1 files changed, 67 insertions, 0 deletions
diff --git a/newlib/libc/machine/spu/strlen_ea.c b/newlib/libc/machine/spu/strlen_ea.c
new file mode 100644
index 000000000..f00cec275
--- /dev/null
+++ b/newlib/libc/machine/spu/strlen_ea.c
@@ -0,0 +1,67 @@
+/*
+(C) Copyright IBM Corp. 2007, 2008
+
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+* Redistributions of source code must retain the above copyright notice,
+this list of conditions and the following disclaimer.
+* Redistributions in binary form must reproduce the above copyright
+notice, this list of conditions and the following disclaimer in the
+documentation and/or other materials provided with the distribution.
+* Neither the name of IBM nor the names of its contributors may be
+used to endorse or promote products derived from this software without
+specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGE.
+
+*/
+
+#include <stddef.h>
+#include "ea_internal.h"
+#include <ea.h>
+#include <string.h>
+#include <spu_cache.h>
+
+COMPAT_EA_ALIAS (strlen_ea);
+
+size_ea_t
+strlen_ea (__ea const char *s)
+{
+  __ea void *curr_s = (__ea void *) s;
+  void *local_s;
+  size_ea_t left_in_cacheline;
+  void *where_null;
+  size_ea_t length_of_string = 0;
+
+  while (1)
+    {
+      left_in_cacheline =
+	ROUND_UP_NEXT_128 ((size_ea_t) curr_s) - (size_ea_t) curr_s;
+      local_s = __cache_fetch (curr_s);
+      where_null = memchr (local_s, '\0', left_in_cacheline);
+
+      if (where_null)
+	{
+	  length_of_string += ((size_ea_t) (int) where_null - (size_ea_t)
+			       (int) local_s);
+	  return length_of_string;
+	}
+
+      /* update values to take into account what we copied */
+      curr_s += left_in_cacheline;
+      length_of_string += left_in_cacheline;
+    }
+}