/* Top level stuff for GDB, the GNU debugger.
- Copyright 1986, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 1997
+ Copyright 1986, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 1998
Free Software Foundation, Inc.
This file is part of GDB.
static void show_endian PARAMS ((char *, int));
-extern void set_architecture PARAMS ((char *, int));
+static void set_architecture PARAMS ((char *, int));
static void show_architecture PARAMS ((char *, int));
int (*query_hook) PARAMS ((const char *, va_list));
+/* Replaces most of warning. */
+
+void (*warning_hook) PARAMS ((const char *, va_list));
+
/* Called from gdb_flush to flush output. */
void (*flush_hook) PARAMS ((FILE *stream));
void (*registers_changed_hook) PARAMS ((void));
+/* tell the GUI someone changed the PC */
+void (*pc_changed_hook) PARAMS ((void));
+
/* Called when going to wait for the target. Usually allows the GUI to run
while waiting for target events. */
\f
/* Where to go for return_to_top_level (RETURN_ERROR). */
-jmp_buf error_return;
+SIGJMP_BUF error_return;
/* Where to go for return_to_top_level (RETURN_QUIT). */
-jmp_buf quit_return;
+SIGJMP_BUF quit_return;
/* Return for reason REASON. This generally gets back to the command
loop, but can be caught via catch_errors. */
break;
}
- (NORETURN void) longjmp
+ (NORETURN void) SIGLONGJMP
(reason == RETURN_ERROR ? error_return : quit_return, 1);
}
char *errstring;
return_mask mask;
{
- jmp_buf saved_error;
- jmp_buf saved_quit;
- jmp_buf tmp_jmp;
+ SIGJMP_BUF saved_error;
+ SIGJMP_BUF saved_quit;
+ SIGJMP_BUF tmp_jmp;
int val;
struct cleanup *saved_cleanup_chain;
char *saved_error_pre_print;
if (mask & RETURN_MASK_ERROR)
{
- memcpy ((char *)saved_error, (char *)error_return, sizeof (jmp_buf));
+ memcpy ((char *)saved_error, (char *)error_return, sizeof (SIGJMP_BUF));
error_pre_print = errstring;
}
if (mask & RETURN_MASK_QUIT)
{
- memcpy (saved_quit, quit_return, sizeof (jmp_buf));
+ memcpy (saved_quit, quit_return, sizeof (SIGJMP_BUF));
quit_pre_print = errstring;
}
- if (setjmp (tmp_jmp) == 0)
+ if (SIGSETJMP (tmp_jmp) == 0)
{
if (mask & RETURN_MASK_ERROR)
- memcpy (error_return, tmp_jmp, sizeof (jmp_buf));
+ memcpy (error_return, tmp_jmp, sizeof (SIGJMP_BUF));
if (mask & RETURN_MASK_QUIT)
- memcpy (quit_return, tmp_jmp, sizeof (jmp_buf));
+ memcpy (quit_return, tmp_jmp, sizeof (SIGJMP_BUF));
val = (*func) (args);
}
else
if (mask & RETURN_MASK_ERROR)
{
- memcpy (error_return, saved_error, sizeof (jmp_buf));
+ memcpy (error_return, saved_error, sizeof (SIGJMP_BUF));
error_pre_print = saved_error_pre_print;
}
if (mask & RETURN_MASK_QUIT)
{
- memcpy (quit_return, saved_quit, sizeof (jmp_buf));
+ memcpy (quit_return, saved_quit, sizeof (SIGJMP_BUF));
quit_pre_print = saved_quit_pre_print;
}
return val;
do_nothing (signo)
int signo;
{
+ /* Under System V the default disposition of a signal is reinstated after
+ the signal is caught and delivered to an application process. On such
+ systems one must restore the replacement signal handler if one wishes
+ to continue handling the signal in one's program. On BSD systems this
+ is not needed but it is harmless, and it simplifies the code to just do
+ it unconditionally. */
+ signal (signo, do_nothing);
}
static void
/* Second line is a copyright notice. */
- fprintf_filtered (stream, "Copyright 1997 Free Software Foundation, Inc.\n");
+ fprintf_filtered (stream, "Copyright 1998 Free Software Foundation, Inc.\n");
/* Following the copyright is a brief statement that the program is
free software, that users are free to copy and change it on
printf_unfiltered ("%s", prompt);
