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c906108c | 1 | /* Data structures associated with breakpoints in GDB. |
213516ef | 2 | Copyright (C) 1992-2023 Free Software Foundation, Inc. |
c906108c | 3 | |
c5aa993b | 4 | This file is part of GDB. |
c906108c | 5 | |
c5aa993b JM |
6 | This program is free software; you can redistribute it and/or modify |
7 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 8 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 9 | (at your option) any later version. |
c906108c | 10 | |
c5aa993b JM |
11 | This program is distributed in the hope that it will be useful, |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
c906108c | 15 | |
c5aa993b | 16 | You should have received a copy of the GNU General Public License |
a9762ec7 | 17 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c SS |
18 | |
19 | #if !defined (BREAKPOINT_H) | |
20 | #define BREAKPOINT_H 1 | |
21 | ||
4de283e4 TT |
22 | #include "frame.h" |
23 | #include "value.h" | |
b775012e | 24 | #include "ax.h" |
625e8578 | 25 | #include "command.h" |
268a13a5 | 26 | #include "gdbsupport/break-common.h" |
d55e5aa6 | 27 | #include "probe.h" |
4de283e4 TT |
28 | #include "location.h" |
29 | #include <vector> | |
268a13a5 | 30 | #include "gdbsupport/array-view.h" |
f6d17b2b | 31 | #include "gdbsupport/filtered-iterator.h" |
95da600f | 32 | #include "gdbsupport/function-view.h" |
9be25986 SM |
33 | #include "gdbsupport/next-iterator.h" |
34 | #include "gdbsupport/iterator-range.h" | |
b6433ede | 35 | #include "gdbsupport/refcounted-object.h" |
240edef6 | 36 | #include "gdbsupport/safe-iterator.h" |
4de283e4 | 37 | #include "cli/cli-script.h" |
403c71fd | 38 | #include "target/waitstatus.h" |
c906108c | 39 | |
fe898f56 | 40 | struct block; |
4cb0213d | 41 | struct gdbpy_breakpoint_object; |
ed3ef339 | 42 | struct gdbscm_breakpoint_object; |
bfd28288 | 43 | struct number_or_range_parser; |
619cebe8 | 44 | struct thread_info; |
313f3b21 | 45 | struct bpstat; |
28010a5d | 46 | struct bp_location; |
983af33b SDJ |
47 | struct linespec_result; |
48 | struct linespec_sals; | |
00431a78 | 49 | struct inferior; |
278cd55f | 50 | |
30056ea0 AB |
51 | /* Enum for exception-handling support in 'catch throw', 'catch rethrow', |
52 | 'catch catch' and the MI equivalent. */ | |
53 | ||
54 | enum exception_event_kind | |
55 | { | |
56 | EX_EVENT_THROW, | |
57 | EX_EVENT_RETHROW, | |
58 | EX_EVENT_CATCH | |
59 | }; | |
60 | ||
73971819 PA |
61 | /* Why are we removing the breakpoint from the target? */ |
62 | ||
63 | enum remove_bp_reason | |
64 | { | |
65 | /* A regular remove. Remove the breakpoint and forget everything | |
66 | about it. */ | |
67 | REMOVE_BREAKPOINT, | |
68 | ||
69 | /* Detach the breakpoints from a fork child. */ | |
70 | DETACH_BREAKPOINT, | |
71 | }; | |
72 | ||
0e2de366 MS |
73 | /* This is the maximum number of bytes a breakpoint instruction can |
74 | take. Feel free to increase it. It's just used in a few places to | |
75 | size arrays that should be independent of the target | |
76 | architecture. */ | |
c906108c SS |
77 | |
78 | #define BREAKPOINT_MAX 16 | |
79 | \f | |
a96d9b2e SDJ |
80 | |
81 | /* Type of breakpoint. */ | |
c5aa993b JM |
82 | |
83 | enum bptype | |
84 | { | |
0e2de366 | 85 | bp_none = 0, /* Eventpoint has been deleted */ |
c5aa993b JM |
86 | bp_breakpoint, /* Normal breakpoint */ |
87 | bp_hardware_breakpoint, /* Hardware assisted breakpoint */ | |
7c16b83e | 88 | bp_single_step, /* Software single-step */ |
c5aa993b JM |
89 | bp_until, /* used by until command */ |
