/* Top level stuff for GDB, the GNU debugger.
- Copyright 1986-2000 Free Software Foundation, Inc.
+
+ Copyright 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994,
+ 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004
+ Free Software Foundation, Inc.
This file is part of GDB.
#include "defs.h"
#include "gdbcmd.h"
#include "call-cmds.h"
+#include "cli/cli-cmds.h"
+#include "cli/cli-script.h"
+#include "cli/cli-setshow.h"
+#include "cli/cli-decode.h"
#include "symtab.h"
#include "inferior.h"
-#include "signals.h"
+#include <signal.h>
#include "target.h"
#include "breakpoint.h"
#include "gdbtypes.h"
#include "language.h"
#include "terminal.h" /* For job_control. */
#include "annotate.h"
+#include "completer.h"
#include "top.h"
#include "version.h"
+#include "serial.h"
+#include "doublest.h"
+#include "gdb_assert.h"
/* readline include files */
-#include <readline/readline.h>
-#include <readline/history.h>
+#include "readline/readline.h"
+#include "readline/history.h"
/* readline defines this. */
#undef savestring
#include "gdb_string.h"
#include "gdb_stat.h"
#include <ctype.h>
-#ifdef UI_OUT
#include "ui-out.h"
#include "cli-out.h"
-#endif
-
-/* Prototypes for local functions */
-
-static void dont_repeat_command PARAMS ((char *, int));
-
-static void source_cleanup_lines PARAMS ((PTR));
-
-static void user_defined_command PARAMS ((char *, int));
-
-static void init_signals PARAMS ((void));
-
-#ifdef STOP_SIGNAL
-static void stop_sig PARAMS ((int));
-#endif
-
-static char *line_completion_function PARAMS ((char *, int, char *, int));
-
-static char *readline_line_completion_function PARAMS ((char *, 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 if_command PARAMS ((char *, int));
-
-static struct command_line *
- build_command_line PARAMS ((enum command_control_type, char *));
-
-static struct command_line *
- get_command_line PARAMS ((enum command_control_type, char *));
-
-static void realloc_body_list PARAMS ((struct command_line *, int));
-
-static enum misc_command_type read_next_line PARAMS ((struct command_line **));
-
-static enum command_control_type
-recurse_read_control_structure PARAMS ((struct command_line *));
-
-static struct cleanup *setup_user_args PARAMS ((char *));
-
-static char *locate_arg PARAMS ((char *));
-
-static char *insert_args PARAMS ((char *));
-
-static void arg_cleanup PARAMS ((void));
-
-static void init_main PARAMS ((void));
-
-static void init_cmd_lists PARAMS ((void));
-
-static void float_handler PARAMS ((int));
-
-static void init_signals PARAMS ((void));
-
-static void set_verbose PARAMS ((char *, int, struct cmd_list_element *));
-
-static void show_history PARAMS ((char *, int));
-
-static void set_history PARAMS ((char *, int));
-
-static void set_history_size_command PARAMS ((char *, int,
- struct cmd_list_element *));
-
-static void show_commands PARAMS ((char *, int));
-
-static void echo_command PARAMS ((char *, int));
-
-static void pwd_command PARAMS ((char *, int));
-
-static void show_version PARAMS ((char *, int));
-
-static void document_command PARAMS ((char *, int));
-
-static void define_command PARAMS ((char *, int));
-
-static void validate_comname PARAMS ((char *));
-
-static void help_command PARAMS ((char *, int));
-
-static void show_command PARAMS ((char *, int));
-
-static void info_command PARAMS ((char *, int));
-
-static void complete_command PARAMS ((char *, int));
-
-static void do_nothing PARAMS ((int));
-
-static void show_debug PARAMS ((char *, int));
-
-static void set_debug PARAMS ((char *, int));
-
-#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 *));
/* Default command line prompt. This is overriden in some configs. */
/* If nonzero, and GDB has been configured to be able to use windows,
attempt to open them upon startup. */
-int use_windows = 1;
+int use_windows = 0;
extern char lang_frame_mismatch_warn[]; /* language.c */
int caution = 1; /* Default is yes, sigh. */
-/* Define all cmd_list_elements. */
-
-/* Chain containing all defined commands. */
-
-struct cmd_list_element *cmdlist;
-
-/* Chain containing all defined info subcommands. */
-
-struct cmd_list_element *infolist;
-
-/* Chain containing all defined enable subcommands. */
-
-struct cmd_list_element *enablelist;
-
-/* Chain containing all defined disable subcommands. */
-
-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;
-
-/* Chain containing all defined "enable breakpoint" subcommands. */
-
-struct cmd_list_element *enablebreaklist;
-
-/* Chain containing all defined set subcommands */
-
-struct cmd_list_element *setlist;
-
-/* Chain containing all defined unset subcommands */
-
-struct cmd_list_element *unsetlist;
-
-/* Chain containing all defined show subcommands. */
-
-struct cmd_list_element *showlist;
-
-/* Chain containing all defined \"set history\". */
-
-struct cmd_list_element *sethistlist;
-
-/* Chain containing all defined \"show history\". */
-
-struct cmd_list_element *showhistlist;
-
-/* Chain containing all defined \"unset history\". */
-
-struct cmd_list_element *unsethistlist;
-
-/* Chain containing all defined maintenance subcommands. */
-
-struct cmd_list_element *maintenancelist;
-
-/* Chain containing all defined "maintenance info" subcommands. */
-
-struct cmd_list_element *maintenanceinfolist;
-
-/* Chain containing all defined "maintenance print" subcommands. */
-
-struct cmd_list_element *maintenanceprintlist;
-
-struct cmd_list_element *setprintlist;
-
-struct cmd_list_element *showprintlist;
-
-struct cmd_list_element *setdebuglist;
-
-struct cmd_list_element *showdebuglist;
-
-struct cmd_list_element *setchecklist;
-
-struct cmd_list_element *showchecklist;
-
/* stdio stream that command input is being read from. Set to stdin normally.
Set by source_command to the file we are sourcing. Set to NULL if we are
executing a user-defined command or interacting via a GUI. */
The function receives two args: an input stream,
and a prompt string. */
-void (*window_hook) PARAMS ((FILE *, char *));
+void (*window_hook) (FILE *, char *);
int epoch_interface;
int xgdb_verbose;
/* gdb prints this when reading a command interactively */
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. */
In mid-1996, remote_timeout was moved from remote.c to top.c and
it began being used in other remote-* targets. It appears that the
default was changed to 20 seconds at that time, perhaps because the
- Hitachi E7000 ICE didn't always respond in a timely manner.
+ Renesas E7000 ICE didn't always respond in a timely manner.
But if 5 seconds is a long time to sit and wait for retransmissions,
20 seconds is far worse. This demonstrates the difficulty of using
/* Level of control structure. */
static int control_level;
-/* Structure for arguments to user defined functions. */
-#define MAXUSERARGS 10
-struct user_args
- {
- struct user_args *next;
- struct
- {
- char *arg;
- int len;
- }
- a[MAXUSERARGS];
- int count;
- }
- *user_args;
+/* Sbrk location on entry to main. Used for statistics only. */
+#ifdef HAVE_SBRK
+char *lim_at_start;
+#endif
/* Signal to catch ^Z typed while reading a command: SIGTSTP or SIGCONT. */
#ifndef STOP_SIGNAL
#ifdef SIGTSTP
#define STOP_SIGNAL SIGTSTP
-static void stop_sig PARAMS ((int));
-#endif
-#endif
-
-/* Some System V have job control but not sigsetmask(). */
-#if !defined (HAVE_SIGSETMASK)
-#if !defined (USG)
-#define HAVE_SIGSETMASK 1
-#else
-#define HAVE_SIGSETMASK 0
+static void stop_sig (int);
#endif
#endif
-#if 0 == (HAVE_SIGSETMASK)
-#define sigsetmask(n)
-#endif
-
/* Hooks for alternate command interfaces. */
/* Called after most modules have been initialized, but before taking users
- command file. */
+ command file.
-void (*init_ui_hook) PARAMS ((char *argv0));
+ If the UI fails to initialize and it wants GDB to continue
+ using the default UI, then it should clear this hook before returning. */
+
+void (*deprecated_init_ui_hook) (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));
+int (*deprecated_ui_loop_hook) (int);
/* Called instead of command_loop at top level. Can be invoked via
- return_to_top_level. */
+ throw_exception(). */
-void (*command_loop_hook) PARAMS ((void));
+void (*deprecated_command_loop_hook) (void);
/* Called from print_frame_info to list the line we stopped in. */
-void (*print_frame_info_listing_hook) PARAMS ((struct symtab * s, int line,
- int stopline, int noerror));
+void (*deprecated_print_frame_info_listing_hook) (struct symtab * s, int line,
+ int stopline, int noerror);
/* Replaces most of query. */
-int (*query_hook) PARAMS ((const char *, va_list));
+int (*deprecated_query_hook) (const char *, va_list);
/* Replaces most of warning. */
-void (*warning_hook) PARAMS ((const char *, va_list));
+void (*deprecated_warning_hook) (const char *, va_list);
-/* 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
- string that might be (for example) a message for the user to type in a
- sequence of commands to be executed at a breakpoint. If this function
- calls back to a GUI, it might take this opportunity to pop up a text
- interaction window with this message. Next, readline_hook is called
- with a prompt that is emitted prior to collecting the user input.
- It can be called multiple times. Finally, readline_end_hook is called
- to notify the GUI that we are done with the interaction window and it
- can close it. */
+/* These three functions support getting lines of text from the user.
+ They are used in sequence. First deprecated_readline_begin_hook is
+ called with a text string that might be (for example) a message for
+ the user to type in a sequence of commands to be executed at a
+ breakpoint. If this function calls back to a GUI, it might take
+ this opportunity to pop up a text interaction window with this
+ message. Next, deprecated_readline_hook is called with a prompt
+ that is emitted prior to collecting the user input. It can be
+ called multiple times. Finally, deprecated_readline_end_hook is
+ called to notify the GUI that we are done with the interaction
+ window and it can close it. */
-void (*readline_begin_hook) PARAMS ((char *,...));
-char *(*readline_hook) PARAMS ((char *));
-void (*readline_end_hook) PARAMS ((void));
+void (*deprecated_readline_begin_hook) (char *, ...);
+char *(*deprecated_readline_hook) (char *);
+void (*deprecated_readline_end_hook) (void);
/* Called as appropriate to notify the interface of the specified breakpoint
conditions. */
-void (*create_breakpoint_hook) PARAMS ((struct breakpoint * bpt));
-void (*delete_breakpoint_hook) PARAMS ((struct breakpoint * bpt));
-void (*modify_breakpoint_hook) PARAMS ((struct breakpoint * bpt));
+void (*deprecated_create_breakpoint_hook) (struct breakpoint * bpt);
+void (*deprecated_delete_breakpoint_hook) (struct breakpoint * bpt);
+void (*deprecated_modify_breakpoint_hook) (struct breakpoint * bpt);
/* Called as appropriate to notify the interface that we have attached
to or detached from an already running process. */
-void (*attach_hook) PARAMS ((void));
-void (*detach_hook) PARAMS ((void));
+void (*deprecated_attach_hook) (void);
+void (*deprecated_detach_hook) (void);
/* Called during long calculations to allow GUI to repair window damage, and to
check for stop buttons, etc... */
-void (*interactive_hook) PARAMS ((void));
+void (*deprecated_interactive_hook) (void);
/* Called when the registers have changed, as a hint to a GUI
to minimize window update. */
-void (*registers_changed_hook) PARAMS ((void));
+void (*deprecated_registers_changed_hook) (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));
+void (*deprecated_register_changed_hook) (int regno);
/* Tell the GUI someone changed LEN bytes of memory at ADDR */
-void (*memory_changed_hook) PARAMS ((CORE_ADDR addr, int len));
+void (*deprecated_memory_changed_hook) (CORE_ADDR addr, int len);
/* Called when going to wait for the target. Usually allows the GUI to run
while waiting for target events. */
-int (*target_wait_hook) PARAMS ((int pid, struct target_waitstatus * status));
+ptid_t (*deprecated_target_wait_hook) (ptid_t ptid,
+ struct target_waitstatus * status);
/* Used by UI as a wrapper around command execution. May do various things
like enabling/disabling buttons, etc... */
-void (*call_command_hook) PARAMS ((struct cmd_list_element * c, char *cmd,
- int from_tty));
+void (*deprecated_call_command_hook) (struct cmd_list_element * c, char *cmd,
+ int from_tty);
/* Called after a `set' command has finished. Is only run if the
`set' command succeeded. */
-void (*set_hook) PARAMS ((struct cmd_list_element *c));
+void (*deprecated_set_hook) (struct cmd_list_element * c);
/* Called when the current thread changes. Argument is thread id. */
-void (*context_hook) PARAMS ((int id));
+void (*deprecated_context_hook) (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. */
-NORETURN void (*error_hook)
-PARAMS ((void)) ATTR_NORETURN;
+void (*deprecated_error_hook) (void);
\f
/* One should use catch_errors rather than manipulating these
directly. */
#if defined(HAVE_SIGSETJMP)
#define SIGJMP_BUF sigjmp_buf
-#define SIGSETJMP(buf) sigsetjmp(buf, 1)
-#define SIGLONGJMP(buf,val) siglongjmp(buf,val)
+#define SIGSETJMP(buf) sigsetjmp((buf), 1)
+#define SIGLONGJMP(buf,val) siglongjmp((buf), (val))
#else
#define SIGJMP_BUF jmp_buf
#define SIGSETJMP(buf) setjmp(buf)
-#define SIGLONGJMP(buf,val) longjmp(buf,val)
+#define SIGLONGJMP(buf,val) longjmp((buf), (val))
#endif
-/* Where to go for return_to_top_level. */
+/* Where to go for throw_exception(). */
static SIGJMP_BUF *catch_return;
/* Return for reason REASON to the nearest containing catch_errors(). */
NORETURN void
-return_to_top_level (reason)
- enum return_reason reason;
+throw_exception (enum return_reason reason)
{
quit_flag = 0;
immediate_quit = 0;
disable_current_display ();
do_cleanups (ALL_CLEANUPS);
- if (event_loop_p && target_can_async_p () && !target_executing)
+ if (target_can_async_p () && !target_executing)
do_exec_cleanups (ALL_CLEANUPS);
- if (event_loop_p && sync_execution)
+ if (sync_execution)
do_exec_error_cleanups (ALL_CLEANUPS);
if (annotation_level > 1)
to that call via setjmp's return value. Note that REASON can't
be zero, by definition in defs.h. */
- (NORETURN void) SIGLONGJMP (*catch_return, (int)reason);
+ (NORETURN void) SIGLONGJMP (*catch_return, (int) reason);
}
-/* Call FUNC with arg ARGS, catching any errors. If there is no
- error, return the value returned by FUNC. If there is an error,
- print ERRSTRING, print the specific error message, then return
- zero.
