/* Top level stuff for GDB, the GNU debugger.
- Copyright 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996
+ Copyright 1986, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 1998
Free Software Foundation, Inc.
This file is part of GDB.
#include "top.h"
/* readline include files */
-#include "readline.h"
-#include "history.h"
+#include <readline/readline.h>
+#include <readline/history.h>
/* readline defines this. */
#undef savestring
static void stop_sig PARAMS ((int));
#endif
-static void disconnect PARAMS ((int));
-
static char * line_completion_function PARAMS ((char *, int, char *, int));
static char * readline_line_completion_function PARAMS ((char *, int));
static void set_verbose PARAMS ((char *, int, struct cmd_list_element *));
-#ifdef TARGET_BYTE_ORDER_SELECTABLE
-
-static void set_endian PARAMS ((char *, int));
-
-static void set_endian_big PARAMS ((char *, int));
-
-static void set_endian_little PARAMS ((char *, int));
-
-static void set_endian_auto PARAMS ((char *, int));
-
-static void show_endian PARAMS ((char *, int));
-
-#endif
-
static void show_history PARAMS ((char *, int));
static void set_history PARAMS ((char *, int));
static void do_nothing PARAMS ((int));
-static int quit_cover PARAMS ((char *));
+#ifdef SIGHUP
+static int quit_cover PARAMS ((PTR));
static void disconnect PARAMS ((int));
+#endif
static void source_cleanup PARAMS ((FILE *));
struct cmd_list_element *disablelist;
+/* Chain containing all defined toggle subcommands. */
+
+struct cmd_list_element *togglelist;
+
+/* Chain containing all defined stop subcommands. */
+
+struct cmd_list_element *stoplist;
+
/* Chain containing all defined delete subcommands. */
struct cmd_list_element *deletelist;
struct cmd_list_element *showlist;
-#ifdef TARGET_BYTE_ORDER_SELECTABLE
-/* Chain containing the \"set endian\" commands. */
-
-struct cmd_list_element *endianlist;
-#endif
-
/* Chain containing all defined \"set history\". */
struct cmd_list_element *sethistlist;
/* Called after most modules have been initialized, but before taking users
command file. */
-void (*init_ui_hook) PARAMS ((void));
+void (*init_ui_hook) PARAMS ((char *argv0));
+#ifdef __CYGWIN__
+void (*ui_loop_hook) PARAMS ((int));
+#endif
/* Called instead of command_loop at top level. Can be invoked via
return_to_top_level. */
/* Called instead of fputs for all output. */
-void (*fputs_unfiltered_hook) PARAMS ((const char *linebuffer, FILE *stream));
+void (*fputs_unfiltered_hook) PARAMS ((const char *linebuffer, GDB_FILE *stream));
/* Called when the target says something to the host, which may
want to appear in a different window. */
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 (*flush_hook) PARAMS ((GDB_FILE *stream));
/* These three functions support getting lines of text from the user. They
are used in sequence. First readline_begin_hook is called with a text
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. */
void (*call_command_hook) PARAMS ((struct cmd_list_element *c, char *cmd,
int from_tty));
+/* Called when the current thread changes. Argument is thread id. */
+
+void (*context_hook) PARAMS ((int id));
/* Takes control from error (). Typically used to prevent longjmps out of the
middle of the GUI. Usually used in conjunction with a catch routine. */
\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);
}
int
catch_errors (func, args, errstring, mask)
- int (*func) PARAMS ((char *));
+ catch_errors_ftype *func;
PTR args;
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;
/* Handler for SIGHUP. */
-#ifndef _WIN32
+#ifdef SIGHUP
static void
disconnect (signo)
int signo;
signal (SIGHUP, SIG_DFL);
kill (getpid (), SIGHUP);
}
-#endif
/* Just a little helper function for disconnect(). */
static int
quit_cover (s)
-char *s;
+ PTR s;
{
caution = 0; /* Throw caution to the wind -- we're exiting.
