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Re: glibc 2.18 freeze!
- From: Adhemerval Zanella <azanella at linux dot vnet dot ibm dot com>
- To: libc-alpha at sourceware dot org
- Date: Wed, 12 Jun 2013 17:29:51 -0300
- Subject: Re: glibc 2.18 freeze!
- References: <51ACFE36 dot 5000603 at redhat dot com> <CAAKybw9ZuOKSpXgCGb5mFVHkKmrnUCKAdStg+i7+_ckUM9Qp2g at mail dot gmail dot com> <51ADFC0B dot 1060907 at linux dot vnet dot ibm dot com> <20130611183029 dot B62D52C0A2 at topped-with-meat dot com> <51B78382 dot 6000403 at linux dot vnet dot ibm dot com> <20130611213211 dot EA4E12C09F at topped-with-meat dot com> <51B893F9 dot 6010401 at linux dot vnet dot ibm dot com> <20130612184717 dot GA179 at winnix> <51B8D6D2 dot 2080906 at redhat dot com>
On 12-06-2013 17:15, Carlos O'Donell wrote:
> On 06/12/2013 02:47 PM, Winfried Magerl wrote:
>> gcc-4.8.1 is already released and even with a future gcc-fix (if bug is
>> accpeted) it might be necessary to add some workaround for this problem
>> befor releasing glibc-2.18.
> Adhemerval,
>
> Given your familiarity with the issue do you have time to fix the
> memset issue in glibc so that we can compile with the already released
> gcc-4.8.1?
>
> One solution could be a configure check that detects the transformation
> is present, sets a flag, and then disables the transformation when building
> the appropriate file.
>
> The best example I can give is a recent fix I did for detecting when
> __sync_val_compare_and_swap is used e.g. commit
> a01f19c8fb12eef419d4112879bc715e2ab6f6d7
>
> You can use a variable to set something in config.make, which then
> gets used to decided to enable or disable the feature.
>
> Cheers,
> Carlos.
>
Hi Carlos,
I think I do, I'll setup a x86_64 environment and check your changes to
__sync_val_campare_and_swap.