static void
metrowerks_step_command (char *args, int from_tty)
{
int async_exec = 0;
CORE_ADDR range_start = 0;
CORE_ADDR range_stop = 0;
int step_into = 0;
int num_args = 0;
char **argv = NULL;
if (args != NULL)
async_exec = strip_bg_char (&args);
if (event_loop_p && async_exec && !target_can_async_p ())
error ("Asynchronous execution not supported on this target.");
/* If we do NOT get a request of running in the bg, then we need
* to simulate synchronous (fg) execution. */
if (event_loop_p && !async_exec && target_can_async_p ())
{
async_disable_stdin ();
}
argv = buildargv (args);
if (argv == NULL)
{
num_args = 0;
}
else
{
num_args = 0;
while (argv[num_args] != NULL)
num_args++;
}
if (num_args != 3 && num_args != 5)
error ("Usage: metrowerks-step <start> <stop> <step-into> ?<func_start> <func_end>?");
range_start = strtoul (argv[0], NULL, 16);
range_stop = strtoul (argv[1], NULL, 16);
step_into = strtoul (argv[2], NULL, 16);
if (num_args == 5)
{
metrowerks_step_func_start = strtoul (argv[3], NULL, 16);
metrowerks_step_func_end = strtoul (argv[4], NULL, 16);
}
else
{
metrowerks_step_func_start = 0;
metrowerks_step_func_end = 0;
}
if (!target_has_execution)
error ("The program is not being run.");
metrowerks_step (range_start, range_stop, step_into);
}
static struct gdb_exception
run_inferior_call (struct thread_info *call_thread, CORE_ADDR real_pc)
{
volatile struct gdb_exception e;
int saved_in_infcall = call_thread->control.in_infcall;
ptid_t call_thread_ptid = call_thread->ptid;
call_thread->control.in_infcall = 1;
clear_proceed_status ();
disable_watchpoints_before_interactive_call_start ();
/* We want stop_registers, please... */
call_thread->control.proceed_to_finish = 1;
TRY_CATCH (e, RETURN_MASK_ALL)
{
proceed (real_pc, TARGET_SIGNAL_0, 0);
/* Inferior function calls are always synchronous, even if the
target supports asynchronous execution. Do here what
`proceed' itself does in sync mode. */
if (target_can_async_p () && is_running (inferior_ptid))
{
wait_for_inferior ();
normal_stop ();
}
}
static struct gdb_exception
run_inferior_call (struct thread_info *call_thread, CORE_ADDR real_pc)
{
volatile struct gdb_exception e;
int saved_in_infcall = call_thread->control.in_infcall;
ptid_t call_thread_ptid = call_thread->ptid;
int saved_sync_execution = sync_execution;
/* Infcalls run synchronously, in the foreground. */
if (target_can_async_p ())
sync_execution = 1;
call_thread->control.in_infcall = 1;
clear_proceed_status ();
disable_watchpoints_before_interactive_call_start ();
/* We want stop_registers, please... */
call_thread->control.proceed_to_finish = 1;
TRY_CATCH (e, RETURN_MASK_ALL)
{
int was_sync = sync_execution;
proceed (real_pc, GDB_SIGNAL_0, 0);
/* Inferior function calls are always synchronous, even if the
target supports asynchronous execution. Do here what
`proceed' itself does in sync mode. */
if (target_can_async_p ())
{
wait_for_inferior ();
normal_stop ();
/* If GDB was previously in sync execution mode, then ensure
that it remains so. normal_stop calls
async_enable_stdin, so reset it again here. In other
cases, stdin will be re-enabled by
inferior_event_handler, when an exception is thrown. */
if (was_sync)
async_disable_stdin ();
}
}
void
inferior_event_handler (enum inferior_event_type event_type,
gdb_client_data client_data)
{
switch (event_type)
{
case INF_REG_EVENT:
fetch_inferior_event (client_data);
break;
case INF_EXEC_COMPLETE:
if (!non_stop)
{
/* Unregister the inferior from the event loop. This is done
so that when the inferior is not running we don't get
distracted by spurious inferior output. */
if (target_has_execution && target_can_async_p ())
target_async (0);
}
/* Do all continuations associated with the whole inferior (not
a particular thread). */
if (!ptid_equal (inferior_ptid, null_ptid))
do_all_inferior_continuations (0);
/* When running a command list (from a user command, say), these
are only run when the command list is all done. */
if (interpreter_async)
{
check_frame_language_change ();
/* Don't propagate breakpoint commands errors. Either we're
stopping or some command resumes the inferior. The user will
be informed. */
TRY
{
bpstat_do_actions ();
}
CATCH (e, RETURN_MASK_ALL)
{
exception_print (gdb_stderr, e);
}
END_CATCH
}
break;
default:
printf_unfiltered (_("Event type not recognized.\n"));
break;
}
/* Quit GDB if SIGTERM is received.