This prevents asking the user dumb questions. */
quit_command((char *)0, 0);
return 0;
}
+#endif /* defined SIGHUP */
\f
/* Line number we are currently in in a file which is being sourced. */
static int source_line_number;
{
struct cleanup *cleanups;
- cleanups = make_cleanup (source_cleanup, instream);
+ cleanups = make_cleanup ((make_cleanup_func) source_cleanup, instream);
instream = stream;
command_loop ();
do_cleanups (cleanups);
void (*pre_init_ui_hook) PARAMS ((void));
void
-gdb_init ()
+gdb_init (argv0)
+ char *argv0;
{
if (pre_init_ui_hook)
pre_init_ui_hook ();
expected_language = current_language; /* don't warn about the change. */
if (init_ui_hook)
- init_ui_hook ();
+ init_ui_hook (argv0);
}
/* Allocate, initialize a new command line structure for one of the
/* Allocate and build a new command line structure. */
cmd = build_command_line (type, arg);
- old_chain = make_cleanup (free_command_lines, &cmd);
+ old_chain = make_cleanup ((make_cleanup_func) free_command_lines, &cmd);
/* Read in the body of this command. */
if (recurse_read_control_structure (cmd) == invalid_control)
new_line = insert_args (cmd->line);
if (!new_line)
return invalid_control;
- old_chain = make_cleanup (free_current_contents, &new_line);
+ old_chain = make_cleanup ((make_cleanup_func) free_current_contents,
+ &new_line);
execute_command (new_line, 0);
ret = cmd->control_type;
break;
new_line = insert_args (cmd->line);
if (!new_line)
return invalid_control;
- old_chain = make_cleanup (free_current_contents, &new_line);
+ old_chain = make_cleanup ((make_cleanup_func) free_current_contents,
+ &new_line);
expr = parse_expression (new_line);
- make_cleanup (free_current_contents, &expr);
+ make_cleanup ((make_cleanup_func) free_current_contents, &expr);
ret = simple_control;
loop = 1;
new_line = insert_args (cmd->line);
if (!new_line)
return invalid_control;
- old_chain = make_cleanup (free_current_contents, &new_line);
+ old_chain = make_cleanup ((make_cleanup_func) free_current_contents,
+ &new_line);
/* Parse the conditional for the if statement. */
expr = parse_expression (new_line);
- make_cleanup (free_current_contents, &expr);
+ make_cleanup ((make_cleanup_func) free_current_contents, &expr);
current = NULL;
ret = simple_control;
args->next = user_args;
user_args = args;
- old_chain = make_cleanup (arg_cleanup, 0);
+ old_chain = make_cleanup ((make_cleanup_func) arg_cleanup, 0);
if (p == NULL)
return old_chain;
while (*p)
{
char *start_arg;
+ int squote = 0;
+ int dquote = 0;
+ int bsquote = 0;
if (arg_count >= MAXUSERARGS)
{
user_args->a[arg_count].arg = p;
/* Get to the end of this argument. */
- while (*p && *p != ' ' && *p != '\t')
- p++;
+ while (*p)
+ {
+ if (((*p == ' ' || *p == '\t')) && !squote && !dquote && !bsquote)
+ break;
+ else
+ {
+ if (bsquote)
+ bsquote = 0;
+ else if (*p == '\\')
+ bsquote = 1;
+ else if (squote)
+ {
+ if (*p == '\'')
+ squote = 0;
+ }
+ else if (dquote)
+ {
+ if (*p == '"')
+ dquote = 0;
+ }
+ else
+ {
+ if (*p == '\'')
+ squote = 1;
+ else if (*p == '"')
+ dquote = 1;
+ }
+ p++;
+ }
+ }
user_args->a[arg_count].len = p - start_arg;
arg_count++;
/* Set the instream to 0, indicating execution of a
user-defined function. */
- old_chain = make_cleanup (source_cleanup, instream);
+ old_chain = make_cleanup ((make_cleanup_func) source_cleanup, instream);
instream = (FILE *) 0;
while (cmdlines)
{
free_all_values ();
+ /* Force cleanup of any alloca areas if using C alloca instead of
+ a builtin alloca. */
+ alloca (0);
+
/* This can happen when command_line_input hits end of file. */
if (p == NULL)
return;
int stdin_is_tty = ISATTY (stdin);
long time_at_cmd_start;
#ifdef HAVE_SBRK
- long space_at_cmd_start;
+ long space_at_cmd_start = 0;
#endif
extern int display_time;
extern int display_space;
while (instream && !feof (instream))
{
+#if defined(TUI)
+ extern int insert_mode;
+#endif
if (window_hook && instream == stdin)
(*window_hook) (instream, prompt);
quit_flag = 0;
if (instream == stdin && stdin_is_tty)
reinitialize_more_filter ();
- old_chain = make_cleanup (command_loop_marker, 0);
