1 /* Data structures associated with breakpoints in GDB.
2 Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001,
4 Free Software Foundation, Inc.
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 2 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, write to the Free Software
20 Foundation, Inc., 51 Franklin Street, Fifth Floor,
21 Boston, MA 02110-1301, USA. */
23 #if !defined (BREAKPOINT_H)
24 #define BREAKPOINT_H 1
29 #include "gdb-events.h"
34 /* This is the maximum number of bytes a breakpoint instruction can take.
35 Feel free to increase it. It's just used in a few places to size
36 arrays that should be independent of the target architecture. */
38 #define BREAKPOINT_MAX 16
40 /* Type of breakpoint. */
41 /* FIXME In the future, we should fold all other breakpoint-like things into
44 * single-step (for machines where we have to simulate single stepping)
45 (probably, though perhaps it is better for it to look as much as
46 possible like a single-step to wait_for_inferior). */
50 bp_none = 0, /* Eventpoint has been deleted. */
51 bp_breakpoint, /* Normal breakpoint */
52 bp_hardware_breakpoint, /* Hardware assisted breakpoint */
53 bp_until, /* used by until command */
54 bp_finish, /* used by finish command */
55 bp_watchpoint, /* Watchpoint */
56 bp_hardware_watchpoint, /* Hardware assisted watchpoint */
57 bp_read_watchpoint, /* read watchpoint, (hardware assisted) */
58 bp_access_watchpoint, /* access watchpoint, (hardware assisted) */
59 bp_longjmp, /* secret breakpoint to find longjmp() */
60 bp_longjmp_resume, /* secret breakpoint to escape longjmp() */
62 /* Used by wait_for_inferior for stepping over subroutine calls, for
63 stepping over signal handlers, and for skipping prologues. */
66 /* Used by wait_for_inferior for stepping over signal handlers. */
69 /* Used to detect when a watchpoint expression has gone out of
70 scope. These breakpoints are usually not visible to the user.
72 This breakpoint has some interesting properties:
74 1) There's always a 1:1 mapping between watchpoints
75 on local variables and watchpoint_scope breakpoints.
77 2) It automatically deletes itself and the watchpoint it's
78 associated with when hit.
80 3) It can never be disabled. */
83 /* The breakpoint at the end of a call dummy. */
84 /* FIXME: What if the function we are calling longjmp()s out of the
85 call, or the user gets out with the "return" command? We currently
86 have no way of cleaning up the breakpoint in these (obscure) situations.
87 (Probably can solve this by noticing longjmp, "return", etc., it's
88 similar to noticing when a watchpoint on a local variable goes out
89 of scope (with hardware support for watchpoints)). */
92 /* Some dynamic linkers (HP, maybe Solaris) can arrange for special
93 code in the inferior to run when significant events occur in the
94 dynamic linker (for example a library is loaded or unloaded).
96 By placing a breakpoint in this magic code GDB will get control
97 when these significant events occur. GDB can then re-examine
98 the dynamic linker's data structures to discover any newly loaded
102 /* Some multi-threaded systems can arrange for a location in the
103 inferior to be executed when certain thread-related events occur
104 (such as thread creation or thread death).
106 By placing a breakpoint at one of these locations, GDB will get
107 control when these events occur. GDB can then update its thread
112 /* On the same principal, an overlay manager can arrange to call a
113 magic location in the inferior whenever there is an interesting
114 change in overlay status. GDB can update its overlay tables
115 and fiddle with breakpoints in overlays when this breakpoint
120 /* These breakpoints are used to implement the "catch load" command
121 on platforms whose dynamic linkers support such functionality. */
124 /* These breakpoints are used to implement the "catch unload" command
125 on platforms whose dynamic linkers support such functionality. */
128 /* These are not really breakpoints, but are catchpoints that
129 implement the "catch fork", "catch vfork" and "catch exec" commands
130 on platforms whose kernel support such functionality. (I.e.,
131 kernels which can raise an event when a fork or exec occurs, as
132 opposed to the debugger setting breakpoints on functions named
133 "fork" or "exec".) */
138 /* These are catchpoints to implement "catch catch" and "catch throw"
139 commands for C++ exception handling. */
146 /* States of enablement of breakpoint. */
150 bp_disabled, /* The eventpoint is inactive, and cannot trigger. */
151 bp_enabled, /* The eventpoint is active, and can trigger. */
152 bp_shlib_disabled, /* The eventpoint's address is in an unloaded solib.
