/* 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, 98, 1999
Free Software Foundation, Inc.
This file is part of GDB.
#include "language.h"
#include "terminal.h" /* For job_control. */
#include "annotate.h"
-#include <setjmp.h>
#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
#include <unistd.h>
#endif
+#include "event-loop.h"
#include "gdb_string.h"
#include "gdb_stat.h"
#include <ctype.h>
-extern void initialize_utils PARAMS ((void));
-
/* Prototypes for local functions */
static void dont_repeat_command PARAMS ((char *, int));
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 command_loop_marker PARAMS ((int));
+/* NOTE 1999-04-29: this function will be static again, after we make the
+ event loop be the default command loop for gdb, and we merge
+ event-top.c into this file, top.c */
+/* static */ void command_loop_marker PARAMS ((int));
static void while_command 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
+/* NOTE 1999-04-29: This function will be static again, once we modify
+ gdb to use the event loop as the default command loop and we merge
+ event-top.c into this file, top.c */
+/* 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;
/* Chain containing all defined maintenance subcommands. */
-#if MAINTENANCE_CMDS
struct cmd_list_element *maintenancelist;
-#endif
/* Chain containing all defined "maintenance info" subcommands. */
-#if MAINTENANCE_CMDS
struct cmd_list_element *maintenanceinfolist;
-#endif
/* Chain containing all defined "maintenance print" subcommands. */
-#if MAINTENANCE_CMDS
struct cmd_list_element *maintenanceprintlist;
-#endif
struct cmd_list_element *setprintlist;
int xgdb_verbose;
/* gdb prints this when reading a command interactively */
-static char *prompt;
+static char *gdb_prompt_string; /* the global prompt string */
+extern char *get_prompt PARAMS((void)); /* access function for prompt string */
/* Buffer used for reading command lines, and the size
allocated for it so far. */
int remote_debug = 0;
+/* Non-zero means the target is running. Note: this is different from
+ saying that there is an active target and we are stopped at a
+ breakpoint, for instance. This is a real indicator whether the
+ target is off and running, which gdb is doing something else. */
+int target_executing = 0;
+
/* Level of control structure. */
static int control_level;
/* 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));
+
+/* This hook is called from within gdb's many mini-event loops which could
+ steal control from a real user interface's event loop. It returns
+ non-zero if the user is requesting a detach, zero otherwise. */
+
+int (*ui_loop_hook) PARAMS ((int));
/* 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));
-
-/* Called when the target says something to the host, which may
- want to appear in a different window. */
-
-void (*target_output_hook) PARAMS ((char *));
+void (*fputs_unfiltered_hook) PARAMS ((const char *linebuffer, GDB_FILE *stream));
/* Called from print_frame_info to list the line we stopped in. */
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 register REGNO. -1 means
+ that the caller does not know which register changed or
+ that several registers have changed (see value_assign).*/
+void (*register_changed_hook) PARAMS ((int regno));
+
+/* Tell the GUI someone changed LEN bytes of memory at ADDR */
+void (*memory_changed_hook) PARAMS ((CORE_ADDR addr, int len));
+
/* 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. */
disable_current_display ();
do_cleanups (ALL_CLEANUPS);
+ if (async_p && target_has_async)
+ do_exec_cleanups (ALL_CLEANUPS);
if (annotation_level > 1)
switch (reason)
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. */
+#ifdef SIGHUP
static void
disconnect (signo)
int signo;
/* Just a little helper function for disconnect(). */
-static int
+/* NOTE 1999-04-29: This function will be static again, once we modify
+ gdb to use the event loop as the default command loop and we merge
+ event-top.c into this file, top.c */
+/* 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;
+/* NOTE 1999-04-29: This variable will be static again, once we modify
+ gdb to use the event loop as the default command loop and we merge
+ event-top.c into this file, top.c */
+/* static */ int source_line_number;
/* Name of the file we are sourcing. */
-static char *source_file_name;
+/* NOTE 1999-04-29: This variable will be static again, once we modify
+ gdb to use the event loop as the default command loop and we merge
+ event-top.c into this file, top.c */
+/* static */ char *source_file_name;
/* Buffer containing the error_pre_print used by the source stuff.
