG_WDTPCI is not set

#
# USB-based Watchdog Cards
#
# CONFIG_USBPCWATCHDOG is not set
CONFIG_SSB_POSSIBLE=y

#
# Sonics Silicon Backplane
#
CONFIG_SSB=y
CONFIG_SSB_SPROM=y
CONFIG_SSB_PCIHOST_POSSIBLE=y
CONFIG_SSB_PCIHOST=y
# CONFIG_SSB_B43_PCI_BRIDGE is not set
CONFIG_SSB_SILENT=y
CONFIG_SSB_DRIVER_PCICORE_POSSIBLE=y
CONFIG_SSB_DRIVER_PCICORE=y

#
# Multifunction device drivers
#
CONFIG_MFD_CORE=y
# CONFIG_MFD_SM501 is not set
CONFIG_HTC_PASIC3=m
CONFIG_UCB1400_CORE=y
# CONFIG_TPS65010 is not set
CONFIG_TWL4030_CORE=y
# CONFIG_MFD_TMIO is not set
CONFIG_PMIC_DA903X=y
CONFIG_MFD_WM8400=y
CONFIG_MFD_PCF50633=m
CONFIG_PCF50633_ADC=m
# CONFIG_PCF50633_GPIO is not set
# CONFIG_REGULATOR is not set

#
# Multimedia devices
#

#
# Multimedia core support
#
CONFIG_VIDEO_DEV=y
CONFIG_VIDEO_V4L2_COMMON=y
# CONFIG_VIDEO_ALLOW_V4L1 is not set
CONFIG_VIDEO_V4L1_COMPAT=y
# CONFIG_DVB_CORE is not set
CONFIG_VIDEO_MEDIA=y

#
# Multimedia drivers
#
CONFIG_MEDIA_ATTACH=y
CONFIG_MEDIA_TUNER=y
CONFIG_MEDIA_TUNER_CUSTOMIZE=y
CONFIG_MEDIA_TUNER_SIMPLE=m
# CONFIG_MEDIA_TUNER_TDA8290 is not set
CONFIG_MEDIA_TUNER_TDA827X=y
CONFIG_MEDIA_TUNER_TDA18271=y
CONFIG_MEDIA_TUNER_TDA9887=m
# CONFIG_MEDIA_TUNER_TEA5761 is not set
# CONFIG_MEDIA_TUNER_TEA5767 is not set
CONFIG_MEDIA_TUNER_MT20XX=m
CONFIG_MEDIA_TUNER_MT2060=m
CONFIG_MEDIA_TUNER_MT2266=m
CONFIG_MEDIA_TUNER_MT2131=m
CONFIG_MEDIA_TUNER_QT1010=y
# CONFIG_MEDIA_TUNER_XC2028 is not set
CONFIG_MEDIA_TUNER_XC5000=m
CONFIG_MEDIA_TUNER_MXL5005S=m
CONFIG_MEDIA_TUNER_MXL5007T=m
CONFIG_VIDEO_V4L2=y
# CONFIG_VIDEO_CAPTURE_DRIVERS is not set
CONFIG_RADIO_ADAPTERS=y
CONFIG_RADIO_GEMTEK_PCI=y
CONFIG_RADIO_MAXIRADIO=m
CONFIG_RADIO_MAESTRO=y
CONFIG_USB_DSBR=y
CONFIG_USB_SI470X=m
CONFIG_USB_MR800=y
CONFIG_RADIO_TEA5764=m
CONFIG_DAB=y
CONFIG_USB_DABUSB=y

#
# Graphics support
#
CONFIG_AGP=y
CONFIG_AGP_AMD64=y
CONFIG_AGP_INTEL=y
CONFIG_AGP_SIS=y
CONFIG_AGP_VIA=m
CONFIG_DRM=y
CONFIG_DRM_TDFX=y
CONFIG_DRM_R128=m
CONFIG_DRM_RADEON=y
# CONFIG_DRM_I810 is not set
# CONFIG_DRM_I830 is not set
# CONFIG_DRM_I915 is not set
# CONFIG_DRM_MGA is not set
# CONFIG_DRM_SIS is not set
CONFIG_DRM_VIA=y
# CONFIG_DRM_SAVAGE is not set
CONFIG_VGASTATE=y
# CONFIG_VIDEO_OUTPUT_CONTROL is not set
CONFIG_FB=y
# CONFIG_FIRMWARE_EDID is not set
CONFIG_FB_DDC=y
CONFIG_FB_BOOT_VESA_SUPPORT=y
CONFIG_FB_CFB_FILLRECT=y
CONFIG_FB_CFB_COPYAREA=y
CONFIG_FB_CFB_IMAGEBLIT=y
# CONFIG_FB_CFB_REV_PIXELS_IN_BYTE is not set
CONFIG_FB_SYS_FILLRECT=m
CONFIG_FB_SYS_COPYAREA=m
CONFIG_FB_SYS_IMAGEBLIT=m
CONFIG_FB_FOREIGN_ENDIAN=y
CONFIG_FB_BOTH_ENDIAN=y
# CONFIG_FB_BIG_ENDIAN is not set
# CONFIG_FB_LITTLE_ENDIAN is not set
CONFIG_FB_SYS_FOPS=m
CONFIG_FB_DEFERRED_IO=y
CONFIG_FB_SVGALIB=m
# CONFIG_FB_MACMODES is not set
CONFIG_FB_BACKLIGHT=y
CONFIG_FB_MODE_HELPERS=y
CONFIG_FB_TILEBLITTING=y

#
# Frame buffer hardware drivers
#
CONFIG_FB_PM2=y
# CONFIG_FB_PM2_FIFO_DISCONNECT is not set
CONFIG_FB_CYBER2000=y
# CONFIG_FB_ARC is not set
CONFIG_FB_IMSTT=y
CONFIG_FB_UVESA=m
CONFIG_FB_EFI=y
# CONFIG_FB_N411 is not set
CONFIG_FB_HGA=m
CONFIG_FB_HGA_ACCEL=y
# CONFIG_FB_S1D13XXX is not set
CONFIG_FB_NVIDIA=y
CONFIG_FB_NVIDIA_I2C=y
CONFIG_FB_NVIDIA_DEBUG=y
# CONFIG_FB_NVIDIA_BACKLIGHT is not set
CONFIG_FB_RIVA=y
# CONFIG_FB_RIVA_I2C is not set
# CONFIG_FB_RIVA_DEBUG is not set
CONFIG_FB_RIVA_BACKLIGHT=y
CONFIG_FB_LE80578=m
CONFIG_FB_CARILLO_RANCH=m
CONFIG_FB_INTEL=y
CONFIG_FB_INTEL_DEBUG=y
CONFIG_FB_INTEL_I2C=y
CONFIG_FB_MATROX=y
# CONFIG_FB_MATROX_MILLENIUM is not set
# CONFIG_FB_MATROX_MYSTIQUE is not set
CONFIG_FB_MATROX_G=y
CONFIG_FB_MATROX_I2C=m
CONFIG_FB_MATROX_MAVEN=m
CONFIG_FB_MATROX_MULTIHEAD=y
CONFIG_FB_ATY128=m
CONFIG_FB_ATY128_BACKLIGHT=y
# CONFIG_FB_ATY is not set
# CONFIG_FB_S3 is not set
CONFIG_FB_SAVAGE=y
CONFIG_FB_SAVAGE_I2C=y
CONFIG_FB_SAVAGE_ACCEL=y
# CONFIG_FB_SIS is not set
CONFIG_FB_VIA=y
CONFIG_FB_NEOMAGIC=y
CONFIG_FB_KYRO=y
CONFIG_FB_3DFX=m
CONFIG_FB_3DFX_ACCEL=y
# CONFIG_FB_VOODOO1 is not set
CONFIG_FB_VT8623=m
# CONFIG_FB_TRIDENT is not set
CONFIG_FB_ARK=m
# CONFIG_FB_PM3 is not set
CONFIG_FB_CARMINE=m
CONFIG_FB_CARMINE_DRAM_EVAL=y
# CONFIG_CARMINE_DRAM_CUSTOM is not set
CONFIG_FB_GEODE=y
CONFIG_FB_GEODE_LX=m
# CONFIG_FB_GEODE_GX is not set
CONFIG_FB_GEODE_GX1=m
CONFIG_FB_TMIO=y
CONFIG_FB_TMIO_ACCELL=y
CONFIG_FB_METRONOME=m
CONFIG_FB_MB862XX=y
CONFIG_FB_MB862XX_PCI_GDC=y
CONFIG_BACKLIGHT_LCD_SUPPORT=y
CONFIG_LCD_CLASS_DEVICE=m
CONFIG_LCD_LTV350QV=m
# CONFIG_LCD_ILI9320 is not set
# CONFIG_LCD_TDO24M is not set
# CONFIG_LCD_VGG2432A4 is not set
CONFIG_LCD_PLATFORM=m
CONFIG_BACKLIGHT_CLASS_DEVICE=y
# CONFIG_BACKLIGHT_GENERIC is not set
CONFIG_BACKLIGHT_PROGEAR=y
CONFIG_BACKLIGHT_CARILLO_RANCH=m
CONFIG_BACKLIGHT_DA903X=m
CONFIG_BACKLIGHT_MBP_NVIDIA=m
CONFIG_BACKLIGHT_SAHARA=m

#
# Display device support
#
CONFIG_DISPLAY_SUPPORT=m

#
# Display hardware drivers
#

#
# Console display driver support
#
CONFIG_VGA_CONSOLE=y
CONFIG_VGACON_SOFT_SCROLLBACK=y
CONFIG_VGACON_SOFT_SCROLLBACK_SIZE=64
CONFIG_DUMMY_CONSOLE=y
# CONFIG_LOGO is not set
CONFIG_SOUND=y
CONFIG_SOUND_OSS_CORE=y
CONFIG_SND=y
CONFIG_SND_TIMER=y
CONFIG_SND_PCM=y
CONFIG_SND_HWDEP=y
CONFIG_SND_RAWMIDI=y
CONFIG_SND_JACK=y
CONFIG_SND_SEQUENCER=y
# CONFIG_SND_SEQ_DUMMY is not set
CONFIG_SND_OSSEMUL=y
# CONFIG_SND_MIXER_OSS is not set
CONFIG_SND_PCM_OSS=y
CONFIG_SND_PCM_OSS_PLUGINS=y
CONFIG_SND_SEQUENCER_OSS=y
CONFIG_SND_HRTIMER=m
CONFIG_SND_SEQ_HRTIMER_DEFAULT=y
# CONFIG_SND_DYNAMIC_MINORS is not set
CONFIG_SND_SUPPORT_OLD_API=y
CONFIG_SND_VERBOSE_PROCFS=y
# CONFIG_SND_VERBOSE_PRINTK is not set
# CONFIG_SND_DEBUG is not set
CONFIG_SND_VMASTER=y
CONFIG_SND_MPU401_UART=y
CONFIG_SND_OPL3_LIB=y
CONFIG_SND_AC97_CODEC=y
# CONFIG_SND_DRIVERS is not set
CONFIG_SND_SB_COMMON=y
CONFIG_SND_SB16_DSP=y
CONFIG_SND_PCI=y
# CONFIG_SND_AD1889 is not set
# CONFIG_SND_ALS300 is not set
CONFIG_SND_ALS4000=y
CONFIG_SND_ALI5451=y
CONFIG_SND_ATIIXP=m
# CONFIG_SND_ATIIXP_MODEM is not set
CONFIG_SND_AU8810=m
CONFIG_SND_AU8820=y
# CONFIG_SND_AU8830 is not set
CONFIG_SND_AW2=y
# CONFIG_SND_AZT3328 is not set
CONFIG_SND_BT87X=m
# CONFIG_SND_BT87X_OVERCLOCK is not set
CONFIG_SND_CA0106=m
CONFIG_SND_CMIPCI=m
CONFIG_SND_OXYGEN_LIB=m
# CONFIG_SND_OXYGEN is not set
CONFIG_SND_CS4281=m
# CONFIG_SND_CS46XX is not set
CONFIG_SND_CS5530=y
CONFIG_SND_DARLA20=m
# CONFIG_SND_GINA20 is not set
CONFIG_SND_LAYLA20=m
CONFIG_SND_DARLA24=y
CONFIG_SND_GINA24=m
# CONFIG_SND_LAYLA24 is not set
CONFIG_SND_MONA=m
CONFIG_SND_MIA=m
CONFIG_SND_ECHO3G=m
# CONFIG_SND_INDIGO is not set
CONFIG_SND_INDIGOIO=m
CONFIG_SND_INDIGODJ=y
CONFIG_SND_EMU10K1=m
# CONFIG_SND_EMU10K1X is not set
# CONFIG_SND_ENS1370 is not set
# CONFIG_SND_ENS1371 is not set
CONFIG_SND_ES1938=y
CONFIG_SND_ES1968=y
CONFIG_SND_FM801=m
CONFIG_SND_HDA_INTEL=m
# CONFIG_SND_HDA_HWDEP is not set
# CONFIG_SND_HDA_INPUT_BEEP is not set
# CONFIG_SND_HDA_CODEC_REALTEK is not set
CONFIG_SND_HDA_CODEC_ANALOG=y
# CONFIG_SND_HDA_CODEC_SIGMATEL is not set
CONFIG_SND_HDA_CODEC_VIA=y
# CONFIG_SND_HDA_CODEC_ATIHDMI is not set
CONFIG_SND_HDA_CODEC_NVHDMI=y
CONFIG_SND_HDA_CODEC_INTELHDMI=y
CONFIG_SND_HDA_ELD=y
CONFIG_SND_HDA_CODEC_CONEXANT=y
# CONFIG_SND_HDA_CODEC_CMEDIA is not set
CONFIG_SND_HDA_CODEC_SI3054=y
# CONFIG_SND_HDA_GENERIC is not set
# CONFIG_SND_HDA_POWER_SAVE is not set
CONFIG_SND_HDSP=m
CONFIG_SND_HDSPM=m
CONFIG_SND_HIFIER=m
# CONFIG_SND_ICE1712 is not set
CONFIG_SND_ICE1724=m
CONFIG_SND_INTEL8X0=m
CONFIG_SND_INTEL8X0M=m
# CONFIG_SND_KORG1212 is not set
CONFIG_SND_MAESTRO3=m
CONFIG_SND_MIXART=m
CONFIG_SND_NM256=y
CONFIG_SND_PCXHR=m
# CONFIG_SND_RIPTIDE is not set
CONFIG_SND_RME32=m
# CONFIG_SND_RME96 is not set
# CONFIG_SND_RME9652 is not set
# CONFIG_SND_SONICVIBES is not set
# CONFIG_SND_TRIDENT is not set
# CONFIG_SND_VIA82XX is not set
CONFIG_SND_VIA82XX_MODEM=y
CONFIG_SND_VIRTUOSO=m
# CONFIG_SND_VX222 is not set
CONFIG_SND_YMFPCI=y
CONFIG_SND_SPI=y
CONFIG_SND_USB=y
CONFIG_SND_USB_AUDIO=y
CONFIG_SND_USB_USX2Y=m
CONFIG_SND_USB_CAIAQ=y
CONFIG_SND_USB_CAIAQ_INPUT=y
# CONFIG_SND_USB_US122L is not set
CONFIG_SND_SOC=m
CONFIG_SND_SOC_I2C_AND_SPI=m
# CONFIG_SND_SOC_ALL_CODECS is not set
CONFIG_SOUND_PRIME=y
CONFIG_SOUND_OSS=m
# CONFIG_SOUND_TRACEINIT is not set
CONFIG_SOUND_DMAP=y
# CONFIG_SOUND_SSCAPE is not set
# CONFIG_SOUND_VMIDI is not set
CONFIG_SOUND_TRIX=m
# CONFIG_SOUND_MSS is not set
CONFIG_SOUND_MPU401=m
# CONFIG_SOUND_PAS is not set
CONFIG_SOUND_PSS=m
# CONFIG_PSS_MIXER is not set
CONFIG_SOUND_SB=m
CONFIG_SOUND_YM3812=m
# CONFIG_SOUND_UART6850 is not set
CONFIG_SOUND_AEDSP16=m
CONFIG_SC6600=y
# CONFIG_SC6600_JOY is not set
CONFIG_SC6600_CDROM=4
CONFIG_SC6600_CDROMBASE=0
CONFIG_SOUND_KAHLUA=m
CONFIG_AC97_BUS=y
CONFIG_HID_SUPPORT=y
CONFIG_HID=m
CONFIG_HID_DEBUG=y
CONFIG_HIDRAW=y

#
# USB Input Devices
#
# CONFIG_USB_HID is not set
# CONFIG_HID_PID is not set

#
# USB HID Boot Protocol drivers
#
CONFIG_USB_KBD=y
CONFIG_USB_MOUSE=y

#
# Special HID drivers
#
# CONFIG_HID_COMPAT is not set
CONFIG_USB_SUPPORT=y
CONFIG_USB_ARCH_HAS_HCD=y
CONFIG_USB_ARCH_HAS_OHCI=y
CONFIG_USB_ARCH_HAS_EHCI=y
CONFIG_USB=y
CONFIG_USB_DEBUG=y
CONFIG_USB_ANNOUNCE_NEW_DEVICES=y

#
# Miscellaneous USB options
#
CONFIG_USB_DEVICEFS=y
CONFIG_USB_DEVICE_CLASS=y
CONFIG_USB_DYNAMIC_MINORS=y
CONFIG_USB_SUSPEND=y
# CONFIG_USB_OTG is not set
CONFIG_USB_OTG_WHITELIST=y
# CONFIG_USB_OTG_BLACKLIST_HUB is not set
CONFIG_USB_MON=y
CONFIG_USB_WUSB=m
CONFIG_USB_WUSB_CBAF=y
# CONFIG_USB_WUSB_CBAF_DEBUG is not set

#
# USB Host Controller Drivers
#
CONFIG_USB_C67X00_HCD=m
CONFIG_USB_EHCI_HCD=y
CONFIG_USB_EHCI_ROOT_HUB_TT=y
CONFIG_USB_EHCI_TT_NEWSCHED=y
CONFIG_USB_OXU210HP_HCD=m
# CONFIG_USB_ISP116X_HCD is not set
# CONFIG_USB_ISP1760_HCD is not set
CONFIG_USB_OHCI_HCD=y
CONFIG_USB_OHCI_HCD_SSB=y
# CONFIG_USB_OHCI_BIG_ENDIAN_DESC is not set
# CONFIG_USB_OHCI_BIG_ENDIAN_MMIO is not set
CONFIG_USB_OHCI_LITTLE_ENDIAN=y
CONFIG_USB_UHCI_HCD=y
# CONFIG_USB_SL811_HCD is not set
CONFIG_USB_R8A66597_HCD=m
CONFIG_USB_HWA_HCD=m

#
# USB Device Class drivers
#
# CONFIG_USB_ACM is not set
# CONFIG_USB_PRINTER is not set
CONFIG_USB_WDM=y
CONFIG_USB_TMC=y

#
# NOTE: USB_STORAGE depends on SCSI but BLK_DEV_SD may also be needed;
#

#
# see USB_STORAGE Help for more information
#
# CONFIG_USB_STORAGE is not set
# CONFIG_USB_LIBUSUAL is not set

#
# USB Imaging devices
#
# CONFIG_USB_MDC800 is not set
CONFIG_USB_MICROTEK=y

#
# USB port drivers
#
# CONFIG_USB_USS720 is not set
# CONFIG_USB_SERIAL is not set

#
# USB Miscellaneous drivers
#
CONFIG_USB_EMI62=y
CONFIG_USB_EMI26=m
# CONFIG_USB_ADUTUX is not set
CONFIG_USB_SEVSEG=m
CONFIG_USB_RIO500=y
CONFIG_USB_LEGOTOWER=y
# CONFIG_USB_LCD is not set
# CONFIG_USB_BERRY_CHARGE is not set
CONFIG_USB_LED=m
CONFIG_USB_CYPRESS_CY7C63=y
# CONFIG_USB_CYTHERM is not set
# CONFIG_USB_PHIDGET is not set
CONFIG_USB_IDMOUSE=m
# CONFIG_USB_FTDI_ELAN is not set
# CONFIG_USB_APPLEDISPLAY is not set
CONFIG_USB_SISUSBVGA=m
# CONFIG_USB_SISUSBVGA_CON is not set
CONFIG_USB_LD=y
CONFIG_USB_TRANCEVIBRATOR=y
CONFIG_USB_IOWARRIOR=y
CONFIG_USB_TEST=m
CONFIG_USB_ISIGHTFW=y
CONFIG_USB_VST=y
CONFIG_USB_ATM=y
CONFIG_USB_SPEEDTOUCH=y
CONFIG_USB_CXACRU=y
# CONFIG_USB_UEAGLEATM is not set
# CONFIG_USB_XUSBATM is not set

#
# OTG and related infrastructure
#
CONFIG_USB_OTG_UTILS=y
# CONFIG_USB_GPIO_VBUS is not set
CONFIG_TWL4030_USB=m
CONFIG_UWB=m
CONFIG_UWB_HWA=m
CONFIG_UWB_WHCI=m
# CONFIG_UWB_WLP is not set
# CONFIG_UWB_I1480U is not set
# CONFIG_MMC is not set
CONFIG_MEMSTICK=y
CONFIG_MEMSTICK_DEBUG=y

#
# MemoryStick drivers
#
CONFIG_MEMSTICK_UNSAFE_RESUME=y
CONFIG_MSPRO_BLOCK=m

#
# MemoryStick Host Controller Drivers
#
# CONFIG_MEMSTICK_TIFM_MS is not set
# CONFIG_MEMSTICK_JMICRON_38X is not set
CONFIG_NEW_LEDS=y
CONFIG_LEDS_CLASS=y

#
# LED drivers
#
CONFIG_LEDS_ALIX2=m
CONFIG_LEDS_PCA9532=m
CONFIG_LEDS_GPIO=m
CONFIG_LEDS_CLEVO_MAIL=y
CONFIG_LEDS_PCA955X=m
CONFIG_LEDS_DA903X=y

#
# LED Triggers
#
CONFIG_LEDS_TRIGGERS=y
CONFIG_LEDS_TRIGGER_TIMER=y
# CONFIG_LEDS_TRIGGER_HEARTBEAT is not set
CONFIG_LEDS_TRIGGER_BACKLIGHT=m
# CONFIG_LEDS_TRIGGER_DEFAULT_ON is not set
CONFIG_ACCESSIBILITY=y
CONFIG_A11Y_BRAILLE_CONSOLE=y
CONFIG_EDAC=y

#
# Reporting subsystems
#
# CONFIG_EDAC_DEBUG is not set
CONFIG_EDAC_MM_EDAC=y
CONFIG_EDAC_E752X=m
CONFIG_EDAC_I82975X=y
# CONFIG_EDAC_I3000 is not set
CONFIG_EDAC_X38=y
CONFIG_EDAC_I5400=y
CONFIG_EDAC_I5000=m
# CONFIG_EDAC_I5100 is not set
CONFIG_RTC_LIB=y
CONFIG_RTC_CLASS=y
CONFIG_RTC_HCTOSYS=y
CONFIG_RTC_HCTOSYS_DEVICE="rtc0"
# CONFIG_RTC_DEBUG is not set

#
# RTC interfaces
#
CONFIG_RTC_INTF_SYSFS=y
# CONFIG_RTC_INTF_PROC is not set
# CONFIG_RTC_INTF_DEV is not set
# CONFIG_RTC_DRV_TEST is not set

#
# I2C RTC drivers
#
CONFIG_RTC_DRV_DS1307=m
CONFIG_RTC_DRV_DS1374=m
# CONFIG_RTC_DRV_DS1672 is not set
CONFIG_RTC_DRV_MAX6900=y
CONFIG_RTC_DRV_RS5C372=m
# CONFIG_RTC_DRV_ISL1208 is not set
CONFIG_RTC_DRV_X1205=y
CONFIG_RTC_DRV_PCF8563=m
# CONFIG_RTC_DRV_PCF8583 is not set
# CONFIG_RTC_DRV_M41T80 is not set
CONFIG_RTC_DRV_TWL4030=m
# CONFIG_RTC_DRV_S35390A is not set
CONFIG_RTC_DRV_FM3130=m
CONFIG_RTC_DRV_RX8581=m

#
# SPI RTC drivers
#
CONFIG_RTC_DRV_M41T94=m
CONFIG_RTC_DRV_DS1305=y
CONFIG_RTC_DRV_DS1390=m
CONFIG_RTC_DRV_MAX6902=y
CONFIG_RTC_DRV_R9701=y
CONFIG_RTC_DRV_RS5C348=y
CONFIG_RTC_DRV_DS3234=m

#
# Platform RTC drivers
#
CONFIG_RTC_DRV_CMOS=m
# CONFIG_RTC_DRV_DS1286 is not set
CONFIG_RTC_DRV_DS1511=m
# CONFIG_RTC_DRV_DS1553 is not set
CONFIG_RTC_DRV_DS1742=y
# CONFIG_RTC_DRV_STK17TA8 is not set
CONFIG_RTC_DRV_M48T86=m
# CONFIG_RTC_DRV_M48T35 is not set
CONFIG_RTC_DRV_M48T59=y
CONFIG_RTC_DRV_BQ4802=y
# CONFIG_RTC_DRV_V3020 is not set
CONFIG_RTC_DRV_PCF50633=m

#
# on-CPU RTC drivers
#
# CONFIG_DMADEVICES is not set
CONFIG_AUXDISPLAY=y
CONFIG_KS0108=m
CONFIG_KS0108_PORT=0x378
CONFIG_KS0108_DELAY=2
CONFIG_CFAG12864B=m
CONFIG_CFAG12864B_RATE=20
CONFIG_UIO=y
CONFIG_UIO_CIF=y
CONFIG_UIO_PDRV=m
# CONFIG_UIO_PDRV_GENIRQ is not set
# CONFIG_UIO_SMX is not set
# CONFIG_UIO_SERCOS3 is not set
# CONFIG_X86_PLATFORM_DEVICES is not set

#
# Firmware Drivers
#
CONFIG_EDD=m
# CONFIG_EDD_OFF is not set
# CONFIG_FIRMWARE_MEMMAP is not set
# CONFIG_EFI_VARS is not set
CONFIG_DELL_RBU=m
CONFIG_DCDBAS=y
CONFIG_DMIID=y
CONFIG_ISCSI_IBFT_FIND=y
# CONFIG_ISCSI_IBFT is not set

#
# File systems
#
CONFIG_EXT2_FS=m
CONFIG_EXT2_FS_XATTR=y
CONFIG_EXT2_FS_POSIX_ACL=y
CONFIG_EXT2_FS_SECURITY=y
CONFIG_EXT2_FS_XIP=y
CONFIG_EXT3_FS=y
CONFIG_EXT3_FS_XATTR=y
CONFIG_EXT3_FS_POSIX_ACL=y
CONFIG_EXT3_FS_SECURITY=y
# CONFIG_EXT4_FS is not set
CONFIG_FS_XIP=y
CONFIG_JBD=y
CONFIG_JBD_DEBUG=y
CONFIG_JBD2=m
# CONFIG_JBD2_DEBUG is not set
CONFIG_FS_MBCACHE=y
# CONFIG_REISERFS_FS is not set
CONFIG_JFS_FS=m
# CONFIG_JFS_POSIX_ACL is not set
CONFIG_JFS_SECURITY=y
CONFIG_JFS_DEBUG=y
CONFIG_JFS_STATISTICS=y
CONFIG_FS_POSIX_ACL=y
CONFIG_FILE_LOCKING=y
CONFIG_XFS_FS=m
# CONFIG_XFS_QUOTA is not set
CONFIG_XFS_POSIX_ACL=y
# CONFIG_XFS_RT is not set
CONFIG_XFS_DEBUG=y
CONFIG_GFS2_FS=y
CONFIG_GFS2_FS_LOCKING_DLM=y
CONFIG_OCFS2_FS=m
# CONFIG_OCFS2_FS_O2CB is not set
CONFIG_OCFS2_FS_USERSPACE_CLUSTER=m
# CONFIG_OCFS2_FS_STATS is not set
CONFIG_OCFS2_DEBUG_MASKLOG=y
CONFIG_OCFS2_DEBUG_FS=y
CONFIG_OCFS2_FS_POSIX_ACL=y
CONFIG_BTRFS_FS=y
# CONFIG_BTRFS_FS_POSIX_ACL is not set
CONFIG_DNOTIFY=y
CONFIG_INOTIFY=y
# CONFIG_INOTIFY_USER is not set
CONFIG_QUOTA=y
# CONFIG_QUOTA_NETLINK_INTERFACE is not set
# CONFIG_PRINT_QUOTA_WARNING is not set
CONFIG_QUOTA_TREE=m
CONFIG_QFMT_V1=m
CONFIG_QFMT_V2=m
CONFIG_QUOTACTL=y
CONFIG_AUTOFS_FS=y
# CONFIG_AUTOFS4_FS is not set
CONFIG_FUSE_FS=m

#
# CD-ROM/DVD Filesystems
#
CONFIG_ISO9660_FS=m
# CONFIG_JOLIET is not set
CONFIG_ZISOFS=y
CONFIG_UDF_FS=y
CONFIG_UDF_NLS=y

#
# DOS/FAT/NT Filesystems
#
CONFIG_FAT_FS=y
CONFIG_MSDOS_FS=y
CONFIG_VFAT_FS=y
CONFIG_FAT_DEFAULT_CODEPAGE=437
CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-1"
# CONFIG_NTFS_FS is not set

#
# Pseudo filesystems
#
CONFIG_PROC_FS=y
# CONFIG_PROC_KCORE is not set
# CONFIG_PROC_VMCORE is not set
CONFIG_PROC_SYSCTL=y
# CONFIG_PROC_PAGE_MONITOR is not set
CONFIG_SYSFS=y
CONFIG_TMPFS=y
# CONFIG_TMPFS_POSIX_ACL is not set
# CONFIG_HUGETLBFS is not set
# CONFIG_HUGETLB_PAGE is not set
CONFIG_CONFIGFS_FS=y
# CONFIG_MISC_FILESYSTEMS is not set
CONFIG_NETWORK_FILESYSTEMS=y
# CONFIG_NFS_FS is not set
CONFIG_NFSD=y
CONFIG_NFSD_V2_ACL=y
CONFIG_NFSD_V3=y
CONFIG_NFSD_V3_ACL=y
CONFIG_NFSD_V4=y
CONFIG_LOCKD=y
CONFIG_LOCKD_V4=y
CONFIG_EXPORTFS=y
CONFIG_NFS_ACL_SUPPORT=y
CONFIG_NFS_COMMON=y
CONFIG_SUNRPC=y
CONFIG_SUNRPC_GSS=y
CONFIG_SUNRPC_REGISTER_V4=y
CONFIG_RPCSEC_GSS_KRB5=y
CONFIG_RPCSEC_GSS_SPKM3=y
# CONFIG_SMB_FS is not set
# CONFIG_CIFS is not set
CONFIG_NCP_FS=m
CONFIG_NCPFS_PACKET_SIGNING=y
CONFIG_NCPFS_IOCTL_LOCKING=y
CONFIG_NCPFS_STRONG=y
# CONFIG_NCPFS_NFS_NS is not set
CONFIG_NCPFS_OS2_NS=y
CONFIG_NCPFS_SMALLDOS=y
CONFIG_NCPFS_NLS=y
CONFIG_NCPFS_EXTRAS=y
CONFIG_CODA_FS=m
CONFIG_AFS_FS=m
CONFIG_AFS_DEBUG=y

