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| author | Stefan Liebler <stli@linux.ibm.com> | 2018-12-18 13:57:05 +0100 |
|---|---|---|
| committer | Stefan Liebler <stli@linux.ibm.com> | 2018-12-18 13:57:05 +0100 |
| commit | 07be392807ac78330da90f01408aa7e042a97a88 (patch) | |
| tree | 61dbb46016a8c0699a234552b2bd4a6eaa063065 /sysdeps/s390/s390-64 | |
| parent | 712a254a97ade7f48fb7a434339faa05c048ce1f (diff) | |
| download | glibc-07be392807ac78330da90f01408aa7e042a97a88.tar.gz glibc-07be392807ac78330da90f01408aa7e042a97a88.tar.xz glibc-07be392807ac78330da90f01408aa7e042a97a88.zip | |
S390: Implement bzero with memset.
This patch removes the bzero s390 implementation with mvcle and adds entry points for bzero in memset ifunc variants. Therefore an ifunc resolver is implemented for bzero, too. ChangeLog: * sysdeps/s390/s390-32/bzero.S: Delete file. * sysdeps/s390/s390-64/bzero.S: Likewise. * sysdeps/s390/Makefile (sysdep_routines): Add bzero. * sysdeps/s390/bzero.c: New file. * sysdeps/s390/memset-z900.S: Add bzero entry points. * sysdeps/s390/ifunc-memset.h: Add bzero function macros. * sysdeps/s390/multiarch/ifunc-impl-list.c (__libc_ifunc_impl_list): Add bzero ifunc variants.
Diffstat (limited to 'sysdeps/s390/s390-64')
| -rw-r--r-- | sysdeps/s390/s390-64/bzero.S | 41 |
1 files changed, 0 insertions, 41 deletions
diff --git a/sysdeps/s390/s390-64/bzero.S b/sysdeps/s390/s390-64/bzero.S deleted file mode 100644 index b321665298..0000000000 --- a/sysdeps/s390/s390-64/bzero.S +++ /dev/null @@ -1,41 +0,0 @@ -/* bzero -- set a block of memory to zero. 64 bit S/390 version. - This file is part of the GNU C Library. - Copyright (C) 2001-2018 Free Software Foundation, Inc. - Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com). - - 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/>. */ - -/* INPUT PARAMETERS - %r2 = address of memory area - %r3 = number of bytes to fill. */ - -#include "sysdep.h" -#include "asm-syntax.h" - - .text -ENTRY(__bzero) - ltgr %r3,%r3 - jz .L1 - sgr %r1,%r1 # set pad byte to zero - sgr %r4,%r4 # no source for MVCLE, only a pad byte - sgr %r5,%r5 -.L0: mvcle %r2,%r4,0(%r1) # thats it, MVCLE is your friend - jo .L0 -.L1: br %r14 -END(__bzero) - -#ifndef NO_WEAK_ALIAS -weak_alias (__bzero, bzero) -#endif |