+/* Call FUNC() with args FUNC_UIOUT and FUNC_ARGS, catching any
+ errors. Set FUNC_CAUGHT to an ``enum return_reason'' if the
+ function is aborted (using throw_exception() or zero if the
+ function returns normally. Set FUNC_VAL to the value returned by
+ the function or 0 if the function was aborted.
Must not be called with immediate_quit in effect (bad things might
happen, say we got a signal in the middle of a memcpy to quit_return).
code also randomly used a SET_TOP_LEVEL macro that directly
initialize the longjmp buffers. */
-/* MAYBE: cagney/1999-11-05: Should the catch_erros and cleanups code
+/* MAYBE: cagney/1999-11-05: Should the catch_errors and cleanups code
be consolidated into a single file instead of being distributed
between utils.c and top.c? */
-int
-catch_errors (func, args, errstring, mask)
- catch_errors_ftype *func;
- PTR args;
- char *errstring;
- return_mask mask;
+static void
+catcher (catch_exceptions_ftype *func,
+ struct ui_out *func_uiout,
+ void *func_args,
+ int *func_val,
+ enum return_reason *func_caught,
+ char *errstring,
+ char **gdberrmsg,
+ return_mask mask)
{
SIGJMP_BUF *saved_catch;
SIGJMP_BUF catch;
- int val;
struct cleanup *saved_cleanup_chain;
char *saved_error_pre_print;
char *saved_quit_pre_print;
+ struct ui_out *saved_uiout;
/* Return value from SIGSETJMP(): enum return_reason if error or
quit caught, 0 otherwise. */
int caught;
+ /* Return value from FUNC(): Hopefully non-zero. Explicitly set to
+ zero if an error quit was caught. */
+ int val;
+
/* Override error/quit messages during FUNC. */
saved_error_pre_print = error_pre_print;
if (mask & RETURN_MASK_QUIT)
quit_pre_print = errstring;
+ /* Override the global ``struct ui_out'' builder. */
+
+ saved_uiout = uiout;
+ uiout = func_uiout;
+
/* Prevent error/quit during FUNC from calling cleanups established
prior to here. */
catch_return = &catch;
caught = SIGSETJMP (catch);
if (!caught)
- val = (*func) (args);
+ val = (*func) (func_uiout, func_args);
+ else
+ {
+ val = 0;
+ /* If caller wants a copy of the low-level error message, make one.
+ This is used in the case of a silent error whereby the caller
+ may optionally want to issue the message. */
+ if (gdberrmsg)
+ *gdberrmsg = error_last_message ();
+ }
catch_return = saved_catch;
- /* FIXME: cagney/1999-11-05: A correct FUNC implementaton will
+ /* FIXME: cagney/1999-11-05: A correct FUNC implementation will
clean things up (restoring the cleanup chain) to the state they
- were just prior to the call. Unfortunatly, many FUNC's are not
+ were just prior to the call. Unfortunately, many FUNC's are not
that well behaved. This could be fixed by adding either a
do_cleanups call (to cover the problem) or an assertion check to
detect bad FUNCs code. */
- /* Restore the cleanup chain and error/quit messages to their
- original states. */
+ /* Restore the cleanup chain, the error/quit messages, and the uiout
+ builder, to their original states. */
restore_cleanups (saved_cleanup_chain);
+ uiout = saved_uiout;
+
if (mask & RETURN_MASK_QUIT)
quit_pre_print = saved_quit_pre_print;
if (mask & RETURN_MASK_ERROR)
error_pre_print = saved_error_pre_print;
- /* Return normally if no error/quit event occurred. */
+ /* Return normally if no error/quit event occurred or this catcher
+ can handle this exception. The caller analyses the func return
+ values. */
- if (!caught)
- return val;
+ if (!caught || (mask & RETURN_MASK (caught)))
+ {
+ *func_val = val;
+ *func_caught = caught;
+ return;
+ }
- /* If the caller didn't request that the event be caught, relay the
+ /* The caller didn't request that the event be caught, relay the
event to the next containing catch_errors(). */
- if (!(mask & RETURN_MASK (caught)))
- return_to_top_level (caught);
-
- /* Tell the caller that an event was caught.
+ throw_exception (caught);
+}
- FIXME: nsd/2000-02-22: When MASK is RETURN_MASK_ALL, the caller
- can't tell what type of event occurred.
+int
+catch_exceptions (struct ui_out *uiout,
+ catch_exceptions_ftype *func,
+ void *func_args,
+ char *errstring,
+ return_mask mask)
+{
+ int val;
+ enum return_reason caught;
+ catcher (func, uiout, func_args, &val, &caught, errstring, NULL, mask);
+ gdb_assert (val >= 0);
+ gdb_assert (caught <= 0);
+ if (caught < 0)
+ return caught;
+ return val;
+}
- A possible fix is to add a new interface, catch_event(), that
- returns enum return_reason after catching an error or a quit.
+int
+catch_exceptions_with_msg (struct ui_out *uiout,
+ catch_exceptions_ftype *func,
+ void *func_args,
+ char *errstring,
+ char **gdberrmsg,
+ return_mask mask)
+{
+ int val;
+ enum return_reason caught;
+ catcher (func, uiout, func_args, &val, &caught, errstring, gdberrmsg, mask);
+ gdb_assert (val >= 0);
+ gdb_assert (caught <= 0);
+ if (caught < 0)
+ return caught;
+ return val;
+}
- When returning normally, i.e. without catching an error or a
- quit, catch_event() could return RETURN_NORMAL, which would be
- added to enum return_reason. FUNC would return information
- exclusively via ARGS.
+struct catch_errors_args
+{
+ catch_errors_ftype *func;
+ void *func_args;
+};
- Alternatively, normal catch_event() could return FUNC's return
- value. The caller would need to be aware of potential overlap
- with enum return_reason, which could be publicly restricted to
- negative values to simplify return value processing in FUNC and
- in the caller. */
+static int
+do_catch_errors (struct ui_out *uiout, void *data)
+{
+ struct catch_errors_args *args = data;
+ return args->func (args->func_args);
+}
- return 0;
+int
+catch_errors (catch_errors_ftype *func, void *func_args, char *errstring,
+ return_mask mask)
+{
+ int val;
+ enum return_reason caught;
+ struct catch_errors_args args;
+ args.func = func;
+ args.func_args = func_args;
+ catcher (do_catch_errors, uiout, &args, &val, &caught, errstring,
+ NULL, mask);
+ if (caught != 0)
+ return 0;
+ return val;
}
struct captured_command_args
/* FIXME: cagney/1999-11-07: Technically this do_cleanups() call
isn't needed. Instead an assertion check could be made that
simply confirmed that the called function correctly cleaned up
- after its self. Unfortunatly, old code (prior to 1999-11-04) in
+ after itself. Unfortunately, old code (prior to 1999-11-04) in
main.c was calling SET_TOP_LEVEL(), calling the command function,
and then *always* calling do_cleanups(). For the moment we
remain ``bug compatible'' with that old code.. */
}
int
-catch_command_errors (catch_command_errors_ftype *command,
+catch_command_errors (catch_command_errors_ftype * command,
char *arg, int from_tty, return_mask mask)
{
struct captured_command_args args;
/* Handler for SIGHUP. */
#ifdef SIGHUP
-static void
-disconnect (signo)
- int signo;
-{
- catch_errors (quit_cover, NULL,
- "Could not kill the program being debugged", RETURN_MASK_ALL);
- signal (SIGHUP, SIG_DFL);
- kill (getpid (), SIGHUP);
-}
-
-/* Just a little helper function for disconnect(). */
-
/* 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)
- PTR s;
+quit_cover (void *s)
{
caution = 0; /* Throw caution to the wind -- we're exiting.
This prevents asking the user dumb questions. */
/* Clean up on error during a "source" command (or execution of a
user-defined command). */
-static void
-source_cleanup (stream)
- FILE *stream;
+void
+do_restore_instream_cleanup (void *stream)
{
/* Restore the previous input stream. */
instream = stream;
/* Read commands from STREAM. */
void
-read_command_file (stream)
- FILE *stream;
+read_command_file (FILE *stream)
{
struct cleanup *cleanups;
- cleanups = make_cleanup ((make_cleanup_func) source_cleanup, instream);
+ cleanups = make_cleanup (do_restore_instream_cleanup, instream);
instream = stream;
command_loop ();
do_cleanups (cleanups);
}
\f
-extern void init_proc PARAMS ((void));
-
-void (*pre_init_ui_hook) PARAMS ((void));
+void (*pre_init_ui_hook) (void);
+#ifdef __MSDOS__
void
-gdb_init (argv0)
- char *argv0;
+do_chdir_cleanup (void *old_dir)
{
- if (pre_init_ui_hook)
- pre_init_ui_hook ();
-
- /* Run the init function of each source file */
-
- getcwd (gdb_dirbuf, sizeof (gdb_dirbuf));
- current_directory = gdb_dirbuf;
-
-#ifdef __MSDOS__
- /* Make sure we return to the original directory upon exit, come
- what may, since the OS doesn't do that for us. */
- make_final_cleanup ((make_cleanup_func) chdir, strsave (current_directory));
+ chdir (old_dir);
+ xfree (old_dir);
+}
#endif
- init_cmd_lists (); /* This needs to be done first */
- initialize_targets (); /* Setup target_terminal macros for utils.c */
- initialize_utils (); /* Make errors and warnings possible */
- initialize_all_files ();
- initialize_current_architecture ();
- init_main (); /* But that omits this file! Do it now */
+/* Execute the line P as a command.
+ Pass FROM_TTY as second argument to the defining function. */
- /* 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 (event_loop_p)
- async_init_signals ();
- else
- init_signals ();
+void
+execute_command (char *p, int from_tty)
+{
+ struct cmd_list_element *c;
+ enum language flang;
+ static int warned = 0;
+ char *line;
+
+ free_all_values ();
- /* 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
- or implicitly set by reading an executable during startup. */
- set_language (language_c);
- expected_language = current_language; /* don't warn about the change. */
+ /* Force cleanup of any alloca areas if using C alloca instead of
+ a builtin alloca. */
+ alloca (0);
-#ifdef UI_OUT
- /* Install the default UI */
- uiout = cli_out_new (gdb_stdout);
-#endif
+ /* This can happen when command_line_input hits end of file. */
+ if (p == NULL)
+ return;
+
+ serial_log_command (p);
-#ifdef UI_OUT
- /* All the interpreters should have had a look at things by now.
