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PowerPC: multiarch memrchr for PowerPC32

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This commit is contained in:
Adhemerval Zanella 2013-10-14 08:02:41 -05:00
parent 1c62e6d960
commit 03a6aa6a63
6 changed files with 124 additions and 1 deletions
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13
ChangeLog
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@ -1,3 +1,16 @@
2013-12-06 Adhemerval Zanella <azanella@linux.vnet.ibm.com>
* sysdeps/powerpc/powerpc32/power4/multiarch/memrchr-power7.S: New
file.
* sysdeps/powerpc/powerpc32/power4/multiarch/memrchr-ppc32.c: New
file.
* sysdeps/powerpc/powerpc32/power4/multiarch/memrchr.c: New
file: memrchr multiarch for PPC32.
* sysdeps/powerpc/powerpc32/power4/multiarch/Makefile: Added memrchr
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>
* string/memchr.c (__memchr): Using macro to redefine symbol name.

2
sysdeps/powerpc/powerpc32/power4/multiarch/Makefile
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@ -3,5 +3,5 @@ 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 mempcpy-power7 mempcpy-ppc32 memchr-power7 \
memchr-ppc32
memchr-ppc32 memrchr-power7 memrchr-ppc32
endif

8
sysdeps/powerpc/powerpc32/power4/multiarch/ifunc-impl-list.c
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@ -99,5 +99,13 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
IFUNC_IMPL_ADD (array, i, memchr, 1,
__memchr_ppc))
/* Support sysdeps/powerpc/powerpc32/power4/multiarch/memrchr.c. */
IFUNC_IMPL (i, name, memrchr,
IFUNC_IMPL_ADD (array, i, memrchr,
hwcap & PPC_FEATURE_HAS_VSX,
__memrchr_power7)
IFUNC_IMPL_ADD (array, i, memrchr, 1,
__memrchr_ppc))
return i;
}

40
sysdeps/powerpc/powerpc32/power4/multiarch/memrchr-power7.S Normal file
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@ -0,0 +1,40 @@
/* Optimized memrchr implementation for PowerPC32/POWER7 using cmpb insn.
Copyright (C) 2010-2013 Free Software Foundation, Inc.
Contributed by Luis Machado <luisgpm@br.ibm.com>.
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(__memrchr_power7); \
.type C_SYMBOL_NAME(__memrchr_power7),@function; \
C_LABEL(__memrchr_power7) \
cfi_startproc;
#undef END
#define END(name) \
cfi_endproc; \
ASM_SIZE_DIRECTIVE(__memrchr_power7)
#undef weak_alias
#define weak_alias(name, alias)
#undef libc_hidden_builtin_def
#define libc_hidden_builtin_def(name)
#include <sysdeps/powerpc/powerpc32/power7/memrchr.S>

25
sysdeps/powerpc/powerpc32/power4/multiarch/memrchr-ppc32.c Normal file
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@ -0,0 +1,25 @@
/* PowerPC32 default implementation of memrchr.
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
# define MEMRCHR __memrchr_ppc
# include <string.h>
extern void *__memrchr_ppc (const void *, int, size_t);
#endif
#include <string/memrchr.c>

37
sysdeps/powerpc/powerpc32/power4/multiarch/memrchr.c Normal file
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@ -0,0 +1,37 @@
/* Multiple versions of memrchr.
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 (__memrchr) __memrchr_ppc attribute_hidden;
extern __typeof (__memrchr) __memrchr_power7 attribute_hidden;
/* Avoid DWARF definition DIE on ifunc symbol so that GDB can handle
ifunc symbol properly. */
libc_ifunc (__memrchr,
(hwcap & PPC_FEATURE_HAS_VSX)
? __memrchr_power7
: __memrchr_ppc);
weak_alias (__memrchr, memrchr)
#else
#include <string/memrchr.c>
#endif