1 /* MI Command Set - breakpoint and watchpoint commands.
2 Copyright (C) 2000, 2001, 2002, 2007, 2008, 2009, 2010
3 Free Software Foundation, Inc.
4 Contributed by Cygnus Solutions (a Red Hat company).
6 This file is part of GDB.
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 3 of the License, or
11 (at your option) any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program. If not, see <http://www.gnu.org/licenses/>. */
22 #include "arch-utils.h"
26 #include "breakpoint.h"
27 #include "gdb_string.h"
28 #include "mi-getopt.h"
30 #include "exceptions.h"
38 /* True if MI breakpoint observers have been registered. */
40 static int mi_breakpoint_observers_installed;
42 /* Control whether breakpoint_notify may act. */
44 static int mi_can_breakpoint_notify;
46 /* Output a single breakpoint, when allowed. */
49 breakpoint_notify (int b)
51 if (mi_can_breakpoint_notify)
52 gdb_breakpoint_query (uiout, b, NULL);
62 /* Implements the -break-insert command.
63 See the MI manual for the list of possible options. */
66 mi_cmd_break_insert (char *command, char **argv, int argc)
73 char *condition = NULL;
77 struct cleanup *back_to;
78 enum bptype type_wanted;
82 HARDWARE_OPT, TEMP_OPT, CONDITION_OPT,
83 IGNORE_COUNT_OPT, THREAD_OPT, PENDING_OPT, DISABLE_OPT,
86 static struct mi_opt opts[] =
88 {"h", HARDWARE_OPT, 0},
90 {"c", CONDITION_OPT, 1},
91 {"i", IGNORE_COUNT_OPT, 1},
93 {"f", PENDING_OPT, 0},
94 {"d", DISABLE_OPT, 0},
95 {"a", TRACEPOINT_OPT, 0},
99 /* Parse arguments. It could be -r or -h or -t, <location> or ``--''
100 to denote the end of the option list. */
106 int opt = mi_getopt ("mi_cmd_break_insert", argc, argv, opts, &optind, &optarg);
109 switch ((enum opt) opt)
120 case IGNORE_COUNT_OPT:
121 ignore_count = atol (optarg);
124 thread = atol (optarg);
139 error (_("mi_cmd_break_insert: Missing <location>"));
140 if (optind < argc - 1)
141 error (_("mi_cmd_break_insert: Garbage following <location>"));
142 address = argv[optind];
144 /* Now we have what we need, let's insert the breakpoint! */
145 if (! mi_breakpoint_observers_installed)
147 observer_attach_breakpoint_created (breakpoint_notify);
148 observer_attach_breakpoint_modified (breakpoint_notify);
149 observer_attach_breakpoint_deleted (breakpoint_notify);
150 mi_breakpoint_observers_installed = 1;
153 back_to = make_cleanup_restore_integer (&mi_can_breakpoint_notify);
154 mi_can_breakpoint_notify = 1;
156 /* Note that to request a fast tracepoint, the client uses the
157 "hardware" flag, although there's nothing of hardware related to
158 fast tracepoints -- one can implement slow tracepoints with
159 hardware breakpoints, but fast tracepoints are always software.
160 "fast" is a misnomer, actually, "jump" would be more appropriate.
161 A simulator or an emulator could conceivably implement fast
162 regular non-jump based tracepoints. */
163 type_wanted = (tracepoint
164 ? (hardware ? bp_fast_tracepoint : bp_tracepoint)
165 : (hardware ? bp_hardware_breakpoint : bp_breakpoint));
167 create_breakpoint (get_current_arch (), address, condition, thread,
168 0 /* condition and thread are valid. */,
171 pending ? AUTO_BOOLEAN_TRUE : AUTO_BOOLEAN_FALSE,
173 do_cleanups (back_to);
185 mi_cmd_break_passcount (char *command, char **argv, int argc)
189 struct breakpoint *t;
192 error (_("Usage: tracepoint-number passcount"));
196 t = get_tracepoint (n);
201 observer_notify_tracepoint_modified (n);
205 error (_("Cound not find tracepoint %d"), n);
209 /* Insert a watchpoint. The type of watchpoint is specified by the
211 -break-watch <expr> --> insert a regular wp.
212 -break-watch -r <expr> --> insert a read watchpoint.
213 -break-watch -a <expr> --> insert an access wp. */
216 mi_cmd_break_watch (char *command, char **argv, int argc)
219 enum wp_type type = REG_WP;
224 static struct mi_opt opts[] =
227 {"a", ACCESS_OPT, 0},
231 /* Parse arguments. */
237 int opt = mi_getopt ("mi_cmd_break_watch", argc, argv,
238 opts, &optind, &optarg);
242 switch ((enum opt) opt)
253 error (_("mi_cmd_break_watch: Missing <expression>"));
254 if (optind < argc - 1)
255 error (_("mi_cmd_break_watch: Garbage following <expression>"));
258 /* Now we have what we need, let's insert the watchpoint! */
262 watch_command_wrapper (expr, FROM_TTY);
265 rwatch_command_wrapper (expr, FROM_TTY);
268 awatch_command_wrapper (expr, FROM_TTY);
271 error (_("mi_cmd_break_watch: Unknown watchpoint type."));
275 /* The mi_read_next_line consults these variable to return successive
276 command lines. While it would be clearer to use a closure pointer,
277 it is not expected that any future code will use read_command_lines_1,
278 therefore no point of overengineering. */
280 static char **mi_command_line_array;
281 static int mi_command_line_array_cnt;
282 static int mi_command_line_array_ptr;
285 mi_read_next_line (void)
287 if (mi_command_line_array_ptr == mi_command_line_array_cnt)
290 return mi_command_line_array[mi_command_line_array_ptr++];
294 mi_cmd_break_commands (char *command, char **argv, int argc)
296 struct command_line *break_command;
299 struct breakpoint *b;
302 error ("USAGE: %s <BKPT> [<COMMAND> [<COMMAND>...]]", command);
304 bnum = strtol (argv[0], &endptr, 0);
305 if (endptr == argv[0])
306 error ("breakpoint number argument \"%s\" is not a number.",
308 else if (*endptr != '\0')
309 error ("junk at the end of breakpoint number argument \"%s\".",
312 b = get_breakpoint (bnum);
314 error ("breakpoint %d not found.", bnum);
316 mi_command_line_array = argv;
317 mi_command_line_array_ptr = 1;
318 mi_command_line_array_cnt = argc;
320 if (is_tracepoint (b))
321 break_command = read_command_lines_1 (mi_read_next_line, 1,
322 check_tracepoint_command, b);
324 break_command = read_command_lines_1 (mi_read_next_line, 1, 0, 0);
326 breakpoint_set_commands (b, break_command);