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powerpc: wordcopy/memmove cleanup for ppc64

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This patch cleanup some multiarch code related to memmmove
optimization. Initial IFUNC support added specialized wordcopy
symbols which turned in local IFUNC calls used by memmove default
implementation.

This change by removing then and used the optimized memmove instead
for supported chips.
This commit is contained in:
Adhemerval Zanella 2015-01-21 07:41:46 -05:00
parent 18e270aada
commit b269211467
6 changed files with 32 additions and 95 deletions
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9
ChangeLog
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@ -1,5 +1,14 @@
2015-02-09 Adhemerval Zanellla <azanella@linux.vnet.ibm.com>
* sysdeps/powerpc/powerpc64/multiarch/Makefile [sysdep_routines]:
Remove wordcopy-power6 obejct.
* sysdeps/powerpc/powerpc64/multiarch/memmove-ppc64.c (__memmove_ppc):
Use local call for wordcopy and memcpy symbols.
* sysdeps/powerpc/powerpc64/multiarch/wordcopy-power6.c: Remove file.
* sysdeps/powerpc/powerpc64/multiarch/wordcopy-ppc64.c: Add default
implementation for loader.
* sysdeps/powerpc/powerpc64/multiarch/wordcopy.c: Remove file.
* sysdeps/powerpc/powerpc64/multiarch/Makefile [sysdep_routines]:
Remove wordcopy-power7 object.
* sysdeps/powerpc/powerpc64/multiarch/wordcopy-power7.c: Remove file.

7
sysdeps/powerpc/powerpc64/multiarch/Makefile
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@ -11,19 +11,18 @@ sysdep_routines += memcpy-power7 memcpy-a2 memcpy-power6 memcpy-cell \
strncmp-power8 strncmp-power7 strncmp-power4 strncmp-ppc64 \
strchr-power7 strchr-ppc64 \
strchrnul-power7 strchrnul-ppc64 \
wordcopy-power6 wordcopy-ppc64 \
strcpy-power8 strcpy-power7 strcpy-ppc64 stpcpy-power8 \
stpcpy-power7 stpcpy-ppc64 \
strrchr-power7 strrchr-ppc64 strncat-power7 strncat-ppc64 \
strncpy-power7 strncpy-ppc64 \
stpncpy-power8 stpncpy-power7 stpncpy-ppc64 \
strcmp-power8 strcmp-power7 strcmp-ppc64 \
strcat-power8 strcat-power7 strcat-ppc64 memmove-power7 \
memmove-ppc64 bcopy-ppc64 strncpy-power8
strcat-power8 strcat-power7 strcat-ppc64 \
memmove-power7 memmove-ppc64 wordcopy-ppc64 bcopy-ppc64 \
strncpy-power8
CFLAGS-strncase-power7.c += -mcpu=power7 -funroll-loops
CFLAGS-strncase_l-power7.c += -mcpu=power7 -funroll-loops
CFLAGS-wordcopy-power6.c += -mcpu=power6
endif
ifeq ($(subdir),wcsmbs)

18
sysdeps/powerpc/powerpc64/multiarch/memmove-ppc64.c
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@ -16,13 +16,27 @@
<http://www.gnu.org/licenses/>. */
#include <string.h>
#include <memcopy.h>
extern __typeof (_wordcopy_fwd_aligned) _wordcopy_fwd_aligned_ppc;
extern __typeof (_wordcopy_fwd_dest_aligned) _wordcopy_fwd_dest_aligned_ppc;
extern __typeof (_wordcopy_bwd_aligned) _wordcopy_bwd_aligned_ppc;
extern __typeof (_wordcopy_bwd_dest_aligned) _wordcopy_bwd_dest_aligned_ppc;
#define _wordcopy_fwd_aligned _wordcopy_fwd_aligned_ppc
#define _wordcopy_fwd_dest_aligned _wordcopy_fwd_dest_aligned_ppc
#define _wordcopy_bwd_aligned _wordcopy_bwd_aligned_ppc
#define _wordcopy_bwd_dest_aligned _wordcopy_bwd_dest_aligned_ppc
extern __typeof (memmove) __memmove_ppc attribute_hidden;
#define MEMMOVE __memmove_ppc
extern __typeof (memcpy) __memcpy_ppc attribute_hidden;
#define memcpy __memcpy_ppc
#if IS_IN (libc) && defined(SHARED)
# undef libc_hidden_builtin_def
# define libc_hidden_builtin_def(name)
#endif
extern __typeof (memmove) __memmove_ppc attribute_hidden;
#include <string/memmove.c>

