From: Sam Ravnborg <sam@ravnborg.org>
To: Andi Kleen <ak@linux.intel.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>,
Andi Kleen <andi@firstfloor.org>,
linux-kernel@vger.kernel.org, linux-kbuild@vger.kernel.org,
x86@kernel.org
Subject: Re: [PATCH 2/2] Add CONFIG_READABLE_ASM
Date: Thu, 12 Apr 2012 22:07:52 +0200 [thread overview]
Message-ID: <20120412200752.GA30685@merkur.ravnborg.org> (raw)
In-Reply-To: <4F8733C5.5080609@linux.intel.com>
On Thu, Apr 12, 2012 at 12:57:57PM -0700, Andi Kleen wrote:
>
>>> You should try cc-diasable-warning like this:
>>>
>>> KBUILD_CFLAGS += $(call cc-disable-warning, ipa-cp-clone)
>> That works, thanks!
>> Andi, does it still work as expected for you?
>
> No, unfortunately it doesn't enable the flag with my compiler.
> Also BTW ipa-cp-clone is not a warning, it's an optimization pass.
Yeah I see now.
cc-disable-warning only works on warnings - which starts with -W
Could you try this:
cc-disable-opt = $(call try-run,\
$(CC) $(KBUILD_CPPFLAGS) $(KBUILD_CFLAGS) -f$(strip $(1)) -c -xc /dev/null -o "$$TMP",-fno-$(strip $(1)))
KBUILD_CFLAGS += $(call cc-disable-opt, ipa-cp-clone)
It will try if "gcc -fipa-cp-clone" is supported,
and add -fno-ipa-cp-clone in that case.
Sam
next prev parent reply other threads:[~2012-04-12 20:07 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-03-28 18:51 [PATCH 1/2] x86: Use -mno-avx when available Andi Kleen
2012-03-28 18:51 ` [PATCH 2/2] Add CONFIG_READABLE_ASM Andi Kleen
2012-03-30 17:41 ` [tip:x86/cleanups] debug: " tip-bot for Andi Kleen
2012-04-12 19:08 ` [PATCH 2/2] " Geert Uytterhoeven
2012-04-12 19:36 ` H. Peter Anvin
2012-04-12 19:42 ` Geert Uytterhoeven
2012-04-12 19:40 ` Sam Ravnborg
2012-04-12 19:47 ` Geert Uytterhoeven
2012-04-12 19:52 ` Sam Ravnborg
2012-04-12 19:57 ` Andi Kleen
2012-04-12 20:07 ` Sam Ravnborg [this message]
2012-04-12 20:17 ` Geert Uytterhoeven
2012-04-12 20:35 ` Sam Ravnborg
2012-05-08 19:36 ` Geert Uytterhoeven
2012-05-12 20:23 ` Geert Uytterhoeven
2012-05-12 20:25 ` Sam Ravnborg
2012-03-30 17:16 ` [tip:x86/urgent] x86: Use -mno-avx when available tip-bot for Andi Kleen
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