#
# Partition Types
#
CONFIG_PARTITION_ADVANCED=y
CONFIG_ACORN_PARTITION=y
CONFIG_ACORN_PARTITION_CUMANA=y
CONFIG_ACORN_PARTITION_EESOX=y
CONFIG_ACORN_PARTITION_ICS=y
CONFIG_ACORN_PARTITION_ADFS=y
CONFIG_ACORN_PARTITION_POWERTEC=y
# CONFIG_ACORN_PARTITION_RISCIX is not set
CONFIG_OSF_PARTITION=y
# CONFIG_AMIGA_PARTITION is not set
# CONFIG_ATARI_PARTITION is not set
CONFIG_MAC_PARTITION=y
CONFIG_MSDOS_PARTITION=y
CONFIG_BSD_DISKLABEL=y
CONFIG_MINIX_SUBPARTITION=y
# CONFIG_SOLARIS_X86_PARTITION is not set
CONFIG_UNIXWARE_DISKLABEL=y
CONFIG_LDM_PARTITION=y
# CONFIG_LDM_DEBUG is not set
CONFIG_SGI_PARTITION=y
CONFIG_ULTRIX_PARTITION=y
CONFIG_SUN_PARTITION=y
# CONFIG_KARMA_PARTITION is not set
CONFIG_EFI_PARTITION=y
# CONFIG_SYSV68_PARTITION is not set
CONFIG_NLS=y
CONFIG_NLS_DEFAULT="iso8859-1"
CONFIG_NLS_CODEPAGE_437=y
CONFIG_NLS_CODEPAGE_737=m
CONFIG_NLS_CODEPAGE_775=m
CONFIG_NLS_CODEPAGE_850=m
CONFIG_NLS_CODEPAGE_852=y
# CONFIG_NLS_CODEPAGE_855 is not set
CONFIG_NLS_CODEPAGE_857=y
CONFIG_NLS_CODEPAGE_860=y
CONFIG_NLS_CODEPAGE_861=y
CONFIG_NLS_CODEPAGE_862=y
CONFIG_NLS_CODEPAGE_863=m
CONFIG_NLS_CODEPAGE_864=y
# CONFIG_NLS_CODEPAGE_865 is not set
CONFIG_NLS_CODEPAGE_866=y
CONFIG_NLS_CODEPAGE_869=y
CONFIG_NLS_CODEPAGE_936=y
# CONFIG_NLS_CODEPAGE_950 is not set
CONFIG_NLS_CODEPAGE_932=m
CONFIG_NLS_CODEPAGE_949=m
# CONFIG_NLS_CODEPAGE_874 is not set
CONFIG_NLS_ISO8859_8=y
CONFIG_NLS_CODEPAGE_1250=m
# CONFIG_NLS_CODEPAGE_1251 is not set
CONFIG_NLS_ASCII=m
# CONFIG_NLS_ISO8859_1 is not set
CONFIG_NLS_ISO8859_2=m
# CONFIG_NLS_ISO8859_3 is not set
# CONFIG_NLS_ISO8859_4 is not set
# CONFIG_NLS_ISO8859_5 is not set
CONFIG_NLS_ISO8859_6=y
CONFIG_NLS_ISO8859_7=m
CONFIG_NLS_ISO8859_9=y
CONFIG_NLS_ISO8859_13=m
CONFIG_NLS_ISO8859_14=m
# CONFIG_NLS_ISO8859_15 is not set
CONFIG_NLS_KOI8_R=y
# CONFIG_NLS_KOI8_U is not set
# CONFIG_NLS_UTF8 is not set
CONFIG_DLM=y
CONFIG_DLM_DEBUG=y

#
# Kernel hacking
#
CONFIG_TRACE_IRQFLAGS_SUPPORT=y
# CONFIG_PRINTK_TIME is not set
CONFIG_ALLOW_WARNINGS=y
CONFIG_ENABLE_WARN_DEPRECATED=y
CONFIG_ENABLE_MUST_CHECK=y
CONFIG_FRAME_WARN=2048
CONFIG_MAGIC_SYSRQ=y
CONFIG_UNUSED_SYMBOLS=y
CONFIG_DEBUG_FS=y
CONFIG_HEADERS_CHECK=y
# CONFIG_DEBUG_KERNEL is not set
CONFIG_SCHED_DEBUG=y
CONFIG_SCHEDSTATS=y
CONFIG_STACKTRACE=y
CONFIG_DEBUG_MEMORY_INIT=y
CONFIG_ARCH_WANT_FRAME_POINTERS=y
CONFIG_FRAME_POINTER=y
CONFIG_RCU_CPU_STALL_DETECTOR=y
CONFIG_LATENCYTOP=y
CONFIG_SYSCTL_SYSCALL_CHECK=y
CONFIG_USER_STACKTRACE_SUPPORT=y
CONFIG_NOP_TRACER=y
CONFIG_HAVE_FUNCTION_TRACER=y
CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y
CONFIG_HAVE_FUNCTION_TRACE_MCOUNT_TEST=y
CONFIG_HAVE_DYNAMIC_FTRACE=y
CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y
CONFIG_HAVE_HW_BRANCH_TRACER=y
CONFIG_RING_BUFFER=y
CONFIG_TRACING=y

#
# Tracers
#
# CONFIG_SYSPROF_TRACER is not set
# CONFIG_HW_BRANCH_TRACER is not set
CONFIG_KMEMTRACE=y
CONFIG_WORKQUEUE_TRACER=y
CONFIG_BLK_DEV_IO_TRACE=y
CONFIG_PROVIDE_OHCI1394_DMA_INIT=y
CONFIG_BUILD_DOCSRC=y
CONFIG_DYNAMIC_PRINTK_DEBUG=y
CONFIG_SAMPLES=y
CONFIG_SAMPLE_TRACEPOINTS=m
CONFIG_SAMPLE_KOBJECT=m
# CONFIG_SAMPLE_KPROBES is not set
CONFIG_HAVE_ARCH_KGDB=y
# CONFIG_STRICT_DEVMEM is not set
CONFIG_X86_VERBOSE_BOOTUP=y
CONFIG_EARLY_PRINTK=y
CONFIG_EARLY_PRINTK_DBGP=y
CONFIG_HAVE_MMIOTRACE_SUPPORT=y
CONFIG_IO_DELAY_TYPE_0X80=0
CONFIG_IO_DELAY_TYPE_0XED=1
CONFIG_IO_DELAY_TYPE_UDELAY=2
CONFIG_IO_DELAY_TYPE_NONE=3
CONFIG_IO_DELAY_0X80=y
# CONFIG_IO_DELAY_0XED is not set
# CONFIG_IO_DELAY_UDELAY is not set
# CONFIG_IO_DELAY_NONE is not set
CONFIG_DEFAULT_IO_DELAY_TYPE=0
# CONFIG_OPTIMIZE_INLINING is not set

#
# Security options
#
CONFIG_KEYS=y
CONFIG_KEYS_DEBUG_PROC_KEYS=y
CONFIG_SECURITY=y
CONFIG_SECURITYFS=y
CONFIG_SECURITY_NETWORK=y
CONFIG_SECURITY_NETWORK_XFRM=y
CONFIG_SECURITY_PATH=y
CONFIG_SECURITY_FILE_CAPABILITIES=y
CONFIG_SECURITY_DEFAULT_MMAP_MIN_ADDR=0
# CONFIG_SECURITY_SELINUX is not set
CONFIG_CRYPTO=y

#
# Crypto core or helper
#
CONFIG_CRYPTO_FIPS=y
CONFIG_CRYPTO_ALGAPI=y
CONFIG_CRYPTO_ALGAPI2=y
CONFIG_CRYPTO_AEAD=y
CONFIG_CRYPTO_AEAD2=y
CONFIG_CRYPTO_BLKCIPHER=y
CONFIG_CRYPTO_BLKCIPHER2=y
CONFIG_CRYPTO_HASH=y
CONFIG_CRYPTO_HASH2=y
CONFIG_CRYPTO_RNG=y
CONFIG_CRYPTO_RNG2=y
CONFIG_CRYPTO_MANAGER=y
CONFIG_CRYPTO_MANAGER2=y
CONFIG_CRYPTO_GF128MUL=y
CONFIG_CRYPTO_NULL=m
CONFIG_CRYPTO_CRYPTD=y
CONFIG_CRYPTO_AUTHENC=y
CONFIG_CRYPTO_TEST=m

#
# Authenticated Encryption with Associated Data
#
CONFIG_CRYPTO_CCM=m
CONFIG_CRYPTO_GCM=y
CONFIG_CRYPTO_SEQIV=y

#
# Block modes
#
CONFIG_CRYPTO_CBC=y
CONFIG_CRYPTO_CTR=y
CONFIG_CRYPTO_CTS=y
CONFIG_CRYPTO_ECB=y
# CONFIG_CRYPTO_LRW is not set
CONFIG_CRYPTO_PCBC=y
CONFIG_CRYPTO_XTS=m

#
# Hash modes
#
CONFIG_CRYPTO_HMAC=y
CONFIG_CRYPTO_XCBC=y

#
# Digest
#
CONFIG_CRYPTO_CRC32C=y
# CONFIG_CRYPTO_CRC32C_INTEL is not set
CONFIG_CRYPTO_MD4=y
CONFIG_CRYPTO_MD5=y
CONFIG_CRYPTO_MICHAEL_MIC=m
CONFIG_CRYPTO_RMD128=m
CONFIG_CRYPTO_RMD160=m
CONFIG_CRYPTO_RMD256=m
CONFIG_CRYPTO_RMD320=y
CONFIG_CRYPTO_SHA1=y
CONFIG_CRYPTO_SHA256=m
# CONFIG_CRYPTO_SHA512 is not set
# CONFIG_CRYPTO_TGR192 is not set
CONFIG_CRYPTO_WP512=m

#
# Ciphers
#
CONFIG_CRYPTO_AES=y
# CONFIG_CRYPTO_AES_X86_64 is not set
CONFIG_CRYPTO_ANUBIS=y
CONFIG_CRYPTO_ARC4=y
# CONFIG_CRYPTO_BLOWFISH is not set
# CONFIG_CRYPTO_CAMELLIA is not set
CONFIG_CRYPTO_CAST5=y
# CONFIG_CRYPTO_CAST6 is not set
CONFIG_CRYPTO_DES=y
CONFIG_CRYPTO_FCRYPT=y
CONFIG_CRYPTO_KHAZAD=y
CONFIG_CRYPTO_SALSA20=y
CONFIG_CRYPTO_SALSA20_X86_64=y
CONFIG_CRYPTO_SEED=m
# CONFIG_CRYPTO_SERPENT is not set
CONFIG_CRYPTO_TEA=y
CONFIG_CRYPTO_TWOFISH=y
CONFIG_CRYPTO_TWOFISH_COMMON=y
CONFIG_CRYPTO_TWOFISH_X86_64=y

#
# Compression
#
CONFIG_CRYPTO_DEFLATE=y
# CONFIG_CRYPTO_LZO is not set

#
# Random Number Generation
#
CONFIG_CRYPTO_ANSI_CPRNG=y
CONFIG_CRYPTO_HW=y
# CONFIG_CRYPTO_DEV_HIFN_795X is not set
CONFIG_HAVE_KVM=y
# CONFIG_VIRTUALIZATION is not set

#
# Library routines
#
CONFIG_BITREVERSE=y
CONFIG_GENERIC_FIND_FIRST_BIT=y
CONFIG_GENERIC_FIND_NEXT_BIT=y
CONFIG_GENERIC_FIND_LAST_BIT=y
CONFIG_CRC_CCITT=m
CONFIG_CRC16=y
CONFIG_CRC_T10DIF=y
CONFIG_CRC_ITU_T=y
CONFIG_CRC32=y
# CONFIG_CRC7 is not set
CONFIG_LIBCRC32C=y
CONFIG_ZLIB_INFLATE=y
CONFIG_ZLIB_DEFLATE=y
CONFIG_TEXTSEARCH=y
CONFIG_TEXTSEARCH_KMP=y
CONFIG_TEXTSEARCH_BM=y
CONFIG_TEXTSEARCH_FSM=y
CONFIG_HAS_IOMEM=y
CONFIG_HAS_IOPORT=y
CONFIG_HAS_DMA=y
CONFIG_FORCE_SUCCESSFUL_BUILD=y
CONFIG_FORCE_MINIMAL_CONFIG=y
CONFIG_FORCE_MINIMAL_CONFIG_64=y
CONFIG_FORCE_MINIMAL_CONFIG_PHYS=y

Re: [PATCHSET x86/master] add stack protector support for x86_32

[Ingo Molnar]

* Brian Gerst <brgerst@gmail.com> wrote:

> On Mon, Feb 9, 2009 at 8:39 AM, Tejun Heo <tj@kernel.org> wrote:
> >
> > Hello,
> >
> > This patchset adds stack protector support for x86_32.  The basics are
> > the same with x86_64 but there are some noticeable differences.
> >
> > * x86_32 uses %fs for percpu base.  %gs is unused by the kernel and
> >  managed lazily.  %gs is used for userland TLS and loading %gs with
> >  different value on kernel entry is known to cost quite a bit on some
> >  chips.
> >
> >  Lazy %gs handling is made optional and disabled if stack protector
> >  is enabled.  To do this, entry for %gs is added to pt_regs.  This
> >  adds one "pushl $0" to SAVE_ALL in entry_32.S when lazy %gs is on.
> >  However, no overhead is added to common exit path and error_code
> >  entry path shed a few instructions.  I don't think there will be
> >  noticeable overhead but then again it does add an instruction to a
> >  very hot path.  Would this be okay?
> >
> > * x86_32 doesn't support direct access to shadow part of %gs and
> >  there's no swapgs, so GDT entry should be built for stack canary.
> >
> >  GDT entry 28 is used for this.  The boot cpu one is setup from
> >  head_32.S.  Others while setting up percpu areas.
> >
> > * math_emu register access was completely broken.  Fixed.
> >
> > * x86_32 exception handlers take register frame verbatim as struct
> >  pt_regs.  With -fstack-protector, gcc copies pt_regs into the
> >  callee's stack frame to put it after the stack canary.  Of course it
> >  doesn't copy back (as the callee owns the argument) and any change
> >  made to pt_regs is lost on return.  This is currently worked around
> >  by adding -fno-stack-protector to any file containing such
> >  functions.  We really need to teach gcc about the calling
> >  convention.
> 
> I had a patch a while back that would convert those function to take a
> pointer to pt_regs instead of assuming that the struct was passed by
> value. [...]

Yes, that's the right solution. Getting a new call convention recognized
is a 3 years timeframe project for a whole team of hackers. Adding a
pointer is a 30 minutes project for one good kernel hacker ;)

> [...]  I'll take a stab at reworking it on top of this series.

Cool!

	Ingo

Re: [PATCH 01/11] x86: include correct %gs in a.out core dump

[Jeremy Fitzhardinge]

Tejun Heo wrote:
> Impact: dump the correct %gs into a.out core dump
>
> aout_dump_thread() read %gs but didn't include it in core dump.  Fix
> it.
>
> Signed-off-by: Tejun Heo <tj@kernel.org>
> ---
>  arch/x86/include/asm/a.out-core.h |    4 +---
>  1 files changed, 1 insertions(+), 3 deletions(-)
>
> diff --git a/arch/x86/include/asm/a.out-core.h b/arch/x86/include/asm/a.out-core.h
> index 3782220..3c601f8 100644
> --- a/arch/x86/include/asm/a.out-core.h
> +++ b/arch/x86/include/asm/a.out-core.h
> @@ -23,8 +23,6 @@
>   */
>  static inline void aout_dump_thread(struct pt_regs *regs, struct user *dump)
>  {
> -	u16 gs;
> -
>  /* changed the size calculations - should hopefully work better. lbt */
>  	dump->magic = CMAGIC;
>  	dump->start_code = 0;
> @@ -57,7 +55,7 @@ static inline void aout_dump_thread(struct pt_regs *regs, struct user *dump)
>  	dump->regs.ds = (u16)regs->ds;
>  	dump->regs.es = (u16)regs->es;
>  	dump->regs.fs = (u16)regs->fs;
> -	savesegment(gs, gs);
> +	savesegment(gs, dump->regs.gs);
>   
Yes, that looks like a bit of mindless auto-conversion.

Acked-by: Jeremy Fitzhardinge <jeremy@goop.org>

    J

Re: [PATCH 03/11] x86: fix math_emu register frame access

[Brian Gerst]

On Mon, Feb 9, 2009 at 8:39 AM, Tejun Heo <tj@kernel.org> wrote:
> do_device_not_available() is the handler for #NM and it declares that
> it takes a unsigned long and calls math_emu(), which takes a long
> argument and surprisingly expects the stack frame starting at the zero
> argument would match struct math_emu_info, which isn't true regardless
> of configuration in the current code.
>
> This patch makes do_device_not_available() take struct pt_regs like
> other exception handlers and initialize struct math_emu_info with
> pointer to it and pass pointer to the math_emu_info to math_emulate()
> like normal C functions do.  This way, unless gcc makes a copy of
> struct pt_regs in do_device_not_available(), the register frame is
> correctly accessed regardless of kernel configuration or compiler
> used.
>
> This doesn't fix all math_emu problems but it at least gets it
> somewhat working.
>
> Signed-off-by: Tejun Heo <tj@kernel.org>
>
> diff --git a/arch/x86/kernel/traps.c b/arch/x86/kernel/traps.c
> index afb46c0..84bdf8f 100644
> --- a/arch/x86/kernel/traps.c
> +++ b/arch/x86/kernel/traps.c
> @@ -900,7 +900,7 @@ asmlinkage void math_state_restore(void)
>  EXPORT_SYMBOL_GPL(math_state_restore);
>
>  #ifndef CONFIG_MATH_EMULATION
> -asmlinkage void math_emulate(long arg)
> +void math_emulate(struct math_emu_info *info)

You forgot to drop the asmlinkage from the prototype in traps.h.

>  {
>        printk(KERN_EMERG
>                "math-emulation not enabled and no coprocessor found.\n");
> @@ -910,16 +910,19 @@ asmlinkage void math_emulate(long arg)
>  }
>  #endif /* CONFIG_MATH_EMULATION */
>
> -dotraplinkage void __kprobes
> -do_device_not_available(struct pt_regs *regs, long error)
> +dotraplinkage void __kprobes do_device_not_available(struct pt_regs regs)

Why did you change this to pass by value?  This is called from the
generic trap handler (error_code), which already passes the pt_regs
pointer in %eax.

--
Brian Gerst

Re: [PATCH 10/11] x86: make lazy %gs optional on x86_32

[Jeremy Fitzhardinge]

Tejun Heo wrote:
> Impact: pt_regs changed, lazy gs handling made optional, add slight
>         overhead to SAVE_ALL, simplifies error_code path a bit
>
> On x86_32, %gs hasn't been used by kernel and handled lazily.  pt_regs
> doesn't have place for it and gs is saved/loaded only when necessary.
> In preparation for stack protector support, this patch makes lazy %gs
> handling optional by doing the followings.
>
> * Add CONFIG_X86_32_LAZY_GS and place for gs in pt_regs.
>
> * Save and restore %gs along with other registers in entry_32.S unless
>   LAZY_GS.  Note that this unfortunately adds "pushl $0" on SAVE_ALL
>   even when LAZY_GS.  However, it adds no overhead to common exit path
>   and simplifies entry path with error code.
>   

I don't think it will make a measurable difference.  "subl $4, %esp" 
might be worth using too, or "lea -4(%esp), %esp" to avoid touching the 
flags.

> * Define different user_gs accessors depending on LAZY_GS and add
>   lazy_save_gs() and lazy_load_gs() which are noop if !LAZY_GS.  The
>   lazy_*_gs() ops are used to save, load and clear %gs lazily.
>
> * Define ELF_CORE_COPY_KERNEL_REGS() which always read %gs directly.
>
> xen and lguest changes need to be verified.
>
> Signed-off-by: Tejun Heo <tj@kernel.org>
> Cc: Jeremy Fitzhardinge <jeremy@xensource.com>
> Cc: Rusty Russell <rusty@rustcorp.com.au>
> ---
>  arch/x86/Kconfig                   |    4 +
>  arch/x86/include/asm/elf.h         |   15 ++++-
>  arch/x86/include/asm/mmu_context.h |    2 +-
>  arch/x86/include/asm/ptrace.h      |    4 +-
>  arch/x86/include/asm/system.h      |   12 +++-
>  arch/x86/kernel/asm-offsets_32.c   |    1 +
>  arch/x86/kernel/entry_32.S         |  132 ++++++++++++++++++++++++++++++-----
>  arch/x86/kernel/process_32.c       |    4 +-
>  arch/x86/kernel/ptrace.c           |    5 +-
>  arch/x86/lguest/boot.c             |    2 +-
>  arch/x86/xen/enlighten.c           |   17 +++--
>  11 files changed, 158 insertions(+), 40 deletions(-)
>
> diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
> index f9b3fde..e91093a 100644
> --- a/arch/x86/Kconfig
> +++ b/arch/x86/Kconfig
> @@ -196,6 +196,10 @@ config X86_TRAMPOLINE
>  	depends on SMP || (64BIT && ACPI_SLEEP)
>  	default y
>  
> +config X86_32_LAZY_GS
> +	def_bool y
> +	depends on X86_32
> +
>  config KTIME_SCALAR
>  	def_bool X86_32
>  source "init/Kconfig"
> diff --git a/arch/x86/include/asm/elf.h b/arch/x86/include/asm/elf.h
> index 39b0aac..83c1bc8 100644
> --- a/arch/x86/include/asm/elf.h
> +++ b/arch/x86/include/asm/elf.h
> @@ -112,7 +112,7 @@ extern unsigned int vdso_enabled;
>   * now struct_user_regs, they are different)
>   */
>  
> -#define ELF_CORE_COPY_REGS(pr_reg, regs)	\
> +#define ELF_CORE_COPY_REGS_COMMON(pr_reg, regs)	\
>  do {						\
>  	pr_reg[0] = regs->bx;			\
>  	pr_reg[1] = regs->cx;			\
> @@ -124,7 +124,6 @@ do {						\
>  	pr_reg[7] = regs->ds & 0xffff;		\
>  	pr_reg[8] = regs->es & 0xffff;		\
>  	pr_reg[9] = regs->fs & 0xffff;		\
> -	pr_reg[10] = get_user_gs(regs);		\
>  	pr_reg[11] = regs->orig_ax;		\
>  	pr_reg[12] = regs->ip;			\
>  	pr_reg[13] = regs->cs & 0xffff;		\
> @@ -133,6 +132,18 @@ do {						\
>  	pr_reg[16] = regs->ss & 0xffff;		\
>  } while (0);
>  
> +#define ELF_CORE_COPY_REGS(pr_reg, regs)	\
> +do {						\
> +	ELF_CORE_COPY_REGS_COMMON(pr_reg, regs);\
> +	pr_reg[10] = get_user_gs(regs);		\
> +} while (0);
> +
> +#define ELF_CORE_COPY_KERNEL_REGS(pr_reg, regs)	\
> +do {						\
> +	ELF_CORE_COPY_REGS_COMMON(pr_reg, regs);\
> +	savesegment(gs, pr_reg[10]);		\
> +} while (0);
> +
>  #define ELF_PLATFORM	(utsname()->machine)
>  #define set_personality_64bit()	do { } while (0)
>  
> diff --git a/arch/x86/include/asm/mmu_context.h b/arch/x86/include/asm/mmu_context.h
> index 4955165..f923203 100644
> --- a/arch/x86/include/asm/mmu_context.h
> +++ b/arch/x86/include/asm/mmu_context.h
> @@ -79,7 +79,7 @@ do {						\
>  #ifdef CONFIG_X86_32
>  #define deactivate_mm(tsk, mm)			\
>  do {						\
> -	set_user_gs(task_pt_regs(tsk), 0);	\
> +	lazy_load_gs(0);			\
>  } while (0)
>  #else
>  #define deactivate_mm(tsk, mm)			\
> diff --git a/arch/x86/include/asm/ptrace.h b/arch/x86/include/asm/ptrace.h
> index 6d34d95..e304b66 100644
> --- a/arch/x86/include/asm/ptrace.h
> +++ b/arch/x86/include/asm/ptrace.h
> @@ -28,7 +28,7 @@ struct pt_regs {
>  	int  xds;
>  	int  xes;
>  	int  xfs;
> -	/* int  gs; */
> +	int  xgs;
>  	long orig_eax;
>  	long eip;
>  	int  xcs;
> @@ -50,7 +50,7 @@ struct pt_regs {
>  	unsigned long ds;
>  	unsigned long es;
>  	unsigned long fs;
> -	/* int  gs; */
> +	unsigned long gs;
>  	unsigned long orig_ax;
>  	unsigned long ip;
>  	unsigned long cs;
> diff --git a/arch/x86/include/asm/system.h b/arch/x86/include/asm/system.h
> index 72082d3..e658bbe 100644
> --- a/arch/x86/include/asm/system.h
> +++ b/arch/x86/include/asm/system.h
> @@ -186,10 +186,20 @@ extern void native_load_gs_index(unsigned);
>   * x86_32 user gs accessors.
>   */
>  #ifdef CONFIG_X86_32
> +#ifdef CONFIG_X86_32_LAZY_GS
>  #define get_user_gs(regs)	(u16)({unsigned long v; savesegment(gs, v); v;})
>  #define set_user_gs(regs, v)	loadsegment(gs, (unsigned long)(v))
>  #define task_user_gs(tsk)	((tsk)->thread.gs)
> -#endif
> +#define lazy_save_gs(v)		savesegment(gs, (v))
> +#define lazy_load_gs(v)		loadsegment(gs, (v))
> +#else	/* X86_32_LAZY_GS */
> +#define get_user_gs(regs)	(u16)((regs)->gs)
> +#define set_user_gs(regs, v)	do { (regs)->gs = (v); } while (0)
> +#define task_user_gs(tsk)	(task_pt_regs(tsk)->gs)
> +#define lazy_save_gs(v)		do { } while (0)
> +#define lazy_load_gs(v)		do { } while (0)
> +#endif	/* X86_32_LAZY_GS */
> +#endif	/* X86_32 */
>  
>  static inline unsigned long get_limit(unsigned long segment)
>  {
> diff --git a/arch/x86/kernel/asm-offsets_32.c b/arch/x86/kernel/asm-offsets_32.c
> index ee4df08..fbf2f33 100644
> --- a/arch/x86/kernel/asm-offsets_32.c
> +++ b/arch/x86/kernel/asm-offsets_32.c
> @@ -75,6 +75,7 @@ void foo(void)
>  	OFFSET(PT_DS,  pt_regs, ds);
>  	OFFSET(PT_ES,  pt_regs, es);
>  	OFFSET(PT_FS,  pt_regs, fs);
> +	OFFSET(PT_GS,  pt_regs, gs);
>  	OFFSET(PT_ORIG_EAX, pt_regs, orig_ax);
>  	OFFSET(PT_EIP, pt_regs, ip);
>  	OFFSET(PT_CS,  pt_regs, cs);
> diff --git a/arch/x86/kernel/entry_32.S b/arch/x86/kernel/entry_32.S
> index 224739c..d3be889 100644
> --- a/arch/x86/kernel/entry_32.S
> +++ b/arch/x86/kernel/entry_32.S
> @@ -30,12 +30,13 @@
>   *	1C(%esp) - %ds
>   *	20(%esp) - %es
>   *	24(%esp) - %fs
> - *	28(%esp) - orig_eax
> - *	2C(%esp) - %eip
> - *	30(%esp) - %cs
> - *	34(%esp) - %eflags
> - *	38(%esp) - %oldesp
> - *	3C(%esp) - %oldss
> + *	28(%esp) - %gs		saved iff !CONFIG_X86_32_LAZY_GS
> + *	2C(%esp) - orig_eax
> + *	30(%esp) - %eip
> + *	34(%esp) - %cs
> + *	38(%esp) - %eflags
> + *	3C(%esp) - %oldesp
> + *	40(%esp) - %oldss
>   *
>   * "current" is in register %ebx during any slow entries.
>   */
> @@ -101,8 +102,99 @@
>  #define resume_userspace_sig	resume_userspace
>  #endif
>  
> +/*
> + * User gs save/restore
> + *
> + * %gs is used for userland TLS and kernel only uses it for stack
> + * canary which is required to be at %gs:20 by gcc.  Read the comment
> + * at the top of stackprotector.h for more info.
> + *
> + * Local labels 98 and 99 are used.
> + */
> +#ifdef CONFIG_X86_32_LAZY_GS
> +
> + /* unfortunately push/pop can't be no-op */
> +.macro PUSH_GS
> +	pushl $0
> +	CFI_ADJUST_CFA_OFFSET 4
> +.endm
> +.macro POP_GS pop=0
> +	addl $(4 + \pop), %esp
> +	CFI_ADJUST_CFA_OFFSET -(4 + \pop)
> +.endm
> +.macro POP_GS_EX
> +.endm
> +
> + /* all the rest are no-op */
> +.macro PTGS_TO_GS
> +.endm
> +.macro PTGS_TO_GS_EX
> +.endm
> +.macro GS_TO_REG reg
> +.endm
> +.macro REG_TO_PTGS reg
> +.endm
> +.macro SET_KERNEL_GS reg
> +.endm
> +
> +#else	/* CONFIG_X86_32_LAZY_GS */
> +
> +.macro PUSH_GS
> +	pushl %gs
> +	CFI_ADJUST_CFA_OFFSET 4
> +	/*CFI_REL_OFFSET gs, 0*/
> +.endm
> +
> +.macro POP_GS pop=0
> +98:	popl %gs
> +	CFI_ADJUST_CFA_OFFSET -4
> +	/*CFI_RESTORE gs*/
> +  .if \pop <> 0
> +	add $\pop, %esp
> +	CFI_ADJUST_CFA_OFFSET -\pop
> +  .endif
> +.endm
> +.macro POP_GS_EX
> +.pushsection .fixup, "ax"
> +99:	movl $0, (%esp)
> +	jmp 98b
> +.section __ex_table, "a"
> +	.align 4
> +	.long 98b, 99b
> +.popsection
>   

Why not just fold the exception block into the POP_GS macro?  I don't 
think they need to be separated (ditto other exception handlers).

