From 09f1f5cc860480fd09383bca00eb71e0f71aae79 Mon Sep 17 00:00:00 2001
From: Rajalakshmi Srinivasaraghavan <raji@linux.vnet.ibm.com>
Date: Wed, 30 Jul 2014 05:17:26 -0500
Subject: [PATCH] PowerPC: multiarch mempcpy for PowerPC64
commit f00be62b08c1440800898339f74fb4db20b19eef
Author: Adhemerval Zanella <azanella@linux.vnet.ibm.com>
Date: Fri Dec 13 14:34:06 2013 -0500
Added sysdeps/powerpc/powerpc32/power4/multiarch/mempcpy-ppc32.c and
string/mempcpy.c apart from original commit.
---
string/mempcpy.c | 9 ++---
.../powerpc32/power4/multiarch/mempcpy-ppc32.c | 32 +++++++++++++++++
sysdeps/powerpc/powerpc64/multiarch/Makefile | 3 +-
.../powerpc/powerpc64/multiarch/ifunc-impl-list.c | 8 +++++
.../powerpc/powerpc64/multiarch/mempcpy-power7.S | 41 ++++++++++++++++++++++
.../powerpc/powerpc64/multiarch/mempcpy-ppc64.c | 19 ++++++++++
sysdeps/powerpc/powerpc64/multiarch/mempcpy.c | 38 ++++++++++++++++++++
7 files changed, 145 insertions(+), 5 deletions(-)
create mode 100644 sysdeps/powerpc/powerpc32/power4/multiarch/mempcpy-ppc32.c
create mode 100644 sysdeps/powerpc/powerpc64/multiarch/mempcpy-power7.S
create mode 100644 sysdeps/powerpc/powerpc64/multiarch/mempcpy-ppc64.c
create mode 100644 sysdeps/powerpc/powerpc64/multiarch/mempcpy.c
diff --git a/string/mempcpy.c b/string/mempcpy.c
index 2a542e3..7509c24 100644
--- a/string/mempcpy.c
+++ b/string/mempcpy.c
@@ -26,11 +26,12 @@
#undef mempcpy
#undef __mempcpy
+#ifndef MEMPCPY
+# define MEMPCPY __mempcpy
+#endif
+
void *
-__mempcpy (dstpp, srcpp, len)
- void *dstpp;
- const void *srcpp;
- size_t len;
+MEMPCPY (void *dstpp, const void *srcpp, size_t len)
{
unsigned long int dstp = (long int) dstpp;
unsigned long int srcp = (long int) srcpp;
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 0000000..8dc77e9
--- /dev/null
+++ b/sysdeps/powerpc/powerpc32/power4/multiarch/mempcpy-ppc32.c
@@ -0,0 +1,32 @@
+/* PowerPC32 default implementation of mempcpy.
+ 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 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/powerpc64/multiarch/Makefile b/sysdeps/powerpc/powerpc64/multiarch/Makefile
index 424d2cd..22560e8 100644
--- a/sysdeps/powerpc/powerpc64/multiarch/Makefile
+++ b/sysdeps/powerpc/powerpc64/multiarch/Makefile
@@ -2,5 +2,6 @@ ifeq ($(subdir),string)
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
+ memset-ppc64 bzero-power4 bzero-power6 bzero-power7 \
+ mempcpy-power7 mempcpy-ppc64
endif
diff --git a/sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c b/sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c
index 11e7063..c72c229 100644
--- a/sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c
+++ b/sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c
@@ -90,5 +90,13 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
__bzero_power4)
IFUNC_IMPL_ADD (array, i, bzero, 1, __bzero_ppc))
+ /* Support sysdeps/powerpc/powerpc64/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/powerpc64/multiarch/mempcpy-power7.S b/sysdeps/powerpc/powerpc64/multiarch/mempcpy-power7.S
new file mode 100644
index 0000000..6a79847
--- /dev/null
+++ b/sysdeps/powerpc/powerpc64/multiarch/mempcpy-power7.S
@@ -0,0 +1,41 @@
+/* Optimized mempcpy implementation for PowerPC/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(__mempcpy_power7) \
+ .align ALIGNARG(alignt); \
+ EALIGN_W_##words; \
+ BODY_LABEL(__mempcpy_power7): \
+ cfi_startproc;
+
+#undef END_GEN_TB
+#define END_GEN_TB(name, mask) \
+ cfi_endproc; \
+ TRACEBACK_MASK(__mempcpy_power7,mask) \
+ END_2(__mempcpy_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/mempcpy.S>
diff --git a/sysdeps/powerpc/powerpc64/multiarch/mempcpy-ppc64.c b/sysdeps/powerpc/powerpc64/multiarch/mempcpy-ppc64.c
new file mode 100644
index 0000000..78260bb
--- /dev/null
+++ b/sysdeps/powerpc/powerpc64/multiarch/mempcpy-ppc64.c
@@ -0,0 +1,19 @@
+/* PowerPC64 default implementation of mempcpy.
+ 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/mempcpy-ppc32.c>
diff --git a/sysdeps/powerpc/powerpc64/multiarch/mempcpy.c b/sysdeps/powerpc/powerpc64/multiarch/mempcpy.c
new file mode 100644
index 0000000..38fbcc3
--- /dev/null
+++ b/sysdeps/powerpc/powerpc64/multiarch/mempcpy.c
@@ -0,0 +1,38 @@
+/* Multiple versions of mempcpy.
+ 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 (__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
--
1.8.3.1