- Initialize the selected interpreter. */
- if (interpreter_p && !init_ui_hook)
+ while (*p == ' ' || *p == '\t')
+ p++;
+ if (*p)
{
- fprintf_unfiltered (gdb_stderr, "Interpreter `%s' unrecognized.\n",
- interpreter_p);
- exit (1);
- }
-#endif
+ char *arg;
+ line = p;
- if (init_ui_hook)
- init_ui_hook (argv0);
-}
+ c = lookup_cmd (&p, cmdlist, "", 0, 1);
-/* Allocate, initialize a new command line structure for one of the
- control commands (if/while). */
+ /* If the target is running, we allow only a limited set of
+ commands. */
+ if (target_can_async_p () && target_executing)
+ if (strcmp (c->name, "help") != 0
+ && strcmp (c->name, "pwd") != 0
+ && strcmp (c->name, "show") != 0
+ && strcmp (c->name, "stop") != 0)
+ error ("Cannot execute this command while the target is running.");
-static struct command_line *
-build_command_line (type, args)
- enum command_control_type type;
- char *args;
-{
- struct command_line *cmd;
-
- if (args == NULL)
- error ("if/while commands require arguments.\n");
-
- cmd = (struct command_line *) xmalloc (sizeof (struct command_line));
- cmd->next = NULL;
- cmd->control_type = type;
-
- cmd->body_count = 1;
- cmd->body_list
- = (struct command_line **) xmalloc (sizeof (struct command_line *)
- * cmd->body_count);
- memset (cmd->body_list, 0, sizeof (struct command_line *) * cmd->body_count);
- cmd->line = savestring (args, strlen (args));
- return cmd;
-}
+ /* Pass null arg rather than an empty one. */
+ arg = *p ? p : 0;
-/* Build and return a new command structure for the control commands
- such as "if" and "while". */
+ /* FIXME: cagney/2002-02-02: The c->type test is pretty dodgy
+ while the is_complete_command(cfunc) test is just plain
+ bogus. They should both be replaced by a test of the form
+ c->strip_trailing_white_space_p. */
+ /* NOTE: cagney/2002-02-02: The function.cfunc in the below
+ can't be replaced with func. This is because it is the
+ cfunc, and not the func, that has the value that the
+ is_complete_command hack is testing for. */
+ /* Clear off trailing whitespace, except for set and complete
+ command. */
+ if (arg
+ && c->type != set_cmd
+ && !is_complete_command (c))
+ {
+ p = arg + strlen (arg) - 1;
+ while (p >= arg && (*p == ' ' || *p == '\t'))
+ p--;
+ *(p + 1) = '\0';
+ }
-static struct command_line *
-get_command_line (type, arg)
- enum command_control_type type;
- char *arg;
-{
- struct command_line *cmd;
- struct cleanup *old_chain = NULL;
+ /* If this command has been pre-hooked, run the hook first. */
+ execute_cmd_pre_hook (c);
- /* Allocate and build a new command line structure. */
- cmd = build_command_line (type, arg);
+ if (c->flags & DEPRECATED_WARN_USER)
+ deprecated_cmd_warning (&line);
- old_chain = make_cleanup ((make_cleanup_func) free_command_lines, &cmd);
+ if (c->class == class_user)
+ execute_user_command (c, arg);
+ else if (c->type == set_cmd || c->type == show_cmd)
+ do_setshow_command (arg, from_tty & caution, c);
+ else if (!cmd_func_p (c))
+ error ("That is not a command, just a help topic.");
+ else if (deprecated_call_command_hook)
+ deprecated_call_command_hook (c, arg, from_tty & caution);
+ else
+ cmd_func (c, arg, from_tty & caution);
+
+ /* If this command has been post-hooked, run the hook last. */
+ execute_cmd_post_hook (c);
- /* Read in the body of this command. */
- if (recurse_read_control_structure (cmd) == invalid_control)
- {
- warning ("error reading in control structure\n");
- do_cleanups (old_chain);
- return NULL;
}
- discard_cleanups (old_chain);
- return cmd;
-}
-
-/* Recursively print a command (including full control structures). */
-#ifdef UI_OUT
-void
-print_command_lines (uiout, cmd, depth)
- struct ui_out *uiout;
- struct command_line *cmd;
- unsigned int depth;
-{
- struct command_line *list;
-
- list = cmd;
- while (list)
+ /* Tell the user if the language has changed (except first time). */
+ if (current_language != expected_language)
{
-
- if (depth)
- ui_out_spaces (uiout, 2 * depth);
-
- /* A simple command, print it and continue. */
- if (list->control_type == simple_control)
+ if (language_mode == language_mode_auto)
{
- ui_out_field_string (uiout, NULL, list->line);
- ui_out_text (uiout, "\n");
- list = list->next;
- continue;
+ language_info (1); /* Print what changed. */
}
+ warned = 0;
+ }
- /* loop_continue to jump to the start of a while loop, print it
- and continue. */
- if (list->control_type == continue_control)
- {
- ui_out_field_string (uiout, NULL, "loop_continue");
- ui_out_text (uiout, "\n");
- list = list->next;
- continue;
- }
+ /* Warn the user if the working language does not match the
+ language of the current frame. Only warn the user if we are
+ actually running the program, i.e. there is a stack. */
+ /* FIXME: This should be cacheing the frame and only running when
+ the frame changes. */
- /* loop_break to break out of a while loop, print it and continue. */
- if (list->control_type == break_control)
+ if (target_has_stack)
+ {
+ flang = get_frame_language ();
+ if (!warned
+ && flang != language_unknown
+ && flang != current_language->la_language)
{
- ui_out_field_string (uiout, NULL, "loop_break");
- ui_out_text (uiout, "\n");
- list = list->next;
- continue;
+ printf_filtered ("%s\n", lang_frame_mismatch_warn);
+ warned = 1;
}
-
- /* A while command. Recursively print its subcommands and continue. */
- if (list->control_type == while_control)
- {
- ui_out_text (uiout, "while ");
- ui_out_field_fmt (uiout, NULL, "while %s", list->line);
- ui_out_text (uiout, "\n");
- print_command_lines (uiout, *list->body_list, depth + 1);
- ui_out_field_string (uiout, NULL, "end");
- if (depth)
- ui_out_spaces (uiout, 2 * depth);
- ui_out_text (uiout, "end\n");
- list = list->next;
- continue;
- }
-
- /* An if command. Recursively print both arms before continueing. */
- if (list->control_type == if_control)
- {
- ui_out_text (uiout, "if ");
- ui_out_field_fmt (uiout, NULL, "if %s", list->line);
- ui_out_text (uiout, "\n");
- /* The true arm. */
- print_command_lines (uiout, list->body_list[0], depth + 1);
-
- /* Show the false arm if it exists. */
- if (list->body_count == 2)
- {
- if (depth)
- ui_out_spaces (uiout, 2 * depth);
- ui_out_field_string (uiout, NULL, "else");
- ui_out_text (uiout, "else\n");
- print_command_lines (uiout, list->body_list[1], depth + 1);
- }
-
- ui_out_field_string (uiout, NULL, "end");
- if (depth)
- ui_out_spaces (uiout, 2 * depth);
- ui_out_text (uiout, "end\n");
- list = list->next;
- continue;
- }
-
- /* ignore illegal command type and try next */
- list = list->next;
- } /* while (list) */
-}
-#else
-void
-print_command_line (cmd, depth, stream)
- struct command_line *cmd;
- unsigned int depth;
- struct ui_file *stream;
-{
- unsigned int i;
-
- if (depth)
- {
- for (i = 0; i < depth; i++)
- fputs_filtered (" ", stream);
- }
-
- /* A simple command, print it and return. */
- if (cmd->control_type == simple_control)
- {
- fputs_filtered (cmd->line, stream);
- fputs_filtered ("\n", stream);
- return;
- }
-
- /* loop_continue to jump to the start of a while loop, print it
- and return. */
- if (cmd->control_type == continue_control)
- {
- 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", stream);
- return;
- }
-
- /* A while command. Recursively print its subcommands before returning. */
- if (cmd->control_type == while_control)
- {
- struct command_line *list;
- 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, stream);
- list = list->next;
- }
- }
-
- /* An if command. Recursively print both arms before returning. */
- if (cmd->control_type == if_control)
- {
- 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, stream);
-
- /* Show the false arm if it exists. */
- if (cmd->body_count == 2)
- {
- if (depth)
- {
- for (i = 0; i < depth; i++)
- fputs_filtered (" ", stream);
- }
- 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 (" ", stream);
- }
- fputs_filtered ("end\n", stream);
- }
-}
-#endif
-
-/* Execute the command in CMD. */
-
-enum command_control_type
-execute_control_command (cmd)
- struct command_line *cmd;
-{
- struct expression *expr;
- struct command_line *current;
- struct cleanup *old_chain = 0;
- value_ptr val;
- value_ptr val_mark;
- int loop;
- enum command_control_type ret;
- char *new_line;
-
- switch (cmd->control_type)
- {
- case simple_control:
- /* A simple command, execute it and return. */
- new_line = insert_args (cmd->line);
- if (!new_line)
- return invalid_control;
- old_chain = make_cleanup ((make_cleanup_func) free_current_contents,
- &new_line);
- execute_command (new_line, 0);
- ret = cmd->control_type;
- break;
-
- case continue_control:
- case break_control:
- /* Return for "continue", and "break" so we can either
- continue the loop at the top, or break out. */
- ret = cmd->control_type;
- break;
-
- case while_control:
- {
- /* Parse the loop control expression for the while statement. */
- new_line = insert_args (cmd->line);
- if (!new_line)
- return invalid_control;
- old_chain = make_cleanup ((make_cleanup_func) free_current_contents,
- &new_line);
- expr = parse_expression (new_line);
- make_cleanup ((make_cleanup_func) free_current_contents, &expr);
-
- ret = simple_control;
- loop = 1;
-
- /* Keep iterating so long as the expression is true. */
- while (loop == 1)
- {
- int cond_result;
-
- QUIT;
-
- /* Evaluate the expression. */
- val_mark = value_mark ();
- val = evaluate_expression (expr);
- cond_result = value_true (val);
- value_free_to_mark (val_mark);
-
- /* If the value is false, then break out of the loop. */
- if (!cond_result)
- break;
-
- /* Execute the body of the while statement. */
- current = *cmd->body_list;
- while (current)
- {
- ret = execute_control_command (current);
-
- /* If we got an error, or a "break" command, then stop
- looping. */
- if (ret == invalid_control || ret == break_control)
- {
- loop = 0;
- break;
- }
-
- /* If we got a "continue" command, then restart the loop
- at this point. */
- if (ret == continue_control)
- break;
-
- /* Get the next statement. */
- current = current->next;
- }
- }
-
- /* Reset RET so that we don't recurse the break all the way down. */
- if (ret == break_control)
- ret = simple_control;
-
- break;
- }
-
- case if_control:
- {
- new_line = insert_args (cmd->line);
- if (!new_line)
- return invalid_control;
- 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 ((make_cleanup_func) free_current_contents, &expr);
-
- current = NULL;
- ret = simple_control;
-
- /* Evaluate the conditional. */
- val_mark = value_mark ();
- val = evaluate_expression (expr);
-
- /* Choose which arm to take commands from based on the value of the
- conditional expression. */
- if (value_true (val))
- current = *cmd->body_list;
- else if (cmd->body_count == 2)
- current = *(cmd->body_list + 1);
- value_free_to_mark (val_mark);
-
- /* Execute commands in the given arm. */
- while (current)
- {
- ret = execute_control_command (current);
-
- /* If we got an error, get out. */
- if (ret != simple_control)
- break;
-
- /* Get the next statement in the body. */
- current = current->next;
- }
-
- break;
- }
-
- default:
- warning ("Invalid control type in command structure.");
- return invalid_control;
- }
-
- if (old_chain)
- do_cleanups (old_chain);
-
- return ret;
-}
-
-/* "while" command support. Executes a body of statements while the
- loop condition is nonzero. */
-
-static void
-while_command (arg, from_tty)
- char *arg;
- int from_tty;
-{
- struct command_line *command = NULL;
-
- control_level = 1;
- command = get_command_line (while_control, arg);
-
- if (command == NULL)
- return;
-
- execute_control_command (command);
- free_command_lines (&command);
-}
-
-/* "if" command support. Execute either the true or false arm depending
- on the value of the if conditional. */
-
-static void
-if_command (arg, from_tty)
- char *arg;
- int from_tty;
-{
- struct command_line *command = NULL;
-
- control_level = 1;
- command = get_command_line (if_control, arg);
-
- if (command == NULL)
- return;
-
- execute_control_command (command);
- free_command_lines (&command);
-}
-
-/* Cleanup */
-static void
-arg_cleanup ()
-{
- struct user_args *oargs = user_args;
- if (!user_args)
- internal_error ("Internal error, arg_cleanup called with no user args.\n");
-
- user_args = user_args->next;
- free (oargs);
-}
-
-/* Bind the incomming arguments for a user defined command to
- $arg0, $arg1 ... $argMAXUSERARGS. */
-
-static struct cleanup *
-setup_user_args (p)
- char *p;
-{
- struct user_args *args;
- struct cleanup *old_chain;
- unsigned int arg_count = 0;
-
- args = (struct user_args *) xmalloc (sizeof (struct user_args));
- memset (args, 0, sizeof (struct user_args));
-
- args->next = user_args;
- user_args = args;
-
- old_chain = make_cleanup ((make_cleanup_func) arg_cleanup, 0);
-
- if (p == NULL)
- return old_chain;
-
- while (*p)
- {
- char *start_arg;
- int squote = 0;
- int dquote = 0;
- int bsquote = 0;
-
- if (arg_count >= MAXUSERARGS)
- {
- error ("user defined function may only have %d arguments.\n",
- MAXUSERARGS);
- return old_chain;
- }
-
- /* Strip whitespace. */
- while (*p == ' ' || *p == '\t')
- p++;
-
- /* P now points to an argument. */
- start_arg = p;
- user_args->a[arg_count].arg = p;
-
- /* Get to the end of this argument. */
- while (*p)
- {
- if (((*p == ' ' || *p == '\t')) && !squote && !dquote && !bsquote)
- break;
- else
- {
- if (bsquote)
- bsquote = 0;
- else if (*p == '\\')
- bsquote = 1;
- else if (squote)
- {
- if (*p == '\'')
- squote = 0;
- }
- else if (dquote)
- {
- if (*p == '"')
- dquote = 0;
- }
- else
- {
- if (*p == '\'')
- squote = 1;
- else if (*p == '"')
- dquote = 1;
- }
- p++;
- }
- }
-
- user_args->a[arg_count].len = p - start_arg;
- arg_count++;
- user_args->count++;
- }
- return old_chain;
-}
-
-/* Given character string P, return a point to the first argument ($arg),
- or NULL if P contains no arguments. */
-
-static char *
-locate_arg (p)
- char *p;
-{
- while ((p = strchr (p, '$')))
- {
- if (strncmp (p, "$arg", 4) == 0 && isdigit (p[4]))
- return p;
- p++;
- }
- return NULL;
-}
-
-/* Insert the user defined arguments stored in user_arg into the $arg
- arguments found in line, with the updated copy being placed into nline. */
-
-static char *
-insert_args (line)
- char *line;
-{
- char *p, *save_line, *new_line;
- unsigned len, i;
-
- /* First we need to know how much memory to allocate for the new line. */
- save_line = line;
- len = 0;
- while ((p = locate_arg (line)))
- {
- len += p - line;
- i = p[4] - '0';
-
- if (i >= user_args->count)
- {
- error ("Missing argument %d in user function.\n", i);
- return NULL;
- }
- len += user_args->a[i].len;
- line = p + 5;
- }
-
- /* Don't forget the tail. */
- len += strlen (line);
-
- /* Allocate space for the new line and fill it in. */
- new_line = (char *) xmalloc (len + 1);
- if (new_line == NULL)
- return NULL;
-
- /* Restore pointer to beginning of old line. */
- line = save_line;
-
- /* Save pointer to beginning of new line. */
- save_line = new_line;
-
- while ((p = locate_arg (line)))
- {
- int i, len;
-
- memcpy (new_line, line, p - line);
- new_line += p - line;
- i = p[4] - '0';
-
- len = user_args->a[i].len;
- if (len)
- {
- memcpy (new_line, user_args->a[i].arg, len);
- new_line += len;
- }
- line = p + 5;
- }
- /* Don't forget the tail. */
- strcpy (new_line, line);
-
- /* Return a pointer to the beginning of the new line. */
- return save_line;
-}
-
-void
-execute_user_command (c, args)
- struct cmd_list_element *c;
- char *args;
-{
- register struct command_line *cmdlines;
- struct cleanup *old_chain;
- enum command_control_type ret;
-
- old_chain = setup_user_args (args);
-
- cmdlines = c->user_commands;
- if (cmdlines == 0)
- /* Null command */
- return;
-
- /* Set the instream to 0, indicating execution of a
- user-defined function. */
- old_chain = make_cleanup ((make_cleanup_func) source_cleanup, instream);
- instream = (FILE *) 0;
- while (cmdlines)
- {
- ret = execute_control_command (cmdlines);
- if (ret != simple_control && ret != break_control)
- {
- warning ("Error in control structure.\n");
- break;
- }
- cmdlines = cmdlines->next;
- }
- do_cleanups (old_chain);
-}
-
-/* Execute the line P as a command.
