[Top][All Lists]
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Qemu-devel] Re: [PATCH 0/7] clean build - eliminate warnings
From: |
Jan Kiszka |
Subject: |
[Qemu-devel] Re: [PATCH 0/7] clean build - eliminate warnings |
Date: |
Sat, 21 Feb 2009 21:09:01 +0100 |
User-agent: |
Mozilla/5.0 (X11; U; Linux i686 (x86_64); de; rv:1.8.1.12) Gecko/20080226 SUSE/2.0.0.12-1.1 Thunderbird/2.0.0.12 Mnenhy/0.7.5.666 |
Laurent Desnogues wrote:
> On Sat, Feb 21, 2009 at 8:00 PM, Jan Kiszka <address@hidden> wrote:
>> When working on larger or intrusive changes like the monitor rework, the
>> number of warnings a normal build generates (here: x86-64 host, gcc 4.3)
>> is still too high. And sometimes these warnings are not just of cosmetic
>> nature, see (reposted) patch 3.
>>
>> This series reduces the number of warnings significantly, still not to
>> zero (someone would have to look into the NetWinder stuff), but almost:
>>
>> Warning summary for 2009-02-21 (changes since 2009-02-21-base)
>> generic 0 (-1)
>> softmmu 0 (-39)
>> x86 0 (0)
>> arm 0 (-10)
>
> This means that after applying your patch there should be no more
> warning for the ARM target?
At least for softmmu, at least with my compiler (depending on the
precise version / distro patches, you may have different warnings
enabled by default): yes.
>
> On my machine (x86_64, gcc 4.1.2), I still get these:
>
> CC arm-softmmu/neon_helper.o
> /home/ldesnogu/work/Emu/qemu/svn-ref/target-arm/neon_helper.c: In
> function ‘helper_neon_rshl_s8’:
> /home/ldesnogu/work/Emu/qemu/svn-ref/target-arm/neon_helper.c:469:
> warning: ‘vdest.v1’ is used uninitialized in this function
> /home/ldesnogu/work/Emu/qemu/svn-ref/target-arm/neon_helper.c:469:
> warning: ‘vdest.v2’ is used uninitialized in this function
> /home/ldesnogu/work/Emu/qemu/svn-ref/target-arm/neon_helper.c:469:
> warning: ‘vdest.v3’ is used uninitialized in this function
> /home/ldesnogu/work/Emu/qemu/svn-ref/target-arm/neon_helper.c:469:
> warning: ‘vdest.v4’ is used uninitialized in this function
> /home/ldesnogu/work/Emu/qemu/svn-ref/target-arm/neon_helper.c: In
> function ‘helper_neon_rshl_s16’:
> /home/ldesnogu/work/Emu/qemu/svn-ref/target-arm/neon_helper.c:470:
> warning: ‘vdest.v1’ is used uninitialized in this function
> /home/ldesnogu/work/Emu/qemu/svn-ref/target-arm/neon_helper.c:470:
> warning: ‘vdest.v2’ is used uninitialized in this function
> /home/ldesnogu/work/Emu/qemu/svn-ref/target-arm/neon_helper.c: In
> function ‘helper_neon_rshl_s32’:
> /home/ldesnogu/work/Emu/qemu/svn-ref/target-arm/neon_helper.c:471:
> warning: ‘vdest.v1’ is used uninitialized in this function
Has this been identified as a real issue or just compiler blindness (my
series contains one "fix" for such blindness, see cris patch)? I'm
currently a bit lost in those macros...
>
> Note a patch has been proposed in the past (by Aurélien IIRC).
Do you have a reference at hand?
Jan
signature.asc
Description: OpenPGP digital signature
- [Qemu-devel] [PATCH 3/7] arm: Fix gic_irq_state.level bitfield type, (continued)
Re: [Qemu-devel] [PATCH 0/7] clean build - eliminate warnings, Laurent Desnogues, 2009/02/21