> +.endm
> +
> +.macro PTGS_TO_GS
> +98:	mov PT_GS(%esp), %gs
> +.endm
> +.macro PTGS_TO_GS_EX
> +.pushsection .fixup, "ax"
> +99:	movl $0, PT_GS(%esp)
> +	jmp 98b
> +.section __ex_table, "a"
> +	.align 4
> +	.long 98b, 99b
> +.popsection
> +.endm
> +
> +.macro GS_TO_REG reg
> +	movl %gs, \reg
> +	/*CFI_REGISTER gs, \reg*/
> +.endm
> +.macro REG_TO_PTGS reg
> +	movl \reg, PT_GS(%esp)
> +	/*CFI_REL_OFFSET gs, PT_GS*/
> +.endm
> +.macro SET_KERNEL_GS reg
> +	xorl \reg, \reg
> +	movl \reg, %gs
> +.endm
> +
> +#endif	/* CONFIG_X86_32_LAZY_GS */
> +
>  .macro SAVE_ALL
>  	cld
> +	PUSH_GS
>  	pushl %fs
>  	CFI_ADJUST_CFA_OFFSET 4
>  	/*CFI_REL_OFFSET fs, 0;*/
> @@ -138,6 +230,7 @@
>  	movl %edx, %es
>  	movl $(__KERNEL_PERCPU), %edx
>  	movl %edx, %fs
> +	SET_KERNEL_GS %edx
>  .endm
>  
>  .macro RESTORE_INT_REGS
> @@ -164,7 +257,7 @@
>  	CFI_RESTORE eax
>  .endm
>  
> -.macro RESTORE_REGS
> +.macro RESTORE_REGS pop=0
>  	RESTORE_INT_REGS
>  1:	popl %ds
>  	CFI_ADJUST_CFA_OFFSET -4
> @@ -175,6 +268,7 @@
>  3:	popl %fs
>  	CFI_ADJUST_CFA_OFFSET -4
>  	/*CFI_RESTORE fs;*/
> +	POP_GS \pop
>  .pushsection .fixup, "ax"
>  4:	movl $0, (%esp)
>  	jmp 1b
> @@ -188,6 +282,7 @@
>  	.long 2b, 5b
>  	.long 3b, 6b
>  .popsection
> +	POP_GS_EX
>  .endm
>  
>  .macro RING0_INT_FRAME
> @@ -368,6 +463,7 @@ sysenter_exit:
>  	xorl %ebp,%ebp
>  	TRACE_IRQS_ON
>  1:	mov  PT_FS(%esp), %fs
> +	PTGS_TO_GS
>  	ENABLE_INTERRUPTS_SYSEXIT
>  
>  #ifdef CONFIG_AUDITSYSCALL
> @@ -416,6 +512,7 @@ sysexit_audit:
>  	.align 4
>  	.long 1b,2b
>  .popsection
> +	PTGS_TO_GS_EX
>  ENDPROC(ia32_sysenter_target)
>  
>  	# system call handler stub
> @@ -458,8 +555,7 @@ restore_all:
>  restore_nocheck:
>  	TRACE_IRQS_IRET
>  restore_nocheck_notrace:
> -	RESTORE_REGS
> -	addl $4, %esp			# skip orig_eax/error_code
> +	RESTORE_REGS 4			# skip orig_eax/error_code
>  	CFI_ADJUST_CFA_OFFSET -4
>  irq_return:
>  	INTERRUPT_RETURN
> @@ -1078,7 +1174,10 @@ ENTRY(page_fault)
>  	CFI_ADJUST_CFA_OFFSET 4
>  	ALIGN
>  error_code:
> -	/* the function address is in %fs's slot on the stack */
> +	/* the function address is in %gs's slot on the stack */
> +	pushl %fs
> +	CFI_ADJUST_CFA_OFFSET 4
> +	/*CFI_REL_OFFSET fs, 0*/
>  	pushl %es
>  	CFI_ADJUST_CFA_OFFSET 4
>  	/*CFI_REL_OFFSET es, 0*/
> @@ -1107,20 +1206,15 @@ error_code:
>  	CFI_ADJUST_CFA_OFFSET 4
>  	CFI_REL_OFFSET ebx, 0
>  	cld
> -	pushl %fs
> -	CFI_ADJUST_CFA_OFFSET 4
> -	/*CFI_REL_OFFSET fs, 0*/
>  	movl $(__KERNEL_PERCPU), %ecx
>  	movl %ecx, %fs
>  	UNWIND_ESPFIX_STACK
> -	popl %ecx
> -	CFI_ADJUST_CFA_OFFSET -4
> -	/*CFI_REGISTER es, ecx*/
> -	movl PT_FS(%esp), %edi		# get the function address
> +	GS_TO_REG %ecx
> +	movl PT_GS(%esp), %edi		# get the function address
>  	movl PT_ORIG_EAX(%esp), %edx	# get the error code
>  	movl $-1, PT_ORIG_EAX(%esp)	# no syscall to restart
> -	mov  %ecx, PT_FS(%esp)
> -	/*CFI_REL_OFFSET fs, ES*/
> +	REG_TO_PTGS %ecx
> +	SET_KERNEL_GS %ecx
>  	movl $(__USER_DS), %ecx
>  	movl %ecx, %ds
>  	movl %ecx, %es
> diff --git a/arch/x86/kernel/process_32.c b/arch/x86/kernel/process_32.c
> index 317d956..461d0a7 100644
> --- a/arch/x86/kernel/process_32.c
> +++ b/arch/x86/kernel/process_32.c
> @@ -537,7 +537,7 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p)
>  	 * used %fs or %gs (it does not today), or if the kernel is
>  	 * running inside of a hypervisor layer.
>  	 */
> -	savesegment(gs, prev->gs);
> +	lazy_save_gs(prev->gs);
>  
>  	/*
>  	 * Load the per-thread Thread-Local Storage descriptor.
> @@ -583,7 +583,7 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p)
>  	 * Restore %gs if needed (which is common)
>  	 */
>  	if (prev->gs | next->gs)
> -		loadsegment(gs, next->gs);
> +		lazy_load_gs(next->gs);
>  
>  	percpu_write(current_task, next_p);
>  
> diff --git a/arch/x86/kernel/ptrace.c b/arch/x86/kernel/ptrace.c
> index 508b6b5..7ec39ab 100644
> --- a/arch/x86/kernel/ptrace.c
> +++ b/arch/x86/kernel/ptrace.c
> @@ -75,10 +75,7 @@ static inline bool invalid_selector(u16 value)
>  static unsigned long *pt_regs_access(struct pt_regs *regs, unsigned long regno)
>  {
>  	BUILD_BUG_ON(offsetof(struct pt_regs, bx) != 0);
> -	regno >>= 2;
> -	if (regno > FS)
> -		--regno;
> -	return &regs->bx + regno;
> +	return &regs->bx + (regno >> 2);
>  }
>  
>  static u16 get_segment_reg(struct task_struct *task, unsigned long offset)
> diff --git a/arch/x86/lguest/boot.c b/arch/x86/lguest/boot.c
> index 19e33b6..da2e314 100644
> --- a/arch/x86/lguest/boot.c
> +++ b/arch/x86/lguest/boot.c
> @@ -283,7 +283,7 @@ static void lguest_load_tls(struct thread_struct *t, unsigned int cpu)
>  	/* There's one problem which normal hardware doesn't have: the Host
>  	 * can't handle us removing entries we're currently using.  So we clear
>  	 * the GS register here: if it's needed it'll be reloaded anyway. */
> -	loadsegment(gs, 0);
> +	lazy_load_gs(0);
>  	lazy_hcall(LHCALL_LOAD_TLS, __pa(&t->tls_array), cpu, 0);
>  }
>  
> diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
> index 3723034..95ff6a0 100644
> --- a/arch/x86/xen/enlighten.c
> +++ b/arch/x86/xen/enlighten.c
> @@ -323,13 +323,14 @@ static void load_TLS_descriptor(struct thread_struct *t,
>  static void xen_load_tls(struct thread_struct *t, unsigned int cpu)
>  {
>  	/*
> -	 * XXX sleazy hack: If we're being called in a lazy-cpu zone,
> -	 * it means we're in a context switch, and %gs has just been
> -	 * saved.  This means we can zero it out to prevent faults on
> -	 * exit from the hypervisor if the next process has no %gs.
> -	 * Either way, it has been saved, and the new value will get
> -	 * loaded properly.  This will go away as soon as Xen has been
> -	 * modified to not save/restore %gs for normal hypercalls.
> +	 * XXX sleazy hack: If we're being called in a lazy-cpu zone
> +	 * and lazy gs handling is enabled, it means we're in a
> +	 * context switch, and %gs has just been saved.  This means we
> +	 * can zero it out to prevent faults on exit from the
> +	 * hypervisor if the next process has no %gs.  Either way, it
> +	 * has been saved, and the new value will get loaded properly.
> +	 * This will go away as soon as Xen has been modified to not
> +	 * save/restore %gs for normal hypercalls.
>   

No, this change isn't quite right; the "and lazy gs handling is enabled" 
qualifier is wrong, because the condition the comment describes is 
independent of whether we're doing lazy gs handling.  This would be better:

    XXX sleazy hack: If we're being called in a lazy-cpu zone, it means
    we're in a context switch, and %gs has definitely been saved (just
    saved if we're doing lazy gs handling, and saved on entry if not).
    This means we can zero it out to prevent faults on exit from the
    hypervisor if the next process has no %gs. Either way, it has been
    saved, and the new value will get loaded properly. This will go away
    as soon as Xen has been modified to not save/restore %gs for normal
    hypercalls.


Thanks,
    J

Re: [PATCH 08/11] x86: use asm .macro instead of cpp #define in entry_32.S

[Jeremy Fitzhardinge]

Tejun Heo wrote:
> Impact: cleanup
>
> Use .macro instead of cpp #define where approriate.  This cleans up
> code and will ease future changes.
>   

I agree with this in principle - cpp macros are indeed very ugly - but 
in practise I've found asm macros to be very hard to work with.  When 
things go wrong, the gas error messages are completely useless (it only 
reports the error on the line where the macro was used, without any 
detail about where in the macro the problem lies), and as far as I know, 
there's no way to see the source with macros expanded.

    J

Re: [PATCHSET x86/master] add stack protector support for x86_32

[Ingo Molnar]

[-- Attachment #1: Type: text/plain, Size: 352 bytes --]


> Note that i spread the patches the following way: #001-003 are in tip:x86/urgent, 

FYI, -tip testing found this new build failure with MATH_EMU:

arch/x86/kernel/traps.c:904: error: conflicting types for 'math_emulate'
/home/mingo/tip/arch/x86/include/asm/traps.h:80: error: previous declaration of 'math_emulate' was here

config attached.

	Ingo

[-- Attachment #2: config --]
[-- Type: text/plain, Size: 72466 bytes --]

#
# Automatically generated make config: don't edit
# Linux kernel version: 2.6.29-rc4
# Mon Feb  9 19:38:34 2009
#
# CONFIG_64BIT is not set
CONFIG_X86_32=y
# CONFIG_X86_64 is not set
CONFIG_X86=y
CONFIG_ARCH_DEFCONFIG="arch/x86/configs/i386_defconfig"
CONFIG_GENERIC_TIME=y
CONFIG_GENERIC_CMOS_UPDATE=y
CONFIG_CLOCKSOURCE_WATCHDOG=y
CONFIG_GENERIC_CLOCKEVENTS=y
CONFIG_GENERIC_CLOCKEVENTS_BROADCAST=y
CONFIG_LOCKDEP_SUPPORT=y
CONFIG_STACKTRACE_SUPPORT=y
CONFIG_HAVE_LATENCYTOP_SUPPORT=y
CONFIG_FAST_CMPXCHG_LOCAL=y
CONFIG_MMU=y
CONFIG_ZONE_DMA=y
CONFIG_GENERIC_ISA_DMA=y
CONFIG_GENERIC_IOMAP=y
CONFIG_GENERIC_BUG=y
CONFIG_GENERIC_HWEIGHT=y
CONFIG_GENERIC_GPIO=y
CONFIG_ARCH_MAY_HAVE_PC_FDC=y
# CONFIG_RWSEM_GENERIC_SPINLOCK is not set
CONFIG_RWSEM_XCHGADD_ALGORITHM=y
CONFIG_ARCH_HAS_CPU_IDLE_WAIT=y
CONFIG_GENERIC_CALIBRATE_DELAY=y
# CONFIG_GENERIC_TIME_VSYSCALL is not set
CONFIG_ARCH_HAS_CPU_RELAX=y
CONFIG_ARCH_HAS_DEFAULT_IDLE=y
CONFIG_ARCH_HAS_CACHE_LINE_SIZE=y
CONFIG_HAVE_SETUP_PER_CPU_AREA=y
# CONFIG_HAVE_CPUMASK_OF_CPU_MAP is not set
CONFIG_ARCH_SUSPEND_POSSIBLE=y
# CONFIG_ZONE_DMA32 is not set
CONFIG_ARCH_POPULATES_NODE_MAP=y
# CONFIG_AUDIT_ARCH is not set
CONFIG_ARCH_SUPPORTS_OPTIMIZED_INLINING=y
CONFIG_GENERIC_HARDIRQS=y
CONFIG_GENERIC_IRQ_PROBE=y
CONFIG_GENERIC_PENDING_IRQ=y
CONFIG_USE_GENERIC_SMP_HELPERS=y
CONFIG_X86_32_SMP=y
CONFIG_X86_HT=y
CONFIG_X86_TRAMPOLINE=y
CONFIG_KTIME_SCALAR=y
CONFIG_BOOTPARAM_SUPPORT=y
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"

#
# General setup
#
CONFIG_EXPERIMENTAL=y
# CONFIG_BROKEN_BOOT_ALLOWED4 is not set
CONFIG_BROKEN_BOOT_EUROPE=y
CONFIG_BROKEN_BOOT_TITAN=y
CONFIG_LOCK_KERNEL=y
CONFIG_INIT_ENV_ARG_LIMIT=32
CONFIG_LOCALVERSION=""
# CONFIG_LOCALVERSION_AUTO is not set
CONFIG_SWAP=y
# CONFIG_SYSVIPC is not set
# CONFIG_POSIX_MQUEUE is not set
CONFIG_BSD_PROCESS_ACCT=y
CONFIG_BSD_PROCESS_ACCT_V3=y
CONFIG_TASKSTATS=y
CONFIG_TASK_DELAY_ACCT=y
# CONFIG_TASK_XACCT is not set
CONFIG_AUDIT=y
CONFIG_AUDITSYSCALL=y
CONFIG_AUDIT_TREE=y

#
# RCU Subsystem
#
CONFIG_CLASSIC_RCU=y
# CONFIG_TREE_RCU is not set
# CONFIG_PREEMPT_RCU is not set
# CONFIG_TREE_RCU_TRACE is not set
# CONFIG_PREEMPT_RCU_TRACE is not set
CONFIG_IKCONFIG=y
# CONFIG_IKCONFIG_PROC is not set
CONFIG_LOG_BUF_SHIFT=21
CONFIG_HAVE_UNSTABLE_SCHED_CLOCK=y
# CONFIG_GROUP_SCHED is not set
# CONFIG_BOOTPARAM_MAXCPUS_1 is not set
CONFIG_BOOTPARAM_NOSMP=y
CONFIG_CGROUPS=y
CONFIG_CGROUP_DEBUG=y
CONFIG_CGROUP_NS=y
CONFIG_CGROUP_FREEZER=y
# CONFIG_CGROUP_DEVICE is not set
CONFIG_CPUSETS=y
CONFIG_PROC_PID_CPUSET=y
# CONFIG_CGROUP_CPUACCT is not set
CONFIG_RESOURCE_COUNTERS=y
CONFIG_CGROUP_MEM_RES_CTLR=y
# CONFIG_CGROUP_MEM_RES_CTLR_SWAP is not set
CONFIG_MM_OWNER=y
CONFIG_SYSFS_DEPRECATED=y
CONFIG_SYSFS_DEPRECATED_V2=y
CONFIG_RELAY=y
CONFIG_NAMESPACES=y
CONFIG_UTS_NS=y
# CONFIG_USER_NS is not set
CONFIG_PID_NS=y
CONFIG_NET_NS=y
# CONFIG_BLK_DEV_INITRD is not set
CONFIG_CC_OPTIMIZE_FOR_SIZE=y
CONFIG_SYSCTL=y
CONFIG_EMBEDDED=y
CONFIG_UID16=y
CONFIG_SYSCTL_SYSCALL=y
CONFIG_KALLSYMS=y
# CONFIG_KALLSYMS_EXTRA_PASS is not set
CONFIG_HOTPLUG=y
CONFIG_PRINTK=y
CONFIG_BUG=y
CONFIG_ELF_CORE=y
CONFIG_PCSPKR_PLATFORM=y
CONFIG_COMPAT_BRK=y
CONFIG_BASE_FULL=y
CONFIG_FUTEX=y
CONFIG_ANON_INODES=y
CONFIG_EPOLL=y
CONFIG_SIGNALFD=y
# CONFIG_TIMERFD is not set
CONFIG_EVENTFD=y
CONFIG_SHMEM=y
CONFIG_AIO=y
CONFIG_HAVE_PERF_COUNTERS=y

#
# Performance Counters
#
CONFIG_PERF_COUNTERS=y
# CONFIG_VM_EVENT_COUNTERS is not set
CONFIG_PCI_QUIRKS=y
CONFIG_SLUB_DEBUG=y
# CONFIG_SLAB is not set
CONFIG_SLUB=y
# CONFIG_SLOB is not set
CONFIG_PROFILING=y
CONFIG_TRACEPOINTS=y
CONFIG_MARKERS=y
CONFIG_OPROFILE=y
CONFIG_OPROFILE_IBS=y
CONFIG_HAVE_OPROFILE=y
# CONFIG_KPROBES is not set
CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS=y
CONFIG_HAVE_IOREMAP_PROT=y
CONFIG_HAVE_KPROBES=y
CONFIG_HAVE_KRETPROBES=y
CONFIG_HAVE_ARCH_TRACEHOOK=y
CONFIG_HAVE_GENERIC_DMA_COHERENT=y
CONFIG_SLABINFO=y
CONFIG_RT_MUTEXES=y
CONFIG_BASE_SMALL=0
CONFIG_MODULES=y
# CONFIG_MODULE_FORCE_LOAD is not set
CONFIG_MODULE_UNLOAD=y
CONFIG_MODULE_FORCE_UNLOAD=y
# CONFIG_MODVERSIONS is not set
CONFIG_MODULE_SRCVERSION_ALL=y
CONFIG_STOP_MACHINE=y
CONFIG_BLOCK=y
CONFIG_LBD=y
CONFIG_BLK_DEV_BSG=y
# CONFIG_BLK_DEV_INTEGRITY is not set

#
# IO Schedulers
#
CONFIG_IOSCHED_NOOP=y
CONFIG_IOSCHED_AS=m
CONFIG_IOSCHED_DEADLINE=y
CONFIG_IOSCHED_CFQ=y
# CONFIG_DEFAULT_AS is not set
# CONFIG_DEFAULT_DEADLINE is not set
CONFIG_DEFAULT_CFQ=y
# CONFIG_DEFAULT_NOOP is not set
CONFIG_DEFAULT_IOSCHED="cfq"
CONFIG_FREEZER=y

#
# Processor type and features
#
CONFIG_TICK_ONESHOT=y
# CONFIG_NO_HZ is not set
CONFIG_BOOTPARAM_NO_HZ_OFF=y
CONFIG_HIGH_RES_TIMERS=y
CONFIG_GENERIC_CLOCKEVENTS_BUILD=y
# CONFIG_BOOTPARAM_HIGHRES_OFF is not set
CONFIG_SMP_SUPPORT=y
CONFIG_SPARSE_IRQ=y
CONFIG_X86_MPPARSE=y
CONFIG_X86_BIGSMP=y
# CONFIG_X86_NON_STANDARD is not set
# CONFIG_SCHED_OMIT_FRAME_POINTER is not set
# CONFIG_PARAVIRT_GUEST is not set
CONFIG_MEMTEST=y
# CONFIG_M386 is not set
# CONFIG_M486 is not set
# CONFIG_M586 is not set
# CONFIG_M586TSC is not set
# CONFIG_M586MMX is not set
CONFIG_M686=y
# CONFIG_MPENTIUMII is not set
# CONFIG_MPENTIUMIII is not set
# CONFIG_MPENTIUMM is not set
# CONFIG_MPENTIUM4 is not set
# CONFIG_MK6 is not set
# CONFIG_MK7 is not set
# CONFIG_MK8 is not set
# CONFIG_MCRUSOE is not set
# CONFIG_MEFFICEON is not set
# CONFIG_MWINCHIPC6 is not set
# CONFIG_MWINCHIP3D is not set
# CONFIG_MGEODEGX1 is not set
# CONFIG_MGEODE_LX is not set
# CONFIG_MCYRIXIII is not set
# CONFIG_MVIAC3_2 is not set
# CONFIG_MVIAC7 is not set
# CONFIG_MPSC is not set
# CONFIG_MCORE2 is not set
# CONFIG_GENERIC_CPU is not set
CONFIG_X86_GENERIC=y
CONFIG_X86_CPU=y
CONFIG_X86_L1_CACHE_BYTES=64
CONFIG_X86_INTERNODE_CACHE_BYTES=64
CONFIG_X86_CMPXCHG=y
CONFIG_X86_L1_CACHE_SHIFT=5
CONFIG_X86_XADD=y
CONFIG_X86_PPRO_FENCE=y
CONFIG_X86_WP_WORKS_OK=y
CONFIG_X86_INVLPG=y
CONFIG_X86_BSWAP=y
CONFIG_X86_POPAD_OK=y
CONFIG_X86_INTEL_USERCOPY=y
CONFIG_X86_USE_PPRO_CHECKSUM=y
CONFIG_X86_TSC=y
CONFIG_X86_CMOV=y
CONFIG_X86_MINIMUM_CPU_FAMILY=4
CONFIG_X86_DEBUGCTLMSR=y
# CONFIG_PROCESSOR_SELECT is not set
CONFIG_CPU_SUP_INTEL=y
CONFIG_CPU_SUP_CYRIX_32=y
CONFIG_CPU_SUP_AMD=y
CONFIG_CPU_SUP_CENTAUR_32=y
CONFIG_CPU_SUP_TRANSMETA_32=y
CONFIG_CPU_SUP_UMC_32=y
CONFIG_X86_DS=y
CONFIG_X86_PTRACE_BTS=y
CONFIG_HPET_TIMER=y
CONFIG_HPET_EMULATE_RTC=y
CONFIG_DMI=y
# CONFIG_IOMMU_HELPER is not set
# CONFIG_IOMMU_API is not set
CONFIG_NR_CPUS=32
# CONFIG_SCHED_SMT is not set
# CONFIG_SCHED_MC is not set
CONFIG_PREEMPT_NONE=y
# CONFIG_PREEMPT_VOLUNTARY is not set
# CONFIG_PREEMPT is not set
CONFIG_X86_LOCAL_APIC=y
CONFIG_X86_IO_APIC=y
CONFIG_X86_REROUTE_FOR_BROKEN_BOOT_IRQS=y
CONFIG_X86_MCE=y
CONFIG_X86_MCE_NONFATAL=m
CONFIG_X86_MCE_P4THERMAL=y
CONFIG_VM86=y
CONFIG_TOSHIBA=m
CONFIG_I8K=m
CONFIG_X86_REBOOTFIXUPS=y
CONFIG_MICROCODE=m
CONFIG_MICROCODE_INTEL=y
CONFIG_MICROCODE_AMD=y
CONFIG_MICROCODE_OLD_INTERFACE=y
CONFIG_X86_MSR=y
CONFIG_X86_CPUID=m
CONFIG_UP_WANTED_1=y
CONFIG_UP_WANTED_2=y
CONFIG_UP_WANTED=y
CONFIG_SMP=y
# CONFIG_NOHIGHMEM is not set
CONFIG_HIGHMEM4G=y
# CONFIG_HIGHMEM64G is not set
CONFIG_VMSPLIT_3G=y
# CONFIG_VMSPLIT_3G_OPT is not set
# CONFIG_VMSPLIT_2G is not set
# CONFIG_VMSPLIT_2G_OPT is not set
# CONFIG_VMSPLIT_1G is not set
CONFIG_PAGE_OFFSET=0xC0000000
CONFIG_HIGHMEM=y
# CONFIG_ARCH_PHYS_ADDR_T_64BIT is not set
CONFIG_ARCH_FLATMEM_ENABLE=y
CONFIG_ARCH_SPARSEMEM_ENABLE=y
CONFIG_ARCH_SELECT_MEMORY_MODEL=y
CONFIG_ILLEGAL_POINTER_VALUE=0
CONFIG_SELECT_MEMORY_MODEL=y
CONFIG_FLATMEM_MANUAL=y
# CONFIG_DISCONTIGMEM_MANUAL is not set
# CONFIG_SPARSEMEM_MANUAL is not set
CONFIG_FLATMEM=y
CONFIG_FLAT_NODE_MEM_MAP=y
CONFIG_SPARSEMEM_STATIC=y
CONFIG_PAGEFLAGS_EXTENDED=y
CONFIG_SPLIT_PTLOCK_CPUS=4
# CONFIG_PHYS_ADDR_T_64BIT is not set
CONFIG_ZONE_DMA_FLAG=1
CONFIG_BOUNCE=y
CONFIG_VIRT_TO_BUS=y
CONFIG_UNEVICTABLE_LRU=y
CONFIG_HIGHPTE=y
# CONFIG_X86_CHECK_BIOS_CORRUPTION is not set
CONFIG_X86_RESERVE_LOW_64K=y
# CONFIG_MATH_EMULATION is not set
CONFIG_MTRR=y
CONFIG_MTRR_SANITIZER=y
CONFIG_MTRR_SANITIZER_ENABLE_DEFAULT=0
CONFIG_MTRR_SANITIZER_SPARE_REG_NR_DEFAULT=1
# CONFIG_X86_PAT is not set
CONFIG_SECCOMP=y
# CONFIG_HZ_100 is not set
CONFIG_HZ_250=y
# CONFIG_HZ_300 is not set
# CONFIG_HZ_1000 is not set
CONFIG_HZ=250
CONFIG_SCHED_HRTICK=y
CONFIG_KEXEC=y
# CONFIG_CRASH_DUMP is not set
CONFIG_PHYSICAL_START=0x100000
# CONFIG_RELOCATABLE is not set
CONFIG_PHYSICAL_ALIGN=0x100000
# CONFIG_HOTPLUG_CPU is not set
CONFIG_COMPAT_VDSO=y
CONFIG_CMDLINE_BOOL=y
CONFIG_CMDLINE=""
CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y

#
# Power management and ACPI options
#
# CONFIG_PM is not set

#
# CPU Frequency scaling
#
CONFIG_CPU_FREQ=y
CONFIG_CPU_FREQ_TABLE=y
CONFIG_CPU_FREQ_DEBUG=y
CONFIG_CPU_FREQ_STAT=y
CONFIG_CPU_FREQ_STAT_DETAILS=y
CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE=y
# CONFIG_CPU_FREQ_DEFAULT_GOV_POWERSAVE is not set
# CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE is not set
# CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND is not set
# CONFIG_CPU_FREQ_DEFAULT_GOV_CONSERVATIVE is not set
CONFIG_CPU_FREQ_GOV_PERFORMANCE=y
CONFIG_CPU_FREQ_GOV_POWERSAVE=m
# CONFIG_CPU_FREQ_GOV_USERSPACE is not set
CONFIG_CPU_FREQ_GOV_ONDEMAND=m
# CONFIG_CPU_FREQ_GOV_CONSERVATIVE is not set

#
# CPUFreq processor drivers
#
CONFIG_X86_POWERNOW_K6=y
CONFIG_X86_POWERNOW_K7=y
CONFIG_X86_POWERNOW_K8=m
# CONFIG_X86_GX_SUSPMOD is not set
CONFIG_X86_SPEEDSTEP_CENTRINO=m
CONFIG_X86_SPEEDSTEP_CENTRINO_TABLE=y
# CONFIG_X86_SPEEDSTEP_ICH is not set
CONFIG_X86_SPEEDSTEP_SMI=y
# CONFIG_X86_P4_CLOCKMOD is not set
# CONFIG_X86_CPUFREQ_NFORCE2 is not set
CONFIG_X86_LONGRUN=y
CONFIG_X86_E_POWERSAVER=m

#
# shared options
#
CONFIG_X86_SPEEDSTEP_LIB=y
CONFIG_X86_SPEEDSTEP_RELAXED_CAP_CHECK=y
CONFIG_CPU_IDLE=y
CONFIG_CPU_IDLE_GOV_LADDER=y
CONFIG_BOOTPARAM_NMI_WATCHDOG_BIT_0=y
CONFIG_BOOTPARAM_NOAPIC=y
# CONFIG_BOOTPARAM_NOLAPIC_TIMER is not set
CONFIG_BOOTPARAM_LAPIC=y
CONFIG_BOOTPARAM_HPET_DISABLE=y
CONFIG_BOOTPARAM_IDLE_MWAIT=y
CONFIG_BOOTPARAM_IDLE_POLL=y
CONFIG_BOOTPARAM_HIGHMEM_512M=y
CONFIG_BOOTPARAM_NOPAT=y
CONFIG_BOOTPARAM_NOTSC=y
# CONFIG_BOOTPARAM_PCI_NOMSI is not set

#
# Bus options (PCI etc.)
#
CONFIG_PCI=y
# CONFIG_PCI_GOBIOS is not set
# CONFIG_PCI_GOMMCONFIG is not set
# CONFIG_PCI_GODIRECT is not set
# CONFIG_PCI_GOOLPC is not set
CONFIG_PCI_GOANY=y
CONFIG_PCI_BIOS=y
CONFIG_PCI_DIRECT=y
CONFIG_PCI_OLPC=y
CONFIG_PCI_DOMAINS=y
CONFIG_PCIEPORTBUS=y
# CONFIG_HOTPLUG_PCI_PCIE is not set
# CONFIG_PCIEAER is not set
# CONFIG_PCIEASPM is not set
CONFIG_ARCH_SUPPORTS_MSI=y
CONFIG_PCI_MSI=y
CONFIG_PCI_LEGACY=y
CONFIG_PCI_STUB=m
CONFIG_HT_IRQ=y
CONFIG_ISA_DMA_API=y
CONFIG_ISA=y
CONFIG_EISA=y
# CONFIG_EISA_VLB_PRIMING is not set
CONFIG_EISA_PCI_EISA=y
CONFIG_EISA_VIRTUAL_ROOT=y
CONFIG_EISA_NAMES=y
CONFIG_MCA=y
CONFIG_MCA_LEGACY=y
CONFIG_MCA_PROC_FS=y
CONFIG_SCx200=y
CONFIG_SCx200HR_TIMER=m
CONFIG_OLPC=y
CONFIG_K8_NB=y
CONFIG_PCCARD=m
CONFIG_PCMCIA_DEBUG=y
CONFIG_PCMCIA=m
# CONFIG_PCMCIA_LOAD_CIS is not set
CONFIG_PCMCIA_IOCTL=y
CONFIG_CARDBUS=y

#
# PC-card bridges
#
# CONFIG_YENTA is not set
CONFIG_PD6729=m
CONFIG_I82092=m
# CONFIG_I82365 is not set
# CONFIG_TCIC is not set
CONFIG_PCMCIA_PROBE=y
CONFIG_PCCARD_NONSTATIC=m
CONFIG_HOTPLUG_PCI=y
# CONFIG_HOTPLUG_PCI_FAKE is not set
CONFIG_HOTPLUG_PCI_COMPAQ=m
CONFIG_HOTPLUG_PCI_COMPAQ_NVRAM=y
# CONFIG_HOTPLUG_PCI_IBM is not set
CONFIG_HOTPLUG_PCI_CPCI=y
CONFIG_HOTPLUG_PCI_CPCI_ZT5550=y
CONFIG_HOTPLUG_PCI_CPCI_GENERIC=y
CONFIG_HOTPLUG_PCI_SHPC=y

#
# Executable file formats / Emulations
#
CONFIG_BINFMT_ELF=y
CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS=y
CONFIG_HAVE_AOUT=y
CONFIG_BINFMT_AOUT=m
CONFIG_BINFMT_MISC=y
CONFIG_HAVE_ATOMIC_IOMAP=y
CONFIG_NET=y