Malloc'd. */
-static char *source_error;
+/* NOTE 1999-04-29: This variable will be static again, once we modify
+ gdb to use the event loop as the default command loop and we merge
+ event-top.c into this file, top.c */
+/* static */ char *source_error;
static int source_error_allocated;
/* Something to glom on to the start of error_pre_print if source_file_name
is set. */
-static char *source_pre_error;
+/* NOTE 1999-04-29: This variable will be static again, once we modify
+ gdb to use the event loop as the default command loop and we merge
+ event-top.c into this file, top.c */
+/* static */ char *source_pre_error;
/* Clean up on error during a "source" command (or execution of a
user-defined command). */
{
struct cleanup *cleanups;
- cleanups = make_cleanup (source_cleanup, instream);
+ cleanups = make_cleanup ((make_cleanup_func) source_cleanup, instream);
instream = stream;
- command_loop ();
+ command_loop ();
do_cleanups (cleanups);
}
\f
void (*pre_init_ui_hook) PARAMS ((void));
void
-gdb_init ()
+gdb_init (argv0)
+ char *argv0;
{
if (pre_init_ui_hook)
pre_init_ui_hook ();
initialize_utils (); /* Make errors and warnings possible */
initialize_all_files ();
init_main (); /* But that omits this file! Do it now */
- init_signals ();
- init_proc ();
+ /* The signal handling mechanism is different depending whether or
+ not the async version is run. NOTE: in the future we plan to make
+ the event loop be the default engine of gdb, and this difference
+ will disappear. */
+ if (async_p)
+ async_init_signals ();
+ else
+ init_signals ();
/* We need a default language for parsing expressions, so simple things like
"set width 0" won't fail if no language is explicitly set in a config file
set_language (language_c);
expected_language = current_language; /* don't warn about the change. */
+ /* All the interpreters should have had a look at things by now.
+ Initialize the selected interpreter. */
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)
/* Recursively print a command (including full control structures). */
void
-print_command_line (cmd, depth)
+print_command_line (cmd, depth, stream)
struct command_line *cmd;
unsigned int depth;
+ GDB_FILE *stream;
{
unsigned int i;
if (depth)
{
for (i = 0; i < depth; i++)
- fputs_filtered (" ", gdb_stdout);
+ fputs_filtered (" ", stream);
}
/* A simple command, print it and return. */
if (cmd->control_type == simple_control)
{
- fputs_filtered (cmd->line, gdb_stdout);
- fputs_filtered ("\n", gdb_stdout);
+ fputs_filtered (cmd->line, stream);
+ fputs_filtered ("\n", stream);
return;
}
and return. */
if (cmd->control_type == continue_control)
{
- fputs_filtered ("loop_continue\n", gdb_stdout);
+ fputs_filtered ("loop_continue\n", stream);
return;
}
/* loop_break to break out of a while loop, print it and return. */
if (cmd->control_type == break_control)
{
- fputs_filtered ("loop_break\n", gdb_stdout);
+ fputs_filtered ("loop_break\n", stream);
return;
}
if (cmd->control_type == while_control)
{
struct command_line *list;
- fputs_filtered ("while ", gdb_stdout);
- fputs_filtered (cmd->line, gdb_stdout);
- fputs_filtered ("\n", gdb_stdout);
+ fputs_filtered ("while ", stream);
+ fputs_filtered (cmd->line, stream);
+ fputs_filtered ("\n", stream);
list = *cmd->body_list;
while (list)
{
- print_command_line (list, depth + 1);
+ print_command_line (list, depth + 1, stream);
list = list->next;
}
}
/* An if command. Recursively print both arms before returning. */
if (cmd->control_type == if_control)
{
- fputs_filtered ("if ", gdb_stdout);