153 The eventpoint will be automatically enabled
154 and reset when that solib is loaded. */
155 bp_call_disabled, /* The eventpoint has been disabled while a call
156 into the inferior is "in flight", because some
157 eventpoints interfere with the implementation of
158 a call on some targets. The eventpoint will be
159 automatically enabled and reset when the call
160 "lands" (either completes, or stops at another
162 bp_permanent /* There is a breakpoint instruction hard-wired into
163 the target's code. Don't try to write another
164 breakpoint instruction on top of it, or restore
165 its value. Step over it using the architecture's
170 /* Disposition of breakpoint. Ie: what to do after hitting it. */
174 disp_del, /* Delete it */
175 disp_del_at_next_stop, /* Delete at next stop, whether hit or not */
176 disp_disable, /* Disable it */
177 disp_donttouch /* Leave it alone */
180 enum target_hw_bp_type
182 hw_write = 0, /* Common HW watchpoint */
183 hw_read = 1, /* Read HW watchpoint */
184 hw_access = 2, /* Access HW watchpoint */
185 hw_execute = 3 /* Execute HW breakpoint */
188 /* GDB maintains two types of information about each breakpoint (or
189 watchpoint, or other related event). The first type corresponds
190 to struct breakpoint; this is a relatively high-level structure
191 which contains the source location(s), stopping conditions, user
192 commands to execute when the breakpoint is hit, and so forth.
194 The second type of information corresponds to struct bp_location.
195 Each breakpoint has one or (eventually) more locations associated
196 with it, which represent target-specific and machine-specific
197 mechanisms for stopping the program. For instance, a watchpoint
198 expression may require multiple hardware watchpoints in order to
199 catch all changes in the value of the expression being watched. */
203 bp_loc_software_breakpoint,
204 bp_loc_hardware_breakpoint,
205 bp_loc_hardware_watchpoint,
206 bp_loc_other /* Miscellaneous... */
211 /* Chain pointer to the next breakpoint location. */
212 struct bp_location *next;
214 /* Type of this breakpoint location. */
215 enum bp_loc_type loc_type;
217 /* Each breakpoint location must belong to exactly one higher-level
218 breakpoint. This and the DUPLICATE flag are more straightforward
219 than reference counting. */
220 struct breakpoint *owner;
222 /* Nonzero if this breakpoint is now inserted. */
225 /* Nonzero if this is not the first breakpoint in the list
226 for the given address. */
229 /* If we someday support real thread-specific breakpoints, then
230 the breakpoint location will need a thread identifier. */
232 /* Data for specific breakpoint types. These could be a union, but
233 simplicity is more important than memory usage for breakpoints. */
235 /* Note that zero is a perfectly valid code address on some platforms
236 (for example, the mn10200 (OBSOLETE) and mn10300 simulators). NULL
237 is not a special value for this field. Valid for all types except
241 /* For any breakpoint type with an address, this is the BFD section
242 associated with the address. Used primarily for overlay debugging. */
245 /* "Real" contents of byte where breakpoint has been inserted.
246 Valid only when breakpoints are in the program. Under the complete
247 control of the target insert_breakpoint and remove_breakpoint routines.
