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Re: [PATCH rsa/power8_partial]
- From: Richard Henderson <rth at twiddle dot net>
- To: Ryan S Arnold <rsa at linux dot vnet dot ibm dot com>
- Cc: libc-alpha at sourceware dot org
- Date: Fri, 21 Jun 2013 09:23:27 -0700
- Subject: Re: [PATCH rsa/power8_partial]
- References: <1371828104 dot 4379 dot 3 dot camel at localhost dot localdomain>
On 06/21/2013 08:21 AM, Ryan S Arnold wrote:
> This lacks hwcap bits for
> power8 since those are blocked on AT_HWCAP2, which will slip into glibc
> 2.19.
You might as well commit the patch for elf.h that adds AT_HWCAP2.
With only that, the feature is still usable for applications via
getauxval. It'll go through the linear search path of that function,
returning exactly what the kernel provided.
For 2.19, and whatever stuff we wind up doing in ld.so, will simply
make the getauxval function faster for hwcap2.
Dunno what to do about versioning the ifunc arguments though...
r~