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PowerPC: multiarch mempcpy for PowerPC32
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ChangeLog
14
ChangeLog
@ -1,3 +1,17 @@
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2013-12-06 Adhemerval Zanella <azanella@linux.vnet.ibm.com>
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* string/mempcpy.c (__mempcpy): Using macro to redefine symbol name.
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* sysdeps/powerpc/powerpc32/power4/multiarch/mempcpy-power7.S: New
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file.
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* sysdeps/powerpc/powerpc32/power4/multiarch/mempcpy-ppc32.c: New
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file.
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* sysdeps/powerpc/powerpc32/power4/multiarch/mempcpy.c: New
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file: multiarch mempcpy for PPC32.
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* sysdeps/powerpc/powerpc32/power4/multiarch/Makefile: Add mempcpy
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multiarch objects.
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* sysdeps/powerpc/powerpc32/power4/multiarch/ifunc-impl-list.c
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(__libc_ifunc_impl_list): Likewise.
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2013-12-06 Adhemerval Zanella <azanella@linux.vnet.ibm.com>
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* sysdeps/powerpc/powerpc32/power4/multiarch/bzero-power6.S: New file.
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@ -24,8 +24,12 @@
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#undef mempcpy
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#undef __mempcpy
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#ifndef MEMPCPY
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# define MEMPCPY __mempcpy
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#endif
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void *
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__mempcpy (void *dest, const void *src, size_t len)
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MEMPCPY (void *dest, const void *src, size_t len)
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{
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return memcpy (dest, src, len) + len;
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}
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@ -2,5 +2,5 @@ ifeq ($(subdir),string)
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sysdep_routines += memcpy-power7 memcpy-a2 memcpy-power6 memcpy-cell \
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memcpy-ppc32 memcmp-power7 memcmp-ppc32 memset-power7 \
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memset-power6 memset-ppc32 bzero-power7 bzero-power6 \
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bzero-ppc32
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bzero-ppc32 mempcpy-power7 mempcpy-ppc32
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endif
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@ -83,5 +83,13 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
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__memcmp_power7)
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IFUNC_IMPL_ADD (array, i, memcmp, 1, __memcmp_ppc))
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/* Support sysdeps/powerpc/powerpc32/power4/multiarch/mempcpy.c. */
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IFUNC_IMPL (i, name, mempcpy,
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IFUNC_IMPL_ADD (array, i, mempcpy,
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hwcap & PPC_FEATURE_HAS_VSX,
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__mempcpy_power7)
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IFUNC_IMPL_ADD (array, i, mempcpy, 1,
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__mempcpy_ppc))
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return i;
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}
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35
sysdeps/powerpc/powerpc32/power4/multiarch/mempcpy-power7.S
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35
sysdeps/powerpc/powerpc32/power4/multiarch/mempcpy-power7.S
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@ -0,0 +1,35 @@
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/* Optimized mempcpy implementation for 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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.globl C_SYMBOL_NAME(__mempcpy_power7); \
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.type C_SYMBOL_NAME(__mempcpy_power7),@function; \
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.align ALIGNARG(alignt); \
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EALIGN_W_##words; \
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C_LABEL(__mempcpy_power7) \
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cfi_startproc;
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#undef END
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#define END(name) \
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cfi_endproc; \
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ASM_SIZE_DIRECTIVE(__mempcpy_power7)
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#include <sysdeps/powerpc/powerpc32/power7/mempcpy.S>
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32
sysdeps/powerpc/powerpc32/power4/multiarch/mempcpy-ppc32.c
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32
sysdeps/powerpc/powerpc32/power4/multiarch/mempcpy-ppc32.c
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@ -0,0 +1,32 @@
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/* PowerPC32 default implementation of mempcpy.
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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 MEMPCPY __mempcpy_ppc
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#undef libc_hidden_def
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#define libc_hidden_def(name)
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#undef weak_alias
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#define weak_alias(a, b)
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#if 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 (__mempcpy_ppc, __GI_mempcpy, __mempcpy_ppc);
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#endif
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#include <string/mempcpy.c>
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38
sysdeps/powerpc/powerpc32/power4/multiarch/mempcpy.c
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38
sysdeps/powerpc/powerpc32/power4/multiarch/mempcpy.c
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@ -0,0 +1,38 @@
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/* Multiple versions of mempcpy.
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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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#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 (__mempcpy) __mempcpy_ppc attribute_hidden;
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extern __typeof (__mempcpy) __mempcpy_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 (__mempcpy,
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(hwcap & PPC_FEATURE_HAS_VSX)
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? __mempcpy_power7
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: __mempcpy_ppc);
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weak_alias (__mempcpy, mempcpy)
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libc_hidden_def (mempcpy)
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#else
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# include <string/mempcpy.c>
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#endif
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