+ old_chain = make_cleanup ((make_cleanup_func) command_loop_marker, 0);
+
+#if defined(TUI)
+ /* A bit of paranoia: I want to make sure the "insert_mode" global
+ * is clear except when it is being used for command-line editing
+ * (see tuiIO.c, utils.c); otherwise normal output will
+ * get messed up in the TUI. So clear it before/after
+ * the command-line-input call. - RT
+ */
+ insert_mode = 0;
+#endif
+ /* Get a command-line. This calls the readline package. */
command = command_line_input (instream == stdin ? prompt : (char *) NULL,
instream == stdin, "prompt");
+#if defined(TUI)
+ insert_mode = 0;
+#endif
if (command == 0)
return;
}
if (c == '\n')
+#ifndef CRLF_SOURCE_FILES
break;
+#else
+ {
+ if (input_index > 0 && result[input_index - 1] == '\r')
+ input_index--;
+ break;
+ }
+#endif
result[input_index++] = c;
while (input_index >= result_size)
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
might be in memory, shared between the two). Since we establish
a handler for SIGQUIT, when we call exec it will set the signal
to SIG_DFL for us. */
-#ifndef _WIN32
signal (SIGQUIT, do_nothing);
+#ifdef SIGHUP
if (signal (SIGHUP, do_nothing) != SIG_IGN)
signal (SIGHUP, disconnect);
#endif
else
{
head = next;
- old_chain = make_cleanup (free_command_lines, &head);
+ old_chain = make_cleanup ((make_cleanup_func) free_command_lines,
+ &head);
}
tail = next;
}
free_command_lines (&doclines);
}
\f
+/* Print the GDB banner. */
void
print_gdb_version (stream)
GDB_FILE *stream;
/* Second line is a copyright notice. */
- fprintf_filtered (stream, "Copyright 1996 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;
+}
+
+void
+set_prompt (s)
+ char *s;
+{
+/* ??rehrauer: I don't know why this fails, since it looks as though
+ assignments to prompt are wrapped in calls to savestring...
+ if (prompt != NULL)
+ free (prompt);
+*/
+ prompt = savestring (s, strlen (s));
+}
+
\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);
if (write_history_p && history_filename)
write_history (history_filename);
+ do_final_cleanups(ALL_CLEANUPS); /* Do any final cleanups before exiting */
+
+#if defined(TUI)
+ /* tuiDo((TuiOpaqueFuncPtr)tuiCleanUp); */
+ /* The above does not need to be inside a tuiDo(), since
+ * it is not manipulating the curses screen, but rather,
+ * it is tearing it down.
+ */
+ if (tui_version)
+ tuiCleanUp();
+#endif
+
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. */
else
return;
- make_cleanup (fclose, stream);
+ make_cleanup ((make_cleanup_func) fclose, stream);
old_lines.old_line = source_line_number;
old_lines.old_file = source_file_name;
necessarily reading from stdin. */
}
\f
-#ifdef TARGET_BYTE_ORDER_SELECTABLE
-
-/* Functions to manipulate the endianness of the target. */
-
-#ifndef TARGET_BYTE_ORDER_DEFAULT
-#define TARGET_BYTE_ORDER_DEFAULT BIG_ENDIAN
-#endif
-
-int target_byte_order = TARGET_BYTE_ORDER_DEFAULT;
-
-static int target_byte_order_auto = 1;
-
-/* Called if the user enters ``set endian'' without an argument. */
-static void
-set_endian (args, from_tty)
- char *args;
- int from_tty;
-{
- printf_unfiltered ("\"set endian\" must be followed by \"auto\", \"big\" or \"little\".\n");
- show_endian (args, from_tty);
-}
-
-/* Called by ``set endian big''. */
-static void
-set_endian_big (args, from_tty)
- char *args;
- int from_tty;
-{
- target_byte_order = BIG_ENDIAN;
- target_byte_order_auto = 0;
-}
-
-/* Called by ``set endian little''. */
-static void
-set_endian_little (args, from_tty)
- char *args;
- int from_tty;
-{
- target_byte_order = LITTLE_ENDIAN;
- target_byte_order_auto = 0;
-}
-
-/* Called by ``set endian auto''. */
-static void
-set_endian_auto (args, from_tty)
- char *args;
- int from_tty;
-{
- target_byte_order_auto = 1;
-}
-
-/* Called by ``show endian''. */
-static void
-show_endian (args, from_tty)
- char *args;
- int from_tty;
-{
- const char *msg =
- (target_byte_order_auto
- ? "The target endianness is set automatically (currently %s endian)\n"
- : "The target is assumed to be %s endian\n");
