-/* This file is part of the program psim.
+/* The common simulator framework for GDB, the GNU Debugger.
- Copyright (C) 1994-1997, Andrew Cagney <cagney@highland.com.au>
- Copyright (C) 1998, Cygnus Solutions.
+ Copyright 2002-2016 Free Software Foundation, Inc.
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
+ Contributed by Andrew Cagney and Red Hat.
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
-
- */
+ This file is part of GDB.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include "sim-main.h"
#include <unistd.h>
#endif
+/* Define the rate at which the simulator should poll the host
+ for a quit. */
+#ifndef POLL_QUIT_INTERVAL
+#define POLL_QUIT_INTERVAL 0x10
+#endif
+
+static int poll_quit_count = POLL_QUIT_INTERVAL;
/* See the file include/callbacks.h for a description */
int
-sim_io_init(SIM_DESC sd)
+sim_io_init (SIM_DESC sd)
{
return STATE_CALLBACK (sd)->init (STATE_CALLBACK (sd));
}
int
-sim_io_shutdown(SIM_DESC sd)
+sim_io_shutdown (SIM_DESC sd)
{
return STATE_CALLBACK (sd)->shutdown (STATE_CALLBACK (sd));
}
int
-sim_io_unlink(SIM_DESC sd,
- const char *f1)
+sim_io_unlink (SIM_DESC sd,
+ const char *f1)
{
return STATE_CALLBACK (sd)->unlink (STATE_CALLBACK (sd), f1);
}
long
-sim_io_time(SIM_DESC sd,
- long *t)
+sim_io_time (SIM_DESC sd,
+ long *t)
{
return STATE_CALLBACK (sd)->time (STATE_CALLBACK (sd), t);
}
int
-sim_io_system(SIM_DESC sd, const char *s)
+sim_io_system (SIM_DESC sd, const char *s)
{
return STATE_CALLBACK (sd)->system (STATE_CALLBACK (sd), s);
}
int
-sim_io_rename(SIM_DESC sd,
- const char *f1,
- const char *f2)
+sim_io_rename (SIM_DESC sd,
+ const char *f1,
+ const char *f2)
{
return STATE_CALLBACK (sd)->rename (STATE_CALLBACK (sd), f1, f2);
}
int
-sim_io_write_stdout(SIM_DESC sd,
- const char *buf,
- int len)
+sim_io_write_stdout (SIM_DESC sd,
+ const char *buf,
+ int len)
{
switch (CURRENT_STDIO) {
case DO_USE_STDIO:
void
-sim_io_flush_stdout(SIM_DESC sd)
+sim_io_flush_stdout (SIM_DESC sd)
{
switch (CURRENT_STDIO) {
case DO_USE_STDIO:
int
-sim_io_write_stderr(SIM_DESC sd,
- const char *buf,
- int len)
+sim_io_write_stderr (SIM_DESC sd,
+ const char *buf,
+ int len)
{
switch (CURRENT_STDIO) {
case DO_USE_STDIO:
void
-sim_io_flush_stderr(SIM_DESC sd)
+sim_io_flush_stderr (SIM_DESC sd)
{
switch (CURRENT_STDIO) {
case DO_USE_STDIO:
int
-sim_io_write(SIM_DESC sd,
- int fd,
- const char *buf,
- int len)
+sim_io_write (SIM_DESC sd,
+ int fd,
+ const char *buf,
+ int len)
{
return STATE_CALLBACK (sd)->write (STATE_CALLBACK (sd), fd, buf, len);
}
int
-sim_io_read_stdin(SIM_DESC sd,
- char *buf,
- int len)
+sim_io_read_stdin (SIM_DESC sd,
+ char *buf,
+ int len)
{
switch (CURRENT_STDIO) {
case DO_USE_STDIO:
int
-sim_io_read(SIM_DESC sd, int fd,
- char *buf,
- int len)
+sim_io_read (SIM_DESC sd, int fd,
+ char *buf,
+ int len)
{
return STATE_CALLBACK (sd)->read (STATE_CALLBACK (sd), fd, buf, len);
}
int
-sim_io_open(SIM_DESC sd,
- const char *name,
- int flags)
+sim_io_open (SIM_DESC sd,
+ const char *name,
+ int flags)
{
return STATE_CALLBACK (sd)->open (STATE_CALLBACK (sd), name, flags);
}
int
-sim_io_lseek(SIM_DESC sd,
- int fd,
- long off,
- int way)
+sim_io_lseek (SIM_DESC sd,
+ int fd,
+ long off,
+ int way)
{
return STATE_CALLBACK (sd)->lseek (STATE_CALLBACK (sd), fd, off, way);
}
int
-sim_io_isatty(SIM_DESC sd,
- int fd)
+sim_io_isatty (SIM_DESC sd,
+ int fd)
{
return STATE_CALLBACK (sd)->isatty (STATE_CALLBACK (sd), fd);
}
int
-sim_io_get_errno(SIM_DESC sd)
+sim_io_get_errno (SIM_DESC sd)
{
return STATE_CALLBACK (sd)->get_errno (STATE_CALLBACK (sd));
}
int
-sim_io_close(SIM_DESC sd,
- int fd)
+sim_io_close (SIM_DESC sd,
+ int fd)
{
return STATE_CALLBACK (sd)->close (STATE_CALLBACK (sd), fd);
}
void
-sim_io_printf(SIM_DESC sd,
- const char *fmt,
- ...)
