[PATCH 13/13] fix incompatible posix_memalign declaration on x86

Uros Bizjak ubizjak@gmail.com
Fri May 15 13:04:00 GMT 2015


On Fri, May 15, 2015 at 2:34 PM, Szabolcs Nagy <szabolcs.nagy@arm.com> wrote:
> On 20/04/15 20:00, Szabolcs Nagy wrote:
>> The posix_memalign declaration is incompatible with musl for C++,
>> because of the exception specification.  It also pollutes the
>> namespace and lacks protection against a potential macro definition
>> that is allowed by POSIX.  The fix avoids source level namespace
>> pollution but retains the dependency on the posix_memalign extern
>> libc symbol.
>>
>> The fix is ugly, but it is not possible to correctly redeclare a
>> libc function in a public gcc header for C++.
>>
>
> ping
>
> (now with maintainers in cc)
>
>>
>> gcc/Changelog:
>>
>> 2015-04-16  Szabolcs Nagy  <szabolcs.nagy@arm.com>
>>
>>       * config/i386/pmm_malloc.h (posix_memalign): Renamed to ...
>>       (__gcc_posix_memalign): This.  Use posix_memalign as extern
>>       symbol only.

This changes Intel's header - adding relevant people to OK the change.

Uros.



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