- fputs_filtered (cmd->line, gdb_stdout);
- fputs_filtered ("\n", gdb_stdout);
+ fputs_filtered ("if ", stream);
+ fputs_filtered (cmd->line, stream);
+ fputs_filtered ("\n", stream);
/* The true arm. */
- print_command_line (cmd->body_list[0], depth + 1);
+ print_command_line (cmd->body_list[0], depth + 1, stream);
/* Show the false arm if it exists. */
if (cmd->body_count == 2)
if (depth)
{
for (i = 0; i < depth; i++)
- fputs_filtered (" ", gdb_stdout);
+ fputs_filtered (" ", stream);
}
- fputs_filtered ("else\n", gdb_stdout);
- print_command_line (cmd->body_list[1], depth + 1);
+ fputs_filtered ("else\n", stream);
+ print_command_line (cmd->body_list[1], depth + 1, stream);
}
if (depth)
{
for (i = 0; i < depth; i++)
- fputs_filtered (" ", gdb_stdout);
+ fputs_filtered (" ", stream);
}
- fputs_filtered ("end\n", gdb_stdout);
+ fputs_filtered ("end\n", stream);
}
}
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;
char *arg;
c = lookup_cmd (&p, cmdlist, "", 0, 1);
+
+ /* If the target is running, we allow only a limited set of
+ commands. */
+ if (async_p && target_has_async && target_executing)
+ if (!strcmp (c->name, "help")
+ && !strcmp (c->name, "pwd")
+ && !strcmp (c->name, "show")
+ && !strcmp (c->name, "stop"))
+ error ("Cannot execute this command while the target is running.");
+
/* Pass null arg rather than an empty one. */
arg = *p ? p : 0;
}
/* ARGSUSED */
-static void
+/* NOTE 1999-04-29: This function will be static again, once we modify
+ gdb to use the event loop as the default command loop and we merge
+ event-top.c into this file, top.c */
+/* static */ void
command_loop_marker (foo)
int foo;
{
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);
+ (*window_hook) (instream, get_prompt ());
quit_flag = 0;
if (instream == stdin && stdin_is_tty)
reinitialize_more_filter ();
- old_chain = make_cleanup (command_loop_marker, 0);
- command = command_line_input (instream == stdin ? prompt : (char *) NULL,
+ 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 ?
+ get_prompt () : (char *) NULL,
instream == stdin, "prompt");
+#if defined(TUI)
+ insert_mode = 0;
+#endif
if (command == 0)
return;
}
}
}
+
\f
/* Commands call this if they do not want to be repeated by null lines. */
\f
/* Read a line from the stream "instream" without command line editing.
- It prints PRROMPT once at the start.
+ It prints PROMPT_ARG once at the start.
Action is compatible with "readline", e.g. space for the result is
malloc'd and should be freed by the caller.
A NULL return means end of file. */
char *
-gdb_readline (prrompt)
- char *prrompt;
+gdb_readline (prompt_arg)
+ char *prompt_arg;
{
int c;
char *result;
int input_index = 0;
int result_size = 80;
- if (prrompt)
+ if (prompt_arg)
{
/* Don't use a _filtered function here. It causes the assumed
character position to be off, since the newline we read from
the user is not accounted for. */
- fputs_unfiltered (prrompt, gdb_stdout);
+ fputs_unfiltered (prompt_arg, gdb_stdout);
#ifdef MPW
/* Move to a new line so the entered line doesn't have a prompt
on the front of it. */
}
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)
substitution. These variables are given default values at the end
of this file. */
static int command_editing_p;
-static int history_expansion_p;
+/* NOTE 1999-04-29: This variable will be static again, once we modify
+ gdb to use the event loop as the default command loop and we merge
+ event-top.c into this file, top.c */
+/* static */ int history_expansion_p;
static int write_history_p;
static int history_size;
static char *history_filename;
