[PATCH 5/8] SPU add link, readlink and symlink
Patrick Mansfield
patmans@us.ibm.com
Mon Jun 18 21:30:00 GMT 2007
Add the following functions, implmented via assist calls:
int link(const char *oldpath, const char *newpath)
int readlink(const char *path, char *buf, int bufsiz)
int symlink(const char *oldpath, const char *newpath)
libgloss ChangeLog:
2007-06-18 Patrick Mansfield <patmans@us.ibm.com>
* spu/jsre.h: JSRE_LINK, JSRE_SYMLINK and JSRE_READLINK.
* spu/link.c: Add link support via an assist call.
* spu/readlink.c: Add readlink support via an assist call.
* spu/symlink.c: Add symlink support via an assist call.
* spu/Makefile.in: Add new files.
Index: quilt/libgloss/spu/Makefile.in
===================================================================
--- quilt.orig/libgloss/spu/Makefile.in
+++ quilt/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}
Index: quilt/libgloss/spu/link.c
===================================================================
--- /dev/null
+++ quilt/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);
+}
Index: quilt/libgloss/spu/jsre.h
===================================================================
--- quilt.orig/libgloss/spu/jsre.h
+++ quilt/libgloss/spu/jsre.h
@@ -67,6 +67,9 @@ Author: Andreas Neukoetter (ti95neuk@de.
#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;
Index: quilt/libgloss/spu/symlink.c
===================================================================
--- /dev/null
+++ quilt/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);
+}
Index: quilt/libgloss/spu/readlink.c
===================================================================
--- /dev/null
+++ quilt/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);
+}
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