#
# Networking options
#
CONFIG_COMPAT_NET_DEV_OPS=y
CONFIG_PACKET=y
CONFIG_PACKET_MMAP=y
CONFIG_UNIX=y
CONFIG_XFRM=y
CONFIG_XFRM_USER=m
CONFIG_XFRM_SUB_POLICY=y
# CONFIG_XFRM_MIGRATE is not set
CONFIG_XFRM_STATISTICS=y
CONFIG_XFRM_IPCOMP=y
CONFIG_NET_KEY=m
# CONFIG_NET_KEY_MIGRATE is not set
CONFIG_INET=y
CONFIG_IP_MULTICAST=y
# CONFIG_IP_ADVANCED_ROUTER is not set
CONFIG_IP_FIB_HASH=y
CONFIG_IP_PNP=y
CONFIG_IP_PNP_DHCP=y
CONFIG_IP_PNP_BOOTP=y
CONFIG_IP_PNP_RARP=y
CONFIG_NET_IPIP=m
# CONFIG_NET_IPGRE is not set
# CONFIG_IP_MROUTE is not set
CONFIG_ARPD=y
# CONFIG_SYN_COOKIES is not set
# CONFIG_INET_AH is not set
CONFIG_INET_ESP=y
# CONFIG_INET_IPCOMP is not set
# CONFIG_INET_XFRM_TUNNEL is not set
CONFIG_INET_TUNNEL=y
# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET_XFRM_MODE_TUNNEL is not set
CONFIG_INET_XFRM_MODE_BEET=y
CONFIG_INET_LRO=y
# CONFIG_INET_DIAG is not set
CONFIG_TCP_CONG_ADVANCED=y
CONFIG_TCP_CONG_BIC=m
# CONFIG_TCP_CONG_CUBIC is not set
CONFIG_TCP_CONG_WESTWOOD=y
CONFIG_TCP_CONG_HTCP=y
CONFIG_TCP_CONG_HSTCP=m
CONFIG_TCP_CONG_HYBLA=y
CONFIG_TCP_CONG_VEGAS=y
CONFIG_TCP_CONG_SCALABLE=y
CONFIG_TCP_CONG_LP=y
CONFIG_TCP_CONG_VENO=y
# CONFIG_TCP_CONG_YEAH is not set
CONFIG_TCP_CONG_ILLINOIS=m
# CONFIG_DEFAULT_BIC is not set
# CONFIG_DEFAULT_CUBIC is not set
CONFIG_DEFAULT_HTCP=y
# CONFIG_DEFAULT_VEGAS is not set
# CONFIG_DEFAULT_WESTWOOD is not set
# CONFIG_DEFAULT_RENO is not set
CONFIG_DEFAULT_TCP_CONG="htcp"
# CONFIG_TCP_MD5SIG is not set
CONFIG_IPV6=y
CONFIG_IPV6_PRIVACY=y
CONFIG_IPV6_ROUTER_PREF=y
# CONFIG_IPV6_ROUTE_INFO is not set
CONFIG_IPV6_OPTIMISTIC_DAD=y
CONFIG_INET6_AH=y
# CONFIG_INET6_ESP is not set
CONFIG_INET6_IPCOMP=y
CONFIG_IPV6_MIP6=m
CONFIG_INET6_XFRM_TUNNEL=y
CONFIG_INET6_TUNNEL=y
CONFIG_INET6_XFRM_MODE_TRANSPORT=y
# CONFIG_INET6_XFRM_MODE_TUNNEL is not set
CONFIG_INET6_XFRM_MODE_BEET=y
# CONFIG_INET6_XFRM_MODE_ROUTEOPTIMIZATION is not set
CONFIG_IPV6_SIT=y
CONFIG_IPV6_NDISC_NODETYPE=y
CONFIG_IPV6_TUNNEL=m
CONFIG_IPV6_MULTIPLE_TABLES=y
CONFIG_IPV6_SUBTREES=y
CONFIG_IPV6_MROUTE=y
CONFIG_IPV6_PIMSM_V2=y
CONFIG_NETLABEL=y
# CONFIG_NETWORK_SECMARK is not set
CONFIG_NETFILTER=y
# CONFIG_NETFILTER_DEBUG is not set
CONFIG_NETFILTER_ADVANCED=y
CONFIG_BRIDGE_NETFILTER=y

#
# Core Netfilter Configuration
#
CONFIG_NETFILTER_NETLINK=y
CONFIG_NETFILTER_NETLINK_QUEUE=m
CONFIG_NETFILTER_NETLINK_LOG=y
# CONFIG_NF_CONNTRACK is not set
CONFIG_NETFILTER_XTABLES=y
# CONFIG_NETFILTER_XT_TARGET_CLASSIFY is not set
# CONFIG_NETFILTER_XT_TARGET_DSCP is not set
CONFIG_NETFILTER_XT_TARGET_MARK=m
CONFIG_NETFILTER_XT_TARGET_NFLOG=y
CONFIG_NETFILTER_XT_TARGET_NFQUEUE=y
# CONFIG_NETFILTER_XT_TARGET_RATEEST is not set
# CONFIG_NETFILTER_XT_TARGET_TCPMSS is not set
CONFIG_NETFILTER_XT_TARGET_TCPOPTSTRIP=m
CONFIG_NETFILTER_XT_MATCH_COMMENT=y
CONFIG_NETFILTER_XT_MATCH_DCCP=m
CONFIG_NETFILTER_XT_MATCH_DSCP=m
CONFIG_NETFILTER_XT_MATCH_ESP=m
CONFIG_NETFILTER_XT_MATCH_HASHLIMIT=m
CONFIG_NETFILTER_XT_MATCH_IPRANGE=m
# CONFIG_NETFILTER_XT_MATCH_LENGTH is not set
CONFIG_NETFILTER_XT_MATCH_LIMIT=m
CONFIG_NETFILTER_XT_MATCH_MAC=m
CONFIG_NETFILTER_XT_MATCH_MARK=m
# CONFIG_NETFILTER_XT_MATCH_MULTIPORT is not set
# CONFIG_NETFILTER_XT_MATCH_OWNER is not set
CONFIG_NETFILTER_XT_MATCH_POLICY=m
# CONFIG_NETFILTER_XT_MATCH_PHYSDEV is not set
CONFIG_NETFILTER_XT_MATCH_PKTTYPE=m
# CONFIG_NETFILTER_XT_MATCH_QUOTA is not set
# CONFIG_NETFILTER_XT_MATCH_RATEEST is not set
# CONFIG_NETFILTER_XT_MATCH_REALM is not set
CONFIG_NETFILTER_XT_MATCH_RECENT=y
# CONFIG_NETFILTER_XT_MATCH_RECENT_PROC_COMPAT is not set
# CONFIG_NETFILTER_XT_MATCH_SCTP is not set
CONFIG_NETFILTER_XT_MATCH_STATISTIC=y
# CONFIG_NETFILTER_XT_MATCH_STRING is not set
CONFIG_NETFILTER_XT_MATCH_TCPMSS=m
# CONFIG_NETFILTER_XT_MATCH_TIME is not set
# CONFIG_NETFILTER_XT_MATCH_U32 is not set
# CONFIG_IP_VS is not set

#
# IP: Netfilter Configuration
#
# CONFIG_NF_DEFRAG_IPV4 is not set
# CONFIG_IP_NF_QUEUE is not set
CONFIG_IP_NF_IPTABLES=y
CONFIG_IP_NF_MATCH_ADDRTYPE=m
CONFIG_IP_NF_MATCH_AH=m
CONFIG_IP_NF_MATCH_ECN=y
CONFIG_IP_NF_MATCH_TTL=m
CONFIG_IP_NF_FILTER=y
CONFIG_IP_NF_TARGET_REJECT=y
# CONFIG_IP_NF_TARGET_LOG is not set
# CONFIG_IP_NF_TARGET_ULOG is not set
# CONFIG_IP_NF_MANGLE is not set
# CONFIG_IP_NF_RAW is not set
# CONFIG_IP_NF_SECURITY is not set
CONFIG_IP_NF_ARPTABLES=m
CONFIG_IP_NF_ARPFILTER=m
# CONFIG_IP_NF_ARP_MANGLE is not set

#
# IPv6: Netfilter Configuration
#
CONFIG_IP6_NF_QUEUE=m
CONFIG_IP6_NF_IPTABLES=m
CONFIG_IP6_NF_MATCH_AH=m
# CONFIG_IP6_NF_MATCH_EUI64 is not set
CONFIG_IP6_NF_MATCH_FRAG=m
CONFIG_IP6_NF_MATCH_OPTS=m
# CONFIG_IP6_NF_MATCH_HL is not set
CONFIG_IP6_NF_MATCH_IPV6HEADER=m
CONFIG_IP6_NF_MATCH_MH=m
CONFIG_IP6_NF_MATCH_RT=m
CONFIG_IP6_NF_TARGET_LOG=m
CONFIG_IP6_NF_FILTER=m
CONFIG_IP6_NF_TARGET_REJECT=m
CONFIG_IP6_NF_MANGLE=m
CONFIG_IP6_NF_TARGET_HL=m
# CONFIG_IP6_NF_RAW is not set
CONFIG_IP6_NF_SECURITY=m

#
# DECnet: Netfilter Configuration
#
CONFIG_DECNET_NF_GRABULATOR=m
CONFIG_BRIDGE_NF_EBTABLES=y
CONFIG_BRIDGE_EBT_BROUTE=y
# CONFIG_BRIDGE_EBT_T_FILTER is not set
# CONFIG_BRIDGE_EBT_T_NAT is not set
CONFIG_BRIDGE_EBT_802_3=y
# CONFIG_BRIDGE_EBT_AMONG is not set
CONFIG_BRIDGE_EBT_ARP=m
CONFIG_BRIDGE_EBT_IP=y
# CONFIG_BRIDGE_EBT_IP6 is not set
# CONFIG_BRIDGE_EBT_LIMIT is not set
CONFIG_BRIDGE_EBT_MARK=m
CONFIG_BRIDGE_EBT_PKTTYPE=y
# CONFIG_BRIDGE_EBT_STP is not set
CONFIG_BRIDGE_EBT_VLAN=m
CONFIG_BRIDGE_EBT_ARPREPLY=m
CONFIG_BRIDGE_EBT_DNAT=y
CONFIG_BRIDGE_EBT_MARK_T=m
CONFIG_BRIDGE_EBT_REDIRECT=m
CONFIG_BRIDGE_EBT_SNAT=y
CONFIG_BRIDGE_EBT_LOG=m
# CONFIG_BRIDGE_EBT_ULOG is not set
# CONFIG_BRIDGE_EBT_NFLOG is not set
CONFIG_IP_DCCP=m

#
# DCCP CCIDs Configuration (EXPERIMENTAL)
#
CONFIG_IP_DCCP_CCID2_DEBUG=y
CONFIG_IP_DCCP_CCID3=y
CONFIG_IP_DCCP_CCID3_DEBUG=y
CONFIG_IP_DCCP_CCID3_RTO=100
CONFIG_IP_DCCP_TFRC_LIB=y
CONFIG_IP_DCCP_TFRC_DEBUG=y
CONFIG_IP_SCTP=y
CONFIG_SCTP_DBG_MSG=y
# CONFIG_SCTP_DBG_OBJCNT is not set
# CONFIG_SCTP_HMAC_NONE is not set
# CONFIG_SCTP_HMAC_SHA1 is not set
CONFIG_SCTP_HMAC_MD5=y
CONFIG_TIPC=m
CONFIG_TIPC_ADVANCED=y
CONFIG_TIPC_ZONES=3
CONFIG_TIPC_CLUSTERS=1
CONFIG_TIPC_NODES=255
CONFIG_TIPC_SLAVE_NODES=0
CONFIG_TIPC_PORTS=8191
CONFIG_TIPC_LOG=0
CONFIG_TIPC_DEBUG=y
CONFIG_ATM=y
# CONFIG_ATM_CLIP is not set
# CONFIG_ATM_LANE is not set
CONFIG_ATM_BR2684=y
CONFIG_ATM_BR2684_IPFILTER=y
CONFIG_STP=y
CONFIG_GARP=y
CONFIG_BRIDGE=y
CONFIG_NET_DSA=y
# CONFIG_NET_DSA_TAG_DSA is not set
# CONFIG_NET_DSA_TAG_EDSA is not set
CONFIG_NET_DSA_TAG_TRAILER=y
# CONFIG_NET_DSA_MV88E6XXX is not set
CONFIG_NET_DSA_MV88E6060=y
# CONFIG_NET_DSA_MV88E6XXX_NEED_PPU is not set
# CONFIG_NET_DSA_MV88E6131 is not set
# CONFIG_NET_DSA_MV88E6123_61_65 is not set
CONFIG_VLAN_8021Q=y
CONFIG_VLAN_8021Q_GVRP=y
CONFIG_DECNET=y
# CONFIG_DECNET_ROUTER is not set
CONFIG_LLC=y
CONFIG_LLC2=y
CONFIG_IPX=y
# CONFIG_IPX_INTERN is not set
CONFIG_ATALK=m
CONFIG_DEV_APPLETALK=m
# CONFIG_LTPC is not set
CONFIG_IPDDP=m
CONFIG_IPDDP_ENCAP=y
# CONFIG_IPDDP_DECAP is not set
# CONFIG_X25 is not set
CONFIG_LAPB=m
CONFIG_ECONET=m
CONFIG_ECONET_AUNUDP=y
CONFIG_ECONET_NATIVE=y
# CONFIG_WAN_ROUTER is not set
CONFIG_NET_SCHED=y

#
# Queueing/Scheduling
#
CONFIG_NET_SCH_CBQ=m
# CONFIG_NET_SCH_HTB is not set
CONFIG_NET_SCH_HFSC=y
# CONFIG_NET_SCH_ATM is not set
CONFIG_NET_SCH_PRIO=y
# CONFIG_NET_SCH_MULTIQ is not set
# CONFIG_NET_SCH_RED is not set
CONFIG_NET_SCH_SFQ=m
CONFIG_NET_SCH_TEQL=m
# CONFIG_NET_SCH_TBF is not set
# CONFIG_NET_SCH_GRED is not set
CONFIG_NET_SCH_DSMARK=y
# CONFIG_NET_SCH_NETEM is not set
# CONFIG_NET_SCH_DRR is not set
# CONFIG_NET_SCH_INGRESS is not set

#
# Classification
#
CONFIG_NET_CLS=y
CONFIG_NET_CLS_BASIC=y
CONFIG_NET_CLS_TCINDEX=m
# CONFIG_NET_CLS_ROUTE4 is not set
CONFIG_NET_CLS_FW=m
CONFIG_NET_CLS_U32=y
CONFIG_CLS_U32_PERF=y
# CONFIG_CLS_U32_MARK is not set
CONFIG_NET_CLS_RSVP=m
# CONFIG_NET_CLS_RSVP6 is not set
CONFIG_NET_CLS_FLOW=m
CONFIG_NET_CLS_CGROUP=y
# CONFIG_NET_EMATCH is not set
CONFIG_NET_CLS_ACT=y
CONFIG_NET_ACT_POLICE=m
# CONFIG_NET_ACT_GACT is not set
CONFIG_NET_ACT_MIRRED=m
CONFIG_NET_ACT_IPT=m
CONFIG_NET_ACT_NAT=m
CONFIG_NET_ACT_PEDIT=m
CONFIG_NET_ACT_SIMP=m
CONFIG_NET_ACT_SKBEDIT=y
# CONFIG_NET_CLS_IND is not set
CONFIG_NET_SCH_FIFO=y
# CONFIG_DCB is not set

#
# Network testing
#
# CONFIG_NET_PKTGEN is not set
# CONFIG_HAMRADIO is not set
CONFIG_CAN=m
CONFIG_CAN_RAW=m
# CONFIG_CAN_BCM is not set

#
# CAN Device Drivers
#
CONFIG_CAN_VCAN=m
CONFIG_CAN_DEBUG_DEVICES=y
# CONFIG_IRDA is not set
CONFIG_BT=y
CONFIG_BT_L2CAP=y
CONFIG_BT_SCO=m
CONFIG_BT_RFCOMM=y
# CONFIG_BT_RFCOMM_TTY is not set
CONFIG_BT_BNEP=y
# CONFIG_BT_BNEP_MC_FILTER is not set
CONFIG_BT_BNEP_PROTO_FILTER=y
CONFIG_BT_CMTP=m
CONFIG_BT_HIDP=y

#
# Bluetooth device drivers
#
# CONFIG_BT_HCIBTUSB is not set
# CONFIG_BT_HCIBTSDIO is not set
CONFIG_BT_HCIUART=y
# CONFIG_BT_HCIUART_H4 is not set
CONFIG_BT_HCIUART_BCSP=y
CONFIG_BT_HCIUART_LL=y
CONFIG_BT_HCIBCM203X=m
CONFIG_BT_HCIBPA10X=y
CONFIG_BT_HCIBFUSB=y
# CONFIG_BT_HCIDTL1 is not set
# CONFIG_BT_HCIBT3C is not set
CONFIG_BT_HCIBLUECARD=m
CONFIG_BT_HCIBTUART=m
# CONFIG_BT_HCIVHCI is not set
# CONFIG_AF_RXRPC is not set
# CONFIG_PHONET is not set
CONFIG_FIB_RULES=y
CONFIG_WIRELESS=y
CONFIG_CFG80211=y
# CONFIG_CFG80211_REG_DEBUG is not set
# CONFIG_NL80211 is not set
CONFIG_WIRELESS_OLD_REGULATORY=y
CONFIG_WIRELESS_EXT=y
CONFIG_WIRELESS_EXT_SYSFS=y
CONFIG_LIB80211=y
CONFIG_MAC80211=y

#
# Rate control algorithm selection
#
# CONFIG_MAC80211_RC_PID is not set
# CONFIG_MAC80211_RC_MINSTREL is not set
# CONFIG_MAC80211_RC_DEFAULT_PID is not set
# CONFIG_MAC80211_RC_DEFAULT_MINSTREL is not set
CONFIG_MAC80211_RC_DEFAULT=""
CONFIG_MAC80211_MESH=y
CONFIG_MAC80211_LEDS=y
CONFIG_MAC80211_DEBUGFS=y
CONFIG_MAC80211_DEBUG_MENU=y
CONFIG_MAC80211_DEBUG_PACKET_ALIGNMENT=y
CONFIG_MAC80211_NOINLINE=y
CONFIG_MAC80211_VERBOSE_DEBUG=y
# CONFIG_MAC80211_HT_DEBUG is not set
# CONFIG_MAC80211_TKIP_DEBUG is not set
CONFIG_MAC80211_IBSS_DEBUG=y
CONFIG_MAC80211_VERBOSE_PS_DEBUG=y
# CONFIG_MAC80211_VERBOSE_MPL_DEBUG is not set
CONFIG_MAC80211_DEBUG_COUNTERS=y
CONFIG_MAC80211_VERBOSE_SPECT_MGMT_DEBUG=y
# CONFIG_WIMAX is not set
CONFIG_RFKILL=m
CONFIG_RFKILL_INPUT=m
CONFIG_RFKILL_LEDS=y

#
# Device Drivers
#

#
# Generic Driver Options
#
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
CONFIG_STANDALONE=y
CONFIG_PREVENT_FIRMWARE_BUILD=y
CONFIG_FW_LOADER=y
# CONFIG_FIRMWARE_IN_KERNEL is not set
CONFIG_EXTRA_FIRMWARE=""
# CONFIG_SYS_HYPERVISOR is not set
# CONFIG_CONNECTOR is not set
# CONFIG_PARPORT is not set
# CONFIG_PNP is not set
CONFIG_BLK_DEV=y
CONFIG_BLK_DEV_FD=m
CONFIG_BLK_DEV_XD=m
CONFIG_BLK_CPQ_DA=y
CONFIG_BLK_CPQ_CISS_DA=m
CONFIG_CISS_SCSI_TAPE=y
# CONFIG_BLK_DEV_DAC960 is not set
# CONFIG_BLK_DEV_UMEM is not set
# CONFIG_BLK_DEV_COW_COMMON is not set
# CONFIG_BLK_DEV_LOOP is not set
# CONFIG_BLK_DEV_NBD is not set
# CONFIG_BLK_DEV_SX8 is not set
CONFIG_BLK_DEV_UB=y
# CONFIG_BLK_DEV_RAM is not set
CONFIG_CDROM_PKTCDVD=m
CONFIG_CDROM_PKTCDVD_BUFFERS=8
CONFIG_CDROM_PKTCDVD_WCACHE=y
# CONFIG_ATA_OVER_ETH is not set
CONFIG_BLK_DEV_HD=y
CONFIG_MISC_DEVICES=y
CONFIG_IBM_ASM=y
CONFIG_PHANTOM=m
# CONFIG_SGI_IOC4 is not set
CONFIG_TIFM_CORE=m
CONFIG_TIFM_7XX1=m
CONFIG_ICS932S401=y
CONFIG_ENCLOSURE_SERVICES=y
CONFIG_HP_ILO=m
CONFIG_C2PORT=y
CONFIG_C2PORT_DURAMAR_2150=m

#
# EEPROM support
#
CONFIG_EEPROM_AT24=y
CONFIG_EEPROM_AT25=m
CONFIG_EEPROM_LEGACY=y
CONFIG_EEPROM_93CX6=y
CONFIG_HAVE_IDE=y

#
# SCSI device support
#
# CONFIG_RAID_ATTRS is not set
CONFIG_SCSI=y
CONFIG_SCSI_DMA=y
# CONFIG_SCSI_TGT is not set
# CONFIG_SCSI_NETLINK is not set
CONFIG_SCSI_PROC_FS=y

#
# SCSI support type (disk, tape, CD-ROM)
#
CONFIG_BLK_DEV_SD=y
CONFIG_CHR_DEV_ST=y
CONFIG_CHR_DEV_OSST=m
CONFIG_BLK_DEV_SR=m
CONFIG_BLK_DEV_SR_VENDOR=y
CONFIG_CHR_DEV_SG=m
# CONFIG_CHR_DEV_SCH is not set
CONFIG_SCSI_ENCLOSURE=m

#
# Some SCSI devices (e.g. CD jukebox) support multiple LUNs
#
CONFIG_SCSI_MULTI_LUN=y
CONFIG_SCSI_CONSTANTS=y
CONFIG_SCSI_LOGGING=y
# CONFIG_SCSI_SCAN_ASYNC is not set
CONFIG_SCSI_WAIT_SCAN=m

#
# SCSI Transports
#
CONFIG_SCSI_SPI_ATTRS=y
# CONFIG_SCSI_FC_ATTRS is not set
CONFIG_SCSI_ISCSI_ATTRS=m
CONFIG_SCSI_SAS_ATTRS=m
# CONFIG_SCSI_SRP_ATTRS is not set
# CONFIG_SCSI_LOWLEVEL is not set
CONFIG_SCSI_AIC7XXX=y
# CONFIG_SCSI_LOWLEVEL_PCMCIA is not set
CONFIG_SCSI_DH=y
CONFIG_SCSI_DH_RDAC=m
CONFIG_SCSI_DH_HP_SW=y
# CONFIG_SCSI_DH_EMC is not set
CONFIG_SCSI_DH_ALUA=y
CONFIG_ATA=y
# CONFIG_ATA_NONSTANDARD is not set
CONFIG_SATA_PMP=y
CONFIG_SATA_AHCI=y
CONFIG_SATA_SIL24=y
CONFIG_ATA_SFF=y
CONFIG_SATA_SVW=y
CONFIG_ATA_PIIX=y
CONFIG_SATA_MV=y
CONFIG_SATA_NV=y
CONFIG_PDC_ADMA=m
CONFIG_SATA_QSTOR=m
# CONFIG_SATA_PROMISE is not set
CONFIG_SATA_SX4=m
CONFIG_SATA_SIL=y
CONFIG_SATA_SIS=m
CONFIG_SATA_ULI=m
CONFIG_SATA_VIA=y
# CONFIG_SATA_VITESSE is not set
# CONFIG_SATA_INIC162X is not set
CONFIG_PATA_ALI=y
CONFIG_PATA_AMD=y
CONFIG_PATA_ARTOP=m
CONFIG_PATA_ATIIXP=m
CONFIG_PATA_CMD640_PCI=m
CONFIG_PATA_CMD64X=y
CONFIG_PATA_CS5520=m
CONFIG_PATA_CS5530=y
# CONFIG_PATA_CS5535 is not set
CONFIG_PATA_CS5536=m
CONFIG_PATA_CYPRESS=y
CONFIG_PATA_EFAR=y
CONFIG_ATA_GENERIC=y
CONFIG_PATA_HPT366=m
# CONFIG_PATA_HPT37X is not set
CONFIG_PATA_HPT3X2N=m
# CONFIG_PATA_HPT3X3 is not set
CONFIG_PATA_IT821X=y
# CONFIG_PATA_IT8213 is not set
CONFIG_PATA_JMICRON=y
# CONFIG_PATA_LEGACY is not set
CONFIG_PATA_TRIFLEX=m
CONFIG_PATA_MARVELL=y
# CONFIG_PATA_MPIIX is not set
CONFIG_PATA_OLDPIIX=y
# CONFIG_PATA_NETCELL is not set
# CONFIG_PATA_NINJA32 is not set
CONFIG_PATA_NS87410=y
CONFIG_PATA_NS87415=m
# CONFIG_PATA_OPTI is not set
CONFIG_PATA_OPTIDMA=y
CONFIG_PATA_PCMCIA=m
CONFIG_PATA_PDC_OLD=m
CONFIG_PATA_QDI=m
# CONFIG_PATA_RADISYS is not set
CONFIG_PATA_RZ1000=m
# CONFIG_PATA_SC1200 is not set
# CONFIG_PATA_SERVERWORKS is not set
CONFIG_PATA_PDC2027X=y
CONFIG_PATA_SIL680=y
CONFIG_PATA_SIS=y
CONFIG_PATA_VIA=y
# CONFIG_PATA_WINBOND is not set
# CONFIG_PATA_WINBOND_VLB is not set
CONFIG_PATA_PLATFORM=y
CONFIG_PATA_SCH=y
CONFIG_MD=y
CONFIG_BLK_DEV_MD=y
CONFIG_MD_AUTODETECT=y
CONFIG_MD_LINEAR=y
CONFIG_MD_RAID0=m
CONFIG_MD_RAID1=y
CONFIG_MD_RAID10=y
CONFIG_MD_RAID456=y
CONFIG_MD_RAID5_RESHAPE=y
# CONFIG_MD_MULTIPATH is not set
CONFIG_MD_FAULTY=y
CONFIG_BLK_DEV_DM=m
# CONFIG_DM_DEBUG is not set
CONFIG_DM_CRYPT=m
# CONFIG_DM_SNAPSHOT is not set
# CONFIG_DM_MIRROR is not set
CONFIG_DM_ZERO=m
CONFIG_DM_MULTIPATH=m
CONFIG_DM_DELAY=m
CONFIG_DM_UEVENT=y
# CONFIG_FUSION is not set

#
# IEEE 1394 (FireWire) support
#

#
# Enable only one of the two stacks, unless you know what you are doing
#
CONFIG_FIREWIRE=y
# CONFIG_FIREWIRE_OHCI is not set
CONFIG_FIREWIRE_SBP2=m
CONFIG_IEEE1394=m
# CONFIG_IEEE1394_OHCI1394 is not set
CONFIG_IEEE1394_PCILYNX=m
CONFIG_IEEE1394_SBP2=m
# CONFIG_IEEE1394_SBP2_PHYS_DMA is not set
CONFIG_IEEE1394_ETH1394_ROM_ENTRY=y
CONFIG_IEEE1394_ETH1394=m
CONFIG_IEEE1394_RAWIO=m
CONFIG_IEEE1394_VERBOSEDEBUG=y
CONFIG_I2O=y
CONFIG_I2O_LCT_NOTIFY_ON_CHANGES=y
CONFIG_I2O_EXT_ADAPTEC=y
CONFIG_I2O_CONFIG=m
CONFIG_I2O_CONFIG_OLD_IOCTL=y
CONFIG_I2O_BUS=m
CONFIG_I2O_BLOCK=y
CONFIG_I2O_SCSI=m
CONFIG_I2O_PROC=m
CONFIG_MACINTOSH_DRIVERS=y
CONFIG_MAC_EMUMOUSEBTN=y
CONFIG_NETDEVICES=y
# CONFIG_IFB is not set
CONFIG_DUMMY=m
# CONFIG_BONDING is not set
CONFIG_MACVLAN=m
CONFIG_EQUALIZER=m
CONFIG_TUN=m
CONFIG_VETH=y
CONFIG_ARCNET=y
CONFIG_ARCNET_1201=y
# CONFIG_ARCNET_1051 is not set
CONFIG_ARCNET_RAW=y
CONFIG_ARCNET_CAP=m
CONFIG_ARCNET_COM90xx=m
CONFIG_ARCNET_COM90xxIO=m
CONFIG_ARCNET_RIM_I=m
# CONFIG_ARCNET_COM20020 is not set
CONFIG_PHYLIB=y

#
# MII PHY device drivers
#
CONFIG_MARVELL_PHY=m
CONFIG_DAVICOM_PHY=m
CONFIG_QSEMI_PHY=y
# CONFIG_LXT_PHY is not set
CONFIG_CICADA_PHY=y
# CONFIG_VITESSE_PHY is not set
CONFIG_SMSC_PHY=y
CONFIG_BROADCOM_PHY=y
CONFIG_ICPLUS_PHY=m
# CONFIG_REALTEK_PHY is not set
CONFIG_NATIONAL_PHY=m
# CONFIG_STE10XP is not set
# CONFIG_LSI_ET1011C_PHY is not set
CONFIG_FIXED_PHY=y
CONFIG_MDIO_BITBANG=y
CONFIG_MDIO_GPIO=y
CONFIG_NET_ETHERNET=y
CONFIG_MII=y
CONFIG_HAPPYMEAL=m
CONFIG_SUNGEM=y
CONFIG_CASSINI=m
# CONFIG_NET_VENDOR_3COM is not set
CONFIG_VORTEX=y
CONFIG_LANCE=y
CONFIG_NET_VENDOR_SMC=y
CONFIG_ULTRAMCA=m
CONFIG_ULTRA=m
CONFIG_ULTRA32=y
CONFIG_SMC9194=y
CONFIG_ENC28J60=y
CONFIG_ENC28J60_WRITEVERIFY=y
CONFIG_NET_VENDOR_RACAL=y
CONFIG_NI52=y
CONFIG_NI65=m
CONFIG_NET_TULIP=y
# CONFIG_DE2104X is not set
# CONFIG_TULIP is not set
# CONFIG_DE4X5 is not set
CONFIG_WINBOND_840=y
CONFIG_DM9102=m
CONFIG_ULI526X=y
# CONFIG_PCMCIA_XIRCOM is not set
CONFIG_AT1700=y
CONFIG_DEPCA=m
CONFIG_HP100=m
CONFIG_NET_ISA=y
CONFIG_E2100=y
CONFIG_EWRK3=m
CONFIG_EEXPRESS=m
# CONFIG_EEXPRESS_PRO is not set
CONFIG_HPLAN=m
CONFIG_LP486E=m
CONFIG_ETH16I=m
CONFIG_NE2000=y
# CONFIG_ZNET is not set
CONFIG_SEEQ8005=m
CONFIG_NE2_MCA=m
# CONFIG_IBMLANA is not set
# CONFIG_IBM_NEW_EMAC_ZMII is not set
# CONFIG_IBM_NEW_EMAC_RGMII is not set
# CONFIG_IBM_NEW_EMAC_TAH is not set
# CONFIG_IBM_NEW_EMAC_EMAC4 is not set
# CONFIG_IBM_NEW_EMAC_NO_FLOW_CTRL is not set
# CONFIG_IBM_NEW_EMAC_MAL_CLR_ICINTSTAT is not set
# CONFIG_IBM_NEW_EMAC_MAL_COMMON_ERR is not set
CONFIG_NET_PCI=y
CONFIG_PCNET32=y
CONFIG_AMD8111_ETH=m
CONFIG_ADAPTEC_STARFIRE=m
CONFIG_AC3200=m
CONFIG_APRICOT=m
# CONFIG_B44 is not set
CONFIG_FORCEDETH=y
CONFIG_FORCEDETH_NAPI=y
CONFIG_CS89x0=y
CONFIG_E100=y
CONFIG_LNE390=m
# CONFIG_FEALNX is not set
CONFIG_NATSEMI=m
CONFIG_NE2K_PCI=m
CONFIG_NE3210=m
# CONFIG_ES3210 is not set
# CONFIG_8139CP is not set
CONFIG_8139TOO=y
CONFIG_8139TOO_PIO=y
# CONFIG_8139TOO_TUNE_TWISTER is not set
CONFIG_8139TOO_8129=y
# CONFIG_8139_OLD_RX_RESET is not set
CONFIG_R6040=m
# CONFIG_SIS900 is not set
CONFIG_EPIC100=y
CONFIG_SMSC9420=m
CONFIG_SUNDANCE=m
CONFIG_SUNDANCE_MMIO=y
CONFIG_TLAN=y
CONFIG_VIA_RHINE=y
CONFIG_VIA_RHINE_MMIO=y
CONFIG_SC92031=y
CONFIG_ATL2=y
CONFIG_NETDEV_1000=y
CONFIG_ACENIC=m
CONFIG_ACENIC_OMIT_TIGON_I=y
CONFIG_DL2K=m
CONFIG_E1000=y
CONFIG_E1000E=y
# CONFIG_IP1000 is not set
CONFIG_IGB=m
# CONFIG_IGB_LRO is not set
CONFIG_IGB_DCA=y
# CONFIG_NS83820 is not set
CONFIG_HAMACHI=m
CONFIG_YELLOWFIN=m
CONFIG_R8169=m
CONFIG_R8169_VLAN=y
CONFIG_SIS190=m
CONFIG_SKGE=y
CONFIG_SKGE_DEBUG=y
CONFIG_SKY2=y
CONFIG_SKY2_DEBUG=y
CONFIG_VIA_VELOCITY=y
CONFIG_TIGON3=y
# CONFIG_BNX2 is not set
# CONFIG_QLA3XXX is not set
# CONFIG_ATL1 is not set
CONFIG_ATL1E=m
CONFIG_JME=m
CONFIG_NETDEV_10000=y
# CONFIG_CHELSIO_T1 is not set
CONFIG_CHELSIO_T3_DEPENDS=y
CONFIG_CHELSIO_T3=y
CONFIG_ENIC=y
# CONFIG_IXGBE is not set
CONFIG_IXGB=m
CONFIG_S2IO=y
# CONFIG_MYRI10GE is not set
CONFIG_NIU=m
CONFIG_MLX4_EN=m
CONFIG_MLX4_CORE=m
CONFIG_MLX4_DEBUG=y
CONFIG_TEHUTI=m
CONFIG_BNX2X=m
CONFIG_QLGE=y
CONFIG_SFC=m
CONFIG_TR=y
CONFIG_IBMTR=m
# CONFIG_IBMOL is not set
CONFIG_IBMLS=m
# CONFIG_3C359 is not set
# CONFIG_TMS380TR is not set
# CONFIG_SMCTR is not set

