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authorAdhemerval Zanella <azanella@linux.vnet.ibm.com>2013-10-14 07:40:52 -0500
committerAdhemerval Zanella <azanella@linux.vnet.ibm.com>2013-12-06 05:46:59 -0600
commit87da8bdbe1a2c3410b9cef027d88e5028e3c0111 (patch)
treef03d4ee15e90061c98cf3614409085bca07948ca
parent20ed471427e162167143cfc9ed0f59889bc75ed6 (diff)
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PowerPC: multiarch mempcpy for PowerPC32
-rw-r--r--ChangeLog14
-rw-r--r--string/mempcpy.c6
-rw-r--r--sysdeps/powerpc/powerpc32/power4/multiarch/Makefile2
-rw-r--r--sysdeps/powerpc/powerpc32/power4/multiarch/ifunc-impl-list.c8
-rw-r--r--sysdeps/powerpc/powerpc32/power4/multiarch/mempcpy-power7.S35
-rw-r--r--sysdeps/powerpc/powerpc32/power4/multiarch/mempcpy-ppc32.c32
-rw-r--r--sysdeps/powerpc/powerpc32/power4/multiarch/mempcpy.c38
7 files changed, 133 insertions, 2 deletions
diff --git a/ChangeLog b/ChangeLog
index 7c81a15f0e..4305f27aeb 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,19 @@
2013-12-06 Adhemerval Zanella <azanella@linux.vnet.ibm.com>
+ * string/mempcpy.c (__mempcpy): Using macro to redefine symbol name.
+ * sysdeps/powerpc/powerpc32/power4/multiarch/mempcpy-power7.S: New
+ file.
+ * sysdeps/powerpc/powerpc32/power4/multiarch/mempcpy-ppc32.c: New
+ file.
+ * sysdeps/powerpc/powerpc32/power4/multiarch/mempcpy.c: New
+ file: multiarch mempcpy for PPC32.
+ * sysdeps/powerpc/powerpc32/power4/multiarch/Makefile: Add mempcpy
+ multiarch objects.
+ * sysdeps/powerpc/powerpc32/power4/multiarch/ifunc-impl-list.c
+ (__libc_ifunc_impl_list): Likewise.
+
+2013-12-06 Adhemerval Zanella <azanella@linux.vnet.ibm.com>
+
* sysdeps/powerpc/powerpc32/power4/multiarch/bzero-power6.S: New file.
* sysdeps/powerpc/powerpc32/power4/multiarch/bzero-power7.S: New file.
* sysdeps/powerpc/powerpc32/power4/multiarch/bzero-ppc32.S: New file.
diff --git a/string/mempcpy.c b/string/mempcpy.c
index c0d2448205..a626c9cc60 100644
--- a/string/mempcpy.c
+++ b/string/mempcpy.c
@@ -24,8 +24,12 @@
#undef mempcpy
#undef __mempcpy
+#ifndef MEMPCPY
+# define MEMPCPY __mempcpy
+#endif
+
void *
-__mempcpy (void *dest, const void *src, size_t len)
+MEMPCPY (void *dest, const void *src, size_t len)
{
return memcpy (dest, src, len) + len;
}
diff --git a/sysdeps/powerpc/powerpc32/power4/multiarch/Makefile b/sysdeps/powerpc/powerpc32/power4/multiarch/Makefile
index 077bbf8d1d..ba88f0f455 100644
--- a/sysdeps/powerpc/powerpc32/power4/multiarch/Makefile
+++ b/sysdeps/powerpc/powerpc32/power4/multiarch/Makefile
@@ -2,5 +2,5 @@ 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
+ bzero-ppc32 mempcpy-power7 mempcpy-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 55a8811bf7..da5f244de1 100644
--- a/sysdeps/powerpc/powerpc32/power4/multiarch/ifunc-impl-list.c
