Messages in this thread Patch in this message | | | Date | Mon, 21 Jan 2008 10:22:33 -0500 | From | Steven Rostedt <> | Subject | [RFC PATCH 02/23 -v4] Annotate core code that should not be traced |
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Mark with "notrace" functions in core code that should not be traced. The "notrace" attribute will prevent gcc from adding a call to mcount on the annotated funtions.
Signed-off-by: Arnaldo Carvalho de Melo <acme@ghostprotocols.net> Signed-off-by: Steven Rostedt <srostedt@redhat.com>
--- lib/smp_processor_id.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
Index: linux-mcount.git/lib/smp_processor_id.c =================================================================== --- linux-mcount.git.orig/lib/smp_processor_id.c 2008-01-17 20:33:16.000000000 -0500 +++ linux-mcount.git/lib/smp_processor_id.c 2008-01-17 20:33:31.000000000 -0500 @@ -7,7 +7,7 @@ #include <linux/kallsyms.h> #include <linux/sched.h> -unsigned int debug_smp_processor_id(void) +notrace unsigned int debug_smp_processor_id(void) { unsigned long preempt_count = preempt_count(); int this_cpu = raw_smp_processor_id(); --
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