Adhemerval Zanella a1a638dda9 arm: Implement memchr ifunc selection in C ... This patch refactor ARM memchr ifunc selector to a C implementation. No functional change is expected, including ifunc resolution rules. It also reorganize the ifunc options code: 1. The memchr_impl.S is renamed to memchr_neon.S and multiple compilation options (which route to armv6t2/memchr one) is removed. The code to build if __ARM_NEON__ is defined is also simplified. 2. A memchr_noneon is added (which as build along previous ifunc resolution) and includes the armv6t2 direct. 3. Same as 2. for loader object. Alongside the aforementioned changes, it also some cleanus: - Internal memchr definition (__GI_memcpy) is now a hidden symbol. - No need to create hidden definition for the ifunc variants. Checked on armv7-linux-gnueabihf and with a build for arm-linux-gnueabi, arm-linux-gnueabihf with and without multiarch support and with both GCC 7.1 and GCC mainline. * sysdeps/arm/armv7/multiarch/Makefile [$(subdir) = string] (sysdeps_routines): Add memchr_noneon. * sysdeps/arm/armv7/multiarch/ifunc-memchr.h: New file. * sysdeps/arm/armv7/multiarch/memchr_noneon.S: Likewise. * sysdeps/arm/armv7/multiarch/rtld-memchr.S: Likewise. * sysdeps/arm/armv7/multiarch/memchr.S: Remove file. * sysdeps/arm/armv7/multiarch/memchr.c: New file. * sysdeps/arm/armv7/multiarch/memchr_impl.S: Move to ... * sysdeps/arm/armv7/multiarch/memchr_neon.S: ... here. Signed-off-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>		2017-11-06 17:37:57 -02:00
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multiarch	arm: Implement memchr ifunc selection in C	2017-11-06 17:37:57 -02:00
Implies
strcmp.S	Remove sfi_* annotations from ARM assembly files.	2017-05-20 08:12:11 -04:00