PowerPC: multirach memcmp for PowerPC64
This commit is contained in:
Adhemerval Zanella
parent
b5beafbcee
commit
07253fcf7b
13
ChangeLog
13
ChangeLog
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@ -1,3 +1,16 @@
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2013-12-13 Adhemerval Zanella <azanella@linux.vnet.ibm.com>
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* string/memcmp.c (memcmp): Using macro to redefine symbol name.
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* sysdeps/powerpc/powerpc64/multiarch/Makefile: Add memcpy multiarch
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implementations.
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* sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c
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(__libc_ifunc_impl_list): Likewise.
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* sysdeps/powerpc/powerpc64/multiarch/memcmp-power4.S: New file.
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* sysdeps/powerpc/powerpc64/multiarch/memcmp-power7.S: New file.
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* sysdeps/powerpc/powerpc64/multiarch/memcmp-ppc64.c: New file.
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* sysdeps/powerpc/powerpc64/multiarch/memcmp.c: New file: multiarch
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memcmp for PPC64.
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2013-12-13 Adhemerval Zanella <azanella@linux.vnet.ibm.com>
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* sysdeps/powerpc/powerpc64/multiarch/Makefile: New file to support
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@ -29,6 +29,10 @@
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#undef memcmp
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#ifndef MEMCMP
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# define MEMCMP memcmp
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#endif
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#ifdef _LIBC
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# include <memcopy.h>
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@ -304,7 +308,7 @@ memcmp_not_common_alignment (srcp1, srcp2, len)
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}
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int
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memcmp (s1, s2, len)
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MEMCMP (s1, s2, len)
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const __ptr_t s1;
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const __ptr_t s2;
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size_t len;
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@ -1,4 +1,5 @@
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ifeq ($(subdir),string)
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sysdep_routines += memcpy-power7 memcpy-a2 memcpy-power6 memcpy-cell \
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memcpy-power4 memcpy-ppc64
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memcpy-power4 memcpy-ppc64 memcmp-power7 memcmp-power4 \
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memcmp-ppc64
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endif
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@ -62,5 +62,13 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
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IFUNC_IMPL_ADD (array, i, memcpy, 1, __memcpy_ppc))
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#endif
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/* Support sysdeps/powerpc/powerpc64/multiarch/memcmp.c. */
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IFUNC_IMPL (i, name, memcmp,
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IFUNC_IMPL_ADD (array, i, memcmp, hwcap & PPC_FEATURE_HAS_VSX,
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__memcmp_power7)
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IFUNC_IMPL_ADD (array, i, memcmp, hwcap & PPC_FEATURE_POWER4,
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__memcmp_power4)
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IFUNC_IMPL_ADD (array, i, memcmp, 1, __memcmp_ppc))
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return i;
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}
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@ -0,0 +1,42 @@
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/* Optimized memcmp implementation for PowerPC64/POWER4.
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Copyright (C) 2013 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 <sysdep.h>
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#undef EALIGN
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#define EALIGN(name, alignt, words) \
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.section ".text"; \
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ENTRY_2(__memcmp_power4) \
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.align ALIGNARG(alignt); \
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EALIGN_W_##words; \
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BODY_LABEL(__memcmp_power4): \
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cfi_startproc; \
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LOCALENTRY(__memcmp_power4)
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#undef END
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#define END(name) \
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cfi_endproc; \
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TRACEBACK(__memcmp_power4) \
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END_2(__memcmp_power4)
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#undef libc_hidden_builtin_def
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#define libc_hidden_builtin_def(name)
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#undef weak_alias
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#define weak_alias(name,alias)
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#include <sysdeps/powerpc/powerpc64/power4/memcmp.S>
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@ -0,0 +1,42 @@
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/* Optimized memcmp implementation for PowerPC64/POWER7.
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Copyright (C) 2013 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 <sysdep.h>
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#undef EALIGN
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#define EALIGN(name, alignt, words) \
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.section ".text"; \
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ENTRY_2(__memcmp_power7) \
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.align ALIGNARG(alignt); \
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EALIGN_W_##words; \
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BODY_LABEL(__memcmp_power7): \
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cfi_startproc; \
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LOCALENTRY(__memcmp_power7)
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#undef END
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#define END(name) \
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cfi_endproc; \
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TRACEBACK(__memcmp_power7) \
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END_2(__memcmp_power7)
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#undef libc_hidden_builtin_def
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#define libc_hidden_builtin_def(name)
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#undef weak_alias
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#define weak_alias(name,alias)
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#include <sysdeps/powerpc/powerpc64/power7/memcmp.S>
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@ -0,0 +1,33 @@
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/* Copyright (C) 2013 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 <string.h>
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#define MEMCMP __memcmp_ppc
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#undef weak_alias
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#define weak_alias(name, aliasname) \
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extern __typeof (__memcmp_ppc) aliasname \
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__attribute__ ((weak, alias ("__memcmp_ppc")));
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#if !defined(NOT_IN_libc) && defined(SHARED)
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# undef libc_hidden_builtin_def
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# define libc_hidden_builtin_def(name) \
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__hidden_ver1(__memcmp_ppc, __GI_memcmp, __memcmp_ppc);
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#endif
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extern __typeof (memcmp) __memcmp_ppc attribute_hidden;
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#include <string/memcmp.c>
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@ -0,0 +1,39 @@
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/* Multiple versions of memcmp. PowerPC64 version.
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Copyright (C) 2013 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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/* Define multiple versions only for definition in libc. */
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#ifndef NOT_IN_libc
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# include <string.h>
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# include <shlib-compat.h>
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# include "init-arch.h"
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extern __typeof (memcmp) __memcmp_ppc attribute_hidden;
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extern __typeof (memcmp) __memcmp_power4 attribute_hidden;
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extern __typeof (memcmp) __memcmp_power7 attribute_hidden;
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/* Avoid DWARF definition DIE on ifunc symbol so that GDB can handle
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ifunc symbol properly. */
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libc_ifunc (memcmp,
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(hwcap & PPC_FEATURE_HAS_VSX)
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? __memcmp_power7 :
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(hwcap & PPC_FEATURE_POWER4)
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? __memcmp_power4
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: __memcmp_ppc);
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#else
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#include <string/memcmp.c>
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#endif
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