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From 09f1f5cc860480fd09383bca00eb71e0f71aae79 Mon Sep 17 00:00:00 2001
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From: Rajalakshmi Srinivasaraghavan <raji@linux.vnet.ibm.com>
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Date: Wed, 30 Jul 2014 05:17:26 -0500
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Subject: [PATCH] PowerPC: multiarch mempcpy for PowerPC64
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commit f00be62b08c1440800898339f74fb4db20b19eef
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Author: Adhemerval Zanella <azanella@linux.vnet.ibm.com>
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Date: Fri Dec 13 14:34:06 2013 -0500
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Added sysdeps/powerpc/powerpc32/power4/multiarch/mempcpy-ppc32.c and
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string/mempcpy.c apart from original commit.
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---
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string/mempcpy.c | 9 ++---
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.../powerpc32/power4/multiarch/mempcpy-ppc32.c | 32 +++++++++++++++++
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sysdeps/powerpc/powerpc64/multiarch/Makefile | 3 +-
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.../powerpc/powerpc64/multiarch/ifunc-impl-list.c | 8 +++++
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.../powerpc/powerpc64/multiarch/mempcpy-power7.S | 41 ++++++++++++++++++++++
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.../powerpc/powerpc64/multiarch/mempcpy-ppc64.c | 19 ++++++++++
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sysdeps/powerpc/powerpc64/multiarch/mempcpy.c | 38 ++++++++++++++++++++
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7 files changed, 145 insertions(+), 5 deletions(-)
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create mode 100644 sysdeps/powerpc/powerpc32/power4/multiarch/mempcpy-ppc32.c
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create mode 100644 sysdeps/powerpc/powerpc64/multiarch/mempcpy-power7.S
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create mode 100644 sysdeps/powerpc/powerpc64/multiarch/mempcpy-ppc64.c
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create mode 100644 sysdeps/powerpc/powerpc64/multiarch/mempcpy.c
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diff --git a/string/mempcpy.c b/string/mempcpy.c
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index 2a542e3..7509c24 100644
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--- a/string/mempcpy.c
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+++ b/string/mempcpy.c
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@@ -26,11 +26,12 @@
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#undef mempcpy
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#undef __mempcpy
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+#ifndef MEMPCPY
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+# define MEMPCPY __mempcpy
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+#endif
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+
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void *
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-__mempcpy (dstpp, srcpp, len)
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- void *dstpp;
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- const void *srcpp;
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- size_t len;
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+MEMPCPY (void *dstpp, const void *srcpp, size_t len)
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{
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unsigned long int dstp = (long int) dstpp;
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unsigned long int srcp = (long int) srcpp;
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diff --git a/sysdeps/powerpc/powerpc32/power4/multiarch/mempcpy-ppc32.c b/sysdeps/powerpc/powerpc32/power4/multiarch/mempcpy-ppc32.c
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new file mode 100644
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index 0000000..8dc77e9
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--- /dev/null
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+++ b/sysdeps/powerpc/powerpc32/power4/multiarch/mempcpy-ppc32.c
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@@ -0,0 +1,32 @@
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+/* PowerPC32 default implementation of mempcpy.
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+ Copyright (C) 2013-2014 Free Software Foundation, Inc.
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+ This file is part of the GNU C Library.
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+
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+ The GNU C Library is free software; you can redistribute it and/or
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+ modify it under the terms of the GNU Lesser General Public
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+ License as published by the Free Software Foundation; either
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+ version 2.1 of the License, or (at your option) any later version.
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+
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+ The GNU C Library is distributed in the hope that it will be useful,
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+ but WITHOUT ANY WARRANTY; without even the implied warranty of
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+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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+ Lesser General Public License for more details.
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+
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+ You should have received a copy of the GNU Lesser General Public
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+ License along with the GNU C Library; if not, see
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+ <http://www.gnu.org/licenses/>. */
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+
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+#define MEMPCPY __mempcpy_ppc
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+
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+#undef libc_hidden_def
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+#define libc_hidden_def(name)
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+#undef weak_alias
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+#define weak_alias(a, b)
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+
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+#if defined SHARED
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+# undef libc_hidden_builtin_def
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+# define libc_hidden_builtin_def(name) \
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+ __hidden_ver1 (__mempcpy_ppc, __GI_mempcpy, __mempcpy_ppc);
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+#endif
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+
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+#include <string/mempcpy.c>
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diff --git a/sysdeps/powerpc/powerpc64/multiarch/Makefile b/sysdeps/powerpc/powerpc64/multiarch/Makefile
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index 424d2cd..22560e8 100644
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--- a/sysdeps/powerpc/powerpc64/multiarch/Makefile
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+++ b/sysdeps/powerpc/powerpc64/multiarch/Makefile
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@@ -2,5 +2,6 @@ ifeq ($(subdir),string)
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sysdep_routines += memcpy-power7 memcpy-a2 memcpy-power6 memcpy-cell \
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memcpy-power4 memcpy-ppc64 memcmp-power7 memcmp-power4 \
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memcmp-ppc64 memset-power7 memset-power6 memset-power4 \
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- memset-ppc64 bzero-power4 bzero-power6 bzero-power7
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+ memset-ppc64 bzero-power4 bzero-power6 bzero-power7 \
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+ mempcpy-power7 mempcpy-ppc64
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endif
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diff --git a/sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c b/sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c
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index 11e7063..c72c229 100644
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--- a/sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c
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+++ b/sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c
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@@ -90,5 +90,13 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
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__bzero_power4)
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IFUNC_IMPL_ADD (array, i, bzero, 1, __bzero_ppc))
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+ /* Support sysdeps/powerpc/powerpc64/multiarch/mempcpy.c. */
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+ IFUNC_IMPL (i, name, mempcpy,
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+ IFUNC_IMPL_ADD (array, i, mempcpy,
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+ hwcap & PPC_FEATURE_HAS_VSX,
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+ __mempcpy_power7)
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+ IFUNC_IMPL_ADD (array, i, mempcpy, 1,
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+ __mempcpy_ppc))
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+
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return i;
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}
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diff --git a/sysdeps/powerpc/powerpc64/multiarch/mempcpy-power7.S b/sysdeps/powerpc/powerpc64/multiarch/mempcpy-power7.S
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new file mode 100644
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index 0000000..6a79847
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--- /dev/null
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+++ b/sysdeps/powerpc/powerpc64/multiarch/mempcpy-power7.S
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@@ -0,0 +1,41 @@
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+/* Optimized mempcpy implementation for PowerPC/POWER7.
