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authorAdhemerval Zanella <azanella@linux.vnet.ibm.com>2013-10-14 07:57:14 -0500
committerAdhemerval Zanella <azanella@linux.vnet.ibm.com>2013-12-06 05:47:00 -0600
commit1c62e6d960d7c09497fb8ce5936bb84564fa9b30 (patch)
treee78cfcf6860eb433c5e5a6b48e055cf77155fdf1 /sysdeps/powerpc/powerpc32
parent87da8bdbe1a2c3410b9cef027d88e5028e3c0111 (diff)
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PowerPC: multiarch memchr for PowerPC32
Diffstat (limited to 'sysdeps/powerpc/powerpc32')
-rw-r--r--sysdeps/powerpc/powerpc32/power4/multiarch/Makefile3
-rw-r--r--sysdeps/powerpc/powerpc32/power4/multiarch/ifunc-impl-list.c8
-rw-r--r--sysdeps/powerpc/powerpc32/power4/multiarch/memchr-power7.S40
-rw-r--r--sysdeps/powerpc/powerpc32/power4/multiarch/memchr-ppc32.c34
-rw-r--r--sysdeps/powerpc/powerpc32/power4/multiarch/memchr.c38
5 files changed, 122 insertions, 1 deletions
diff --git a/sysdeps/powerpc/powerpc32/power4/multiarch/Makefile b/sysdeps/powerpc/powerpc32/power4/multiarch/Makefile
index ba88f0f455..31466a0f43 100644
--- a/sysdeps/powerpc/powerpc32/power4/multiarch/Makefile
+++ b/sysdeps/powerpc/powerpc32/power4/multiarch/Makefile
@@ -2,5 +2,6 @@ ifeq ($(subdir),string)
sysdep_routines += memcpy-power7 memcpy-a2 memcpy-power6 memcpy-cell \
memcpy-ppc32 memcmp-power7 memcmp-ppc32 memset-power7 \
memset-power6 memset-ppc32 bzero-power7 bzero-power6 \
- bzero-ppc32 mempcpy-power7 mempcpy-ppc32
+ bzero-ppc32 mempcpy-power7 mempcpy-ppc32 memchr-power7 \
+ memchr-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 da5f244de1..33ac710a98 100644
--- a/sysdeps/powerpc/powerpc32/power4/multiarch/ifunc-impl-list.c
+++ b/sysdeps/powerpc/powerpc32/power4/multiarch/ifunc-impl-list.c
@@ -91,5 +91,13 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
IFUNC_IMPL_ADD (array, i, mempcpy, 1,
__mempcpy_ppc))
+ /* Support sysdeps/powerpc/powerpc32/power4/multiarch/memchr.c. */
+ IFUNC_IMPL (i, name, memchr,
+ IFUNC_IMPL_ADD (array, i, memchr,
+ hwcap & PPC_FEATURE_HAS_VSX,
+ __memchr_power7)
+ IFUNC_IMPL_ADD (array, i, memchr, 1,
+ __memchr_ppc))
+
return i;
}
diff --git a/sysdeps/powerpc/powerpc32/power4/multiarch/memchr-power7.S b/sysdeps/powerpc/powerpc32/power4/multiarch/memchr-power7.S
new file mode 100644
index 0000000000..a8a077d076
--- /dev/null
+++ b/sysdeps/powerpc/powerpc32/power4/multiarch/memchr-power7.S
@@ -0,0 +1,40 @@
+/* Optimized memchr implementation for PowerPC32/POWER7 using cmpb insn.
+ Copyright (C) 2010-2013 Free Software Foundation, Inc.
+ Contributed by Luis Machado <luisgpm@br.ibm.com>.
+ 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) \
+ .globl C_SYMBOL_NAME(__memchr_power7); \
+ .type C_SYMBOL_NAME(__memchr_power7),@function; \
+ C_LABEL(__memchr_power7) \
+ cfi_startproc;
+
+#undef END
+#define END(name) \
+ cfi_endproc; \
+ ASM_SIZE_DIRECTIVE(__memchr_power7)
+
+#undef weak_alias
+#define weak_alias(name, alias)
+
+#undef libc_hidden_builtin_def
+#define libc_hidden_builtin_def(name)
+
+#include <sysdeps/powerpc/powerpc32/power7/memchr.S>
diff --git a/sysdeps/powerpc/powerpc32/power4/multiarch/memchr-ppc32.c b/sysdeps/powerpc/powerpc32/power4/multiarch/memchr-ppc32.c
new file mode 100644
index 0000000000..8f11ea815f
--- /dev/null
+++ b/sysdeps/powerpc/powerpc32/power4/multiarch/memchr-ppc32.c
@@ -0,0 +1,34 @@
+/* PowerPC32 default implementation of memchr.
+ 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 MEMCHR __memchr_ppc
+
+#undef weak_alias
+#define weak_alias(a, b)
+
+#ifdef SHARED
+# undef libc_hidden_builtin_def
+# define libc_hidden_builtin_def(name) \
+ __hidden_ver1 (__memchr_ppc, __GI_memchr, __memchr_ppc);
+#endif
+
+extern __typeof (memchr) __memchr_ppc attribute_hidden;
+
+#include <string/memchr.c>
diff --git a/sysdeps/powerpc/powerpc32/power4/multiarch/memchr.c b/sysdeps/powerpc/powerpc32/power4/multiarch/memchr.c
new file mode 100644
index 0000000000..a4237f3967
--- /dev/null
+++ b/sysdeps/powerpc/powerpc32/power4/multiarch/memchr.c
@@ -0,0 +1,38 @@
+/* Multiple versions of memchr.
+ 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/>. */
+
+#ifndef NOT_IN_libc
+# include <string.h>
+# include <shlib-compat.h>
+# include "init-arch.h"
+
+extern __typeof (__memchr) __memchr_ppc attribute_hidden;
+extern __typeof (__memchr) __memchr_power7 attribute_hidden;
+
+/* Avoid DWARF definition DIE on ifunc symbol so that GDB can handle
+ ifunc symbol properly. */
+libc_ifunc (__memchr,
+ (hwcap & PPC_FEATURE_HAS_VSX)
+ ? __memchr_power7
+ : __memchr_ppc);
+
+weak_alias (__memchr, memchr)
+libc_hidden_builtin_def (memchr)
+#else
+#include <string/memchr.c>
+#endif