[PATCH] Make string _chk functions available for glibc tests

[Siddhesh Poyarekar]

On 2024-12-17 10:05, Sam James wrote:
> Sam James <sam@gentoo.org> writes:
> 
>> "H.J. Lu" <hjl.tools@gmail.com> writes:
>>
>>> String _chk functions are exported in libc.so.6, but their prototypes
>>> aren't provided since they can be used by GCC directly without prototypes.
>>> But some glibc tests are using them and Clang issues an error:
>>>
>>> ./tst-gnuglob-skeleton.c:225:3: error: call to undeclared function '__strcpy_chk'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
>>>    225 |   __strcpy_chk (dir->d.d_name, filesystem[dir->idx].name, NAME_MAX);
>>>        |   ^
>>>
>>> Make string _chk function prototypes available for glibc tests to avoid
>>> Clang error.
>>
>> __builtin___XXX_chk should work for Clang. But maybe it's better for us
>> to do this anyway rather than relying on the GCC builtins being
>> consistent.
> 
> ... so OK if no objections.
> 

Fine with me too.

Thanks,
Sid