1 files changed, 62 insertions, 0 deletions
diff --git a/libgloss/spu/readlink.c b/libgloss/spu/readlink.c
new file mode 100644
index 000000000..ac7c59182
--- /dev/null
+++ b/libgloss/spu/readlink.c
@@ -0,0 +1,62 @@
+/*
+  Copyright 2007
+  International Business Machines Corporation,
+  Sony Computer Entertainment, Incorporated,
+  Toshiba Corporation,
+
+  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 names of the copyright holders nor the names of their
+  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 <unistd.h>
+#include "jsre.h"
+
+typedef struct
+{
+  unsigned int path;
+  unsigned int pad0[3];
+  unsigned int buf;
+  unsigned int pad1[3];
+  unsigned int bufsiz;
+  unsigned int pad2[3];
+} syscall_readlink_t;
+
+/*
+ * POSIX says readlink returns ssize_t, and has an size_t bufsiz, but
+ * newlib has it prototyped as returning int, and int bufsiz. ssize_t,
+ * size_t and int are ally currently 4 bytes for SPU, so just leave them
+ * as ints for now.
+ */
+int
+readlink (const char *path, char *buf, int bufsiz)
+{
+  syscall_readlink_t sys;
+
+  sys.path = (unsigned int) path;
+  sys.buf = (unsigned int) buf;
+  sys.bufsiz = (unsigned int) bufsiz;
+  return __send_to_ppe (JSRE_POSIX1_SIGNALCODE, JSRE_READLINK, &sys);
+}