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Re: [PATCH 0/3] arm: Fix link time optimization issues
- From: Pat Pannuto <pat dot pannuto at gmail dot com>
- To: newlib at sourceware dot org
- Cc: Pat Pannuto <pat dot pannuto at gmail dot com>
- Date: Fri, 20 Jan 2017 15:05:39 -0500
- Subject: Re: [PATCH 0/3] arm: Fix link time optimization issues
- Authentication-results: sourceware.org; auth=none
- References: <20170112045019.22610-1-pat.pannuto@gmail.com>
Following up on this. Any remaining issues / anything that needs changing?
On Wed, Jan 11, 2017 at 11:50 PM, Pat Pannuto <pat.pannuto@gmail.com> wrote:
> This patch series fixes a few things so that link time optimization will work.
> The high-level problem is that LTO can re-order top-level assembly blocks, so
> code that previously worked because one asm() block was listed before another
> at global scope in a file (in this case via #include) may no longer work.
>
> So far this was only an issue with two macros that were defined in an #include'd
> header. With these patches, I have LTO working with newlib on arm.
>
> Pat Pannuto (3):
> Remove unneeded references to arm_asm.h
> arm: Remove optpld macro
> arm: Remove RETURN macro
>
> newlib/libc/machine/arm/Makefile.am | 2 +-
> newlib/libc/machine/arm/Makefile.in | 2 +-
> newlib/libc/machine/arm/aeabi_memcpy-armv7a.S | 2 +-
> newlib/libc/machine/arm/aeabi_memmove-soft.S | 2 --
> newlib/libc/machine/arm/aeabi_memset-soft.S | 2 --
> newlib/libc/machine/arm/arm_asm.h | 35 ---------------------------
> newlib/libc/machine/arm/memchr.S | 1 -
> newlib/libc/machine/arm/strcmp-arm-tiny.S | 2 +-
> newlib/libc/machine/arm/strcmp-armv4.S | 12 +++++++++
> newlib/libc/machine/arm/strcmp-armv7m.S | 6 ++---
> newlib/libc/machine/arm/strcmp.S | 1 -
> newlib/libc/machine/arm/strcpy.c | 20 +++++++++------
> newlib/libc/machine/arm/strlen-armv7.S | 2 +-
> newlib/libc/machine/arm/strlen-stub.c | 10 +++++---
> 14 files changed, 38 insertions(+), 61 deletions(-)
>
> --
> 2.11.0
>