GDB would quit anyway, but this way it will clean up properly. */
void
handle_sigterm (int sig)
{
signal (sig, handle_sigterm);
/* Call quit_force in a signal safe way.
quit_force itself is not signal safe. */
if (target_can_async_p ())
mark_async_signal_handler (async_sigterm_token);
else
{
sync_quit_force_run = 1;
set_quit_flag ();
}
}
/* NOTE: 1999-04-30 This is the asynchronous version of the command_loop
function. The command_loop function will be obsolete when we
switch to use the event loop at every execution of gdb. */
static void
command_handler (char *command)
{
struct cleanup *old_chain;
int stdin_is_tty = ISATTY (stdin);
struct continuation_arg *arg1;
struct continuation_arg *arg2;
long time_at_cmd_start;
#ifdef HAVE_SBRK
long space_at_cmd_start = 0;
#endif
extern int display_time;
extern int display_space;
quit_flag = 0;
if (instream == stdin && stdin_is_tty)
reinitialize_more_filter ();
old_chain = make_cleanup (null_cleanup, 0);
/* If readline returned a NULL command, it means that the
connection with the terminal is gone. This happens at the
end of a testsuite run, after Expect has hung up
but GDB is still alive. In such a case, we just quit gdb
killing the inferior program too. */
if (command == 0)
quit_command ((char *) 0, stdin == instream);
time_at_cmd_start = get_run_time ();
if (display_space)
{
#ifdef HAVE_SBRK
char *lim = (char *) sbrk (0);
space_at_cmd_start = lim - lim_at_start;
#endif
}
execute_command (command, instream == stdin);
/* Set things up for this function to be compete later, once the
execution has completed, if we are doing an execution command,
otherwise, just go ahead and finish. */
if (target_can_async_p () && target_executing)
{
arg1 =
(struct continuation_arg *) xmalloc (sizeof (struct continuation_arg));
arg2 =
(struct continuation_arg *) xmalloc (sizeof (struct continuation_arg));
arg1->next = arg2;
arg2->next = NULL;
arg1->data.longint = time_at_cmd_start;
#ifdef HAVE_SBRK
arg2->data.longint = space_at_cmd_start;
#endif
add_continuation (command_line_handler_continuation, arg1);
}
/* Do any commands attached to breakpoint we stopped at. Only if we
are always running synchronously. Or if we have just executed a
command that doesn't start the target. */
if (!target_can_async_p () || !target_executing)
{
bpstat_do_actions (&stop_bpstat);
do_cleanups (old_chain);
if (display_time)
{
long cmd_time = get_run_time () - time_at_cmd_start;
printf_unfiltered (_("Command execution time: %ld.%06ld\n"),
cmd_time / 1000000, cmd_time % 1000000);
}
if (display_space)
{
#ifdef HAVE_SBRK
char *lim = (char *) sbrk (0);
long space_now = lim - lim_at_start;
long space_diff = space_now - space_at_cmd_start;
printf_unfiltered (_("Space used: %ld (%c%ld for this command)\n"),
space_now,
(space_diff >= 0 ? '+' : '-'),
space_diff);
#endif
}
}
}
enum mi_cmd_result
mi_execute_async_cli_command (char *mi, char *args, int from_tty)
{
struct cleanup *old_cleanups;
char *run;
char *async_args;
if (target_can_async_p ())
{
async_args = (char *) xmalloc (strlen (args) + 2);
make_exec_cleanup (free, async_args);
strcpy (async_args, args);
strcat (async_args, "&");
run = xstrprintf ("%s %s", mi, async_args);
make_exec_cleanup (free, run);
add_continuation (mi_exec_async_cli_cmd_continuation, NULL);
old_cleanups = NULL;
}
else
{
run = xstrprintf ("%s %s", mi, args);
old_cleanups = make_cleanup (xfree, run);
}
if (!target_can_async_p ())
{
/* NOTE: For synchronous targets asynchronous behavour is faked by
printing out the GDB prompt before we even try to execute the
command. */
if (last_async_command)
fputs_unfiltered (last_async_command, raw_stdout);
fputs_unfiltered ("^running\n", raw_stdout);
fputs_unfiltered ("(gdb) \n", raw_stdout);
gdb_flush (raw_stdout);
}
else
{
/* FIXME: cagney/1999-11-29: Printing this message before
calling execute_command is wrong. It should only be printed
