From: Florian Weimer <fweimer@redhat.com>
To: "H.J. Lu" <hjl.tools@gmail.com>
Cc: GNU C Library <libc-alpha@sourceware.org>
Subject: Re: RFC: Add <sys/platform/x86.h> to glibc 2.29
Date: Fri, 17 Aug 2018 16:19:00 -0000 [thread overview]
Message-ID: <040ab157-8d0f-17e2-1421-a20d4c68d87a@redhat.com> (raw)
In-Reply-To: <CAMe9rOoMsLTXcpvGLnaeDZ4PiOu3WHVkU+STO4pBnK1VDcYq9g@mail.gmail.com>
On 08/17/2018 05:45 PM, H.J. Lu wrote:
> 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));
Sorry, this does not answer my question.
>> Shouldn't these identifiers be in the public (non-internal) namespace?
>>
>
> Do we have precedents for such arch specific public functions?
There is modify_ldt.
Thanks,
Florian
next prev parent reply other threads:[~2018-08-17 16:19 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-07-29 16:16 H.J. Lu
2018-07-31 13:32 ` Carlos O'Donell
2018-07-31 14:49 ` H.J. Lu
2018-07-31 15:06 ` Carlos O'Donell
2018-07-31 16:17 ` H.J. Lu
2018-08-17 14:50 ` Florian Weimer
2018-08-17 15:46 ` H.J. Lu
2018-08-17 16:19 ` Florian Weimer [this message]
2018-08-17 16:44 ` H.J. Lu
2018-08-17 19:11 ` Florian Weimer
2018-08-20 11:29 ` Florian Weimer
2018-08-20 20:55 ` H.J. Lu
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