base/SOURCES/glibc-rh1240351-5.patch

    Backport of the following commit:
    
    commit 96d6fd6c4060d739abb1822e7ad633af749532b2
    Author: Adhemerval Zanella <azanella@linux.vnet.ibm.com>
    Date:   Tue Dec 23 05:59:44 2014 -0600
    
        powerpc: Optimized st{r,p}cpy for POWER8/PPC64
    
        This patch adds an optimized POWER8 strcpy using unaligned accesses.
        For strings up to 16 bytes the implementation first calculate the
        string size, like strlen, and issues a memcpy.  For larger strings,
        source is first aligned to 16 bytes and then tested over a loop that
        reads 16 bytes am combine the cmpb results for speedup.  Special case is
        added for page cross reads.
    
        It shows 30%-60% improvement over the optimized POWER7 one that uses
        only aligned accesses.
    
        ChangeLog:
    	2015-01-13  Adhemerval Zanella  <azanella@linux.vnet.ibm.com>
    
    	* sysdeps/powerpc/powerpc64/multiarch/Makefile [sysdep_routines]: Add
    	strcpy-power8 and stpcpy-power8 objects.
    	* sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c
    	(__libc_ifunc_impl_list): Add __strcpy_power8 and __stpcpy_power8
    	implementations.
    	* sysdeps/powerpc/powerpc64/multiarch/stpcpy-power8.S: New file:
    	multiarch stpcpy implementation for POWER8.
    	* sysdeps/powerpc/powerpc64/multiarch/strcpy-power8.S: New file;
    	multiarch strcpy implementation for POWER8.
    	* sysdeps/powerpc/powerpc64/multiarch/strcpy.c (strcpy): Add
    	__strcpy_power8 function.
    	* sysdeps/powerpc/powerpc64/power8/stpcpy.S: New file: optimized
    	stpcpy for POWER8.
    	* sysdeps/powerpc/powerpc64/power8/strcpy.S: New file: optimized
    	strcpy for POWER8.
    	* NEWS: Update.
    
    and the commits it depends on:
    
    commit a52374e82b90a6039c720f7b9b7dfa9db24ff4f0
    Author: Adhemerval Zanella <azanella@linux.vnet.ibm.com>
    Date:   Fri Dec 13 14:55:22 2013 -0500
    
        PowerPC: multiarch stpcpy for PowerPC64
    
        ChangeLog:
           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.
    
    commit 7f5ec11336e46d0449a6b5a8e5a0604c3c78ecbf
    Author: Adhemerval Zanella <azanella@linux.vnet.ibm.com>
    Date:   Fri Dec 13 14:54:41 2013 -0500
    
        PowerPC: multiarch strcpy for PowerPC64
    
        ChangeLog:
            2013-12-13  Adhemerval Zanella  <azanella@linux.vnet.ibm.com>
    
           * sysdeps/powerpc/powerpc64/multiarch/Makefile: Add strcpy
           multiarch implementations.
           * sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c
           (__libc_ifunc_impl_list): Likewise.
           * sysdeps/powerpc/powerpc64/multiarch/strcpy-power7.c: New file.
           * sysdeps/powerpc/powerpc64/multiarch/strcpy-ppc64.c: New file.
           * sysdeps/powerpc/powerpc64/multiarch/strcpy.c : New file:
           multiarch strcpy for PPC64.

diff --git a/sysdeps/powerpc/powerpc64/multiarch/Makefile b/sysdeps/powerpc/powerpc64/multiarch/Makefile
index 8dceb09..1cdd5d6 100644
--- a/sysdeps/powerpc/powerpc64/multiarch/Makefile
+++ b/sysdeps/powerpc/powerpc64/multiarch/Makefile
@@ -5,6 +5,8 @@ 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 \
+                  stpcpy-power8 stpcpy-power7 stpcpy-ppc64 \
+                  strcpy-power8 strcpy-power7 strcpy-ppc64 \
                   rawmemchr-ppc64 strlen-power7 strlen-ppc64 strnlen-power7 \
                   strnlen-ppc64 strcasecmp-power7 strcasecmp_l-power7 \
                   strncase-power7 strncase_l-power7 strncmp-power7 \
diff --git a/sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c b/sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c
index 2d21ce1..e89fd3e 100644
--- a/sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c
+++ b/sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c
@@ -34,6 +34,8 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
   size_t i = 0;
 
   unsigned long int hwcap = GLRO(dl_hwcap);
+  unsigned long int hwcap2 = GLRO(dl_hwcap2);
+
   /* hwcap contains only the latest supported ISA, the code checks which is
      and fills the previous supported ones.  */
   if (hwcap & PPC_FEATURE_ARCH_2_06)
@@ -71,6 +73,24 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
                              __memset_power4)
              IFUNC_IMPL_ADD (array, i, memset, 1, __memset_ppc))
 
