1 /* MI Command Set - breakpoint and watchpoint commands.
2 Copyright (C) 2000, 2001, 2002, 2007, 2008, 2009, 2010, 2011
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 ("-break-insert", argc
, argv
,
107 opts
, &optind
, &optarg
);
110 switch ((enum opt
) opt
)
121 case IGNORE_COUNT_OPT
:
122 ignore_count
= atol (optarg
);
125 thread
= atol (optarg
);
140 error (_("-break-insert: Missing <location>"));
141 if (optind
< argc
- 1)
142 error (_("-break-insert: Garbage following <location>"));
143 address
= argv
[optind
];
145 /* Now we have what we need, let's insert the breakpoint! */
146 if (! mi_breakpoint_observers_installed
)
148 observer_attach_breakpoint_created (breakpoint_notify
);
149 observer_attach_breakpoint_modified (breakpoint_notify
);
150 observer_attach_breakpoint_deleted (breakpoint_notify
);
151 mi_breakpoint_observers_installed
= 1;
154 back_to
= make_cleanup_restore_integer (&mi_can_breakpoint_notify
);
155 mi_can_breakpoint_notify
= 1;
157 /* Note that to request a fast tracepoint, the client uses the
158 "hardware" flag, although there's nothing of hardware related to
159 fast tracepoints -- one can implement slow tracepoints with
160 hardware breakpoints, but fast tracepoints are always software.
161 "fast" is a misnomer, actually, "jump" would be more appropriate.
162 A simulator or an emulator could conceivably implement fast
163 regular non-jump based tracepoints. */
164 type_wanted
= (tracepoint
165 ? (hardware
? bp_fast_tracepoint
: bp_tracepoint
)
166 : (hardware
? bp_hardware_breakpoint
: bp_breakpoint
));
168 create_breakpoint (get_current_arch (), address
, condition
, thread
,
169 0 /* condition and thread are valid. */,
172 pending
? AUTO_BOOLEAN_TRUE
: AUTO_BOOLEAN_FALSE
,
173 NULL
, 0, enabled
, 0);
174 do_cleanups (back_to
);
186 mi_cmd_break_passcount (char *command
, char **argv
, int argc
)
190 struct breakpoint
*t
;
193 error (_("Usage: tracepoint-number passcount"));
197 t
= get_tracepoint (n
);
202 observer_notify_tracepoint_modified (n
);
206 error (_("Cound not find tracepoint %d"), n
);
210 /* Insert a watchpoint. The type of watchpoint is specified by the
212 -break-watch <expr> --> insert a regular wp.
213 -break-watch -r <expr> --> insert a read watchpoint.
214 -break-watch -a <expr> --> insert an access wp. */
217 mi_cmd_break_watch (char *command
, char **argv
, int argc
)
220 enum wp_type type
= REG_WP
;
225 static struct mi_opt opts
[] =
228 {"a", ACCESS_OPT
, 0},
232 /* Parse arguments. */
238 int opt
= mi_getopt ("-break-watch", argc
, argv
,
239 opts
, &optind
, &optarg
);
243 switch ((enum opt
) opt
)
254 error (_("-break-watch: Missing <expression>"));
255 if (optind
< argc
- 1)
256 error (_("-break-watch: Garbage following <expression>"));
259 /* Now we have what we need, let's insert the watchpoint! */
263 watch_command_wrapper (expr
, FROM_TTY
, 0);
266 rwatch_command_wrapper (expr
, FROM_TTY
, 0);
269 awatch_command_wrapper (expr
, FROM_TTY
, 0);
272 error (_("-break-watch: Unknown watchpoint type."));
276 /* The mi_read_next_line consults these variable to return successive
277 command lines. While it would be clearer to use a closure pointer,
278 it is not expected that any future code will use read_command_lines_1,
279 therefore no point of overengineering. */
281 static char **mi_command_line_array
;
282 static int mi_command_line_array_cnt
;
283 static int mi_command_line_array_ptr
;
286 mi_read_next_line (void)
288 if (mi_command_line_array_ptr
== mi_command_line_array_cnt
)
291 return mi_command_line_array
[mi_command_line_array_ptr
++];
295 mi_cmd_break_commands (char *command
, char **argv
, int argc
)
297 struct command_line
*break_command
;
300 struct breakpoint
*b
;
303 error (_("USAGE: %s <BKPT> [<COMMAND> [<COMMAND>...]]"), command
);
305 bnum
= strtol (argv
[0], &endptr
, 0);
306 if (endptr
== argv
[0])
307 error (_("breakpoint number argument \"%s\" is not a number."),
309 else if (*endptr
!= '\0')
310 error (_("junk at the end of breakpoint number argument \"%s\"."),
313 b
= get_breakpoint (bnum
);
315 error (_("breakpoint %d not found."), bnum
);
317 mi_command_line_array
= argv
;
318 mi_command_line_array_ptr
= 1;
319 mi_command_line_array_cnt
= argc
;
321 if (is_tracepoint (b
))
322 break_command
= read_command_lines_1 (mi_read_next_line
, 1,
323 check_tracepoint_command
, b
);
325 break_command
= read_command_lines_1 (mi_read_next_line
, 1, 0, 0);
327 breakpoint_set_commands (b
, break_command
);