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authorAdhemerval Zanella <azanella@linux.vnet.ibm.com>2013-12-13 14:32:31 -0500
committerAdhemerval Zanella <azanella@linux.vnet.ibm.com>2013-12-13 14:32:31 -0500
commit07253fcf7b03535b26c81ee216d284ed7f1e250b (patch)
treef963615b7fc32edb2ffe942ee5f5cf9b3aebee00 /sysdeps/powerpc
parentb5beafbceec80b5a33d3383dde88196afc966e67 (diff)
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PowerPC: multirach memcmp for PowerPC64
Diffstat (limited to 'sysdeps/powerpc')
-rw-r--r--sysdeps/powerpc/powerpc64/multiarch/Makefile3
-rw-r--r--sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c8
-rw-r--r--sysdeps/powerpc/powerpc64/multiarch/memcmp-power4.S42
-rw-r--r--sysdeps/powerpc/powerpc64/multiarch/memcmp-power7.S42
-rw-r--r--sysdeps/powerpc/powerpc64/multiarch/memcmp-ppc64.c33
-rw-r--r--sysdeps/powerpc/powerpc64/multiarch/memcmp.c39
6 files changed, 166 insertions, 1 deletions
diff --git a/sysdeps/powerpc/powerpc64/multiarch/Makefile b/sysdeps/powerpc/powerpc64/multiarch/Makefile
index 74670210fa..4dd2f38bbd 100644
--- a/sysdeps/powerpc/powerpc64/multiarch/Makefile
+++ b/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 a/sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c b/sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c
index 034e551d67..338a71c4b5 100644
--- a/sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c
+++ b/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 a/sysdeps/powerpc/powerpc64/multiarch/memcmp-power4.S b/sysdeps/powerpc/powerpc64/multiarch/memcmp-power4.S
new file mode 100644
index 0000000000..d98857d06b
--- /dev/null
+++ b/sysdeps/powerpc/powerpc64/multiarch/memcmp-power4.S
@@ -0,0 +1,42 @@
+/* Optimized memcmp implementation for PowerPC64/POWER4.
+ 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
+ <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; \
+ LOCALENTRY(__memcmp_power4)
+
+#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 a/sysdeps/powerpc/powerpc64/multiarch/memcmp-power7.S b/sysdeps/powerpc/powerpc64/multiarch/memcmp-power7.S
new file mode 100644
index 0000000000..9e027d47dc
--- /dev/null
+++ b/sysdeps/powerpc/powerpc64/multiarch/memcmp-power7.S
@@ -0,0 +1,42 @@
+/* Optimized memcmp implementation for PowerPC64/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
+ <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; \
+ LOCALENTRY(__memcmp_power7)
+
+#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 a/sysdeps/powerpc/powerpc64/multiarch/memcmp-ppc64.c b/sysdeps/powerpc/powerpc64/multiarch/memcmp-ppc64.c
new file mode 100644
index 0000000000..685e530bc6
--- /dev/null
+++ b/sysdeps/powerpc/powerpc64/multiarch/memcmp-ppc64.c
@@ -0,0 +1,33 @@
+/* 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
+ <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 a/sysdeps/powerpc/powerpc64/multiarch/memcmp.c b/sysdeps/powerpc/powerpc64/multiarch/memcmp.c
new file mode 100644
index 0000000000..b63c8e13fb
--- /dev/null
+++ b/sysdeps/powerpc/powerpc64/multiarch/memcmp.c
@@ -0,0 +1,39 @@
+/* Multiple versions of memcmp. PowerPC64 version.
+ 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
+ <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