+  /* Support sysdeps/powerpc/powerpc64/multiarch/strcpy.c.  */
+  IFUNC_IMPL (i, name, strcpy,
+              IFUNC_IMPL_ADD (array, i, strcpy, hwcap2 & PPC_FEATURE2_ARCH_2_07,
+                              __strcpy_power8)
+              IFUNC_IMPL_ADD (array, i, strcpy, hwcap & PPC_FEATURE_HAS_VSX,
+                              __strcpy_power7)
+              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, hwcap2 & PPC_FEATURE2_ARCH_2_07,
+                              __stpcpy_power8)
+              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,
diff --git a/sysdeps/powerpc/powerpc64/multiarch/stpcpy-power7.S b/sysdeps/powerpc/powerpc64/multiarch/stpcpy-power7.S
new file mode 100644
index 0000000..0943611
--- /dev/null
+++ b/sysdeps/powerpc/powerpc64/multiarch/stpcpy-power7.S
@@ -0,0 +1,40 @@
+/* Optimized stpcpy implementation for POWER7.
+   Copyright (C) 2013-2015 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>
diff --git a/sysdeps/powerpc/powerpc64/multiarch/stpcpy-power8.S b/sysdeps/powerpc/powerpc64/multiarch/stpcpy-power8.S
new file mode 100644
index 0000000..66e6f70
--- /dev/null
+++ b/sysdeps/powerpc/powerpc64/multiarch/stpcpy-power8.S
@@ -0,0 +1,40 @@
+/* Optimized stpcpy implementation for POWER8/PPC64.
+   Copyright (C) 2015 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_power8)					\
+  .align ALIGNARG(alignt);					\
+  EALIGN_W_##words;						\
+  BODY_LABEL(__stpcpy_power8):					\
+  cfi_startproc;						\
+  LOCALENTRY(__stpcpy_power8)
+
+#undef END
+#define END(name)						\
+  cfi_endproc;							\
+  TRACEBACK(__stpcpy_power8)					\
+  END_2(__stpcpy_power8)
+
+#undef libc_hidden_builtin_def
+#define libc_hidden_builtin_def(name)
+
+#include <sysdeps/powerpc/powerpc64/power8/stpcpy.S>
diff --git a/sysdeps/powerpc/powerpc64/multiarch/stpcpy-ppc64.S b/sysdeps/powerpc/powerpc64/multiarch/stpcpy-ppc64.S
new file mode 100644
index 0000000..ac70c1b
--- /dev/null
+++ b/sysdeps/powerpc/powerpc64/multiarch/stpcpy-ppc64.S
@@ -0,0 +1,48 @@
+/* Default stpcpy implementation for PowerPC64.
+   Copyright (C) 2013-2015 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>
diff --git a/sysdeps/powerpc/powerpc64/multiarch/stpcpy.c b/sysdeps/powerpc/powerpc64/multiarch/stpcpy.c
new file mode 100644
index 0000000..2ab62bf
--- /dev/null
+++ b/sysdeps/powerpc/powerpc64/multiarch/stpcpy.c
@@ -0,0 +1,35 @@
+/* Multiple versions of stpcpy. PowerPC64 version.
+   Copyright (C) 2013-2015 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
+# define NO_MEMPCPY_STPCPY_REDIRECT
+# 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
diff --git a/sysdeps/powerpc/powerpc64/multiarch/strcpy-power7.S b/sysdeps/powerpc/powerpc64/multiarch/strcpy-power7.S
new file mode 100644
index 0000000..69851bb
--- /dev/null
+++ b/sysdeps/powerpc/powerpc64/multiarch/strcpy-power7.S
@@ -0,0 +1,40 @@
+/* Optimized strcpy implementation for POWER7.
+   Copyright (C) 2013-2015 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(__strcpy_power7)					\
+  .align ALIGNARG(alignt);					\
+  EALIGN_W_##words;						\
+  BODY_LABEL(__strcpy_power7):					\
+  cfi_startproc;						\
+  LOCALENTRY(__strcpy_power7)
+
+#undef END
+#define END(name)						\
+  cfi_endproc;							\
