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| author | Steven Rostedt | 2011-04-13 22:43:29 +0200 |
|---|---|---|
| committer | Steven Rostedt | 2011-05-17 16:41:55 +0200 |
| commit | 406a733db0052fed66d17008430b6047ecea7b92 (patch) | |
| tree | 8c5304de8ac9a009983686b2f8b05b8fa115f0d2 | |
| parent | ftrace: Avoid recording mcount on .init sections directly (diff) | |
| download | kernel-qcow2-linux-406a733db0052fed66d17008430b6047ecea7b92.tar.gz kernel-qcow2-linux-406a733db0052fed66d17008430b6047ecea7b92.tar.xz kernel-qcow2-linux-406a733db0052fed66d17008430b6047ecea7b92.zip | |
ftrace/x86: Do not trace .discard.text section
The section called .discard.text has tracing attached to it and is
currently ignored by ftrace. But it does include a call to the mcount
stub. Adding a notrace to the code keeps gcc from adding the useless
mcount caller to it.
Link: http://lkml.kernel.org/r/20110421023739.243651696@goodmis.org
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
| -rw-r--r-- | arch/x86/include/asm/setup.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/include/asm/setup.h b/arch/x86/include/asm/setup.h index db8aa19a08a2..647d8a06ce4f 100644 --- a/arch/x86/include/asm/setup.h +++ b/arch/x86/include/asm/setup.h @@ -88,7 +88,7 @@ void *extend_brk(size_t size, size_t align); * executable.) */ #define RESERVE_BRK(name,sz) \ - static void __section(.discard.text) __used \ + static void __section(.discard.text) __used notrace \ __brk_reservation_fn_##name##__(void) { \ asm volatile ( \ ".pushsection .brk_reservation,\"aw\",@nobits;" \ |