PowerPC: multiarch wcsrchr for PowerPC32

ChangeLog

@@ -1,3 +1,23 @@
+2013-12-06  Adhemerval Zanella  <azanella@linux.vnet.ibm.com>
+
+	* wcsmbs/wcsrchr.c (wcsrchr): Using macro to redefine symbol name
+	* sysdeps/powerpc/powerpc32/power4/multiarch/wcsrchr-power6.c: New
+	file.
+	* sysdeps/powerpc/powerpc32/power4/multiarch/wcsrchr-power7.c: New
+	file.
+	* sysdeps/powerpc/powerpc32/power4/multiarch/wcsrchr-ppc32.c: New
+	file.
+	* sysdeps/powerpc/powerpc32/power4/multiarch/wcsrchr.c: New file:
+	multiarch wcsrchr for PPC32.
+	* sysdeps/powerpc/powerpc32/power4/multiarch/Makefile: Added wcschr
+	multiarch objects.
+	* sysdeps/powerpc/powerpc32/power4/multiarch/ifunc-impl-list
+	(__libc_ifunc_impl_list): Likewise.
+	* sysdeps/powerpc/powerpc32/power6/wcsrchr.c: Move ...
+	* sysdeps/powerpc/power6/wcsrchr.c: ... to here.
+	* sysdeps/powerpc/powerpc64/power6/wcsrchr.c: Adjust to use
+	sysdeps/powerpc/power6/wcsrchr.c.
+
 2013-12-06  Adhemerval Zanella  <azanella@linux.vnet.ibm.com>
 
 	* sysdeps/powerpc/powerpc32/power4/multiarch/wcschr-power6.c: New

sysdeps/powerpc/power6/wcsrchr.c

@@ -1,4 +1,4 @@
-/* wcsrchr.c - Wide Character Reverse Search for powerpc32/power6.
+/* wcsrchr.c - Wide Character Reverse Search for POWER6+.
    Copyright (C) 2012-2013 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
@@ -18,12 +18,13 @@
 
 #include <wchar.h>
 
+#ifndef WCSRCHR
+# define WCSRCHR wcsrchr
+#endif
 
 /* Find the last occurrence of WC in WCS.  */
 wchar_t *
-wcsrchr (wcs, wc)
+WCSRCHR (const wchar_t *wcs, const wchar_t wc)
-     const wchar_t *wcs;
-     const wchar_t wc;
 {
   const wchar_t *wcs2 = wcs + 1;
   const wchar_t *retval = NULL;

sysdeps/powerpc/powerpc32/power4/multiarch/Makefile

@@ -9,10 +9,12 @@ sysdep_routines += memcpy-power7 memcpy-a2 memcpy-power6 memcpy-cell \
 		   strcasecmp-power7 strcasecmp_l-power7 strncase-power7 \
 		   strncase_l-power7 strchrnul-power7 strchrnul-ppc32 \
 		   strchr-power7 strchr-ppc32 wcschr-power7 wcschr-power6 \
-		   wcschr-ppc32
+		   wcschr-ppc32 wcsrchr-power7 wcsrchr-power6 wcsrchr-ppc32
 
 CFLAGS-strncase-power7.c += -mcpu=power7 -funroll-loops
 CFLAGS-strncase_l-power7.c += -mcpu=power7 -funroll-loops
 CFLAGS-wcschr-power7.c += -mcpu=power7
 CFLAGS-wcschr-power6.c += -mcpu=power6
+CFLAGS-wcsrchr-power7.c += -mcpu=power7
+CFLAGS-wcsrchr-power6.c += -mcpu=power6
 endif

sysdeps/powerpc/powerpc32/power4/multiarch/ifunc-impl-list.c

@@ -192,5 +192,16 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
 	      IFUNC_IMPL_ADD (array, i, wcschr, 1,
 			      __wcschr_ppc))
 
+  /* Support sysdeps/powerpc/powerpc32/power4/multiarch/wcsrchr.c.  */
+  IFUNC_IMPL (i, name, wcsrchr,
+	      IFUNC_IMPL_ADD (array, i, wcsrchr,
+			      hwcap & PPC_FEATURE_HAS_VSX,
+			      __wcsrchr_power7)
+	      IFUNC_IMPL_ADD (array, i, wcsrchr,
+			      hwcap & PPC_FEATURE_ARCH_2_05,
+			      __wcsrchr_power6)
+	      IFUNC_IMPL_ADD (array, i, wcsrchr, 1,
+			      __wcsrchr_ppc))
+
   return i;
 }

sysdeps/powerpc/powerpc32/power4/multiarch/wcsrchr-power6.c

@@ -0,0 +1,20 @@
+/* Copyright (C) 2013 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 WCSRCHR      __wcsrchr_power6
+
+#include <sysdeps/powerpc/power6/wcsrchr.c>

sysdeps/powerpc/powerpc32/power4/multiarch/wcsrchr-power7.c

@@ -0,0 +1,20 @@
+/* Copyright (C) 2013 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 WCSRCHR      __wcsrchr_power7
+
+#include <sysdeps/powerpc/power6/wcsrchr.c>

sysdeps/powerpc/powerpc32/power4/multiarch/wcsrchr-ppc32.c

@@ -0,0 +1,26 @@
+/* Copyright (C) 2013 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 <wchar.h>
+
+#ifndef NOT_IN_libc
+# define WCSRCHR  __wcsrchr_ppc
+#endif
+
+extern __typeof (wcsrchr) __wcsrchr_ppc;
+
+#include <wcsmbs/wcsrchr.c>

sysdeps/powerpc/powerpc32/power4/multiarch/wcsrchr.c

@@ -0,0 +1,36 @@
+/* Multiple versions of wcsrchr
+   Copyright (C) 2013 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 <wchar.h>
+# include <shlib-compat.h>
+# include "init-arch.h"
+
+extern __typeof (wcsrchr) __wcsrchr_ppc attribute_hidden;
+extern __typeof (wcsrchr) __wcsrchr_power6 attribute_hidden;
+extern __typeof (wcsrchr) __wcsrchr_power7 attribute_hidden;
+
+libc_ifunc (wcsrchr,
+	     (hwcap & PPC_FEATURE_HAS_VSX)
+             ? __wcsrchr_power7 :
+	       (hwcap & PPC_FEATURE_ARCH_2_05)
+	       ? __wcsrchr_power6
+             : __wcsrchr_ppc);
+#else
+#include <wcsmbs/wcsrchr.c>
+#endif

sysdeps/powerpc/powerpc64/power6/wcsrchr.c

@@ -1 +1 @@
-#include "../../powerpc32/power6/wcsrchr.c"
+#include <sysdeps/powerpc/power6/wcsrchr.c>

wcsmbs/wcsrchr.c

@@ -18,10 +18,13 @@
 
 #include <wchar.h>
 
+#ifndef WCSRCHR
+# define WCSRCHR wcsrchr
+#endif
 
 /* Find the last occurrence of WC in WCS.  */
 wchar_t *
-wcsrchr (wcs, wc)
+WCSRCHR (wcs, wc)
      const wchar_t *wcs;
      const wchar_t wc;
 {