int program_signals[GDB_SIGNAL_LAST];
int program_signals_p;
-jmp_buf toplevel;
-
/* The PID of the originally created or attached inferior. Used to
send signals to the process when GDB sends us an asynchronous interrupt
(user hitting Control-C in the client), and to wait for the child to exit
for_each_inferior (&all_processes, detach_or_kill_inferior_callback);
}
-int
-main (int argc, char *argv[])
+/* Value that will be passed to exit(3) when gdbserver exits. */
+static int exit_code;
+
+/* Cleanup version of detach_or_kill_for_exit. */
+
+static void
+detach_or_kill_for_exit_cleanup (void *ignore)
+{
+ volatile struct gdb_exception exception;
+
+ TRY_CATCH (exception, RETURN_MASK_ALL)
+ {
+ detach_or_kill_for_exit ();
+ }
+
+ if (exception.reason < 0)
+ {
+ fflush (stdout);
+ fprintf (stderr, "Detach or kill failed: %s\n", exception.message);
+ exit_code = 1;
+ }
+}
+
+/* Main function. This is called by the real "main" function,
+ wrapped in a TRY_CATCH that handles any uncaught exceptions. */
+
+static void ATTRIBUTE_NORETURN
+captured_main (int argc, char *argv[])
{
int bad_attach;
int pid;
continue;
}
- if (setjmp (toplevel))
- {
- fprintf (stderr, "Exiting\n");
- exit (1);
- }
-
port = *next_arg;
next_arg++;
if (port == NULL || (!attach && !multi_mode && *next_arg == NULL))
last_status.value.integer = 0;
last_ptid = minus_one_ptid;
}
+ make_cleanup (detach_or_kill_for_exit_cleanup, NULL);
initialize_notif ();
shared library event" notice on gdb side. */
dlls_changed = 0;
- if (setjmp (toplevel))
- {
- /* If something fails and longjmps while detaching or killing
- inferiors, we'd end up here again, stuck in an infinite loop
- trap. Be sure that if that happens, we exit immediately
- instead. */
- if (setjmp (toplevel) == 0)
- detach_or_kill_for_exit ();
- else
- fprintf (stderr, "Detach or kill failed. Exiting\n");
- exit (1);
- }
-
if (last_status.kind == TARGET_WAITKIND_EXITED
|| last_status.kind == TARGET_WAITKIND_SIGNALLED)
was_running = 0;
was_running = 1;
if (!was_running && !multi_mode)
- {
- fprintf (stderr, "No program to debug. GDBserver exiting.\n");
- exit (1);
- }
+ error ("No program to debug");
while (1)
{
+ volatile struct gdb_exception exception;
+
noack_mode = 0;
multi_process = 0;
/* Be sure we're out of tfind mode. */
remote_open (port);
- if (setjmp (toplevel) != 0)
+ TRY_CATCH (exception, RETURN_MASK_ERROR)
{
- /* An error occurred. */
- if (response_needed)
- {
- write_enn (own_buf);
- putpkt (own_buf);
- }
- }
-
- /* Wait for events. This will return when all event sources are
- removed from the event loop. */
- start_event_loop ();
+ /* Wait for events. This will return when all event sources
+ are removed from the event loop. */
+ start_event_loop ();
- /* If an exit was requested (using the "monitor exit" command),
- terminate now. The only other way to get here is for
- getpkt to fail; close the connection and reopen it at the
- top of the loop. */
+ /* If an exit was requested (using the "monitor exit"
+ command), terminate now. The only other way to get
+ here is for getpkt to fail; close the connection
+ and reopen it at the top of the loop. */
- if (exit_requested || run_once)
- {
- /* If something fails and longjmps while detaching or
- killing inferiors, we'd end up here again, stuck in an
- infinite loop trap. Be sure that if that happens, we
- exit immediately instead. */
- if (setjmp (toplevel) == 0)
- {
- detach_or_kill_for_exit ();
- exit (0);
- }
- else
- {
- fprintf (stderr, "Detach or kill failed. Exiting\n");
- exit (1);
- }
- }
+ if (exit_requested || run_once)
+ throw_quit ("Quit");
- fprintf (stderr,
- "Remote side has terminated connection. "
- "GDBserver will reopen the connection.\n");
+ fprintf (stderr,
+ "Remote side has terminated connection. "
+ "GDBserver will reopen the connection.\n");
- /* Get rid of any pending statuses. An eventual reconnection
- (by the same GDB instance or another) will refresh all its
- state from scratch. */
- discard_queued_stop_replies (-1);
- for_each_inferior (&all_threads, clear_pending_status_callback);
+ /* Get rid of any pending statuses. An eventual reconnection
+ (by the same GDB instance or another) will refresh all its
+ state from scratch. */
+ discard_queued_stop_replies (-1);
+ for_each_inferior (&all_threads,
+ clear_pending_status_callback);
- if (tracing)
- {
- if (disconnected_tracing)
+ if (tracing)
{
- /* Try to enable non-stop/async mode, so we we can both
- wait for an async socket accept, and handle async
- target events simultaneously. There's also no point
- either in having the target always stop all threads,
- when we're going to pass signals down without
- informing GDB. */
- if (!non_stop)
+ if (disconnected_tracing)
{
- if (start_non_stop (1))
- non_stop = 1;
+ /* Try to enable non-stop/async mode, so we we can
+ both wait for an async socket accept, and handle
+ async target events simultaneously. There's also
+ no point either in having the target always stop
+ all threads, when we're going to pass signals
+ down without informing GDB. */
+ if (!non_stop)
+ {
+ if (start_non_stop (1))
+ non_stop = 1;
- /* Detaching implicitly resumes all threads; simply
- disconnecting does not. */
+ /* Detaching implicitly resumes all threads;
+ simply disconnecting does not. */
+ }
+ }
+ else
+ {
+ fprintf (stderr,
+ "Disconnected tracing disabled; "
+ "stopping trace run.\n");
+ stop_tracing ();
}
}
- else
+ }
+
+ if (exception.reason == RETURN_ERROR)
+ {
+ if (response_needed)
{
- fprintf (stderr,
- "Disconnected tracing disabled; stopping trace run.\n");
- stop_tracing ();
+ write_enn (own_buf);
+ putpkt (own_buf);
}
}
}
}
+/* Main function. */
+
+int
+main (int argc, char *argv[])
+{
+ volatile struct gdb_exception exception;
+
+ TRY_CATCH (exception, RETURN_MASK_ALL)
+ {
+ captured_main (argc, argv);
+ }
+
+ /* captured_main should never return. */
+ gdb_assert (exception.reason < 0);
+
+ if (exception.reason == RETURN_ERROR)
+ {
+ fflush (stdout);
+ fprintf (stderr, "%s\n", exception.message);
+ fprintf (stderr, "Exiting\n");
+ exit_code = 1;
+ }
+
+ exit (exit_code);
+}
+
/* Skip PACKET until the next semi-colon (or end of string). */
static void
projects / deliverable / binutils-gdb.git / blobdiff