2007-06-20 Patrick Mansfield <patmans@us.ibm.com>

        * spu/jsre.h: JSRE_LINK, JSRE_SYMLINK and JSRE_READLINK.
        * spu/link.c: New file to add link support via an assist call.
        * spu/readlink.c: New file to add readlink support via an assist call.
        * spu/symlink.c: New file to add symlink support via an assist call.
        * spu/Makefile.in: Add new files.

5 files changed, 174 insertions, 2 deletions

diff --git a/libgloss/spu/Makefile.in b/libgloss/spu/Makefile.in
index 5ec6b31f0..c71db76dd 100644
--- a/libgloss/spu/Makefile.in
+++ b/libgloss/spu/Makefile.in
@@ -58,8 +58,9 @@ OBJS = \
 	access.o chdir.o chmod.o chown.o close.o conv_stat.o dup.o exit.o \
 	fchdir.o fchmod.o fchown.o fstat.o ftruncate.o getcwd.o \
 	getpagesize.o getpid.o gettimeofday.o isatty.o kill.o lchown.o \
-	lseek.o lstat.o mkdir.o mknod.o nanosleep.o open.o read.o rmdir.o \
-	sbrk.o stat.o syscalls.o unlink.o write.o
+	link.o lseek.o lstat.o mkdir.o mknod.o nanosleep.o open.o read.o \
+	readlink.o rmdir.o sbrk.o stat.o symlink.o syscalls.o unlink.o \
+	write.o
 
 # Object files specific to particular targets.
 EVALOBJS = ${OBJS}
diff --git a/libgloss/spu/jsre.h b/libgloss/spu/jsre.h
index 33a2af739..a6f5c8ed1 100644
--- a/libgloss/spu/jsre.h
+++ b/libgloss/spu/jsre.h
@@ -67,6 +67,9 @@ Author: Andreas Neukoetter (ti95neuk@de.ibm.com)
 #define JSRE_FCHOWN 41
 #define JSRE_LCHOWN 42
 #define JSRE_GETCWD 43
+#define JSRE_LINK 44
+#define JSRE_SYMLINK 45
+#define JSRE_READLINK 46
 
 struct jsre_stat {
     unsigned int dev;
diff --git a/libgloss/spu/link.c b/libgloss/spu/link.c
new file mode 100644
index 000000000..dde2a0dc6
--- /dev/null
+++ b/libgloss/spu/link.c
@@ -0,0 +1,53 @@
+/*
+  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 oldpath;
+  unsigned int pad0[3];
+  unsigned int newpath;
+  unsigned int pad1[3];
+} syscall_link_t;
+
+int
+link (const char *oldpath, const char *newpath)
+{
+  syscall_link_t sys;
+
+  sys.oldpath = (unsigned int) oldpath;
+  sys.newpath = (unsigned int) newpath;
+  return __send_to_ppe (JSRE_POSIX1_SIGNALCODE, JSRE_LINK, &sys);
+}
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);
+}
diff --git a/libgloss/spu/symlink.c b/libgloss/spu/symlink.c
new file mode 100644
index 000000000..f95825b02
--- /dev/null
+++ b/libgloss/spu/symlink.c
@@ -0,0 +1,53 @@
+/*
+  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 oldpath;
+  unsigned int pad0[3];
+  unsigned int newpath;
+  unsigned int pad1[3];
+} syscall_link_t;
+
+int
+symlink (const char *oldpath, const char *newpath)
+{
+  syscall_link_t sys;
+
+  sys.oldpath = (unsigned int) oldpath;
+  sys.newpath = (unsigned int) newpath;
+  return __send_to_ppe (JSRE_POSIX1_SIGNALCODE, JSRE_SYMLINK, &sys);
+}