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nuke lseek

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This commit is contained in:
Michael Meissner 1997-11-26 01:13:40 +00:00
parent 8c31916d92
commit 69628a60ea
2 changed files with 224 additions and 56 deletions
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4
sim/common/ChangeLog
View File

@ -1,3 +1,7 @@
Tue Nov 25 20:12:46 1997 Michael Meissner <meissner@cygnus.com>
* sim-io.c (sim_io_syscalls): Disable lseek.
Tue Nov 25 00:12:38 1997 Doug Evans <devans@seba.cygnus.com>
* gennltvals.sh: Generate syscall values for d30v.

276
sim/common/sim-io.c
View File

@ -19,71 +19,70 @@
*/
#ifndef _SIM_IO_C_
#define _SIM_IO_C_
#include "sim-state.h"
#include "sim-main.h"
#include "sim-io.h"
#include "targ-vals.h"
/* See the file include/callbacks.h for a description */
INLINE_SIM_IO(int)
int
sim_io_init(SIM_DESC sd)
{
return sd->callback->init (sd->callback);
return STATE_CALLBACK (sd)->init (STATE_CALLBACK (sd));
}
INLINE_SIM_IO(int)
int
sim_io_shutdown(SIM_DESC sd)
{
return sd->callback->shutdown (sd->callback);
return STATE_CALLBACK (sd)->shutdown (STATE_CALLBACK (sd));
}
INLINE_SIM_IO(int)
int
sim_io_unlink(SIM_DESC sd,
const char *f1)
{
return sd->callback->unlink (sd->callback, f1);
return STATE_CALLBACK (sd)->unlink (STATE_CALLBACK (sd), f1);
}
INLINE_SIM_IO(long)
long
sim_io_time(SIM_DESC sd,
long *t)
{
return sd->callback->time (sd->callback, t);
return STATE_CALLBACK (sd)->time (STATE_CALLBACK (sd), t);
}
INLINE_SIM_IO(int)
int
sim_io_system(SIM_DESC sd, const char *s)
{
return sd->callback->system (sd->callback, s);
return STATE_CALLBACK (sd)->system (STATE_CALLBACK (sd), s);
}
INLINE_SIM_IO(int)
int
sim_io_rename(SIM_DESC sd,
const char *f1,
const char *f2)
{
return sd->callback->rename (sd->callback, f1, f2);
return STATE_CALLBACK (sd)->rename (STATE_CALLBACK (sd), f1, f2);
}
INLINE_SIM_IO(int)
int
sim_io_write_stdout(SIM_DESC sd,
const char *buf,
int len)
{
switch (CURRENT_STDIO) {
case DO_USE_STDIO:
return sd->callback->write_stdout (sd->callback, buf, len);
return STATE_CALLBACK (sd)->write_stdout (STATE_CALLBACK (sd), buf, len);
break;
case DONT_USE_STDIO:
return sd->callback->write (sd->callback, 1, buf, len);
return STATE_CALLBACK (sd)->write (STATE_CALLBACK (sd), 1, buf, len);
break;
default:
sim_io_error (sd, "sim_io_write_stdout: unaccounted switch\n");
@ -93,12 +92,12 @@ sim_io_write_stdout(SIM_DESC sd,
}
INLINE_SIM_IO(void)
void
sim_io_flush_stdout(SIM_DESC sd)
{
switch (CURRENT_STDIO) {
case DO_USE_STDIO:
sd->callback->flush_stdout (sd->callback);
STATE_CALLBACK (sd)->flush_stdout (STATE_CALLBACK (sd));
break;
case DONT_USE_STDIO:
break;
@ -109,17 +108,17 @@ sim_io_flush_stdout(SIM_DESC sd)
}
INLINE_SIM_IO(int)
int
sim_io_write_stderr(SIM_DESC sd,
const char *buf,
int len)
{
switch (CURRENT_STDIO) {
case DO_USE_STDIO:
return sd->callback->write_stderr (sd->callback, buf, len);
return STATE_CALLBACK (sd)->write_stderr (STATE_CALLBACK (sd), buf, len);
break;
case DONT_USE_STDIO:
return sd->callback->write (sd->callback, 2, buf, len);
return STATE_CALLBACK (sd)->write (STATE_CALLBACK (sd), 2, buf, len);
break;
default:
sim_io_error (sd, "sim_io_write_stderr: unaccounted switch\n");
