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From 62edac04130e7d91b0d4872376bdaa976065fd25 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 07:40:10 -0500
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Subject: [PATCH] PowerPC: multiarch wcsrchr for PowerPC64
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commit 7b714620a7146104aaf863ba1dbe386beedbcc0a
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Author: Adhemerval Zanella <azanella@linux.vnet.ibm.com>
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Date:   Fri Dec 13 14:52:48 2013 -0500
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Added the following files apart from original commit.
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sysdeps/powerpc/powerpc32/power4/multiarch/wcsrchr-power6.c
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sysdeps/powerpc/powerpc32/power4/multiarch/wcsrchr-power7.c
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sysdeps/powerpc/powerpc32/power4/multiarch/wcsrchr-ppc32.c
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sysdeps/powerpc/powerpc64/power6/wcsrchr.c
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wcsmbs/wcsrchr.c
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---
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 sysdeps/powerpc/power6/wcsrchr.c                   | 89 ++++++++++++++++++++++
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 .../powerpc32/power4/multiarch/wcsrchr-power6.c    | 20 +++++
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 .../powerpc32/power4/multiarch/wcsrchr-power7.c    | 20 +++++
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 .../powerpc32/power4/multiarch/wcsrchr-ppc32.c     | 26 +++++++
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 sysdeps/powerpc/powerpc64/multiarch/Makefile       |  5 +-
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 .../powerpc/powerpc64/multiarch/ifunc-impl-list.c  | 11 +++
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 .../powerpc/powerpc64/multiarch/wcsrchr-power6.c   | 19 +++++
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 .../powerpc/powerpc64/multiarch/wcsrchr-power7.c   | 19 +++++
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 .../powerpc/powerpc64/multiarch/wcsrchr-ppc64.c    | 18 +++++
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 sysdeps/powerpc/powerpc64/multiarch/wcsrchr.c      | 36 +++++++++
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 sysdeps/powerpc/powerpc64/power6/wcsrchr.c         |  2 +-
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 wcsmbs/wcsrchr.c                                   |  5 +-
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 12 files changed, 267 insertions(+), 3 deletions(-)
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 create mode 100644 sysdeps/powerpc/power6/wcsrchr.c
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 create mode 100644 sysdeps/powerpc/powerpc32/power4/multiarch/wcsrchr-power6.c
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 create mode 100644 sysdeps/powerpc/powerpc32/power4/multiarch/wcsrchr-power7.c
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 create mode 100644 sysdeps/powerpc/powerpc32/power4/multiarch/wcsrchr-ppc32.c
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 create mode 100644 sysdeps/powerpc/powerpc64/multiarch/wcsrchr-power6.c
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 create mode 100644 sysdeps/powerpc/powerpc64/multiarch/wcsrchr-power7.c
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 create mode 100644 sysdeps/powerpc/powerpc64/multiarch/wcsrchr-ppc64.c
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 create mode 100644 sysdeps/powerpc/powerpc64/multiarch/wcsrchr.c
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diff --git glibc-2.17-c758a686/sysdeps/powerpc/power6/wcsrchr.c glibc-2.17-c758a686/sysdeps/powerpc/power6/wcsrchr.c
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new file mode 100644
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index 0000000..278d98d
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--- /dev/null
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+++ glibc-2.17-c758a686/sysdeps/powerpc/power6/wcsrchr.c
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@@ -0,0 +1,89 @@
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+/* wcsrchr.c - Wide Character Reverse Search for POWER6+.
