From: Avi Kivity <avi@qumranet.com>
To: Bernhard Rosenkraenzer <bero@arklinux.org>
Cc: linux-kernel@vger.kernel.org, akpm@osdl.org
Subject: Re: 2.6.19-rc5-mm1 fails to compile with gcc 4.2
Date: Sun, 12 Nov 2006 11:24:48 +0200 [thread overview]
Message-ID: <4556E860.700@qumranet.com> (raw)
In-Reply-To: <200611121005.58939.bero@arklinux.org>
Bernhard Rosenkraenzer wrote:
> On Sunday, 12. November 2006 09:22, Avi Kivity wrote:
>
>> Bernhard Rosenkraenzer wrote:
>>
>>> drivers/kvm/kvm_main.c: In function 'kvm_dev_ioctl_run':
>>> drivers/kvm/kvm_main.c:153: error: 'asm' operand has impossible
>>> constraints drivers/kvm/kvm_main.c:158: error: 'asm' operand has
>>> impossible constraints
>>>
>> Smells like a gcc regression. Can you send .config?
>>
>> Or better yet, preprocessed source and full gcc command line (as seen on
>> 'make V=1').
>>
>
> It does look like a gcc bug -- -O0 makes it go away.
> Details at http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29808
>
That's a different bug, gcc generates code that the assembler can't
handle. Might be an assembler bug.
Can you compile it with -S and post the generated assembly?
--
error compiling committee.c: too many arguments to function
next prev parent reply other threads:[~2006-11-12 9:24 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-11-11 22:34 2.6.19-rc5-mm1 fails to compile with gcc 4.2 Bernhard Rosenkraenzer
2006-11-12 8:22 ` Avi Kivity
2006-11-12 9:05 ` Bernhard Rosenkraenzer
2006-11-12 9:24 ` Avi Kivity [this message]
2006-11-12 13:36 ` Bernhard Rosenkraenzer
2006-11-12 13:43 ` Avi Kivity
2006-11-12 13:50 ` Bernhard Rosenkraenzer
2006-11-12 13:55 ` Avi Kivity
2006-11-12 14:13 ` Segher Boessenkool
2006-11-12 14:10 ` Segher Boessenkool
2006-11-12 11:17 ` Segher Boessenkool
2006-11-12 13:43 ` Bernhard Rosenkraenzer
2006-11-12 13:50 ` Avi Kivity
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