248 No other code should assume anything about the value(s) here.
249 Valid only for bp_loc_software_breakpoint. */
250 gdb_byte shadow_contents[BREAKPOINT_MAX];
252 /* Address at which breakpoint was requested, either by the user or
253 by GDB for internal breakpoints. This will usually be the same
254 as ``address'' (above) except for cases in which
255 ADJUST_BREAKPOINT_ADDRESS has computed a different address at
256 which to place the breakpoint in order to comply with a
257 processor's architectual constraints. */
258 CORE_ADDR requested_address;
261 /* This structure is a collection of function pointers that, if available,
262 will be called instead of the performing the default action for this
265 struct breakpoint_ops
267 /* The normal print routine for this breakpoint, called when we
269 enum print_stop_action (*print_it) (struct breakpoint *);
271 /* Display information about this breakpoint, for "info breakpoints". */
272 void (*print_one) (struct breakpoint *, CORE_ADDR *);
274 /* Display information about this breakpoint after setting it (roughly
275 speaking; this is called from "mention"). */
276 void (*print_mention) (struct breakpoint *);
279 /* Note that the ->silent field is not currently used by any commands
280 (though the code is in there if it was to be, and set_raw_breakpoint
281 does set it to 0). I implemented it because I thought it would be
282 useful for a hack I had to put in; I'm going to leave it in because
283 I can see how there might be times when it would indeed be useful */
285 /* This is for a breakpoint or a watchpoint. */
289 struct breakpoint *next;
290 /* Type of breakpoint. */
292 /* Zero means disabled; remember the info but don't break here. */
293 enum enable_state enable_state;
294 /* What to do with this breakpoint after we hit it. */
295 enum bpdisp disposition;
296 /* Number assigned to distinguish breakpoints. */
299 /* Location(s) associated with this high-level breakpoint. */
300 struct bp_location *loc;
302 /* Line number of this address. */
306 /* Source file name of this address. */
310 /* Non-zero means a silent breakpoint (don't print frame info
312 unsigned char silent;
313 /* Number of stops at this breakpoint that should
314 be continued automatically before really stopping. */
316 /* Chain of command lines to execute when this breakpoint is hit. */
317 struct command_line *commands;
318 /* Stack depth (address of frame). If nonzero, break only if fp
320 struct frame_id frame_id;
321 /* Conditional. Break only if this expression's value is nonzero. */
322 struct expression *cond;
324 /* String we used to set the breakpoint (malloc'd). */
326 /* Language we used to set the breakpoint. */
327 enum language language;
328 /* Input radix we used to set the breakpoint. */
330 /* String form of the breakpoint condition (malloc'd), or NULL if there
333 /* String form of exp (malloc'd), or NULL if none. */
336 /* The expression we are watching, or NULL if not a watchpoint. */
337 struct expression *exp;
338 /* The largest block within which it is valid, or NULL if it is
339 valid anywhere (e.g. consists just of global symbols). */
340 struct block *exp_valid_block;
341 /* Value of the watchpoint the last time we checked it. */
344 /* Holds the value chain for a hardware watchpoint expression. */
345 struct value *val_chain;
347 /* Holds the address of the related watchpoint_scope breakpoint
348 when using watchpoints on local variables (might the concept
349 of a related breakpoint be useful elsewhere, if not just call
350 it the watchpoint_scope breakpoint or something like that. FIXME). */
351 struct breakpoint *related_breakpoint;
353 /* Holds the frame address which identifies the frame this
354 watchpoint should be evaluated in, or `null' if the watchpoint
355 should be evaluated on the outermost frame. */
356 struct frame_id watchpoint_frame;
358 /* Thread number for thread-specific breakpoint, or -1 if don't care */
361 /* Count of the number of times this breakpoint was taken, dumped
362 with the info, but not used for anything else. Useful for
363 seeing how many times you hit a break prior to the program
364 aborting, so you can back up to just before the abort. */
367 /* Filename of a dynamically-linked library (dll), used for
368 bp_catch_load and bp_catch_unload (malloc'd), or NULL if any
369 library is significant. */
372 /* Filename of a dll whose state change (e.g., load or unload)
373 triggered this catchpoint. This field is only valid immediately
374 after this catchpoint has triggered. */
375 char *triggered_dll_pathname;
377 /* Process id of a child process whose forking triggered this
378 catchpoint. This field is only valid immediately after this
379 catchpoint has triggered. */
380 int forked_inferior_pid;
382 /* Filename of a program whose exec triggered this catchpoint.
383 This field is only valid immediately after this catchpoint has
387 /* Methods associated with this breakpoint. */
388 struct breakpoint_ops *ops;
390 /* Was breakpoint issued from a tty? Saved for the use of pending breakpoints. */
393 /* Flag value for pending breakpoint.
394 first bit : 0 non-temporary, 1 temporary.
395 second bit : 0 normal breakpoint, 1 hardware breakpoint. */
398 /* Is breakpoint pending on shlib loads? */
402 /* The following stuff is an abstract data type "bpstat" ("breakpoint
403 status"). This provides the ability to determine whether we have
404 stopped at a breakpoint, and what we should do about it. */
406 typedef struct bpstats *bpstat;
409 /* Clear a bpstat so that it says we are not at any breakpoint.