#else
signal (STOP_SIGNAL, stop_sig);
#endif
- printf_unfiltered ("%s", prompt);
+ printf_unfiltered ("%s", get_prompt ());
gdb_flush (gdb_stdout);
/* Forget about any previous command -- null line now will do nothing. */
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
a handler for SIGQUIT, when we call exec it will set the signal
to SIG_DFL for us. */
signal (SIGQUIT, do_nothing);
+#ifdef SIGHUP
if (signal (SIGHUP, do_nothing) != SIG_IGN)
signal (SIGHUP, disconnect);
+#endif
signal (SIGFPE, float_handler);
#if defined(SIGWINCH) && defined(SIGWINCH_HANDLER)
simple input as the user has requested. */
char *
-command_line_input (prrompt, repeat, annotation_suffix)
- char *prrompt;
+command_line_input (prompt_arg, repeat, annotation_suffix)
+ char *prompt_arg;
int repeat;
char *annotation_suffix;
{
register char *p;
char *p1;
char *rl;
- char *local_prompt = prrompt;
+ char *local_prompt = prompt_arg;
char *nline;
char got_eof = 0;
if (annotation_level > 1 && instream == stdin)
{
- local_prompt = alloca ((prrompt == NULL ? 0 : strlen (prrompt))
+ local_prompt = alloca ((prompt_arg == NULL ? 0 : strlen (prompt_arg))
+ strlen (annotation_suffix) + 40);
- if (prrompt == NULL)
+ if (prompt_arg == NULL)
local_prompt[0] = '\0';
else
- strcpy (local_prompt, prrompt);
+ strcpy (local_prompt, prompt_arg);
strcat (local_prompt, "\n\032\032");
strcat (local_prompt, annotation_suffix);
strcat (local_prompt, "\n");
immediate_quit++;
#ifdef STOP_SIGNAL
if (job_control)
- signal (STOP_SIGNAL, stop_sig);
+ {
+ if (async_p)
+ signal (STOP_SIGNAL, handle_stop_sig);
+ else
+ signal (STOP_SIGNAL, stop_sig);
+ }
#endif
while (1)
if (expanded < 0)
{
free (history_value);
- return command_line_input (prrompt, repeat, annotation_suffix);
+ return command_line_input (prompt_arg, repeat, annotation_suffix);
}
if (strlen (history_value) > linelength)
{
#define END_MESSAGE "End with a line saying just \"end\"."
struct command_line *
-read_command_lines (prompt, from_tty)
-char *prompt;
-int from_tty;
+read_command_lines (prompt_arg, from_tty)
+ char *prompt_arg;
+ int from_tty;
{
struct command_line *head, *tail, *next;
struct cleanup *old_chain;
enum command_control_type ret;
enum misc_command_type val;
+ control_level = 0;
if (readline_begin_hook)
{
/* Note - intentional to merge messages with no newline */
- (*readline_begin_hook) ("%s %s\n", prompt, END_MESSAGE);
+ (*readline_begin_hook) ("%s %s\n", prompt_arg, END_MESSAGE);
}
else if (from_tty && input_from_terminal_p ())
{
- printf_unfiltered ("%s\n%s\n", prompt, END_MESSAGE);
+ printf_unfiltered ("%s\n%s\n", prompt_arg, END_MESSAGE);
gdb_flush (gdb_stdout);
}
else
{
head = next;
- old_chain = make_cleanup (free_command_lines, &head);
+ old_chain = make_cleanup ((make_cleanup_func) free_command_lines,
+ &head);
}
tail = next;
}
for (tem = comname; *tem; tem++)
if (isupper(*tem)) *tem = tolower(*tem);
- control_level = 0;
sprintf (tmpbuf, "Type commands for definition of \"%s\".", comname);
cmds = read_command_lines (tmpbuf, from_tty);
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
immediate_quit--;
}
\f
-/* xgdb calls this to reprint the usual GDB prompt. Obsolete now that xgdb
- is obsolete. */
+/* get_prompt: access method for the GDB prompt string. */
-void
-print_prompt ()
+#define MAX_PROMPT_SIZE 256
+
+/*
+ * int get_prompt_1 (char * buf);
+ *
+ * Work-horse for get_prompt (called via catch_errors).
+ * Argument is buffer to hold the formatted prompt.
+ *
+ * Returns: 1 for success (use formatted prompt)
+ * 0 for failure (use gdb_prompt_string).
