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authorIngo Molnar <mingo@elte.hu>2008-05-12 21:20:41 +0200
committerThomas Gleixner <tglx@linutronix.de>2008-05-23 20:31:27 +0200
commitffdc1a09ae7e2cbd714a446ee38a27f625b5f1c8 (patch)
tree6f201715b559fe3b6a023df09b1ad416998cdb3d /include/linux/linkage.h
parent502825282e6f79c975a644afc124432ec1744de4 (diff)
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tracing: add notrace to 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> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'include/linux/linkage.h')
-rw-r--r--include/linux/linkage.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/linkage.h b/include/linux/linkage.h
index 2119610..14f329c 100644
--- a/include/linux/linkage.h
+++ b/include/linux/linkage.h
@@ -3,6 +3,8 @@
#include <asm/linkage.h>
+#define notrace __attribute__((no_instrument_function))
+
#ifdef __cplusplus
#define CPP_ASMLINKAGE extern "C"
#else
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