once gdb has confirmed that it really has managed to send a
run command to the target. */
if (last_async_command)
fputs_unfiltered (last_async_command, raw_stdout);
fputs_unfiltered ("^running\n", raw_stdout);
}
execute_command ( /*ui */ run, 0 /*from_tty */ );
if (!target_can_async_p ())
{
/* Do this before doing any printing. It would appear that some
print code leaves garbage around in the buffer. */
do_cleanups (old_cleanups);
/* If the target was doing the operation synchronously we fake
the stopped message. */
if (last_async_command)
fputs_unfiltered (last_async_command, raw_stdout);
fputs_unfiltered ("*stopped", raw_stdout);
mi_out_put (uiout, raw_stdout);
mi_out_rewind (uiout);
fputs_unfiltered ("\n", raw_stdout);
return MI_CMD_QUIET;
}
return MI_CMD_DONE;
}
static void
captured_mi_execute_command (struct ui_out *uiout, void *data)
{
struct captured_mi_execute_command_args *args =
(struct captured_mi_execute_command_args *) data;
struct mi_parse *context = args->command;
switch (context->op)
{
case MI_COMMAND:
/* A MI command was read from the input stream */
if (mi_debug_p)
/* FIXME: gdb_???? */
fprintf_unfiltered (raw_stdout, " token=`%s' command=`%s' args=`%s'\n",
context->token, context->command, context->args);
/* FIXME: cagney/1999-09-25: Rather than this convoluted
condition expression, each function should return an
indication of what action is required and then switch on
that. */
args->action = EXECUTE_COMMAND_DISPLAY_PROMPT;
args->rc = mi_cmd_execute (context);
if (!target_can_async_p () || !target_executing)
{
/* print the result if there were no errors
Remember that on the way out of executing a command, you have
to directly use the mi_interp's uiout, since the command could
have reset the interpreter, in which case the current uiout
will most likely crash in the mi_out_* routines. */
if (args->rc == MI_CMD_DONE)
{
fputs_unfiltered (context->token, raw_stdout);
fputs_unfiltered ("^done", raw_stdout);
mi_out_put (uiout, raw_stdout);
mi_out_rewind (uiout);
fputs_unfiltered ("\n", raw_stdout);
}
else if (args->rc == MI_CMD_ERROR)
{
if (mi_error_message)
{
fputs_unfiltered (context->token, raw_stdout);
fputs_unfiltered ("^error,msg=\"", raw_stdout);
fputstr_unfiltered (mi_error_message, '"', raw_stdout);
xfree (mi_error_message);
fputs_unfiltered ("\"\n", raw_stdout);
}
mi_out_rewind (uiout);
}
else
mi_out_rewind (uiout);
}
else if (sync_execution)
{
/* Don't print the prompt. We are executing the target in
synchronous mode. */
args->action = EXECUTE_COMMAND_SUPRESS_PROMPT;
return;
}
break;
case CLI_COMMAND:
{
char *argv[2];
/* A CLI command was read from the input stream. */
/* This "feature" will be removed as soon as we have a
complete set of mi commands. */
/* Echo the command on the console. */
fprintf_unfiltered (gdb_stdlog, "%s\n", context->command);
/* Call the "console" interpreter. */
argv[0] = "console";
argv[1] = context->command;
args->rc = mi_cmd_interpreter_exec ("-interpreter-exec", argv, 2);
/* If we changed interpreters, DON'T print out anything. */
if (current_interp_named_p (INTERP_MI)
|| current_interp_named_p (INTERP_MI1)
|| current_interp_named_p (INTERP_MI2)
|| current_interp_named_p (INTERP_MI3))
{
if (args->rc == MI_CMD_DONE)
{
fputs_unfiltered (context->token, raw_stdout);
fputs_unfiltered ("^done", raw_stdout);
mi_out_put (uiout, raw_stdout);
mi_out_rewind (uiout);
fputs_unfiltered ("\n", raw_stdout);
args->action = EXECUTE_COMMAND_DISPLAY_PROMPT;
}
else if (args->rc == MI_CMD_ERROR)
{
if (mi_error_message)
{
fputs_unfiltered (context->token, raw_stdout);
fputs_unfiltered ("^error,msg=\"", raw_stdout);
fputstr_unfiltered (mi_error_message, '"', raw_stdout);
xfree (mi_error_message);
fputs_unfiltered ("\"\n", raw_stdout);
}
mi_out_rewind (uiout);
}
else
mi_out_rewind (uiout);
}
break;
}
}
return;
}
static int
async_background_execution_p (void)
{
return (target_can_async_p () && !sync_execution);
}