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| author | Stefan Liebler <stli@linux.ibm.com> | 2018-12-18 13:57:21 +0100 |
|---|---|---|
| committer | Stefan Liebler <stli@linux.ibm.com> | 2018-12-18 13:57:21 +0100 |
| commit | 3459e23dd4ae4aa8999df7111d833a0bb9add7cd (patch) | |
| tree | 5ed6f9c8e6531541e730f7d380c912a21e3d76b0 /sysdeps/s390/ifunc-wcscmp.h | |
| parent | 814a76e1bcc59e6c4899279ede887bf9fecf5a40 (diff) | |
| download | glibc-3459e23dd4ae4aa8999df7111d833a0bb9add7cd.tar.gz glibc-3459e23dd4ae4aa8999df7111d833a0bb9add7cd.tar.xz glibc-3459e23dd4ae4aa8999df7111d833a0bb9add7cd.zip | |
S390: Refactor wcscmp ifunc handling.
The ifunc handling for wcscmp is adjusted in order to omit ifunc variants if those will never be used as the minimum architecture level already supports newer CPUs by default. Glibc internal calls will then also use the "newer" ifunc variant. ChangeLog: * sysdeps/s390/multiarch/Makefile (sysdep_routines): Remove wcscmp variants. * sysdeps/s390/Makefile (sysdep_routines): Add wcscmp variants. * sysdeps/s390/multiarch/ifunc-impl-list.c (__libc_ifunc_impl_list): Refactor ifunc handling for wcscmp. * sysdeps/s390/multiarch/wcscmp-c.c: Move to ... * sysdeps/s390/wcscmp-c.c: ... here and adjust ifunc handling. * sysdeps/s390/multiarch/wcscmp-vx.S: Move to ... * sysdeps/s390/wcscmp-vx.S: ... here and adjust ifunc handling. * sysdeps/s390/multiarch/wcscmp.c: Move to ... * sysdeps/s390/wcscmp.c: ... here and adjust ifunc handling. * sysdeps/s390/ifunc-wcscmp.h: New file.
Diffstat (limited to 'sysdeps/s390/ifunc-wcscmp.h')
| -rw-r--r-- | sysdeps/s390/ifunc-wcscmp.h | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/sysdeps/s390/ifunc-wcscmp.h b/sysdeps/s390/ifunc-wcscmp.h new file mode 100644 index 0000000000..99fe021302 --- /dev/null +++ b/sysdeps/s390/ifunc-wcscmp.h @@ -0,0 +1,52 @@ +/* wcscmp variant information on S/390 version. + Copyright (C) 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 USE_MULTIARCH && IS_IN (libc) \ + && ! defined HAVE_S390_MIN_Z13_ZARCH_ASM_SUPPORT +# define HAVE_WCSCMP_IFUNC 1 +#else +# define HAVE_WCSCMP_IFUNC 0 +#endif + +#ifdef HAVE_S390_VX_ASM_SUPPORT +# define HAVE_WCSCMP_IFUNC_AND_VX_SUPPORT HAVE_WCSCMP_IFUNC +#else +# define HAVE_WCSCMP_IFUNC_AND_VX_SUPPORT 0 +#endif + +#if defined HAVE_S390_MIN_Z13_ZARCH_ASM_SUPPORT +# define WCSCMP_DEFAULT WCSCMP_Z13 +# define HAVE_WCSCMP_C 0 +# define HAVE_WCSCMP_Z13 1 +#else +# define WCSCMP_DEFAULT WCSCMP_C +# define HAVE_WCSCMP_C 1 +# define HAVE_WCSCMP_Z13 HAVE_WCSCMP_IFUNC_AND_VX_SUPPORT +#endif + +#if HAVE_WCSCMP_C +# define WCSCMP_C __wcscmp_c +#else +# define WCSCMP_C NULL +#endif + +#if HAVE_WCSCMP_Z13 +# define WCSCMP_Z13 __wcscmp_vx +#else +# define WCSCMP_Z13 NULL +#endif |