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author | Stefan Liebler <stli@linux.vnet.ibm.com> | 2015-08-26 10:26:20 +0200 |
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committer | Andreas Krebbel <krebbel@linux.vnet.ibm.com> | 2015-08-26 10:26:20 +0200 |
commit | fcf40ebe2682fd65d64f94d69a3df798960cf1b7 (patch) | |
tree | 45b1b3ea6b9a5105a81ca6d7fe351b79a9042eb6 /sysdeps/s390/multiarch/strnlen-c.c | |
parent | 9472f35a0a6dbbda82ce103aaf0f5013f5d46e34 (diff) | |
download | glibc-fcf40ebe2682fd65d64f94d69a3df798960cf1b7.zip glibc-fcf40ebe2682fd65d64f94d69a3df798960cf1b7.tar.gz glibc-fcf40ebe2682fd65d64f94d69a3df798960cf1b7.tar.bz2 |
S390: Optimize strnlen and wcsnlen.
This patch provides optimized versions of strnlen and wcsnlen with the z13
vector instructions.
ChangeLog:
* sysdeps/s390/multiarch/strnlen-c.c: New File.
* sysdeps/s390/multiarch/strnlen-vx.S: Likewise.
* sysdeps/s390/multiarch/strnlen.c: Likewise.
* sysdeps/s390/multiarch/wcsnlen-c.c: Likewise.
* sysdeps/s390/multiarch/wcsnlen-vx.S: Likewise.
* sysdeps/s390/multiarch/wcsnlen.c: Likewise.
* sysdeps/s390/multiarch/Makefile (sysdep_routines): Add strnlen and
wcsnlen functions.
* sysdeps/s390/multiarch/ifunc-impl-list.c
(__libc_ifunc_impl_list): Add ifunc test for strnlen, wcsnlen.
* wcsmbs/wcsnlen.c: Use WCSNLEN if defined.
* string/test-strnlen.c: Add wcsnlen support.
* wcsmbs/test-wcsnlen.c: New File.
* wcsmbs/Makefile (strop-tests): Add wcsnlen.
* benchtests/bench-strnlen.c: Add wcsnlen support.
* benchtests/bench-wcsnlen.c: New File.
* benchtests/Makefile (wcsmbs-bench): Add wcsnlen.
Diffstat (limited to 'sysdeps/s390/multiarch/strnlen-c.c')
-rw-r--r-- | sysdeps/s390/multiarch/strnlen-c.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/sysdeps/s390/multiarch/strnlen-c.c b/sysdeps/s390/multiarch/strnlen-c.c new file mode 100644 index 0000000..72e82ae --- /dev/null +++ b/sysdeps/s390/multiarch/strnlen-c.c @@ -0,0 +1,30 @@ +/* Default strnlen implementation for S/390. + Copyright (C) 2015 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 STRNLEN __strnlen_c +# ifdef SHARED +# undef libc_hidden_def +# define libc_hidden_def(name) \ + __hidden_ver1 (__strnlen_c, __GI_strnlen, __strnlen_c); \ + strong_alias (__strnlen_c, __strnlen_c_1); \ + __hidden_ver1 (__strnlen_c_1, __GI___strnlen, __strnlen_c_1); +# endif /* SHARED */ + +# include <string/strnlen.c> +#endif /* HAVE_S390_VX_ASM_SUPPORT && IS_IN (libc) */ |