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x86, tracing: add notrace to asm-x86/linkage.h 

notrace signals that a function should not be traced. Most of the
time this is used by tracers to annotate code that cannot be
traced - it's in a volatile state (such as in user vdso context
or NMI context) or it's in the tracer internals.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Ingo Molnar 2008-04-17 17:40:51 +02:00
parent 11ae9dd481
commit 78a9909aab
1 changed files with 3 additions and 0 deletions
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3
include/asm-x86/linkage.h
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@ -1,6 +1,9 @@
#ifndef __ASM_LINKAGE_H
#define __ASM_LINKAGE_H
#undef notrace
#define notrace __attribute__((no_instrument_function))
#ifdef CONFIG_X86_64
#define __ALIGN .p2align 4,,15
#define __ALIGN_STR ".p2align 4,,15"