linux-kernel - Re: [PATCH 1/3] Makefile: Include arch Makefiles as late as possible

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Date:	Wed, 4 Feb 2009 22:26:12 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	Anton Vorontsov <avorontsov@...mvista.com>,
	Sam Ravnborg <sam@...nborg.org>
Cc:	Steven Rostedt <srostedt@...hat.com>,
	Paul Mackerras <paulus@...ba.org>,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	linuxppc-dev@...abs.org, linux-kernel@...r.kernel.org,
	linux-rt-users@...r.kernel.org
Subject: Re: [PATCH 1/3] Makefile: Include arch Makefiles as late as
	possible


* Anton Vorontsov <avorontsov@...mvista.com> wrote:

> This patch gives arches more freedom on overwriting CFLAGS, specifically
> on PowerPC we want to remove -fno-omit-frame-pointer flag.
> 
> Signed-off-by: Anton Vorontsov <avorontsov@...mvista.com>
> ---
>  Makefile |    4 ++--
>  1 files changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/Makefile b/Makefile
> index 7715b2c..d1ba93f 100644
> --- a/Makefile
> +++ b/Makefile
> @@ -525,8 +525,6 @@ else
>  KBUILD_CFLAGS	+= -O2
>  endif
>  
> -include $(srctree)/arch/$(SRCARCH)/Makefile
> -
>  ifneq (CONFIG_FRAME_WARN,0)
>  KBUILD_CFLAGS += $(call cc-option,-Wframe-larger-than=${CONFIG_FRAME_WARN})
>  endif
> @@ -555,6 +553,8 @@ ifdef CONFIG_DEBUG_SECTION_MISMATCH
>  KBUILD_CFLAGS += $(call cc-option, -fno-inline-functions-called-once)
>  endif
>  
> +include $(srctree)/arch/$(SRCARCH)/Makefile
> +
>  # arch Makefile may override CC so keep this after arch Makefile is included
>  NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include)
>  CHECKFLAGS     += $(NOSTDINC_FLAGS)
> -- 

this patch is really for Sam to judge - Cc:-ed him.

	Ingo
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