linux-kernel - Re: PATCH: Add --size-check=[error|warning]

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Message-ID: <AANLkTikkWC47U_n--zWq+B-V0zPW+p85WLtPRczEdkNR@mail.gmail.com>
Date:	Mon, 14 Mar 2011 13:51:05 +0100
From:	Sedat Dilek <sedat.dilek@...glemail.com>
To:	Jan Beulich <JBeulich@...ell.com>
Cc:	Ingo Molnar <mingo@...e.hu>, amodra@...il.com,
	"H.J. Lu" <hjl.tools@...il.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	binutils <binutils@...rceware.org>,
	LKML <linux-kernel@...r.kernel.org>,
	"H. Peter Anvin" <hpa@...or.com>
Subject: Re: PATCH: Add --size-check=[error|warning]

On Mon, Mar 14, 2011 at 1:21 PM, Jan Beulich <JBeulich@...ell.com> wrote:
>>>> On 14.03.11 at 12:52, Sedat Dilek <sedat.dilek@...glemail.com> wrote:
>> On Mon, Mar 14, 2011 at 12:38 PM, Sedat Dilek
>> <sedat.dilek@...glemail.com> wrote:
>>> [ Changing Alan's Email to valid <amodra@...il.com> in CC ]
>>>
>>> On Mon, Mar 14, 2011 at 12:26 PM, Jan Beulich <JBeulich@...ell.com> wrote:
>>>>>>> On 14.03.11 at 12:02, Sedat Dilek <sedat.dilek@...glemail.com> wrote:
>>> [...]
>>>>> [2] Where can someone set a "global behaviour" (hardcoded options) for
>>>>> his/her assembler in the kernel's build-system (speaking of
>>>>> "--size-check=[error|warning]")?
>>>>
>>>> Nowhere, selecting behavior is possible only via the command line.
>>>>
>>>
>>> Via command-line, something like this would do it?
>>>
>>>     $ export AS="/usr/bin/as --size-check=warning
>>> [...]
>
> No - $(AS) isn't being used to translate .S files, $(CC) is being used
> instead. That's why I pointed at the necessary -B option (so that
> the compiler would be able to locate the wrapper H.J. suggested).
>

OK, now I am enlightened in things of -B option.
Anyway, can I see the correct command line to use?
(OMG, I am glad this is not the $500.000 question @ "Who Wants to Be a
Millionaire?" quiz show. Jan wanna be my telephone joker :-)?)

>> By looking through the binutils source-code, I have seen ASFLAGS.
>>
>>      $ ASFLAGS="--size-check=warning" ; export ASFLAGS
>
> Where did you find that? All places where I see references to this
> variable are in the testsuite.
>
> Jan
>

WildWildWeb, IIRC I saw ASFLAGS used in a Gentoo package and AS in
Cross-LFS/binutils build instructions.

- Sedat -
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