#
# Wireless LAN
#
CONFIG_WLAN_PRE80211=y
CONFIG_STRIP=y
CONFIG_ARLAN=y
CONFIG_WAVELAN=y
CONFIG_PCMCIA_WAVELAN=m
CONFIG_PCMCIA_NETWAVE=m
CONFIG_WLAN_80211=y
CONFIG_PCMCIA_RAYCS=m
CONFIG_LIBERTAS=m
CONFIG_LIBERTAS_USB=m
CONFIG_LIBERTAS_CS=m
CONFIG_LIBERTAS_SDIO=m
CONFIG_LIBERTAS_DEBUG=y
CONFIG_LIBERTAS_THINFIRM=m
CONFIG_LIBERTAS_THINFIRM_USB=m
CONFIG_AIRO=y
# CONFIG_HERMES is not set
# CONFIG_ATMEL is not set
# CONFIG_AIRO_CS is not set
# CONFIG_PCMCIA_WL3501 is not set
# CONFIG_PRISM54 is not set
CONFIG_USB_ZD1201=m
# CONFIG_USB_NET_RNDIS_WLAN is not set
# CONFIG_RTL8180 is not set
CONFIG_RTL8187=m
# CONFIG_ADM8211 is not set
CONFIG_MAC80211_HWSIM=m
CONFIG_P54_COMMON=y
# CONFIG_P54_USB is not set
# CONFIG_P54_PCI is not set
CONFIG_ATH5K=y
# CONFIG_ATH5K_DEBUG is not set
# CONFIG_ATH9K is not set
# CONFIG_IPW2100 is not set
# CONFIG_IPW2200 is not set
CONFIG_IWLWIFI=m
CONFIG_IWLCORE=m
CONFIG_IWLWIFI_LEDS=y
CONFIG_IWLWIFI_RFKILL=y
# CONFIG_IWLWIFI_DEBUG is not set
CONFIG_IWLAGN=m
# CONFIG_IWLAGN_SPECTRUM_MEASUREMENT is not set
CONFIG_IWLAGN_LEDS=y
CONFIG_IWL4965=y
CONFIG_IWL5000=y
CONFIG_IWL3945=m
CONFIG_IWL3945_RFKILL=y
CONFIG_IWL3945_SPECTRUM_MEASUREMENT=y
CONFIG_IWL3945_LEDS=y
CONFIG_IWL3945_DEBUG=y
# CONFIG_HOSTAP is not set
CONFIG_B43=y
CONFIG_B43_PCI_AUTOSELECT=y
CONFIG_B43_PCICORE_AUTOSELECT=y
CONFIG_B43_LEDS=y
# CONFIG_B43_DEBUG is not set
CONFIG_B43LEGACY=m
CONFIG_B43LEGACY_PCI_AUTOSELECT=y
CONFIG_B43LEGACY_PCICORE_AUTOSELECT=y
CONFIG_B43LEGACY_LEDS=y
CONFIG_B43LEGACY_RFKILL=y
# CONFIG_B43LEGACY_DEBUG is not set
CONFIG_B43LEGACY_DMA=y
CONFIG_B43LEGACY_PIO=y
CONFIG_B43LEGACY_DMA_AND_PIO_MODE=y
# CONFIG_B43LEGACY_DMA_MODE is not set
# CONFIG_B43LEGACY_PIO_MODE is not set
# CONFIG_ZD1211RW is not set

#
# Enable WiMAX (Networking options) to see the WiMAX drivers
#

#
# USB Network Adapters
#
CONFIG_USB_CATC=m
CONFIG_USB_KAWETH=y
# CONFIG_USB_PEGASUS is not set
CONFIG_USB_RTL8150=m
# CONFIG_USB_HSO is not set
# CONFIG_NET_PCMCIA is not set
# CONFIG_WAN is not set
CONFIG_ATM_DRIVERS=y
CONFIG_ATM_DUMMY=m
# CONFIG_ATM_TCP is not set
CONFIG_ATM_LANAI=y
CONFIG_ATM_ENI=y
# CONFIG_ATM_ENI_DEBUG is not set
CONFIG_ATM_ENI_TUNE_BURST=y
CONFIG_ATM_ENI_BURST_TX_16W=y
CONFIG_ATM_ENI_BURST_TX_8W=y
CONFIG_ATM_ENI_BURST_TX_4W=y
# CONFIG_ATM_ENI_BURST_TX_2W is not set
CONFIG_ATM_ENI_BURST_RX_16W=y
# CONFIG_ATM_ENI_BURST_RX_8W is not set
CONFIG_ATM_ENI_BURST_RX_4W=y
# CONFIG_ATM_ENI_BURST_RX_2W is not set
CONFIG_ATM_FIRESTREAM=m
CONFIG_ATM_ZATM=y
CONFIG_ATM_ZATM_DEBUG=y
CONFIG_ATM_NICSTAR=y
CONFIG_ATM_NICSTAR_USE_SUNI=y
CONFIG_ATM_NICSTAR_USE_IDT77105=y
CONFIG_ATM_IDT77252=y
CONFIG_ATM_IDT77252_DEBUG=y
# CONFIG_ATM_IDT77252_RCV_ALL is not set
CONFIG_ATM_IDT77252_USE_SUNI=y
# CONFIG_ATM_AMBASSADOR is not set
CONFIG_ATM_HORIZON=m
CONFIG_ATM_HORIZON_DEBUG=y
CONFIG_ATM_IA=m
# CONFIG_ATM_IA_DEBUG is not set
CONFIG_ATM_FORE200E=m
CONFIG_ATM_FORE200E_USE_TASKLET=y
CONFIG_ATM_FORE200E_TX_RETRY=16
CONFIG_ATM_FORE200E_DEBUG=0
# CONFIG_ATM_HE is not set
CONFIG_ATM_SOLOS=m
CONFIG_FDDI=m
CONFIG_DEFXX=m
CONFIG_DEFXX_MMIO=y
# CONFIG_SKFP is not set
CONFIG_HIPPI=y
CONFIG_ROADRUNNER=y
# CONFIG_ROADRUNNER_LARGE_RINGS is not set
CONFIG_PPP=m
# CONFIG_PPP_MULTILINK is not set
CONFIG_PPP_FILTER=y
# CONFIG_PPP_ASYNC is not set
CONFIG_PPP_SYNC_TTY=m
CONFIG_PPP_DEFLATE=m
CONFIG_PPP_BSDCOMP=m
CONFIG_PPP_MPPE=m
CONFIG_PPPOE=m
CONFIG_PPPOATM=m
# CONFIG_PPPOL2TP is not set
# CONFIG_SLIP is not set
CONFIG_SLHC=y
CONFIG_NET_FC=y
CONFIG_NETCONSOLE=y
CONFIG_NETCONSOLE_DYNAMIC=y
CONFIG_NETPOLL=y
CONFIG_NETPOLL_TRAP=y
CONFIG_NET_POLL_CONTROLLER=y
CONFIG_ISDN=y
CONFIG_ISDN_I4L=y
CONFIG_ISDN_PPP=y
CONFIG_ISDN_PPP_VJ=y
# CONFIG_ISDN_MPP is not set
# CONFIG_IPPP_FILTER is not set
# CONFIG_ISDN_PPP_BSDCOMP is not set
# CONFIG_ISDN_AUDIO is not set

#
# ISDN feature submodules
#
CONFIG_ISDN_DIVERSION=m

#
# ISDN4Linux hardware drivers
#

#
# Passive cards
#
CONFIG_ISDN_DRV_HISAX=y

#
# D-channel protocol features
#
CONFIG_HISAX_EURO=y
# CONFIG_DE_AOC is not set
CONFIG_HISAX_NO_SENDCOMPLETE=y
CONFIG_HISAX_NO_LLC=y
CONFIG_HISAX_NO_KEYPAD=y
CONFIG_HISAX_1TR6=y
CONFIG_HISAX_NI1=y
CONFIG_HISAX_MAX_CARDS=8

#
# HiSax supported cards
#
CONFIG_HISAX_16_0=y
CONFIG_HISAX_16_3=y
CONFIG_HISAX_TELESPCI=y
# CONFIG_HISAX_S0BOX is not set
CONFIG_HISAX_AVM_A1=y
CONFIG_HISAX_FRITZPCI=y
CONFIG_HISAX_AVM_A1_PCMCIA=y
CONFIG_HISAX_ELSA=y
# CONFIG_HISAX_IX1MICROR2 is not set
CONFIG_HISAX_DIEHLDIVA=y
CONFIG_HISAX_ASUSCOM=y
CONFIG_HISAX_TELEINT=y
# CONFIG_HISAX_HFCS is not set
CONFIG_HISAX_SEDLBAUER=y
# CONFIG_HISAX_SPORTSTER is not set
CONFIG_HISAX_MIC=y
CONFIG_HISAX_NETJET=y
CONFIG_HISAX_NETJET_U=y
# CONFIG_HISAX_NICCY is not set
# CONFIG_HISAX_ISURF is not set
CONFIG_HISAX_HSTSAPHIR=y
# CONFIG_HISAX_BKM_A4T is not set
CONFIG_HISAX_SCT_QUADRO=y
CONFIG_HISAX_GAZEL=y
CONFIG_HISAX_HFC_PCI=y
CONFIG_HISAX_W6692=y
CONFIG_HISAX_HFC_SX=y
# CONFIG_HISAX_ENTERNOW_PCI is not set
CONFIG_HISAX_DEBUG=y

#
# HiSax PCMCIA card service modules
#
CONFIG_HISAX_SEDLBAUER_CS=m
# CONFIG_HISAX_ELSA_CS is not set
# CONFIG_HISAX_AVM_A1_CS is not set
# CONFIG_HISAX_TELES_CS is not set

#
# HiSax sub driver modules
#
# CONFIG_HISAX_ST5481 is not set
CONFIG_HISAX_HFCUSB=y
# CONFIG_HISAX_HFC4S8S is not set
# CONFIG_HISAX_FRITZ_PCIPNP is not set

#
# Active cards
#
CONFIG_ISDN_DRV_PCBIT=y
CONFIG_ISDN_DRV_SC=m
CONFIG_ISDN_DRV_ACT2000=m
CONFIG_HYSDN=m
CONFIG_HYSDN_CAPI=y
CONFIG_ISDN_DRV_GIGASET=y
CONFIG_GIGASET_BASE=y
CONFIG_GIGASET_M105=m
CONFIG_GIGASET_M101=m
# CONFIG_GIGASET_DEBUG is not set
# CONFIG_GIGASET_UNDOCREQ is not set
CONFIG_ISDN_CAPI=m
CONFIG_ISDN_DRV_AVMB1_VERBOSE_REASON=y
CONFIG_CAPI_TRACE=y
# CONFIG_ISDN_CAPI_MIDDLEWARE is not set
CONFIG_ISDN_CAPI_CAPI20=m
CONFIG_ISDN_CAPI_CAPIDRV=m

#
# CAPI hardware drivers
#
# CONFIG_CAPI_AVM is not set
# CONFIG_CAPI_EICON is not set
# CONFIG_PHONE is not set

#
# Input device support
#
CONFIG_INPUT=y
# CONFIG_INPUT_FF_MEMLESS is not set
CONFIG_INPUT_POLLDEV=y

#
# Userland interfaces
#
CONFIG_INPUT_MOUSEDEV=y
# CONFIG_INPUT_MOUSEDEV_PSAUX is not set
CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
CONFIG_INPUT_JOYDEV=y
CONFIG_INPUT_EVDEV=y
CONFIG_INPUT_EVBUG=m

#
# Input Device Drivers
#
CONFIG_INPUT_KEYBOARD=y
CONFIG_KEYBOARD_ATKBD=y
CONFIG_KEYBOARD_SUNKBD=y
CONFIG_KEYBOARD_LKKBD=y
# CONFIG_KEYBOARD_XTKBD is not set
CONFIG_KEYBOARD_NEWTON=y
CONFIG_KEYBOARD_STOWAWAY=y
# CONFIG_KEYBOARD_GPIO is not set
CONFIG_INPUT_MOUSE=y
CONFIG_MOUSE_PS2=y
CONFIG_MOUSE_PS2_ALPS=y
# CONFIG_MOUSE_PS2_LOGIPS2PP is not set
CONFIG_MOUSE_PS2_SYNAPTICS=y
# CONFIG_MOUSE_PS2_LIFEBOOK is not set
CONFIG_MOUSE_PS2_TRACKPOINT=y
# CONFIG_MOUSE_PS2_ELANTECH is not set
CONFIG_MOUSE_PS2_TOUCHKIT=y
CONFIG_MOUSE_PS2_OLPC=y
CONFIG_MOUSE_SERIAL=m
CONFIG_MOUSE_APPLETOUCH=m
# CONFIG_MOUSE_BCM5974 is not set
CONFIG_MOUSE_INPORT=y
CONFIG_MOUSE_ATIXL=y
CONFIG_MOUSE_LOGIBM=m
# CONFIG_MOUSE_PC110PAD is not set
CONFIG_MOUSE_VSXXXAA=y
CONFIG_MOUSE_GPIO=m
CONFIG_INPUT_JOYSTICK=y
CONFIG_JOYSTICK_ANALOG=m
CONFIG_JOYSTICK_A3D=m
CONFIG_JOYSTICK_ADI=m
CONFIG_JOYSTICK_COBRA=m
CONFIG_JOYSTICK_GF2K=m
CONFIG_JOYSTICK_GRIP=m
# CONFIG_JOYSTICK_GRIP_MP is not set
CONFIG_JOYSTICK_GUILLEMOT=y
CONFIG_JOYSTICK_INTERACT=y
CONFIG_JOYSTICK_SIDEWINDER=m
CONFIG_JOYSTICK_TMDC=y
CONFIG_JOYSTICK_IFORCE=y
CONFIG_JOYSTICK_IFORCE_USB=y
CONFIG_JOYSTICK_IFORCE_232=y
# CONFIG_JOYSTICK_WARRIOR is not set
CONFIG_JOYSTICK_MAGELLAN=y
# CONFIG_JOYSTICK_SPACEORB is not set
CONFIG_JOYSTICK_SPACEBALL=m
CONFIG_JOYSTICK_STINGER=y
# CONFIG_JOYSTICK_TWIDJOY is not set
CONFIG_JOYSTICK_ZHENHUA=m
# CONFIG_JOYSTICK_JOYDUMP is not set
CONFIG_JOYSTICK_XPAD=y
# CONFIG_JOYSTICK_XPAD_FF is not set
CONFIG_JOYSTICK_XPAD_LEDS=y
CONFIG_INPUT_TABLET=y
CONFIG_TABLET_USB_ACECAD=y
# CONFIG_TABLET_USB_AIPTEK is not set
CONFIG_TABLET_USB_GTCO=y
CONFIG_TABLET_USB_KBTAB=m
CONFIG_TABLET_USB_WACOM=m
CONFIG_INPUT_TOUCHSCREEN=y
# CONFIG_TOUCHSCREEN_ADS7846 is not set
# CONFIG_TOUCHSCREEN_DA9034 is not set
# CONFIG_TOUCHSCREEN_FUJITSU is not set
CONFIG_TOUCHSCREEN_GUNZE=y
CONFIG_TOUCHSCREEN_ELO=m
CONFIG_TOUCHSCREEN_WACOM_W8001=m
# CONFIG_TOUCHSCREEN_MTOUCH is not set
# CONFIG_TOUCHSCREEN_INEXIO is not set
# CONFIG_TOUCHSCREEN_MK712 is not set
CONFIG_TOUCHSCREEN_HTCPEN=m
CONFIG_TOUCHSCREEN_PENMOUNT=y
# CONFIG_TOUCHSCREEN_TOUCHRIGHT is not set
CONFIG_TOUCHSCREEN_TOUCHWIN=y
# CONFIG_TOUCHSCREEN_UCB1400 is not set
CONFIG_TOUCHSCREEN_WM97XX=m
CONFIG_TOUCHSCREEN_WM9705=y
# CONFIG_TOUCHSCREEN_WM9712 is not set
CONFIG_TOUCHSCREEN_WM9713=y
CONFIG_TOUCHSCREEN_USB_COMPOSITE=m
CONFIG_TOUCHSCREEN_USB_EGALAX=y
# CONFIG_TOUCHSCREEN_USB_PANJIT is not set
CONFIG_TOUCHSCREEN_USB_3M=y
# CONFIG_TOUCHSCREEN_USB_ITM is not set
# CONFIG_TOUCHSCREEN_USB_ETURBO is not set
CONFIG_TOUCHSCREEN_USB_GUNZE=y
CONFIG_TOUCHSCREEN_USB_DMC_TSC10=y
# CONFIG_TOUCHSCREEN_USB_IRTOUCH is not set
# CONFIG_TOUCHSCREEN_USB_IDEALTEK is not set
CONFIG_TOUCHSCREEN_USB_GENERAL_TOUCH=y
# CONFIG_TOUCHSCREEN_USB_GOTOP is not set
CONFIG_TOUCHSCREEN_TOUCHIT213=y
CONFIG_TOUCHSCREEN_TSC2007=m
CONFIG_INPUT_MISC=y
# CONFIG_INPUT_PCSPKR is not set
# CONFIG_INPUT_APANEL is not set
CONFIG_INPUT_WISTRON_BTNS=m
# CONFIG_INPUT_ATI_REMOTE is not set
# CONFIG_INPUT_ATI_REMOTE2 is not set
CONFIG_INPUT_KEYSPAN_REMOTE=m
# CONFIG_INPUT_POWERMATE is not set
# CONFIG_INPUT_YEALINK is not set
# CONFIG_INPUT_CM109 is not set
CONFIG_INPUT_UINPUT=y

#
# Hardware I/O ports
#
CONFIG_SERIO=y
CONFIG_SERIO_I8042=y
CONFIG_SERIO_SERPORT=m
CONFIG_SERIO_CT82C710=m
CONFIG_SERIO_PCIPS2=m
CONFIG_SERIO_LIBPS2=y
CONFIG_SERIO_RAW=y
CONFIG_GAMEPORT=y
CONFIG_GAMEPORT_NS558=y
CONFIG_GAMEPORT_L4=m
CONFIG_GAMEPORT_EMU10K1=y
# CONFIG_GAMEPORT_FM801 is not set

#
# Character devices
#
CONFIG_VT=y
CONFIG_CONSOLE_TRANSLATIONS=y
CONFIG_VT_CONSOLE=y
CONFIG_HW_CONSOLE=y
# CONFIG_VT_HW_CONSOLE_BINDING is not set
CONFIG_DEVKMEM=y
CONFIG_SERIAL_NONSTANDARD=y
CONFIG_COMPUTONE=y
# CONFIG_ROCKETPORT is not set
# CONFIG_CYCLADES is not set
# CONFIG_DIGIEPCA is not set
# CONFIG_MOXA_INTELLIO is not set
CONFIG_MOXA_SMARTIO=y
CONFIG_ISI=y
CONFIG_SYNCLINK=y
CONFIG_SYNCLINKMP=m
CONFIG_SYNCLINK_GT=m
CONFIG_N_HDLC=y
# CONFIG_RISCOM8 is not set
# CONFIG_SPECIALIX is not set
# CONFIG_SX is not set
CONFIG_RIO=y
# CONFIG_RIO_OLDPCI is not set
# CONFIG_STALDRV is not set
# CONFIG_NOZOMI is not set

#
# Serial drivers
#
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_FIX_EARLYCON_MEM=y
CONFIG_SERIAL_8250_PCI=y
CONFIG_SERIAL_8250_CS=m
CONFIG_SERIAL_8250_NR_UARTS=4
CONFIG_SERIAL_8250_RUNTIME_UARTS=4
CONFIG_SERIAL_8250_EXTENDED=y
CONFIG_SERIAL_8250_MANY_PORTS=y
CONFIG_SERIAL_8250_FOURPORT=m
CONFIG_SERIAL_8250_ACCENT=m
CONFIG_SERIAL_8250_BOCA=y
# CONFIG_SERIAL_8250_EXAR_ST16C554 is not set
# CONFIG_SERIAL_8250_HUB6 is not set
CONFIG_SERIAL_8250_SHARE_IRQ=y
CONFIG_SERIAL_8250_DETECT_IRQ=y
CONFIG_SERIAL_8250_RSA=y
CONFIG_SERIAL_8250_MCA=m

#
# Non-8250 serial port support
#
CONFIG_SERIAL_CORE=y
CONFIG_SERIAL_CORE_CONSOLE=y
# CONFIG_SERIAL_JSM is not set
CONFIG_UNIX98_PTYS=y
CONFIG_DEVPTS_MULTIPLE_INSTANCES=y
CONFIG_LEGACY_PTYS=y
CONFIG_LEGACY_PTY_COUNT=256
# CONFIG_IPMI_HANDLER is not set
CONFIG_HW_RANDOM=y
CONFIG_HW_RANDOM_INTEL=m
# CONFIG_HW_RANDOM_AMD is not set
# CONFIG_HW_RANDOM_GEODE is not set
CONFIG_HW_RANDOM_VIA=m
CONFIG_NVRAM=y
CONFIG_DTLK=m
CONFIG_R3964=m
CONFIG_APPLICOM=y
CONFIG_SONYPI=m

#
# PCMCIA character devices
#
CONFIG_SYNCLINK_CS=m
CONFIG_CARDMAN_4000=m
CONFIG_CARDMAN_4040=m
CONFIG_IPWIRELESS=m
CONFIG_MWAVE=m
CONFIG_SCx200_GPIO=m
CONFIG_PC8736x_GPIO=m
CONFIG_NSC_GPIO=m
CONFIG_CS5535_GPIO=m
CONFIG_RAW_DRIVER=y
CONFIG_MAX_RAW_DEVS=256
# CONFIG_HANGCHECK_TIMER is not set
CONFIG_TCG_TPM=m
CONFIG_TCG_NSC=m
# CONFIG_TCG_ATMEL is not set
# CONFIG_TELCLOCK is not set
CONFIG_DEVPORT=y
CONFIG_I2C=y
CONFIG_I2C_BOARDINFO=y
# CONFIG_I2C_CHARDEV is not set
# CONFIG_I2C_HELPER_AUTO is not set

#
# I2C Algorithms
#
CONFIG_I2C_ALGOBIT=y
CONFIG_I2C_ALGOPCF=m
CONFIG_I2C_ALGOPCA=m

#
# I2C Hardware Bus support
#

#
# PC SMBus host controller drivers
#
CONFIG_I2C_ALI1535=y
# CONFIG_I2C_ALI1563 is not set
CONFIG_I2C_ALI15X3=m
# CONFIG_I2C_AMD756 is not set
# CONFIG_I2C_AMD8111 is not set
CONFIG_I2C_I801=y
# CONFIG_I2C_ISCH is not set
# CONFIG_I2C_PIIX4 is not set
CONFIG_I2C_NFORCE2=y
# CONFIG_I2C_SIS5595 is not set
# CONFIG_I2C_SIS630 is not set
CONFIG_I2C_SIS96X=y
# CONFIG_I2C_VIA is not set
# CONFIG_I2C_VIAPRO is not set

#
# I2C system bus drivers (mostly embedded / system-on-chip)
#
CONFIG_I2C_GPIO=y
# CONFIG_I2C_OCORES is not set
# CONFIG_I2C_SIMTEC is not set

#
# External I2C/SMBus adapter drivers
#
CONFIG_I2C_PARPORT_LIGHT=m
CONFIG_I2C_TAOS_EVM=m
# CONFIG_I2C_TINY_USB is not set

#
# Graphics adapter I2C/DDC channel drivers
#
CONFIG_I2C_VOODOO3=y

#
# Other I2C/SMBus bus drivers
#
CONFIG_I2C_PCA_PLATFORM=m
CONFIG_I2C_STUB=m
CONFIG_SCx200_I2C=m
CONFIG_SCx200_I2C_SCL=12
CONFIG_SCx200_I2C_SDA=13
CONFIG_SCx200_ACB=m

#
# Miscellaneous I2C Chip support
#
# CONFIG_DS1682 is not set
CONFIG_SENSORS_PCF8591=y
CONFIG_SENSORS_MAX6875=y
CONFIG_SENSORS_TSL2550=y
# CONFIG_I2C_DEBUG_CORE is not set
CONFIG_I2C_DEBUG_ALGO=y
CONFIG_I2C_DEBUG_BUS=y
CONFIG_I2C_DEBUG_CHIP=y
CONFIG_SPI=y
CONFIG_SPI_MASTER=y

#
# SPI Master Controller Drivers
#
CONFIG_SPI_BITBANG=m
CONFIG_SPI_GPIO=m

#
# SPI Protocol Masters
#
CONFIG_SPI_SPIDEV=m
CONFIG_SPI_TLE62X0=m
CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y
CONFIG_GPIOLIB=y
CONFIG_GPIO_SYSFS=y

#
# Memory mapped GPIO expanders:
#

#
# I2C GPIO expanders:
#
CONFIG_GPIO_MAX732X=m
CONFIG_GPIO_PCA953X=m
CONFIG_GPIO_PCF857X=m
# CONFIG_GPIO_TWL4030 is not set

#
# PCI GPIO expanders:
#
# CONFIG_GPIO_BT8XX is not set

#
# SPI GPIO expanders:
#
CONFIG_GPIO_MAX7301=m
CONFIG_GPIO_MCP23S08=m
CONFIG_W1=y

#
# 1-wire Bus Masters
#
CONFIG_W1_MASTER_MATROX=m
# CONFIG_W1_MASTER_DS2490 is not set
CONFIG_W1_MASTER_DS2482=m
# CONFIG_W1_MASTER_GPIO is not set

#
# 1-wire Slaves
#
# CONFIG_W1_SLAVE_THERM is not set
# CONFIG_W1_SLAVE_SMEM is not set
CONFIG_W1_SLAVE_DS2433=y
CONFIG_W1_SLAVE_DS2433_CRC=y
# CONFIG_W1_SLAVE_DS2760 is not set
# CONFIG_W1_SLAVE_BQ27000 is not set
CONFIG_POWER_SUPPLY=y
# CONFIG_POWER_SUPPLY_DEBUG is not set
# CONFIG_PDA_POWER is not set
# CONFIG_BATTERY_DS2760 is not set
CONFIG_BATTERY_OLPC=m
# CONFIG_BATTERY_BQ27x00 is not set
# CONFIG_BATTERY_DA9030 is not set
CONFIG_HWMON=y
CONFIG_HWMON_VID=y
CONFIG_SENSORS_ABITUGURU=m
# CONFIG_SENSORS_ABITUGURU3 is not set
CONFIG_SENSORS_AD7414=y
# CONFIG_SENSORS_AD7418 is not set
CONFIG_SENSORS_ADCXX=y
CONFIG_SENSORS_ADM1021=m
CONFIG_SENSORS_ADM1025=y
CONFIG_SENSORS_ADM1026=m
# CONFIG_SENSORS_ADM1029 is not set
CONFIG_SENSORS_ADM1031=m
# CONFIG_SENSORS_ADM9240 is not set
CONFIG_SENSORS_ADT7462=m
CONFIG_SENSORS_ADT7470=y
CONFIG_SENSORS_ADT7473=y
# CONFIG_SENSORS_ADT7475 is not set
CONFIG_SENSORS_K8TEMP=m
CONFIG_SENSORS_ASB100=y
CONFIG_SENSORS_ATXP1=m
CONFIG_SENSORS_DS1621=y
CONFIG_SENSORS_I5K_AMB=m
CONFIG_SENSORS_F71805F=m
CONFIG_SENSORS_F71882FG=m
CONFIG_SENSORS_F75375S=y
CONFIG_SENSORS_FSCHER=y
CONFIG_SENSORS_FSCPOS=m
CONFIG_SENSORS_FSCHMD=m
CONFIG_SENSORS_GL518SM=m
# CONFIG_SENSORS_GL520SM is not set
CONFIG_SENSORS_CORETEMP=m
# CONFIG_SENSORS_IT87 is not set
CONFIG_SENSORS_LM63=m
CONFIG_SENSORS_LM70=m
CONFIG_SENSORS_LM75=m
# CONFIG_SENSORS_LM77 is not set
CONFIG_SENSORS_LM78=m
CONFIG_SENSORS_LM80=y
# CONFIG_SENSORS_LM83 is not set
CONFIG_SENSORS_LM85=m
CONFIG_SENSORS_LM87=m
CONFIG_SENSORS_LM90=y
# CONFIG_SENSORS_LM92 is not set
# CONFIG_SENSORS_LM93 is not set
CONFIG_SENSORS_LTC4245=m
CONFIG_SENSORS_MAX1111=y
CONFIG_SENSORS_MAX1619=m
CONFIG_SENSORS_MAX6650=m
CONFIG_SENSORS_PC87360=m
# CONFIG_SENSORS_PC87427 is not set
CONFIG_SENSORS_SIS5595=y
CONFIG_SENSORS_DME1737=m
# CONFIG_SENSORS_SMSC47M1 is not set
CONFIG_SENSORS_SMSC47M192=y
CONFIG_SENSORS_SMSC47B397=m
# CONFIG_SENSORS_ADS7828 is not set
# CONFIG_SENSORS_THMC50 is not set
CONFIG_SENSORS_VIA686A=m
# CONFIG_SENSORS_VT1211 is not set
CONFIG_SENSORS_VT8231=y
CONFIG_SENSORS_W83781D=y
CONFIG_SENSORS_W83791D=y
CONFIG_SENSORS_W83792D=y
# CONFIG_SENSORS_W83793 is not set
CONFIG_SENSORS_W83L785TS=y
CONFIG_SENSORS_W83L786NG=y
CONFIG_SENSORS_W83627HF=y
# CONFIG_SENSORS_W83627EHF is not set
# CONFIG_SENSORS_HDAPS is not set
CONFIG_SENSORS_APPLESMC=m
CONFIG_HWMON_DEBUG_CHIP=y
CONFIG_THERMAL=m
CONFIG_THERMAL_HWMON=y
CONFIG_WATCHDOG=y
CONFIG_WATCHDOG_NOWAYOUT=y