@ -129,12 +128,12 @@ sim_io_write_stderr(SIM_DESC sd,
}
INLINE_SIM_IO(void)
void
sim_io_flush_stderr(SIM_DESC sd)
{
switch (CURRENT_STDIO) {
case DO_USE_STDIO:
sd->callback->flush_stderr (sd->callback);
STATE_CALLBACK (sd)->flush_stderr (STATE_CALLBACK (sd));
break;
case DONT_USE_STDIO:
break;
@ -145,27 +144,27 @@ sim_io_flush_stderr(SIM_DESC sd)
}
INLINE_SIM_IO(int)
int
sim_io_write(SIM_DESC sd,
int fd,
const char *buf,
int len)
{
return sd->callback->write (sd->callback, fd, buf, len);
return STATE_CALLBACK (sd)->write (STATE_CALLBACK (sd), fd, buf, len);
}
INLINE_SIM_IO(int)
int
sim_io_read_stdin(SIM_DESC sd,
char *buf,
int len)
{
switch (CURRENT_STDIO) {
case DO_USE_STDIO:
return sd->callback->read_stdin (sd->callback, buf, len);
return STATE_CALLBACK (sd)->read_stdin (STATE_CALLBACK (sd), buf, len);
break;
case DONT_USE_STDIO:
return sd->callback->read (sd->callback, 0, buf, len);
return STATE_CALLBACK (sd)->read (STATE_CALLBACK (sd), 0, buf, len);
break;
default:
sim_io_error (sd, "sim_io_read_stdin: unaccounted switch\n");
@ -175,118 +174,283 @@ sim_io_read_stdin(SIM_DESC sd,
}
INLINE_SIM_IO(int)
int
sim_io_read(SIM_DESC sd, int fd,
char *buf,
int len)
{
return sd->callback->read (sd->callback, fd, buf, len);
return STATE_CALLBACK (sd)->read (STATE_CALLBACK (sd), fd, buf, len);
}
INLINE_SIM_IO(int)
int
sim_io_open(SIM_DESC sd,
const char *name,
int flags)
{
return sd->callback->open (sd->callback, name, flags);
return STATE_CALLBACK (sd)->open (STATE_CALLBACK (sd), name, flags);
}
INLINE_SIM_IO(int)
int
sim_io_lseek(SIM_DESC sd,
int fd,
long off,
int way)
{
return sd->callback->lseek (sd->callback, fd, off, way);
return STATE_CALLBACK (sd)->lseek (STATE_CALLBACK (sd), fd, off, way);
}
INLINE_SIM_IO(int)
int
sim_io_isatty(SIM_DESC sd,
int fd)
{
return sd->callback->isatty (sd->callback, fd);
return STATE_CALLBACK (sd)->isatty (STATE_CALLBACK (sd), fd);
}
INLINE_SIM_IO(int)
int
sim_io_get_errno(SIM_DESC sd)
{
return sd->callback->get_errno (sd->callback);
return STATE_CALLBACK (sd)->get_errno (STATE_CALLBACK (sd));
}
INLINE_SIM_IO(int)
int
sim_io_close(SIM_DESC sd,
int fd)
{
return sd->callback->close (sd->callback, fd);
return STATE_CALLBACK (sd)->close (STATE_CALLBACK (sd), fd);
}
INLINE_SIM_IO(void)
void
sim_io_printf(SIM_DESC sd,
const char *fmt,
...)
{
va_list ap;
va_start(ap, fmt);
sd->callback->vprintf_filtered (sd->callback, fmt, ap);
STATE_CALLBACK (sd)->vprintf_filtered (STATE_CALLBACK (sd), fmt, ap);
va_end(ap);
}
INLINE_SIM_IO(void)
void
sim_io_vprintf(SIM_DESC sd,
const char *fmt,
va_list ap)
{
sd->callback->vprintf_filtered (sd->callback, fmt, ap);
STATE_CALLBACK (sd)->vprintf_filtered (STATE_CALLBACK (sd), fmt, ap);
}
INLINE_SIM_IO(void)
void
sim_io_eprintf(SIM_DESC sd,
const char *fmt,
...)
{
va_list ap;
va_start(ap, fmt);
sd->callback->evprintf_filtered (sd->callback, fmt, ap);
STATE_CALLBACK (sd)->evprintf_filtered (STATE_CALLBACK (sd), fmt, ap);
va_end(ap);
}
INLINE_SIM_IO(void)
void
sim_io_evprintf(SIM_DESC sd,
const char *fmt,
va_list ap)
{
sd->callback->evprintf_filtered (sd->callback, fmt, ap);
STATE_CALLBACK (sd)->evprintf_filtered (STATE_CALLBACK (sd), fmt, ap);
}
INLINE_SIM_IO(void)
void
sim_io_error(SIM_DESC sd,
const char *fmt,
...)
