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07be392807
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.
75 lines
2.2 KiB
C
75 lines
2.2 KiB
C
/* memset variant information on S/390 version.
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Copyright (C) 2018 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#if defined USE_MULTIARCH && IS_IN (libc) \
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&& ! defined HAVE_S390_MIN_Z196_ZARCH_ASM_SUPPORT
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# define HAVE_MEMSET_IFUNC 1
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#else
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# define HAVE_MEMSET_IFUNC 0
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#endif
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#if defined HAVE_S390_MIN_Z196_ZARCH_ASM_SUPPORT
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# define MEMSET_DEFAULT MEMSET_Z196
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# define BZERO_DEFAULT BZERO_Z196
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# define HAVE_MEMSET_Z900_G5 0
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# define HAVE_MEMSET_Z10 0
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# define HAVE_MEMSET_Z196 1
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#elif defined HAVE_S390_MIN_Z10_ZARCH_ASM_SUPPORT
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# define MEMSET_DEFAULT MEMSET_Z10
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# define BZERO_DEFAULT BZERO_Z10
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# define HAVE_MEMSET_Z900_G5 0
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# define HAVE_MEMSET_Z10 1
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# define HAVE_MEMSET_Z196 HAVE_MEMSET_IFUNC
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#else
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# define MEMSET_DEFAULT MEMSET_Z900_G5
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# define BZERO_DEFAULT BZERO_Z900_G5
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# define HAVE_MEMSET_Z900_G5 1
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# define HAVE_MEMSET_Z10 HAVE_MEMSET_IFUNC
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# define HAVE_MEMSET_Z196 HAVE_MEMSET_IFUNC
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#endif
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#if HAVE_MEMSET_Z10 || HAVE_MEMSET_Z196
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# define HAVE_MEMSET_MVCLE 1
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#else
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# define HAVE_MEMSET_MVCLE 0
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#endif
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#if HAVE_MEMSET_Z900_G5
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# define MEMSET_Z900_G5 __memset_default
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# define BZERO_Z900_G5 __bzero_default
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#else
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# define MEMSET_Z900_G5 NULL
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# define BZERO_Z900_G5 NULL
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#endif
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#if HAVE_MEMSET_Z10
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# define MEMSET_Z10 __memset_z10
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# define BZERO_Z10 __bzero_z10
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#else
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# define MEMSET_Z10 NULL
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# define BZERO_Z10 NULL
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#endif
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#if HAVE_MEMSET_Z196
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# define MEMSET_Z196 __memset_z196
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# define BZERO_Z196 __bzero_z196
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#else
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# define MEMSET_Z196 NULL
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# define BZERO_Z196 NULL
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#endif
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