You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
256 lines
9.9 KiB
256 lines
9.9 KiB
From 2d5b6d3bb4813306ba5aa9ba03a56fe686bc6d4c Mon Sep 17 00:00:00 2001 |
|
From: Rajalakshmi Srinivasaraghavan <raji@linux.vnet.ibm.com> |
|
Date: Wed, 30 Jul 2014 05:05:19 -0500 |
|
Subject: [PATCH] PowerPC: multirach memcmp for PowerPC64 |
|
|
|
commit 07253fcf7b03535b26c81ee216d284ed7f1e250b |
|
Author: Adhemerval Zanella <azanella@linux.vnet.ibm.com> |
|
Date: Fri Dec 13 14:32:31 2013 -0500 |
|
--- |
|
string/memcmp.c | 6 +++- |
|
sysdeps/powerpc/powerpc64/multiarch/Makefile | 3 +- |
|
.../powerpc/powerpc64/multiarch/ifunc-impl-list.c | 8 +++++ |
|
.../powerpc/powerpc64/multiarch/memcmp-power4.S | 41 ++++++++++++++++++++++ |
|
.../powerpc/powerpc64/multiarch/memcmp-power7.S | 41 ++++++++++++++++++++++ |
|
sysdeps/powerpc/powerpc64/multiarch/memcmp-ppc64.c | 33 +++++++++++++++++ |
|
sysdeps/powerpc/powerpc64/multiarch/memcmp.c | 39 ++++++++++++++++++++ |
|
7 files changed, 169 insertions(+), 2 deletions(-) |
|
create mode 100644 sysdeps/powerpc/powerpc64/multiarch/memcmp-power4.S |
|
create mode 100644 sysdeps/powerpc/powerpc64/multiarch/memcmp-power7.S |
|
create mode 100644 sysdeps/powerpc/powerpc64/multiarch/memcmp-ppc64.c |
|
create mode 100644 sysdeps/powerpc/powerpc64/multiarch/memcmp.c |
|
|
|
diff --git glibc-2.17-c758a686/string/memcmp.c glibc-2.17-c758a686/string/memcmp.c |
|
index a73cc19..4a3ef58 100644 |
|
--- glibc-2.17-c758a686/string/memcmp.c |
|
+++ glibc-2.17-c758a686/string/memcmp.c |
|
@@ -30,6 +30,10 @@ |
|
|
|
#undef memcmp |
|
|
|
+#ifndef MEMCMP |
|
+# define MEMCMP memcmp |
|
+#endif |
|
+ |
|
#ifdef _LIBC |
|
|
|
# include <memcopy.h> |
|
@@ -308,7 +312,7 @@ memcmp_not_common_alignment (srcp1, srcp2, len) |
|
} |
|
|
|
int |
|
-memcmp (s1, s2, len) |
|
+MEMCMP (s1, s2, len) |
|
const __ptr_t s1; |
|
const __ptr_t s2; |
|
size_t len; |
|
diff --git glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/multiarch/Makefile glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/multiarch/Makefile |
|
index 638c102..c0bc520 100644 |
|
--- glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/multiarch/Makefile |
|
+++ glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/multiarch/Makefile |
|
@@ -1,4 +1,5 @@ |
|
ifeq ($(subdir),string) |
|
sysdep_routines += memcpy-power7 memcpy-a2 memcpy-power6 memcpy-cell \ |
|
- memcpy-power4 memcpy-ppc64 |
|
+ memcpy-power4 memcpy-ppc64 memcmp-power7 memcmp-power4 \ |
|
+ memcmp-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 5090af4..295ebca 100644 |
|
--- glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c |
|
+++ glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c |
|
@@ -62,5 +62,13 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array, |
|
IFUNC_IMPL_ADD (array, i, memcpy, 1, __memcpy_ppc)) |
|
#endif |
|
|
|
+ /* Support sysdeps/powerpc/powerpc64/multiarch/memcmp.c. */ |
|
+ IFUNC_IMPL (i, name, memcmp, |
|
+ IFUNC_IMPL_ADD (array, i, memcmp, hwcap & PPC_FEATURE_HAS_VSX, |
|
+ __memcmp_power7) |
|
+ IFUNC_IMPL_ADD (array, i, memcmp, hwcap & PPC_FEATURE_POWER4, |
|
+ __memcmp_power4) |
|
+ IFUNC_IMPL_ADD (array, i, memcmp, 1, __memcmp_ppc)) |
|
+ |
|
return i; |
|
} |
|
diff --git glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/multiarch/memcmp-power4.S glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/multiarch/memcmp-power4.S |
|
new file mode 100644 |
|
index 0000000..12db42c |
|
--- /dev/null |
|
+++ glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/multiarch/memcmp-power4.S |
|
@@ -0,0 +1,41 @@ |
|
+/* Optimized memcmp implementation for PowerPC64/POWER4. |