- Pass FROM_TTY as second argument to the defining function. */
-
-void
-execute_command (p, from_tty)
- char *p;
- int from_tty;
-{
- register struct cmd_list_element *c;
- register enum language flang;
- static int warned = 0;
- char *line;
- /* FIXME: These should really be in an appropriate header file */
- extern void serial_log_command PARAMS ((const char *));
-
- 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;
-
- serial_log_command (p);
-
- while (*p == ' ' || *p == '\t')
- p++;
- if (*p)
- {
- char *arg;
- line = p;
-
- c = lookup_cmd (&p, cmdlist, "", 0, 1);
-
- /* If the target is running, we allow only a limited set of
- commands. */
- if (event_loop_p && target_can_async_p () && 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;
-
- /* Clear off trailing whitespace, except for set and complete command. */
- if (arg && c->type != set_cmd && c->function.cfunc != complete_command)
- {
- p = arg + strlen (arg) - 1;
- while (p >= arg && (*p == ' ' || *p == '\t'))
- p--;
- *(p + 1) = '\0';
- }
-
- /* If this command has been hooked, run the hook first. */
- if (c->hook)
- execute_user_command (c->hook, (char *) 0);
-
- if (c->flags & DEPRECATED_WARN_USER)
- deprecated_cmd_warning (&line);
-
- if (c->class == class_user)
- execute_user_command (c, arg);
- else if (c->type == set_cmd || c->type == show_cmd)
- do_setshow_command (arg, from_tty & caution, c);
- else if (c->function.cfunc == NO_FUNCTION)
- error ("That is not a command, just a help topic.");
- else if (call_command_hook)
- call_command_hook (c, arg, from_tty & caution);
- else
- (*c->function.cfunc) (arg, from_tty & caution);
- }
-
- /* Tell the user if the language has changed (except first time). */
- if (current_language != expected_language)
- {
- if (language_mode == language_mode_auto)
- {
- language_info (1); /* Print what changed. */
- }
- warned = 0;
- }
-
- /* Warn the user if the working language does not match the
- language of the current frame. Only warn the user if we are
- actually running the program, i.e. there is a stack. */
- /* FIXME: This should be cacheing the frame and only running when
- the frame changes. */
-
- if (target_has_stack)
- {
- flang = get_frame_language ();
- if (!warned
- && flang != language_unknown
- && flang != current_language->la_language)
- {
- printf_filtered ("%s\n", lang_frame_mismatch_warn);
- warned = 1;
- }
- }
-}
-
-/* ARGSUSED */
-/* 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;
-{
-}
+ }
+}
/* Read commands from `instream' and execute them
until end of file or error reading instream. */
void
-command_loop ()
+command_loop (void)
{
struct cleanup *old_chain;
char *command;
while (instream && !feof (instream))
{
-#if defined(TUI)
- extern int insert_mode;
-#endif
if (window_hook && instream == stdin)
(*window_hook) (instream, get_prompt ());
quit_flag = 0;
if (instream == stdin && stdin_is_tty)
reinitialize_more_filter ();
- 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
+ old_chain = make_cleanup (null_cleanup, 0);
+
/* 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;
if (display_space)
{
#ifdef HAVE_SBRK
- extern char **environ;
char *lim = (char *) sbrk (0);
-
- space_at_cmd_start = (long) (lim - (char *) &environ);
+ space_at_cmd_start = lim - lim_at_start;
#endif
}
if (display_space)
{
#ifdef HAVE_SBRK
- extern char **environ;
char *lim = (char *) sbrk (0);
- long space_now = lim - (char *) &environ;
+ long space_now = lim - lim_at_start;
long space_diff = space_now - space_at_cmd_start;
printf_unfiltered ("Space used: %ld (%c%ld for this command)\n",
such things as displaying time and space usage. If the user asks
for those, they won't work. */
void
-simplified_command_loop (read_input_func, execute_command_func)
- char *(*read_input_func) (char *);
- void (*execute_command_func) (char *, int);
+simplified_command_loop (char *(*read_input_func) (char *),
+ void (*execute_command_func) (char *, int))
{
struct cleanup *old_chain;
char *command;
quit_flag = 0;
if (instream == stdin && stdin_is_tty)
reinitialize_more_filter ();
- old_chain = make_cleanup ((make_cleanup_func) command_loop_marker, 0);
+ old_chain = make_cleanup (null_cleanup, 0);
/* Get a command-line. */
command = (*read_input_func) (instream == stdin ?
/* Commands call this if they do not want to be repeated by null lines. */
void
-dont_repeat ()
+dont_repeat (void)
{
if (server_command)
return;
A NULL return means end of file. */
char *
-gdb_readline (prompt_arg)
- char *prompt_arg;
+gdb_readline (char *prompt_arg)
{
int c;
char *result;
character position to be off, since the newline we read from
the user is not accounted for. */
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. */
- fputs_unfiltered ("\n", gdb_stdout);
-#endif /* MPW */
gdb_flush (gdb_stdout);
}
if we are called again fgetc will still return EOF and
we'll return NULL then. */
break;
- free (result);
+ xfree (result);
return NULL;
}
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)
static int history_size;
static char *history_filename;
-/* readline uses the word breaks for two things:
- (1) In figuring out where to point the TEXT parameter to the
- rl_completion_entry_function. Since we don't use TEXT for much,
- it doesn't matter a lot what the word breaks are for this purpose, but
- it does affect how much stuff M-? lists.
- (2) If one of the matches contains a word break character, readline
- will quote it. That's why we switch between
- gdb_completer_word_break_characters and
- gdb_completer_command_word_break_characters. I'm not sure when
- we need this behavior (perhaps for funky characters in C++ symbols?). */
-
-/* Variables which are necessary for fancy command line editing. */
-char *gdb_completer_word_break_characters =
-" \t\n!@#$%^&*()+=|~`}{[]\"';:?/>.<,-";
-
-/* When completing on command names, we remove '-' from the list of
- word break characters, since we use it in command names. If the
- readline library sees one in any of the current completion strings,
- it thinks that the string needs to be quoted and automatically supplies
- a leading quote. */
-char *gdb_completer_command_word_break_characters =
-" \t\n!@#$%^&*()+=|~`}{[]\"';:?/>.<,";
-
-/* Characters that can be used to quote completion strings. Note that we
- can't include '"' because the gdb C parser treats such quoted sequences
- as strings. */
-char *gdb_completer_quote_characters =
-"'";
-
-/* Functions that are used as part of the fancy command line editing. */
-
-/* This can be used for functions which don't want to complete on symbols
- but don't want to complete on anything else either. */
-/* ARGSUSED */
-char **
-noop_completer (text, prefix)
- char *text;
- char *prefix;
+/* This is like readline(), but it has some gdb-specific behavior.
+ gdb can use readline in both the synchronous and async modes during
+ a single gdb invocation. At the ordinary top-level prompt we might
+ be using the async readline. That means we can't use
+ rl_pre_input_hook, since it doesn't work properly in async mode.
+ However, for a secondary prompt (" >", such as occurs during a
+ `define'), gdb just calls readline() directly, running it in
+ synchronous mode. So for operate-and-get-next to work in this
+ situation, we have to switch the hooks around. That is what
+ gdb_readline_wrapper is for. */
+char *
+gdb_readline_wrapper (char *prompt)
{
- return NULL;
+ /* Set the hook that works in this case. */
+ if (after_char_processing_hook)
+ {
+ rl_pre_input_hook = (Function *) after_char_processing_hook;
+ after_char_processing_hook = NULL;
+ }
+
+ return readline (prompt);
}
-/* Complete on filenames. */
-char **
-filename_completer (text, word)
- char *text;
- char *word;
-{
- /* From readline. */
- extern char *filename_completion_function PARAMS ((char *, int));
- int subsequent_name;
- char **return_val;
- int return_val_used;
- int return_val_alloced;
-
- return_val_used = 0;
- /* Small for testing. */
- return_val_alloced = 1;
- return_val = (char **) xmalloc (return_val_alloced * sizeof (char *));
-
- subsequent_name = 0;
- while (1)
- {
- char *p;
- p = filename_completion_function (text, subsequent_name);
- if (return_val_used >= return_val_alloced)
- {
- return_val_alloced *= 2;
- return_val =
- (char **) xrealloc (return_val,
- return_val_alloced * sizeof (char *));
- }
- if (p == NULL)
- {
- return_val[return_val_used++] = p;
- break;
- }
- /* Like emacs, don't complete on old versions. Especially useful
- in the "source" command. */
- if (p[strlen (p) - 1] == '~')
- continue;
-
- {
- char *q;
- if (word == text)
- /* Return exactly p. */
- return_val[return_val_used++] = p;
- else if (word > text)
- {
- /* Return some portion of p. */
- q = xmalloc (strlen (p) + 5);
- strcpy (q, p + (word - text));
- return_val[return_val_used++] = q;
- free (p);
- }
- else
- {
- /* Return some of TEXT plus p. */
- q = xmalloc (strlen (p) + (text - word) + 5);
- strncpy (q, word, text - word);
- q[text - word] = '\0';
- strcat (q, p);
- return_val[return_val_used++] = q;
- free (p);
- }
- }
- subsequent_name = 1;
- }
-#if 0
- /* There is no way to do this just long enough to affect quote inserting
- without also affecting the next completion. This should be fixed in
- readline. FIXME. */
- /* Insure that readline does the right thing
- with respect to inserting quotes. */
- rl_completer_word_break_characters = "";
-#endif
- return return_val;
-}
-
-/* Here are some useful test cases for completion. FIXME: These should
- be put in the test suite. They should be tested with both M-? and TAB.
-
- "show output-" "radix"
- "show output" "-radix"
- "p" ambiguous (commands starting with p--path, print, printf, etc.)
- "p " ambiguous (all symbols)
- "info t foo" no completions
- "info t " no completions
- "info t" ambiguous ("info target", "info terminal", etc.)
- "info ajksdlfk" no completions
- "info ajksdlfk " no completions
- "info" " "
- "info " ambiguous (all info commands)
- "p \"a" no completions (string constant)
- "p 'a" ambiguous (all symbols starting with a)
- "p b-a" ambiguous (all symbols starting with a)
- "p b-" ambiguous (all symbols)
- "file Make" "file" (word break hard to screw up here)
- "file ../gdb.stabs/we" "ird" (needs to not break word at slash)
- */
-
-/* Generate completions one by one for the completer. Each time we are
- called return another potential completion to the caller.
- line_completion just completes on commands or passes the buck to the
- command's completer function, the stuff specific to symbol completion
- is in make_symbol_completion_list.
-
- TEXT is the caller's idea of the "word" we are looking at.
-
- MATCHES is the number of matches that have currently been collected from
- calling this completion function. When zero, then we need to initialize,
- otherwise the initialization has already taken place and we can just
- return the next potential completion string.
-
- LINE_BUFFER is available to be looked at; it contains the entire text
- of the line. POINT is the offset in that line of the cursor. You
- should pretend that the line ends at POINT.
-
- Returns NULL if there are no more completions, else a pointer to a string
- which is a possible completion, it is the caller's responsibility to
- free the string. */
-
-static char *
-line_completion_function (text, matches, line_buffer, point)
- char *text;
- int matches;
- char *line_buffer;
- int point;
-{
- static char **list = (char **) NULL; /* Cache of completions */
- static int index; /* Next cached completion */
- char *output = NULL;
- char *tmp_command, *p;
- /* Pointer within tmp_command which corresponds to text. */
- char *word;
- struct cmd_list_element *c, *result_list;
-
- if (matches == 0)
- {
- /* The caller is beginning to accumulate a new set of completions, so
- we need to find all of them now, and cache them for returning one at
- a time on future calls. */
-
- if (list)
- {
- /* Free the storage used by LIST, but not by the strings inside.
- This is because rl_complete_internal () frees the strings. */
- free ((PTR) list);
- }
- list = 0;
- index = 0;
-
- /* Choose the default set of word break characters to break completions.
- If we later find out that we are doing completions on command strings
- (as opposed to strings supplied by the individual command completer
- functions, which can be any string) then we will switch to the
- special word break set for command strings, which leaves out the
- '-' character used in some commands. */
-
- rl_completer_word_break_characters =
- gdb_completer_word_break_characters;
-
- /* Decide whether to complete on a list of gdb commands or on symbols. */
- tmp_command = (char *) alloca (point + 1);
- p = tmp_command;
-
- strncpy (tmp_command, line_buffer, point);
- tmp_command[point] = '\0';
- /* Since text always contains some number of characters leading up
- to point, we can find the equivalent position in tmp_command
- by subtracting that many characters from the end of tmp_command. */
- word = tmp_command + point - strlen (text);
-
- if (point == 0)
- {
- /* An empty line we want to consider ambiguous; that is, it
- could be any command. */
- c = (struct cmd_list_element *) -1;
- result_list = 0;
- }
- else
- {
- c = lookup_cmd_1 (&p, cmdlist, &result_list, 1);
- }
-
- /* Move p up to the next interesting thing. */
- while (*p == ' ' || *p == '\t')
- {
- p++;
- }
-
- if (!c)
- {
- /* It is an unrecognized command. So there are no
- possible completions. */
- list = NULL;
- }
- else if (c == (struct cmd_list_element *) -1)
- {
- char *q;
-
- /* lookup_cmd_1 advances p up to the first ambiguous thing, but
- doesn't advance over that thing itself. Do so now. */
- q = p;
- while (*q && (isalnum (*q) || *q == '-' || *q == '_'))
- ++q;
- if (q != tmp_command + point)
- {
- /* There is something beyond the ambiguous
- command, so there are no possible completions. For
- example, "info t " or "info t foo" does not complete
- to anything, because "info t" can be "info target" or
- "info terminal". */
- list = NULL;
- }
- else
- {
- /* We're trying to complete on the command which was ambiguous.
