60250e8b18
* exceptions.h (enum return_reason, RETURN_MASK) (RETURN_MASK_QUIT, RETURN_MASK_ERROR, RETURN_MASK_ALL) (return_mask, throw_exception, catch_exceptions_ftype) (catch_exceptions_with_msg, catch_errors_ftype, catch_errors) (catch_command_errors_ftype, catch_command_errors): Move to exceptions.h. * exceptions.c, exceptions.h: New files. * top.c: Do not include <setjmp.h>. (SIGJMP_BUF, SIGSETJMP, SIGLONGJMP, catch_return) (throw_exception, catcher, catch_exceptions) (catch_exceptions_with_msg, struct catch_errors_args) (do_catch_errors, catch_errors, struct captured_command_args) (do_captured_command, catch_command_errors): Move to exceptions.c. * wrapper.c, wince.c, win32-nat.c, utils.c: Include "exceptions.h". * tui/tui-interp.c, top.c, thread.c, symmisc.c: Ditto. * symfile-mem.c, stack.c, solib.c, rs6000-nat.c: Ditto. * remote-sds.c, remote-mips.c, remote-fileio.c: Ditto. * remote-e7000.c, objc-lang.c, ocd.c: Ditto. * remote.c, nto-procfs.c, monitor.c, mi/mi-main.c: Ditto. * main.c, m32r-rom.c, infrun.c, inf-loop.c: Ditto. * hppa-hpux-tdep.c, frame.c, event-top.c, event-loop.c: Ditto. * corelow.c, corefile.c, cli/cli-interp.c, breakpoint.c: Ditto. * ada-valprint.c, ada-lang.c: Ditto. * Makefile.in (HFILES_NO_SRCDIR, COMMON_OBS): Add exceptions.h and exceptions.o. Update all dependencies.
134 lines
4.0 KiB
C
134 lines
4.0 KiB
C
/* Handling of inferior events for the event loop for GDB, the GNU debugger.
|
|
Copyright 1999 Free Software Foundation, Inc.
|
|
Written by Elena Zannoni <ezannoni@cygnus.com> of Cygnus Solutions.
|
|
|
|
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 2 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, write to the Free Software
|
|
Foundation, Inc., 59 Temple Place - Suite 330,
|
|
Boston, MA 02111-1307, USA. */
|
|
|
|
#include "defs.h"
|
|
#include "inferior.h" /* For fetch_inferior_event. */
|
|
#include "target.h" /* For enum inferior_event_type. */
|
|
#include "event-loop.h"
|
|
#include "event-top.h"
|
|
#include "inf-loop.h"
|
|
#include "remote.h"
|
|
#include "exceptions.h"
|
|
|
|
static int fetch_inferior_event_wrapper (gdb_client_data client_data);
|
|
static void complete_execution (void);
|
|
|
|
void
|
|
inferior_event_handler_wrapper (gdb_client_data client_data)
|
|
{
|
|
inferior_event_handler (INF_QUIT_REQ, client_data);
|
|
}
|
|
|
|
/* General function to handle events in the inferior. So far it just
|
|
takes care of detecting errors reported by select() or poll(),
|
|
otherwise it assumes that all is OK, and goes on reading data from
|
|
the fd. This however may not always be what we want to do. */
|
|
void
|
|
inferior_event_handler (enum inferior_event_type event_type,
|
|
gdb_client_data client_data)
|
|
{
|
|
switch (event_type)
|
|
{
|
|
case INF_ERROR:
|
|
printf_unfiltered ("error detected from target.\n");
|
|
target_async (NULL, 0);
|
|
pop_target ();
|
|
discard_all_continuations ();
|
|
do_exec_error_cleanups (ALL_CLEANUPS);
|
|
break;
|
|
|
|
case INF_REG_EVENT:
|
|
/* Use catch errors for now, until the inner layers of
|
|
fetch_inferior_event (i.e. readchar) can return meaningful
|
|
error status. If an error occurs while getting an event from
|
|
the target, just get rid of the target. */
|
|
if (!catch_errors (fetch_inferior_event_wrapper,
|
|
client_data, "", RETURN_MASK_ALL))
|
|
{
|
|
target_async (NULL, 0);
|
|
pop_target ();
|
|
discard_all_continuations ();
|
|
do_exec_error_cleanups (ALL_CLEANUPS);
|
|
display_gdb_prompt (0);
|
|
}
|
|
break;
|
|
|
|
case INF_EXEC_COMPLETE:
|
|
/* Is there anything left to do for the command issued to
|
|
complete? */
|
|
do_all_continuations ();
|
|
/* Reset things after target has stopped for the async commands. */
|
|
complete_execution ();
|
|
break;
|
|
|
|
case INF_EXEC_CONTINUE:
|
|
/* Is there anything left to do for the command issued to
|
|
complete? */
|
|
do_all_intermediate_continuations ();
|
|
break;
|
|
|
|
case INF_QUIT_REQ:
|
|
/* FIXME: ezannoni 1999-10-04. This call should really be a
|
|
target vector entry, so that it can be used for any kind of
|
|
targets. */
|
|
async_remote_interrupt_twice (NULL);
|
|
break;
|
|
|
|
case INF_TIMER:
|
|
default:
|
|
printf_unfiltered ("Event type not recognized.\n");
|
|
break;
|
|
}
|
|
}
|
|
|
|
static int
|
|
fetch_inferior_event_wrapper (gdb_client_data client_data)
|
|
{
|
|
fetch_inferior_event (client_data);
|
|
return 1;
|
|
}
|
|
|
|
/* Reset proper settings after an asynchronous command has finished.
|
|
If the execution command was in synchronous mode, register stdin
|
|
with the event loop, and reset the prompt. */
|
|
|
|
static void
|
|
complete_execution (void)
|
|
{
|
|
target_executing = 0;
|
|
|
|
/* 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. */
|
|
target_async (NULL, 0);
|
|
|
|
if (sync_execution)
|
|
{
|
|
do_exec_error_cleanups (ALL_CLEANUPS);
|
|
display_gdb_prompt (0);
|
|
}
|
|
else
|
|
{
|
|
if (exec_done_display_p)
|
|
printf_unfiltered ("completed.\n");
|
|
}
|
|
}
|