RFC: Add <sys/platform/x86.h> to glibc 2.29

[H.J. Lu]

On Fri, Aug 17, 2018 at 7:50 AM, Florian Weimer <fweimer@redhat.com> wrote:
> On 07/29/2018 06:16 PM, H.J. Lu wrote:
>>
>> extern enum cpu_features_kind __x86_get_cpu_kind (void)
>>       __attribute__ ((const));
>>
>> extern const struct cpuid_registers *__x86_get_cpuid_registers
>>       (unsigned int) __attribute__ ((const));
>>
>> extern unsigned int __x86_get_arch_feature (unsigned int)
>>       __attribute__ ((const));
>
>
> Are these functions supposed to be usable in IFUNC resolvers?

They have the same limitation as

/* Used from outside of glibc to get access to the CPU features
   structure.  */
extern const struct cpu_features *__get_cpu_features (void)
     __attribute__ ((const));

> Shouldn't these identifiers be in the public (non-internal) namespace?
>

Do we have precedents for such arch specific public functions?

-- 
H.J.