+ */
+
+static int gdb_prompt_escape;
+
+static int
+get_prompt_1 (formatted_prompt)
+ char *formatted_prompt;
{
- printf_unfiltered ("%s", prompt);
- gdb_flush (gdb_stdout);
+ char *local_prompt;
+
+ if (async_p)
+ local_prompt = PROMPT (0);
+ else
+ local_prompt = gdb_prompt_string;
+
+
+ if (gdb_prompt_escape == 0)
+ {
+ return 0; /* do no formatting */
+ }
+ else /* formatted prompt */
+ {
+ char fmt[40], *promptp, *outp, *tmp;
+ value_ptr arg_val;
+ DOUBLEST doubleval;
+ LONGEST longval;
+ CORE_ADDR addrval;
+
+ int i, len;
+ struct type *arg_type, *elt_type;
+
+ promptp = local_prompt;
+ outp = formatted_prompt;
+
+ while (*promptp != '\0')
+ {
+ int available = MAX_PROMPT_SIZE - (outp - formatted_prompt) - 1;
+
+ if (*promptp != gdb_prompt_escape)
+ {
+ if (available >= 1) /* overflow protect */
+ *outp++ = *promptp++;
+ }
+ else
+ {
+ /* GDB prompt string contains escape char. Parse for arg.
+ Two consecutive escape chars followed by arg followed by
+ a comma means to insert the arg using a default format.
+ Otherwise a printf format string may be included between
+ the two escape chars. eg:
+ %%foo, insert foo using default format
+ %2.2f%foo, insert foo using "%2.2f" format
+ A mismatch between the format string and the data type
+ of "foo" is an error (which we don't know how to protect
+ against). */
+
+ fmt[0] = '\0'; /* assume null format string */
+ if (promptp[1] == gdb_prompt_escape) /* double esc char */
+ {
+ promptp += 2; /* skip past two escape chars. */
+ }
+ else
+ {
+ /* extract format string from between two esc chars */
+ i = 0;
+ do {
+ fmt[i++] = *promptp++; /* copy format string */
+ } while (i < sizeof (fmt) - 1 &&
+ *promptp != gdb_prompt_escape &&
+ *promptp != '\0');
+
+ if (*promptp != gdb_prompt_escape)
+ error ("Syntax error at prompt position %d",
+ promptp - local_prompt);
+ else
+ {
+ promptp++; /* skip second escape char */
+ fmt[i++] = '\0'; /* terminate the format string */
+ }
+ }
+
+ arg_val = parse_to_comma_and_eval (&promptp);
+ if (*promptp == ',')
+ promptp++; /* skip past the comma */
+ arg_type = check_typedef (VALUE_TYPE (arg_val));
+ switch (TYPE_CODE (arg_type))
+ {
+ case TYPE_CODE_ARRAY:
+ elt_type = check_typedef (TYPE_TARGET_TYPE (arg_type));
+ if (TYPE_LENGTH (arg_type) > 0 &&
+ TYPE_LENGTH (elt_type) == 1 &&
+ TYPE_CODE (elt_type) == TYPE_CODE_INT)
+ {
+ int len = TYPE_LENGTH (arg_type);
+
+ if (VALUE_LAZY (arg_val))
+ value_fetch_lazy (arg_val);
+ tmp = VALUE_CONTENTS (arg_val);
+
+ if (len > available)
+ len = available; /* overflow protect */
+
+ /* FIXME: how to protect GDB from crashing
+ from bad user-supplied format string? */
+ if (fmt[0] != 0)
+ sprintf (outp, fmt, tmp);
+ else
+ strncpy (outp, tmp, len);
+ outp[len] = '\0';
+ }
+ break;
+ case TYPE_CODE_PTR:
+ elt_type = check_typedef (TYPE_TARGET_TYPE (arg_type));
+ addrval = value_as_pointer (arg_val);
+
+ if (TYPE_LENGTH (elt_type) == 1 &&
+ TYPE_CODE (elt_type) == TYPE_CODE_INT &&
+ addrval != 0)
+ {
+ /* display it as a string */
+ char *default_fmt = "%s";
+ char *tmp;
+ int err = 0;
+
+ /* Limiting the number of bytes that the following call
+ will read protects us from sprintf overflow later. */
+ i = target_read_string (addrval, /* src */
+ &tmp, /* dest */
+ available, /* len */
+ &err);
+ if (err) /* read failed */
+ error ("%s on target_read", safe_strerror (err));
+
+ tmp[i] = '\0'; /* force-terminate string */
+ /* FIXME: how to protect GDB from crashing
+ from bad user-supplied format string? */
+ sprintf (outp, fmt[0] == 0 ? default_fmt : fmt,
+ tmp);
