linux-kernel - Re: [PATCH 4/4] xtensa: Setup CROSS

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Date:	Mon, 10 Sep 2012 22:33:02 +0200
From:	czankel <chris@...kel.net>
To:	Geert Uytterhoeven <geert@...ux-m68k.org>
CC:	linux-kernel@...r.kernel.org, linux-arch@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [PATCH 4/4] xtensa: Setup CROSS_COMPILE at the top

On 9/9/12 10:20 AM, Geert Uytterhoeven wrote:
> On Sat, May 12, 2012 at 10:39 PM, Geert Uytterhoeven
> <geert@...ux-m68k.org>  wrote:
>> CROSS_COMPILE must be setup before using e.g. cc-option (and a few other
>> as-*, cc-*, ld-* macros), else they will check against the wrong compiler
>> when cross-compiling, and may invoke the cross compiler with wrong or
>> suboptimal compiler options.
>>
>> Signed-off-by: Geert Uytterhoeven<geert@...ux-m68k.org>
>> Cc: Chris Zankel<chris@...kel.net>
>>
>> Ping?
Acked-by: Chris Zankel <chris@...kel.net>


>>
>> ---
>>   arch/xtensa/Makefile |   24 ++++++++++++------------
>>   1 files changed, 12 insertions(+), 12 deletions(-)
>>
>> diff --git a/arch/xtensa/Makefile b/arch/xtensa/Makefile
>> index 7608559..d41f9ed 100644
>> --- a/arch/xtensa/Makefile
>> +++ b/arch/xtensa/Makefile
>> @@ -21,6 +21,18 @@ variant-$(CONFIG_XTENSA_VARIANT_LINUX_CUSTOM)        := custom
>>   VARIANT = $(variant-y)
>>   export VARIANT
>>
>> +# Test for cross compiling
>> +
>> +ifneq ($(VARIANT),)
>> +  COMPILE_ARCH = $(shell uname -m)
>> +
>> +  ifneq ($(COMPILE_ARCH), xtensa)
>> +    ifndef CROSS_COMPILE
>> +      CROSS_COMPILE = xtensa_$(VARIANT)-
>> +    endif
>> +  endif
>> +endif
>> +
>>   # Platform configuration
>>
>>   platform-$(CONFIG_XTENSA_PLATFORM_XT2000)      := xt2000
>> @@ -54,18 +66,6 @@ KBUILD_DEFCONFIG := iss_defconfig
>>
>>   core-$(CONFIG_EMBEDDED_RAMDISK)        += arch/xtensa/boot/ramdisk/
>>
>> -# Test for cross compiling
>> -
>> -ifneq ($(VARIANT),)
>> -  COMPILE_ARCH = $(shell uname -m)
>> -
>> -  ifneq ($(COMPILE_ARCH), xtensa)
>> -    ifndef CROSS_COMPILE
>> -      CROSS_COMPILE = xtensa_$(VARIANT)-
>> -    endif
>> -  endif
>> -endif
>> -
>>   # Only build variant and/or platform if it includes a Makefile
>>
>>   buildvar := $(shell test -a $(srctree)/arch/xtensa/variants/$(VARIANT)/Makefile&&  echo arch/xtensa/variants/$(VARIANT)/)
> Gr{oetje,eeting}s,
>
>                          Geert
>
> --
> Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org
>
> In personal conversations with technical people, I call myself a hacker. But
> when I'm talking to journalists I just say "programmer" or something like that.
>                                  -- Linus Torvalds

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