PowerPC: multiarch stpcpy for PowerPC64

ChangeLog

@@ -1,3 +1,14 @@
+2013-12-13  Adhemerval Zanella  <azanella@linux.vnet.ibm.com>
+
+	* sysdeps/powerpc/powerpc64/multiarch/Makefile: Add stpcpy
+	multiarch implementations.
+	* sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c
+	(__libc_ifunc_impl_list): Likewise.
+	* sysdeps/powerpc/powerpc64/multiarch/stpcpy-power7.c: New file.
+	* sysdeps/powerpc/powerpc64/multiarch/stpcpy-ppc64.c: New file.
+	* sysdeps/powerpc/powerpc64/multiarch/stpcpy.c : New file:
+	multiarch stpcpy for PPC64.
+
 2013-12-13  Adhemerval Zanella  <azanella@linux.vnet.ibm.com>
 
 	* sysdeps/powerpc/powerpc64/multiarch/Makefile: Add strcpy

sysdeps/powerpc/powerpc64/multiarch/Makefile

@@ -13,7 +13,7 @@ sysdep_routines += memcpy-power7 memcpy-a2 memcpy-power6 memcpy-cell \
 		   wcschr-power6 wcschr-ppc64 wcsrchr-power7 wcsrchr-power6 \
 		   wcsrchr-ppc64 wcscpy-power7 wcscpy-power6 wcscpy-ppc64 \
 		   wordcopy-power7 wordcopy-power6 wordcopy-ppc64 \
-		   strcpy-power7 strcpy-ppc64
+		   strcpy-power7 strcpy-ppc64 stpcpy-power7 stpcpy-ppc64
 
 CFLAGS-strncase-power7.c += -mcpu=power7 -funroll-loops
 CFLAGS-strncase_l-power7.c += -mcpu=power7 -funroll-loops

sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c

@@ -78,6 +78,13 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
 	      IFUNC_IMPL_ADD (array, i, strcpy, 1,
 			      __strcpy_ppc))
 
+  /* Support sysdeps/powerpc/powerpc64/multiarch/stpcpy.c.  */
+  IFUNC_IMPL (i, name, stpcpy,
+	      IFUNC_IMPL_ADD (array, i, stpcpy, hwcap & PPC_FEATURE_HAS_VSX,
+			      __stpcpy_power7)
+	      IFUNC_IMPL_ADD (array, i, stpcpy, 1,
+			      __stpcpy_ppc))
+
   /* Support sysdeps/powerpc/powerpc64/multiarch/strlen.c.  */
   IFUNC_IMPL (i, name, strlen,
 	      IFUNC_IMPL_ADD (array, i, strlen, hwcap & PPC_FEATURE_HAS_VSX,

sysdeps/powerpc/powerpc64/multiarch/stpcpy-power7.S

@@ -0,0 +1,40 @@
+/* Optimized stpcpy implementation for POWER7.
+   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 <sysdep.h>
+
+#undef EALIGN
+#define EALIGN(name, alignt, words)				\
+  .section ".text";						\
+  ENTRY_2(__stpcpy_power7)					\
+  .align ALIGNARG(alignt);					\
+  EALIGN_W_##words;						\
+  BODY_LABEL(__stpcpy_power7):					\
+  cfi_startproc;						\
+  LOCALENTRY(__stpcpy_power7)
+
+#undef END
+#define END(name)						\
+  cfi_endproc;							\
+  TRACEBACK(__stpcpy_power7)					\
+  END_2(__stpcpy_power7)
+
+#undef libc_hidden_builtin_def
+#define libc_hidden_builtin_def(name)
+
+#include <sysdeps/powerpc/powerpc64/power7/stpcpy.S>

sysdeps/powerpc/powerpc64/multiarch/stpcpy-ppc64.S

@@ -0,0 +1,48 @@
+/* Default stpcpy implementation for PowerPC64.
+   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 <sysdep.h>
+
+#if defined SHARED && !defined NOT_IN_libc
+# undef EALIGN
+# define EALIGN(name, alignt, words)				\
+  .section ".text";						\
+  ENTRY_2(__stpcpy_ppc)						\
+  .align ALIGNARG(alignt);					\
+  EALIGN_W_##words;						\
+  BODY_LABEL(__stpcpy_ppc):					\
+  cfi_startproc;						\
+  LOCALENTRY(__stpcpy_ppc)
+
+# undef END
+# define END(name)						\
+  cfi_endproc;							\
+  TRACEBACK(__stpcpy_ppc)					\
+  END_2(__stpcpy_ppc)
+
+# undef weak_alias
+# define weak_alias(name, alias)
+# undef libc_hidden_def
+# define libc_hidden_def(name)
+
+# undef libc_hidden_builtin_def
+# define libc_hidden_builtin_def(name)				\
+    .globl __GI___stpcpy; __GI___stpcpy = __stpcpy_ppc
+#endif
+
+#include <sysdeps/powerpc/powerpc64/stpcpy.S>

sysdeps/powerpc/powerpc64/multiarch/stpcpy.c

@@ -0,0 +1,34 @@
+/* Multiple versions of stpcpy. PowerPC64 version.
+   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/>.  */
+
+#if defined SHARED && !defined NOT_IN_libc
+# include <string.h>
+# include <shlib-compat.h>
+# include "init-arch.h"
+
+extern __typeof (__stpcpy) __stpcpy_ppc attribute_hidden;
+extern __typeof (__stpcpy) __stpcpy_power7 attribute_hidden;
+
+libc_ifunc (__stpcpy,
+            (hwcap & PPC_FEATURE_HAS_VSX)
+            ? __stpcpy_power7
+            : __stpcpy_ppc);
+
+weak_alias (__stpcpy, stpcpy)
+libc_hidden_def (stpcpy)
+#endif