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| author | Ingo Molnar <mingo@elte.hu> | 2010-03-12 10:20:57 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2010-03-12 10:20:59 +0100 |
| commit | 937779db13fb6cb621e28d9ae0a6cf1d05b57d05 (patch) | |
| tree | 6c27402677c347c4dc01980de78c270630588847 /arch/x86/kernel/dumpstack.h | |
| parent | 6230f2c7ef01a69e2ba9370326572c287209d32a (diff) | |
| parent | 9f591fd76afdc0e5192e9ed00a36f8efc0b4dfe6 (diff) | |
Merge branch 'perf/urgent' into perf/core
Merge reason: We want to queue up a dependent patch.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/kernel/dumpstack.h')
| -rw-r--r-- | arch/x86/kernel/dumpstack.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/arch/x86/kernel/dumpstack.h b/arch/x86/kernel/dumpstack.h index 4fd1420faffa..29e5f7c845b2 100644 --- a/arch/x86/kernel/dumpstack.h +++ b/arch/x86/kernel/dumpstack.h @@ -29,4 +29,19 @@ struct stack_frame { struct stack_frame *next_frame; unsigned long return_address; }; + +static inline unsigned long rewind_frame_pointer(int n) +{ + struct stack_frame *frame; + + get_bp(frame); + +#ifdef CONFIG_FRAME_POINTER + while (n--) + frame = frame->next_frame; #endif + + return (unsigned long)frame; +} + +#endif /* DUMPSTACK_H */ |