#
# Watchdog Device Drivers
#
# CONFIG_SOFT_WATCHDOG is not set
CONFIG_ACQUIRE_WDT=m
CONFIG_ADVANTECH_WDT=y
CONFIG_ALIM1535_WDT=m
# CONFIG_ALIM7101_WDT is not set
# CONFIG_SC520_WDT is not set
# CONFIG_IB700_WDT is not set
# CONFIG_IBMASR is not set
CONFIG_WAFER_WDT=y
CONFIG_I6300ESB_WDT=y
CONFIG_ITCO_WDT=m
CONFIG_ITCO_VENDOR_SUPPORT=y
CONFIG_IT8712F_WDT=m
CONFIG_IT87_WDT=m
# CONFIG_HP_WATCHDOG is not set
CONFIG_SC1200_WDT=y
# CONFIG_SCx200_WDT is not set
# CONFIG_PC87413_WDT is not set
CONFIG_60XX_WDT=y
CONFIG_SBC8360_WDT=m
CONFIG_SBC7240_WDT=y
# CONFIG_CPU5_WDT is not set
# CONFIG_SMSC_SCH311X_WDT is not set
CONFIG_SMSC37B787_WDT=y
# CONFIG_W83627HF_WDT is not set
# CONFIG_W83697HF_WDT is not set
CONFIG_W83697UG_WDT=y
# CONFIG_W83877F_WDT is not set
CONFIG_W83977F_WDT=y
CONFIG_MACHZ_WDT=m
CONFIG_SBC_EPX_C3_WATCHDOG=y

#
# ISA-based Watchdog Cards
#
CONFIG_PCWATCHDOG=y
# CONFIG_MIXCOMWD is not set

#
# PCI-based Watchdog Cards
#
# CONFIG_PCIPCWATCHDOG is not set
# CONFIG_WDTPCI is not set

#
# USB-based Watchdog Cards
#
# CONFIG_USBPCWATCHDOG is not set
CONFIG_SSB_POSSIBLE=y

#
# Sonics Silicon Backplane
#
CONFIG_SSB=y
CONFIG_SSB_SPROM=y
CONFIG_SSB_PCIHOST_POSSIBLE=y
CONFIG_SSB_PCIHOST=y
CONFIG_SSB_B43_PCI_BRIDGE=y
CONFIG_SSB_SILENT=y
CONFIG_SSB_DRIVER_PCICORE_POSSIBLE=y
CONFIG_SSB_DRIVER_PCICORE=y

#
# Multifunction device drivers
#
# CONFIG_MFD_CORE is not set
CONFIG_MFD_SM501=y
CONFIG_MFD_SM501_GPIO=y
CONFIG_HTC_PASIC3=m
CONFIG_UCB1400_CORE=m
# CONFIG_TPS65010 is not set
CONFIG_TWL4030_CORE=y
# CONFIG_MFD_TMIO is not set
CONFIG_PMIC_DA903X=y
# CONFIG_MFD_WM8400 is not set
# CONFIG_MFD_PCF50633 is not set
# CONFIG_REGULATOR is not set

#
# Multimedia devices
#

#
# Multimedia core support
#
# CONFIG_VIDEO_DEV is not set
# CONFIG_DVB_CORE is not set
# CONFIG_VIDEO_MEDIA is not set

#
# Multimedia drivers
#
# CONFIG_DAB is not set

#
# Graphics support
#
CONFIG_AGP=m
CONFIG_AGP_ALI=m
CONFIG_AGP_ATI=m
# CONFIG_AGP_AMD is not set
CONFIG_AGP_AMD64=m
# CONFIG_AGP_INTEL is not set
# CONFIG_AGP_NVIDIA is not set
CONFIG_AGP_SIS=m
CONFIG_AGP_SWORKS=m
# CONFIG_AGP_VIA is not set
CONFIG_AGP_EFFICEON=m
CONFIG_DRM=m
CONFIG_DRM_TDFX=m
CONFIG_DRM_R128=m
CONFIG_DRM_RADEON=m
CONFIG_DRM_MGA=m
CONFIG_DRM_SIS=m
# CONFIG_DRM_VIA is not set
CONFIG_DRM_SAVAGE=m
CONFIG_VGASTATE=m
CONFIG_VIDEO_OUTPUT_CONTROL=y
CONFIG_FB=m
# CONFIG_FIRMWARE_EDID is not set
CONFIG_FB_DDC=m
# CONFIG_FB_BOOT_VESA_SUPPORT is not set
CONFIG_FB_CFB_FILLRECT=m
CONFIG_FB_CFB_COPYAREA=m
CONFIG_FB_CFB_IMAGEBLIT=m
# CONFIG_FB_CFB_REV_PIXELS_IN_BYTE is not set
CONFIG_FB_SYS_FILLRECT=m
CONFIG_FB_SYS_COPYAREA=m
CONFIG_FB_SYS_IMAGEBLIT=m
CONFIG_FB_FOREIGN_ENDIAN=y
CONFIG_FB_BOTH_ENDIAN=y
# CONFIG_FB_BIG_ENDIAN is not set
# CONFIG_FB_LITTLE_ENDIAN is not set
CONFIG_FB_SYS_FOPS=m
CONFIG_FB_DEFERRED_IO=y
CONFIG_FB_SVGALIB=m
# CONFIG_FB_MACMODES is not set
CONFIG_FB_BACKLIGHT=y
CONFIG_FB_MODE_HELPERS=y
CONFIG_FB_TILEBLITTING=y

#
# Frame buffer hardware drivers
#
CONFIG_FB_PM2=m
CONFIG_FB_PM2_FIFO_DISCONNECT=y
CONFIG_FB_CYBER2000=m
# CONFIG_FB_ARC is not set
# CONFIG_FB_N411 is not set
CONFIG_FB_HGA=m
CONFIG_FB_HGA_ACCEL=y
CONFIG_FB_S1D13XXX=m
CONFIG_FB_NVIDIA=m
CONFIG_FB_NVIDIA_I2C=y
# CONFIG_FB_NVIDIA_DEBUG is not set
CONFIG_FB_NVIDIA_BACKLIGHT=y
# CONFIG_FB_RIVA is not set
# CONFIG_FB_I810 is not set
CONFIG_FB_LE80578=m
# CONFIG_FB_CARILLO_RANCH is not set
# CONFIG_FB_INTEL is not set
CONFIG_FB_MATROX=m
CONFIG_FB_MATROX_MILLENIUM=y
CONFIG_FB_MATROX_MYSTIQUE=y
# CONFIG_FB_MATROX_G is not set
CONFIG_FB_MATROX_I2C=m
CONFIG_FB_MATROX_MULTIHEAD=y
CONFIG_FB_ATY128=m
CONFIG_FB_ATY128_BACKLIGHT=y
# CONFIG_FB_ATY is not set
CONFIG_FB_S3=m
CONFIG_FB_SAVAGE=m
CONFIG_FB_SAVAGE_I2C=y
# CONFIG_FB_SAVAGE_ACCEL is not set
# CONFIG_FB_SIS is not set
# CONFIG_FB_VIA is not set
CONFIG_FB_NEOMAGIC=m
CONFIG_FB_KYRO=m
# CONFIG_FB_3DFX is not set
CONFIG_FB_VOODOO1=m
CONFIG_FB_VT8623=m
CONFIG_FB_TRIDENT=m
CONFIG_FB_TRIDENT_ACCEL=y
# CONFIG_FB_ARK is not set
CONFIG_FB_PM3=m
CONFIG_FB_CARMINE=m
CONFIG_FB_CARMINE_DRAM_EVAL=y
# CONFIG_CARMINE_DRAM_CUSTOM is not set
CONFIG_FB_GEODE=y
CONFIG_FB_GEODE_LX=m
CONFIG_FB_GEODE_GX=m
CONFIG_FB_GEODE_GX1=m
# CONFIG_FB_SM501 is not set
CONFIG_FB_METRONOME=m
CONFIG_FB_MB862XX=m
# CONFIG_FB_MB862XX_PCI_GDC is not set
CONFIG_BACKLIGHT_LCD_SUPPORT=y
CONFIG_LCD_CLASS_DEVICE=y
# CONFIG_LCD_LTV350QV is not set
CONFIG_LCD_ILI9320=y
# CONFIG_LCD_TDO24M is not set
CONFIG_LCD_VGG2432A4=y
# CONFIG_LCD_PLATFORM is not set
CONFIG_BACKLIGHT_CLASS_DEVICE=m
# CONFIG_BACKLIGHT_GENERIC is not set
CONFIG_BACKLIGHT_PROGEAR=m
# CONFIG_BACKLIGHT_CARILLO_RANCH is not set
# CONFIG_BACKLIGHT_DA903X is not set
# CONFIG_BACKLIGHT_MBP_NVIDIA is not set
CONFIG_BACKLIGHT_SAHARA=m

#
# Display device support
#
CONFIG_DISPLAY_SUPPORT=y

#
# Display hardware drivers
#

#
# Console display driver support
#
CONFIG_VGA_CONSOLE=y
# CONFIG_VGACON_SOFT_SCROLLBACK is not set
CONFIG_DUMMY_CONSOLE=y
CONFIG_FONT_8x16=y
CONFIG_LOGO=y
# CONFIG_LOGO_LINUX_MONO is not set
CONFIG_LOGO_LINUX_VGA16=y
# CONFIG_LOGO_LINUX_CLUT224 is not set
CONFIG_SOUND=m
CONFIG_SOUND_OSS_CORE=y
CONFIG_SND=m
CONFIG_SND_TIMER=m
CONFIG_SND_PCM=m
CONFIG_SND_HWDEP=m
CONFIG_SND_RAWMIDI=m
CONFIG_SND_JACK=y
CONFIG_SND_SEQUENCER=m
CONFIG_SND_SEQ_DUMMY=m
CONFIG_SND_OSSEMUL=y
CONFIG_SND_MIXER_OSS=m
# CONFIG_SND_PCM_OSS is not set
CONFIG_SND_SEQUENCER_OSS=y
CONFIG_SND_HRTIMER=m
CONFIG_SND_SEQ_HRTIMER_DEFAULT=y
# CONFIG_SND_DYNAMIC_MINORS is not set
CONFIG_SND_SUPPORT_OLD_API=y
CONFIG_SND_VERBOSE_PROCFS=y
CONFIG_SND_VERBOSE_PRINTK=y
CONFIG_SND_DEBUG=y
CONFIG_SND_DEBUG_VERBOSE=y
CONFIG_SND_PCM_XRUN_DEBUG=y
CONFIG_SND_VMASTER=y
CONFIG_SND_MPU401_UART=m
CONFIG_SND_OPL3_LIB=m
CONFIG_SND_AC97_CODEC=m
# CONFIG_SND_DRIVERS is not set
CONFIG_SND_SB_COMMON=m
CONFIG_SND_SB16_DSP=m
# CONFIG_SND_ISA is not set
CONFIG_SND_PCI=y
CONFIG_SND_AD1889=m
# CONFIG_SND_ALS300 is not set
CONFIG_SND_ALS4000=m
CONFIG_SND_ALI5451=m
CONFIG_SND_ATIIXP=m
CONFIG_SND_ATIIXP_MODEM=m
CONFIG_SND_AU8810=m
# CONFIG_SND_AU8820 is not set
CONFIG_SND_AU8830=m
# CONFIG_SND_AW2 is not set
CONFIG_SND_AZT3328=m
CONFIG_SND_BT87X=m
# CONFIG_SND_BT87X_OVERCLOCK is not set
CONFIG_SND_CA0106=m
# CONFIG_SND_CMIPCI is not set
CONFIG_SND_OXYGEN_LIB=m
CONFIG_SND_OXYGEN=m
# CONFIG_SND_CS4281 is not set
CONFIG_SND_CS46XX=m
CONFIG_SND_CS46XX_NEW_DSP=y
CONFIG_SND_CS5530=m
CONFIG_SND_CS5535AUDIO=m
# CONFIG_SND_DARLA20 is not set
CONFIG_SND_GINA20=m
CONFIG_SND_LAYLA20=m
CONFIG_SND_DARLA24=m
CONFIG_SND_GINA24=m
CONFIG_SND_LAYLA24=m
CONFIG_SND_MONA=m
CONFIG_SND_MIA=m
CONFIG_SND_ECHO3G=m
# CONFIG_SND_INDIGO is not set
CONFIG_SND_INDIGOIO=m
CONFIG_SND_INDIGODJ=m
CONFIG_SND_EMU10K1=m
CONFIG_SND_EMU10K1X=m
CONFIG_SND_ENS1370=m
# CONFIG_SND_ENS1371 is not set
CONFIG_SND_ES1938=m
CONFIG_SND_ES1968=m
CONFIG_SND_FM801=m
CONFIG_SND_HDA_INTEL=m
CONFIG_SND_HDA_HWDEP=y
CONFIG_SND_HDA_RECONFIG=y
# CONFIG_SND_HDA_INPUT_BEEP is not set
# CONFIG_SND_HDA_CODEC_REALTEK is not set
CONFIG_SND_HDA_CODEC_ANALOG=y
CONFIG_SND_HDA_CODEC_SIGMATEL=y
CONFIG_SND_HDA_CODEC_VIA=y
CONFIG_SND_HDA_CODEC_ATIHDMI=y
CONFIG_SND_HDA_CODEC_NVHDMI=y
# CONFIG_SND_HDA_CODEC_INTELHDMI is not set
CONFIG_SND_HDA_CODEC_CONEXANT=y
CONFIG_SND_HDA_CODEC_CMEDIA=y
CONFIG_SND_HDA_CODEC_SI3054=y
# CONFIG_SND_HDA_GENERIC is not set
CONFIG_SND_HDA_POWER_SAVE=y
CONFIG_SND_HDA_POWER_SAVE_DEFAULT=0
# CONFIG_SND_HDSP is not set
CONFIG_SND_HDSPM=m
CONFIG_SND_HIFIER=m
CONFIG_SND_ICE1712=m
CONFIG_SND_ICE1724=m
# CONFIG_SND_INTEL8X0 is not set
# CONFIG_SND_INTEL8X0M is not set
# CONFIG_SND_KORG1212 is not set
CONFIG_SND_MAESTRO3=m
CONFIG_SND_MIXART=m
CONFIG_SND_NM256=m
CONFIG_SND_PCXHR=m
# CONFIG_SND_RIPTIDE is not set
# CONFIG_SND_RME32 is not set
CONFIG_SND_RME96=m
CONFIG_SND_RME9652=m
CONFIG_SND_SIS7019=m
# CONFIG_SND_SONICVIBES is not set
CONFIG_SND_TRIDENT=m
CONFIG_SND_VIA82XX=m
CONFIG_SND_VIA82XX_MODEM=m
CONFIG_SND_VIRTUOSO=m
# CONFIG_SND_VX222 is not set
CONFIG_SND_YMFPCI=m
CONFIG_SND_SPI=y
CONFIG_SND_USB=y
CONFIG_SND_USB_AUDIO=m
CONFIG_SND_USB_USX2Y=m
CONFIG_SND_USB_CAIAQ=m
# CONFIG_SND_USB_CAIAQ_INPUT is not set
# CONFIG_SND_USB_US122L is not set
CONFIG_SND_PCMCIA=y
# CONFIG_SND_VXPOCKET is not set
CONFIG_SND_PDAUDIOCF=m
CONFIG_SND_SOC=m
CONFIG_SND_SOC_I2C_AND_SPI=m
CONFIG_SND_SOC_ALL_CODECS=m
CONFIG_SND_SOC_AD73311=m
CONFIG_SND_SOC_AK4535=m
CONFIG_SND_SOC_CS4270=m
CONFIG_SND_SOC_L3=m
CONFIG_SND_SOC_PCM3008=m
CONFIG_SND_SOC_SSM2602=m
CONFIG_SND_SOC_TLV320AIC23=m
CONFIG_SND_SOC_TLV320AIC26=m
CONFIG_SND_SOC_TLV320AIC3X=m
CONFIG_SND_SOC_TWL4030=m
CONFIG_SND_SOC_UDA134X=m
CONFIG_SND_SOC_UDA1380=m
CONFIG_SND_SOC_WM8510=m
CONFIG_SND_SOC_WM8580=m
CONFIG_SND_SOC_WM8728=m
CONFIG_SND_SOC_WM8731=m
CONFIG_SND_SOC_WM8750=m
CONFIG_SND_SOC_WM8753=m
CONFIG_SND_SOC_WM8900=m
CONFIG_SND_SOC_WM8903=m
CONFIG_SND_SOC_WM8971=m
CONFIG_SND_SOC_WM8990=m
CONFIG_SOUND_PRIME=m
CONFIG_SOUND_MSNDCLAS=m
CONFIG_MSNDCLAS_INIT_FILE="/etc/sound/msndinit.bin"
CONFIG_MSNDCLAS_PERM_FILE="/etc/sound/msndperm.bin"
CONFIG_SOUND_MSNDPIN=m
CONFIG_MSNDPIN_INIT_FILE="/etc/sound/pndspini.bin"
CONFIG_MSNDPIN_PERM_FILE="/etc/sound/pndsperm.bin"
CONFIG_SOUND_OSS=m
# CONFIG_SOUND_TRACEINIT is not set
# CONFIG_SOUND_DMAP is not set
CONFIG_SOUND_SSCAPE=m
# CONFIG_SOUND_VMIDI is not set
CONFIG_SOUND_TRIX=m
CONFIG_SOUND_MSS=m
CONFIG_SOUND_MPU401=m
CONFIG_SOUND_PAS=m
CONFIG_SOUND_PSS=m
CONFIG_PSS_MIXER=y
# CONFIG_SOUND_SB is not set
CONFIG_SOUND_YM3812=m
# CONFIG_SOUND_UART6850 is not set
CONFIG_SOUND_AEDSP16=m
CONFIG_SC6600=y
CONFIG_SC6600_JOY=y
CONFIG_SC6600_CDROM=4
CONFIG_SC6600_CDROMBASE=0
CONFIG_AC97_BUS=m
# CONFIG_HID_SUPPORT is not set
CONFIG_HID=y
CONFIG_USB_MOUSE=y
CONFIG_USB_SUPPORT=y
CONFIG_USB_ARCH_HAS_HCD=y
CONFIG_USB_ARCH_HAS_OHCI=y
CONFIG_USB_ARCH_HAS_EHCI=y
CONFIG_USB=y
CONFIG_USB_DEBUG=y
CONFIG_USB_ANNOUNCE_NEW_DEVICES=y

#
# Miscellaneous USB options
#
CONFIG_USB_DEVICEFS=y
# CONFIG_USB_DEVICE_CLASS is not set
CONFIG_USB_DYNAMIC_MINORS=y
# CONFIG_USB_OTG is not set
CONFIG_USB_OTG_WHITELIST=y
CONFIG_USB_OTG_BLACKLIST_HUB=y
CONFIG_USB_MON=y
CONFIG_USB_WUSB=m
CONFIG_USB_WUSB_CBAF=m
CONFIG_USB_WUSB_CBAF_DEBUG=y

#
# USB Host Controller Drivers
#
CONFIG_USB_C67X00_HCD=m
CONFIG_USB_EHCI_HCD=y
# CONFIG_USB_EHCI_ROOT_HUB_TT is not set
# CONFIG_USB_EHCI_TT_NEWSCHED is not set
CONFIG_USB_OXU210HP_HCD=m
CONFIG_USB_ISP116X_HCD=y
# CONFIG_USB_ISP1760_HCD is not set
CONFIG_USB_OHCI_HCD=y
CONFIG_USB_OHCI_HCD_SSB=y
# CONFIG_USB_OHCI_BIG_ENDIAN_DESC is not set
# CONFIG_USB_OHCI_BIG_ENDIAN_MMIO is not set
CONFIG_USB_OHCI_LITTLE_ENDIAN=y
CONFIG_USB_UHCI_HCD=y
# CONFIG_USB_U132_HCD is not set
CONFIG_USB_SL811_HCD=m
# CONFIG_USB_SL811_CS is not set
# CONFIG_USB_R8A66597_HCD is not set
CONFIG_USB_HWA_HCD=m

#
# USB Device Class drivers
#
CONFIG_USB_ACM=y
CONFIG_USB_PRINTER=y
CONFIG_USB_WDM=y
# CONFIG_USB_TMC is not set

#
# NOTE: USB_STORAGE depends on SCSI but BLK_DEV_SD may also be needed;
#

#
# see USB_STORAGE Help for more information
#
CONFIG_USB_STORAGE=m
CONFIG_USB_STORAGE_DEBUG=y
CONFIG_USB_STORAGE_DATAFAB=y
# CONFIG_USB_STORAGE_FREECOM is not set
CONFIG_USB_STORAGE_ISD200=y
CONFIG_USB_STORAGE_USBAT=y
# CONFIG_USB_STORAGE_SDDR09 is not set
# CONFIG_USB_STORAGE_SDDR55 is not set
CONFIG_USB_STORAGE_JUMPSHOT=y
# CONFIG_USB_STORAGE_ALAUDA is not set
# CONFIG_USB_STORAGE_ONETOUCH is not set
# CONFIG_USB_STORAGE_KARMA is not set
CONFIG_USB_STORAGE_CYPRESS_ATACB=y
CONFIG_USB_LIBUSUAL=y

#
# USB Imaging devices
#
CONFIG_USB_MDC800=m
CONFIG_USB_MICROTEK=m

#
# USB port drivers
#
CONFIG_USB_SERIAL=y
CONFIG_USB_SERIAL_CONSOLE=y
CONFIG_USB_EZUSB=y
# CONFIG_USB_SERIAL_GENERIC is not set
# CONFIG_USB_SERIAL_AIRCABLE is not set
CONFIG_USB_SERIAL_ARK3116=y
# CONFIG_USB_SERIAL_BELKIN is not set
CONFIG_USB_SERIAL_CH341=m
# CONFIG_USB_SERIAL_WHITEHEAT is not set
CONFIG_USB_SERIAL_DIGI_ACCELEPORT=y
CONFIG_USB_SERIAL_CP2101=m
CONFIG_USB_SERIAL_CYPRESS_M8=y
CONFIG_USB_SERIAL_EMPEG=y
CONFIG_USB_SERIAL_FTDI_SIO=m
# CONFIG_USB_SERIAL_FUNSOFT is not set
# CONFIG_USB_SERIAL_VISOR is not set
CONFIG_USB_SERIAL_IPAQ=y
CONFIG_USB_SERIAL_IR=y
# CONFIG_USB_SERIAL_EDGEPORT is not set
CONFIG_USB_SERIAL_EDGEPORT_TI=m
CONFIG_USB_SERIAL_GARMIN=m
# CONFIG_USB_SERIAL_IPW is not set
# CONFIG_USB_SERIAL_IUU is not set
# CONFIG_USB_SERIAL_KEYSPAN_PDA is not set
CONFIG_USB_SERIAL_KEYSPAN=y
# CONFIG_USB_SERIAL_KLSI is not set
# CONFIG_USB_SERIAL_KOBIL_SCT is not set
# CONFIG_USB_SERIAL_MCT_U232 is not set
CONFIG_USB_SERIAL_MOS7720=m
# CONFIG_USB_SERIAL_MOS7840 is not set
CONFIG_USB_SERIAL_MOTOROLA=y
# CONFIG_USB_SERIAL_NAVMAN is not set
CONFIG_USB_SERIAL_PL2303=m
CONFIG_USB_SERIAL_OTI6858=y
CONFIG_USB_SERIAL_SPCP8X5=y
# CONFIG_USB_SERIAL_HP4X is not set
# CONFIG_USB_SERIAL_SAFE is not set
# CONFIG_USB_SERIAL_SIEMENS_MPI is not set
CONFIG_USB_SERIAL_SIERRAWIRELESS=m
CONFIG_USB_SERIAL_TI=m
CONFIG_USB_SERIAL_CYBERJACK=y
# CONFIG_USB_SERIAL_XIRCOM is not set
# CONFIG_USB_SERIAL_OPTION is not set
CONFIG_USB_SERIAL_OMNINET=y
# CONFIG_USB_SERIAL_OPTICON is not set
# CONFIG_USB_SERIAL_DEBUG is not set

#
# USB Miscellaneous drivers
#
CONFIG_USB_EMI62=m
CONFIG_USB_EMI26=m
CONFIG_USB_ADUTUX=y
# CONFIG_USB_SEVSEG is not set
# CONFIG_USB_RIO500 is not set
# CONFIG_USB_LEGOTOWER is not set
CONFIG_USB_LCD=m
# CONFIG_USB_BERRY_CHARGE is not set
CONFIG_USB_LED=m
# CONFIG_USB_CYPRESS_CY7C63 is not set
# CONFIG_USB_CYTHERM is not set
# CONFIG_USB_PHIDGET is not set
CONFIG_USB_IDMOUSE=m
CONFIG_USB_FTDI_ELAN=m
CONFIG_USB_APPLEDISPLAY=m
CONFIG_USB_SISUSBVGA=m
CONFIG_USB_SISUSBVGA_CON=y
CONFIG_USB_LD=m
CONFIG_USB_TRANCEVIBRATOR=y
CONFIG_USB_IOWARRIOR=m
CONFIG_USB_TEST=y
CONFIG_USB_ISIGHTFW=y
# CONFIG_USB_VST is not set
CONFIG_USB_ATM=y
CONFIG_USB_SPEEDTOUCH=m
CONFIG_USB_CXACRU=y
# CONFIG_USB_UEAGLEATM is not set
CONFIG_USB_XUSBATM=m

#
# OTG and related infrastructure
#
CONFIG_USB_OTG_UTILS=y
CONFIG_USB_GPIO_VBUS=m
CONFIG_TWL4030_USB=m
CONFIG_UWB=y
CONFIG_UWB_HWA=m
CONFIG_UWB_WHCI=y
CONFIG_UWB_WLP=y
# CONFIG_UWB_I1480U is not set
CONFIG_MMC=m
# CONFIG_MMC_DEBUG is not set
CONFIG_MMC_UNSAFE_RESUME=y

#
# MMC/SD/SDIO Card Drivers
#
# CONFIG_MMC_BLOCK is not set
# CONFIG_SDIO_UART is not set
CONFIG_MMC_TEST=m

#
# MMC/SD/SDIO Host Controller Drivers
#
# CONFIG_MMC_SDHCI is not set
# CONFIG_MMC_WBSD is not set
# CONFIG_MMC_TIFM_SD is not set
CONFIG_MMC_SDRICOH_CS=m
CONFIG_MEMSTICK=m
CONFIG_MEMSTICK_DEBUG=y

#
# MemoryStick drivers
#
# CONFIG_MEMSTICK_UNSAFE_RESUME is not set
CONFIG_MSPRO_BLOCK=m

#
# MemoryStick Host Controller Drivers
#
CONFIG_MEMSTICK_TIFM_MS=m
CONFIG_MEMSTICK_JMICRON_38X=m
CONFIG_NEW_LEDS=y
CONFIG_LEDS_CLASS=y

#
# LED drivers
#
# CONFIG_LEDS_NET48XX is not set
CONFIG_LEDS_WRAP=m
CONFIG_LEDS_ALIX2=y
CONFIG_LEDS_PCA9532=y
CONFIG_LEDS_GPIO=y
CONFIG_LEDS_CLEVO_MAIL=y
CONFIG_LEDS_PCA955X=m
CONFIG_LEDS_DA903X=m

#
# LED Triggers
#
CONFIG_LEDS_TRIGGERS=y
CONFIG_LEDS_TRIGGER_TIMER=y
CONFIG_LEDS_TRIGGER_HEARTBEAT=y
CONFIG_LEDS_TRIGGER_BACKLIGHT=m
CONFIG_LEDS_TRIGGER_DEFAULT_ON=y
CONFIG_ACCESSIBILITY=y
# CONFIG_A11Y_BRAILLE_CONSOLE is not set
CONFIG_EDAC=y

#
# Reporting subsystems
#
# CONFIG_EDAC_DEBUG is not set
# CONFIG_EDAC_MM_EDAC is not set
CONFIG_RTC_LIB=y
CONFIG_RTC_CLASS=y
# CONFIG_RTC_HCTOSYS is not set
# CONFIG_RTC_DEBUG is not set

#
# RTC interfaces
#
CONFIG_RTC_INTF_SYSFS=y
CONFIG_RTC_INTF_PROC=y
CONFIG_RTC_INTF_DEV=y
CONFIG_RTC_INTF_DEV_UIE_EMUL=y
CONFIG_RTC_DRV_TEST=y

#
# I2C RTC drivers
#
# CONFIG_RTC_DRV_DS1307 is not set
CONFIG_RTC_DRV_DS1374=m
CONFIG_RTC_DRV_DS1672=m
# CONFIG_RTC_DRV_MAX6900 is not set
# CONFIG_RTC_DRV_RS5C372 is not set
# CONFIG_RTC_DRV_ISL1208 is not set
# CONFIG_RTC_DRV_X1205 is not set
# CONFIG_RTC_DRV_PCF8563 is not set
CONFIG_RTC_DRV_PCF8583=y
CONFIG_RTC_DRV_M41T80=y
CONFIG_RTC_DRV_M41T80_WDT=y
CONFIG_RTC_DRV_TWL4030=y
CONFIG_RTC_DRV_S35390A=m
CONFIG_RTC_DRV_FM3130=y
# CONFIG_RTC_DRV_RX8581 is not set

#
# SPI RTC drivers
#
CONFIG_RTC_DRV_M41T94=y
# CONFIG_RTC_DRV_DS1305 is not set
CONFIG_RTC_DRV_DS1390=y
CONFIG_RTC_DRV_MAX6902=y
CONFIG_RTC_DRV_R9701=y
CONFIG_RTC_DRV_RS5C348=y
CONFIG_RTC_DRV_DS3234=m

#
# Platform RTC drivers
#
CONFIG_RTC_DRV_CMOS=y
CONFIG_RTC_DRV_DS1286=y
CONFIG_RTC_DRV_DS1511=m
CONFIG_RTC_DRV_DS1553=y
# CONFIG_RTC_DRV_DS1742 is not set
# CONFIG_RTC_DRV_STK17TA8 is not set
CONFIG_RTC_DRV_M48T86=m
CONFIG_RTC_DRV_M48T35=y
# CONFIG_RTC_DRV_M48T59 is not set
CONFIG_RTC_DRV_BQ4802=m
# CONFIG_RTC_DRV_V3020 is not set

#
# on-CPU RTC drivers
#
CONFIG_DMADEVICES=y

#
# DMA Devices
#
CONFIG_INTEL_IOATDMA=m
CONFIG_DMA_ENGINE=y

#
# DMA Clients
#
# CONFIG_NET_DMA is not set
CONFIG_DMATEST=y
CONFIG_DCA=m
# CONFIG_UIO is not set
CONFIG_X86_PLATFORM_DEVICES=y

#
# Firmware Drivers
#
# CONFIG_EDD is not set
# CONFIG_FIRMWARE_MEMMAP is not set
CONFIG_DELL_RBU=m
CONFIG_DCDBAS=y
CONFIG_DMIID=y
CONFIG_ISCSI_IBFT_FIND=y
CONFIG_ISCSI_IBFT=m

