PowerPC: multiarch strnlen for PowerPC32

diff --git a/ChangeLog b/ChangeLog
index 2fa6807..0ea9f97 100644 (file)
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,17 @@
 2013-12-06  Adhemerval Zanella  <azanella@linux.vnet.ibm.com>
 
+       * sysdeps/powerpc/powerpc32/power4/multiarch/rtld-strnlen.c: New file.
+       * sysdeps/powerpc/powerpc32//power4/multiarch/strnlen-power7.S: New
+       file.
+       * sysdeps/powerpc/powerpc32/power4/multiarch/strnlen-ppc32.c: New file.
+       * sysdeps/powerpc/powerpc32/power4/multiarch/strnlen.c: New file.
+       * sysdeps/powerpc/powerpc32/power4/multiarch/Makefile: Added strnlen
+       multiarch objects.
+       * sysdeps/powerpc/powerpc32/power4/multiarch/ifunc-impl-list
+       (__libc_ifunc_impl_list): Likewise.
+
+2013-12-06  Adhemerval Zanella  <azanella@linux.vnet.ibm.com>
+
        * sysdeps/powerpc/powerpc32/power4/multiarch/strlen-power7.S: New
        file.
        * sysdeps/powerpc/powerpc32/power4/multiarch/strlen-ppc32.S: New

diff --git a/sysdeps/powerpc/powerpc32/power4/multiarch/Makefile b/sysdeps/powerpc/powerpc32/power4/multiarch/Makefile
index cddb9bf..b84f867 100644 (file)
--- a/sysdeps/powerpc/powerpc32/power4/multiarch/Makefile
+++ b/sysdeps/powerpc/powerpc32/power4/multiarch/Makefile
@@ -4,5 +4,6 @@ sysdep_routines += memcpy-power7 memcpy-a2 memcpy-power6 memcpy-cell \
                   memset-power6 memset-ppc32 bzero-power7 bzero-power6 \
                   bzero-ppc32 mempcpy-power7 mempcpy-ppc32 memchr-power7 \
                   memchr-ppc32 memrchr-power7 memrchr-ppc32 rawmemchr-power7 \
-                  rawmemchr-ppc32 strlen-power7 strlen-ppc32
+                  rawmemchr-ppc32 strlen-power7 strlen-ppc32 strnlen-power7 \
+                  strnlen-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 63dadad..b2c6691 100644 (file)
--- a/sysdeps/powerpc/powerpc32/power4/multiarch/ifunc-impl-list.c
+++ b/sysdeps/powerpc/powerpc32/power4/multiarch/ifunc-impl-list.c
@@ -81,6 +81,13 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
                              __strlen_power7)
              IFUNC_IMPL_ADD (array, i, strlen, 1,
                              __strlen_ppc))
+
+  /* Support sysdeps/powerpc/powerpc32/power4/multiarch/strnlen.c.  */
+  IFUNC_IMPL (i, name, strnlen,
+             IFUNC_IMPL_ADD (array, i, strnlen, hwcap & PPC_FEATURE_HAS_VSX,
+                             __strnlen_power7)
+             IFUNC_IMPL_ADD (array, i, strnlen, 1,
+                             __strnlen_ppc))
 #endif
 
   /* Support sysdeps/powerpc/powerpc32/power4/multiarch/memcmp.c.  */

diff --git a/sysdeps/powerpc/powerpc32/power4/multiarch/rtld-strnlen.c b/sysdeps/powerpc/powerpc32/power4/multiarch/rtld-strnlen.c
new file mode 100644 (file)
index 0000000..11a7203
--- /dev/null
+++ b/sysdeps/powerpc/powerpc32/power4/multiarch/rtld-strnlen.c
@@ -0,0 +1,18 @@
+/* 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/strnlen.c>

diff --git a/sysdeps/powerpc/powerpc32/power4/multiarch/strnlen-power7.S b/sysdeps/powerpc/powerpc32/power4/multiarch/strnlen-power7.S
new file mode 100644 (file)
index 0000000..7b09e7d
--- /dev/null
+++ b/sysdeps/powerpc/powerpc32/power4/multiarch/strnlen-power7.S
@@ -0,0 +1,37 @@
+/* Optimized strnlen 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(__strnlen_power7);                       \
+ .type C_SYMBOL_NAME(__strnlen_power7),@function;              \
+ C_LABEL(__strnlen_power7)                                     \
+ cfi_startproc;
+
+#undef END
+#define END(name)                                              \
+ cfi_endproc;                                                  \
+ ASM_SIZE_DIRECTIVE(__strnlen_power7)
+
+#undef libc_hidden_builtin_def
+#define libc_hidden_builtin_def(name)
+
+#include <sysdeps/powerpc/powerpc32/power7/strnlen.S>

diff --git a/sysdeps/powerpc/powerpc32/power4/multiarch/strnlen-ppc32.c b/sysdeps/powerpc/powerpc32/power4/multiarch/strnlen-ppc32.c
new file mode 100644 (file)
index 0000000..43d8276
--- /dev/null
+++ b/sysdeps/powerpc/powerpc32/power4/multiarch/strnlen-ppc32.c
@@ -0,0 +1,26 @@
+/* Default strnlen implementation for PowerPC32.
+   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 STRNLEN  __strnlen_ppc
+#ifdef SHARED
+# undef libc_hidden_def
+# define libc_hidden_def(name)  \
+    __hidden_ver1 (__strnlen_ppc, __GI_strnlen, __strnlen_ppc);
+#endif
+
+#include <string/strnlen.c>

diff --git a/sysdeps/powerpc/powerpc32/power4/multiarch/strnlen.c b/sysdeps/powerpc/powerpc32/power4/multiarch/strnlen.c
new file mode 100644 (file)
index 0000000..b2ec1aa
--- /dev/null
+++ b/sysdeps/powerpc/powerpc32/power4/multiarch/strnlen.c
@@ -0,0 +1,33 @@
+/* Multiple versions of strnlen.
+   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 (__strnlen) __strnlen_ppc attribute_hidden;
+extern __typeof (__strnlen) __strnlen_power7 attribute_hidden;
+
+libc_ifunc (__strnlen,
+            (hwcap & PPC_FEATURE_HAS_VSX)
+            ? __strnlen_power7
+            : __strnlen_ppc);
+weak_alias (__strnlen, strnlen)
+libc_hidden_def (strnlen)
+#endif