2008-06-17 Ken Werner <ken.werner@de.ibm.com>

        * spu/Makefile.in: Add new file.
        * spu/linux_syscalls.c: New file to add Linux syscall support.

1 files changed, 62 insertions, 0 deletions

diff --git a/libgloss/spu/linux_syscalls.c b/libgloss/spu/linux_syscalls.c
new file mode 100644
index 000000000..e8563ef26
--- /dev/null
+++ b/libgloss/spu/linux_syscalls.c
@@ -0,0 +1,62 @@
+/*
+(C) Copyright IBM Corp. 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.
+
+Author: Ken Werner <ken.werner@de.ibm.com>
+*/
+
+#include "sys/linux_syscalls.h"
+#include <errno.h>
+
+int
+__linux_syscall (struct spu_syscall_block *s)
+{
+  int ret;
+  __vector unsigned int stopfunc =3D {
+    0x00002104,			/* stop 0x2104  */
+    (unsigned int) s,
+    0x4020007f,			/* nop  */
+    0x35000000			/* bi $0  */
+  };
+
+  void (*f) (void) =3D (void *) &stopfunc;
+  asm ("sync");
+
+  f ();
+
+  if (s->nr_ret > -4096ull)
+    {
+      errno =3D -s->nr_ret;
+      ret =3D -1;
+    }
+  else
+    {
+      ret =3D s->nr_ret;
+    }
+  return ret;
+}