- printf_unfiltered ((char *) msg, TARGET_BYTE_ORDER == BIG_ENDIAN ? "big" : "little");
-}
-
-#endif /* defined (TARGET_BYTE_ORDER_SELECTABLE) */
-
-/* Set the endianness from a BFD. */
-void
-set_endian_from_file (abfd)
- bfd *abfd;
-{
-#ifdef TARGET_BYTE_ORDER_SELECTABLE
- int want;
-
- if (bfd_big_endian (abfd))
- want = BIG_ENDIAN;
- else
- want = LITTLE_ENDIAN;
- if (target_byte_order_auto)
- target_byte_order = want;
- else if (target_byte_order != want)
- warning ("%s endian file does not match %s endian target.",
- want == BIG_ENDIAN ? "big" : "little",
- TARGET_BYTE_ORDER == BIG_ENDIAN ? "big" : "little");
-
-#else /* ! defined (TARGET_BYTE_ORDER_SELECTABLE) */
-
- if (bfd_big_endian (abfd)
- ? TARGET_BYTE_ORDER != BIG_ENDIAN
- : TARGET_BYTE_ORDER == BIG_ENDIAN)
- warning ("%s endian file does not match %s endian target.",
- bfd_big_endian (abfd) ? "big" : "little",
- TARGET_BYTE_ORDER == BIG_ENDIAN ? "big" : "little");
-
-#endif /* ! defined (TARGET_BYTE_ORDER_SELECTABLE) */
-}
-\f
/* Functions to manipulate command line editing control variables. */
/* Number of commands to print in each call to show_commands. */
infolist = NULL;
enablelist = NULL;
disablelist = NULL;
+ togglelist = NULL;
+ stoplist = NULL;
deletelist = NULL;
enablebreaklist = NULL;
setlist = NULL;
unsetlist = NULL;
showlist = NULL;
-#ifdef TARGET_BYTE_ORDER_SELECTABLE
- endianlist = NULL;
-#endif
sethistlist = NULL;
showhistlist = NULL;
unsethistlist = NULL;
{
struct cmd_list_element *c;
-#ifdef TARGET_BYTE_ORDER_SELECTABLE
-
- add_prefix_cmd ("endian", class_support, set_endian,
- "Set endianness of target.",
- &endianlist, "set endian ", 0, &setlist);
- add_cmd ("big", class_support, set_endian_big,
- "Set target as being big endian.", &endianlist);
- add_cmd ("little", class_support, set_endian_little,
- "Set target as being little endian.", &endianlist);
- add_cmd ("auto", class_support, set_endian_auto,
- "Select target endianness automatically.", &endianlist);
- add_cmd ("endian", class_support, show_endian,
- "Show endianness of target.", &showlist);
-
-#endif /* defined (TARGET_BYTE_ORDER_SELECTABLE) */
-
#ifdef DEFAULT_PROMPT
prompt = savestring (DEFAULT_PROMPT, strlen(DEFAULT_PROMPT));
#else
The commands in this class are those defined by the user.\n\
Use the \"define\" command to define a command.", &cmdlist);
add_cmd ("support", class_support, NO_FUNCTION, "Support facilities.", &cmdlist);
- add_cmd ("status", class_info, NO_FUNCTION, "Status inquiries.", &cmdlist);
+ if (!dbx_commands)
+ add_cmd ("status", class_info, NO_FUNCTION, "Status inquiries.", &cmdlist);
add_cmd ("files", class_files, NO_FUNCTION, "Specifying and examining files.", &cmdlist);
add_cmd ("breakpoints", class_breakpoint, NO_FUNCTION, "Making program stop at certain points.", &cmdlist);
add_cmd ("data", class_vars, NO_FUNCTION, "Examining data.", &cmdlist);
add_show_from_set
(add_set_cmd ("editing", class_support, var_boolean, (char *)&command_editing_p,
"Set editing of command lines as they are typed.\n\
-Use \"on\" to enable to enable the editing, and \"off\" to disable it.\n\
+Use \"on\" to enable the editing, and \"off\" to disable it.\n\
Without an argument, command line editing is enabled. To edit, use\n\
EMACS-like or VI-like commands like control-P or ESC.", &setlist),
&showlist);
add_show_from_set
(add_set_cmd ("save", no_class, var_boolean, (char *)&write_history_p,
"Set saving of the history record on exit.\n\
-Use \"on\" to enable to enable the saving, and \"off\" to disable it.\n\
+Use \"on\" to enable the saving, and \"off\" to disable it.\n\
Without an argument, saving is enabled.", &sethistlist),
&showhistlist);
This value is used to set the time limit for gdb to wait for a response\n\
from he target.", &setlist),
&showlist);
+
+ c = add_set_cmd ("annotate", class_obscure, var_zinteger,
+ (char *)&annotation_level, "Set annotation_level.\n\
+0 == normal; 1 == fullname (for use when running under emacs)\n\
+2 == output annotated suitably for use by programs that control GDB.",
+ &setlist);
+ c = add_show_from_set (c, &showlist);
}