|
+ 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 EALIGN |
|
+#define EALIGN(name, alignt, words) \ |
|
+ .section ".text"; \ |
|
+ ENTRY_2(__memcmp_power4) \ |
|
+ .align ALIGNARG(alignt); \ |
|
+ EALIGN_W_##words; \ |
|
+ BODY_LABEL(__memcmp_power4): \ |
|
+ cfi_startproc; |
|
+ |
|
+#undef END |
|
+#define END(name) \ |
|
+ cfi_endproc; \ |
|
+ TRACEBACK(__memcmp_power4) \ |
|
+ END_2(__memcmp_power4) |
|
+ |
|
+#undef libc_hidden_builtin_def |
|
+#define libc_hidden_builtin_def(name) |
|
+#undef weak_alias |
|
+#define weak_alias(name,alias) |
|
+ |
|
+#include <sysdeps/powerpc/powerpc64/power4/memcmp.S> |
|
diff --git glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/multiarch/memcmp-power7.S glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/multiarch/memcmp-power7.S |
|
new file mode 100644 |
|
index 0000000..4898a88 |
|
--- /dev/null |
|
+++ glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/multiarch/memcmp-power7.S |
|
@@ -0,0 +1,41 @@ |
|
+/* Optimized memcmp 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 EALIGN |
|
+#define EALIGN(name, alignt, words) \ |
|
+ .section ".text"; \ |
|
+ ENTRY_2(__memcmp_power7) \ |
|
+ .align ALIGNARG(alignt); \ |
|
+ EALIGN_W_##words; \ |
|
+ BODY_LABEL(__memcmp_power7): \ |
|
+ cfi_startproc; |
|
+ |
|
+#undef END |
|
+#define END(name) \ |
|
+ cfi_endproc; \ |
|
+ TRACEBACK(__memcmp_power7) \ |
|
+ END_2(__memcmp_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/memcmp.S> |
|
diff --git glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/multiarch/memcmp-ppc64.c glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/multiarch/memcmp-ppc64.c |
|
new file mode 100644 |
|
index 0000000..1a39d4a |
|
--- /dev/null |
|
+++ glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/multiarch/memcmp-ppc64.c |
|
@@ -0,0 +1,33 @@ |
|
+/* 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 <string.h> |
|
+ |
|
+#define MEMCMP __memcmp_ppc |
|
+#undef weak_alias |
|
+#define weak_alias(name, aliasname) \ |
|
+ extern __typeof (__memcmp_ppc) aliasname \ |
|
+ __attribute__ ((weak, alias ("__memcmp_ppc"))); |
|
+#if !defined(NOT_IN_libc) && defined(SHARED) |
|
+# undef libc_hidden_builtin_def |
|
+# define libc_hidden_builtin_def(name) \ |
|
+ __hidden_ver1(__memcmp_ppc, __GI_memcmp, __memcmp_ppc); |
|
+#endif |
|
+ |
|
+extern __typeof (memcmp) __memcmp_ppc attribute_hidden; |
|
+ |
|
+#include <string/memcmp.c> |
|
diff --git glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/multiarch/memcmp.c glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/multiarch/memcmp.c |
|
new file mode 100644 |
|
index 0000000..af90f0a |
|
--- /dev/null |
|
+++ glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/multiarch/memcmp.c |
|
@@ -0,0 +1,39 @@ |
|
+/* Multiple versions of memcmp. PowerPC64 version. |
|
+ 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/>. */ |
|
+ |
|
+/* Define multiple versions only for definition in libc. */ |
|
+#ifndef NOT_IN_libc |
|
+# include <string.h> |
|
+# include <shlib-compat.h> |
|
+# include "init-arch.h" |
|
+ |
|
+extern __typeof (memcmp) __memcmp_ppc attribute_hidden; |
|
+extern __typeof (memcmp) __memcmp_power4 attribute_hidden; |
|
+extern __typeof (memcmp) __memcmp_power7 attribute_hidden; |
|
+ |
|
+/* Avoid DWARF definition DIE on ifunc symbol so that GDB can handle |
|
+ ifunc symbol properly. */ |
|
+libc_ifunc (memcmp, |
|
+ (hwcap & PPC_FEATURE_HAS_VSX) |
|
+ ? __memcmp_power7 : |
|
+ (hwcap & PPC_FEATURE_POWER4) |
|
+ ? __memcmp_power4 |
|
+ : __memcmp_ppc); |
|
+#else |
|
+#include <string/memcmp.c> |
|
+#endif |
|
-- |
|
1.8.3.1 |
|
|
|
|