From 942cdf02caef0ea4fe257cf5898754b9b1897c4a Mon Sep 17 00:00:00 2001
From: Rajalakshmi Srinivasaraghavan <raji@linux.vnet.ibm.com>
Date: Wed, 30 Jul 2014 05:58:14 -0500
Subject: [PATCH] PowerPC: multiarch strchrnul for PowerPC64
commit 9ee2969b057862443b81789b56a61514edf34779
Author: Adhemerval Zanella <azanella@linux.vnet.ibm.com>
Date: Fri Dec 13 14:50:26 2013 -0500
Added sysdeps/powerpc/powerpc32/power4/multiarch/strchrnul-ppc32.c and
string/strchrnul.c apart from original commit.
---
string/strchrnul.c | 6 +++-
.../powerpc32/power4/multiarch/strchrnul-ppc32.c | 28 ++++++++++++++++
sysdeps/powerpc/powerpc64/multiarch/Makefile | 3 +-
.../powerpc/powerpc64/multiarch/ifunc-impl-list.c | 8 +++++
.../powerpc/powerpc64/multiarch/strchrnul-power7.S | 38 ++++++++++++++++++++++
.../powerpc/powerpc64/multiarch/strchrnul-ppc64.c | 19 +++++++++++
sysdeps/powerpc/powerpc64/multiarch/strchrnul.c | 37 +++++++++++++++++++++
7 files changed, 137 insertions(+), 2 deletions(-)
create mode 100644 sysdeps/powerpc/powerpc32/power4/multiarch/strchrnul-ppc32.c
create mode 100644 sysdeps/powerpc/powerpc64/multiarch/strchrnul-power7.S
create mode 100644 sysdeps/powerpc/powerpc64/multiarch/strchrnul-ppc64.c
create mode 100644 sysdeps/powerpc/powerpc64/multiarch/strchrnul.c
diff --git glibc-2.17-c758a686/string/strchrnul.c glibc-2.17-c758a686/string/strchrnul.c
index 0db5e23..39540a3 100644
--- glibc-2.17-c758a686/string/strchrnul.c
+++ glibc-2.17-c758a686/string/strchrnul.c
@@ -27,9 +27,13 @@
#undef __strchrnul
#undef strchrnul
+#ifndef STRCHRNUL
+# define STRCHRNUL __strchrnul
+#endif
+
/* Find the first occurrence of C in S or the final NUL byte. */
char *
-__strchrnul (s, c_in)
+STRCHRNUL (s, c_in)
const char *s;
int c_in;
{
diff --git glibc-2.17-c758a686/sysdeps/powerpc/powerpc32/power4/multiarch/strchrnul-ppc32.c glibc-2.17-c758a686/sysdeps/powerpc/powerpc32/power4/multiarch/strchrnul-ppc32.c
new file mode 100644
index 0000000..950643a
--- /dev/null
+++ glibc-2.17-c758a686/sysdeps/powerpc/powerpc32/power4/multiarch/strchrnul-ppc32.c
@@ -0,0 +1,28 @@
+/* PowerPC32 default implementation of strchrnul.
+ 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 <string.h>
+
+#define STRCHRNUL __strchrnul_ppc
+
+#undef weak_alias
+#define weak_alias(a,b )
+
+extern __typeof (strchrnul) __strchrnul_ppc attribute_hidden;
+
+#include <string/strchrnul.c>
diff --git glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/multiarch/Makefile glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/multiarch/Makefile
index f7c5853..15b86bd 100644
--- glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/multiarch/Makefile
+++ glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/multiarch/Makefile
@@ -8,7 +8,8 @@ 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 strchr-power7 strchr-ppc64
+ strncmp-power4 strncmp-ppc64 strchr-power7 strchr-ppc64 \
+ strchrnul-power7 strchrnul-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 3b005ea..9e3b89d 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
@@ -94,6 +94,14 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
__strchr_power7)
IFUNC_IMPL_ADD (array, i, strchr, 1,
__strchr_ppc))
+
+ /* Support sysdeps/powerpc/powerpc64/multiarch/strchrnul.c. */
+ IFUNC_IMPL (i, name, strchrnul,
+ IFUNC_IMPL_ADD (array, i, strchrnul,
+ hwcap & PPC_FEATURE_HAS_VSX,
+ __strchrnul_power7)
+ IFUNC_IMPL_ADD (array, i, strchrnul, 1,
+ __strchrnul_ppc))
#endif
/* Support sysdeps/powerpc/powerpc64/multiarch/memcmp.c. */
diff --git glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/multiarch/strchrnul-power7.S glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/multiarch/strchrnul-power7.S
new file mode 100644
index 0000000..87d7c03
--- /dev/null
+++ glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/multiarch/strchrnul-power7.S
@@ -0,0 +1,38 @@
+/* Optimized strchrnul 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(__strchrnul_power7) \
+ .align ALIGNARG(2); \
+ BODY_LABEL(__strchrnul_power7): \
+ cfi_startproc;
+
+#undef END
+#define END(name) \
+ cfi_endproc; \
+ TRACEBACK(__strchrnul_power7) \
+ END_2(__strchrnul_power7)
+
+#undef libc_hidden_builtin_def
+#define libc_hidden_builtin_def(name)
+
+#include <sysdeps/powerpc/powerpc64/power7/strchrnul.S>
diff --git glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/multiarch/strchrnul-ppc64.c glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/multiarch/strchrnul-ppc64.c
new file mode 100644
index 0000000..a76b335
--- /dev/null
+++ glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/multiarch/strchrnul-ppc64.c
@@ -0,0 +1,19 @@
+/* PowerPC64 default implementation of strchrnul.
+ 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/strchrnul-ppc32.c>
diff --git glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/multiarch/strchrnul.c glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/multiarch/strchrnul.c
new file mode 100644
index 0000000..dab1cbf
--- /dev/null
+++ glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/multiarch/strchrnul.c
@@ -0,0 +1,37 @@
+/* Multiple versions of strchrnul.
+ 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 (__strchrnul) __strchrnul_ppc attribute_hidden;
+extern __typeof (__strchrnul) __strchrnul_power7 attribute_hidden;
+
+/* Avoid DWARF definition DIE on ifunc symbol so that GDB can handle
+ ifunc symbol properly. */
+libc_ifunc (__strchrnul,
+ (hwcap & PPC_FEATURE_HAS_VSX)
+ ? __strchrnul_power7
+ : __strchrnul_ppc);
+
+weak_alias (__strchrnul, strchrnul)
+#else
+#include <string/strchrnul.c>
+#endif
--
1.8.3.1