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+   Copyright (C) 2012-2014 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; see the file COPYING.LIB.  If
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+   not, see <http://www.gnu.org/licenses/>.  */
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+
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+#include <wchar.h>
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+
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+#ifndef WCSRCHR
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+# define WCSRCHR wcsrchr
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+#endif
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+
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+/* Find the last occurrence of WC in WCS.  */
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+wchar_t *
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+WCSRCHR (const wchar_t *wcs, const wchar_t wc)
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+{
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+  const wchar_t *wcs2 = wcs + 1;
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+  const wchar_t *retval = NULL;
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+
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+  if (*wcs == wc)
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+    retval = wcs;
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+
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+  if (*wcs == L'\0') return (wchar_t *) retval;
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+
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+  do
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+    {
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+    wcs+=2;
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+
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+    if (*wcs2 == wc)
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+      retval = wcs2;
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+    if (*wcs2 == L'\0')
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+      return (wchar_t *) retval;
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+    wcs2+=2;
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+
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+    if (*wcs == wc)
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+      retval = wcs;
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+    if (*wcs == L'\0')
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+      return (wchar_t *) retval;
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+    wcs+=2;
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+
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+    if (*wcs2 == wc)
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+      retval = wcs2;
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+    if (*wcs2 == L'\0')
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+      return (wchar_t *) retval;
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+    wcs2+=2;
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+
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+    if (*wcs == wc)
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+      retval = wcs;
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+    if (*wcs == L'\0')
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+      return (wchar_t *) retval;
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+    wcs+=2;
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+
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+    if (*wcs2 == wc)
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+      retval = wcs2;
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+    if (*wcs2 == L'\0')
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+      return (wchar_t *) retval;
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+    wcs2+=2;
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+
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+    if (*wcs == wc)
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+      retval = wcs;
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+    if (*wcs == L'\0')
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+      return (wchar_t *) retval;
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+    wcs+=2;
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+
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+    if (*wcs2 == wc)
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+      retval = wcs2;
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+    if (*wcs2 == L'\0')
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+      return (wchar_t *) retval;
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+    wcs2+=2;
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+
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+    if (*wcs == wc)
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+      retval = wcs;
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+    }
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+  while (*wcs != L'\0');
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+
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+  return (wchar_t *) retval;
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+}
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diff --git glibc-2.17-c758a686/sysdeps/powerpc/powerpc32/power4/multiarch/wcsrchr-power6.c glibc-2.17-c758a686/sysdeps/powerpc/powerpc32/power4/multiarch/wcsrchr-power6.c
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new file mode 100644
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index 0000000..bd77eb3
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--- /dev/null
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+++ glibc-2.17-c758a686/sysdeps/powerpc/powerpc32/power4/multiarch/wcsrchr-power6.c
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@@ -0,0 +1,20 @@
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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 WCSRCHR      __wcsrchr_power6
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+
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+#include <sysdeps/powerpc/power6/wcsrchr.c>
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diff --git glibc-2.17-c758a686/sysdeps/powerpc/powerpc32/power4/multiarch/wcsrchr-power7.c glibc-2.17-c758a686/sysdeps/powerpc/powerpc32/power4/multiarch/wcsrchr-power7.c
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new file mode 100644
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index 0000000..829a434
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--- /dev/null
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+++ glibc-2.17-c758a686/sysdeps/powerpc/powerpc32/power4/multiarch/wcsrchr-power7.c
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@@ -0,0 +1,20 @@
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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 WCSRCHR      __wcsrchr_power7
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+
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+#include <sysdeps/powerpc/power6/wcsrchr.c>
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diff --git glibc-2.17-c758a686/sysdeps/powerpc/powerpc32/power4/multiarch/wcsrchr-ppc32.c glibc-2.17-c758a686/sysdeps/powerpc/powerpc32/power4/multiarch/wcsrchr-ppc32.c
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new file mode 100644
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index 0000000..9c7fe2d
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--- /dev/null
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+++ glibc-2.17-c758a686/sysdeps/powerpc/powerpc32/power4/multiarch/wcsrchr-ppc32.c
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@@ -0,0 +1,26 @@
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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 <wchar.h>
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+
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+#ifndef NOT_IN_libc
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+# define WCSRCHR  __wcsrchr_ppc
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+#endif
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+
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+extern __typeof (wcsrchr) __wcsrchr_ppc;
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+
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+#include <wcsmbs/wcsrchr.c>
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diff --git glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/multiarch/Makefile glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/multiarch/Makefile
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index ff3b8cf..b4504b7 100644
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--- glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/multiarch/Makefile
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+++ glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/multiarch/Makefile
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@@ -10,10 +10,13 @@ sysdep_routines += memcpy-power7 memcpy-a2 memcpy-power6 memcpy-cell \
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                   strncase-power7 strncase_l-power7 strncmp-power7 \
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                   strncmp-power4 strncmp-ppc64 strchr-power7 strchr-ppc64 \
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                   strchrnul-power7 strchrnul-ppc64 wcschr-power7 \
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-                  wcschr-power6 wcschr-ppc64
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+                  wcschr-power6 wcschr-ppc64 wcsrchr-power7 wcsrchr-power6 \
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+                  wcsrchr-ppc64
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 CFLAGS-strncase-power7.c += -mcpu=power7 -funroll-loops
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 CFLAGS-strncase_l-power7.c += -mcpu=power7 -funroll-loops
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 CFLAGS-wcschr-power7.c += -mcpu=power7
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 CFLAGS-wcschr-power6.c += -mcpu=power6
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+CFLAGS-wcsrchr-power7.c += -mcpu=power7
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+CFLAGS-wcsrchr-power6.c += -mcpu=power6
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 endif
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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
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index cc932c9..6c7422c 100644
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--- glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c
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+++ glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c
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@@ -202,5 +202,16 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
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              IFUNC_IMPL_ADD (array, i, wcschr, 1,
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                              __wcschr_ppc))
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+  /* Support sysdeps/powerpc/powerpc64/multiarch/wcschr.c.  */
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+  IFUNC_IMPL (i, name, wcsrchr,
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+             IFUNC_IMPL_ADD (array, i, wcsrchr,
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+                             hwcap & PPC_FEATURE_HAS_VSX,
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+                             __wcsrchr_power7)
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+             IFUNC_IMPL_ADD (array, i, wcsrchr,
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+                             hwcap & PPC_FEATURE_ARCH_2_05,
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+                             __wcsrchr_power6)
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+             IFUNC_IMPL_ADD (array, i, wcsrchr, 1,
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+                             __wcsrchr_ppc))
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+
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   return i;
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 }
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diff --git glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/multiarch/wcsrchr-power6.c glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/multiarch/wcsrchr-power6.c
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new file mode 100644
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index 0000000..da6f27b
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--- /dev/null
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+++ glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/multiarch/wcsrchr-power6.c
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@@ -0,0 +1,19 @@
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+/* wcsrchr.c - Wide Character Search for powerpc64/power6.