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+ Copyright (C) 2013-2014 Free Software Foundation, Inc.
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+ This file is part of the GNU C Library.
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+
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+ The GNU C Library is free software; you can redistribute it and/or
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+ modify it under the terms of the GNU Lesser General Public
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+ License as published by the Free Software Foundation; either
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+ version 2.1 of the License, or (at your option) any later version.
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+
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+ The GNU C Library is distributed in the hope that it will be useful,
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+ but WITHOUT ANY WARRANTY; without even the implied warranty of
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+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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+ Lesser General Public License for more details.
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+
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+ You should have received a copy of the GNU Lesser General Public
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+ License along with the GNU C Library; if not, see
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+ <http://www.gnu.org/licenses/>. */
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+
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+#include <sysdep.h>
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+
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+#undef EALIGN
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+#define EALIGN(name, alignt, words) \
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+ .section ".text"; \
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+ ENTRY_2(__mempcpy_power7) \
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+ .align ALIGNARG(alignt); \
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+ EALIGN_W_##words; \
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+ BODY_LABEL(__mempcpy_power7): \
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+ cfi_startproc;
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+
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+#undef END_GEN_TB
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+#define END_GEN_TB(name, mask) \
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+ cfi_endproc; \
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+ TRACEBACK_MASK(__mempcpy_power7,mask) \
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+ END_2(__mempcpy_power7)
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+
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+#undef libc_hidden_builtin_def
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+#define libc_hidden_builtin_def(name)
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+#undef weak_alias
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+#define weak_alias(name, alias)
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+
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+#include <sysdeps/powerpc/powerpc64/power7/mempcpy.S>
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diff --git a/sysdeps/powerpc/powerpc64/multiarch/mempcpy-ppc64.c b/sysdeps/powerpc/powerpc64/multiarch/mempcpy-ppc64.c
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new file mode 100644
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index 0000000..78260bb
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--- /dev/null
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+++ b/sysdeps/powerpc/powerpc64/multiarch/mempcpy-ppc64.c
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@@ -0,0 +1,19 @@
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+/* PowerPC64 default implementation of mempcpy.
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+ Copyright (C) 2013-2014 Free Software Foundation, Inc.
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+ This file is part of the GNU C Library.
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+
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+ The GNU C Library is free software; you can redistribute it and/or
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+ modify it under the terms of the GNU Lesser General Public
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+ License as published by the Free Software Foundation; either
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+ version 2.1 of the License, or (at your option) any later version.
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+
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+ The GNU C Library is distributed in the hope that it will be useful,
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+ but WITHOUT ANY WARRANTY; without even the implied warranty of
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+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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+ Lesser General Public License for more details.
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+
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+ You should have received a copy of the GNU Lesser General Public
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+ License along with the GNU C Library; if not, see
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+ <http://www.gnu.org/licenses/>. */
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+
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+#include <sysdeps/powerpc/powerpc32/power4/multiarch/mempcpy-ppc32.c>
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diff --git a/sysdeps/powerpc/powerpc64/multiarch/mempcpy.c b/sysdeps/powerpc/powerpc64/multiarch/mempcpy.c
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new file mode 100644
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index 0000000..38fbcc3
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--- /dev/null
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+++ b/sysdeps/powerpc/powerpc64/multiarch/mempcpy.c
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@@ -0,0 +1,38 @@
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+/* Multiple versions of mempcpy.
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+ Copyright (C) 2013-2014 Free Software Foundation, Inc.
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+ This file is part of the GNU C Library.
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+
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+ The GNU C Library is free software; you can redistribute it and/or
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+ modify it under the terms of the GNU Lesser General Public
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+ License as published by the Free Software Foundation; either
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+ version 2.1 of the License, or (at your option) any later version.
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+
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+ The GNU C Library is distributed in the hope that it will be useful,
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+ but WITHOUT ANY WARRANTY; without even the implied warranty of
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+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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+ Lesser General Public License for more details.
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+
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+ You should have received a copy of the GNU Lesser General Public
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+ License along with the GNU C Library; if not, see
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+ <http://www.gnu.org/licenses/>. */
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+
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+#ifndef NOT_IN_libc
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+# include <string.h>
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+# include <shlib-compat.h>
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+# include "init-arch.h"
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+
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+extern __typeof (__mempcpy) __mempcpy_ppc attribute_hidden;
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+extern __typeof (__mempcpy) __mempcpy_power7 attribute_hidden;
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+
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+/* Avoid DWARF definition DIE on ifunc symbol so that GDB can handle
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+ ifunc symbol properly. */
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+libc_ifunc (__mempcpy,
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+ (hwcap & PPC_FEATURE_HAS_VSX)
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+ ? __mempcpy_power7
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+ : __mempcpy_ppc);
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+
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+weak_alias (__mempcpy, mempcpy)
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+libc_hidden_def (mempcpy)
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+#else
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+# include <string/mempcpy.c>
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+#endif
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--
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1.8.3.1
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