From dc5a73198455f4492a44dbc71fdadeb7551d5810 Mon Sep 17 00:00:00 2001
From: Rajalakshmi Srinivasaraghavan <raji@linux.vnet.ibm.com>
Date: Wed, 30 Jul 2014 05:41:40 -0500
Subject: [PATCH] PowerPC: multiarch strnlen for PowerPC64
commit 62982bf9782f0f3ef4259fc03b1b557f1332b182
Author: Adhemerval Zanella <azanella@linux.vnet.ibm.com>
Date: Fri Dec 13 14:38:50 2013 -0500
Added sysdeps/powerpc/powerpc32/power4/multiarch/strnlen-ppc32.c
apart from original commit.
---
.../powerpc32/power4/multiarch/strnlen-ppc32.c | 26 ++++++++++++++
sysdeps/powerpc/powerpc64/multiarch/Makefile | 3 +-
.../powerpc/powerpc64/multiarch/ifunc-impl-list.c | 7 ++++
.../powerpc/powerpc64/multiarch/strnlen-power7.S | 40 ++++++++++++++++++++++
.../powerpc/powerpc64/multiarch/strnlen-ppc64.c | 18 ++++++++++
sysdeps/powerpc/powerpc64/multiarch/strnlen.c | 36 +++++++++++++++++++
6 files changed, 129 insertions(+), 1 deletion(-)
create mode 100644 sysdeps/powerpc/powerpc32/power4/multiarch/strnlen-ppc32.c
create mode 100644 sysdeps/powerpc/powerpc64/multiarch/strnlen-power7.S
create mode 100644 sysdeps/powerpc/powerpc64/multiarch/strnlen-ppc64.c
create mode 100644 sysdeps/powerpc/powerpc64/multiarch/strnlen.c
diff --git a/sysdeps/powerpc/powerpc32/power4/multiarch/strnlen-ppc32.c b/sysdeps/powerpc/powerpc32/power4/multiarch/strnlen-ppc32.c
new file mode 100644
index 0000000..676d837
--- /dev/null
+++ b/sysdeps/powerpc/powerpc32/power4/multiarch/strnlen-ppc32.c
@@ -0,0 +1,26 @@
+/* Default strnlen implementation for PowerPC32.
+ 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 STRNLEN __strnlen_ppc
+#ifdef SHARED
+# undef libc_hidden_def
+# define libc_hidden_def(name) \
+ __hidden_ver1 (__strnlen_ppc, __GI_strnlen, __strnlen_ppc);
+#endif
+
+#include <string/strnlen.c>
diff --git a/sysdeps/powerpc/powerpc64/multiarch/Makefile b/sysdeps/powerpc/powerpc64/multiarch/Makefile
index 9da7be1..3285fd7 100644
--- a/sysdeps/powerpc/powerpc64/multiarch/Makefile
+++ b/sysdeps/powerpc/powerpc64/multiarch/Makefile
@@ -5,5 +5,6 @@ sysdep_routines += memcpy-power7 memcpy-a2 memcpy-power6 memcpy-cell \
memset-ppc64 bzero-power4 bzero-power6 bzero-power7 \
mempcpy-power7 mempcpy-ppc64 memchr-power7 memchr-ppc64 \
memrchr-power7 memrchr-ppc64 rawmemchr-power7 \
- rawmemchr-ppc64 strlen-power7 strlen-ppc64
+ rawmemchr-ppc64 strlen-power7 strlen-ppc64 strnlen-power7 \
+ strnlen-ppc64
endif
diff --git a/sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c b/sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c
index bdc908b..c9125b8 100644
--- a/sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c
+++ b/sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c
@@ -129,5 +129,12 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
IFUNC_IMPL_ADD (array, i, rawmemchr, 1,
__rawmemchr_ppc))
+ /* Support sysdeps/powerpc/powerpc64/multiarch/strnlen.c. */
+ IFUNC_IMPL (i, name, strnlen,
+ IFUNC_IMPL_ADD (array, i, strnlen, hwcap & PPC_FEATURE_HAS_VSX,
+ __strnlen_power7)
+ IFUNC_IMPL_ADD (array, i, strnlen, 1,
+ __strnlen_ppc))
+
return i;
}
diff --git a/sysdeps/powerpc/powerpc64/multiarch/strnlen-power7.S b/sysdeps/powerpc/powerpc64/multiarch/strnlen-power7.S
new file mode 100644
index 0000000..909aae8
--- /dev/null
+++ b/sysdeps/powerpc/powerpc64/multiarch/strnlen-power7.S
@@ -0,0 +1,40 @@
+/* Optimized strnlen version 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(__strnlen_power7) \
+ .align ALIGNARG(2); \
+ BODY_LABEL(__strnlen_power7): \
+ cfi_startproc;
+
+#undef END
+#define END(name) \
+ cfi_endproc; \
+ TRACEBACK(__strnlen_power7) \
+ END_2(__strnlen_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/strnlen.S>
diff --git a/sysdeps/powerpc/powerpc64/multiarch/strnlen-ppc64.c b/sysdeps/powerpc/powerpc64/multiarch/strnlen-ppc64.c
new file mode 100644
index 0000000..9d23994
--- /dev/null
+++ b/sysdeps/powerpc/powerpc64/multiarch/strnlen-ppc64.c
@@ -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/powerpc32/power4/multiarch/strnlen-ppc32.c>
diff --git a/sysdeps/powerpc/powerpc64/multiarch/strnlen.c b/sysdeps/powerpc/powerpc64/multiarch/strnlen.c
new file mode 100644
index 0000000..3926031
--- /dev/null
+++ b/sysdeps/powerpc/powerpc64/multiarch/strnlen.c
@@ -0,0 +1,36 @@
+/* Multiple versions of strnlen.
+ 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 (__strnlen) __strnlen_ppc attribute_hidden;
+extern __typeof (__strnlen) __strnlen_power7 attribute_hidden;
+
+libc_ifunc (__strnlen,
+ (hwcap & PPC_FEATURE_HAS_VSX)
+ ? __strnlen_power7
+ : __strnlen_ppc);
+weak_alias (__strnlen, strnlen)
+libc_hidden_def (strnlen)
+
+#else
+#include <string/strnlen.c>
+#endif
--
1.8.3.1