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PowerPC: multiarch strncmp for PowerPC32

This commit is contained in:
Adhemerval Zanella 2013-10-14 08:31:17 -05:00
parent ae9cf7a2e8
commit a19e01a355
6 changed files with 134 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/strncmp-power7.S: New
file.
* sysdeps/powerpc/powerpc32/power4/multiarch/strncmp-ppc32.S: New
file.
* sysdeps/powerpc/powerpc32/power4/multiarch/strncmp.c: New file:
multiarch strncmp for PPC32.
* sysdeps/powerpc/powerpc32/power4/multiarch/Makefile: Added strncmp
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/rtld-strnlen.c: New file.

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

7
sysdeps/powerpc/powerpc32/power4/multiarch/ifunc-impl-list.c
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@ -88,6 +88,13 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
__strnlen_power7)
IFUNC_IMPL_ADD (array, i, strnlen, 1,
__strnlen_ppc))
/* Support sysdeps/powerpc/powerpc32/multiarch/strncmp.c. */
IFUNC_IMPL (i, name, strncmp,
IFUNC_IMPL_ADD (array, i, strncmp, hwcap & PPC_FEATURE_HAS_VSX,
__strncmp_power7)
IFUNC_IMPL_ADD (array, i, strncmp, 1,
__strncmp_ppc))
#endif
/* Support sysdeps/powerpc/powerpc32/power4/multiarch/memcmp.c. */

38
sysdeps/powerpc/powerpc32/power4/multiarch/strncmp-power7.S Normal file
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@ -0,0 +1,38 @@
/* Optimized strcmp implementation for POWER7/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/>. */
#include <sysdep.h>
#undef EALIGN
#define EALIGN(name, alignt, words) \
.globl C_SYMBOL_NAME(__strncmp_power7); \
.type C_SYMBOL_NAME(__strncmp_power7),@function; \
.align ALIGNARG(alignt); \
EALIGN_W_##words; \
C_LABEL(__strncmp_power7) \
cfi_startproc;
#undef END
#define END(name) \
cfi_endproc; \
ASM_SIZE_DIRECTIVE(__strncmp_power7)
#undef libc_hidden_builtin_def
#define libc_hidden_builtin_def(name)
#include <sysdeps/powerpc/powerpc32/power7/strncmp.S>

40
sysdeps/powerpc/powerpc32/power4/multiarch/strncmp-ppc32.S Normal file
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@ -0,0 +1,40 @@
/* 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>
#if defined SHARED && !defined NOT_IN_libc
# undef EALIGN
# define EALIGN(name, alignt, words) \
.globl C_SYMBOL_NAME(__strncmp_ppc); \
.type C_SYMBOL_NAME(__strncmp_ppc),@function; \
.align ALIGNARG(alignt); \
EALIGN_W_##words; \
C_LABEL(__strncmp_ppc) \
cfi_startproc;
# undef END
# define END(name) \
cfi_endproc; \
ASM_SIZE_DIRECTIVE(__strncmp_ppc)
# undef libc_hidden_builtin_def
# define libc_hidden_builtin_def(name) \
.globl __GI_strncmp; __GI_strncmp = __strncmp_ppc
#endif
#include <sysdeps/powerpc/powerpc32/power4/strncmp.S>

35
sysdeps/powerpc/powerpc32/power4/multiarch/strncmp.c Normal file
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@ -0,0 +1,35 @@
/* Multiple versions of strncmp.
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 multiple versions only for definition in libc. */
#if defined SHARED && !defined NOT_IN_libc
# include <string.h>
# include <shlib-compat.h>
# include "init-arch.h"
extern __typeof (strncmp) __strncmp_ppc attribute_hidden;
extern __typeof (strncmp) __strncmp_power4 attribute_hidden;
extern __typeof (strncmp) __strncmp_power7 attribute_hidden;
/* Avoid DWARF definition DIE on ifunc symbol so that GDB can handle
ifunc symbol properly. */
libc_ifunc (strncmp,
(hwcap & PPC_FEATURE_HAS_VSX)
? __strncmp_power7
: __strncmp_ppc);
#endif