19
sysdeps/powerpc/powerpc64/multiarch/wordcopy-power6.c
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@ -1,19 +0,0 @@
/* wordcopy routines for powerpc64/power6.
Copyright (C) 2013-2015 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; see the file COPYING.LIB. If
not, see <http://www.gnu.org/licenses/>. */
#include <sysdeps/powerpc/powerpc32/power4/multiarch/wordcopy-power6.c>

4
sysdeps/powerpc/powerpc64/multiarch/wordcopy-ppc64.c
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@ -15,4 +15,8 @@
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
#if IS_IN (libc)
#include <sysdeps/powerpc/powerpc32/power4/multiarch/wordcopy-ppc32.c>
#else
#include <string/wordcopy.c>
#endif

70
sysdeps/powerpc/powerpc64/multiarch/wordcopy.c
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@ -1,70 +0,0 @@
/* Multiple versions of wordcopy functions.
Copyright (C) 2013-2015 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/>. */
#if IS_IN (libc)
# include <stddef.h>
# include <memcopy.h>
# include <shlib-compat.h>
# include "init-arch.h"
extern __typeof (_wordcopy_fwd_aligned) _wordcopy_fwd_aligned_ppc
attribute_hidden;
extern __typeof (_wordcopy_fwd_aligned) _wordcopy_fwd_aligned_power6
attribute_hidden;
libc_ifunc (_wordcopy_fwd_aligned,
(hwcap & PPC_FEATURE_ARCH_2_05)
? _wordcopy_fwd_aligned_power6
: _wordcopy_fwd_aligned_ppc);
extern __typeof (_wordcopy_fwd_dest_aligned) _wordcopy_fwd_dest_aligned_ppc
attribute_hidden;
extern __typeof (_wordcopy_fwd_dest_aligned) _wordcopy_fwd_dest_aligned_power6
attribute_hidden;
libc_ifunc (_wordcopy_fwd_dest_aligned,
(hwcap & PPC_FEATURE_ARCH_2_05)
? _wordcopy_fwd_dest_aligned_power6
: _wordcopy_fwd_dest_aligned_ppc);
extern __typeof (_wordcopy_bwd_aligned) _wordcopy_bwd_aligned_ppc
attribute_hidden;
extern __typeof (_wordcopy_bwd_aligned) _wordcopy_bwd_aligned_power6
attribute_hidden;
libc_ifunc (_wordcopy_bwd_aligned,
(hwcap & PPC_FEATURE_ARCH_2_05)
? _wordcopy_bwd_aligned_power6
: _wordcopy_bwd_aligned_ppc);
extern __typeof (_wordcopy_bwd_dest_aligned) _wordcopy_bwd_dest_aligned_ppc
attribute_hidden;
extern __typeof (_wordcopy_bwd_dest_aligned) _wordcopy_bwd_dest_aligned_power6
attribute_hidden;
libc_ifunc (_wordcopy_bwd_dest_aligned,
(hwcap & PPC_FEATURE_ARCH_2_05)
? _wordcopy_bwd_dest_aligned_power6
: _wordcopy_bwd_dest_aligned_ppc);
#else
#include <sysdeps/powerpc/power4/wordcopy.c>
#endif