410 Also free any storage that is part of a bpstat. */
411 extern void bpstat_clear (bpstat *);
413 /* Return a copy of a bpstat. Like "bs1 = bs2" but all storage that
414 is part of the bpstat is copied as well. */
415 extern bpstat bpstat_copy (bpstat);
417 extern bpstat bpstat_stop_status (CORE_ADDR pc, ptid_t ptid,
418 int stopped_by_watchpoint);
420 /* This bpstat_what stuff tells wait_for_inferior what to do with a
421 breakpoint (a challenging task). */
423 enum bpstat_what_main_action
425 /* Perform various other tests; that is, this bpstat does not
426 say to perform any action (e.g. failed watchpoint and nothing
428 BPSTAT_WHAT_KEEP_CHECKING,
430 /* Rather than distinguish between noisy and silent stops here, it
431 might be cleaner to have bpstat_print make that decision (also
432 taking into account stop_print_frame and source_only). But the
433 implications are a bit scary (interaction with auto-displays, etc.),
434 so I won't try it. */
437 BPSTAT_WHAT_STOP_SILENT,
439 /* Stop and print. */
440 BPSTAT_WHAT_STOP_NOISY,
442 /* Remove breakpoints, single step once, then put them back in and
443 go back to what we were doing. It's possible that this should be
444 removed from the main_action and put into a separate field, to more
445 cleanly handle BPSTAT_WHAT_CLEAR_LONGJMP_RESUME_SINGLE. */
448 /* Set longjmp_resume breakpoint, remove all other breakpoints,
449 and continue. The "remove all other breakpoints" part is required
450 if we are also stepping over another breakpoint as well as doing
451 the longjmp handling. */
452 BPSTAT_WHAT_SET_LONGJMP_RESUME,
454 /* Clear longjmp_resume breakpoint, then handle as
455 BPSTAT_WHAT_KEEP_CHECKING. */
456 BPSTAT_WHAT_CLEAR_LONGJMP_RESUME,
458 /* Clear longjmp_resume breakpoint, then handle as BPSTAT_WHAT_SINGLE. */
459 BPSTAT_WHAT_CLEAR_LONGJMP_RESUME_SINGLE,
461 /* Clear step resume breakpoint, and keep checking. */
462 BPSTAT_WHAT_STEP_RESUME,
464 /* Clear through_sigtramp breakpoint, muck with trap_expected, and keep
466 BPSTAT_WHAT_THROUGH_SIGTRAMP,
468 /* Check the dynamic linker's data structures for new libraries, then
470 BPSTAT_WHAT_CHECK_SHLIBS,
472 /* Check the dynamic linker's data structures for new libraries, then
473 resume out of the dynamic linker's callback, stop and print. */
474 BPSTAT_WHAT_CHECK_SHLIBS_RESUME_FROM_HOOK,
476 /* This is just used to keep track of how many enums there are. */
482 enum bpstat_what_main_action main_action;
484 /* Did we hit a call dummy breakpoint? This only goes with a main_action
485 of BPSTAT_WHAT_STOP_SILENT or BPSTAT_WHAT_STOP_NOISY (the concept of
486 continuing from a call dummy without popping the frame is not a
491 /* The possible return values for print_bpstat, print_it_normal,
492 print_it_done, print_it_noop. */
493 enum print_stop_action
501 /* Tell what to do about this bpstat. */
502 struct bpstat_what bpstat_what (bpstat);
504 /* Find the bpstat associated with a breakpoint. NULL otherwise. */
505 bpstat bpstat_find_breakpoint (bpstat, struct breakpoint *);
507 /* Find a step_resume breakpoint associated with this bpstat.
508 (If there are multiple step_resume bp's on the list, this function
509 will arbitrarily pick one.)
511 It is an error to use this function if BPSTAT doesn't contain a
512 step_resume breakpoint.
514 See wait_for_inferior's use of this function.
516 extern struct breakpoint *bpstat_find_step_resume_breakpoint (bpstat);
518 /* Nonzero if a signal that we got in wait() was due to circumstances
519 explained by the BS. */
520 /* Currently that is true if we have hit a breakpoint, or if there is
521 a watchpoint enabled. */
522 #define bpstat_explains_signal(bs) ((bs) != NULL)
524 /* Nonzero if we should step constantly (e.g. watchpoints on machines
525 without hardware support). This isn't related to a specific bpstat,
526 just to things like whether watchpoints are set. */
527 extern int bpstat_should_step (void);
529 /* Nonzero if there are enabled hardware watchpoints. */
530 extern int bpstat_have_active_hw_watchpoints (void);
532 /* Print a message indicating what happened. Returns nonzero to
533 say that only the source line should be printed after this (zero
534 return means print the frame as well as the source line). */
535 extern enum print_stop_action bpstat_print (bpstat);
537 /* Return the breakpoint number of the first breakpoint we are stopped
538 at. *BSP upon return is a bpstat which points to the remaining
539 breakpoints stopped at (but which is not guaranteed to be good for
540 anything but further calls to bpstat_num).