{
if (sd == NULL || sd->callback == NULL) {
if (sd == NULL || STATE_CALLBACK (sd) == NULL) {
va_list ap;
va_start(ap, fmt);
vfprintf (stderr, fmt, ap);
va_end(ap);
fprintf (stderr, "\n");
abort ();
}
else {
va_list ap;
va_start(ap, fmt);
sd->callback->evprintf_filtered (sd->callback, fmt, ap);
STATE_CALLBACK (sd)->evprintf_filtered (STATE_CALLBACK (sd), fmt, ap);
va_end(ap);
sd->callback->error (sd->callback, "");
STATE_CALLBACK (sd)->error (STATE_CALLBACK (sd), "");
}
}
#endif
void
sim_io_poll_quit(SIM_DESC sd)
{
if (STATE_CALLBACK (sd)->poll_quit != NULL)
if (STATE_CALLBACK (sd)->poll_quit (STATE_CALLBACK (sd)))
sim_stop (sd);
}
static char *
sim_io_getstring(SIM_DESC sd,
sim_cpu *cpu,
address_word cia,
address_word target_string)
{
int len = 0;
int len2;
char *buf;
while (sim_core_read_1 (cpu, cia, sim_core_read_map, target_string+len) != 0)
len++;
buf = NZALLOC (char, len+1);
buf[len] = '\0';
sim_core_read_buffer (sd, cpu, sim_core_read_map, buf, target_string, len);
return buf;
}
void
sim_io_syscalls(SIM_DESC sd,
int syscall,
address_word cia,
address_word parm1,
address_word parm2,
address_word parm3,
address_word parm4,
address_word *syscall_return,
address_word *errno_return)
{
sim_cpu *cpu = STATE_CPU (sd, 0);
struct host_callback_struct *callback = STATE_CALLBACK (sd);
int len, len2, len3;
int ret;
char *buf;
int fd;
int sys_errno = 0;
*errno_return = 0;
*syscall_return = 0;
switch (syscall)
{
case 1: /* exit (status) */
sim_engine_halt (sd, STATE_CPU (sd, 0), NULL, cia, sim_exited, parm1);
break;
case 2: /* open (filename, flags, mode) */
buf = sim_io_getstring (sd, cpu, cia, parm1);
ret = *syscall_return = callback->open (callback, buf, parm2);
if (ret < 0)
*errno_return = callback->get_errno (callback);
zfree (buf);
break;
case 3: /* close (filedes) */
ret = *syscall_return = callback->close (callback, parm1);
if (ret < 0)
*errno_return = callback->get_errno (callback);
break;
case 4: /* read (filedes, buffer, len) */
fd = parm1;
len = parm3;
buf = NZALLOC (char, len);
if (fd == 0)
len2 = sim_io_read_stdin (sd, buf, len);
else
len2 = sim_io_read (sd, fd, buf, len);
if (len2 > 0)
{
len3 = sim_core_write_buffer (sd, cpu, sim_core_write_map, buf, parm2,
len);
if (len3 < len2)
sim_engine_abort (sd, cpu, cia,
"Could only write back %d bytes for read system call, wanted to write %d\n",
len3, len2);
*syscall_return = len2;
}
else
*errno_return = callback->get_errno (callback);
zfree (buf);
break;
case 5: /* write (filedes, buffer, len) */
fd = parm1;
len = parm3;
buf = NZALLOC (char, len);
len = sim_core_read_buffer (sd, cpu, sim_core_read_map, buf, parm2, len);
if (fd == 1)
{
len2 = sim_io_write_stdout (sd, buf, len);
sim_io_flush_stdout (sd);
}
else if (fd == 2)
{
len2 = sim_io_write_stderr (sd, buf, len);
sim_io_flush_stderr (sd);
}
else
len2 = sim_io_write (sd, fd, buf, len);
if (len2 > 0)
*syscall_return = len2;
else
*errno_return = callback->get_errno (callback);
zfree (buf);
break;
case 6: /* lseek (filedes, offset, whence) */
*errno_return = TARGET_ENOSYS;
break;
case 7: /* unlink (filename) */
buf = sim_io_getstring (sd, cpu, cia, parm1);
ret = *syscall_return = callback->unlink (callback, buf);
if (ret < 0)
*errno_return = callback->get_errno (callback);
zfree (buf);
break;
case 8: /* getpid () */
case 9: /* kill (signal, pid) */
case 10: /* fstat (filedes, packet) */
case 11: /* reserved for sbrk */
case 12: /* argvlen () */
case 13: /* argv () */
case 14: /* chdir (dir) */
case 15: /* stat (filename, packet) */
case 16: /* chmod (filename, mode) */
case 17: /* utime (filename, packet) */
case 18: /* time (time_t *) */
*errno_return = TARGET_ENOSYS;
break;
default:
sim_engine_abort (sd, cpu, cia, "Unknown monitor call %d", syscall);
break;
}
if (*errno_return)
*syscall_return = -1;
return;
}