+  TRACEBACK(__strcpy_power7)					\
+  END_2(__strcpy_power7)
+
+#undef libc_hidden_builtin_def
+#define libc_hidden_builtin_def(name)
+
+#include <sysdeps/powerpc/powerpc64/power7/strcpy.S>
diff --git a/sysdeps/powerpc/powerpc64/multiarch/strcpy-power8.S b/sysdeps/powerpc/powerpc64/multiarch/strcpy-power8.S
new file mode 100644
index 0000000..64cbc16
--- /dev/null
+++ b/sysdeps/powerpc/powerpc64/multiarch/strcpy-power8.S
@@ -0,0 +1,40 @@
+/* Optimized strcpy implementation for POWER8/PPC64.
+   Copyright (C) 2015 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(__strcpy_power8)					\
+  .align ALIGNARG(alignt);					\
+  EALIGN_W_##words;						\
+  BODY_LABEL(__strcpy_power8):					\
+  cfi_startproc;						\
+  LOCALENTRY(__strcpy_power8)
+
+#undef END
+#define END(name)						\
+  cfi_endproc;							\
+  TRACEBACK(__strcpy_power8)					\
+  END_2(__strcpy_power8)
+
+#undef libc_hidden_builtin_def
+#define libc_hidden_builtin_def(name)
+
+#include <sysdeps/powerpc/powerpc64/power8/strcpy.S>
diff --git a/sysdeps/powerpc/powerpc64/multiarch/strcpy-ppc64.S b/sysdeps/powerpc/powerpc64/multiarch/strcpy-ppc64.S
new file mode 100644
index 0000000..e5452b1
--- /dev/null
+++ b/sysdeps/powerpc/powerpc64/multiarch/strcpy-ppc64.S
@@ -0,0 +1,43 @@
+/* Default strcpy implementation for PowerPC64.
+   Copyright (C) 2013-2015 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(__strcpy_ppc)						\
+  .align ALIGNARG(alignt);					\
+  EALIGN_W_##words;						\
+  BODY_LABEL(__strcpy_ppc):					\
+  cfi_startproc;						\
+  LOCALENTRY(__strcpy_ppc)
+
+# undef END
+# define END(name)						\
+  cfi_endproc;							\
+  TRACEBACK(__strcpy_ppc)					\
+  END_2(__strcpy_ppc)
+
+# undef libc_hidden_builtin_def
+# define libc_hidden_builtin_def(name)				\
+    .globl __GI_strcpy; __GI_strcpy = __strcpy_ppc
+#endif
+
+#include <sysdeps/powerpc/powerpc64/strcpy.S>
diff --git a/sysdeps/powerpc/powerpc64/multiarch/strcpy.c b/sysdeps/powerpc/powerpc64/multiarch/strcpy.c
new file mode 100644
index 0000000..5a86f26
--- /dev/null
+++ b/sysdeps/powerpc/powerpc64/multiarch/strcpy.c
@@ -0,0 +1,34 @@
+/* Multiple versions of strcpy. PowerPC64 version.
+   Copyright (C) 2013-2015 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 (strcpy) __strcpy_ppc attribute_hidden;
+extern __typeof (strcpy) __strcpy_power7 attribute_hidden;
+extern __typeof (strcpy) __strcpy_power8 attribute_hidden;
+
+libc_ifunc (strcpy,
+            (hwcap2 & PPC_FEATURE2_ARCH_2_07)
+            ? __strcpy_power8 :
+              (hwcap & PPC_FEATURE_HAS_VSX)
+              ? __strcpy_power7
+            : __strcpy_ppc);
+#endif
diff --git a/sysdeps/powerpc/powerpc64/power8/stpcpy.S b/sysdeps/powerpc/powerpc64/power8/stpcpy.S
new file mode 100644
index 0000000..bf72065
--- /dev/null
+++ b/sysdeps/powerpc/powerpc64/power8/stpcpy.S
@@ -0,0 +1,24 @@
+/* Optimized stpcpy implementation for PowerPC64/POWER8.
+   Copyright (C) 2015 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 USE_AS_STPCPY
+#include <sysdeps/powerpc/powerpc64/power8/strcpy.S>
+
+weak_alias (__stpcpy, stpcpy)
+libc_hidden_def (__stpcpy)
+libc_hidden_builtin_def (stpcpy)
diff --git a/sysdeps/powerpc/powerpc64/power8/strcpy.S b/sysdeps/powerpc/powerpc64/power8/strcpy.S
