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| author | Steven Rostedt <srostedt@redhat.com> | 2011-04-13 22:43:29 +0200 |
|---|---|---|
| committer | Steven Rostedt <rostedt@goodmis.org> | 2011-05-16 20:47:13 +0200 |
| commit | 2895cd2ab81dfb7bc22637bc110857db44a30b4a (patch) | |
| tree | e68853cf5422e4107bc7d999fa39f0826b481cb7 /arch/x86/include/asm/setup.h | |
| parent | ftrace: Avoid recording mcount on .init sections directly (diff) | |
| download | linux-2895cd2ab81dfb7bc22637bc110857db44a30b4a.tar.xz linux-2895cd2ab81dfb7bc22637bc110857db44a30b4a.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>
Diffstat (limited to 'arch/x86/include/asm/setup.h')
| -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;" \ |