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| author | Stefan Liebler <stli@linux.ibm.com> | 2018-12-18 13:57:09 +0100 |
|---|---|---|
| committer | Stefan Liebler <stli@linux.ibm.com> | 2018-12-18 13:57:09 +0100 |
| commit | d2c4c403feddd6f0b9dbf31ca7541b37f90ee30a (patch) | |
| tree | 8507beba7ee4f2d088490d3bd3b9b16308ad0e9f /sysdeps/s390/memmem.c | |
| parent | 8c25dddd2e32bce47dfe01ca51c8aab535dbe23d (diff) | |
| download | glibc-d2c4c403feddd6f0b9dbf31ca7541b37f90ee30a.zip glibc-d2c4c403feddd6f0b9dbf31ca7541b37f90ee30a.tar.gz glibc-d2c4c403feddd6f0b9dbf31ca7541b37f90ee30a.tar.bz2 | |
S390: Add z13 memmem ifunc variant.
The new vector variant of memmem is using the common code
implementation, but instead of calling the default
mem* functions, the vector variants are called.
ChangeLog:
* sysdeps/s390/Makefile (sysdep_routines): Add memmem variants.
* sysdeps/s390/multiarch/ifunc-impl-list.c
(__libc_ifunc_impl_list): Add ifunc variants for memmem.
* sysdeps/s390/ifunc-memmem.h: New file.
* sysdeps/s390/memmem.c: Likewise.
* sysdeps/s390/memmem-c.c: Likewise.
* sysdeps/s390/memmem-vx.c: Likewise.
Diffstat (limited to 'sysdeps/s390/memmem.c')
| -rw-r--r-- | sysdeps/s390/memmem.c | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/sysdeps/s390/memmem.c b/sysdeps/s390/memmem.c new file mode 100644 index 0000000..8c50b3f --- /dev/null +++ b/sysdeps/s390/memmem.c @@ -0,0 +1,43 @@ +/* Multiple versions of memmem. + 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/>. */ + +#include <ifunc-memmem.h> + +#if HAVE_MEMMEM_IFUNC +# define memmem __redirect_memmem +# define __memmem __redirect___memmem +# include <string.h> +# include <ifunc-resolve.h> +# undef memmem +# undef __memmem + +# if HAVE_MEMMEM_C +extern __typeof (__redirect_memmem) MEMMEM_C attribute_hidden; +# endif + +# if HAVE_MEMMEM_Z13 +extern __typeof (__redirect_memmem) MEMMEM_Z13 attribute_hidden; +# endif + +s390_libc_ifunc_expr (__redirect_memmem, __memmem, + (HAVE_MEMMEM_Z13 && (hwcap & HWCAP_S390_VX)) + ? MEMMEM_Z13 + : MEMMEM_DEFAULT + ) +weak_alias (__memmem, memmem) +#endif |