+ free (tmp);
+ }
+ else
+ {
+ /* display it as a pointer */
+ char *default_fmt = "0x%x";
+
+ /* FIXME: how to protect GDB from crashing
+ from bad user-supplied format string? */
+ if (available >= 16 /*?*/) /* overflow protect */
+ sprintf (outp, fmt[0] == 0 ? default_fmt : fmt,
+ (long) addrval);
+ }
+ break;
+ case TYPE_CODE_FLT:
+ {
+ char *default_fmt = "%g";
+
+ doubleval = value_as_double (arg_val);
+ /* FIXME: how to protect GDB from crashing
+ from bad user-supplied format string? */
+ if (available >= 16 /*?*/) /* overflow protect */
+ sprintf (outp, fmt[0] == 0 ? default_fmt : fmt,
+ (double) doubleval);
+ break;
+ }
+ case TYPE_CODE_INT:
+ {
+ char *default_fmt = "%d";
+
+ longval = value_as_long (arg_val);
+ /* FIXME: how to protect GDB from crashing
+ from bad user-supplied format string? */
+ if (available >= 16 /*?*/) /* overflow protect */
+ sprintf (outp, fmt[0] == 0 ? default_fmt : fmt,
+ (long) longval);
+ break;
+ }
+ case TYPE_CODE_BOOL:
+ {
+ /* no default format for bool */
+ longval = value_as_long (arg_val);
+ if (available >= 8 /*?*/) /* overflow protect */
+ {
+ if (longval)
+ strcpy (outp, "<true>");
+ else
+ strcpy (outp, "<false>");
+ }
+ break;
+ }
+ case TYPE_CODE_ENUM:
+ {
+ /* no default format for enum */
+ longval = value_as_long (arg_val);
+ len = TYPE_NFIELDS (arg_type);
+ /* find enum name if possible */
+ for (i = 0; i < len; i++)
+ if (TYPE_FIELD_BITPOS (arg_type, i) == longval)
+ break; /* match -- end loop */
+
+ if (i < len) /* enum name found */
+ {
+ char *name = TYPE_FIELD_NAME (arg_type, i);
+
+ strncpy (outp, name, available);
+ /* in casel available < strlen (name), */
+ outp[available] = '\0';
+ }
+ else
+ {
+ if (available >= 16 /*?*/) /* overflow protect */
+ sprintf (outp, "%d", (long) longval);
+ }
+ break;
+ }
+ case TYPE_CODE_VOID:
+ *outp = '\0';
+ break; /* void type -- no output */
+ default:
+ error ("bad data type at prompt position %d",
+ promptp - local_prompt);
+ break;
+ }
+ outp += strlen (outp);
+ }
+ }
+ *outp++ = '\0'; /* terminate prompt string */
+ return 1;
+ }
}
+
+char *
+get_prompt ()
+{
+ static char buf[MAX_PROMPT_SIZE];
+
+ if (catch_errors (get_prompt_1, buf, "bad formatted prompt: ",
+ RETURN_MASK_ALL))
+ {
+ return &buf[0]; /* successful formatted prompt */
+ }
+ else
+ {
+ /* Prompt could not be formatted. */
+ if (async_p)
+ return PROMPT (0);
+ else
+ return gdb_prompt_string;
+ }
+}
+
+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);
+*/
+ if (async_p)
+ PROMPT (0) = savestring (s, strlen (s));
+ else
+ gdb_prompt_string = 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);
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. */
stream = fopen (file, FOPEN_RT);
if (!stream)
- if (from_tty)
- perror_with_name (file);
- else
- return;
+ {
+ if (from_tty)
+ perror_with_name (file);
+ 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;
-#if MAINTENANCE_CMDS
maintenancelist = NULL;
maintenanceinfolist = NULL;
maintenanceprintlist = NULL;
-#endif
setprintlist = NULL;
showprintlist = NULL;
setchecklist = 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) */
-
+ /* If we are running the asynchronous version,
+ we initialize the prompts differently. */
+ if (!async_p)
+ {
+#ifdef DEFAULT_PROMPT
+ gdb_prompt_string = savestring (DEFAULT_PROMPT, strlen(DEFAULT_PROMPT));
+#else
+ gdb_prompt_string = savestring ("(gdb) ", 6);
+#endif
+ }
+ else
+ {
+ /* initialize the prompt stack to a simple "(gdb) " prompt or to
+ whatever the DEFULAT_PROMPT is. */
+ the_prompts.top = 0;
+ PREFIX(0) = "";
#ifdef DEFAULT_PROMPT