+++ b/sysdeps/powerpc/powerpc32/power4/multiarch/ifunc-impl-list.c
@@ -83,5 +83,13 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
__memcmp_power7)
IFUNC_IMPL_ADD (array, i, memcmp, 1, __memcmp_ppc))
+ /* Support sysdeps/powerpc/powerpc32/power4/multiarch/mempcpy.c. */
+ IFUNC_IMPL (i, name, mempcpy,
+ IFUNC_IMPL_ADD (array, i, mempcpy,
+ hwcap & PPC_FEATURE_HAS_VSX,
+ __mempcpy_power7)
+ IFUNC_IMPL_ADD (array, i, mempcpy, 1,
+ __mempcpy_ppc))
+
return i;
}
diff --git a/sysdeps/powerpc/powerpc32/power4/multiarch/mempcpy-power7.S b/sysdeps/powerpc/powerpc32/power4/multiarch/mempcpy-power7.S
new file mode 100644
index 0000000000..355726b512
--- /dev/null
+++ b/sysdeps/powerpc/powerpc32/power4/multiarch/mempcpy-power7.S
@@ -0,0 +1,35 @@
+/* Optimized mempcpy implementation 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
+ <http://www.gnu.org/licenses/>. */
+
+#include <sysdep.h>
+
+#undef EALIGN
+#define EALIGN(name, alignt, words) \
+ .globl C_SYMBOL_NAME(__mempcpy_power7); \
+ .type C_SYMBOL_NAME(__mempcpy_power7),@function; \
+ .align ALIGNARG(alignt); \
+ EALIGN_W_##words; \
+ C_LABEL(__mempcpy_power7) \
+ cfi_startproc;
+
+#undef END
+#define END(name) \
+ cfi_endproc; \
+ ASM_SIZE_DIRECTIVE(__mempcpy_power7)
+
+#include <sysdeps/powerpc/powerpc32/power7/mempcpy.S>
diff --git a/sysdeps/powerpc/powerpc32/power4/multiarch/mempcpy-ppc32.c b/sysdeps/powerpc/powerpc32/power4/multiarch/mempcpy-ppc32.c
new file mode 100644
index 0000000000..b5bc5713d7
--- /dev/null
+++ b/sysdeps/powerpc/powerpc32/power4/multiarch/mempcpy-ppc32.c
@@ -0,0 +1,32 @@
+/* PowerPC32 default implementation of mempcpy.
+ 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 MEMPCPY __mempcpy_ppc
+
+#undef libc_hidden_def
+#define libc_hidden_def(name)
+#undef weak_alias
+#define weak_alias(a, b)
+
+#if defined SHARED
+# undef libc_hidden_builtin_def
+# define libc_hidden_builtin_def(name) \
+ __hidden_ver1 (__mempcpy_ppc, __GI_mempcpy, __mempcpy_ppc);
+#endif
+
+#include <string/mempcpy.c>
diff --git a/sysdeps/powerpc/powerpc32/power4/multiarch/mempcpy.c b/sysdeps/powerpc/powerpc32/power4/multiarch/mempcpy.c
new file mode 100644
index 0000000000..7100eb513a
--- /dev/null
+++ b/sysdeps/powerpc/powerpc32/power4/multiarch/mempcpy.c
@@ -0,0 +1,38 @@
+/* Multiple versions of mempcpy.
+ 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 (__mempcpy) __mempcpy_ppc attribute_hidden;
+extern __typeof (__mempcpy) __mempcpy_power7 attribute_hidden;
+
+/* Avoid DWARF definition DIE on ifunc symbol so that GDB can handle
+ ifunc symbol properly. */
+libc_ifunc (__mempcpy,
+ (hwcap & PPC_FEATURE_HAS_VSX)
+ ? __mempcpy_power7
+ : __mempcpy_ppc);
+
+weak_alias (__mempcpy, mempcpy)
+libc_hidden_def (mempcpy)
+#else
+# include <string/mempcpy.c>
+#endif