From 1a5121cbdc34d9f56bb1bbb3f3ce3a90ddc1ff6b Mon Sep 17 00:00:00 2001
From: Rajalakshmi Srinivasaraghavan <raji@linux.vnet.ibm.com>
Date: Wed, 30 Jul 2014 05:55:13 -0500
Subject: [PATCH] PowerPC: multiarch strchr for PowerPC64
commit 372dc060e0a25044ba5a797c71fb0ee53921fe47
Author: Adhemerval Zanella <azanella@linux.vnet.ibm.com>
Date: Fri Dec 13 14:49:54 2013 -0500
---
sysdeps/powerpc/powerpc64/multiarch/Makefile | 2 +-
.../powerpc/powerpc64/multiarch/ifunc-impl-list.c | 8 +++++
sysdeps/powerpc/powerpc64/multiarch/rtld-strchr.S | 18 ++++++++++
.../powerpc/powerpc64/multiarch/strchr-power7.S | 38 ++++++++++++++++++++
sysdeps/powerpc/powerpc64/multiarch/strchr-ppc64.S | 41 ++++++++++++++++++++++
sysdeps/powerpc/powerpc64/multiarch/strchr.c | 35 ++++++++++++++++++
6 files changed, 141 insertions(+), 1 deletion(-)
create mode 100644 sysdeps/powerpc/powerpc64/multiarch/rtld-strchr.S
create mode 100644 sysdeps/powerpc/powerpc64/multiarch/strchr-power7.S
create mode 100644 sysdeps/powerpc/powerpc64/multiarch/strchr-ppc64.S
create mode 100644 sysdeps/powerpc/powerpc64/multiarch/strchr.c
diff --git glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/multiarch/Makefile glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/multiarch/Makefile
index 22baf1c..f7c5853 100644
--- glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/multiarch/Makefile
+++ glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/multiarch/Makefile
@@ -8,7 +8,7 @@ sysdep_routines += memcpy-power7 memcpy-a2 memcpy-power6 memcpy-cell \
rawmemchr-ppc64 strlen-power7 strlen-ppc64 strnlen-power7 \
strnlen-ppc64 strcasecmp-power7 strcasecmp_l-power7 \
strncase-power7 strncase_l-power7 strncmp-power7 \
- strncmp-power4 strncmp-ppc64
+ strncmp-power4 strncmp-ppc64 strchr-power7 strchr-ppc64
CFLAGS-strncase-power7.c += -mcpu=power7 -funroll-loops
CFLAGS-strncase_l-power7.c += -mcpu=power7 -funroll-loops
diff --git glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c
index 67f75a5..3b005ea 100644
--- glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c
+++ glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c
@@ -86,6 +86,14 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
__strncmp_power4)
IFUNC_IMPL_ADD (array, i, strncmp, 1,
__strncmp_ppc))
+
+ /* Support sysdeps/powerpc/powerpc64/multiarch/strchr.c. */
+ IFUNC_IMPL (i, name, strchr,
+ IFUNC_IMPL_ADD (array, i, strchr,
+ hwcap & PPC_FEATURE_HAS_VSX,
+ __strchr_power7)
+ IFUNC_IMPL_ADD (array, i, strchr, 1,
+ __strchr_ppc))
#endif
/* Support sysdeps/powerpc/powerpc64/multiarch/memcmp.c. */
diff --git glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/multiarch/rtld-strchr.S glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/multiarch/rtld-strchr.S
new file mode 100644
index 0000000..5c62657
--- /dev/null
+++ glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/multiarch/rtld-strchr.S
@@ -0,0 +1,18 @@
+/* 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/powerpc64/strchr.S>
diff --git glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/multiarch/strchr-power7.S glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/multiarch/strchr-power7.S
new file mode 100644
index 0000000..0b2ca42
--- /dev/null
+++ glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/multiarch/strchr-power7.S
@@ -0,0 +1,38 @@
+/* Optimized strchr implementation for 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 ENTRY
+#define ENTRY(name) \
+ .section ".text"; \
+ ENTRY_2(__strchr_power7) \
+ .align ALIGNARG(2); \
+ BODY_LABEL(__strchr_power7): \
+ cfi_startproc;
+
+#undef END
+#define END(name) \
+ cfi_endproc; \
+ TRACEBACK(__strchr_power7) \
+ END_2(__strchr_power7)
+
+#undef libc_hidden_builtin_def
+#define libc_hidden_builtin_def(name)
+
+#include <sysdeps/powerpc/powerpc64/power7/strchr.S>
diff --git glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/multiarch/strchr-ppc64.S glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/multiarch/strchr-ppc64.S
new file mode 100644
index 0000000..ded9284
--- /dev/null
+++ glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/multiarch/strchr-ppc64.S
@@ -0,0 +1,41 @@
+/* PowerPC64 default implementation of strchr.
+ 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>
+
+#ifdef SHARED
+# undef ENTRY
+# define ENTRY(name) \
+ .section ".text"; \
+ ENTRY_2(__strchr_ppc) \
+ .align ALIGNARG(2); \
+ BODY_LABEL(__strchr_ppc): \
+ cfi_startproc;
+
+# undef END
+# define END(name) \
+ cfi_endproc; \
+ TRACEBACK(__strchr_ppc) \
+ END_2(__strchr_ppc)
+
+# undef libc_hidden_builtin_def
+# define libc_hidden_builtin_def(name) \
+ .globl __GI_strchr; __GI_strchr = __strchr_ppc
+#endif
+
+#include <sysdeps/powerpc/powerpc64/strchr.S>
diff --git glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/multiarch/strchr.c glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/multiarch/strchr.c
new file mode 100644
index 0000000..74a9d54
--- /dev/null
+++ glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/multiarch/strchr.c
@@ -0,0 +1,35 @@
+/* Multiple versions of strchr.
+ 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 multiple versions only for definition in libc. */
+#if defined SHARED && !defined NOT_IN_libc
+# include <string.h>
+# include <shlib-compat.h>
+# include "init-arch.h"
+
+extern __typeof (strchr) __strchr_ppc attribute_hidden;
+extern __typeof (strchr) __strchr_power7 attribute_hidden;
+
+/* Avoid DWARF definition DIE on ifunc symbol so that GDB can handle
+ ifunc symbol properly. */
+libc_ifunc (strchr,
+ (hwcap & PPC_FEATURE_HAS_VSX)
+ ? __strchr_power7
+ : __strchr_ppc);
+weak_alias (strchr, index)
+#endif
--
1.8.3.1