- This we can deal with. */
- if (result_list)
- {
- list = complete_on_cmdlist (*result_list->prefixlist, p,
- word);
- }
- else
- {
- list = complete_on_cmdlist (cmdlist, p, word);
- }
- /* Insure that readline does the right thing with respect to
- inserting quotes. */
- rl_completer_word_break_characters =
- gdb_completer_command_word_break_characters;
- }
- }
- else
- {
- /* We've recognized a full command. */
-
- if (p == tmp_command + point)
- {
- /* There is no non-whitespace in the line beyond the command. */
-
- if (p[-1] == ' ' || p[-1] == '\t')
- {
- /* The command is followed by whitespace; we need to complete
- on whatever comes after command. */
- if (c->prefixlist)
- {
- /* It is a prefix command; what comes after it is
- a subcommand (e.g. "info "). */
- list = complete_on_cmdlist (*c->prefixlist, p, word);
-
- /* Insure that readline does the right thing
- with respect to inserting quotes. */
- rl_completer_word_break_characters =
- gdb_completer_command_word_break_characters;
- }
- else if (c->enums)
- {
- list = complete_on_enum (c->enums, p, word);
- rl_completer_word_break_characters =
- gdb_completer_command_word_break_characters;
- }
- else
- {
- /* It is a normal command; what comes after it is
- completed by the command's completer function. */
- list = (*c->completer) (p, word);
- }
- }
- else
- {
- /* The command is not followed by whitespace; we need to
- complete on the command itself. e.g. "p" which is a
- command itself but also can complete to "print", "ptype"
- etc. */
- char *q;
-
- /* Find the command we are completing on. */
- q = p;
- while (q > tmp_command)
- {
- if (isalnum (q[-1]) || q[-1] == '-' || q[-1] == '_')
- --q;
- else
- break;
- }
-
- list = complete_on_cmdlist (result_list, q, word);
-
- /* Insure that readline does the right thing
- with respect to inserting quotes. */
- rl_completer_word_break_characters =
- gdb_completer_command_word_break_characters;
- }
- }
- else
- {
- /* There is non-whitespace beyond the command. */
-
- if (c->prefixlist && !c->allow_unknown)
- {
- /* It is an unrecognized subcommand of a prefix command,
- e.g. "info adsfkdj". */
- list = NULL;
- }
- else if (c->enums)
- {
- list = complete_on_enum (c->enums, p, word);
- }
- else
- {
- /* It is a normal command. */
- list = (*c->completer) (p, word);
- }
- }
- }
- }
-
- /* If we found a list of potential completions during initialization then
- dole them out one at a time. The vector of completions is NULL
- terminated, so after returning the last one, return NULL (and continue
- to do so) each time we are called after that, until a new list is
- available. */
-
- if (list)
- {
- output = list[index];
- if (output)
- {
- index++;
- }
- }
-
-#if 0
- /* Can't do this because readline hasn't yet checked the word breaks
- for figuring out whether to insert a quote. */
- if (output == NULL)
- /* Make sure the word break characters are set back to normal for the
- next time that readline tries to complete something. */
- rl_completer_word_break_characters =
- gdb_completer_word_break_characters;
-#endif
-
- return (output);
-}
-
-/* Line completion interface function for readline. */
-
-static char *
-readline_line_completion_function (text, matches)
- char *text;
- int matches;
-{
- return line_completion_function (text, matches, rl_line_buffer, rl_point);
-}
-
-/* Skip over a possibly quoted word (as defined by the quote characters
- and word break characters the completer uses). Returns pointer to the
- location after the "word". */
-
-char *
-skip_quoted (str)
- char *str;
-{
- char quote_char = '\0';
- char *scan;
-
- for (scan = str; *scan != '\0'; scan++)
- {
- if (quote_char != '\0')
- {
- /* Ignore everything until the matching close quote char */
- if (*scan == quote_char)
- {
- /* Found matching close quote. */
- scan++;
- break;
- }
- }
- else if (strchr (gdb_completer_quote_characters, *scan))
- {
- /* Found start of a quoted string. */
- quote_char = *scan;
- }
- else if (strchr (gdb_completer_word_break_characters, *scan))
- {
- break;
- }
- }
- return (scan);
-}
-\f
-
-#ifdef STOP_SIGNAL
-static void
-stop_sig (signo)
- int signo;
+\f
+#ifdef STOP_SIGNAL
+static void
+stop_sig (int signo)
{
#if STOP_SIGNAL == SIGTSTP
signal (SIGTSTP, SIG_DFL);
+#if HAVE_SIGPROCMASK
+ {
+ sigset_t zero;
+
+ sigemptyset (&zero);
+ sigprocmask (SIG_SETMASK, &zero, 0);
+ }
+#elif HAVE_SIGSETMASK
sigsetmask (0);
+#endif
kill (getpid (), SIGTSTP);
signal (SIGTSTP, stop_sig);
#else
/* Initialize signal handlers. */
static void
-do_nothing (signo)
- int signo;
+float_handler (int signo)
+{
+ /* This message is based on ANSI C, section 4.7. Note that integer
+ divide by zero causes this, so "float" is a misnomer. */
+ signal (SIGFPE, float_handler);
+ error ("Erroneous arithmetic operation.");
+}
+
+static void
+do_nothing (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
signal (signo, do_nothing);
}
+/* The current saved history number from operate-and-get-next.
+ This is -1 if not valid. */
+static int operate_saved_history = -1;
+
+/* This is put on the appropriate hook and helps operate-and-get-next
+ do its work. */
static void
-init_signals ()
+gdb_rl_operate_and_get_next_completion (void)
{
- signal (SIGINT, request_quit);
+ int delta = where_history () - operate_saved_history;
+ /* The `key' argument to rl_get_previous_history is ignored. */
+ rl_get_previous_history (delta, 0);
+ operate_saved_history = -1;
- /* If SIGTRAP was set to SIG_IGN, then the SIG_IGN will get passed
- to the inferior and breakpoints will be ignored. */
-#ifdef SIGTRAP
- signal (SIGTRAP, SIG_DFL);
-#endif
+ /* readline doesn't automatically update the display for us. */
+ rl_redisplay ();
- /* If we initialize SIGQUIT to SIG_IGN, then the SIG_IGN will get
- passed to the inferior, which we don't want. It would be
- possible to do a "signal (SIGQUIT, SIG_DFL)" after we fork, but
- on BSD4.3 systems using vfork, that can affect the
- GDB process as well as the inferior (the signal handling tables
- 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. */
- signal (SIGQUIT, do_nothing);
-#ifdef SIGHUP
- if (signal (SIGHUP, do_nothing) != SIG_IGN)
- signal (SIGHUP, disconnect);
-#endif
- signal (SIGFPE, float_handler);
+ after_char_processing_hook = NULL;
+ rl_pre_input_hook = NULL;
+}
-#if defined(SIGWINCH) && defined(SIGWINCH_HANDLER)
- signal (SIGWINCH, SIGWINCH_HANDLER);
-#endif
+/* This is a gdb-local readline command handler. It accepts the
+ current command line (like RET does) and, if this command was taken
+ from the history, arranges for the next command in the history to
+ appear on the command line when the prompt returns.
+ We ignore the arguments. */
+static int
+gdb_rl_operate_and_get_next (int count, int key)
+{
+ int where;
+
+ /* Use the async hook. */
+ after_char_processing_hook = gdb_rl_operate_and_get_next_completion;
+
+ /* Find the current line, and find the next line to use. */
+ where = where_history();
+
+ /* FIXME: kettenis/20020817: max_input_history is renamed into
+ history_max_entries in readline-4.2. When we do a new readline
+ import, we should probably change it here too, even though
+ readline maintains backwards compatibility for now by still
+ defining max_input_history. */
+ if ((history_is_stifled () && (history_length >= max_input_history)) ||
+ (where >= history_length - 1))
+ operate_saved_history = where;
+ else
+ operate_saved_history = where + 1;
+
+ return rl_newline (1, key);
}
\f
/* Read one line from the command input stream `instream'
simple input as the user has requested. */
char *
-command_line_input (prompt_arg, repeat, annotation_suffix)
- char *prompt_arg;
- int repeat;
- char *annotation_suffix;
+command_line_input (char *prompt_arg, int repeat, char *annotation_suffix)
{
static char *linebuffer = 0;
static unsigned linelength = 0;
- register char *p;
+ char *p;
char *p1;
char *rl;
char *local_prompt = prompt_arg;
immediate_quit++;
#ifdef STOP_SIGNAL
if (job_control)
- {
- if (event_loop_p)
- signal (STOP_SIGNAL, handle_stop_sig);
- else
- signal (STOP_SIGNAL, stop_sig);
- }
+ signal (STOP_SIGNAL, handle_stop_sig);
#endif
while (1)
if (annotation_level > 1 && instream == stdin)
{
- printf_unfiltered ("\n\032\032pre-");
- printf_unfiltered (annotation_suffix);
- printf_unfiltered ("\n");
+ puts_unfiltered ("\n\032\032pre-");
+ puts_unfiltered (annotation_suffix);
+ puts_unfiltered ("\n");
}
/* Don't use fancy stuff if not talking to stdin. */
- if (readline_hook && instream == NULL)
+ if (deprecated_readline_hook && instream == NULL)
{
- rl = (*readline_hook) (local_prompt);
+ rl = (*deprecated_readline_hook) (local_prompt);
}
else if (command_editing_p && instream == stdin && ISATTY (instream))
{
- rl = readline (local_prompt);
+ rl = gdb_readline_wrapper (local_prompt);
}
else
{
if (annotation_level > 1 && instream == stdin)
{
- printf_unfiltered ("\n\032\032post-");
- printf_unfiltered (annotation_suffix);
- printf_unfiltered ("\n");
+ puts_unfiltered ("\n\032\032post-");
+ puts_unfiltered (annotation_suffix);
+ puts_unfiltered ("\n");
}
if (!rl || rl == (char *) EOF)
while (*p1)
*p++ = *p1++;
- free (rl); /* Allocated in readline. */
+ xfree (rl); /* Allocated in readline. */
if (p == linebuffer || *(p - 1) != '\\')
break;
#define SERVER_COMMAND_LENGTH 7
server_command =
(p - linebuffer > SERVER_COMMAND_LENGTH)
- && STREQN (linebuffer, "server ", SERVER_COMMAND_LENGTH);
+ && strncmp (linebuffer, "server ", SERVER_COMMAND_LENGTH) == 0;
if (server_command)
{
/* Note that we don't set `line'. Between this and the check in
/* If there was an error, call this function again. */
if (expanded < 0)
{
- free (history_value);
+ xfree (history_value);
return command_line_input (prompt_arg, repeat, annotation_suffix);
}
if (strlen (history_value) > linelength)
}
strcpy (linebuffer, history_value);
p = linebuffer + strlen (linebuffer);
- free (history_value);
+ xfree (history_value);
}
}
and remove the '#'. The kill ring is probably better, but some
people are in the habit of commenting things out. */
if (*p1 == '#')
- *p1 = '\0'; /* Found a comment. */
-
- /* Save into global buffer if appropriate. */
- if (repeat)
- {
- if (linelength > linesize)
- {
- line = xrealloc (line, linelength);
- linesize = linelength;
- }
- strcpy (line, linebuffer);
- return line;
- }
-
- return linebuffer;
-}
-\f
-
-/* Expand the body_list of COMMAND so that it can hold NEW_LENGTH
- code bodies. This is typically used when we encounter an "else"
- clause for an "if" command. */
-
-static void
-realloc_body_list (command, new_length)
- struct command_line *command;
- int new_length;
-{
- int n;
- struct command_line **body_list;
-
- n = command->body_count;
-
- /* Nothing to do? */
- if (new_length <= n)
- return;
-
- body_list = (struct command_line **)
- xmalloc (sizeof (struct command_line *) * new_length);
-
- memcpy (body_list, command->body_list, sizeof (struct command_line *) * n);
-
- free (command->body_list);
- command->body_list = body_list;
- command->body_count = new_length;
-}
-
-/* Read one line from the input stream. If the command is an "else" or
- "end", return such an indication to the caller. */
-
-static enum misc_command_type
-read_next_line (command)
- struct command_line **command;
-{
- char *p, *p1, *prompt_ptr, control_prompt[256];
- int i = 0;
-
- if (control_level >= 254)
- error ("Control nesting too deep!\n");
-
- /* Set a prompt based on the nesting of the control commands. */
- if (instream == stdin || (instream == 0 && readline_hook != NULL))
- {
- for (i = 0; i < control_level; i++)
- control_prompt[i] = ' ';
- control_prompt[i] = '>';
- control_prompt[i + 1] = '\0';
- prompt_ptr = (char *) &control_prompt[0];
- }
- else
- prompt_ptr = NULL;
-
- p = command_line_input (prompt_ptr, instream == stdin, "commands");
-
- /* Not sure what to do here. */
- if (p == NULL)
- return end_command;
-
- /* Strip leading and trailing whitespace. */
- while (*p == ' ' || *p == '\t')
- p++;
-
- p1 = p + strlen (p);
- while (p1 != p && (p1[-1] == ' ' || p1[-1] == '\t'))
- p1--;
-
- /* Blanks and comments don't really do anything, but we need to
- distinguish them from else, end and other commands which can be
- executed. */
- if (p1 == p || p[0] == '#')
- return nop_command;
-
- /* Is this the end of a simple, while, or if control structure? */
- if (p1 - p == 3 && !strncmp (p, "end", 3))
- return end_command;
-
- /* Is the else clause of an if control structure? */
- if (p1 - p == 4 && !strncmp (p, "else", 4))
- return else_command;
-
- /* Check for while, if, break, continue, etc and build a new command
- line structure for them. */
- if (p1 - p > 5 && !strncmp (p, "while", 5))
- *command = build_command_line (while_control, p + 6);
- else if (p1 - p > 2 && !strncmp (p, "if", 2))
- *command = build_command_line (if_control, p + 3);
- else if (p1 - p == 10 && !strncmp (p, "loop_break", 10))
- {
- *command = (struct command_line *)
- xmalloc (sizeof (struct command_line));
- (*command)->next = NULL;
- (*command)->line = NULL;
- (*command)->control_type = break_control;
- (*command)->body_count = 0;
- (*command)->body_list = NULL;
- }
- else if (p1 - p == 13 && !strncmp (p, "loop_continue", 13))
- {
- *command = (struct command_line *)
- xmalloc (sizeof (struct command_line));
- (*command)->next = NULL;
- (*command)->line = NULL;
- (*command)->control_type = continue_control;
- (*command)->body_count = 0;
- (*command)->body_list = NULL;
- }
- else
- {
- /* A normal command. */
- *command = (struct command_line *)
- xmalloc (sizeof (struct command_line));
- (*command)->next = NULL;
- (*command)->line = savestring (p, p1 - p);
- (*command)->control_type = simple_control;
- (*command)->body_count = 0;
- (*command)->body_list = NULL;
- }
-
- /* Nothing special. */
- return ok_command;
-}
-
-/* Recursively read in the control structures and create a command_line
- structure from them.
