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| author | Stefan Liebler <stli@linux.ibm.com> | 2018-12-18 13:57:22 +0100 |
|---|---|---|
| committer | Stefan Liebler <stli@linux.ibm.com> | 2018-12-18 13:57:22 +0100 |
| commit | 4753713aaed400d88cfc598e25d504478120b065 (patch) | |
| tree | 99af0df98fb82cd59be28de908c79b95d78258b9 /sysdeps/s390/wcsrchr-c.c | |
| parent | c09c1b6f014a45f6c4ba189f5ae94b1fb1a2982a (diff) | |
| download | glibc-4753713aaed400d88cfc598e25d504478120b065.tar.gz glibc-4753713aaed400d88cfc598e25d504478120b065.tar.xz glibc-4753713aaed400d88cfc598e25d504478120b065.zip | |
S390: Refactor wcsrchr ifunc handling.
The ifunc handling for wcsrchr 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. ChangeLog: * sysdeps/s390/multiarch/Makefile (sysdep_routines): Remove wcsrchr variants. * sysdeps/s390/Makefile (sysdep_routines): Add wcsrchr variants. * sysdeps/s390/multiarch/ifunc-impl-list.c (__libc_ifunc_impl_list): Refactor ifunc handling for wcsrchr. * sysdeps/s390/multiarch/wcsrchr-c.c: Move to ... * sysdeps/s390/wcsrchr-c.c: ... here and adjust ifunc handling. * sysdeps/s390/multiarch/wcsrchr-vx.S: Move to ... * sysdeps/s390/wcsrchr-vx.S: ... here and adjust ifunc handling. * sysdeps/s390/multiarch/wcsrchr.c: Move to ... * sysdeps/s390/wcsrchr.c: ... here and adjust ifunc handling. * sysdeps/s390/ifunc-wcsrchr.h: New file.
Diffstat (limited to 'sysdeps/s390/wcsrchr-c.c')
| -rw-r--r-- | sysdeps/s390/wcsrchr-c.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/sysdeps/s390/wcsrchr-c.c b/sysdeps/s390/wcsrchr-c.c new file mode 100644 index 0000000000..65164a897f --- /dev/null +++ b/sysdeps/s390/wcsrchr-c.c @@ -0,0 +1,27 @@ +/* Default wcsrchr 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/>. */ + +#include <ifunc-wcsrchr.h> + +#if HAVE_WCSRCHR_C +# if HAVE_WCSRCHR_IFUNC || HAVE_WCSRCHR_Z13 +# define WCSRCHR WCSRCHR_C +# endif + +# include <wcsmbs/wcsrchr.c> +#endif |