+sim_io_printf (SIM_DESC sd,
+ const char *fmt,
+ ...)
{
va_list ap;
- va_start(ap, fmt);
+ va_start (ap, fmt);
STATE_CALLBACK (sd)->vprintf_filtered (STATE_CALLBACK (sd), fmt, ap);
- va_end(ap);
+ va_end (ap);
}
void
-sim_io_vprintf(SIM_DESC sd,
- const char *fmt,
- va_list ap)
+sim_io_vprintf (SIM_DESC sd,
+ const char *fmt,
+ va_list ap)
{
STATE_CALLBACK (sd)->vprintf_filtered (STATE_CALLBACK (sd), fmt, ap);
}
void
-sim_io_eprintf(SIM_DESC sd,
- const char *fmt,
- ...)
+sim_io_eprintf (SIM_DESC sd,
+ const char *fmt,
+ ...)
{
va_list ap;
- va_start(ap, fmt);
+ va_start (ap, fmt);
STATE_CALLBACK (sd)->evprintf_filtered (STATE_CALLBACK (sd), fmt, ap);
- va_end(ap);
+ va_end (ap);
}
void
-sim_io_evprintf(SIM_DESC sd,
- const char *fmt,
- va_list ap)
+sim_io_evprintf (SIM_DESC sd,
+ const char *fmt,
+ va_list ap)
{
STATE_CALLBACK (sd)->evprintf_filtered (STATE_CALLBACK (sd), fmt, ap);
}
void
-sim_io_error(SIM_DESC sd,
- const char *fmt,
- ...)
+sim_io_error (SIM_DESC sd,
+ const char *fmt,
+ ...)
{
if (sd == NULL || STATE_CALLBACK (sd) == NULL) {
va_list ap;
- va_start(ap, fmt);
+ va_start (ap, fmt);
vfprintf (stderr, fmt, ap);
- va_end(ap);
+ va_end (ap);
fprintf (stderr, "\n");
abort ();
}
else {
va_list ap;
- va_start(ap, fmt);
+ va_start (ap, fmt);
STATE_CALLBACK (sd)->evprintf_filtered (STATE_CALLBACK (sd), fmt, ap);
- va_end(ap);
+ va_end (ap);
STATE_CALLBACK (sd)->error (STATE_CALLBACK (sd), "");
}
}
void
-sim_io_poll_quit(SIM_DESC sd)
+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);
+ if (STATE_CALLBACK (sd)->poll_quit != NULL && poll_quit_count-- < 0)
+ {
+ poll_quit_count = POLL_QUIT_INTERVAL;
+ if (STATE_CALLBACK (sd)->poll_quit (STATE_CALLBACK (sd)))
+ sim_stop (sd);
+ }
}
return sim_io_read (sd, sim_io_fd, buf, sizeof_buf);
#endif
}
+
+int
+sim_io_stat (SIM_DESC sd, const char *path, struct stat *buf)
+{
+ return STATE_CALLBACK (sd)->to_stat (STATE_CALLBACK (sd), path, buf);
+}
+
+int
+sim_io_fstat (SIM_DESC sd, int fd, struct stat *buf)
+{
+ return STATE_CALLBACK (sd)->to_fstat (STATE_CALLBACK (sd), fd, buf);
+}