From 802c1f1645d626c1297246d62f5586734686a128 Mon Sep 17 00:00:00 2001 From: Adhemerval Zanella Date: Wed, 4 Oct 2017 17:44:08 -0300 Subject: arm: Implement memcpy ifunc selection in C This patch refactor ARM memcpy ifunc selector to a C implementation. No functional change is expected, including ifunc resolution rules. It also adds some cleanup: - Internal memcpy hidden 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. I also checked with the some possible multiarch different configurations that trigger different memcpy buids (__ARM_NEON__ && !__SOFT_FP__, !__ARM_NEON__ && !__SOFT_FP__, and !__ARM_NEON__ && __SOFT_FP__). * sysdeps/arm/arm-ifunc.h: New file. * sysdeps/arm/armv7/multiarch/ifunc-memcpy.h: Likewise. * sysdeps/arm/armv7/multiarch/memcpy.c: Likewise. * sysdeps/arm/armv7/multiarch/memcpy_arm.S: Likewise. * sysdeps/arm/armv7/multiarch/rtld-memcpy.S: Likewise. * sysdeps/arm/armv7/multiarch/memcpy_neon.S [!__ARM_NEON__] (__memcpy_neon): Avoid create hidden alias. * sysdeps/arm/armv7/multiarch/memcpy_vfp.S [!__ARM_NEON_] (__memcpy_vfp): Likewise. * sysdeps/arm/armv7/multiarch/Makefile [$(subdir) = string] (sysdep_routines): Add memcpy_arm. * sysdeps/arm/armv7/multiarch/memcpy.S: Remove file. Signed-off-by: Adhemerval Zanella --- ChangeLog | 15 +++++++++++++++ 1 file changed, 15 insertions(+) (limited to 'ChangeLog') diff --git a/ChangeLog b/ChangeLog index 57c99d6562..b3f8c23ab4 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,18 @@ +2017-11-06 Adhemerval Zanella + + * sysdeps/arm/arm-ifunc.h: New file. + * sysdeps/arm/armv7/multiarch/ifunc-memcpy.h: Likewise. + * sysdeps/arm/armv7/multiarch/memcpy.c: Likewise. + * sysdeps/arm/armv7/multiarch/memcpy_arm.S: Likewise. + * sysdeps/arm/armv7/multiarch/rtld-memcpy.S: Likewise. + * sysdeps/arm/armv7/multiarch/memcpy_neon.S [!__ARM_NEON__] + (__memcpy_neon): Avoid create hidden alias. + * sysdeps/arm/armv7/multiarch/memcpy_vfp.S [!__ARM_NEON_] + (__memcpy_vfp): Likewise. + * sysdeps/arm/armv7/multiarch/Makefile [$(subdir) = string] + (sysdep_routines): Add memcpy_arm. + * sysdeps/arm/armv7/multiarch/memcpy.S: Remove file. + 2017-11-06 H.J. Lu [BZ #22362] -- cgit 1.4.1