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* infcmd.c (attach_command_post_wait)

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(attach_command_continuation): New.
	(attach_command): Support background async execution, and async
	execution in synchronous mode.
This commit is contained in:
Pedro Alves 2008-03-17 17:30:29 +00:00
parent 5c3ce3f7ab
commit 9356cf8d06
2 changed files with 120 additions and 45 deletions
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7
gdb/ChangeLog
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@ -1,3 +1,10 @@
2008-03-17 Pedro Alves <pedro@codesourcery.com>
* infcmd.c (attach_command_post_wait)
(attach_command_continuation): New.
(attach_command): Support background async execution, and async
execution in synchronous mode.
2008-03-17 Daniel Jacobowitz <dan@codesourcery.com>
* stack.c (print_stack_frame, print_frame): Use RETURN_MASK_ERROR.

158
gdb/infcmd.c
View File

@ -1875,11 +1875,83 @@ vector_info (char *args, int from_tty)
This stops it cold in its tracks and allows us to start debugging it.
and wait for the trace-trap that results from attaching. */
static void
attach_command_post_wait (char *args, int from_tty, int async_exec)
{
char *exec_file;
char *full_exec_path = NULL;
stop_soon = NO_STOP_QUIETLY;
/* If no exec file is yet known, try to determine it from the
process itself. */
exec_file = (char *) get_exec_file (0);
if (!exec_file)
{
exec_file = target_pid_to_exec_file (PIDGET (inferior_ptid));
if (exec_file)
{
/* It's possible we don't have a full path, but rather just a
filename. Some targets, such as HP-UX, don't provide the
full path, sigh.
Attempt to qualify the filename against the source path.
(If that fails, we'll just fall back on the original
filename. Not much more we can do...)
*/
if (!source_full_path_of (exec_file, &full_exec_path))
full_exec_path = savestring (exec_file, strlen (exec_file));
exec_file_attach (full_exec_path, from_tty);
symbol_file_add_main (full_exec_path, from_tty);
}
}
else
{
reopen_exec_file ();
reread_symbols ();
}
/* Take any necessary post-attaching actions for this platform. */
target_post_attach (PIDGET (inferior_ptid));
post_create_inferior (&current_target, from_tty);
/* Install inferior's terminal modes. */
target_terminal_inferior ();
if (async_exec)
proceed ((CORE_ADDR) -1, TARGET_SIGNAL_0, 0);
else
{
if (target_can_async_p ())
async_enable_stdin ();
normal_stop ();
if (deprecated_attach_hook)
deprecated_attach_hook ();
}
}
static void
attach_command_continuation (struct continuation_arg *arg)
{
char *args;
int from_tty;
int async_exec;
args = (char *) arg->data.pointer;
from_tty = arg->next->data.integer;
async_exec = arg->next->next->data.integer;
attach_command_post_wait (args, from_tty, async_exec);
}
void
attach_command (char *args, int from_tty)
{
char *exec_file;
char *full_exec_path = NULL;
int async_exec = 0;
dont_repeat (); /* Not for the faint of heart */
@ -1913,6 +1985,24 @@ attach_command (char *args, int from_tty)
*/
clear_solib ();
if (args)
{
async_exec = strip_bg_char (&args);
/* If we get a request for running in the bg but the target
doesn't support it, error out. */
if (async_exec && !target_can_async_p ())
error (_("Asynchronous execution not supported on this target."));
}
/* If we don't get a request of running in the bg, then we need
to simulate synchronous (fg) execution. */
if (!async_exec && target_can_async_p ())
{
/* Simulate synchronous execution */
async_disable_stdin ();
}
target_attach (args, from_tty);
/* Set up the "saved terminal modes" of the inferior
@ -1932,54 +2022,32 @@ attach_command (char *args, int from_tty)
way for handle_inferior_event to reset the stop_signal variable
after an attach, and this is what STOP_QUIETLY_NO_SIGSTOP is for. */
stop_soon = STOP_QUIETLY_NO_SIGSTOP;
if (target_can_async_p ())
{
/* sync_execution mode. Wait for stop. */
struct continuation_arg *arg1, *arg2, *arg3;
arg1 =
(struct continuation_arg *) xmalloc (sizeof (struct continuation_arg));
arg2 =
(struct continuation_arg *) xmalloc (sizeof (struct continuation_arg));
arg3 =
(struct continuation_arg *) xmalloc (sizeof (struct continuation_arg));
arg1->next = arg2;
arg2->next = arg3;
arg3->next = NULL;
arg1->data.pointer = args;
arg2->data.integer = from_tty;
arg3->data.integer = async_exec;
add_continuation (attach_command_continuation, arg1);
return;
}
wait_for_inferior (0);
stop_soon = NO_STOP_QUIETLY;
#endif
/*
* If no exec file is yet known, try to determine it from the
* process itself.
*/
exec_file = (char *) get_exec_file (0);
if (!exec_file)
{
exec_file = target_pid_to_exec_file (PIDGET (inferior_ptid));
if (exec_file)
{
/* It's possible we don't have a full path, but rather just a
filename. Some targets, such as HP-UX, don't provide the
full path, sigh.
Attempt to qualify the filename against the source path.
(If that fails, we'll just fall back on the original
filename. Not much more we can do...)
*/
if (!source_full_path_of (exec_file, &full_exec_path))
full_exec_path = savestring (exec_file, strlen (exec_file));
exec_file_attach (full_exec_path, from_tty);
symbol_file_add_main (full_exec_path, from_tty);
}
}
else
{
reopen_exec_file ();
reread_symbols ();
}
/* Take any necessary post-attaching actions for this platform.
*/
target_post_attach (PIDGET (inferior_ptid));
post_create_inferior (&current_target, from_tty);
/* Install inferior's terminal modes. */
target_terminal_inferior ();
normal_stop ();
if (deprecated_attach_hook)
deprecated_attach_hook ();
attach_command_post_wait (args, from_tty, async_exec);
}
/*