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| author |   Ingo Molnar <mingo@elte.hu> | 2009-03-08 16:48:51 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-03-08 16:48:51 +0100 |
| commit | dba58e39ced7af63f2748d12bbb2b4ac83c72391 (patch) | |
| tree | ee15a5e7667b51d0d0f7e8cb39064652f7c84c28 /arch/x86/include/asm/segment.h | |
| parent | tracing: trace_bprintk() cleanups (diff) | |
| parent | x86: implement atomic text_poke() via fixmap (diff) | |
| download | linux-dev-dba58e39ced7af63f2748d12bbb2b4ac83c72391.tar.xz linux-dev-dba58e39ced7af63f2748d12bbb2b4ac83c72391.zip | |
Merge branches 'tracing/doc', 'tracing/ftrace', 'tracing/printk' and 'tracing/textedit' into tracing/core
Diffstat (limited to 'arch/x86/include/asm/segment.h')
| -rw-r--r-- | arch/x86/include/asm/segment.h | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/arch/x86/include/asm/segment.h b/arch/x86/include/asm/segment.h index 1dc1b51ac623..14e0ed86a6f9 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 /* |