static int
captured_command_loop (void *data)
{
struct ui *ui = current_ui;
/* Top-level execution commands can be run in the background from
here on. */
current_ui->async = 1;
/* Give the interpreter a chance to print a prompt, if necessary */
if (ui->prompt_state != PROMPT_BLOCKED)
interp_pre_command_loop (top_level_interpreter ());
/* Now it's time to start the event loop. */
start_event_loop ();
/* FIXME: cagney/1999-11-05: A correct command_loop() implementaton
would clean things up (restoring the cleanup chain) to the state
they were just prior to the call. Technically, this means that
the do_cleanups() below is redundant. Unfortunately, many FUNCs
are not that well behaved. do_cleanups should either be replaced
with a do_cleanups call (to cover the problem) or an assertion
check to detect bad FUNCs code. */
do_cleanups (all_cleanups ());
/* If the command_loop returned, normally (rather than threw an
error) we try to quit. If the quit is aborted, catch_errors()
which called this catch the signal and restart the command
loop. */
quit_command (NULL, ui->instream == ui->stdin_stream);
return 1;
}
void
throw_exception (struct gdb_exception exception)
{
prepare_to_throw_exception ();
do_cleanups (all_cleanups ());
#if GDB_XCPT == GDB_XCPT_SJMP
/* Jump to the containing catch_errors() call, communicating REASON
to that call via setjmp's return value. Note that REASON can't
be zero, by definition in defs.h. */
exceptions_state_mc (CATCH_THROWING);
current_catcher->exception = exception;
SIGLONGJMP (current_catcher->buf, exception.reason);
#else
if (exception.reason == RETURN_QUIT)
{
gdb_exception_RETURN_MASK_QUIT ex;
gdb_exception_sliced_copy (&ex, &exception);
throw ex;
}
else if (exception.reason == RETURN_ERROR)
{
gdb_exception_RETURN_MASK_ERROR ex;
gdb_exception_sliced_copy (&ex, &exception);
throw ex;
}
else
gdb_assert_not_reached ("invalid return reason");
#endif
}
/*
* Used by gdb_interface() to catch gdb-related errors, if desired.
*/
void
gdb_error_hook(void)
{
char buf1[BUFSIZE];
char buf2[BUFSIZE];
int buffers;
if (CRASHDEBUG(2)) {
sprintf(buf2, "\n");
if (CRASHDEBUG(5) && (buffers = get_embedded()))
sprintf(buf2, "(%d buffer%s in use)\n",
buffers, buffers > 1 ? "s" : "");
fprintf(stderr, "%s: returned via gdb_error_hook %s",
gdb_command_string(pc->cur_gdb_cmd, buf1, TRUE), buf2);
console("%s: returned via gdb_error_hook %s",
gdb_command_string(pc->cur_gdb_cmd, buf1, TRUE), buf2);
}
#ifdef GDB_7_6
do_cleanups(all_cleanups());
#else
do_cleanups(NULL);
#endif
longjmp(pc->gdb_interface_env, 1);
}
void
exception_rethrow (void)
{
/* Run this scope's cleanups before re-throwing to the next
outermost scope. */
do_cleanups (all_cleanups ());
throw;
}
void
throw_exception_sjlj (struct gdb_exception exception)
{
do_cleanups (all_cleanups ());
/* Jump to the nearest CATCH_SJLJ block, communicating REASON to
that call via setjmp's return value. Note that REASON can't be
zero, by definition in common-exceptions.h. */
exceptions_state_mc (CATCH_THROWING);
current_catcher->exception = exception;
longjmp (current_catcher->buf, exception.reason);
}
void
throw_exception (struct gdb_exception exception)
{
clear_quit_flag ();
immediate_quit = 0;
do_cleanups (all_cleanups ());
/* Jump to the containing catch_errors() call, communicating REASON
to that call via setjmp's return value. Note that REASON can't
be zero, by definition in defs.h. */
exceptions_state_mc (CATCH_THROWING);
*current_catcher->exception = exception;
EXCEPTIONS_SIGLONGJMP (current_catcher->buf, exception.reason);
}
static ATTRIBUTE_NORETURN void
throw_exception_cxx (struct gdb_exception exception)
{
do_cleanups (all_cleanups ());
if (exception.reason == RETURN_QUIT)
{
gdb_exception_RETURN_MASK_QUIT ex;
gdb_exception_sliced_copy (&ex, &exception);
throw ex;
}
else if (exception.reason == RETURN_ERROR)
{
gdb_exception_RETURN_MASK_ERROR ex;
gdb_exception_sliced_copy (&ex, &exception);
throw ex;
}
else
gdb_assert_not_reached ("invalid return reason");
}
static int
captured_command_loop (void *data)
{
/* Top-level execution commands can be run in the background from
here on. */
interpreter_async = 1;
current_interp_command_loop ();
/* FIXME: cagney/1999-11-05: A correct command_loop() implementaton
would clean things up (restoring the cleanup chain) to the state
they were just prior to the call. Technically, this means that
the do_cleanups() below is redundant. Unfortunately, many FUNCs
are not that well behaved. do_cleanups should either be replaced
with a do_cleanups call (to cover the problem) or an assertion
check to detect bad FUNCs code. */
do_cleanups (all_cleanups ());
/* If the command_loop returned, normally (rather than threw an
error) we try to quit. If the quit is aborted, catch_errors()
which called this catch the signal and restart the command
loop. */
quit_command (NULL, instream == stdin);
return 1;
}