541 Return 0 if passed a bpstat which does not indicate any breakpoints. */
542 extern int bpstat_num (bpstat *);
544 /* Perform actions associated with having stopped at *BSP. Actually, we just
545 use this for breakpoint commands. Perhaps other actions will go here
546 later, but this is executed at a late time (from the command loop). */
547 extern void bpstat_do_actions (bpstat *);
549 /* Modify BS so that the actions will not be performed. */
550 extern void bpstat_clear_actions (bpstat);
552 /* Given a bpstat that records zero or more triggered eventpoints, this
553 function returns another bpstat which contains only the catchpoints
554 on that first list, if any.
556 extern void bpstat_get_triggered_catchpoints (bpstat, bpstat *);
558 /* Implementation: */
560 /* Values used to tell the printing routine how to behave for this bpstat. */
563 /* This is used when we want to do a normal printing of the reason
564 for stopping. The output will depend on the type of eventpoint
565 we are dealing with. This is the default value, most commonly
568 /* This is used when nothing should be printed for this bpstat entry. */
570 /* This is used when everything which needs to be printed has
571 already been printed. But we still want to print the frame. */
577 /* Linked list because there can be two breakpoints at the same
578 place, and a bpstat reflects the fact that both have been hit. */
580 /* Breakpoint that we are at. */
581 struct breakpoint *breakpoint_at;
582 /* Commands left to be done. */
583 struct command_line *commands;
584 /* Old value associated with a watchpoint. */
585 struct value *old_val;
587 /* Nonzero if this breakpoint tells us to print the frame. */
590 /* Nonzero if this breakpoint tells us to stop. */
593 /* Tell bpstat_print and print_bp_stop_message how to print stuff
594 associated with this element of the bpstat chain. */
595 enum bp_print_how print_it;
605 /* The possible return values for breakpoint_here_p.
606 We guarantee that zero always means "no breakpoint here". */
609 no_breakpoint_here = 0,
610 ordinary_breakpoint_here,
611 permanent_breakpoint_here
615 /* Prototypes for breakpoint-related functions. */
617 extern enum breakpoint_here breakpoint_here_p (CORE_ADDR);
619 extern int breakpoint_inserted_here_p (CORE_ADDR);
621 extern int software_breakpoint_inserted_here_p (CORE_ADDR);
623 extern int breakpoint_thread_match (CORE_ADDR, ptid_t);
625 extern void until_break_command (char *, int, int);
627 extern void breakpoint_re_set (void);
629 extern void breakpoint_re_set_thread (struct breakpoint *);
631 extern int ep_is_exception_catchpoint (struct breakpoint *);
633 extern struct breakpoint *set_momentary_breakpoint
634 (struct symtab_and_line, struct frame_id, enum bptype);
636 extern void set_ignore_count (int, int, int);
638 extern void set_default_breakpoint (int, CORE_ADDR, struct symtab *, int);
640 extern void mark_breakpoints_out (void);
642 extern void breakpoint_init_inferior (enum inf_context);
644 extern struct cleanup *make_cleanup_delete_breakpoint (struct breakpoint *);
646 extern struct cleanup *make_exec_cleanup_delete_breakpoint (struct breakpoint *);
648 extern void delete_breakpoint (struct breakpoint *);
650 extern void breakpoint_auto_delete (bpstat);
652 extern void breakpoint_clear_ignore_counts (void);
654 extern void break_command (char *, int);
656 extern void hbreak_command_wrapper (char *, int);
657 extern void thbreak_command_wrapper (char *, int);
658 extern void rbreak_command_wrapper (char *, int);
659 extern void watch_command_wrapper (char *, int);
660 extern void awatch_command_wrapper (char *, int);
661 extern void rwatch_command_wrapper (char *, int);
662 extern void tbreak_command (char *, int);
664 extern int insert_breakpoints (void);
666 extern int remove_breakpoints (void);
668 /* This function can be used to physically insert eventpoints from the
669 specified traced inferior process, without modifying the breakpoint
670 package's state. This can be useful for those targets which support
671 following the processes of a fork() or vfork() system call, when both
672 of the resulting two processes are to be followed. */
673 extern int reattach_breakpoints (int);
675 /* This function can be used to update the breakpoint package's state
676 after an exec() system call has been executed.
678 This function causes the following:
680 - All eventpoints are marked "not inserted".
