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SubjectRe: [PATCH] perf: Enable function tracing for perf core
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On Thu, 2013-03-28 at 08:45 -0700, Andi Kleen wrote:
> Andi Kleen <andi@firstfloor.org> writes:
>
> > From: Andi Kleen <ak@linux.intel.com>
> >
> > According to Steven R. there is no reason left to not support
> > function tracing for the perf core. This makes it easier to debug
> > perf.
> >
> > Don't remove -pg for the x86 and generic perf core.
>
> Ping! patch is missing review.
>

This needs an acked-by from either Peter or Frederic.

-- Steve

>
> >
> > Cc: rostedt@goodmis.org
> > Signed-off-by: Andi Kleen <ak@linux.intel.com>
> > ---
> > arch/x86/kernel/cpu/Makefile | 1 -
> > kernel/events/Makefile | 4 ----
> > 2 files changed, 0 insertions(+), 5 deletions(-)
> >
> > diff --git a/arch/x86/kernel/cpu/Makefile b/arch/x86/kernel/cpu/Makefile
> > index a0e067d..8eb5d28 100644
> > --- a/arch/x86/kernel/cpu/Makefile
> > +++ b/arch/x86/kernel/cpu/Makefile
> > @@ -5,7 +5,6 @@
> > # Don't trace early stages of a secondary CPU boot
> > ifdef CONFIG_FUNCTION_TRACER
> > CFLAGS_REMOVE_common.o = -pg
> > -CFLAGS_REMOVE_perf_event.o = -pg
> > endif
> >
> > # Make sure load_percpu_segment has no stackprotector
> > diff --git a/kernel/events/Makefile b/kernel/events/Makefile
> > index 103f5d1..a630994 100644
> > --- a/kernel/events/Makefile
> > +++ b/kernel/events/Makefile
> > @@ -1,7 +1,3 @@
> > -ifdef CONFIG_FUNCTION_TRACER
> > -CFLAGS_REMOVE_core.o = -pg
> > -endif
> > -
> > obj-y := core.o ring_buffer.o callchain.o
> >
> > obj-$(CONFIG_HAVE_HW_BREAKPOINT) += hw_breakpoint.o
>




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