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Date:	Thu, 23 Oct 2014 07:52:50 -0600
From:	Shuah Khan <shuahkh@....samsung.com>
To:	Christopher Covington <cov@...eaurora.org>,
	Michael Ellerman <mpe@...erman.id.au>
CC:	linux-kernel@...r.kernel.org, linux-api@...r.kernel.org,
	Andrew Morton <akpm@...l.org>, gorcunov@...nvz.org
Subject: Re: [PATCH 3/3] selftests/kcmp: Always try to build the test

On 10/23/2014 07:06 AM, Christopher Covington wrote:
> Hi Michael,
> 
> On 10/23/2014 01:07 AM, Michael Ellerman wrote:
>> Don't prevent the test building on non-x86. Just try and build it and
>> let the chips fall where they may.
> 
> As a user of kcmp via CRIU on arm and arm64, thanks!
> 
>> diff --git a/tools/testing/selftests/kcmp/Makefile b/tools/testing/selftests/kcmp/Makefile
>> index 4f00c0524501..cda9cc4004c9 100644
>> --- a/tools/testing/selftests/kcmp/Makefile
>> +++ b/tools/testing/selftests/kcmp/Makefile
>> @@ -1,21 +1,7 @@
>> -uname_M := $(shell uname -m 2>/dev/null || echo not)
>> -ARCH ?= $(shell echo $(uname_M) | sed -e s/i.86/i386/)
>> -ifeq ($(ARCH),i386)
>> -        ARCH := x86
>> -	CFLAGS := -DCONFIG_X86_32 -D__i386__
>> -endif
>> -ifeq ($(ARCH),x86_64)
>> -	ARCH := x86
>> -	CFLAGS := -DCONFIG_X86_64 -D__x86_64__
>> -endif
>>  CFLAGS += -I../../../../usr/include/
>>  
>>  all:
>> -ifeq ($(ARCH),x86)
>>  	gcc $(CFLAGS) kcmp_test.c -o kcmp_test
> 
> Not that this needs to be addressed in this patch, but this looks broken for
> cross compilation. It looks like some of the other selftests use:
> 
> CC = $(CROSS_COMPILE)gcc
> 

It makes sense to fix the cross-compile problem now, since
this patch is extending the support to other archs.

thanks,
-- Shuah


-- 
Shuah Khan
Sr. Linux Kernel Developer
Samsung Research America (Silicon Valley)
shuahkh@....samsung.com | (970) 217-8978
--
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