#
# File systems
#
CONFIG_EXT2_FS=m
# CONFIG_EXT2_FS_XATTR is not set
CONFIG_EXT2_FS_XIP=y
CONFIG_EXT3_FS=y
CONFIG_EXT3_FS_XATTR=y
CONFIG_EXT3_FS_POSIX_ACL=y
CONFIG_EXT3_FS_SECURITY=y
# CONFIG_EXT4_FS is not set
CONFIG_FS_XIP=y
CONFIG_JBD=y
# CONFIG_JBD_DEBUG is not set
CONFIG_JBD2=y
CONFIG_JBD2_DEBUG=y
CONFIG_FS_MBCACHE=y
CONFIG_REISERFS_FS=y
CONFIG_REISERFS_CHECK=y
CONFIG_REISERFS_PROC_INFO=y
CONFIG_REISERFS_FS_XATTR=y
CONFIG_REISERFS_FS_POSIX_ACL=y
CONFIG_REISERFS_FS_SECURITY=y
# CONFIG_JFS_FS is not set
CONFIG_FS_POSIX_ACL=y
CONFIG_FILE_LOCKING=y
# CONFIG_XFS_FS is not set
CONFIG_GFS2_FS=m
# CONFIG_GFS2_FS_LOCKING_DLM is not set
CONFIG_OCFS2_FS=y
# CONFIG_OCFS2_FS_O2CB is not set
# CONFIG_OCFS2_FS_USERSPACE_CLUSTER is not set
CONFIG_OCFS2_FS_STATS=y
CONFIG_OCFS2_DEBUG_MASKLOG=y
CONFIG_OCFS2_DEBUG_FS=y
CONFIG_OCFS2_FS_POSIX_ACL=y
# CONFIG_BTRFS_FS is not set
CONFIG_DNOTIFY=y
CONFIG_INOTIFY=y
# CONFIG_INOTIFY_USER is not set
CONFIG_QUOTA=y
CONFIG_QUOTA_NETLINK_INTERFACE=y
# CONFIG_PRINT_QUOTA_WARNING is not set
CONFIG_QUOTA_TREE=y
CONFIG_QFMT_V1=y
# CONFIG_QFMT_V2 is not set
CONFIG_QUOTACTL=y
CONFIG_AUTOFS_FS=m
# CONFIG_AUTOFS4_FS is not set
CONFIG_FUSE_FS=m

#
# CD-ROM/DVD Filesystems
#
CONFIG_ISO9660_FS=m
CONFIG_JOLIET=y
# CONFIG_ZISOFS is not set
CONFIG_UDF_FS=m
CONFIG_UDF_NLS=y

#
# DOS/FAT/NT Filesystems
#
# CONFIG_MSDOS_FS is not set
# CONFIG_VFAT_FS is not set
CONFIG_NTFS_FS=y
CONFIG_NTFS_DEBUG=y
CONFIG_NTFS_RW=y

#
# Pseudo filesystems
#
CONFIG_PROC_FS=y
# CONFIG_PROC_KCORE is not set
# CONFIG_PROC_SYSCTL is not set
CONFIG_PROC_PAGE_MONITOR=y
CONFIG_SYSFS=y
CONFIG_TMPFS=y
# CONFIG_TMPFS_POSIX_ACL is not set
CONFIG_HUGETLBFS=y
CONFIG_HUGETLB_PAGE=y
CONFIG_CONFIGFS_FS=y
CONFIG_MISC_FILESYSTEMS=y
CONFIG_ADFS_FS=m
CONFIG_ADFS_FS_RW=y
CONFIG_AFFS_FS=y
CONFIG_ECRYPT_FS=m
CONFIG_HFS_FS=y
CONFIG_HFSPLUS_FS=m
CONFIG_BEFS_FS=y
CONFIG_BEFS_DEBUG=y
CONFIG_BFS_FS=m
# CONFIG_EFS_FS is not set
# CONFIG_CRAMFS is not set
# CONFIG_SQUASHFS is not set
# CONFIG_VXFS_FS is not set
CONFIG_MINIX_FS=y
CONFIG_OMFS_FS=m
CONFIG_HPFS_FS=m
# CONFIG_QNX4FS_FS is not set
# CONFIG_ROMFS_FS is not set
CONFIG_SYSV_FS=y
# CONFIG_UFS_FS is not set
CONFIG_NETWORK_FILESYSTEMS=y
CONFIG_NFS_FS=m
CONFIG_NFS_V3=y
# CONFIG_NFS_V3_ACL is not set
CONFIG_NFS_V4=y
CONFIG_NFSD=m
CONFIG_NFSD_V2_ACL=y
CONFIG_NFSD_V3=y
CONFIG_NFSD_V3_ACL=y
CONFIG_NFSD_V4=y
CONFIG_LOCKD=m
CONFIG_LOCKD_V4=y
CONFIG_EXPORTFS=m
CONFIG_NFS_ACL_SUPPORT=m
CONFIG_NFS_COMMON=y
CONFIG_SUNRPC=m
CONFIG_SUNRPC_GSS=m
# CONFIG_SUNRPC_REGISTER_V4 is not set
CONFIG_RPCSEC_GSS_KRB5=m
# CONFIG_RPCSEC_GSS_SPKM3 is not set
# CONFIG_SMB_FS is not set
CONFIG_CIFS=y
CONFIG_CIFS_STATS=y
# CONFIG_CIFS_STATS2 is not set
CONFIG_CIFS_WEAK_PW_HASH=y
# CONFIG_CIFS_UPCALL is not set
CONFIG_CIFS_XATTR=y
CONFIG_CIFS_POSIX=y
# CONFIG_CIFS_DEBUG2 is not set
CONFIG_CIFS_EXPERIMENTAL=y
CONFIG_CIFS_DFS_UPCALL=y
# CONFIG_NCP_FS is not set
CONFIG_CODA_FS=m
# CONFIG_AFS_FS is not set

#
# Partition Types
#
CONFIG_PARTITION_ADVANCED=y
CONFIG_ACORN_PARTITION=y
# CONFIG_ACORN_PARTITION_CUMANA is not set
# CONFIG_ACORN_PARTITION_EESOX is not set
CONFIG_ACORN_PARTITION_ICS=y
CONFIG_ACORN_PARTITION_ADFS=y
# CONFIG_ACORN_PARTITION_POWERTEC is not set
# CONFIG_ACORN_PARTITION_RISCIX is not set
CONFIG_OSF_PARTITION=y
CONFIG_AMIGA_PARTITION=y
CONFIG_ATARI_PARTITION=y
CONFIG_MAC_PARTITION=y
CONFIG_MSDOS_PARTITION=y
CONFIG_BSD_DISKLABEL=y
CONFIG_MINIX_SUBPARTITION=y
# CONFIG_SOLARIS_X86_PARTITION is not set
CONFIG_UNIXWARE_DISKLABEL=y
CONFIG_LDM_PARTITION=y
# CONFIG_LDM_DEBUG is not set
CONFIG_SGI_PARTITION=y
CONFIG_ULTRIX_PARTITION=y
# CONFIG_SUN_PARTITION is not set
# CONFIG_KARMA_PARTITION is not set
CONFIG_EFI_PARTITION=y
CONFIG_SYSV68_PARTITION=y
CONFIG_NLS=y
CONFIG_NLS_DEFAULT="iso8859-1"
CONFIG_NLS_CODEPAGE_437=m
CONFIG_NLS_CODEPAGE_737=y
CONFIG_NLS_CODEPAGE_775=m
# CONFIG_NLS_CODEPAGE_850 is not set
CONFIG_NLS_CODEPAGE_852=y
CONFIG_NLS_CODEPAGE_855=y
CONFIG_NLS_CODEPAGE_857=y
CONFIG_NLS_CODEPAGE_860=y
CONFIG_NLS_CODEPAGE_861=m
CONFIG_NLS_CODEPAGE_862=y
CONFIG_NLS_CODEPAGE_863=m
CONFIG_NLS_CODEPAGE_864=m
CONFIG_NLS_CODEPAGE_865=y
CONFIG_NLS_CODEPAGE_866=m
CONFIG_NLS_CODEPAGE_869=m
CONFIG_NLS_CODEPAGE_936=m
CONFIG_NLS_CODEPAGE_950=m
CONFIG_NLS_CODEPAGE_932=y
CONFIG_NLS_CODEPAGE_949=m
CONFIG_NLS_CODEPAGE_874=m
# CONFIG_NLS_ISO8859_8 is not set
# CONFIG_NLS_CODEPAGE_1250 is not set
CONFIG_NLS_CODEPAGE_1251=m
CONFIG_NLS_ASCII=y
CONFIG_NLS_ISO8859_1=m
CONFIG_NLS_ISO8859_2=m
# CONFIG_NLS_ISO8859_3 is not set
CONFIG_NLS_ISO8859_4=y
CONFIG_NLS_ISO8859_5=m
CONFIG_NLS_ISO8859_6=m
CONFIG_NLS_ISO8859_7=m
CONFIG_NLS_ISO8859_9=y
CONFIG_NLS_ISO8859_13=y
CONFIG_NLS_ISO8859_14=m
# CONFIG_NLS_ISO8859_15 is not set
CONFIG_NLS_KOI8_R=m
CONFIG_NLS_KOI8_U=y
CONFIG_NLS_UTF8=y
CONFIG_DLM=m
# CONFIG_DLM_DEBUG is not set

#
# Kernel hacking
#
CONFIG_TRACE_IRQFLAGS_SUPPORT=y
CONFIG_PRINTK_TIME=y
CONFIG_ALLOW_WARNINGS=y
# CONFIG_ENABLE_WARN_DEPRECATED is not set
# CONFIG_ENABLE_MUST_CHECK is not set
CONFIG_FRAME_WARN=1024
CONFIG_MAGIC_SYSRQ=y
CONFIG_UNUSED_SYMBOLS=y
CONFIG_DEBUG_FS=y
CONFIG_HEADERS_CHECK=y
# CONFIG_DEBUG_KERNEL is not set
CONFIG_SLUB_DEBUG_ON=y
CONFIG_SLUB_STATS=y
CONFIG_STACKTRACE=y
# CONFIG_DEBUG_BUGVERBOSE is not set
CONFIG_DEBUG_MEMORY_INIT=y
CONFIG_ARCH_WANT_FRAME_POINTERS=y
CONFIG_FRAME_POINTER=y
CONFIG_RCU_CPU_STALL_DETECTOR=y
# CONFIG_LATENCYTOP is not set
CONFIG_SYSCTL_SYSCALL_CHECK=y
CONFIG_USER_STACKTRACE_SUPPORT=y
CONFIG_NOP_TRACER=y
CONFIG_HAVE_FUNCTION_TRACER=y
CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y
CONFIG_HAVE_FUNCTION_TRACE_MCOUNT_TEST=y
CONFIG_HAVE_DYNAMIC_FTRACE=y
CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y
CONFIG_HAVE_HW_BRANCH_TRACER=y
CONFIG_RING_BUFFER=y
CONFIG_TRACING=y

#
# Tracers
#
CONFIG_SYSPROF_TRACER=y
CONFIG_HW_BRANCH_TRACER=y
CONFIG_KMEMTRACE=y
CONFIG_WORKQUEUE_TRACER=y
CONFIG_BLK_DEV_IO_TRACE=y
# CONFIG_PROVIDE_OHCI1394_DMA_INIT is not set
# CONFIG_BUILD_DOCSRC is not set
CONFIG_DYNAMIC_PRINTK_DEBUG=y
# CONFIG_SAMPLES is not set
CONFIG_HAVE_ARCH_KGDB=y
CONFIG_STRICT_DEVMEM=y
# CONFIG_X86_VERBOSE_BOOTUP is not set
CONFIG_EARLY_PRINTK=y
CONFIG_EARLY_PRINTK_DBGP=y
# CONFIG_4KSTACKS is not set
CONFIG_DOUBLEFAULT=y
CONFIG_HAVE_MMIOTRACE_SUPPORT=y
CONFIG_IO_DELAY_TYPE_0X80=0
CONFIG_IO_DELAY_TYPE_0XED=1
CONFIG_IO_DELAY_TYPE_UDELAY=2
CONFIG_IO_DELAY_TYPE_NONE=3
CONFIG_IO_DELAY_0X80=y
# CONFIG_IO_DELAY_0XED is not set
# CONFIG_IO_DELAY_UDELAY is not set
# CONFIG_IO_DELAY_NONE is not set
CONFIG_DEFAULT_IO_DELAY_TYPE=0
CONFIG_OPTIMIZE_INLINING=y

#
# Security options
#
CONFIG_KEYS=y
# CONFIG_KEYS_DEBUG_PROC_KEYS is not set
CONFIG_SECURITY=y
CONFIG_SECURITYFS=y
# CONFIG_SECURITY_NETWORK is not set
CONFIG_SECURITY_PATH=y
# CONFIG_SECURITY_FILE_CAPABILITIES is not set
CONFIG_SECURITY_DEFAULT_MMAP_MIN_ADDR=0
CONFIG_XOR_BLOCKS=y
CONFIG_ASYNC_CORE=y
CONFIG_ASYNC_MEMCPY=y
CONFIG_ASYNC_XOR=y
CONFIG_CRYPTO=y

#
# Crypto core or helper
#
CONFIG_CRYPTO_FIPS=y
CONFIG_CRYPTO_ALGAPI=y
CONFIG_CRYPTO_ALGAPI2=y
CONFIG_CRYPTO_AEAD=y
CONFIG_CRYPTO_AEAD2=y
CONFIG_CRYPTO_BLKCIPHER=y
CONFIG_CRYPTO_BLKCIPHER2=y
CONFIG_CRYPTO_HASH=y
CONFIG_CRYPTO_HASH2=y
CONFIG_CRYPTO_RNG=y
CONFIG_CRYPTO_RNG2=y
CONFIG_CRYPTO_MANAGER=y
CONFIG_CRYPTO_MANAGER2=y
CONFIG_CRYPTO_GF128MUL=y
CONFIG_CRYPTO_NULL=y
CONFIG_CRYPTO_CRYPTD=m
CONFIG_CRYPTO_AUTHENC=y
CONFIG_CRYPTO_TEST=m

#
# Authenticated Encryption with Associated Data
#
CONFIG_CRYPTO_CCM=y
CONFIG_CRYPTO_GCM=y
CONFIG_CRYPTO_SEQIV=y

#
# Block modes
#
CONFIG_CRYPTO_CBC=y
CONFIG_CRYPTO_CTR=y
CONFIG_CRYPTO_CTS=m
CONFIG_CRYPTO_ECB=y
CONFIG_CRYPTO_LRW=m
CONFIG_CRYPTO_PCBC=y
CONFIG_CRYPTO_XTS=m

#
# Hash modes
#
CONFIG_CRYPTO_HMAC=y
CONFIG_CRYPTO_XCBC=y

#
# Digest
#
CONFIG_CRYPTO_CRC32C=y
CONFIG_CRYPTO_CRC32C_INTEL=y
# CONFIG_CRYPTO_MD4 is not set
CONFIG_CRYPTO_MD5=y
CONFIG_CRYPTO_MICHAEL_MIC=m
CONFIG_CRYPTO_RMD128=y
# CONFIG_CRYPTO_RMD160 is not set
CONFIG_CRYPTO_RMD256=y
CONFIG_CRYPTO_RMD320=y
CONFIG_CRYPTO_SHA1=y
CONFIG_CRYPTO_SHA256=y
# CONFIG_CRYPTO_SHA512 is not set
# CONFIG_CRYPTO_TGR192 is not set
CONFIG_CRYPTO_WP512=y

#
# Ciphers
#
CONFIG_CRYPTO_AES=y
CONFIG_CRYPTO_AES_586=m
CONFIG_CRYPTO_ANUBIS=y
CONFIG_CRYPTO_ARC4=y
CONFIG_CRYPTO_BLOWFISH=m
# CONFIG_CRYPTO_CAMELLIA is not set
# CONFIG_CRYPTO_CAST5 is not set
CONFIG_CRYPTO_CAST6=y
CONFIG_CRYPTO_DES=y
CONFIG_CRYPTO_FCRYPT=m
# CONFIG_CRYPTO_KHAZAD is not set
CONFIG_CRYPTO_SALSA20=y
# CONFIG_CRYPTO_SALSA20_586 is not set
CONFIG_CRYPTO_SEED=m
# CONFIG_CRYPTO_SERPENT is not set
CONFIG_CRYPTO_TEA=y
CONFIG_CRYPTO_TWOFISH=m
CONFIG_CRYPTO_TWOFISH_COMMON=m
CONFIG_CRYPTO_TWOFISH_586=m

#
# Compression
#
CONFIG_CRYPTO_DEFLATE=y
CONFIG_CRYPTO_LZO=y

#
# Random Number Generation
#
# CONFIG_CRYPTO_ANSI_CPRNG is not set
# CONFIG_CRYPTO_HW is not set
CONFIG_HAVE_KVM=y
# CONFIG_VIRTUALIZATION is not set

#
# Library routines
#
CONFIG_BITREVERSE=y
CONFIG_GENERIC_FIND_FIRST_BIT=y
CONFIG_GENERIC_FIND_NEXT_BIT=y
CONFIG_GENERIC_FIND_LAST_BIT=y
CONFIG_CRC_CCITT=y
CONFIG_CRC16=y
CONFIG_CRC_T10DIF=y
CONFIG_CRC_ITU_T=y
CONFIG_CRC32=y
CONFIG_CRC7=y
CONFIG_LIBCRC32C=y
CONFIG_AUDIT_GENERIC=y
CONFIG_ZLIB_INFLATE=y
CONFIG_ZLIB_DEFLATE=y
CONFIG_LZO_COMPRESS=y
CONFIG_LZO_DECOMPRESS=y
CONFIG_HAS_IOMEM=y
CONFIG_HAS_IOPORT=y
CONFIG_HAS_DMA=y
CONFIG_CHECK_SIGNATURE=y
CONFIG_FORCE_SUCCESSFUL_BUILD=y
CONFIG_FORCE_MINIMAL_CONFIG=y
CONFIG_FORCE_MINIMAL_CONFIG_PHYS=y
CONFIG_X86_32_ALWAYS_ON=y

Re: [PATCH 03/11] x86: fix math_emu register frame access

[Ingo Molnar]

* Brian Gerst <brgerst@gmail.com> wrote:

> On Mon, Feb 9, 2009 at 8:39 AM, Tejun Heo <tj@kernel.org> wrote:
> > do_device_not_available() is the handler for #NM and it declares that
> > it takes a unsigned long and calls math_emu(), which takes a long
> > argument and surprisingly expects the stack frame starting at the zero
> > argument would match struct math_emu_info, which isn't true regardless
> > of configuration in the current code.
> >
> > This patch makes do_device_not_available() take struct pt_regs like
> > other exception handlers and initialize struct math_emu_info with
> > pointer to it and pass pointer to the math_emu_info to math_emulate()
> > like normal C functions do.  This way, unless gcc makes a copy of
> > struct pt_regs in do_device_not_available(), the register frame is
> > correctly accessed regardless of kernel configuration or compiler
> > used.
> >
> > This doesn't fix all math_emu problems but it at least gets it
> > somewhat working.
> >
> > Signed-off-by: Tejun Heo <tj@kernel.org>
> >
> > diff --git a/arch/x86/kernel/traps.c b/arch/x86/kernel/traps.c
> > index afb46c0..84bdf8f 100644
> > --- a/arch/x86/kernel/traps.c
> > +++ b/arch/x86/kernel/traps.c
> > @@ -900,7 +900,7 @@ asmlinkage void math_state_restore(void)
> >  EXPORT_SYMBOL_GPL(math_state_restore);
> >
> >  #ifndef CONFIG_MATH_EMULATION
> > -asmlinkage void math_emulate(long arg)
> > +void math_emulate(struct math_emu_info *info)
> 
> You forgot to drop the asmlinkage from the prototype in traps.h.

fixed.

	Ingo

Re: [PATCH 03/11] x86: fix math_emu register frame access

[Tejun Heo]

Hello, Brian.

Brian Gerst wrote:
>>  {
>>        printk(KERN_EMERG
>>                "math-emulation not enabled and no coprocessor found.\n");
>> @@ -910,16 +910,19 @@ asmlinkage void math_emulate(long arg)
>>  }
>>  #endif /* CONFIG_MATH_EMULATION */
>>
>> -dotraplinkage void __kprobes
>> -do_device_not_available(struct pt_regs *regs, long error)
>> +dotraplinkage void __kprobes do_device_not_available(struct pt_regs regs)
> 
> Why did you change this to pass by value?  This is called from the
> generic trap handler (error_code), which already passes the pt_regs
> pointer in %eax.

Ah.. right, my bad.  I somehow thought dotraplinkage is asmlinkage on
x86_32.  Yeah, the original code was fine in that area, but then again
most other trap functions take struct pt_regs.  Anyways, you're gonna
post patches to convert trap functions to take pointer to pt_regs,
right?  Can you please fix this one up together with those?

Thanks.

-- 
tejun

Re: [PATCH 08/11] x86: use asm .macro instead of cpp #define in entry_32.S

[Tejun Heo]

Jeremy Fitzhardinge wrote:
> Tejun Heo wrote:
>> Impact: cleanup
>>
>> Use .macro instead of cpp #define where approriate.  This cleans up
>> code and will ease future changes.
>>   
> 
> I agree with this in principle - cpp macros are indeed very ugly - but
> in practise I've found asm macros to be very hard to work with.  When
> things go wrong, the gas error messages are completely useless (it only
> reports the error on the line where the macro was used, without any
> detail about where in the macro the problem lies), and as far as I know,
> there's no way to see the source with macros expanded.

Hmm... I originally did the conversion because I had some .if trick in
SAVE_ALL which got removed later.  Even after the removal, it
generally looked like a good idea as x86_64 asm was primarily using
.macro too.  I do like being able to see the post-processing output of
cpp too but for assembler disassembling the output often seem to give
enough clue, so I don't think it's a deal breaker.  So, lacking
decisive technical merit either way, I was aiming for consistency with
x86_64 (and I already had the patch in queue so...).

Ingo, what do you think?

Thanks.

-- 
tejun

Re: [PATCH 08/11] x86: use asm .macro instead of cpp #define in entry_32.S

[Jeremy Fitzhardinge]

Tejun Heo wrote:
> Hmm... I originally did the conversion because I had some .if trick in
> SAVE_ALL which got removed later.  Even after the removal, it
> generally looked like a good idea as x86_64 asm was primarily using
> .macro too.  I do like being able to see the post-processing output of
> cpp too but for assembler disassembling the output often seem to give
> enough clue,
That's assuming that the file assembles.  But if you're trying to 
assemble and the best error the assembler comes up with is "bad operand" 
on the line where you're using the macro, its extremely frustrating 
trying to work out where the problem actually lies.

    J

Re: [PATCH 10/11] x86: make lazy %gs optional on x86_32

[Tejun Heo]

Hello,

Jeremy Fitzhardinge wrote:
>> * Save and restore %gs along with other registers in entry_32.S unless
>>   LAZY_GS.  Note that this unfortunately adds "pushl $0" on SAVE_ALL
>>   even when LAZY_GS.  However, it adds no overhead to common exit path
>>   and simplifies entry path with error code.
>>   
> 
> I don't think it will make a measurable difference.  "subl $4, %esp"
> might be worth using too, or "lea -4(%esp), %esp" to avoid touching the
> flags.

You mean for PUSH_GS?  It's only used as a part of SAVE_ALL so I don't
think we need to worry about eflags.  The reason why I chose push $0
was because it was the shortest.

 push $0		: 6a 00
 sub $4, %esp		: 83 ec 04
 lea -4(%esp), %esp	: 8d 64 24 fc

>> +.macro POP_GS pop=0
>> +98:    popl %gs
>> +    CFI_ADJUST_CFA_OFFSET -4
>> +    /*CFI_RESTORE gs*/
>> +  .if \pop <> 0
>> +    add $\pop, %esp
>> +    CFI_ADJUST_CFA_OFFSET -\pop
>> +  .endif
>> +.endm
>> +.macro POP_GS_EX
>> +.pushsection .fixup, "ax"
>> +99:    movl $0, (%esp)
>> +    jmp 98b
>> +.section __ex_table, "a"
>> +    .align 4
>> +    .long 98b, 99b
>> +.popsection
>>   
> 
> Why not just fold the exception block into the POP_GS macro?  I don't
> think they need to be separated (ditto other exception handlers).

I originally did that but in ia32_sysenter_target(), it seems that the
exception stuff should be after CFI_ENDPROC, so I split them.  Don't
know much about debugging info so I tried to stick with what's already
there.  Is it okay to move exception block inside CFI_ENDPROC?

>> --- a/arch/x86/xen/enlighten.c
>> +++ b/arch/x86/xen/enlighten.c
>> @@ -323,13 +323,14 @@ static void load_TLS_descriptor(struct
>> thread_struct *t,
>>  static void xen_load_tls(struct thread_struct *t, unsigned int cpu)
>>  {
>>      /*
>> -     * XXX sleazy hack: If we're being called in a lazy-cpu zone,
>> -     * it means we're in a context switch, and %gs has just been
>> -     * saved.  This means we can zero it out to prevent faults on
>> -     * exit from the hypervisor if the next process has no %gs.
>> -     * Either way, it has been saved, and the new value will get
>> -     * loaded properly.  This will go away as soon as Xen has been
>> -     * modified to not save/restore %gs for normal hypercalls.
>> +     * XXX sleazy hack: If we're being called in a lazy-cpu zone
>> +     * and lazy gs handling is enabled, it means we're in a
>> +     * context switch, and %gs has just been saved.  This means we
>> +     * can zero it out to prevent faults on exit from the
>> +     * hypervisor if the next process has no %gs.  Either way, it
>> +     * has been saved, and the new value will get loaded properly.
>> +     * This will go away as soon as Xen has been modified to not
>> +     * save/restore %gs for normal hypercalls.
>>   
> 
> No, this change isn't quite right; the "and lazy gs handling is enabled"
> qualifier is wrong, because the condition the comment describes is
> independent of whether we're doing lazy gs handling.  This would be better:
> 
>    XXX sleazy hack: If we're being called in a lazy-cpu zone, it means
>    we're in a context switch, and %gs has definitely been saved (just
>    saved if we're doing lazy gs handling, and saved on entry if not).
>    This means we can zero it out to prevent faults on exit from the
>    hypervisor if the next process has no %gs. Either way, it has been
>    saved, and the new value will get loaded properly. This will go away
>    as soon as Xen has been modified to not save/restore %gs for normal
>    hypercalls.

Hmmm... I was (lazily) trying to add that %gs can only be cleared if
it's being managed lazily because otherwise it might be being used by
the kernel for other purposes.  :-)

Is my understanding correct?

Thanks.

-- 
tejun

Re: [PATCHSET x86/master] add stack protector support for x86_32

[Tejun Heo]

Ingo Molnar wrote:
>> I had a patch a while back that would convert those function to take a
>> pointer to pt_regs instead of assuming that the struct was passed by
>> value. [...]
> 
> Yes, that's the right solution. Getting a new call convention recognized
> is a 3 years timeframe project for a whole team of hackers. Adding a
> pointer is a 30 minutes project for one good kernel hacker ;)
> 
>> [...]  I'll take a stab at reworking it on top of this series.
> 
> Cool!

We do add some overhead that way and Linus was against it several
years ago, so the addition of asmlinkage_protect() macros.  Given that
the calling convention thing never happened through all the years and
modern machines probably wouldn't care much one way or the other, it
could just be about time to convert to pointer passing.

Thanks.

-- 
tejun

Re: [PATCH 10/11] x86: make lazy %gs optional on x86_32

[Jeremy Fitzhardinge]

Tejun Heo wrote:
> Hmmm... I was (lazily) trying to add that %gs can only be cleared if
> it's being managed lazily because otherwise it might be being used by
> the kernel for other purposes.  :-)
>
> Is my understanding correct?

Oh, hm, I see.  We only want to zero it if we're using lazy gs, 
otherwise it contains something useful...  I need to run now, but I'll 
look at it again in a few hours.

    J

Re: [PATCH 08/11] x86: use asm .macro instead of cpp #define in entry_32.S

[Ingo Molnar]

* Jeremy Fitzhardinge <jeremy@goop.org> wrote:

> Tejun Heo wrote:
>> Hmm... I originally did the conversion because I had some .if trick in
>> SAVE_ALL which got removed later.  Even after the removal, it
>> generally looked like a good idea as x86_64 asm was primarily using
>> .macro too.  I do like being able to see the post-processing output of
>> cpp too but for assembler disassembling the output often seem to give
>> enough clue,
>
> That's assuming that the file assembles.  But if you're trying to assemble
> and the best error the assembler comes up with is "bad operand" on the line
> where you're using the macro, its extremely frustrating trying to work out
> where the problem actually lies.

Yeah, i had that experience with GAS usability with all the CFI restructuring
we did.

But it should be pretty rare that we come up with instructions that do not
assemble - and even rarer that we come up with a _lot_ of new instructions
that do not assemble. The trick i used was to remove bits of the macro to
hone in on the bad instruction/construct. Stone-age tool but works.

	Ingo

Re: [PATCHSET x86/master] add stack protector support for x86_32

[Tejun Heo]

Ingo Molnar wrote:
> * Ingo Molnar <mingo@elte.hu> wrote:
> 
>> [...] I might not get around testing it today and pushing it out into tip:master, 
>> but i pushed out the core/percpu bits, should you queue up further changes.
> 
> ok, activated it for -tip testing, and there's a 64-bit build failure caused by 
> it:
> 
> arch/x86/kernel/head64.o: In function `x86_64_start_reservations':
> head64.c:(.init.text+0x26): undefined reference to `__stack_chk_guard'
> head64.c:(.init.text+0xc2): undefined reference to `__stack_chk_guard'
> arch/x86/kernel/head64.o: In function `x86_64_start_kernel':
> head64.c:(.init.text+0x104): undefined reference to `__stack_chk_guard'
> head64.c:(.init.text+0x1cd): undefined reference to `__stack_chk_guard'
> arch/x86/kernel/head.o: In function `reserve_ebda_region':
> head.c:(.init.text+0xb): undefined reference to `__stack_chk_guard'
> arch/x86/kernel/head.o:head.c:(.init.text+0x87): more undefined references to 
> `__stack_chk_guard' follow

Call to __stack_chk_guard is probably generated automatically.
Strangely, my gcc only generates calls to __stack_chk_fail.

 > gcc --version
 gcc (SUSE Linux) 4.3.2 [gcc-4_3-branch revision 141291]
 Copyright (C) 2008 Free Software Foundation, Inc.
 This is free software; see the source for copying conditions.  There is NO
 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 > nm build/vmlinux|grep __stack_chk_
 00000000f0fdf6cb A __crc___stack_chk_fail
 ffffffff80d53e50 r __kcrctab___stack_chk_fail
 ffffffff80d5ff81 r __kstrtab___stack_chk_fail
 ffffffff80d3d140 r __ksymtab___stack_chk_fail
 ffffffff80248619 T __stack_chk_fail

I'll try other compilers but which version are you using?  The
difference is that before the patchset, -fno-stack-protector was
always added whether stackprotector was enabled or not so this problem
wasn't visible (at the cost of bogus stackprotector of course).  We'll
probably need to add __stack_chk_guard or disable if gcc generates
such symbol.  I'll play with different gccs.

Thanks.

-- 
tejun

Re: [PATCHSET x86/master] add stack protector support for x86_32

[Tejun Heo]

Ingo Molnar wrote:
>> Note that i spread the patches the following way: #001-003 are in tip:x86/urgent, 
> 
> FYI, -tip testing found this new build failure with MATH_EMU:
> 
> arch/x86/kernel/traps.c:904: error: conflicting types for 'math_emulate'
> /home/mingo/tip/arch/x86/include/asm/traps.h:80: error: previous declaration of 'math_emulate' was here

This is the missing asmlinkage one, right?

Thanks.

-- 
tejun

Re: [PATCHSET x86/master] add stack protector support for x86_32

[Ingo Molnar]

* Tejun Heo <tj@kernel.org> wrote:

> Ingo Molnar wrote:
> >> Note that i spread the patches the following way: #001-003 are in tip:x86/urgent, 
> > 
> > FYI, -tip testing found this new build failure with MATH_EMU:
> > 
> > arch/x86/kernel/traps.c:904: error: conflicting types for 'math_emulate'
> > /home/mingo/tip/arch/x86/include/asm/traps.h:80: error: previous declaration of 'math_emulate' was here
> 
> This is the missing asmlinkage one, right?

yeah - fixed this already by amending that commit. No new problems with
these particular commits.