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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; see the file COPYING.LIB.  If
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+   not, see <http://www.gnu.org/licenses/>.  */
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+
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+#include <sysdeps/powerpc/powerpc32/power4/multiarch/wcsrchr-power6.c>
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diff --git glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/multiarch/wcsrchr-power7.c glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/multiarch/wcsrchr-power7.c
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new file mode 100644
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index 0000000..60f07a8
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--- /dev/null
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+++ glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/multiarch/wcsrchr-power7.c
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@@ -0,0 +1,19 @@
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+/* wcsrchr.c - Wide Character Search for powerpc64/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; see the file COPYING.LIB.  If
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+   not, see <http://www.gnu.org/licenses/>.  */
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+
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+#include <sysdeps/powerpc/powerpc32/power4/multiarch/wcsrchr-power7.c>
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diff --git glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/multiarch/wcsrchr-ppc64.c glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/multiarch/wcsrchr-ppc64.c
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new file mode 100644
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index 0000000..1fff510
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--- /dev/null
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+++ glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/multiarch/wcsrchr-ppc64.c
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@@ -0,0 +1,18 @@
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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/wcsrchr-ppc32.c>
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diff --git glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/multiarch/wcsrchr.c glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/multiarch/wcsrchr.c
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new file mode 100644
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index 0000000..3d0ab42
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--- /dev/null
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+++ glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/multiarch/wcsrchr.c
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@@ -0,0 +1,36 @@
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+/* Multiple versions of wcsrchr.
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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 <wchar.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 (wcsrchr) __wcsrchr_ppc attribute_hidden;
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+extern __typeof (wcsrchr) __wcsrchr_power6 attribute_hidden;
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+extern __typeof (wcsrchr) __wcsrchr_power7 attribute_hidden;
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+
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+libc_ifunc (wcsrchr,
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+	     (hwcap & PPC_FEATURE_HAS_VSX)
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+             ? __wcsrchr_power7 :
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+	       (hwcap & PPC_FEATURE_ARCH_2_05)
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+	       ? __wcsrchr_power6
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+             : __wcsrchr_ppc);
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+#else
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+#include <wcsmbs/wcsrchr.c>
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+#endif
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diff --git glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/power6/wcsrchr.c glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/power6/wcsrchr.c
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index 2327c05..b86472d 100644
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--- glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/power6/wcsrchr.c
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+++ glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/power6/wcsrchr.c
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@@ -1 +1 @@
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-#include "../../powerpc32/power6/wcsrchr.c"
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+#include <sysdeps/powerpc/power6/wcsrchr.c>
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diff --git glibc-2.17-c758a686/wcsmbs/wcsrchr.c glibc-2.17-c758a686/wcsmbs/wcsrchr.c
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index c1b5a59..27c94c5 100644
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--- glibc-2.17-c758a686/wcsmbs/wcsrchr.c
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+++ glibc-2.17-c758a686/wcsmbs/wcsrchr.c
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@@ -18,10 +18,13 @@
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 #include <wchar.h>
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+#ifndef WCSRCHR
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+# define WCSRCHR wcsrchr
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+#endif
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 /* Find the last occurrence of WC in WCS.  */
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 wchar_t *
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-wcsrchr (wcs, wc)
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+WCSRCHR (wcs, wc)
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      register const wchar_t *wcs;
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      register const wchar_t wc;
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 {
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-- 
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1.8.3.1
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