new file mode 100644
index 0000000..d3e9a10
--- /dev/null
+++ b/sysdeps/powerpc/powerpc64/power8/strcpy.S
@@ -0,0 +1,262 @@
+/* Optimized strcpy/stpcpy implementation for PowerPC64/POWER8.
+   Copyright (C) 2015 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>
+
+#ifdef USE_AS_STPCPY
+# define FUNC_NAME __stpcpy
+#else
+# define FUNC_NAME strcpy
+#endif
+
+/* Implements the function
+
+   char * [r3] strcpy (char *dest [r3], const char *src [r4])
+
+   or
+
+   char * [r3] stpcpy (char *dest [r3], const char *src [r4])
+
+   if USE_AS_STPCPY is defined.
+
+   The implementation uses unaligned doubleword access to avoid specialized
+   code paths depending of data alignment.  Although recent powerpc64 uses
+   64K as default, the page cross handling assumes minimum page size of
+   4k.  */
+
+	.machine  power7
+EALIGN (FUNC_NAME, 4, 0)
+        li      r0,0          /* Doubleword with null chars to use
+                                 with cmpb.  */
+
+	/* Check if the [src]+15 will cross a 4K page by checking if the bit
+	   indicating the page size changes.  Basically:
+
+	   uint64_t srcin = (uint64_t)src;
+	   uint64_t ob = srcin & 4096UL;
+	   uint64_t nb = (srcin+15UL) & 4096UL;
+	   if (ob ^ nb)
+	     goto pagecross;  */
+
+	addi	r9,r4,15
+	xor	r9,r9,r4
+	rlwinm.	r9,r9,0,19,19
+	bne	L(pagecross)
+
+	/* For short string (less than 16 bytes), just calculate its size as
+	   strlen and issues a memcpy if null is found.  */
+	mr	r7,r4
+        ld      r12,0(r7)     /* Load doubleword from memory.  */
+        cmpb    r10,r12,r0    /* Check for null bytes in DWORD1.  */
+        cmpdi   cr7,r10,0     /* If r10 == 0, no null's have been found.  */
+        bne     cr7,L(done)
+
+        ldu     r8,8(r7)
+        cmpb    r10,r8,r0
+        cmpdi   cr7,r10,0
+        bne     cr7,L(done)
+
+	b	L(loop_before)
+
+	.align	4
+L(pagecross):
+	clrrdi  r7,r4,3       /* Align the address to doubleword boundary.  */
+	rlwinm  r6,r4,3,26,28 /* Calculate padding.  */
+	li      r5,-1         /* MASK = 0xffffffffffffffff.  */
+        ld      r12,0(r7)     /* Load doubleword from memory.  */
+#ifdef __LITTLE_ENDIAN__
+        sld     r5,r5,r6
+#else
+        srd     r5,r5,r6      /* MASK = MASK >> padding.  */
+#endif
+        orc     r9,r12,r5     /* Mask bits that are not part of the string.  */
+        cmpb    r10,r9,r0     /* Check for null bytes in DWORD1.  */
+        cmpdi   cr7,r10,0     /* If r10 == 0, no null's have been found.  */
+        bne     cr7,L(done)
+
+        ldu     r6,8(r7)
+        cmpb    r10,r6,r0
+        cmpdi   cr7,r10,0
+        bne     cr7,L(done)
+
+        ld      r12,0(r7)
+        cmpb    r10,r12,r0
+        cmpdi   cr7,r10,0
+        bne     cr7,L(done)
+
+        ldu     r6,8(r7)
+        cmpb    r10,r6,r0
+        cmpdi   cr7,r10,0
+        bne     cr7,L(done)
+
+	/* We checked for 24 - x bytes, with x being the source alignment
+	   (0 <= x <= 16), and no zero has been found.  Start the loop
+	   copy with doubleword aligned address.  */
+	mr	r7,r4
+	ld	r12, 0(r7)
+	ldu	r8, 8(r7)
+
+L(loop_before):
+	/* Save the two doublewords readed from source and align the source
+	   to 16 bytes for the loop.  */
+	mr	r11,r3
