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RE: [PATCH 2/13] musl libc config
- From: "Kyrill Tkachov" <kyrylo dot tkachov at arm dot com>
- To: "'Ilya Verbin'" <iverbin at gmail dot com>
- Cc: "Jeff Law" <law at redhat dot com>, "Szabolcs Nagy" <Szabolcs dot Nagy at arm dot com>, <gcc-patches at gcc dot gnu dot org>, "Gregor Richards" <gregor dot richards at uwaterloo dot ca>, "Rich Felker" <dalias at libc dot org>, "Szabolcs Nagy" <nsz at port70 dot net>
- Date: Wed, 22 Apr 2015 16:36:59 +0100
- Subject: RE: [PATCH 2/13] musl libc config
- Authentication-results: sourceware.org; auth=none
- References: <55354A4A dot 4060702 at arm dot com> <55354AD5 dot 6030000 at arm dot com> <55379F19 dot 6060805 at redhat dot com> <5537B18B dot 3090408 at arm dot com> <20150422152659 dot GA34790 at msticlxl57 dot ims dot intel dot com>
On 22/04/15 16:26, Ilya Verbin wrote:
> On Wed, Apr 22, 2015 at 15:34:51 +0100, Kyrill Tkachov wrote:
>> On 22/04/15 14:16, Jeff Law wrote:
>>> On 04/20/2015 12:52 PM, Szabolcs Nagy wrote:
>>>> Add musl libc support to gcc and the command line option -mmusl
following other
>>>> libc support code.
>>>>
>>>> Note that -m<libc> cannot be entirely correct: there are build time
decisions
>>>> based on the default libc.
>>>>
>>>> gcc/Changelog:
>>>>
>>>> 2015-04-16 Gregor Richards <gregor.richards@uwaterloo.ca>
>>>>
>>>> * config.gcc (LIBC_MUSL): New tm_defines macro.
>>>> * config/linux.h (OPTION_MUSL): Define.
>>>> (INCLUDE_DEFAULTS_MUSL_GPP, INCLUDE_DEFAULTS_MUSL_LOCAL,)
>>>> (INCLUDE_DEFAULTS_MUSL_PREFIX, INCLUDE_DEFAULTS_MUSL_CROSS,)
>>>> (INCLUDE_DEFAULTS_MUSL_TOOL, INCLUDE_DEFAULTS_MUSL_NATIVE): Define.
>>>>
>>>> * config/linux.opt (mmusl): New option.
>>>> * gcc/configure.ac (gcc_cv_libc_provides_ssp): Add *-*-musl*.
>>>> (gcc_cv_target_dl_iterate_phdr): Add *-linux-musl*.
>>>>
>>>> * gcc/configure: Regenerate.
>>> OK for the trunk. Please install.
>> I've committed this on Szabolcs' behalf with r222326
>> with slightly adjusted ChangeLog paths:
>>
>> 2015-04-22 Gregor Richards <gregor.richards@uwaterloo.ca>
>>
>> * config.gcc (LIBC_MUSL): New tm_defines macro.
>> * config/linux.h (OPTION_MUSL): Define.
>> (INCLUDE_DEFAULTS_MUSL_GPP, INCLUDE_DEFAULTS_MUSL_LOCAL,)
>> (INCLUDE_DEFAULTS_MUSL_PREFIX, INCLUDE_DEFAULTS_MUSL_CROSS,)
>> (INCLUDE_DEFAULTS_MUSL_TOOL, INCLUDE_DEFAULTS_MUSL_NATIVE): Define.
>>
>> * config/linux.opt (mmusl): New option.
>> * configure.ac (gcc_cv_libc_provides_ssp): Add *-*-musl*.
>> (gcc_cv_target_dl_iterate_phdr): Add *-linux-musl*.
>>
>> * configure: Regenerate.
> This caused:
>
> https://gcc.gnu.org/ml/gcc-regression/2015-04/msg00262.html
Sorry about that. I've reverted the patch.
Szabolcs, we should wait until the target-specific parts are
approved and install it all together? Or did you want to #ifdef
some parts out to make this patch more robust towards targets that
don't support musl?
Kyrill
> -- Ilya
>