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Re: [PATCH, v5] ARM: Add Cortex-A15 optimized NEON and VFP memcpy routines, with IFUNC.
- From: Will Newton <will dot newton at linaro dot org>
- To: "Joseph S. Myers" <joseph at codesourcery dot com>
- Cc: libc-ports at sourceware dot org, Patch Tracking <patches at linaro dot org>
- Date: Wed, 1 May 2013 10:11:09 +0100
- Subject: Re: [PATCH, v5] ARM: Add Cortex-A15 optimized NEON and VFP memcpy routines, with IFUNC.
- References: <517FF73E dot 5020509 at linaro dot org> <Pine dot LNX dot 4 dot 64 dot 1304301705500 dot 21969 at digraph dot polyomino dot org dot uk>
On 30 April 2013 18:07, Joseph S. Myers <joseph@codesourcery.com> wrote:
> On Tue, 30 Apr 2013, Will Newton wrote:
>
>> * sysdeps/arm/configure.in: Require binutils 2.21 to build
>> for armv7.
>
> * sysdeps/arm/configure: Regenerated.
I added that to the changelog, but the actual change to configure is
still omitted from the patch.
>> +# If we are configuring for armv7 we need binutils 2.21 to ensure that
>> +# NEON alignments are assembled correctly.
>> +if test $machine = arm/armv7; then
>> + AC_CHECK_PROG_VER(AS, $AS, --version,
>> + [GNU assembler.* \([0-9]*\.[0-9.]*\)],
>> + [2.1[0-9][0-9]*|2.[2-9][1-9]*|[3-9].*|[1-9][0-9]*], AS=: critic_missing="$critic_missing as")
>
> That looks like it would reject versions 2.30, 2.40, ... - and does this
> run early enough for the critic_missing setting to be effective?
No, you're right. I've fixed up the error handling and the glob.
--
Will Newton
Toolchain Working Group, Linaro