From 62982bf9782f0f3ef4259fc03b1b557f1332b182 Mon Sep 17 00:00:00 2001 From: Adhemerval Zanella Date: Fri, 13 Dec 2013 14:38:50 -0500 Subject: PowerPC: multiarch strnlen for PowerPC64 --- sysdeps/powerpc/powerpc64/multiarch/Makefile | 3 +- .../powerpc/powerpc64/multiarch/ifunc-impl-list.c | 7 ++++ .../powerpc/powerpc64/multiarch/strnlen-power7.S | 41 ++++++++++++++++++++++ .../powerpc/powerpc64/multiarch/strnlen-ppc64.c | 18 ++++++++++ sysdeps/powerpc/powerpc64/multiarch/strnlen.c | 36 +++++++++++++++++++ 5 files changed, 104 insertions(+), 1 deletion(-) create mode 100644 sysdeps/powerpc/powerpc64/multiarch/strnlen-power7.S create mode 100644 sysdeps/powerpc/powerpc64/multiarch/strnlen-ppc64.c create mode 100644 sysdeps/powerpc/powerpc64/multiarch/strnlen.c (limited to 'sysdeps') diff --git a/sysdeps/powerpc/powerpc64/multiarch/Makefile b/sysdeps/powerpc/powerpc64/multiarch/Makefile index 4bd2408bc5..8bad54e647 100644 --- a/sysdeps/powerpc/powerpc64/multiarch/Makefile +++ b/sysdeps/powerpc/powerpc64/multiarch/Makefile @@ -5,5 +5,6 @@ sysdep_routines += memcpy-power7 memcpy-a2 memcpy-power6 memcpy-cell \ memset-ppc64 bzero-power4 bzero-power6 bzero-power7 \ mempcpy-power7 mempcpy-ppc64 memchr-power7 memchr-ppc64 \ memrchr-power7 memrchr-ppc64 rawmemchr-power7 \ - rawmemchr-ppc64 strlen-power7 strlen-ppc64 + rawmemchr-ppc64 strlen-power7 strlen-ppc64 strnlen-power7 \ + strnlen-ppc64 endif diff --git a/sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c b/sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c index 385fdd5e34..b50e4c2d6f 100644 --- a/sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c +++ b/sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c @@ -129,5 +129,12 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array, IFUNC_IMPL_ADD (array, i, rawmemchr, 1, __rawmemchr_ppc)) + /* Support sysdeps/powerpc/powerpc64/multiarch/strnlen.c. */ + IFUNC_IMPL (i, name, strnlen, + IFUNC_IMPL_ADD (array, i, strnlen, hwcap & PPC_FEATURE_HAS_VSX, + __strnlen_power7) + IFUNC_IMPL_ADD (array, i, strnlen, 1, + __strnlen_ppc)) + return i; } diff --git a/sysdeps/powerpc/powerpc64/multiarch/strnlen-power7.S b/sysdeps/powerpc/powerpc64/multiarch/strnlen-power7.S new file mode 100644 index 0000000000..69a3683a0b --- /dev/null +++ b/sysdeps/powerpc/powerpc64/multiarch/strnlen-power7.S @@ -0,0 +1,41 @@ +/* Optimized strnlen version for 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 + . */ + +#include + +#undef ENTRY +#define ENTRY(name) \ + .section ".text"; \ + ENTRY_2(__strnlen_power7) \ + .align ALIGNARG(2); \ + BODY_LABEL(__strnlen_power7): \ + cfi_startproc; \ + LOCALENTRY(__strnlen_power7) + +#undef END +#define END(name) \ + cfi_endproc; \ + TRACEBACK(__strnlen_power7) \ + END_2(__strnlen_power7) + +#undef libc_hidden_builtin_def +#define libc_hidden_builtin_def(name) +#undef weak_alias(name, alias) +#define weak_alias(name, alias) + +#include diff --git a/sysdeps/powerpc/powerpc64/multiarch/strnlen-ppc64.c b/sysdeps/powerpc/powerpc64/multiarch/strnlen-ppc64.c new file mode 100644 index 0000000000..bc4d8ae3cb --- /dev/null +++ b/sysdeps/powerpc/powerpc64/multiarch/strnlen-ppc64.c @@ -0,0 +1,18 @@ +/* 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 diff --git a/sysdeps/powerpc/powerpc64/multiarch/strnlen.c b/sysdeps/powerpc/powerpc64/multiarch/strnlen.c new file mode 100644 index 0000000000..00806779c2 --- /dev/null +++ b/sysdeps/powerpc/powerpc64/multiarch/strnlen.c @@ -0,0 +1,36 @@ +/* Multiple versions of strnlen. + 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 (__strnlen) __strnlen_ppc attribute_hidden; +extern __typeof (__strnlen) __strnlen_power7 attribute_hidden; + +libc_ifunc (__strnlen, + (hwcap & PPC_FEATURE_HAS_VSX) + ? __strnlen_power7 + : __strnlen_ppc); +weak_alias (__strnlen, strnlen) +libc_hidden_def (strnlen) + +#else +#include +#endif -- cgit v1.2.3