-
- The parent_control parameter is the control structure in which the
- following commands are nested. */
-
-static enum command_control_type
-recurse_read_control_structure (current_cmd)
- struct command_line *current_cmd;
-{
- int current_body, i;
- enum misc_command_type val;
- enum command_control_type ret;
- struct command_line **body_ptr, *child_tail, *next;
-
- child_tail = NULL;
- current_body = 1;
-
- /* Sanity checks. */
- if (current_cmd->control_type == simple_control)
- {
- error ("Recursed on a simple control type\n");
- return invalid_control;
- }
-
- if (current_body > current_cmd->body_count)
- {
- error ("Allocated body is smaller than this command type needs\n");
- return invalid_control;
- }
-
- /* Read lines from the input stream and build control structures. */
- while (1)
- {
- dont_repeat ();
-
- next = NULL;
- val = read_next_line (&next);
-
- /* Just skip blanks and comments. */
- if (val == nop_command)
- continue;
-
- if (val == end_command)
- {
- if (current_cmd->control_type == while_control
- || current_cmd->control_type == if_control)
- {
- /* Success reading an entire control structure. */
- ret = simple_control;
- break;
- }
- else
- {
- ret = invalid_control;
- break;
- }
- }
-
- /* Not the end of a control structure. */
- if (val == else_command)
- {
- if (current_cmd->control_type == if_control
- && current_body == 1)
- {
- realloc_body_list (current_cmd, 2);
- current_body = 2;
- child_tail = NULL;
- continue;
- }
- else
- {
- ret = invalid_control;
- break;
- }
- }
-
- if (child_tail)
- {
- child_tail->next = next;
- }
- else
- {
- body_ptr = current_cmd->body_list;
- for (i = 1; i < current_body; i++)
- body_ptr++;
-
- *body_ptr = next;
-
- }
-
- child_tail = next;
-
- /* If the latest line is another control structure, then recurse
- on it. */
- if (next->control_type == while_control
- || next->control_type == if_control)
- {
- control_level++;
- ret = recurse_read_control_structure (next);
- control_level--;
-
- if (ret != simple_control)
- break;
- }
- }
-
- dont_repeat ();
-
- return ret;
-}
-
-/* Read lines from the input stream and accumulate them in a chain of
- struct command_line's, which is then returned. For input from a
- terminal, the special command "end" is used to mark the end of the
- input, and is not included in the returned chain of commands. */
-
-#define END_MESSAGE "End with a line saying just \"end\"."
-
-struct command_line *
-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_arg, END_MESSAGE);
- }
- else if (from_tty && input_from_terminal_p ())
- {
- printf_unfiltered ("%s\n%s\n", prompt_arg, END_MESSAGE);
- gdb_flush (gdb_stdout);
- }
-
- head = tail = NULL;
- old_chain = NULL;
-
- while (1)
- {
- val = read_next_line (&next);
-
- /* Ignore blank lines or comments. */
- if (val == nop_command)
- continue;
-
- if (val == end_command)
- {
- ret = simple_control;
- break;
- }
-
- if (val != ok_command)
- {
- ret = invalid_control;
- break;
- }
-
- if (next->control_type == while_control
- || next->control_type == if_control)
- {
- control_level++;
- ret = recurse_read_control_structure (next);
- control_level--;
-
- if (ret == invalid_control)
- break;
- }
-
- if (tail)
- {
- tail->next = next;
- }
- else
- {
- head = next;
- old_chain = make_cleanup ((make_cleanup_func) free_command_lines,
- &head);
- }
- tail = next;
- }
-
- dont_repeat ();
-
- if (head)
- {
- if (ret != invalid_control)
- {
- discard_cleanups (old_chain);
- }
- else
- do_cleanups (old_chain);
- }
-
- if (readline_end_hook)
- {
- (*readline_end_hook) ();
- }
- return (head);
-}
-
-/* Free a chain of struct command_line's. */
-
-void
-free_command_lines (lptr)
- struct command_line **lptr;
-{
- register struct command_line *l = *lptr;
- register struct command_line *next;
- struct command_line **blist;
- int i;
-
- while (l)
- {
- if (l->body_count > 0)
- {
- blist = l->body_list;
- for (i = 0; i < l->body_count; i++, blist++)
- free_command_lines (blist);
- }
- next = l->next;
- free (l->line);
- free ((PTR) l);
- l = next;
- }
-}
-\f
-/* Add an element to the list of info subcommands. */
-
-struct cmd_list_element *
-add_info (name, fun, doc)
- char *name;
- void (*fun) PARAMS ((char *, int));
- char *doc;
-{
- return add_cmd (name, no_class, fun, doc, &infolist);
-}
-
-/* Add an alias to the list of info subcommands. */
-
-struct cmd_list_element *
-add_info_alias (name, oldname, abbrev_flag)
- char *name;
- char *oldname;
- int abbrev_flag;
-{
- return add_alias_cmd (name, oldname, 0, abbrev_flag, &infolist);
-}
-
-/* The "info" command is defined as a prefix, with allow_unknown = 0.
- Therefore, its own definition is called only for "info" with no args. */
-
-/* ARGSUSED */
-static void
-info_command (arg, from_tty)
- char *arg;
- int from_tty;
-{
- printf_unfiltered ("\"info\" must be followed by the name of an info command.\n");
- help_list (infolist, "info ", -1, gdb_stdout);
-}
-
-/* The "complete" command is used by Emacs to implement completion. */
-
-/* ARGSUSED */
-static void
-complete_command (arg, from_tty)
- char *arg;
- int from_tty;
-{
- int i;
- int argpoint;
- char *completion;
-
- dont_repeat ();
-
- if (arg == NULL)
- arg = "";
- argpoint = strlen (arg);
-
- for (completion = line_completion_function (arg, i = 0, arg, argpoint);
- completion;
- completion = line_completion_function (arg, ++i, arg, argpoint))
- {
- printf_unfiltered ("%s\n", completion);
- free (completion);
- }
-}
-
-/* The "show" command with no arguments shows all the settings. */
-
-/* ARGSUSED */
-static void
-show_command (arg, from_tty)
- char *arg;
- int from_tty;
-{
- cmd_show_list (showlist, from_tty, "");
-}
-\f
-/* Add an element to the list of commands. */
-
-struct cmd_list_element *
-add_com (name, class, fun, doc)
- char *name;
- enum command_class class;
- void (*fun) PARAMS ((char *, int));
- char *doc;
-{
- return add_cmd (name, class, fun, doc, &cmdlist);
-}
-
-/* Add an alias or abbreviation command to the list of commands. */
-
-struct cmd_list_element *
-add_com_alias (name, oldname, class, abbrev_flag)
- char *name;
- char *oldname;
- enum command_class class;
- int abbrev_flag;
-{
- return add_alias_cmd (name, oldname, class, abbrev_flag, &cmdlist);
-}
-
-void
-error_no_arg (why)
- char *why;
-{
- error ("Argument required (%s).", why);
-}
-
-/* ARGSUSED */
-static void
-help_command (command, from_tty)
- char *command;
- int from_tty; /* Ignored */
-{
- help_cmd (command, gdb_stdout);
-}
-\f
-static void
-validate_comname (comname)
- char *comname;
-{
- register char *p;
-
- if (comname == 0)
- error_no_arg ("name of command to define");
-
- p = comname;
- while (*p)
- {
- if (!isalnum (*p) && *p != '-' && *p != '_')
- error ("Junk in argument list: \"%s\"", p);
- p++;
- }
-}
-
-/* This is just a placeholder in the command data structures. */
-static void
-user_defined_command (ignore, from_tty)
- char *ignore;
- int from_tty;
-{
-}
-
-static void
-define_command (comname, from_tty)
- char *comname;
- int from_tty;
-{
- register struct command_line *cmds;
- register struct cmd_list_element *c, *newc, *hookc = 0;
- char *tem = comname;
- char tmpbuf[128];
-#define HOOK_STRING "hook-"
-#define HOOK_LEN 5
-
- validate_comname (comname);
-
- /* Look it up, and verify that we got an exact match. */
- c = lookup_cmd (&tem, cmdlist, "", -1, 1);
- if (c && !STREQ (comname, c->name))
- c = 0;
-
- if (c)
- {
- if (c->class == class_user || c->class == class_alias)
- tem = "Redefine command \"%s\"? ";
- else
- tem = "Really redefine built-in command \"%s\"? ";
- if (!query (tem, c->name))
- error ("Command \"%s\" not redefined.", c->name);
- }
-
- /* If this new command is a hook, then mark the command which it
- is hooking. Note that we allow hooking `help' commands, so that
- we can hook the `stop' pseudo-command. */
-
- if (!strncmp (comname, HOOK_STRING, HOOK_LEN))
- {
- /* Look up cmd it hooks, and verify that we got an exact match. */
- tem = comname + HOOK_LEN;
- hookc = lookup_cmd (&tem, cmdlist, "", -1, 0);
- if (hookc && !STREQ (comname + HOOK_LEN, hookc->name))
- hookc = 0;
- if (!hookc)
- {
- warning ("Your new `%s' command does not hook any existing command.",
- comname);
- if (!query ("Proceed? "))
- error ("Not confirmed.");
- }
- }
-
- comname = savestring (comname, strlen (comname));
-
- /* If the rest of the commands will be case insensitive, this one
- should behave in the same manner. */
- for (tem = comname; *tem; tem++)
- if (isupper (*tem))
- *tem = tolower (*tem);
-
- sprintf (tmpbuf, "Type commands for definition of \"%s\".", comname);
- cmds = read_command_lines (tmpbuf, from_tty);
-
- if (c && c->class == class_user)
- free_command_lines (&c->user_commands);
-
- newc = add_cmd (comname, class_user, user_defined_command,
- (c && c->class == class_user)
- ? c->doc : savestring ("User-defined.", 13), &cmdlist);
- newc->user_commands = cmds;
-
- /* If this new command is a hook, then mark both commands as being
- tied. */
- if (hookc)
- {
- hookc->hook = newc; /* Target gets hooked. */
- newc->hookee = hookc; /* We are marked as hooking target cmd. */
- }
-}
-
-static void
-document_command (comname, from_tty)
- char *comname;
- int from_tty;
-{
- struct command_line *doclines;
- register struct cmd_list_element *c;
- char *tem = comname;
- char tmpbuf[128];
-
- validate_comname (comname);
-
- c = lookup_cmd (&tem, cmdlist, "", 0, 1);
-
- if (c->class != class_user)
- error ("Command \"%s\" is built-in.", comname);
-
- sprintf (tmpbuf, "Type documentation for \"%s\".", comname);
- doclines = read_command_lines (tmpbuf, from_tty);
-
- if (c->doc)
- free (c->doc);
-
- {
- register struct command_line *cl1;
- register int len = 0;
-
- for (cl1 = doclines; cl1; cl1 = cl1->next)
- len += strlen (cl1->line) + 1;
-
- c->doc = (char *) xmalloc (len + 1);
- *c->doc = 0;
-
- for (cl1 = doclines; cl1; cl1 = cl1->next)
- {
- strcat (c->doc, cl1->line);
- if (cl1->next)
- strcat (c->doc, "\n");
- }
- }
+ *p1 = '\0'; /* Found a comment. */
+
+ /* Save into global buffer if appropriate. */
+ if (repeat)
+ {
+ if (linelength > linesize)
+ {
+ line = xrealloc (line, linelength);
+ linesize = linelength;
+ }
+ strcpy (line, linebuffer);
+ return line;
+ }
- free_command_lines (&doclines);
+ return linebuffer;
}
\f
/* Print the GDB banner. */
void
-print_gdb_version (stream)
- struct ui_file *stream;
+print_gdb_version (struct ui_file *stream)
{
/* From GNU coding standards, first line is meant to be easy for a
program to parse, and is just canonical program name and version
number, which starts after last space. */
-#ifdef UI_OUT
- /* Print it console style until a format is defined */
- fprintf_filtered (stream, "GNU gdb %s (UI_OUT)\n", version);
-#else
fprintf_filtered (stream, "GNU gdb %s\n", version);
-#endif
/* Second line is a copyright notice. */
- fprintf_filtered (stream, "Copyright 2000 Free Software Foundation, Inc.\n");
+ fprintf_filtered (stream, "Copyright 2004 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
/* After the required info we print the configuration information. */
fprintf_filtered (stream, "This GDB was configured as \"");
- if (!STREQ (host_name, target_name))
+ if (strcmp (host_name, target_name) != 0)
{
fprintf_filtered (stream, "--host=%s --target=%s", host_name, target_name);
}
}
fprintf_filtered (stream, "\".");
}
-
-/* ARGSUSED */
-static void
-show_version (args, from_tty)
- char *args;
- int from_tty;
-{
- immediate_quit++;
- print_gdb_version (gdb_stdout);
- printf_filtered ("\n");
- immediate_quit--;
-}
\f
/* get_prompt: access method for the GDB prompt string. */
-#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;
-{
- char *local_prompt;
-
- if (event_loop_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, "%ld", (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 ()
+get_prompt (void)
{
- 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 (event_loop_p)
- return PROMPT (0);
- else
- return gdb_prompt_string;
- }
+ return PROMPT (0);
}
void
-set_prompt (s)
- char *s;
+set_prompt (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);
+ xfree (prompt);
*/
- if (event_loop_p)
- PROMPT (0) = savestring (s, strlen (s));
- else
- gdb_prompt_string = savestring (s, strlen (s));
+ PROMPT (0) = savestring (s, strlen (s));
}
\f
non-zero if we should quit, zero if we shouldn't. */
int
-quit_confirm ()
+quit_confirm (void)
{
- if (inferior_pid != 0 && target_has_execution)
+ if (! ptid_equal (inferior_ptid, null_ptid) && 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)
+ if (deprecated_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))
+ if (!query ("%s", s))
return 0;
}
return 1;
}
-/* Quit without asking for confirmation. */
+/* Helper routine for quit_force that requires error handling. */
-void
-quit_force (args, from_tty)
- char *args;
- int from_tty;
+struct qt_args
{
- int exit_code = 0;
-
- /* An optional expression may be used to cause gdb to terminate with the
- value of that expression. */
- if (args)
- {
