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Re: [PATCH, v5] ARM: Add Cortex-A15 optimized NEON and VFP memcpy routines, with IFUNC.
- From: "Joseph S. Myers" <joseph at codesourcery dot com>
- To: Will Newton <will dot newton at linaro dot org>
- Cc: <libc-ports at sourceware dot org>, <patches at linaro dot org>
- Date: Tue, 30 Apr 2013 17:07:47 +0000
- Subject: Re: [PATCH, v5] ARM: Add Cortex-A15 optimized NEON and VFP memcpy routines, with IFUNC.
- References: <517FF73E dot 5020509 at linaro dot org>
On Tue, 30 Apr 2013, Will Newton wrote:
> * sysdeps/arm/configure.in: Require binutils 2.21 to build
> for armv7.
* sysdeps/arm/configure: Regenerated.
> +# 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?
--
Joseph S. Myers
joseph@codesourcery.com