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Re: [PATCH, v5] ARM: Add Cortex-A15 optimized NEON and VFP memcpy routines, with IFUNC.
- From: Roland McGrath <roland at hack dot frob dot com>
- To: Richard Henderson <rth at twiddle dot net>
- Cc: Will Newton <will dot newton at linaro dot org>, libc-ports at sourceware dot org, patches at linaro dot org
- Date: Wed, 1 May 2013 09:50:10 -0700 (PDT)
- Subject: Re: [PATCH, v5] ARM: Add Cortex-A15 optimized NEON and VFP memcpy routines, with IFUNC.
- References: <517FF73E dot 5020509 at linaro dot org> <5181102B dot 8060006 at twiddle dot net>
> > + /* Jump directly into the sequence below at the correct offset. */
> > + add pc, pc, tmp1, lsl #1
>
> This is going to fail for NaCl, defining ARM_ALWAYS_BX. I'm not quite
> sure all of what needs to be done to fix that. I'm sure Roland will
> have some advice...
>
> Perhaps the answer is "nothing" and NaCl should be vectored back to the
> non-ifunc version of the code.
No, I want the new stuff. But I'd intended to do NaCl fixups as follow-on
patches after this goes in. I don't expect other people to be worrying
about NaCl issues at this point.
Thanks,
Roland