- value_ptr val = parse_and_eval (args);
+ char *args;
+ int from_tty;
+};
- exit_code = (int) value_as_long (val);
- }
+static int
+quit_target (void *arg)
+{
+ struct qt_args *qt = (struct qt_args *)arg;
- if (inferior_pid != 0 && target_has_execution)
+ if (! ptid_equal (inferior_ptid, null_ptid) && target_has_execution)
{
if (attach_flag)
- target_detach (args, from_tty);
+ target_detach (qt->args, qt->from_tty);
else
- target_kill ();
+ target_kill ();
}
/* UDI wants this, to kill the TIP. */
- target_close (1);
+ target_close (¤t_target, 1);
/* Save the history information if it is appropriate to do so. */
if (write_history_p && 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);
+ return 0;
}
-/* Handle the quit command. */
+/* Quit without asking for confirmation. */
void
-quit_command (args, from_tty)
- char *args;
- int from_tty;
+quit_force (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. */
+ int exit_code = 0;
+ struct qt_args qt;
-int
-input_from_terminal_p ()
-{
- return gdb_has_a_terminal () && (instream == stdin) & caution;
-}
-\f
-/* ARGSUSED */
-static void
-pwd_command (args, from_tty)
- char *args;
- int from_tty;
-{
+ /* An optional expression may be used to cause gdb to terminate with the
+ value of that expression. */
if (args)
- error ("The \"pwd\" command does not take an argument: %s", args);
- getcwd (gdb_dirbuf, sizeof (gdb_dirbuf));
-
- if (!STREQ (gdb_dirbuf, current_directory))
- printf_unfiltered ("Working directory %s\n (canonically %s).\n",
- current_directory, gdb_dirbuf);
- else
- printf_unfiltered ("Working directory %s.\n", current_directory);
-}
-
-void
-cd_command (dir, from_tty)
- char *dir;
- int from_tty;
-{
- int len;
- /* Found something other than leading repetitions of "/..". */
- int found_real_path;
- char *p;
-
- /* If the new directory is absolute, repeat is a no-op; if relative,
- repeat might be useful but is more likely to be a mistake. */
- dont_repeat ();
-
- if (dir == 0)
- error_no_arg ("new working directory");
-
- dir = tilde_expand (dir);
- make_cleanup (free, dir);
-
- if (chdir (dir) < 0)
- perror_with_name (dir);
-
-#if defined(_WIN32) || defined(__MSDOS__)
- /* There's too much mess with DOSish names like "d:", "d:.",
- "d:./foo" etc. Instead of having lots of special #ifdef'ed code,
- simply get the canonicalized name of the current directory. */
- dir = getcwd (gdb_dirbuf, sizeof (gdb_dirbuf));
-#endif
-
- len = strlen (dir);
- if (SLASH_P (dir[len-1]))
- {
- /* Remove the trailing slash unless this is a root directory
- (including a drive letter on non-Unix systems). */
- if (!(len == 1) /* "/" */
-#if defined(_WIN32) || defined(__MSDOS__)
- && !(!SLASH_P (*dir) && ROOTED_P (dir) && len <= 3) /* "d:/" */
-#endif
- )
- len--;
- }
-
- dir = savestring (dir, len);
- if (ROOTED_P (dir))
- current_directory = dir;
- else
{
- if (SLASH_P (current_directory[strlen (current_directory) - 1]))
- current_directory = concat (current_directory, dir, NULL);
- else
- current_directory = concat (current_directory, SLASH_STRING, dir, NULL);
- free (dir);
- }
+ struct value *val = parse_and_eval (args);
- /* Now simplify any occurrences of `.' and `..' in the pathname. */
-
- found_real_path = 0;
- for (p = current_directory; *p;)
- {
- if (SLASH_P (p[0]) && p[1] == '.' && (p[2] == 0 || SLASH_P (p[2])))
- strcpy (p, p + 2);
- else if (SLASH_P (p[0]) && p[1] == '.' && p[2] == '.'
- && (p[3] == 0 || SLASH_P (p[3])))
- {
- if (found_real_path)
- {
- /* Search backwards for the directory just before the "/.."
- and obliterate it and the "/..". */
- char *q = p;
- while (q != current_directory && !SLASH_P (q[-1]))
- --q;
-
- if (q == current_directory)
- /* current_directory is
- a relative pathname ("can't happen"--leave it alone). */
- ++p;
- else
- {
- strcpy (q - 1, p + 3);
- p = q - 1;
- }
- }
- else
- /* We are dealing with leading repetitions of "/..", for example
- "/../..", which is the Mach super-root. */
- p += 3;
- }
- else
- {
- found_real_path = 1;
- ++p;
- }
+ exit_code = (int) value_as_long (val);
}
- forget_cached_source_info ();
+ qt.args = args;
+ qt.from_tty = from_tty;
- if (from_tty)
- pwd_command ((char *) 0, 1);
-}
-\f
-struct source_cleanup_lines_args
-{
- int old_line;
- char *old_file;
- char *old_pre_error;
- char *old_error_pre_print;
-};
+ /* We want to handle any quit errors and exit regardless. */
+ catch_errors (quit_target, &qt,
+ "Quitting: ", RETURN_MASK_ALL);
-static void
-source_cleanup_lines (args)
- PTR args;
-{
- struct source_cleanup_lines_args *p =
- (struct source_cleanup_lines_args *) args;
- source_line_number = p->old_line;
- source_file_name = p->old_file;
- source_pre_error = p->old_pre_error;
- error_pre_print = p->old_error_pre_print;
+ exit (exit_code);
}
-/* ARGSUSED */
-void
-source_command (args, from_tty)
- char *args;
- int from_tty;
-{
- FILE *stream;
- struct cleanup *old_cleanups;
- char *file = args;
- struct source_cleanup_lines_args old_lines;
- int needed_length;
-
- if (file == NULL)
- {
- error ("source command requires pathname of file to source.");
- }
-
- file = tilde_expand (file);
- old_cleanups = make_cleanup (free, file);
-
- stream = fopen (file, FOPEN_RT);
- if (!stream)
- {
- if (from_tty)
- perror_with_name (file);
- else
- return;
- }
-
- make_cleanup ((make_cleanup_func) fclose, stream);
-
- old_lines.old_line = source_line_number;
- old_lines.old_file = source_file_name;
- old_lines.old_pre_error = source_pre_error;
- old_lines.old_error_pre_print = error_pre_print;
- make_cleanup (source_cleanup_lines, &old_lines);
- source_line_number = 0;
- source_file_name = file;
- source_pre_error = error_pre_print == NULL ? "" : error_pre_print;
- source_pre_error = savestring (source_pre_error, strlen (source_pre_error));
- make_cleanup (free, source_pre_error);
- /* This will get set every time we read a line. So it won't stay "" for
- long. */
- error_pre_print = "";
-
- needed_length = strlen (source_file_name) + strlen (source_pre_error) + 80;
- if (source_error_allocated < needed_length)
- {
- source_error_allocated *= 2;
- if (source_error_allocated < needed_length)
- source_error_allocated = needed_length;
- if (source_error == NULL)
- source_error = xmalloc (source_error_allocated);
- else
- source_error = xrealloc (source_error, source_error_allocated);
- }
-
- read_command_file (stream);
-
- do_cleanups (old_cleanups);
-}
+/* Returns whether GDB is running on a terminal and whether the user
+ desires that questions be asked of them on that terminal. */
-/* ARGSUSED */
-static void
-echo_command (text, from_tty)
- char *text;
- int from_tty;
+int
+input_from_terminal_p (void)
{
- char *p = text;
- register int c;
-
- if (text)
- while ((c = *p++) != '\0')
- {
- if (c == '\\')
- {
- /* \ at end of argument is used after spaces
- so they won't be lost. */
- if (*p == 0)
- return;
-
- c = parse_escape (&p);
- if (c >= 0)
- printf_filtered ("%c", c);
- }
- else
- printf_filtered ("%c", c);
- }
-
- /* Force this output to appear now. */
- wrap_here ("");
- gdb_flush (gdb_stdout);
+ return gdb_has_a_terminal () && (instream == stdin) & caution;
}
-
-/* ARGSUSED */
+\f
static void
-dont_repeat_command (ignored, from_tty)
- char *ignored;
- int from_tty;
+dont_repeat_command (char *ignored, int from_tty)
{
*line = 0; /* Can't call dont_repeat here because we're not
necessarily reading from stdin. */
/* Number of commands to print in each call to show_commands. */
#define Hist_print 10
-static void
-show_commands (args, from_tty)
- char *args;
- int from_tty;
+void
+show_commands (char *args, int from_tty)
{
/* Index for history commands. Relative to history_base. */
int offset;
than the number of the last command). Relative to history_base. */
int hist_len;
- extern HIST_ENTRY *history_get PARAMS ((int));
-
/* Print out some of the commands from the command history. */
/* First determine the length of the history list. */
hist_len = history_size;
;
else
/* "info editing <exp>" should print around command number <exp>. */
- num = (parse_and_eval_address (args) - history_base) - Hist_print / 2;
+ num = (parse_and_eval_long (args) - history_base) - Hist_print / 2;
}
/* "show commands" means print the last Hist_print commands. */
else
}
/* Called by do_setshow_command. */
-/* ARGSUSED */
static void
-set_history_size_command (args, from_tty, c)
- char *args;
- int from_tty;
- struct cmd_list_element *c;
+set_history_size_command (char *args, int from_tty, struct cmd_list_element *c)
{
if (history_size == INT_MAX)
unstifle_history ();
}
}
-/* ARGSUSED */
-static void
-set_history (args, from_tty)
- char *args;
- int from_tty;
+void
+set_history (char *args, int from_tty)
{
printf_unfiltered ("\"set history\" must be followed by the name of a history subcommand.\n");
help_list (sethistlist, "set history ", -1, gdb_stdout);
}
-/* ARGSUSED */
-static void
-show_history (args, from_tty)
- char *args;
- int from_tty;
+void
+show_history (char *args, int from_tty)
{
cmd_show_list (showhistlist, from_tty, "");
}
int info_verbose = 0; /* Default verbose msgs off */
/* Called by do_setshow_command. An elaborate joke. */
-/* ARGSUSED */
-static void
-set_verbose (args, from_tty, c)
- char *args;
- int from_tty;
- struct cmd_list_element *c;
+void
+set_verbose (char *args, int from_tty, struct cmd_list_element *c)
{
char *cmdname = "verbose";
struct cmd_list_element *showcmd;
}
}
-static void
-float_handler (signo)
- int signo;
-{
- /* This message is based on ANSI C, section 4.7. Note that integer
- divide by zero causes this, so "float" is a misnomer. */
- signal (SIGFPE, float_handler);
- error ("Erroneous arithmetic operation.");
-}
-
-static void
-set_debug (arg, from_tty)
- char *arg;
- int from_tty;
-{
- printf_unfiltered (
- "\"set debug\" must be followed by the name of a print subcommand.\n");
- help_list (setdebuglist, "set debug ", -1, gdb_stdout);
-}
-
-static void
-show_debug (args, from_tty)
- char *args;
- int from_tty;
-{
- cmd_show_list (showdebuglist, from_tty, "");
-}
-
-static void
-init_cmd_lists ()
-{
- cmdlist = NULL;
- infolist = NULL;
- enablelist = NULL;
- disablelist = NULL;
- togglelist = NULL;
- stoplist = NULL;
- deletelist = NULL;
- enablebreaklist = NULL;
- setlist = NULL;
- unsetlist = NULL;
- showlist = NULL;
- sethistlist = NULL;
- showhistlist = NULL;
- unsethistlist = NULL;
- maintenancelist = NULL;
- maintenanceinfolist = NULL;
- maintenanceprintlist = NULL;
- setprintlist = NULL;
- showprintlist = NULL;
- setchecklist = NULL;
- showchecklist = NULL;
-}
-
/* Init the history buffer. Note that we are called after the init file(s)
* have been read so that the user can change the history file via his
* .gdbinit file (for instance). The GDBHISTFILE environment variable
*/
void
-init_history ()
+init_history (void)
{
char *tmpenv;
directories the file written will be the same as the one
that was read. */
#ifdef __MSDOS__
- /* No leading dots in file names are allowed on MSDOS. */
- history_filename = concat (current_directory, "/_gdb_history", NULL);
+ /* No leading dots in file names are allowed on MSDOS. */
+ history_filename = concat (current_directory, "/_gdb_history", NULL);
#else
history_filename = concat (current_directory, "/.gdb_history", NULL);
#endif
}
static void
-init_main ()
+init_main (void)
{
struct cmd_list_element *c;
- /* If we are running the asynchronous version,
- we initialize the prompts differently. */
- if (!event_loop_p)
- {
- gdb_prompt_string = savestring (DEFAULT_PROMPT, strlen (DEFAULT_PROMPT));
- }
- else
- {
- /* initialize the prompt stack to a simple "(gdb) " prompt or to
- whatever the DEFAULT_PROMPT is. */
- the_prompts.top = 0;
- PREFIX (0) = "";
- PROMPT (0) = savestring (DEFAULT_PROMPT, strlen (DEFAULT_PROMPT));
- 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. */
+ /* initialize the prompt stack to a simple "(gdb) " prompt or to
+ whatever the DEFAULT_PROMPT is. */
+ the_prompts.top = 0;
+ PREFIX (0) = "";
+ PROMPT (0) = savestring (DEFAULT_PROMPT, strlen (DEFAULT_PROMPT));
+ 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)));
+
+ /* If gdb was started with --annotate=2, this is equivalent to the
+ user entering the command 'set annotate 2' at the gdb prompt, so
+ we need to do extra processing. */
+ if (annotation_level > 1)
+ set_async_annotation_level (NULL, 0, NULL);
/* Set the important stuff up for command editing. */
command_editing_p = 1;
write_history_p = 0;
/* Setup important stuff for command line editing. */
- rl_completion_entry_function = (int (*)()) readline_line_completion_function;
- rl_completer_word_break_characters = gdb_completer_word_break_characters;
- rl_completer_quote_characters = gdb_completer_quote_characters;
+ rl_completion_entry_function = readline_line_completion_function;
+ rl_completer_word_break_characters = default_word_break_characters ();
+ rl_completer_quote_characters = get_gdb_completer_quote_characters ();
rl_readline_name = "gdb";
+ rl_terminal_name = getenv ("TERM");
- /* Define the classes of commands.