gdb_flush (gdb_stdout);
}
+
+/* This replaces the above for the frontends: it returns a pointer
+ to the prompt. */
+char *
+get_prompt ()
+{
+ return prompt;
+}
\f
+/* If necessary, make the user confirm that we should quit. Return
+ non-zero if we should quit, zero if we shouldn't. */
+
+int
+quit_confirm ()
+{
+ if (inferior_pid != 0 && target_has_execution)
+ {
+ char *s;
+
+ /* This is something of a hack. But there's no reliable way to
+ see if a GUI is running. The `use_windows' variable doesn't
+ cut it. */
+ if (init_ui_hook)
+ s = "A debugging session is active.\nDo you still want to close the debugger?";
+ else if (attach_flag)
+ s = "The program is running. Quit anyway (and detach it)? ";
+ else
+ s = "The program is running. Exit anyway? ";
+
+ if (! query (s))
+ return 0;
+ }
+
+ return 1;
+}
+
+/* Quit without asking for confirmation. */
+
void
-quit_command (args, from_tty)
+quit_force (args, from_tty)
char *args;
int from_tty;
{
if (inferior_pid != 0 && target_has_execution)
{
if (attach_flag)
- {
- if (query ("The program is running. Quit anyway (and detach it)? "))
- target_detach (args, from_tty);
- else
- error ("Not confirmed.");
- }
+ target_detach (args, from_tty);
else
- {
- if (query ("The program is running. Quit anyway (and kill it)? "))
- target_kill ();
- else
- error ("Not confirmed.");
- }
+ target_kill ();
}
+
/* UDI wants this, to kill the TIP. */
target_close (1);
exit (exit_code);
}
+/* Handle the quit command. */
+
+void
+quit_command (args, from_tty)
+ char *args;
+ int from_tty;
+{
+ if (! quit_confirm ())
+ error ("Not confirmed.");
+ quit_force (args, from_tty);
+}
+
/* Returns whether GDB is running on a terminal and whether the user
desires that questions be asked of them on that terminal. */
const bfd_arch_info_type *target_architecture = &bfd_default_arch_struct;
int (*target_architecture_hook) PARAMS ((const bfd_arch_info_type *ap));
-/* Called if the user enters ``set architecture'' with or without an argument. */
-void
+static void
+set_arch (arch)
+ const bfd_arch_info_type *arch;
+{
+ /* FIXME: Is it compatible with gdb? */
+ /* Check with the target on the setting */
+ if (target_architecture_hook != NULL
+ && !target_architecture_hook (arch))
+ printf_unfiltered ("Target does not support `%s' architecture.\n",
+ arch->printable_name);
+ else
+ {
+ target_architecture_auto = 0;
+ target_architecture = arch;
+ }
+}
+
+
+/* Called if the user enters ``set architecture'' with or without an
+ argument. */
+static void
set_architecture (args, from_tty)
char *args;
int from_tty;
{
const bfd_arch_info_type *arch = bfd_scan_arch (args);
if (arch != NULL)
- {
- /* FIXME: Is it compatible with gdb? */
- /* Check with the target on the setting */
- if (target_architecture_hook != NULL
- && !target_architecture_hook (arch))
- printf_unfiltered ("Target does not support `%s' architecture.", args);
- else
- {
- target_architecture_auto = 0;
- target_architecture = arch;
- }
- }
+ set_arch (arch);
else
- {
- printf_unfiltered ("Architecture `%s' not reconized.\n", args);
- }
+ printf_unfiltered ("Architecture `%s' not reconized.\n", args);
}
}
}
}
+/* Set the architecture from arch/machine */
+void
+set_architecture_from_arch_mach (arch, mach)
+ enum bfd_architecture arch;
+ unsigned long mach;
+{
+ const bfd_arch_info_type *wanted = bfd_lookup_arch (arch, mach);
+ if (wanted != NULL)
+ set_arch (wanted);
+ else
+ fatal ("hardwired architecture/machine not reconized");
+}
+
+
/* Set the architecture from a BFD */
void
set_architecture_from_file (abfd)
projects / deliverable / binutils-gdb.git / blobdiff