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PowerPC: multiarch mempcpy for PowerPC32

This commit is contained in:
Adhemerval Zanella 2013-10-14 07:40:52 -05:00
parent 20ed471427
commit 87da8bdbe1
7 changed files with 133 additions and 2 deletions
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14
ChangeLog
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@ -1,3 +1,17 @@
2013-12-06 Adhemerval Zanella <azanella@linux.vnet.ibm.com>
* string/mempcpy.c (__mempcpy): Using macro to redefine symbol name.
* sysdeps/powerpc/powerpc32/power4/multiarch/mempcpy-power7.S: New
file.
* sysdeps/powerpc/powerpc32/power4/multiarch/mempcpy-ppc32.c: New
file.
* sysdeps/powerpc/powerpc32/power4/multiarch/mempcpy.c: New
file: multiarch mempcpy for PPC32.
* sysdeps/powerpc/powerpc32/power4/multiarch/Makefile: Add mempcpy
multiarch objects.
* sysdeps/powerpc/powerpc32/power4/multiarch/ifunc-impl-list.c
(__libc_ifunc_impl_list): Likewise.
2013-12-06 Adhemerval Zanella <azanella@linux.vnet.ibm.com>
* sysdeps/powerpc/powerpc32/power4/multiarch/bzero-power6.S: New file.

6
string/mempcpy.c
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@ -24,8 +24,12 @@
#undef mempcpy
#undef __mempcpy
#ifndef MEMPCPY
# define MEMPCPY __mempcpy
#endif
void *
__mempcpy (void *dest, const void *src, size_t len)
MEMPCPY (void *dest, const void *src, size_t len)
{
return memcpy (dest, src, len) + len;
}

2
sysdeps/powerpc/powerpc32/power4/multiarch/Makefile
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@ -2,5 +2,5 @@ ifeq ($(subdir),string)
sysdep_routines += memcpy-power7 memcpy-a2 memcpy-power6 memcpy-cell \
memcpy-ppc32 memcmp-power7 memcmp-ppc32 memset-power7 \
memset-power6 memset-ppc32 bzero-power7 bzero-power6 \
bzero-ppc32
bzero-ppc32 mempcpy-power7 mempcpy-ppc32
endif

8
sysdeps/powerpc/powerpc32/power4/multiarch/ifunc-impl-list.c
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@ -83,5 +83,13 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
__memcmp_power7)
IFUNC_IMPL_ADD (array, i, memcmp, 1, __memcmp_ppc))
/* Support sysdeps/powerpc/powerpc32/power4/multiarch/mempcpy.c. */
IFUNC_IMPL (i, name, mempcpy,
IFUNC_IMPL_ADD (array, i, mempcpy,
hwcap & PPC_FEATURE_HAS_VSX,
__mempcpy_power7)
IFUNC_IMPL_ADD (array, i, mempcpy, 1,
__mempcpy_ppc))
return i;
}

35
sysdeps/powerpc/powerpc32/power4/multiarch/mempcpy-power7.S Normal file
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@ -0,0 +1,35 @@
/* Optimized mempcpy implementation for POWER7.
Copyright (C) 2013 Free Software Foundation, Inc.
This file is part of the GNU C Library.
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/>. */
#include <sysdep.h>
#undef EALIGN
#define EALIGN(name, alignt, words) \
.globl C_SYMBOL_NAME(__mempcpy_power7); \
.type C_SYMBOL_NAME(__mempcpy_power7),@function; \
.align ALIGNARG(alignt); \
EALIGN_W_##words; \
C_LABEL(__mempcpy_power7) \
cfi_startproc;
#undef END
#define END(name) \
cfi_endproc; \
ASM_SIZE_DIRECTIVE(__mempcpy_power7)
#include <sysdeps/powerpc/powerpc32/power7/mempcpy.S>

32
sysdeps/powerpc/powerpc32/power4/multiarch/mempcpy-ppc32.c Normal file
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@ -0,0 +1,32 @@
/* PowerPC32 default implementation of mempcpy.
Copyright (C) 2013 Free Software Foundation, Inc.
This file is part of the GNU C Library.
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/>. */
#define MEMPCPY __mempcpy_ppc
#undef libc_hidden_def
#define libc_hidden_def(name)
#undef weak_alias
#define weak_alias(a, b)
#if defined SHARED
# undef libc_hidden_builtin_def
# define libc_hidden_builtin_def(name) \
__hidden_ver1 (__mempcpy_ppc, __GI_mempcpy, __mempcpy_ppc);
#endif
#include <string/mempcpy.c>

38
sysdeps/powerpc/powerpc32/power4/multiarch/mempcpy.c Normal file
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@ -0,0 +1,38 @@
/* Multiple versions of mempcpy.
Copyright (C) 2013 Free Software Foundation, Inc.
This file is part of the GNU C Library.
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/>. */
#ifndef NOT_IN_libc
# include <string.h>
# include <shlib-compat.h>
# include "init-arch.h"
extern __typeof (__mempcpy) __mempcpy_ppc attribute_hidden;
extern __typeof (__mempcpy) __mempcpy_power7 attribute_hidden;
/* Avoid DWARF definition DIE on ifunc symbol so that GDB can handle
ifunc symbol properly. */
libc_ifunc (__mempcpy,
(hwcap & PPC_FEATURE_HAS_VSX)
? __mempcpy_power7
: __mempcpy_ppc);
weak_alias (__mempcpy, mempcpy)
libc_hidden_def (mempcpy)
#else
# include <string/mempcpy.c>
#endif