From a19e01a355f1ffbb839b4d367307e34bad7f4df8 Mon Sep 17 00:00:00 2001 From: Adhemerval Zanella Date: Mon, 14 Oct 2013 08:31:17 -0500 Subject: PowerPC: multiarch strncmp for PowerPC32 --- .../powerpc/powerpc32/power4/multiarch/Makefile | 2 +- .../powerpc32/power4/multiarch/ifunc-impl-list.c | 7 ++++ .../powerpc32/power4/multiarch/strncmp-power7.S | 38 ++++++++++++++++++++ .../powerpc32/power4/multiarch/strncmp-ppc32.S | 40 ++++++++++++++++++++++ .../powerpc/powerpc32/power4/multiarch/strncmp.c | 35 +++++++++++++++++++ 5 files changed, 121 insertions(+), 1 deletion(-) create mode 100644 sysdeps/powerpc/powerpc32/power4/multiarch/strncmp-power7.S create mode 100644 sysdeps/powerpc/powerpc32/power4/multiarch/strncmp-ppc32.S create mode 100644 sysdeps/powerpc/powerpc32/power4/multiarch/strncmp.c (limited to 'sysdeps/powerpc/powerpc32/power4/multiarch') diff --git a/sysdeps/powerpc/powerpc32/power4/multiarch/Makefile b/sysdeps/powerpc/powerpc32/power4/multiarch/Makefile index b84f867f01..d82f6915af 100644 --- a/sysdeps/powerpc/powerpc32/power4/multiarch/Makefile +++ b/sysdeps/powerpc/powerpc32/power4/multiarch/Makefile @@ -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 diff --git a/sysdeps/powerpc/powerpc32/power4/multiarch/ifunc-impl-list.c b/sysdeps/powerpc/powerpc32/power4/multiarch/ifunc-impl-list.c index b2c6691c96..a964881900 100644 --- a/sysdeps/powerpc/powerpc32/power4/multiarch/ifunc-impl-list.c +++ b/sysdeps/powerpc/powerpc32/power4/multiarch/ifunc-impl-list.c @@ -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. */ diff --git a/sysdeps/powerpc/powerpc32/power4/multiarch/strncmp-power7.S b/sysdeps/powerpc/powerpc32/power4/multiarch/strncmp-power7.S new file mode 100644 index 0000000000..c9240e55be --- /dev/null +++ b/sysdeps/powerpc/powerpc32/power4/multiarch/strncmp-power7.S @@ -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 + . */ + +#include + +#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 diff --git a/sysdeps/powerpc/powerpc32/power4/multiarch/strncmp-ppc32.S b/sysdeps/powerpc/powerpc32/power4/multiarch/strncmp-ppc32.S new file mode 100644 index 0000000000..bd573bbfa9 --- /dev/null +++ b/sysdeps/powerpc/powerpc32/power4/multiarch/strncmp-ppc32.S @@ -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 + . */ + +#include + +#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 diff --git a/sysdeps/powerpc/powerpc32/power4/multiarch/strncmp.c b/sysdeps/powerpc/powerpc32/power4/multiarch/strncmp.c new file mode 100644 index 0000000000..5dea0769f7 --- /dev/null +++ b/sysdeps/powerpc/powerpc32/power4/multiarch/strncmp.c @@ -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 + . */ + +/* Define multiple versions only for definition in libc. */ +#if defined SHARED && !defined NOT_IN_libc +# include +# include +# 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 -- cgit v1.2.1