[PATCH 12/21] PowerPC: multiarch strncasecmp for PowerPC64

[Adhemerval Zanella <azanella at linux dot vnet dot ibm dot com>]

2013-12-09  Adhemerval Zanella  <azanella@linux.vnet.ibm.com>

	* sysdeps/powerpc/powerpc64/multiarch/Makefile: Add strncasecmp
	multiarch implementations.
	* sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c
	(__libc_ifunc_impl_list): Likewise.
	* sysdeps/powerpc/powerpc64/multiarch/strncase-power7.c: New file.
	* sysdeps/powerpc/powerpc64/multiarch/strncase.c: New file: multiarch
	strncasecmp for PPC64.
	* sysdeps/powerpc/powerpc64/multiarch/strncase_l-power7.c: New file.
	* sysdeps/powerpc/powerpc64/multiarch/strncase_l.c: New file:
	multiarch strncasecmp_l for PPC64.

--

diff --git a/sysdeps/powerpc/powerpc64/multiarch/Makefile b/sysdeps/powerpc/powerpc64/multiarch/Makefile
index c741f0d..a41a823 100644
--- a/sysdeps/powerpc/powerpc64/multiarch/Makefile
+++ b/sysdeps/powerpc/powerpc64/multiarch/Makefile
@@ -6,5 +6,9 @@ sysdep_routines += memcpy-power7 memcpy-a2 memcpy-power6 memcpy-cell \
 		   mempcpy-power7 mempcpy-ppc64 memchr-power7 memchr-ppc64 \
 		   memrchr-power7 memrchr-ppc64 rawmemchr-power7 \
 		   rawmemchr-ppc64 strlen-power7 strlen-ppc64 strnlen-power7 \
-		   strnlen-ppc64 strcasecmp-power7 strcasecmp_l-power7
+		   strnlen-ppc64 strcasecmp-power7 strcasecmp_l-power7 \
+		   strncase-power7 strncase_l-power7
+
+CFLAGS-strncase-power7.c += -mcpu=power7 -funroll-loops
+CFLAGS-strncase_l-power7.c += -mcpu=power7 -funroll-loops
 endif
diff --git a/sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c b/sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c
index 7980351..08a8861 100644
--- a/sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c
+++ b/sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c
@@ -151,5 +151,20 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
 	      IFUNC_IMPL_ADD (array, i, strcasecmp_l, 1,
 			      __strcasecmp_l_ppc))
 
+  /* Support sysdeps/powerpc/powerpc64/multiarch/strncase.c.  */
+  IFUNC_IMPL (i, name, strncasecmp,
+	      IFUNC_IMPL_ADD (array, i, strncasecmp,
+			      hwcap & PPC_FEATURE_HAS_VSX,
+			      __strncasecmp_power7)
+	      IFUNC_IMPL_ADD (array, i, strncasecmp, 1, __strncasecmp_ppc))
+
+  /* Support sysdeps/powerpc/powerpc64/multiarch/strncase_l.c.  */
+  IFUNC_IMPL (i, name, strncasecmp_l,
+	      IFUNC_IMPL_ADD (array, i, strncasecmp_l,
+			      hwcap & PPC_FEATURE_HAS_VSX,
+			      __strncasecmp_l_power7)
+	      IFUNC_IMPL_ADD (array, i, strncasecmp_l, 1,
+			      __strncasecmp_l_ppc))
+
   return i;
 }
diff --git a/sysdeps/powerpc/powerpc64/multiarch/strncase-power7.c b/sysdeps/powerpc/powerpc64/multiarch/strncase-power7.c
new file mode 100644
index 0000000..de6ac40
--- /dev/null
+++ b/sysdeps/powerpc/powerpc64/multiarch/strncase-power7.c
@@ -0,0 +1,24 @@
+/* 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 <string.h>
+
+#define __strncasecmp __strncasecmp_power7
+
+extern __typeof (strncasecmp) __strncasecmp_power7 attribute_hidden;
+
+#include <string/strncase.c>
diff --git a/sysdeps/powerpc/powerpc64/multiarch/strncase.c b/sysdeps/powerpc/powerpc64/multiarch/strncase.c
new file mode 100644
index 0000000..7fea0e3
--- /dev/null
+++ b/sysdeps/powerpc/powerpc64/multiarch/strncase.c
@@ -0,0 +1,41 @@
+/* Multiple versions of strncasecmp
+   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 <string.h>
+# define strncasecmp __strncasecmp_ppc
+extern __typeof (__strncasecmp) __strncasecmp_ppc attribute_hidden;
+extern __typeof (__strncasecmp) __strncasecmp_power7 attribute_hidden;
+#endif
+
+#include <string/strncase.c>
+#undef strncasecmp
+
+#ifndef NOT_IN_libc
+# include <shlib-compat.h>
+# include "init-arch.h"
+
+/* Avoid DWARF definition DIE on ifunc symbol so that GDB can handle
+   ifunc symbol properly.  */
+extern __typeof (__strncasecmp) __libc_strncasecmp;
+libc_ifunc (__libc_strncasecmp,
+	     (hwcap & PPC_FEATURE_HAS_VSX)
+             ? __strncasecmp_power7
+             : __strncasecmp_ppc);
+weak_alias (__libc_strncasecmp, strncasecmp)
+#endif
diff --git a/sysdeps/powerpc/powerpc64/multiarch/strncase_l-power7.c b/sysdeps/powerpc/powerpc64/multiarch/strncase_l-power7.c
new file mode 100644
index 0000000..10a49fc
--- /dev/null
+++ b/sysdeps/powerpc/powerpc64/multiarch/strncase_l-power7.c
@@ -0,0 +1,25 @@
+/* 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 <string.h>
+
+#define __strncasecmp_l __strncasecmp_l_power7
+#define USE_IN_EXTENDED_LOCALE_MODEL    1
+
+extern __typeof (strncasecmp_l) __strncasecmp_l_power7 attribute_hidden;
+
+#include <string/strncase.c>
diff --git a/sysdeps/powerpc/powerpc64/multiarch/strncase_l.c b/sysdeps/powerpc/powerpc64/multiarch/strncase_l.c
new file mode 100644
index 0000000..4f3fb91
--- /dev/null
+++ b/sysdeps/powerpc/powerpc64/multiarch/strncase_l.c
@@ -0,0 +1,42 @@
+/* Multiple versions of strncasecmp_l
+   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 <string.h>
+# define strncasecmp_l __strncasecmp_l_ppc
+extern __typeof (__strncasecmp_l) __strncasecmp_l_ppc attribute_hidden;
+extern __typeof (__strncasecmp_l) __strncasecmp_l_power7 attribute_hidden;
+#endif
+
+#include <string/strncase_l.c>
+#undef strncasecmp_l
+
+#ifndef NOT_IN_libc
+# include <shlib-compat.h>
+# include "init-arch.h"
+
+/* Avoid DWARF definition DIE on ifunc symbol so that GDB can handle
+   ifunc symbol properly.  */
+extern __typeof (__strncasecmp_l) __libc_strncasecmp_l;
+libc_ifunc (__libc_strncasecmp_l,
+	     (hwcap & PPC_FEATURE_HAS_VSX)
+             ? __strncasecmp_l_power7
+             : __strncasecmp_l_ppc);
+
+weak_alias (__libc_strncasecmp_l, strncasecmp_l)
+#endif