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PowerPC: multiarch memrchr for PowerPC64

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Adhemerval Zanella 2013-12-13 14:36:50 -05:00
parent 870f867648
commit cd05ba9135
6 changed files with 118 additions and 1 deletions
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11
ChangeLog
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@ -1,3 +1,14 @@
2013-12-13 Adhemerval Zanella <azanella@linux.vnet.ibm.com>
* sysdeps/powerpc/powerpc64/multiarch/Makefile: Add memrchr multiarch
implementation.
* sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c
(__libc_ifunc_impl_list): Likewise.
* sysdeps/powerpc/powerpc64/multiarch/memrchr-power7.S: New file.
* sysdeps/powerpc/powerpc64/multiarch/memrchr-ppc64.c: New file.
* sysdeps/powerpc/powerpc64/multiarch/memrchr.c: New file: multiarch
memrchr for PPC64.
2013-12-13 Adhemerval Zanella <azanella@linux.vnet.ibm.com>
* sysdeps/powerpc/powerpc64/multiarch/Makefile: Add memchr multiarch

3
sysdeps/powerpc/powerpc64/multiarch/Makefile
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@ -3,5 +3,6 @@ sysdep_routines += memcpy-power7 memcpy-a2 memcpy-power6 memcpy-cell \
memcpy-power4 memcpy-ppc64 memcmp-power7 memcmp-power4 \
memcmp-ppc64 memset-power7 memset-power6 memset-power4 \
memset-ppc64 bzero-power4 bzero-power6 bzero-power7 \
mempcpy-power7 mempcpy-ppc64 memchr-power7 memchr-ppc64
mempcpy-power7 mempcpy-ppc64 memchr-power7 memchr-ppc64 \
memrchr-power7 memrchr-ppc64
endif

8
sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c
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@ -106,5 +106,13 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
IFUNC_IMPL_ADD (array, i, memchr, 1,
__memchr_ppc))
/* Support sysdeps/powerpc/powerpc64/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;
}

41
sysdeps/powerpc/powerpc64/multiarch/memrchr-power7.S Normal file
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@ -0,0 +1,41 @@
/* Optimized memrchr implementation for PowerPC64/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 ENTRY
#define ENTRY(name) \
.section ".text"; \
ENTRY_2(__memrchr_power7) \
.align ALIGNARG(2); \
BODY_LABEL(__memrchr_power7): \
cfi_startproc; \
LOCALENTRY(__memrchr_power7)
#undef END
#define END(name) \
cfi_endproc; \
TRACEBACK(__memrchr_power7) \
END_2(__memrchr_power7)
#undef libc_hidden_builtin_def
#define libc_hidden_builtin_def(name)
#undef weak_alias
#define weak_alias(name,alias)
#include <sysdeps/powerpc/powerpc64/power7/memrchr.S>

19
sysdeps/powerpc/powerpc64/multiarch/memrchr-ppc64.c Normal file
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@ -0,0 +1,19 @@
/* PowerPC64 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/>. */
#include <sysdeps/powerpc/powerpc32/power4/multiarch/memrchr-ppc32.c>

37
sysdeps/powerpc/powerpc64/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