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[PATCH 4/4] SPU add pread, pwrite, readv and writev
Add SPU pread, pwrite, readv and writev support via assist calls.
newlib ChangeLog:
2007-09-20 Patrick Mansfield <patmans@us.ibm.com>
* libc/machine/spu/sys/uio.h: New file for readv and writev use.
libgloss ChangeLog:
2007-09-20 Patrick Mansfield <patmans@us.ibm.com>
* spu/Makefile.in: Add new files.
* spu/jsre.h: Add JSRE_PREAD, JSRE_PWRITE, JSRE_READV, and
JSRE_WRITEV opcodes.
* spu/pread.c: New file to add pread via assist call.
* spu/pwrite.c: New file to add pwrite via assist call.
* spu/readv.c: New file to add readv via assist call.
* spu/writev.c: New file to add writev via assist call.
Index: src/libgloss/spu/jsre.h
===================================================================
--- src.orig/libgloss/spu/jsre.h
+++ src/libgloss/spu/jsre.h
@@ -90,6 +90,10 @@ Author: Andreas Neukoetter (ti95neuk@de.
#define JSRE_UMASK 62
#define JSRE_UTIME 63
#define JSRE_UTIMES 64
+#define JSRE_PREAD 65
+#define JSRE_PWRITE 66
+#define JSRE_READV 67
+#define JSRE_WRITEV 68
struct jsre_stat {
unsigned int dev;
Index: src/libgloss/spu/pread.c
===================================================================
--- /dev/null
+++ src/libgloss/spu/pread.c
@@ -0,0 +1,58 @@
+/*
+ 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 fd;
+ unsigned int pad0[3];
+ unsigned int buf;
+ unsigned int pad1[3];
+ unsigned int count;
+ unsigned int pad2[3];
+ unsigned int offset;
+ unsigned int pad3[3];
+} syscall_pread_t;
+
+ssize_t pread(int fd, void *buf, size_t count, off_t offset)
+{
+ syscall_pread_t sys;
+
+ sys.fd = (unsigned int) fd;
+ sys.buf = (unsigned int) buf;
+ sys.count = (unsigned int) count;
+ sys.offset = (unsigned int) offset;
+ return __send_to_ppe (JSRE_POSIX1_SIGNALCODE, JSRE_PREAD, &sys);
+}
Index: src/libgloss/spu/Makefile.in
===================================================================
--- src.orig/libgloss/spu/Makefile.in
+++ src/libgloss/spu/Makefile.in
@@ -60,9 +60,10 @@ OBJS = \
fsync.o ftruncate.o getcwd.o getpagesize.o getpid.o \
gettimeofday.o isatty.o kill.o lchown.o link.o lockf.o lseek.o \
lstat.o mkdir.o mknod.o mkstemp.o mktemp.o nanosleep.o open.o \
- read.o readlink.o rmdir.o sbrk.o sched_yield.o shm_open.o \
- shm_unlink.o stat.o symlink.o sync.o syscalls.o truncate.o umask.o \
- unlink.o utime.o utimes.o write.o
+ pread.o pwrite.o read.o readlink.o readv.o rmdir.o sbrk.o \
+ sched_yield.o shm_open.o shm_unlink.o stat.o symlink.o sync.o \
+ syscalls.o truncate.o umask.o unlink.o utime.o utimes.o write.o \
+ writev.o
# Object files specific to particular targets.
EVALOBJS = ${OBJS}
Index: src/libgloss/spu/pwrite.c
===================================================================
--- /dev/null
+++ src/libgloss/spu/pwrite.c
@@ -0,0 +1,58 @@
+/*
+ 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 fd;
+ unsigned int pad0[3];
+ unsigned int buf;
+ unsigned int pad1[3];
+ unsigned int count;
+ unsigned int pad2[3];
+ unsigned int offset;
+ unsigned int pad3[3];
+} syscall_pwrite_t;
+
+ssize_t pwrite(int fd, const void *buf, size_t count, off_t offset)
+{
+ syscall_pwrite_t sys;
+
+ sys.fd = (unsigned int) fd;
+ sys.buf = (unsigned int) buf;
+ sys.count = (unsigned int) count;
+ sys.offset = (unsigned int) offset;
+ return __send_to_ppe (JSRE_POSIX1_SIGNALCODE, JSRE_PWRITE, &sys);
+}
Index: src/libgloss/spu/readv.c
===================================================================
--- /dev/null
+++ src/libgloss/spu/readv.c
@@ -0,0 +1,55 @@
+/*
+ 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 <sys/uio.h>
+#include "jsre.h"
+
+typedef struct
+{
+ unsigned int fd;
+ unsigned int pad0[3];
+ unsigned int vec;
+ unsigned int pad1[3];
+ unsigned int count;
+ unsigned int pad2[3];
+} syscall_readv_t;
+
+ssize_t readv(int fd, const struct iovec *vec, int count)
+{
+ syscall_readv_t sys;
+
+ sys.fd = (unsigned int) fd;
+ sys.vec = (unsigned int) vec;
+ sys.count = (unsigned int) count;
+ return __send_to_ppe (JSRE_POSIX1_SIGNALCODE, JSRE_READV, &sys);
+}
Index: src/libgloss/spu/writev.c
===================================================================
--- /dev/null
+++ src/libgloss/spu/writev.c
@@ -0,0 +1,55 @@
+/*
+ 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 <sys/uio.h>
+#include "jsre.h"
+
+typedef struct
+{
+ unsigned int fd;
+ unsigned int pad0[3];
+ unsigned int vec;
+ unsigned int pad1[3];
+ unsigned int count;
+ unsigned int pad2[3];
+} syscall_writev_t;
+
+ssize_t writev(int fd, const struct iovec *vec, int count)
+{
+ syscall_writev_t sys;
+
+ sys.fd = (unsigned int) fd;
+ sys.vec = (unsigned int) vec;
+ sys.count = (unsigned int) count;
+ return __send_to_ppe (JSRE_POSIX1_SIGNALCODE, JSRE_WRITEV, &sys);
+}
Index: src/newlib/libc/machine/spu/sys/uio.h
===================================================================
--- /dev/null
+++ src/newlib/libc/machine/spu/sys/uio.h
@@ -0,0 +1,26 @@
+#ifndef _SYS_UIO_H
+#define _SYS_UIO_H
+
+#include <sys/types.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+ * Per POSIX
+ */
+
+struct iovec {
+ void *iov_base;
+ size_t iov_len;
+};
+
+ssize_t readv(int, const struct iovec *, int);
+ssize_t writev(int, const struct iovec *, int);
+
+#ifdef __cplusplus
+};
+#endif
+
+#endif