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PowerPC: multiarch strlen for PowerPC32

This commit is contained in:
Adhemerval Zanella 2013-10-14 08:12:13 -05:00
parent 7af8b94625
commit 3148bb7d2c
6 changed files with 127 additions and 1 deletions
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12
ChangeLog
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@ -1,3 +1,15 @@
2013-12-06 Adhemerval Zanella <azanella@linux.vnet.ibm.com>
* sysdeps/powerpc/powerpc32/power4/multiarch/strlen-power7.S: New
file.
* sysdeps/powerpc/powerpc32/power4/multiarch/strlen-ppc32.S: New
file.
* sysdeps/powerpc/powerpc32/power4/multiarch/strlen.c: New file.
* sysdeps/powerpc/powerpc32/power4/multiarch/Makefile: Added strlen
multiarch objects.
* sysdeps/powerpc/powerpc32/power4/multiarch/ifunc-impl-list
(__libc_ifunc_impl_list): Likewise.
2013-12-06 Adhemerval Zanella <azanella@linux.vnet.ibm.com>
* sysdeps/powerpc/powerpc32/power4/multiarch/rawmemchr-power7.S: New

2
sysdeps/powerpc/powerpc32/power4/multiarch/Makefile
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@ -4,5 +4,5 @@ sysdep_routines += memcpy-power7 memcpy-a2 memcpy-power6 memcpy-cell \
memset-power6 memset-ppc32 bzero-power7 bzero-power6 \
bzero-ppc32 mempcpy-power7 mempcpy-ppc32 memchr-power7 \
memchr-ppc32 memrchr-power7 memrchr-ppc32 rawmemchr-power7 \
rawmemchr-ppc32
rawmemchr-ppc32 strlen-power7 strlen-ppc32
endif

6
sysdeps/powerpc/powerpc32/power4/multiarch/ifunc-impl-list.c
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@ -75,6 +75,12 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
__bzero_power6)
IFUNC_IMPL_ADD (array, i, bzero, 1, __bzero_ppc))
/* Support sysdeps/powerpc/powerpc32/power4/multiarch/strlen.c. */
IFUNC_IMPL (i, name, strlen,
IFUNC_IMPL_ADD (array, i, strlen, hwcap & PPC_FEATURE_HAS_VSX,
__strlen_power7)
IFUNC_IMPL_ADD (array, i, strlen, 1,
__strlen_ppc))
#endif
/* Support sysdeps/powerpc/powerpc32/power4/multiarch/memcmp.c. */

36
sysdeps/powerpc/powerpc32/power4/multiarch/strlen-power7.S Normal file
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@ -0,0 +1,36 @@
/* Optimized strlen implementation for PowerPC32/POWER7 using cmpb insn.
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 ENTRY
#define ENTRY(name) \
.globl C_SYMBOL_NAME(__strlen_power7); \
.type C_SYMBOL_NAME(__strlen_power7),@function; \
C_LABEL(__strlen_power7) \
cfi_startproc;
#undef END
#define END(name) \
cfi_endproc; \
ASM_SIZE_DIRECTIVE(__strlen_power7)
#undef libc_hidden_builtin_def
#define libc_hidden_builtin_def(name)
#include <sysdeps/powerpc/powerpc32/power7/strlen.S>

41
sysdeps/powerpc/powerpc32/power4/multiarch/strlen-ppc32.S Normal file
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@ -0,0 +1,41 @@
/* Default strlen implementation for PowerPC32.
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/>. */
#if defined SHARED && !defined NOT_IN_libc
#include <sysdep.h>
# undef ENTRY
# define ENTRY(name) \
.globl C_SYMBOL_NAME(__strlen_ppc); \
.type C_SYMBOL_NAME(__strlen_ppc),@function; \
C_LABEL(__strlen_ppc) \
cfi_startproc;
# undef END
# define END(name) \
cfi_endproc; \
ASM_SIZE_DIRECTIVE(__strlen_ppc)
# undef libc_hidden_builtin_def
# define libc_hidden_builtin_def(name) \
.globl __GI_strlen; __GI_strlen = __strlen_ppc
#endif
#include <sysdeps/powerpc/powerpc32/strlen.S>

31
sysdeps/powerpc/powerpc32/power4/multiarch/strlen.c Normal file
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@ -0,0 +1,31 @@
/* Multiple versions of strlen.
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/>. */
#if defined SHARED && !defined NOT_IN_libc
# include <string.h>
# include <shlib-compat.h>
# include "init-arch.h"
extern __typeof (strlen) __strlen_ppc attribute_hidden;
extern __typeof (strlen) __strlen_power7 attribute_hidden;
libc_ifunc (strlen,
(hwcap & PPC_FEATURE_HAS_VSX)
? __strlen_power7
: __strlen_ppc);
#endif