diff options
Diffstat (limited to 'libgloss/spu/syscalls.c')
| -rw-r--r-- | libgloss/spu/syscalls.c | 260 |
1 files changed, 260 insertions, 0 deletions
diff --git a/libgloss/spu/syscalls.c b/libgloss/spu/syscalls.c new file mode 100644 index 000000000..bca23aaba --- /dev/null +++ b/libgloss/spu/syscalls.c @@ -0,0 +1,260 @@ +/* +(C) Copyright IBM Corp. 2005, 2006 + +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: Andreas Neukoetter (ti95neuk@de.ibm.com) +*/ + +#include <spu_intrinsics.h> +#include <stdarg.h> +#include <sys/types.h> +#include <sys/stat.h> +#include <fcntl.h> +#include <unistd.h> +#include <errno.h> +#include "../syscall.h" + +#include "jsre.h" + +static void +send_to_ppe_0x2101 (int opcode, void *data) +{ + + unsigned int combined = ( ( opcode<<24 )&0xff000000 ) | ( ( unsigned int )data & 0x00ffffff ); + + vector unsigned int stopfunc = { + 0x00002101, /* stop 0x2101 */ + (unsigned int) combined, + 0x4020007f, /* nop */ + 0x35000000 /* bi $0 */ + }; + + void (*f) (void) = (void *) &stopfunc; + asm ("sync"); + return (f ()); +} + + +int +isatty (int fd) +{ + return (0); +} + +int +getpid () +{ + return (1); +} + +int +kill (int pid, int sig) +{ + if (pid == 1) + { + _exit (sig); + } +} + +int +read (int file, void *ptr, size_t len) +{ + syscall_write_t sys; + syscall_out_t *psys_out = ( syscall_out_t* )&sys; + + sys.file = file; + sys.ptr = ( unsigned int )ptr; + sys.len = len; + + send_to_ppe_0x2101 (JSRE_READ, &sys); + + errno = psys_out->err; + return ( psys_out->rc); +} + +off_t +lseek (int file, off_t offset, int whence) +{ + syscall_lseek_t sys; + syscall_out_t *psys_out = ( syscall_out_t* )&sys; + + sys.file = file; + sys.offset = offset; + + switch( whence ){ + case SEEK_SET: + sys.whence = JSRE_SEEK_SET; + break; + case SEEK_CUR: + sys.whence = JSRE_SEEK_CUR; + break; + case SEEK_END: + sys.whence = JSRE_SEEK_END; + break; + } + + send_to_ppe_0x2101 (JSRE_LSEEK, &sys); + + errno = psys_out->err; + return ( psys_out->rc); +} + +int +write (int file, const void *ptr, size_t len) +{ + syscall_write_t sys; + syscall_out_t *psys_out = ( syscall_out_t* )&sys; + + sys.file = file; + sys.ptr = ( unsigned int )ptr; + sys.len = len; + + send_to_ppe_0x2101 (JSRE_WRITE, &sys); + + errno = psys_out->err; + return ( psys_out->rc); +} + +int +open (const char *filename, int flags, ...) +{ + int rc; + int len; + + syscall_open_t sys ; + syscall_out_t *psys_out = ( syscall_out_t* )&sys; + + sys.pathname = ( unsigned int )filename; + + sys.flags = 0; + + sys.flags |= ( ( flags & O_CREAT ) ? JSRE_O_CREAT : 0 ); + sys.flags |= ( ( flags & O_EXCL ) ? JSRE_O_EXCL : 0 ); + sys.flags |= ( ( flags & O_NOCTTY ) ? JSRE_O_NOCTTY : 0 ); + sys.flags |= ( ( flags & O_TRUNC ) ? JSRE_O_TRUNC : 0 ); + sys.flags |= ( ( flags & O_APPEND ) ? JSRE_O_APPEND : 0 ); +// sys.flags |= ( ( flags & O_NOBLOCK ) ? JSRE_O_NOBLOCK : 0 ); +// sys.flags |= ( ( flags & O_NDELAY ) ? JSRE_O_NDELAY : 0 ); + sys.flags |= ( ( flags & O_SYNC ) ? JSRE_O_SYNC : 0 ); +// sys.flags |= ( ( flags & O_NOFOLLOW ) ? JSRE_O_NOFOLLOW : 0 ); +// sys.flags |= ( ( flags & O_DIRECTORY ) ? JSRE_O_DIRECTORY : 0 ); +// sys.flags |= ( ( flags & O_DIRECT ) ? JSRE_O_DIRECT : 0 ); +// sys.flags |= ( ( flags & O_ASYNC ) ? JSRE_O_ASYNC : 0 ); +// sys.flags |= ( ( flags & O_LARGEFILE ) ? JSRE_O_LARGEFILE : 0 ); + + + sys.flags |= ( ( flags & O_RDONLY ) ? JSRE_O_RDONLY : 0 ); + sys.flags |= ( ( flags & O_WRONLY ) ? JSRE_O_WRONLY : 0 ); + sys.flags |= ( ( flags & O_RDWR ) ? JSRE_O_RDWR : 0 ); + + + /* FIXME: we have to check/map all flags */ + + if ((sys.flags & O_CREAT)) + { + va_list ap; + + va_start (ap, flags); + sys.mode = va_arg (ap, int); + va_end (ap); + + } + else + { + sys.mode = 0; + } + + send_to_ppe_0x2101 ( JSRE_OPEN, &sys); + + errno = psys_out->err; + return ( psys_out->rc); +} + +int +close (int file) +{ + int rc; + + syscall_close_t sys ; + syscall_out_t *psys_out = ( syscall_out_t* )&sys; + + sys.file = file; + + send_to_ppe_0x2101 (JSRE_CLOSE, &sys); + + errno = psys_out->err; + return ( psys_out->rc); +} + +int +fstat (int file, struct stat *pstat) +{ + syscall_fstat_t sys; + syscall_out_t *psys_out = ( syscall_out_t* )&sys; + jsre_stat_t pjstat; + + sys.file = file; + sys.ptr = ( unsigned int )&pjstat; + + send_to_ppe_0x2101 (JSRE_FSTAT, &sys); + + pstat->st_dev = pjstat.dev; + pstat->st_ino = pjstat.ino; + pstat->st_mode = pjstat.mode; + pstat->st_nlink = pjstat.nlink; + pstat->st_uid = pjstat.uid; + pstat->st_gid = pjstat.gid; + pstat->st_rdev = pjstat.rdev; + pstat->st_size = pjstat.size; + pstat->st_blksize = pjstat.blksize; + pstat->st_blocks = pjstat.blocks; + pstat->st_atime = pjstat.atime; + pstat->st_mtime = pjstat.mtime; + pstat->st_ctime = pjstat.ctime; + + + errno = psys_out->err; + return( psys_out->rc ); +} + +int +unlink (const char *pathname) +{ + int rc; + + syscall_unlink_t sys ; + syscall_out_t *psys_out = ( syscall_out_t* )&sys; + + sys.pathname = ( unsigned int )pathname; + + send_to_ppe_0x2101 (JSRE_UNLINK, &sys); + + errno = psys_out->err; + return ( psys_out->rc); +} + |