681 - All eventpoints with a symbolic address are reset such that
682 the symbolic address must be reevaluated before the eventpoints
684 - The solib breakpoints are explicitly removed from the breakpoint
686 - A step-resume breakpoint, if any, is explicitly removed from the
688 - All eventpoints without a symbolic address are removed from the
690 extern void update_breakpoints_after_exec (void);
692 /* This function can be used to physically remove hardware breakpoints
693 and watchpoints from the specified traced inferior process, without
694 modifying the breakpoint package's state. This can be useful for
695 those targets which support following the processes of a fork() or
696 vfork() system call, when one of the resulting two processes is to
697 be detached and allowed to run free.
699 It is an error to use this function on the process whose id is
701 extern int detach_breakpoints (int);
703 extern void enable_longjmp_breakpoint (void);
704 extern void disable_longjmp_breakpoint (void);
705 extern void enable_overlay_breakpoints (void);
706 extern void disable_overlay_breakpoints (void);
708 extern void set_longjmp_resume_breakpoint (CORE_ADDR, struct frame_id);
709 /* These functions respectively disable or reenable all currently
710 enabled watchpoints. When disabled, the watchpoints are marked
711 call_disabled. When reenabled, they are marked enabled.
713 The intended client of these functions is call_function_by_hand.
715 The inferior must be stopped, and all breakpoints removed, when
716 these functions are used.
718 The need for these functions is that on some targets (e.g., HP-UX),
719 gdb is unable to unwind through the dummy frame that is pushed as
720 part of the implementation of a call command. Watchpoints can
721 cause the inferior to stop in places where this frame is visible,
722 and that can cause execution control to become very confused.
724 Note that if a user sets breakpoints in an interactively called
725 function, the call_disabled watchpoints will have been reenabled
726 when the first such breakpoint is reached. However, on targets
727 that are unable to unwind through the call dummy frame, watches
728 of stack-based storage may then be deleted, because gdb will
729 believe that their watched storage is out of scope. (Sigh.) */
730 extern void disable_watchpoints_before_interactive_call_start (void);
732 extern void enable_watchpoints_after_interactive_call_stop (void);
735 extern void clear_breakpoint_hit_counts (void);
737 extern int get_number (char **);
739 extern int get_number_or_range (char **);
741 /* The following are for displays, which aren't really breakpoints, but
742 here is as good a place as any for them. */
744 extern void disable_current_display (void);
746 extern void do_displays (void);
748 extern void disable_display (int);
750 extern void clear_displays (void);
752 extern void disable_breakpoint (struct breakpoint *);
754 extern void enable_breakpoint (struct breakpoint *);
756 extern void make_breakpoint_permanent (struct breakpoint *);
758 extern struct breakpoint *create_solib_event_breakpoint (CORE_ADDR);
760 extern struct breakpoint *create_thread_event_breakpoint (CORE_ADDR);
762 extern void remove_solib_event_breakpoints (void);
764 extern void remove_thread_event_breakpoints (void);
766 extern void disable_breakpoints_in_shlibs (int silent);
768 extern void re_enable_breakpoints_in_shlibs (void);
770 extern void create_solib_load_event_breakpoint (char *, int, char *, char *);
772 extern void create_solib_unload_event_breakpoint (char *, int,
775 extern void create_fork_event_catchpoint (int, char *);
777 extern void create_vfork_event_catchpoint (int, char *);
779 extern void create_exec_event_catchpoint (int, char *);
781 /* This function returns TRUE if ep is a catchpoint. */
782 extern int ep_is_catchpoint (struct breakpoint *);
784 /* This function returns TRUE if ep is a catchpoint of a
785 shared library (aka dynamically-linked library) event,
786 such as a library load or unload. */
787 extern int ep_is_shlib_catchpoint (struct breakpoint *);
789 extern struct breakpoint *set_breakpoint_sal (struct symtab_and_line);
791 /* Enable breakpoints and delete when hit. Called with ARG == NULL
792 deletes all breakpoints. */
793 extern void delete_command (char *arg, int from_tty);
795 /* Pull all H/W watchpoints from the target. Return non-zero if the
797 extern int remove_hw_watchpoints (void);
800 /* Indicator of whether exception catchpoints should be nuked between
801 runs of a program. */
802 extern int deprecated_exception_catchpoints_are_fragile;
804 /* Indicator of when exception catchpoints set-up should be
805 reinitialized -- e.g. when program is re-run. */
806 extern int deprecated_exception_support_initialized;
808 #endif /* !defined (BREAKPOINT_H) */