	Ingo

Re: [PATCHSET x86/master] add stack protector support for x86_32

[Tejun Heo]

Tejun Heo wrote:
> Ingo Molnar wrote:
>> * Ingo Molnar <mingo@elte.hu> wrote:
>>
>>> [...] I might not get around testing it today and pushing it out into tip:master, 
>>> but i pushed out the core/percpu bits, should you queue up further changes.
>> ok, activated it for -tip testing, and there's a 64-bit build failure caused by 
>> it:
>>
>> arch/x86/kernel/head64.o: In function `x86_64_start_reservations':
>> head64.c:(.init.text+0x26): undefined reference to `__stack_chk_guard'
>> head64.c:(.init.text+0xc2): undefined reference to `__stack_chk_guard'
>> arch/x86/kernel/head64.o: In function `x86_64_start_kernel':
>> head64.c:(.init.text+0x104): undefined reference to `__stack_chk_guard'
>> head64.c:(.init.text+0x1cd): undefined reference to `__stack_chk_guard'
>> arch/x86/kernel/head.o: In function `reserve_ebda_region':
>> head.c:(.init.text+0xb): undefined reference to `__stack_chk_guard'
>> arch/x86/kernel/head.o:head.c:(.init.text+0x87): more undefined references to 
>> `__stack_chk_guard' follow
> 
> Call to __stack_chk_guard is probably generated automatically.
> Strangely, my gcc only generates calls to __stack_chk_fail.
> 
>  > gcc --version
>  gcc (SUSE Linux) 4.3.2 [gcc-4_3-branch revision 141291]
>  Copyright (C) 2008 Free Software Foundation, Inc.
>  This is free software; see the source for copying conditions.  There is NO
>  warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
>  > nm build/vmlinux|grep __stack_chk_
>  00000000f0fdf6cb A __crc___stack_chk_fail
>  ffffffff80d53e50 r __kcrctab___stack_chk_fail
>  ffffffff80d5ff81 r __kstrtab___stack_chk_fail
>  ffffffff80d3d140 r __ksymtab___stack_chk_fail
>  ffffffff80248619 T __stack_chk_fail
> 
> I'll try other compilers but which version are you using?  The
> difference is that before the patchset, -fno-stack-protector was
> always added whether stackprotector was enabled or not so this problem
> wasn't visible (at the cost of bogus stackprotector of course).  We'll
> probably need to add __stack_chk_guard or disable if gcc generates
> such symbol.  I'll play with different gccs.

Can't reproduce with gcc-4.1 or 4.2.  Any chance you're using distcc
w/ a build machine w/ glibc < 2.4?  __stack_chk_guard is the symbol
gcc fetches stack canary from if TLS is not supported, so somehow gcc
thought that TLS wasn't available while building head64.

Thanks.

-- 
tejun

Re: [PATCHSET x86/master] add stack protector support for x86_32

[Ingo Molnar]

* Tejun Heo <tj@kernel.org> wrote:

> Ingo Molnar wrote:
> > * Ingo Molnar <mingo@elte.hu> wrote:
> > 
> >> [...] I might not get around testing it today and pushing it out into tip:master, 
> >> but i pushed out the core/percpu bits, should you queue up further changes.
> > 
> > ok, activated it for -tip testing, and there's a 64-bit build failure caused by 
> > it:
> > 
> > arch/x86/kernel/head64.o: In function `x86_64_start_reservations':
> > head64.c:(.init.text+0x26): undefined reference to `__stack_chk_guard'
> > head64.c:(.init.text+0xc2): undefined reference to `__stack_chk_guard'
> > arch/x86/kernel/head64.o: In function `x86_64_start_kernel':
> > head64.c:(.init.text+0x104): undefined reference to `__stack_chk_guard'
> > head64.c:(.init.text+0x1cd): undefined reference to `__stack_chk_guard'
> > arch/x86/kernel/head.o: In function `reserve_ebda_region':
> > head.c:(.init.text+0xb): undefined reference to `__stack_chk_guard'
> > arch/x86/kernel/head.o:head.c:(.init.text+0x87): more undefined references to 
> > `__stack_chk_guard' follow
> 
> Call to __stack_chk_guard is probably generated automatically.
> Strangely, my gcc only generates calls to __stack_chk_fail.
> 
>  > gcc --version
>  gcc (SUSE Linux) 4.3.2 [gcc-4_3-branch revision 141291]
>  Copyright (C) 2008 Free Software Foundation, Inc.
>  This is free software; see the source for copying conditions.  There is NO
>  warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
>  > nm build/vmlinux|grep __stack_chk_
>  00000000f0fdf6cb A __crc___stack_chk_fail
>  ffffffff80d53e50 r __kcrctab___stack_chk_fail
>  ffffffff80d5ff81 r __kstrtab___stack_chk_fail
>  ffffffff80d3d140 r __ksymtab___stack_chk_fail
>  ffffffff80248619 T __stack_chk_fail
> 
> I'll try other compilers but which version are you using?  The
> difference is that before the patchset, -fno-stack-protector was
> always added whether stackprotector was enabled or not so this problem
> wasn't visible (at the cost of bogus stackprotector of course).  We'll
> probably need to add __stack_chk_guard or disable if gcc generates
> such symbol.  I'll play with different gccs.

that was with a crosscompiler:

aldebaran:~> /opt/crosstool/gcc-4.2.3-glibc-2.3.6/x86_64-unknown-linux-gnu/bin/x86_64-unknown-linux-gnu-gcc -v
Using built-in specs.
Target: x86_64-unknown-linux-gnu
Configured with: 
/home/mingo/s/crosstool-0.43/build/x86_64-unknown-linux-gnu/gcc-4.2.3-glibc-2.3.6/gcc-4.2.3/configure 
--target=x86_64-unknown-linux-gnu --host=i686-host_pc-linux-gnu 
--prefix=/opt/crosstool/gcc-4.2.3-glibc-2.3.6/x86_64-unknown-linux-gnu 
--disable-multilib 
--with-sysroot=/opt/crosstool/gcc-4.2.3-glibc-2.3.6/x86_64-unknown-linux-gnu/x86_64-unknown-linux-gnu/sys-root 
--with-local-prefix=/opt/crosstool/gcc-4.2.3-glibc-2.3.6/x86_64-unknown-linux-gnu/x86_64-unknown-linux-gnu/sys-root 
--disable-nls --enable-threads=posix --enable-symvers=gnu --enable-__cxa_atexit 
--enable-languages=c --enable-shared --enable-c99 --enable-long-long
Thread model: posix
gcc version 4.2.3

The problem is i think GCC's brain-dead stackprotector support - having different 
models for user-space and kernel-space stackprotector. So this compiler is not 
_able_ to actually build a stackprotector kernel - but we should auto-discover that.

	Ingo

Re: [PATCHSET x86/master] add stack protector support for x86_32

[Ingo Molnar]

* Tejun Heo <tj@kernel.org> wrote:

> Tejun Heo wrote:
> > Ingo Molnar wrote:
> >> * Ingo Molnar <mingo@elte.hu> wrote:
> >>
> >>> [...] I might not get around testing it today and pushing it out into tip:master, 
> >>> but i pushed out the core/percpu bits, should you queue up further changes.
> >> ok, activated it for -tip testing, and there's a 64-bit build failure caused by 
> >> it:
> >>
> >> arch/x86/kernel/head64.o: In function `x86_64_start_reservations':
> >> head64.c:(.init.text+0x26): undefined reference to `__stack_chk_guard'
> >> head64.c:(.init.text+0xc2): undefined reference to `__stack_chk_guard'
> >> arch/x86/kernel/head64.o: In function `x86_64_start_kernel':
> >> head64.c:(.init.text+0x104): undefined reference to `__stack_chk_guard'
> >> head64.c:(.init.text+0x1cd): undefined reference to `__stack_chk_guard'
> >> arch/x86/kernel/head.o: In function `reserve_ebda_region':
> >> head.c:(.init.text+0xb): undefined reference to `__stack_chk_guard'
> >> arch/x86/kernel/head.o:head.c:(.init.text+0x87): more undefined references to 
> >> `__stack_chk_guard' follow
> > 
> > Call to __stack_chk_guard is probably generated automatically.
> > Strangely, my gcc only generates calls to __stack_chk_fail.
> > 
> >  > gcc --version
> >  gcc (SUSE Linux) 4.3.2 [gcc-4_3-branch revision 141291]
> >  Copyright (C) 2008 Free Software Foundation, Inc.
> >  This is free software; see the source for copying conditions.  There is NO
> >  warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
> >  > nm build/vmlinux|grep __stack_chk_
> >  00000000f0fdf6cb A __crc___stack_chk_fail
> >  ffffffff80d53e50 r __kcrctab___stack_chk_fail
> >  ffffffff80d5ff81 r __kstrtab___stack_chk_fail
> >  ffffffff80d3d140 r __ksymtab___stack_chk_fail
> >  ffffffff80248619 T __stack_chk_fail
> > 
> > I'll try other compilers but which version are you using?  The
> > difference is that before the patchset, -fno-stack-protector was
> > always added whether stackprotector was enabled or not so this problem
> > wasn't visible (at the cost of bogus stackprotector of course).  We'll
> > probably need to add __stack_chk_guard or disable if gcc generates
> > such symbol.  I'll play with different gccs.
> 
> Can't reproduce with gcc-4.1 or 4.2.  Any chance you're using distcc
> w/ a build machine w/ glibc < 2.4?  __stack_chk_guard is the symbol
> gcc fetches stack canary from if TLS is not supported, so somehow gcc
> thought that TLS wasn't available while building head64.

yeah - i also used distcc. Maybe the nostackp makefile magic gets confused
about that?

	Ingo

Re: [PATCHSET x86/master] add stack protector support for x86_32

[Tejun Heo]

Ingo Molnar wrote:
>>> I'll try other compilers but which version are you using?  The
>>> difference is that before the patchset, -fno-stack-protector was
>>> always added whether stackprotector was enabled or not so this problem
>>> wasn't visible (at the cost of bogus stackprotector of course).  We'll
>>> probably need to add __stack_chk_guard or disable if gcc generates
>>> such symbol.  I'll play with different gccs.
>> Can't reproduce with gcc-4.1 or 4.2.  Any chance you're using distcc
>> w/ a build machine w/ glibc < 2.4?  __stack_chk_guard is the symbol
>> gcc fetches stack canary from if TLS is not supported, so somehow gcc
>> thought that TLS wasn't available while building head64.
> 
> yeah - i also used distcc. Maybe the nostackp makefile magic gets confused
> about that?

It seems that even with the same gcc versions, gcc built against libc
w/o TLS support generates __stack_chk_guard, so if you mix the two
flavors, the has-stack-protector check can be compiled on machines w/
TLS while some other files end up being built on machines w/o TLS
support thus circumventing the support check.  Can you please see
whether non-distcc build fails too?

Thanks.

-- 
tejun

Re: [PATCH 11/11] x86: implement x86_32 stack protector

[Brian Gerst]

On Mon, Feb 9, 2009 at 8:39 AM, Tejun Heo <tj@kernel.org> wrote:
> Impact: stack protector for x86_32
>
> Implement stack protector for x86_32.  GDT entry 28 is used for it.
> It's set to point to stack_canary-20 and have the length of 24 bytes.
> CONFIG_CC_STACKPROTECTOR turns off CONFIG_X86_32_LAZY_GS and sets %gs
> to the stack canary segment on entry.  As %gs is otherwise unused by
> the kernel, the canary can be anywhere.  It's defined as a percpu
> variable.
>
> x86_32 exception handlers take register frame on stack directly as
> struct pt_regs.  With -fstack-protector turned on, gcc copies the
> whole structure after the stack canary and (of course) doesn't copy
> back on return thus losing all changed.  For now, -fno-stack-protector
> is added to all files which contain those functions.  We definitely
> need something better.
>
> Signed-off-by: Tejun Heo <tj@kernel.org>

Am I missing something, or does this patch not actually implement the
offset of the start of the segment by 20 from the stack_canary
variable?

--
Brian Gerst

Re: [PATCH 11/11] x86: implement x86_32 stack protector

[Tejun Heo]

Brian Gerst wrote:
> On Mon, Feb 9, 2009 at 8:39 AM, Tejun Heo <tj@kernel.org> wrote:
>> Impact: stack protector for x86_32
>>
>> Implement stack protector for x86_32.  GDT entry 28 is used for it.
>> It's set to point to stack_canary-20 and have the length of 24 bytes.
>> CONFIG_CC_STACKPROTECTOR turns off CONFIG_X86_32_LAZY_GS and sets %gs
>> to the stack canary segment on entry.  As %gs is otherwise unused by
>> the kernel, the canary can be anywhere.  It's defined as a percpu
>> variable.
>>
>> x86_32 exception handlers take register frame on stack directly as
>> struct pt_regs.  With -fstack-protector turned on, gcc copies the
>> whole structure after the stack canary and (of course) doesn't copy
>> back on return thus losing all changed.  For now, -fno-stack-protector
>> is added to all files which contain those functions.  We definitely
>> need something better.
>>
>> Signed-off-by: Tejun Heo <tj@kernel.org>
> 
> Am I missing something, or does this patch not actually implement the
> offset of the start of the segment by 20 from the stack_canary
> variable?

Yeah, it seems I forgot to subtract 20 from the address.  Will prep a
patch.  Thanks for spotting it.

-- 
tejun

[PATCH x86#core/percpu] x86: fix x86_32 stack protector bugs

[Tejun Heo]

Impact: fix x86_32 stack protector

Brian Gerst found out that %gs was being initialized to stack_canary
instead of stack_canary - 20, which basically gave the same canary
value for all threads.  Fixing this also exposed the following bugs.

* cpu_idle() didn't call boot_init_stack_canary()

* stack canary switching in switch_to() was being done too late making
  the initial run of a new thread use the old stack canary value.

Fix all of them and while at it update comment in cpu_idle() about
calling boot_init_stack_canary().

Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Brian Gerst <brgerst@gmail.com>
---
 arch/x86/include/asm/stackprotector.h |    2 +-
 arch/x86/include/asm/system.h         |    8 +++-----
 arch/x86/kernel/head_32.S             |    1 +
 arch/x86/kernel/process_32.c          |   10 ++++++++++
 arch/x86/kernel/process_64.c          |   11 +++++------
 5 files changed, 20 insertions(+), 12 deletions(-)

diff --git a/arch/x86/include/asm/stackprotector.h b/arch/x86/include/asm/stackprotector.h
index fa7e5bd..c2d742c 100644
--- a/arch/x86/include/asm/stackprotector.h
+++ b/arch/x86/include/asm/stackprotector.h
@@ -85,7 +85,7 @@ static __always_inline void boot_init_stack_canary(void)
 static inline void setup_stack_canary_segment(int cpu)
 {
 #ifdef CONFIG_X86_32
-	unsigned long canary = (unsigned long)&per_cpu(stack_canary, cpu);
+	unsigned long canary = (unsigned long)&per_cpu(stack_canary, cpu) - 20;
 	struct desc_struct *gdt_table = get_cpu_gdt_table(cpu);
 	struct desc_struct desc;
 
diff --git a/arch/x86/include/asm/system.h b/arch/x86/include/asm/system.h
index 2692ee8..7a80f72 100644
--- a/arch/x86/include/asm/system.h
+++ b/arch/x86/include/asm/system.h
@@ -25,13 +25,11 @@ struct task_struct *__switch_to(struct task_struct *prev,
 
 #ifdef CONFIG_CC_STACKPROTECTOR
 #define __switch_canary							\
-	"movl "__percpu_arg([current_task])",%%ebx\n\t"			\
-	"movl %P[task_canary](%%ebx),%%ebx\n\t"				\
-	"movl %%ebx,"__percpu_arg([stack_canary])"\n\t"
+	"movl %P[task_canary](%[next]), %%ebx\n\t"			\
+	"movl %%ebx, "__percpu_arg([stack_canary])"\n\t"
 #define __switch_canary_oparam						\
 	, [stack_canary] "=m" (per_cpu_var(stack_canary))
 #define __switch_canary_iparam						\
-	, [current_task] "m" (per_cpu_var(current_task))		\
 	, [task_canary] "i" (offsetof(struct task_struct, stack_canary))
 #else	/* CC_STACKPROTECTOR */
 #define __switch_canary
@@ -60,9 +58,9 @@ do {									\
 		     "movl %[next_sp],%%esp\n\t"	/* restore ESP   */ \
 		     "movl $1f,%[prev_ip]\n\t"	/* save    EIP   */	\
 		     "pushl %[next_ip]\n\t"	/* restore EIP   */	\
+		     __switch_canary					\
 		     "jmp __switch_to\n"	/* regparm call  */	\
 		     "1:\t"						\
-		     __switch_canary					\
 		     "popl %%ebp\n\t"		/* restore EBP   */	\
 		     "popfl\n"			/* restore flags */	\
 									\
diff --git a/arch/x86/kernel/head_32.S b/arch/x86/kernel/head_32.S
index 924e316..cf21fd0 100644
--- a/arch/x86/kernel/head_32.S
+++ b/arch/x86/kernel/head_32.S
@@ -447,6 +447,7 @@ is386:	movl $2,%ecx		# set MP
 	jne 1f
 	movl $per_cpu__gdt_page,%eax
 	movl $per_cpu__stack_canary,%ecx
+	subl $20, %ecx
 	movw %cx, 8 * GDT_ENTRY_STACK_CANARY + 2(%eax)
 	shrl $16, %ecx
 	movb %cl, 8 * GDT_ENTRY_STACK_CANARY + 4(%eax)
diff --git a/arch/x86/kernel/process_32.c b/arch/x86/kernel/process_32.c
index 9a62383..b50604b 100644
--- a/arch/x86/kernel/process_32.c
+++ b/arch/x86/kernel/process_32.c
@@ -11,6 +11,7 @@
 
 #include <stdarg.h>
 
+#include <linux/stackprotector.h>
 #include <linux/cpu.h>
 #include <linux/errno.h>
 #include <linux/sched.h>
@@ -91,6 +92,15 @@ void cpu_idle(void)
 {
 	int cpu = smp_processor_id();
 
+	/*
+	 * If we're the non-boot CPU, nothing set the stack canary up
+	 * for us.  CPU0 already has it initialized but no harm in
+	 * doing it again.  This is a good place for updating it, as
+	 * we wont ever return from this function (so the invalid
+	 * canaries already on the stack wont ever trigger).
+	 */
+	boot_init_stack_canary();
+
 	current_thread_info()->status |= TS_POLLING;
 
 	/* endless idle loop with no priority at all */
diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c
index 8eb169e..836ef65 100644
--- a/arch/x86/kernel/process_64.c
+++ b/arch/x86/kernel/process_64.c
@@ -120,12 +120,11 @@ void cpu_idle(void)
 	current_thread_info()->status |= TS_POLLING;
 
 	/*
-	 * If we're the non-boot CPU, nothing set the PDA stack
-	 * canary up for us - and if we are the boot CPU we have
-	 * a 0 stack canary. This is a good place for updating
-	 * it, as we wont ever return from this function (so the
-	 * invalid canaries already on the stack wont ever
-	 * trigger):
+	 * If we're the non-boot CPU, nothing set the stack canary up
+	 * for us.  CPU0 already has it initialized but no harm in
+	 * doing it again.  This is a good place for updating it, as
+	 * we wont ever return from this function (so the invalid
+	 * canaries already on the stack wont ever trigger).
 	 */
 	boot_init_stack_canary();
 
-- 
1.6.0.2

Re: [PATCH x86#core/percpu] x86: fix x86_32 stack protector bugs

[Ingo Molnar]

* Tejun Heo <tj@kernel.org> wrote:

> Impact: fix x86_32 stack protector
> 
> Brian Gerst found out that %gs was being initialized to stack_canary
> instead of stack_canary - 20, which basically gave the same canary
> value for all threads.  Fixing this also exposed the following bugs.
> 
> * cpu_idle() didn't call boot_init_stack_canary()
> 
> * stack canary switching in switch_to() was being done too late making
>   the initial run of a new thread use the old stack canary value.
> 
> Fix all of them and while at it update comment in cpu_idle() about
> calling boot_init_stack_canary().
> 
> Signed-off-by: Tejun Heo <tj@kernel.org>
> Reported-by: Brian Gerst <brgerst@gmail.com>
> ---
>  arch/x86/include/asm/stackprotector.h |    2 +-
>  arch/x86/include/asm/system.h         |    8 +++-----
>  arch/x86/kernel/head_32.S             |    1 +
>  arch/x86/kernel/process_32.c          |   10 ++++++++++
>  arch/x86/kernel/process_64.c          |   11 +++++------
>  5 files changed, 20 insertions(+), 12 deletions(-)

Applied to tip:core/percpu, thanks guys!

I never got around to finding his bug in practice as the latest bits of 
tip:core/percpu are not in tip/master at the moment, due to that 64-bit
build failure.

	Ingo

Re: [PATCHSET x86/master] add stack protector support for x86_32

[Ingo Molnar]

* Tejun Heo <tj@kernel.org> wrote:

> Ingo Molnar wrote:
> >>> I'll try other compilers but which version are you using?  The
> >>> difference is that before the patchset, -fno-stack-protector was
> >>> always added whether stackprotector was enabled or not so this problem
> >>> wasn't visible (at the cost of bogus stackprotector of course).  We'll
> >>> probably need to add __stack_chk_guard or disable if gcc generates
> >>> such symbol.  I'll play with different gccs.
> >> Can't reproduce with gcc-4.1 or 4.2.  Any chance you're using distcc
> >> w/ a build machine w/ glibc < 2.4?  __stack_chk_guard is the symbol
> >> gcc fetches stack canary from if TLS is not supported, so somehow gcc
> >> thought that TLS wasn't available while building head64.
> > 
> > yeah - i also used distcc. Maybe the nostackp makefile magic gets confused
> > about that?
> 
> It seems that even with the same gcc versions, gcc built against libc
> w/o TLS support generates __stack_chk_guard, so if you mix the two
> flavors, the has-stack-protector check can be compiled on machines w/
> TLS while some other files end up being built on machines w/o TLS
> support thus circumventing the support check.  Can you please see
> whether non-distcc build fails too?

That build succeeds:

rhea:~/tip> make -j30 bzImage ARCH=x86_64 CROSS_COMPILE='/opt/crosstool/gcc-4.2.3-glibc-2.3.6/x86_64-unknown-linux-gnu/bin/x86_64-unknown-linux-gnu-'
/home/mingo/tip/arch/x86/Makefile:82: stack protector enabled but no compiler support
  CHK     include/linux/version.h
[...]
BFD: arch/x86/boot/compressed/vmlinux.bin: warning: allocated section `.bss' not in segment
[...]
Root device is (8, 3)
Setup is 11996 bytes (padded to 12288 bytes).
System is 5690 kB
CRC be1b2e21
Kernel: arch/x86/boot/bzImage is ready  (#3)

Some shell variable expansion bug? If CROSS_COMPILE is not a single word
we fail to detect the compiler borkage at arch/x86/Makefile line 82?

	Ingo

[PATCH] stackprotector: fix multi-word cross-builds

[Ingo Molnar]

* Ingo Molnar <mingo@elte.hu> wrote:

> 
> * Tejun Heo <tj@kernel.org> wrote:
> 
> > Ingo Molnar wrote:
> > >>> I'll try other compilers but which version are you using?  The
> > >>> difference is that before the patchset, -fno-stack-protector was
> > >>> always added whether stackprotector was enabled or not so this problem
> > >>> wasn't visible (at the cost of bogus stackprotector of course).  We'll
> > >>> probably need to add __stack_chk_guard or disable if gcc generates
> > >>> such symbol.  I'll play with different gccs.
> > >> Can't reproduce with gcc-4.1 or 4.2.  Any chance you're using distcc
> > >> w/ a build machine w/ glibc < 2.4?  __stack_chk_guard is the symbol
> > >> gcc fetches stack canary from if TLS is not supported, so somehow gcc
> > >> thought that TLS wasn't available while building head64.
> > > 
> > > yeah - i also used distcc. Maybe the nostackp makefile magic gets confused
> > > about that?
> > 
> > It seems that even with the same gcc versions, gcc built against libc
> > w/o TLS support generates __stack_chk_guard, so if you mix the two
> > flavors, the has-stack-protector check can be compiled on machines w/
> > TLS while some other files end up being built on machines w/o TLS
> > support thus circumventing the support check.  Can you please see
> > whether non-distcc build fails too?
> 
> That build succeeds:
> 
> rhea:~/tip> make -j30 bzImage ARCH=x86_64 CROSS_COMPILE='/opt/crosstool/gcc-4.2.3-glibc-2.3.6/x86_64-unknown-linux-gnu/bin/x86_64-unknown-linux-gnu-'
> /home/mingo/tip/arch/x86/Makefile:82: stack protector enabled but no compiler support
>   CHK     include/linux/version.h
> [...]
> BFD: arch/x86/boot/compressed/vmlinux.bin: warning: allocated section `.bss' not in segment
> [...]
> Root device is (8, 3)
> Setup is 11996 bytes (padded to 12288 bytes).
> System is 5690 kB
> CRC be1b2e21
> Kernel: arch/x86/boot/bzImage is ready  (#3)
> 
> Some shell variable expansion bug? If CROSS_COMPILE is not a single word
> we fail to detect the compiler borkage at arch/x86/Makefile line 82?

Yep - i'm testing the fix below now - it's looking good so far.

	Ingo

---------->
>From ebd9026d9f8499abc60d82d949bd37f88fe34a41 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Wed, 11 Feb 2009 12:17:29 +0100
Subject: [PATCH] stackprotector: fix multi-word cross-builds

Stackprotector builds were failing if CROSS_COMPILER was more than
a single world (such as when distcc was used) - because the check
scripts used $1 instead of $*.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 scripts/gcc-x86_32-has-stack-protector.sh |    2 +-
 scripts/gcc-x86_64-has-stack-protector.sh |    2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/scripts/gcc-x86_32-has-stack-protector.sh b/scripts/gcc-x86_32-has-stack-protector.sh
index 4fdf6ce..29493dc 100644
--- a/scripts/gcc-x86_32-has-stack-protector.sh
+++ b/scripts/gcc-x86_32-has-stack-protector.sh
@@ -1,6 +1,6 @@
 #!/bin/sh
 
-echo "int foo(void) { char X[200]; return 3; }" | $1 -S -xc -c -O0 -fstack-protector - -o - 2> /dev/null | grep -q "%gs"
+echo "int foo(void) { char X[200]; return 3; }" | $* -S -xc -c -O0 -fstack-protector - -o - 2> /dev/null | grep -q "%gs"
 if [ "$?" -eq "0" ] ; then
 	echo y
 else
diff --git a/scripts/gcc-x86_64-has-stack-protector.sh b/scripts/gcc-x86_64-has-stack-protector.sh
index 2d69fcd..afaec61 100644
--- a/scripts/gcc-x86_64-has-stack-protector.sh
+++ b/scripts/gcc-x86_64-has-stack-protector.sh
@@ -1,6 +1,6 @@
 #!/bin/sh
 
-echo "int foo(void) { char X[200]; return 3; }" | $1 -S -xc -c -O0 -mcmodel=kernel -fstack-protector - -o - 2> /dev/null | grep -q "%gs"
+echo "int foo(void) { char X[200]; return 3; }" | $* -S -xc -c -O0 -mcmodel=kernel -fstack-protector - -o - 2> /dev/null | grep -q "%gs"
 if [ "$?" -eq "0" ] ; then
 	echo y
 else

Re: [PATCH x86#core/percpu] x86: fix x86_32 stack protector bugs

[Tejun Heo]

Ingo Molnar wrote:
> * Tejun Heo <tj@kernel.org> wrote:
> 
>> Impact: fix x86_32 stack protector
>>
>> Brian Gerst found out that %gs was being initialized to stack_canary
>> instead of stack_canary - 20, which basically gave the same canary
>> value for all threads.  Fixing this also exposed the following bugs.
>>
>> * cpu_idle() didn't call boot_init_stack_canary()
>>
>> * stack canary switching in switch_to() was being done too late making
>>   the initial run of a new thread use the old stack canary value.
>>
>> Fix all of them and while at it update comment in cpu_idle() about
>> calling boot_init_stack_canary().
>>
>> Signed-off-by: Tejun Heo <tj@kernel.org>
>> Reported-by: Brian Gerst <brgerst@gmail.com>
>> ---
>>  arch/x86/include/asm/stackprotector.h |    2 +-
>>  arch/x86/include/asm/system.h         |    8 +++-----
>>  arch/x86/kernel/head_32.S             |    1 +
>>  arch/x86/kernel/process_32.c          |   10 ++++++++++
>>  arch/x86/kernel/process_64.c          |   11 +++++------
>>  5 files changed, 20 insertions(+), 12 deletions(-)
> 
> Applied to tip:core/percpu, thanks guys!
> 
> I never got around to finding his bug in practice as the latest bits of 
> tip:core/percpu are not in tip/master at the moment, due to that 64-bit
> build failure.

I was kind of waiting for your test result (whether the build issue
can be reproduced without distcc) before going ahead and building a
cross compiler.  I don't see how the cross compiler would pass the
gcc-x86_*-has-stack-protector.sh test which builds a minimalistic c
file and greps for %gs access.

Thanks.

-- 
tejun

Re: [PATCH] stackprotector: fix multi-word cross-builds

[Tejun Heo]

Ingo Molnar wrote:
> * Ingo Molnar <mingo@elte.hu> wrote:
> 
>> * Tejun Heo <tj@kernel.org> wrote:
>>
>>> Ingo Molnar wrote:
>>>>>> I'll try other compilers but which version are you using?  The
>>>>>> difference is that before the patchset, -fno-stack-protector was
>>>>>> always added whether stackprotector was enabled or not so this problem
>>>>>> wasn't visible (at the cost of bogus stackprotector of course).  We'll
>>>>>> probably need to add __stack_chk_guard or disable if gcc generates
>>>>>> such symbol.  I'll play with different gccs.
>>>>> Can't reproduce with gcc-4.1 or 4.2.  Any chance you're using distcc
>>>>> w/ a build machine w/ glibc < 2.4?  __stack_chk_guard is the symbol
>>>>> gcc fetches stack canary from if TLS is not supported, so somehow gcc
>>>>> thought that TLS wasn't available while building head64.
>>>> yeah - i also used distcc. Maybe the nostackp makefile magic gets confused
>>>> about that?
>>> It seems that even with the same gcc versions, gcc built against libc
>>> w/o TLS support generates __stack_chk_guard, so if you mix the two
>>> flavors, the has-stack-protector check can be compiled on machines w/
>>> TLS while some other files end up being built on machines w/o TLS
>>> support thus circumventing the support check.  Can you please see
>>> whether non-distcc build fails too?
>> That build succeeds:
>>
>> rhea:~/tip> make -j30 bzImage ARCH=x86_64 CROSS_COMPILE='/opt/crosstool/gcc-4.2.3-glibc-2.3.6/x86_64-unknown-linux-gnu/bin/x86_64-unknown-linux-gnu-'
>> /home/mingo/tip/arch/x86/Makefile:82: stack protector enabled but no compiler support
>>   CHK     include/linux/version.h
>> [...]
>> BFD: arch/x86/boot/compressed/vmlinux.bin: warning: allocated section `.bss' not in segment
>> [...]
>> Root device is (8, 3)
>> Setup is 11996 bytes (padded to 12288 bytes).
>> System is 5690 kB
>> CRC be1b2e21
>> Kernel: arch/x86/boot/bzImage is ready  (#3)
>>
>> Some shell variable expansion bug? If CROSS_COMPILE is not a single word
>> we fail to detect the compiler borkage at arch/x86/Makefile line 82?
> 
> Yep - i'm testing the fix below now - it's looking good so far.

Ah... okay.  No wonder I couldn't reproduce the problem.  :-)

Thanks for hunting it down.

-- 
tejun