- They will appear in the help list in the reverse of this order. */
-
- add_cmd ("internals", class_maintenance, NO_FUNCTION,
- "Maintenance commands.\n\
-Some gdb commands are provided just for use by gdb maintainers.\n\
-These commands are subject to frequent change, and may not be as\n\
-well documented as user commands.",
- &cmdlist);
- add_cmd ("obscure", class_obscure, NO_FUNCTION, "Obscure features.", &cmdlist);
- add_cmd ("aliases", class_alias, NO_FUNCTION, "Aliases of other commands.", &cmdlist);
- add_cmd ("user-defined", class_user, NO_FUNCTION, "User-defined commands.\n\
-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);
- 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_cmd ("stack", class_stack, NO_FUNCTION, "Examining the stack.\n\
-The stack is made up of stack frames. Gdb assigns numbers to stack frames\n\
-counting from zero for the innermost (currently executing) frame.\n\n\
-At any time gdb identifies one frame as the \"selected\" frame.\n\
-Variable lookups are done with respect to the selected frame.\n\
-When the program being debugged stops, gdb selects the innermost frame.\n\
-The commands below can be used to select other frames by number or address.",
- &cmdlist);
- add_cmd ("running", class_run, NO_FUNCTION, "Running the program.", &cmdlist);
-
- add_com ("pwd", class_files, pwd_command,
- "Print working directory. This is used for your program as well.");
- c = add_cmd ("cd", class_files, cd_command,
- "Set working directory to DIR for debugger and program being debugged.\n\
-The change does not take effect for the program being debugged\n\
-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 (!event_loop_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-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,
- "Print a constant string. Give string as argument.\n\
-C escape sequences may be used in the argument.\n\
-No newline is added at the end of the argument;\n\
-use \"\\n\" if you want a newline to be printed.\n\
-Since leading and trailing whitespace are ignored in command arguments,\n\
-if you want to print some you must use \"\\\" before leading whitespace\n\
-to be printed or after trailing whitespace.");
- add_com ("document", class_support, document_command,
- "Document a user-defined command.\n\
-Give command name as argument. Give documentation on following lines.\n\
-End with a line of just \"end\".");
- add_com ("define", class_support, define_command,
- "Define a new command name. Command name is argument.\n\
-Definition appears on following lines, one command per line.\n\
-End with a line of just \"end\".\n\
-Use the \"document\" command to give documentation for the new command.\n\
-Commands defined in this way may have up to ten arguments.");
-
-#ifdef __STDC__
- c = add_cmd ("source", class_support, source_command,
- "Read commands from a file named FILE.\n\
-Note that the file \"" GDBINIT_FILENAME "\" is read automatically in this way\n\
-when gdb is started.", &cmdlist);
-#else
- /* Punt file name, we can't help it easily. */
- c = add_cmd ("source", class_support, source_command,
- "Read commands from a file named FILE.\n\
-Note that the file \".gdbinit\" is read automatically in this way\n\
-when gdb is started.", &cmdlist);
-#endif
- c->completer = filename_completer;
+ /* The name for this defun comes from Bash, where it originated.
+ 15 is Control-o, the same binding this function has in Bash. */
+ rl_add_defun ("operate-and-get-next", gdb_rl_operate_and_get_next, 15);
- add_com ("quit", class_support, quit_command, "Exit gdb.");
- add_com ("help", class_support, help_command, "Print list of commands.");
- add_com_alias ("q", "quit", class_support, 1);
- add_com_alias ("h", "help", class_support, 1);
+ c = add_set_cmd ("prompt", class_support, var_string,
+ (char *) &new_async_prompt, "Set gdb's prompt",
+ &setlist);
+ deprecated_add_show_from_set (c, &showlist);
+ set_cmd_sfunc (c, set_async_prompt);
add_com ("dont-repeat", class_support, dont_repeat_command, "Don't repeat this command.\n\
Primarily used inside of user-defined commands that should not be repeated when\n\
hitting return.");
- c = add_set_cmd ("verbose", class_support, var_boolean, (char *) &info_verbose,
- "Set ",
- &setlist),
- add_show_from_set (c, &showlist);
- c->function.sfunc = set_verbose;
- set_verbose (NULL, 0, c);
-
- /* 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 (!event_loop_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);
- }
- 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\
+ 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.",
- &sethistlist, "set history ", 0, &setlist);
- add_prefix_cmd ("history", class_support, show_history,
- "Generic command for showing command history parameters.",
- &showhistlist, "show history ", 0, &showlist);
-
- add_show_from_set
- (add_set_cmd ("expansion", no_class, var_boolean, (char *) &history_expansion_p,
- "Set history expansion on command input.\n\
-Without an argument, history expansion is enabled.", &sethistlist),
- &showhistlist);
+ deprecated_add_show_from_set (c, &showlist);
+ set_cmd_sfunc (c, set_async_editing_command);
- add_show_from_set
+ deprecated_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 the saving, and \"off\" to disable it.\n\
&showhistlist);
c = add_set_cmd ("size", no_class, var_integer, (char *) &history_size,
- "Set the size of the command history, \n\
+ "Set the size of the command history,\n\
ie. the number of previous commands to keep a record of.", &sethistlist);
- add_show_from_set (c, &showhistlist);
- c->function.sfunc = set_history_size_command;
+ deprecated_add_show_from_set (c, &showhistlist);
+ set_cmd_sfunc (c, set_history_size_command);
- add_show_from_set
- (add_set_cmd ("filename", no_class, var_filename, (char *) &history_filename,
- "Set the filename in which to record the command history\n\
- (the list of previous commands of which a record is kept).", &sethistlist),
- &showhistlist);
+ c = add_set_cmd ("filename", no_class, var_filename,
+ (char *) &history_filename,
+ "Set the filename in which to record the command history\n\
+(the list of previous commands of which a record is kept).", &sethistlist);
+ set_cmd_completer (c, filename_completer);
+ deprecated_add_show_from_set (c, &showhistlist);
- add_show_from_set
+ deprecated_add_show_from_set
(add_set_cmd ("confirm", class_support, var_boolean,
(char *) &caution,
"Set whether to confirm potentially dangerous operations.",
&setlist),
&showlist);
- add_prefix_cmd ("info", class_info, info_command,
- "Generic command for showing things about the program being debugged.",
- &infolist, "info ", 0, &cmdlist);
- add_com_alias ("i", "info", class_info, 1);
-
- add_com ("complete", class_obscure, complete_command,
- "List the completions for the rest of the line as a command.");
-
- add_prefix_cmd ("show", class_info, show_command,
- "Generic command for showing things about the debugger.",
- &showlist, "show ", 0, &cmdlist);
- /* Another way to get at the same thing. */
- add_info ("set", show_command, "Show all GDB settings.");
-
- add_cmd ("commands", no_class, show_commands,
- "Show the history of commands you typed.\n\
-You can supply a command number to start with, or a `+' to start after\n\
-the previous command number shown.",
- &showlist);
-
- add_cmd ("version", no_class, show_version,
- "Show what version of GDB this is.", &showlist);
-
- add_com ("while", class_support, while_command,
- "Execute nested commands WHILE the conditional expression is non zero.\n\
-The conditional expression must follow the word `while' and must in turn be\n\
-followed by a new line. The nested commands must be entered one per line,\n\
-and should be terminated by the word `end'.");
-
- add_com ("if", class_support, if_command,
- "Execute nested commands once IF the conditional expression is non zero.\n\
-The conditional expression must follow the word `if' and must in turn be\n\
-followed by a new line. The nested commands must be entered one per line,\n\
-and should be terminated by the word 'else' or `end'. If an else clause\n\
-is used, the same rules apply to its nested commands as to the first ones.");
-
- /* If target is open when baud changes, it doesn't take effect until the
- next open (I think, not sure). */
- add_show_from_set (add_set_cmd ("remotebaud", no_class,
- var_zinteger, (char *) &baud_rate,
- "Set baud rate for remote serial I/O.\n\
-This value is used to set the speed of the serial port when debugging\n\
-using remote targets.", &setlist),
- &showlist);
-
- c = add_set_cmd("remotedebug", no_class, var_zinteger, (char *) &remote_debug, "Set debugging of remote protocol.\n\
-When enabled, each packet sent or received with the remote target\n\
-is displayed.",&setlist);
- deprecate_cmd(c,"set debug remote");
- deprecate_cmd(add_show_from_set(c,&showlist),"show debug remote");
-
- add_show_from_set (
- add_set_cmd ("remote", no_class, var_zinteger, (char *) &remote_debug,
- "Set debugging of remote protocol.\n\
-When enabled, each packet sent or received with the remote target\n\
-is displayed.", &setdebuglist),
- &showdebuglist);
-
- add_show_from_set (
- 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 the target.", &setlist),
- &showlist);
-
- /* 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 (!event_loop_p)
- {
- c = add_set_cmd ("annotate", class_obscure, var_zinteger,
- (char *) &annotation_level, "Set annotation_level.\n\
+ 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);
- add_show_from_set (c, &showlist);
- c->function.sfunc = set_async_annotation_level;
- }
- if (event_loop_p)
- {
- add_show_from_set
- (add_set_cmd ("exec-done-display", class_support, var_boolean, (char *) &exec_done_display_p,
- "Set notification of completion for asynchronous execution commands.\n\
+ &setlist);
+ deprecated_add_show_from_set (c, &showlist);
+ set_cmd_sfunc (c, set_async_annotation_level);
+
+ deprecated_add_show_from_set
+ (add_set_cmd ("exec-done-display", class_support, var_boolean, (char *) &exec_done_display_p,
+ "Set notification of completion for asynchronous execution commands.\n\
Use \"on\" to enable the notification, and \"off\" to disable it.", &setlist),
- &showlist);
- }
- add_prefix_cmd("debug",no_class,set_debug, "Generic command for setting gdb debugging flags", &setdebuglist, "set debug ", 0, &setlist);
+ &showlist);
+}
+
+void
+gdb_init (char *argv0)
+{
+ if (pre_init_ui_hook)
+ pre_init_ui_hook ();
+
+ /* Run the init function of each source file */
+
+ getcwd (gdb_dirbuf, sizeof (gdb_dirbuf));
+ current_directory = gdb_dirbuf;
+
+#ifdef __MSDOS__
+ /* Make sure we return to the original directory upon exit, come
+ what may, since the OS doesn't do that for us. */
+ make_final_cleanup (do_chdir_cleanup, xstrdup (current_directory));
+#endif
+
+ init_cmd_lists (); /* This needs to be done first */
+ initialize_targets (); /* Setup target_terminal macros for utils.c */
+ initialize_utils (); /* Make errors and warnings possible */
+ initialize_all_files ();
+ initialize_current_architecture ();
+ init_cli_cmds();
+ init_main (); /* But that omits this file! Do it now */
+
+ async_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
+ or implicitly set by reading an executable during startup. */
+ set_language (language_c);
+ expected_language = current_language; /* don't warn about the change. */
- add_prefix_cmd("debug",no_class,show_debug,"Generic command for showing gdb debugging flags", &showdebuglist, "show debug ", 0, &showlist);
+ /* Allow another UI to initialize. If the UI fails to initialize,
+ and it wants GDB to revert to the CLI, it should clear
+ deprecated_init_ui_hook. */
+ if (deprecated_init_ui_hook)
+ deprecated_init_ui_hook (argv0);
}
projects / deliverable / binutils-gdb.git / blobdiff