From 03a6aa6a63e992abd693cf29828ca7f8ff6a3c0c Mon Sep 17 00:00:00 2001 From: Adhemerval Zanella Date: Mon, 14 Oct 2013 08:02:41 -0500 Subject: [PATCH] PowerPC: multiarch memrchr for PowerPC32 --- ChangeLog | 13 ++++++ .../powerpc32/power4/multiarch/Makefile | 2 +- .../power4/multiarch/ifunc-impl-list.c | 8 ++++ .../power4/multiarch/memrchr-power7.S | 40 +++++++++++++++++++ .../power4/multiarch/memrchr-ppc32.c | 25 ++++++++++++ .../powerpc32/power4/multiarch/memrchr.c | 37 +++++++++++++++++ 6 files changed, 124 insertions(+), 1 deletion(-) create mode 100644 sysdeps/powerpc/powerpc32/power4/multiarch/memrchr-power7.S create mode 100644 sysdeps/powerpc/powerpc32/power4/multiarch/memrchr-ppc32.c create mode 100644 sysdeps/powerpc/powerpc32/power4/multiarch/memrchr.c diff --git a/ChangeLog b/ChangeLog index 8acbeec061..62854af221 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,16 @@ +2013-12-06 Adhemerval Zanella + + * 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 * string/memchr.c (__memchr): Using macro to redefine symbol name. diff --git a/sysdeps/powerpc/powerpc32/power4/multiarch/Makefile b/sysdeps/powerpc/powerpc32/power4/multiarch/Makefile index 31466a0f43..8a17639ae2 100644 --- a/sysdeps/powerpc/powerpc32/power4/multiarch/Makefile +++ b/sysdeps/powerpc/powerpc32/power4/multiarch/Makefile @@ -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 diff --git a/sysdeps/powerpc/powerpc32/power4/multiarch/ifunc-impl-list.c b/sysdeps/powerpc/powerpc32/power4/multiarch/ifunc-impl-list.c index 33ac710a98..13a028e343 100644 --- a/sysdeps/powerpc/powerpc32/power4/multiarch/ifunc-impl-list.c +++ b/sysdeps/powerpc/powerpc32/power4/multiarch/ifunc-impl-list.c @@ -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; } diff --git a/sysdeps/powerpc/powerpc32/power4/multiarch/memrchr-power7.S b/sysdeps/powerpc/powerpc32/power4/multiarch/memrchr-power7.S new file mode 100644 index 0000000000..cb2916c5c5 --- /dev/null +++ b/sysdeps/powerpc/powerpc32/power4/multiarch/memrchr-power7.S @@ -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 . + 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 + . */ + +#include + +#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 diff --git a/sysdeps/powerpc/powerpc32/power4/multiarch/memrchr-ppc32.c b/sysdeps/powerpc/powerpc32/power4/multiarch/memrchr-ppc32.c new file mode 100644 index 0000000000..88e5ce6b4d --- /dev/null +++ b/sysdeps/powerpc/powerpc32/power4/multiarch/memrchr-ppc32.c @@ -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 + . */ + +#ifndef NOT_IN_libc +# define MEMRCHR __memrchr_ppc +# include +extern void *__memrchr_ppc (const void *, int, size_t); +#endif + +#include diff --git a/sysdeps/powerpc/powerpc32/power4/multiarch/memrchr.c b/sysdeps/powerpc/powerpc32/power4/multiarch/memrchr.c new file mode 100644 index 0000000000..cc362bac28 --- /dev/null +++ b/sysdeps/powerpc/powerpc32/power4/multiarch/memrchr.c @@ -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 + . */ + +#ifndef NOT_IN_libc +# include +# include +# 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 +#endif