linux-kernel - Re: [PATCH 2/2] objtool: Support CROSS

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Date:	Thu, 03 Mar 2016 07:23:30 -0800
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Stephen Rothwell <sfr@...b.auug.org.au>,
	Josh Poimboeuf <jpoimboe@...hat.com>
CC:	Ingo Molnar <mingo@...hat.com>, x86@...nel.org,
	linux-kernel@...r.kernel.org,
	Masami Hiramatsu <masami.hiramatsu.pt@...achi.com>,
	Adrian Hunter <adrian.hunter@...el.com>,
	Michael Ellerman <mpe@...erman.id.au>,
	Peter Zijlstra <peterz@...radead.org>,
	Thomas Gleixner <tglx@...utronix.de>
Subject: Re: [PATCH 2/2] objtool: Support CROSS_COMPILE

On March 2, 2016 6:43:14 PM PST, Stephen Rothwell <sfr@...b.auug.org.au> wrote:
>Hi Josh,
>
>Just a couple of quick comments ...
>
>On Wed,  2 Mar 2016 18:39:37 -0600 Josh Poimboeuf <jpoimboe@...hat.com>
>wrote:
>>
>> diff --git a/tools/objtool/Makefile b/tools/objtool/Makefile
>> index c4f0713..e4a6bd5 100644
>> --- a/tools/objtool/Makefile
>> +++ b/tools/objtool/Makefile
>
>I was wondering if this would be more appropriate in scripts/objtool
>since it is used during the building of the kernel.  Or does it have a
>wider use?
>
>> @@ -7,13 +7,19 @@ ARCH := x86
>>  endif
>>  endif
>>  
>> +# always use the host compiler
>> +CC = gcc
>
>We have HOSTCC with its associated HOSTCFLAGS etc ... I am not sure if
>that is more appropriate (but it does take care of people using clang).

This is what HOSTCC is for.  And yes, this belongs in scripts.
-- 
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