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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.
48 lines
1.4 KiB
C
48 lines
1.4 KiB
C
/* Multiple versions of bzero.
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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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#include <ifunc-memset.h>
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#if HAVE_MEMSET_IFUNC
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# include <string.h>
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# include <ifunc-resolve.h>
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# if HAVE_MEMSET_Z900_G5
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extern __typeof (__bzero) BZERO_Z900_G5 attribute_hidden;
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# endif
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# if HAVE_MEMSET_Z10
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extern __typeof (__bzero) BZERO_Z10 attribute_hidden;
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# endif
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# if HAVE_MEMSET_Z196
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extern __typeof (__bzero) BZERO_Z196 attribute_hidden;
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# endif
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s390_libc_ifunc_expr (__bzero, __bzero,
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({
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s390_libc_ifunc_init ();
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(HAVE_MEMSET_Z196 && S390_IS_Z196 (stfle_bits))
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? BZERO_Z196
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: (HAVE_MEMSET_Z10 && S390_IS_Z10 (stfle_bits))
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? BZERO_Z10
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: BZERO_DEFAULT;
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})
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)
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weak_alias (__bzero, bzero)
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#endif
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