linux-kernel - Re: [PATCH 1/7] perf: Enable function tracing for perf core

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Date:	Sat, 08 Sep 2012 23:15:37 +0900
From:	Namhyung Kim <namhyung@...nel.org>
To:	Steven Rostedt <rostedt@...dmis.org>
Cc:	linux-kernel@...r.kernel.org, Ingo Molnar <mingo@...nel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Andi Kleen <ak@...ux.intel.com>
Subject: Re: [PATCH 1/7] perf: Enable function tracing for perf core

Hi Steve,

It seems you missed From: line?

Thanks,
Namhyung

On Sat, 08 Sep 2012 07:55:16 -0400, Steven Rostedt wrote:
> 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.
>
> Link: http://lkml.kernel.org/r/1345306530-25665-2-git-send-email-andi@firstfloor.org
>
> Signed-off-by: Andi Kleen <ak@...ux.intel.com>
> Signed-off-by: Steven Rostedt <rostedt@...dmis.org>
> ---
>  arch/x86/kernel/cpu/Makefile |    1 -
>  kernel/events/Makefile       |    4 ----
>  2 files changed, 5 deletions(-)
>
> diff --git a/arch/x86/kernel/cpu/Makefile b/arch/x86/kernel/cpu/Makefile
> index d30a6a9..6a16725 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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