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PowerPC: multiarch memchr for PowerPC32
This commit is contained in:
Adhemerval Zanella
parent
87da8bdbe1
commit
1c62e6d960
13
ChangeLog
13
ChangeLog
@ -1,3 +1,16 @@
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2013-12-06 Adhemerval Zanella <azanella@linux.vnet.ibm.com>
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* string/memchr.c (__memchr): Using macro to redefine symbol name.
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* sysdeps/powerpc/powerpc32/power4/multiarch/memchr-power7.S: New
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file.
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* sysdeps/powerpc/powerpc32/power4/multiarch/memchr-ppc32.c: New File.
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* sysdeps/powerpc/powerpc32/power4/multiarch/memchr.c: New file:
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multiarch memchr for PPC32.
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* sysdeps/powerpc/powerpc32/power4/multiarch/Makefile: Add memchr
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multiarch objects.
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* sysdeps/powerpc/powerpc32/power4/multiarch/ifunc-impl-list.c
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(__libc_ifunc_impl_list): Likewise.
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2013-12-06 Adhemerval Zanella <azanella@linux.vnet.ibm.com>
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* string/mempcpy.c (__mempcpy): Using macro to redefine symbol name.
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@ -51,9 +51,13 @@
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#undef memchr
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#undef __memchr
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#ifndef MEMCHR
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# define MEMCHR __memchr
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#endif
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/* Search no more than N bytes of S for C. */
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__ptr_t
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__memchr (s, c_in, n)
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MEMCHR (s, c_in, n)
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const __ptr_t s;
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int c_in;
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size_t n;
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@ -2,5 +2,6 @@ ifeq ($(subdir),string)
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sysdep_routines += memcpy-power7 memcpy-a2 memcpy-power6 memcpy-cell \
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memcpy-ppc32 memcmp-power7 memcmp-ppc32 memset-power7 \
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memset-power6 memset-ppc32 bzero-power7 bzero-power6 \
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bzero-ppc32 mempcpy-power7 mempcpy-ppc32
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bzero-ppc32 mempcpy-power7 mempcpy-ppc32 memchr-power7 \
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memchr-ppc32
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endif
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@ -91,5 +91,13 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
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IFUNC_IMPL_ADD (array, i, mempcpy, 1,
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__mempcpy_ppc))
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/* Support sysdeps/powerpc/powerpc32/power4/multiarch/memchr.c. */
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IFUNC_IMPL (i, name, memchr,
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IFUNC_IMPL_ADD (array, i, memchr,
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hwcap & PPC_FEATURE_HAS_VSX,
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__memchr_power7)
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IFUNC_IMPL_ADD (array, i, memchr, 1,
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__memchr_ppc))
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return i;
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}
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40
sysdeps/powerpc/powerpc32/power4/multiarch/memchr-power7.S
Normal file
40
sysdeps/powerpc/powerpc32/power4/multiarch/memchr-power7.S
Normal file
@ -0,0 +1,40 @@
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/* Optimized memchr implementation for PowerPC32/POWER7 using cmpb insn.
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Copyright (C) 2010-2013 Free Software Foundation, Inc.
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Contributed by Luis Machado <luisgpm@br.ibm.com>.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#include <sysdep.h>
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#undef ENTRY
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#define ENTRY(name) \
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.globl C_SYMBOL_NAME(__memchr_power7); \
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.type C_SYMBOL_NAME(__memchr_power7),@function; \
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C_LABEL(__memchr_power7) \
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cfi_startproc;
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#undef END
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#define END(name) \
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cfi_endproc; \
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ASM_SIZE_DIRECTIVE(__memchr_power7)
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#undef weak_alias
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#define weak_alias(name, alias)
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#undef libc_hidden_builtin_def
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#define libc_hidden_builtin_def(name)
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#include <sysdeps/powerpc/powerpc32/power7/memchr.S>
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34
sysdeps/powerpc/powerpc32/power4/multiarch/memchr-ppc32.c
Normal file
34
sysdeps/powerpc/powerpc32/power4/multiarch/memchr-ppc32.c
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@ -0,0 +1,34 @@
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/* PowerPC32 default implementation of memchr.
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Copyright (C) 2013 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#include <string.h>
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#define MEMCHR __memchr_ppc
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#undef weak_alias
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#define weak_alias(a, b)
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#ifdef SHARED
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# undef libc_hidden_builtin_def
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# define libc_hidden_builtin_def(name) \
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__hidden_ver1 (__memchr_ppc, __GI_memchr, __memchr_ppc);
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#endif
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extern __typeof (memchr) __memchr_ppc attribute_hidden;
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#include <string/memchr.c>
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38
sysdeps/powerpc/powerpc32/power4/multiarch/memchr.c
Normal file
38
sysdeps/powerpc/powerpc32/power4/multiarch/memchr.c
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@ -0,0 +1,38 @@
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/* Multiple versions of memchr.
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Copyright (C) 2013 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#ifndef NOT_IN_libc
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# include <string.h>
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# include <shlib-compat.h>
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# include "init-arch.h"
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extern __typeof (__memchr) __memchr_ppc attribute_hidden;
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extern __typeof (__memchr) __memchr_power7 attribute_hidden;
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/* Avoid DWARF definition DIE on ifunc symbol so that GDB can handle
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ifunc symbol properly. */
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libc_ifunc (__memchr,
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(hwcap & PPC_FEATURE_HAS_VSX)
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? __memchr_power7
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: __memchr_ppc);
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weak_alias (__memchr, memchr)
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libc_hidden_builtin_def (memchr)
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#else
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#include <string/memchr.c>
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#endif
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