+	std	r12,0(r11)
+	std	r8,8(r11)
+	addi	r11,r11,16
+	rldicl	r9,r4,0,60
+	subf	r7,r9,r7
+	subf	r11,r9,r11
+	b	L(loop_start)
+
+        .align  5
+L(loop):
+        std     r12, 0(r11)
+        std     r6, 8(r11)
+	addi	r11,r11,16
+L(loop_start):
+        /* Load two doublewords, compare and merge in a
+           single register for speed.  This is an attempt
+           to speed up the null-checking process for bigger strings.  */
+
+        ld      r12, 8(r7)
+        ldu     r6, 16(r7)
+        cmpb    r10,r12,r0
+        cmpb    r9,r6,r0
+        or      r8,r9,r10     /* Merge everything in one doubleword.  */
+        cmpdi   cr7,r8,0
+        beq     cr7,L(loop)
+
+
+        /* OK, one (or both) of the doublewords contains a null byte.  Check
+           the first doubleword and decrement the address in case the first
+           doubleword really contains a null byte.  */
+
+	addi	r4,r7,-8
+        cmpdi   cr6,r10,0
+        addi    r7,r7,-8
+        bne     cr6,L(done2)
+
+        /* The null byte must be in the second doubleword.  Adjust the address
+           again and move the result of cmpb to r10 so we can calculate the
+           length.  */
+
+        mr      r10,r9
+        addi    r7,r7,8
+	b	L(done2)
+
+        /* r10 has the output of the cmpb instruction, that is, it contains
+           0xff in the same position as the null byte in the original
+           doubleword from the string.  Use that to calculate the length.  */
+L(done):
+	mr	r11,r3
+L(done2):
+#ifdef __LITTLE_ENDIAN__
+        addi    r9, r10, -1   /* Form a mask from trailing zeros.  */
+        andc    r9, r9, r10
+        popcntd r6, r9        /* Count the bits in the mask.  */
+#else
+        cntlzd  r6,r10        /* Count leading zeros before the match.  */
+#endif
+        subf    r5,r4,r7
+        srdi    r6,r6,3       /* Convert leading/trailing zeros to bytes.  */
+        add     r8,r5,r6      /* Compute final length.  */
+#ifdef USE_AS_STPCPY
+	/* stpcpy returns the dest address plus the size not counting the
+	   final '\0'.  */
+	add	r3,r11,r8
+#endif
+	addi	r8,r8,1       /* Final '/0'.  */
+
+	cmpldi	cr6,r8,8
+	mtocrf	0x01,r8
+	ble	cr6,L(copy_LE_8)
+
+	cmpldi	cr1,r8,16
+	blt	cr1,8f
+
+	/* Handle copies of 0~31 bytes.  */
+	.align	4
+L(copy_LT_32):
+	/* At least 6 bytes to go.  */
+	blt	cr1,8f
+
+	/* Copy 16 bytes.  */
+	ld	r6,0(r4)
+	ld	r8,8(r4)
+	addi	r4,r4,16
+	std	r6,0(r11)
+	std	r8,8(r11)
+	addi	r11,r11,16
+8:	/* Copy 8 bytes.  */
+	bf	28,L(tail4)
+	ld	r6,0(r4)
+	addi	r4,r4,8
+	std	r6,0(r11)
+	addi	r11,r11,8
+
+	.align	4
+/* Copies 4~7 bytes.  */
+L(tail4):
+	bf	29,L(tail2)
+	lwz	r6,0(r4)
+	stw	r6,0(r11)
+	bf	30,L(tail5)
+	lhz	r7,4(r4)
+	sth	r7,4(r11)
+	bflr	31
+	lbz	r8,6(r4)
+	stb	r8,6(r11)
+	blr
+
+	.align	4
+/* Copies 2~3 bytes.  */
+L(tail2):
+	bf	30,1f
+	lhz	r6,0(r4)
+	sth	r6,0(r11)
+	bflr	31
+	lbz	r7,2(r4)
+	stb	r7,2(r11)
+	blr
+
+	.align	4
+L(tail5):
+	bf	31,1f
+	lbz	r6,4(r4)
+	stb	r6,4(r11)
+	blr
+
+	.align	4
+1:
+	bflr	31
+	lbz	r6,0(r4)
+	stb	r6,0(r11)
+	blr
+
+/* Handles copies of 0~8 bytes.  */
+	.align	4
+L(copy_LE_8):
+	bne	cr6,L(tail4)
+	ld	r6,0(r4)
+	std	r6,0(r11)
+	blr
+END (FUNC_NAME)
+
+#ifndef USE_AS_STPCPY
+libc_hidden_builtin_def (strcpy)
+#endif