- prompt = savestring (DEFAULT_PROMPT, strlen(DEFAULT_PROMPT));
+ PROMPT(0) = savestring (DEFAULT_PROMPT, strlen(DEFAULT_PROMPT));
#else
- prompt = savestring ("(gdb) ", 6);
+ PROMPT(0) = savestring ("(gdb) ", 6);
#endif
+ SUFFIX(0) = "";
+ /* Set things up for annotation_level > 1, if the user ever decides
+ to use it. */
+ async_annotation_suffix = "prompt";
+ /* Set the variable associated with the setshow prompt command. */
+ new_async_prompt = savestring (PROMPT (0), strlen (PROMPT (0)));
+ }
+ gdb_prompt_escape = 0; /* default to none. */
/* Set the important stuff up for command editing. */
command_editing_p = 1;
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);
until the next time it is started.", &cmdlist);
c->completer = filename_completer;
+ /* The set prompt command is different depending whether or not the
+ async version is run. NOTE: this difference is going to
+ disappear as we make the event loop be the default engine of
+ gdb. */
+ if (!async_p)
+ {
+ add_show_from_set
+ (add_set_cmd ("prompt", class_support, var_string,
+ (char *) &gdb_prompt_string, "Set gdb's prompt",
+ &setlist),
+ &showlist);
+ }
+ else
+ {
+ c = add_set_cmd ("prompt", class_support, var_string,
+ (char *)&new_async_prompt, "Set gdb's prompt",
+ &setlist);
+ add_show_from_set (c, &showlist);
+ c->function.sfunc = set_async_prompt;
+ }
+
add_show_from_set
- (add_set_cmd ("prompt", class_support, var_string, (char *)&prompt,
- "Set gdb's prompt",
- &setlist),
+ (add_set_cmd ("prompt-escape-char", class_support, var_zinteger,
+ (char *) &gdb_prompt_escape,
+ "Set escape character for formatting of gdb's prompt",
+ &setlist),
&showlist);
add_com ("echo", class_support, echo_command,
c->function.sfunc = set_verbose;
set_verbose (NULL, 0, c);
- 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\
+ /* The set editing command is different depending whether or not the
+ async version is run. NOTE: this difference is going to disappear
+ as we make the event loop be the default engine of gdb. */
+ if (!async_p)
+ {
+ 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 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);
+ &showlist);
+ }
+ else
+ {
+ c = add_set_cmd ("editing", class_support, var_boolean, (char *)&async_command_editing_p,
+ "Set editing of command lines as they are typed.\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);
+
+ add_show_from_set (c, &showlist);
+ c->function.sfunc = set_async_editing_command;
+ }
add_prefix_cmd ("history", class_support, set_history,
"Generic command for setting command history parameters.",
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);
add_set_cmd ("remotetimeout", no_class, var_integer, (char *)&remote_timeout,
"Set timeout limit to wait for target to respond.\n\
This value is used to set the time limit for gdb to wait for a response\n\
-from he target.", &setlist),
+from the target.", &setlist),
&showlist);
- c = add_set_cmd ("annotate", class_obscure, var_zinteger,
- (char *)&annotation_level, "Set annotation_level.\n\
+ /* The set annotate command is different depending whether or not
+ the async version is run. NOTE: this difference is going to
+ disappear as we make the event loop be the default engine of
+ gdb. */
+ if (!async_p)
+ {
+ 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);
+ }
+ else
+ {
+ 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);
+ &setlist);
+ add_show_from_set (c, &showlist);
+ c->function.sfunc = set_async_annotation_level;
+ }
}
projects / deliverable / binutils-gdb.git / blobdiff