diff options
Diffstat (limited to 'libgloss/visium/syscalls.c')
| -rw-r--r-- | libgloss/visium/syscalls.c | 341 |
1 files changed, 0 insertions, 341 deletions
diff --git a/libgloss/visium/syscalls.c b/libgloss/visium/syscalls.c deleted file mode 100644 index de0ec16fb..000000000 --- a/libgloss/visium/syscalls.c +++ /dev/null @@ -1,341 +0,0 @@ -/* system calls for the Visium processor. - - Copyright (c) 2015 Rolls-Royce Controls and Data Services Limited. - 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 Rolls-Royce Controls and Data Services Limited 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. */ - -#include <sys/types.h> -#include <sys/stat.h> -#include <sys/time.h> -#include <fcntl.h> -#include <unistd.h> -#include <errno.h> -#include <stdarg.h> -#include <string.h> -#include "io.h" -#include "syscall.h" - -#ifdef TARGET_SIM -struct file_register2 -{ - unsigned action; - unsigned p1, p2, p3, p4; - unsigned error; - unsigned retval; -}; - -extern struct file_register2 _sim_fileio_register; - -static volatile struct file_register2 *const fileio = &_sim_fileio_register; - -static int -do_syscall (unsigned action, unsigned p1, unsigned p2, - unsigned p3, unsigned p4, int *error) -{ - fileio->p1 = p1; - fileio->p2 = p2; - fileio->p3 = p3; - fileio->p4 = p4; - fileio->action = action; - - *error = (int) fileio->error; - return (int) fileio->retval; -} -#else -static int -do_syscall (unsigned action, unsigned p1, unsigned p2, - unsigned p3, unsigned p4, int *error) -{ - int ret; - int err; - - /* There is a two instruction delay after the software interrupt is - initiated, to allow it to take effect. */ - - asm volatile ("\n\ - move.l r1,%3\n\ - move.l r2,%4\n\ - move.l r3,%5\n\ - moviu r5,%%u 0x20002208\n\ - movil r5,%%l 0x20002208\n\ - move.l r4,%6\n\ - write.l (r5),%2\n\ - nop\n\ - nop\n\ - move.l %0,r1\n\ - move.l %1,r2" - : "=r" (ret), "=r" (err) - : "r" (action), "r" (p1), "r" (p2), "r" (p3), "r" (p4) - : "r1", "r2", "r3", "r4", "r5"); - - *error = err; - return ret; -} -#endif - -int -close (int fildes) -{ - int status; - int error; - - status = do_syscall (SYS_close, fildes, 0, 0, 0, &error); - - if (status < 0) - errno = __hosted_from_gdb_errno (error); - - return status; -} - -void _exit (int) __attribute ((__noreturn__)); - -void -_exit (int code) -{ -#ifdef TARGET_SIM - asm volatile ("stop 0,%0" : : "r" (code & 0xff)); -#else - int error; - do_syscall (SYS_exit, code, 0, 0, 0, &error); -#endif - - /* Should never reach this point. Since this function is not supposed to - return, pretend to get stuck in a loop. */ - while (1) - ; -} - -#ifdef TARGET_SIM -extern long long _sim_cmdline_header; - -long long -_get_cmdline (void) -{ - return _sim_cmdline_header; -} -#endif - -int -fstat (int fildes, struct stat *st) -{ - struct gdb_stat gst; - int status; - int error; - - status = do_syscall (SYS_fstat, fildes, (unsigned) &gst, 0, 0, &error); - - if (status < 0) - errno = __hosted_from_gdb_errno (error); - else - __hosted_from_gdb_stat (&gst, st); - - return status; -} - -int -gettimeofday (struct timeval *__p, void *__tz) -{ - struct timeval *tv = __p; - struct timezone *tz = __tz; - struct gdb_timeval gtv; - int status; - int error; - - status = do_syscall (SYS_gettimeofday, (unsigned) >v, 0, 0, 0, &error); - - /* The timezone argument is not really supported so: - Local time is GMT, no daylight saving */ - if (tz) - { - tz->tz_minuteswest = 0; - tz->tz_dsttime = 0; - } - - if (status < 0) - errno = __hosted_from_gdb_errno (error); - else - __hosted_from_gdb_timeval (>v, tv); - - return status; -} - -int -isatty (int fildes) -{ - int status; - int error; - - status = do_syscall (SYS_isatty, fildes, 0, 0, 0, &error); - - if (status == 0) - errno = __hosted_from_gdb_errno (error); - - return status; -} - -off_t -lseek (int fildes, off_t offset, int whence) -{ - off_t ret; - int error; - - ret = do_syscall (SYS_lseek, fildes, offset, - __hosted_to_gdb_lseek_flags (whence), 0, &error); - - if (ret == (off_t)-1) - errno = __hosted_from_gdb_errno (error); - - return ret; -} - -int -open (const char *path, int oflag, ...) -{ - mode_t mode = 0; - int status; - int error; - int len = strlen (path) + 1; - - if (oflag & O_CREAT) - { - va_list ap; - va_start (ap, oflag); - mode = va_arg (ap, mode_t); - va_end (ap); - } - - status = do_syscall (SYS_open, (unsigned) path, len, - __hosted_to_gdb_open_flags (oflag), - __hosted_to_gdb_mode_t (mode), &error); - - if (status < 0) - errno = __hosted_from_gdb_errno (error); - - return status; -} - -int -read (int fildes, void *buf, size_t nbyte) -{ - int status; - int error; - - status = do_syscall (SYS_read, fildes, (unsigned) buf, nbyte, 0, &error); - - if (status < 0) - errno = __hosted_from_gdb_errno (error); - - return status; -} - -int -rename (const char *old, const char *new) -{ - int status; - int error; - int oldlen = strlen (old) + 1; - int newlen = strlen (new) + 1; - - status = do_syscall (SYS_rename, (unsigned) old, oldlen, (unsigned) new, - newlen, &error); - - if (status < 0) - errno = __hosted_from_gdb_errno (error); - - return status; -} - -int -stat (const char *path, struct stat *st) -{ - struct gdb_stat gst; - int status; - int error; - int len = strlen (path) + 1; - - status = do_syscall (SYS_stat, (unsigned) path, len, (unsigned) &gst, 0, - &error); - - if (status < 0) - errno = __hosted_from_gdb_errno (error); - else - __hosted_from_gdb_stat (&gst, st); - - return status; -} - -int -system (const char *string) -{ - int status; - int error; - int len = strlen (string) + 1; - - status = do_syscall (SYS_system, (unsigned) string, len, 0, 0, &error); - - return status; -} - -int -unlink (const char *path) -{ - int status; - int error; - int len = strlen (path) + 1; - - status = do_syscall (SYS_unlink, (unsigned) path, len, 0, 0, &error); - - if (status < 0) - errno = __hosted_from_gdb_errno (error); - - return status; -} - -int -write (int fildes, const void *buf, size_t nbyte) -{ - int status; - int error; - - status = do_syscall (SYS_write, fildes, (unsigned) buf, nbyte, 0, &error); - - if (status < 0) - errno = __hosted_from_gdb_errno (error); - - return status; -} - -extern clock_t _sim_clock; - -clock_t -clock (void) -{ -#ifdef TARGET_SIM - return _sim_clock; -#else - return (clock_t) -1; -#endif -} |