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| author | Stefan Liebler <stli@linux.ibm.com> | 2018-12-18 13:57:05 +0100 |
|---|---|---|
| committer | Stefan Liebler <stli@linux.ibm.com> | 2018-12-18 13:57:05 +0100 |
| commit | b7e024a838452a85870256d8f1ab946dc8f931cd (patch) | |
| tree | 4eb67ea1437b18ba1bb12eff45b18cffac29a671 /ChangeLog | |
| parent | 6c6b8c747096d74b900e2711b9b0d463677f6d31 (diff) | |
| download | glibc-b7e024a838452a85870256d8f1ab946dc8f931cd.tar glibc-b7e024a838452a85870256d8f1ab946dc8f931cd.tar.gz glibc-b7e024a838452a85870256d8f1ab946dc8f931cd.tar.bz2 glibc-b7e024a838452a85870256d8f1ab946dc8f931cd.zip | |
S390: Refactor memcmp ifunc handling.
This patch moves all ifunc variants for memcmp
to sysdeps/s390/memcmp-z900.S. The configure-check/preprocessor logic
in sysdeps/s390/ifunc-memcmp.h decides if ifunc is needed at all
and which ifunc variants should be available.
E.g. if the compiler/assembler already supports z196 by default,
the older ifunc variants are not included.
If we only need the newest ifunc variant,
then we can skip ifunc at all.
Therefore the ifunc-resolvers and __libc_ifunc_impl_list are adjusted
in order to handle only the available ifunc variants.
ChangeLog:
* sysdeps/s390/ifunc-memcmp.h: New File.
* sysdeps/s390/memcmp.S: Move to ...
* sysdeps/s390/memcmp-z900.S ... here.
Move implementations from memcmp-s390x.s to here.
* sysdeps/s390/multiarch/memcmp-s390x.S: Delete File.
* sysdeps/s390/multiarch/Makefile (sysdep_routines):
Remove memcmp variants.
* sysdeps/s390/Makefile (sysdep_routines):
Add memcmp variants.
* sysdeps/s390/multiarch/ifunc-impl-list.c
(__libc_ifunc_impl_list): Adjust ifunc variants for
memcmp.
* sysdeps/s390/multiarch/memcmp.c: Move ifunc resolver
to ...
* sysdeps/s390/memcmp.c: ... here.
Adjust ifunc variants for memcmp.
Diffstat (limited to 'ChangeLog')
| -rw-r--r-- | ChangeLog | 19 |
1 files changed, 19 insertions, 0 deletions
@@ -1,5 +1,24 @@ 2018-12-18 Stefan Liebler <stli@linux.ibm.com> + * sysdeps/s390/ifunc-memcmp.h: New File. + * sysdeps/s390/memcmp.S: Move to ... + * sysdeps/s390/memcmp-z900.S ... here. + Move implementations from memcmp-s390x.s to here. + * sysdeps/s390/multiarch/memcmp-s390x.S: Delete File. + * sysdeps/s390/multiarch/Makefile (sysdep_routines): + Remove memcmp variants. + * sysdeps/s390/Makefile (sysdep_routines): + Add memcmp variants. + * sysdeps/s390/multiarch/ifunc-impl-list.c + (__libc_ifunc_impl_list): Adjust ifunc variants for + memcmp. + * sysdeps/s390/multiarch/memcmp.c: Move ifunc resolver + to ... + * sysdeps/s390/memcmp.c: ... here. + Adjust ifunc variants for memcmp. + +2018-12-18 Stefan Liebler <stli@linux.ibm.com> + * sysdeps/s390/s390-64/memcmp.S: Move to ... * sysdeps/s390/memcmp.S: ... here. Adjust to be usable for 31/64bit. |