Commit 406a733d authored Apr 13, 2011 by Steven Rostedt Committed by Steven Rostedt May 17, 2011

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>

parent 5f9b93c3

arch/x86/include/asm/setup.h

+1 −1

Original line number	Diff line number	Diff line
		@@ -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;" \