| From 6a69f5d33526bf8dafd65f3b53719402ce09d566 Mon Sep 17 00:00:00 2001 |
| From: Rajalakshmi Srinivasaraghavan <raji@linux.vnet.ibm.com> |
| Date: Wed, 30 Jul 2014 05:31:40 -0500 |
| Subject: [PATCH] PowerPC: multiarch memrchr for PowerPC64 |
| |
| commit 1fd005ad2f8ca30d44d5bfa036422b4ec281ea4a |
| Author: Adhemerval Zanella <azanella@linux.vnet.ibm.com> |
| Date: Fri Dec 13 14:37:26 2013 -0500 |
| |
| Added sysdeps/powerpc/powerpc32/power4/multiarch/memrchr-ppc32.c |
| apart from original commit |
| |
| .../powerpc32/power4/multiarch/memrchr-ppc32.c | 25 ++++++++++++++ |
| sysdeps/powerpc/powerpc64/multiarch/Makefile | 3 +- |
| .../powerpc/powerpc64/multiarch/ifunc-impl-list.c | 8 +++++ |
| .../powerpc/powerpc64/multiarch/memrchr-power7.S | 40 ++++++++++++++++++++++ |
| .../powerpc/powerpc64/multiarch/memrchr-ppc64.c | 19 ++++++++++ |
| sysdeps/powerpc/powerpc64/multiarch/memrchr.c | 37 ++++++++++++++++++++ |
| 6 files changed, 131 insertions(+), 1 deletion(-) |
| create mode 100644 sysdeps/powerpc/powerpc32/power4/multiarch/memrchr-ppc32.c |
| create mode 100644 sysdeps/powerpc/powerpc64/multiarch/memrchr-power7.S |
| create mode 100644 sysdeps/powerpc/powerpc64/multiarch/memrchr-ppc64.c |
| create mode 100644 sysdeps/powerpc/powerpc64/multiarch/memrchr.c |
| |
| diff --git glibc-2.17-c758a686/sysdeps/powerpc/powerpc32/power4/multiarch/memrchr-ppc32.c glibc-2.17-c758a686/sysdeps/powerpc/powerpc32/power4/multiarch/memrchr-ppc32.c |
| new file mode 100644 |
| index 0000000..c30e7d6 |
| |
| |
| @@ -0,0 +1,25 @@ |
| +/* PowerPC32 default implementation of memrchr. |
| + Copyright (C) 2013-2014 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/>. */ |
| + |
| +#ifndef NOT_IN_libc |
| +# define MEMRCHR __memrchr_ppc |
| +# include <string.h> |
| +extern void *__memrchr_ppc (const void *, int, size_t); |
| +#endif |
| + |
| +#include <string/memrchr.c> |
| diff --git glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/multiarch/Makefile glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/multiarch/Makefile |
| index b2815e7..db765f2 100644 |
| |
| |
| @@ -3,5 +3,6 @@ sysdep_routines += memcpy-power7 memcpy-a2 memcpy-power6 memcpy-cell \ |
| memcpy-power4 memcpy-ppc64 memcmp-power7 memcmp-power4 \ |
| memcmp-ppc64 memset-power7 memset-power6 memset-power4 \ |
| memset-ppc64 bzero-power4 bzero-power6 bzero-power7 \ |
| - mempcpy-power7 mempcpy-ppc64 memchr-power7 memchr-ppc64 |
| + mempcpy-power7 mempcpy-ppc64 memchr-power7 memchr-ppc64 \ |
| + memrchr-power7 memrchr-ppc64 |
| endif |
| diff --git glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c |
| index 663e294..a0700dc 100644 |
| |
| |
| @@ -106,5 +106,13 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array, |
| IFUNC_IMPL_ADD (array, i, memchr, 1, |
| __memchr_ppc)) |
| |
| + /* Support sysdeps/powerpc/powerpc64/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 glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/multiarch/memrchr-power7.S glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/multiarch/memrchr-power7.S |
| new file mode 100644 |
| index 0000000..42ee8e2 |
| |
| |
| @@ -0,0 +1,40 @@ |
| +/* Optimized memrchr implementation for PowerPC64/POWER7. |
| + Copyright (C) 2013-2014 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 ENTRY |
| +#define ENTRY(name) \ |
| + .section ".text"; \ |
| + ENTRY_2(__memrchr_power7) \ |
| + .align ALIGNARG(2); \ |
| + BODY_LABEL(__memrchr_power7): \ |
| + cfi_startproc; |
| + |
| +#undef END |
| +#define END(name) \ |
| + cfi_endproc; \ |
| + TRACEBACK(__memrchr_power7) \ |
| + END_2(__memrchr_power7) |
| + |
| +#undef libc_hidden_builtin_def |
| +#define libc_hidden_builtin_def(name) |
| +#undef weak_alias |
| +#define weak_alias(name,alias) |
| + |
| +#include <sysdeps/powerpc/powerpc64/power7/memrchr.S> |
| diff --git glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/multiarch/memrchr-ppc64.c glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/multiarch/memrchr-ppc64.c |
| new file mode 100644 |
| index 0000000..c2ee4be |
| |
| |
| @@ -0,0 +1,19 @@ |
| +/* PowerPC64 default implementation of memrchr. |
| + Copyright (C) 2013-2014 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 <sysdeps/powerpc/powerpc32/power4/multiarch/memrchr-ppc32.c> |
| diff --git glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/multiarch/memrchr.c glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/multiarch/memrchr.c |
| new file mode 100644 |
| index 0000000..610a957 |
| |
| |
| @@ -0,0 +1,37 @@ |
| +/* Multiple versions of memrchr. |
| + Copyright (C) 2013-2014 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/>. */ |
| + |
| +#ifndef NOT_IN_libc |
| +# include <string.h> |
| +# include <shlib-compat.h> |
| +# 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 <string/memrchr.c> |
| +#endif |
| -- |
| 1.8.3.1 |
| |