diff options
| author | Stefan Liebler <stli@linux.ibm.com> | 2018-12-18 13:57:24 +0100 |
|---|---|---|
| committer | Stefan Liebler <stli@linux.ibm.com> | 2018-12-18 13:57:24 +0100 |
| commit | c62534ae524111eae48b2c2adf3f9a2ca90824f5 (patch) | |
| tree | da07e010bcc14752b47a8b438daf39b502faf3a9 /sysdeps/s390/multiarch/wmemchr-c.c | |
| parent | 79b44cf61115bd48006227bb325b709f294c56f9 (diff) | |
| download | glibc-c62534ae524111eae48b2c2adf3f9a2ca90824f5.zip glibc-c62534ae524111eae48b2c2adf3f9a2ca90824f5.tar.gz glibc-c62534ae524111eae48b2c2adf3f9a2ca90824f5.tar.bz2 | |
S390: Refactor wmemchr ifunc handling.
The ifunc handling for wmemchr is adjusted in order to omit ifunc
if the minimum architecture level already supports newer CPUs by default.
Unfortunately the c ifunc variant can't be omitted at all as it is used
by the z13 ifunc variant as fallback if the pointers are not 4-byte aligned.
Glibc internal calls will use the "newer" ifunc variant.
ChangeLog:
* sysdeps/s390/multiarch/Makefile
(sysdep_routines): Remove wmemchr variants.
* sysdeps/s390/Makefile (sysdep_routines): Add wmemchr variants.
* sysdeps/s390/multiarch/ifunc-impl-list.c
(__libc_ifunc_impl_list): Refactor ifunc handling for wmemchr.
* sysdeps/s390/multiarch/wmemchr-c.c: Move to ...
* sysdeps/s390/wmemchr-c.c: ... here and adjust ifunc handling.
* sysdeps/s390/multiarch/wmemchr-vx.S: Move to ...
* sysdeps/s390/wmemchr-vx.S: ... here and adjust ifunc handling.
* sysdeps/s390/multiarch/wmemchr.c: Move to ...
* sysdeps/s390/wmemchr.c: ... here and adjust ifunc handling.
* sysdeps/s390/ifunc-wmemchr.h: New file.
Diffstat (limited to 'sysdeps/s390/multiarch/wmemchr-c.c')
| -rw-r--r-- | sysdeps/s390/multiarch/wmemchr-c.c | 37 |
1 files changed, 0 insertions, 37 deletions
diff --git a/sysdeps/s390/multiarch/wmemchr-c.c b/sysdeps/s390/multiarch/wmemchr-c.c deleted file mode 100644 index 089392b..0000000 --- a/sysdeps/s390/multiarch/wmemchr-c.c +++ /dev/null @@ -1,37 +0,0 @@ -/* Default wmemchr implementation for S/390. - Copyright (C) 2015-2018 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - <http://www.gnu.org/licenses/>. */ - -#if defined HAVE_S390_VX_ASM_SUPPORT && IS_IN (libc) -# define WMEMCHR __wmemchr_c - -# include <wchar.h> -extern __typeof (wmemchr) __wmemchr_c; -# undef weak_alias -# define weak_alias(name, alias) -# ifdef SHARED -# undef libc_hidden_def -# define libc_hidden_def(name) \ - __hidden_ver1 (__wmemchr_c, __GI___wmemchr, __wmemchr_c); -# undef libc_hidden_weak -# define libc_hidden_weak(name) \ - strong_alias (__wmemchr_c, __wmemchr_c_1); \ - __hidden_ver1 (__wmemchr_c_1, __GI_wmemchr, __wmemchr_c_1); -# endif /* SHARED */ - -# include <wcsmbs/wmemchr.c> -#endif /* HAVE_S390_VX_ASM_SUPPORT && IS_IN (libc) */ |