PowerPC: multiarch rawmemchr for PowerPC32

5 files changed, 119 insertions, 1 deletions

diff --git a/sysdeps/powerpc/powerpc32/power4/multiarch/Makefile b/sysdeps/powerpc/powerpc32/power4/multiarch/Makefile
index 8a17639ae2..23b653f671 100644
--- a/sysdeps/powerpc/powerpc32/power4/multiarch/Makefile
+++ b/sysdeps/powerpc/powerpc32/power4/multiarch/Makefile
@@ -3,5 +3,6 @@ sysdep_routines += memcpy-power7 memcpy-a2 memcpy-power6 memcpy-cell \
 		   memcpy-ppc32 memcmp-power7 memcmp-ppc32 memset-power7 \
 		   memset-power6 memset-ppc32 bzero-power7 bzero-power6 \
 		   bzero-ppc32 mempcpy-power7 mempcpy-ppc32 memchr-power7 \
-		   memchr-ppc32 memrchr-power7 memrchr-ppc32
+		   memchr-ppc32 memrchr-power7 memrchr-ppc32 rawmemchr-power7 \
+		   rawmemchr-ppc32
 endif
diff --git a/sysdeps/powerpc/powerpc32/power4/multiarch/ifunc-impl-list.c b/sysdeps/powerpc/powerpc32/power4/multiarch/ifunc-impl-list.c
index 13a028e343..95da674390 100644
--- a/sysdeps/powerpc/powerpc32/power4/multiarch/ifunc-impl-list.c
+++ b/sysdeps/powerpc/powerpc32/power4/multiarch/ifunc-impl-list.c
@@ -107,5 +107,13 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
 	      IFUNC_IMPL_ADD (array, i, memrchr, 1,
 			      __memrchr_ppc))
 
+  /* Support sysdeps/powerpc/powerpc32/power4/multiarch/rawmemchr.c.  */
+  IFUNC_IMPL (i, name, rawmemchr,
+	      IFUNC_IMPL_ADD (array, i, rawmemchr,
+			      hwcap & PPC_FEATURE_HAS_VSX,
+			      __rawmemchr_power7)
+	      IFUNC_IMPL_ADD (array, i, rawmemchr, 1,
+			      __rawmemchr_ppc))
+
   return i;
 }
diff --git a/sysdeps/powerpc/powerpc32/power4/multiarch/rawmemchr-power7.S b/sysdeps/powerpc/powerpc32/power4/multiarch/rawmemchr-power7.S
new file mode 100644
index 0000000000..ff9bb284f6
--- /dev/null
+++ b/sysdeps/powerpc/powerpc32/power4/multiarch/rawmemchr-power7.S
@@ -0,0 +1,40 @@
+/* Optimized rawrawmemchr implementation for PowerPC32/POWER7 using cmpb insn.
+   Copyright (C) 2010-2013 Free Software Foundation, Inc.
+   Contributed by Luis Machado <luisgpm@br.ibm.com>.
+   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 ENTRY
+#define ENTRY(name)						\
+ .globl C_SYMBOL_NAME(__rawmemchr_power7);			\
+ .type C_SYMBOL_NAME(__rawmemchr_power7),@function;		\
+ C_LABEL(__rawmemchr_power7)					\
+ cfi_startproc;
+
+#undef END
+#define END(name)						\
+ cfi_endproc;							\
+ ASM_SIZE_DIRECTIVE(__rawmemchr_power7)
+
+#undef weak_alias
+#define weak_alias(name, alias)
+
+#undef libc_hidden_builtin_def
+#define libc_hidden_builtin_def(name)
+
+#include <sysdeps/powerpc/powerpc32/power7/rawmemchr.S>
diff --git a/sysdeps/powerpc/powerpc32/power4/multiarch/rawmemchr-ppc32.c b/sysdeps/powerpc/powerpc32/power4/multiarch/rawmemchr-ppc32.c
new file mode 100644
index 0000000000..0eef47696d
--- /dev/null
+++ b/sysdeps/powerpc/powerpc32/power4/multiarch/rawmemchr-ppc32.c
@@ -0,0 +1,32 @@
+/* PowerPC32 default implementation of rawmemchr.
+   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 RAWMEMCHR  __rawmemchr_ppc
+#undef weak_alias
+#define weak_alias(a, b)
+#ifdef SHARED
+# undef libc_hidden_def
+# define libc_hidden_def(name)  \
+  __hidden_ver1 (__rawmemchr_ppc, __GI___rawmemchr, __rawmemchr_ppc);
+#endif
+
+extern __typeof (rawmemchr) __rawmemchr_ppc attribute_hidden;
+
+#include <string/rawmemchr.c>
diff --git a/sysdeps/powerpc/powerpc32/power4/multiarch/rawmemchr.c b/sysdeps/powerpc/powerpc32/power4/multiarch/rawmemchr.c
new file mode 100644
index 0000000000..c083490f3f
--- /dev/null
+++ b/sysdeps/powerpc/powerpc32/power4/multiarch/rawmemchr.c
@@ -0,0 +1,37 @@
+/* Multiple versions of rawmemchr.
+   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>
+# include <shlib-compat.h>
+# include "init-arch.h"
+
+extern __typeof (__rawmemchr) __rawmemchr_ppc attribute_hidden;
+extern __typeof (__rawmemchr) __rawmemchr_power7 attribute_hidden;
+
+/* Avoid DWARF definition DIE on ifunc symbol so that GDB can handle
+   ifunc symbol properly.  */
+libc_ifunc (__rawmemchr,
+	    (hwcap & PPC_FEATURE_HAS_VSX)
+            ? __rawmemchr_power7
+            : __rawmemchr_ppc);
+
+weak_alias (__rawmemchr, rawmemchr)
+#else
+#include <string/rawmemchr.c>
+#endif