90 | bp_finish, /* used by finish command */ | |
91 | bp_watchpoint, /* Watchpoint */ | |
92 | bp_hardware_watchpoint, /* Hardware assisted watchpoint */ | |
93 | bp_read_watchpoint, /* read watchpoint, (hardware assisted) */ | |
94 | bp_access_watchpoint, /* access watchpoint, (hardware assisted) */ | |
95 | bp_longjmp, /* secret breakpoint to find longjmp() */ | |
96 | bp_longjmp_resume, /* secret breakpoint to escape longjmp() */ | |
97 | ||
e2e4d78b JK |
98 | /* Breakpoint placed to the same location(s) like bp_longjmp but used to |
99 | protect against stale DUMMY_FRAME. Multiple bp_longjmp_call_dummy and | |
100 | one bp_call_dummy are chained together by related_breakpoint for each | |
101 | DUMMY_FRAME. */ | |
102 | bp_longjmp_call_dummy, | |
103 | ||
186c406b TT |
104 | /* An internal breakpoint that is installed on the unwinder's |
105 | debug hook. */ | |
106 | bp_exception, | |
107 | /* An internal breakpoint that is set at the point where an | |
108 | exception will land. */ | |
109 | bp_exception_resume, | |
110 | ||
0e2de366 | 111 | /* Used by wait_for_inferior for stepping over subroutine calls, |
2c03e5be | 112 | and for skipping prologues. */ |
c5aa993b JM |
113 | bp_step_resume, |
114 | ||
2c03e5be PA |
115 | /* Used by wait_for_inferior for stepping over signal |
116 | handlers. */ | |
117 | bp_hp_step_resume, | |
118 | ||
c5aa993b JM |
119 | /* Used to detect when a watchpoint expression has gone out of |
120 | scope. These breakpoints are usually not visible to the user. | |
121 | ||
122 | This breakpoint has some interesting properties: | |
c906108c SS |
123 | |
124 | 1) There's always a 1:1 mapping between watchpoints | |
125 | on local variables and watchpoint_scope breakpoints. | |
126 | ||
127 | 2) It automatically deletes itself and the watchpoint it's | |
128 | associated with when hit. | |
129 | ||
130 | 3) It can never be disabled. */ | |
c5aa993b JM |
131 | bp_watchpoint_scope, |
132 | ||
e2e4d78b JK |
133 | /* The breakpoint at the end of a call dummy. See bp_longjmp_call_dummy it |
134 | is chained with by related_breakpoint. */ | |
c5aa993b JM |
135 | bp_call_dummy, |
136 | ||
aa7d318d TT |
137 | /* A breakpoint set on std::terminate, that is used to catch |
138 | otherwise uncaught exceptions thrown during an inferior call. */ | |
139 | bp_std_terminate, | |
140 | ||
c5aa993b JM |
141 | /* Some dynamic linkers (HP, maybe Solaris) can arrange for special |
142 | code in the inferior to run when significant events occur in the | |
143 | dynamic linker (for example a library is loaded or unloaded). | |
144 | ||
145 | By placing a breakpoint in this magic code GDB will get control | |
146 | when these significant events occur. GDB can then re-examine | |
147 | the dynamic linker's data structures to discover any newly loaded | |
148 | dynamic libraries. */ | |
149 | bp_shlib_event, | |
150 | ||
c4093a6a JM |
151 | /* Some multi-threaded systems can arrange for a location in the |
152 | inferior to be executed when certain thread-related events occur | |
153 | (such as thread creation or thread death). | |
154 | ||
155 | By placing a breakpoint at one of these locations, GDB will get | |
156 | control when these events occur. GDB can then update its thread | |
157 | lists etc. */ | |
158 | ||
159 | bp_thread_event, | |
160 | ||
1900040c MS |
161 | /* On the same principal, an overlay manager can arrange to call a |
162 | magic location in the inferior whenever there is an interesting | |
163 | change in overlay status. GDB can update its overlay tables | |
164 | and fiddle with breakpoints in overlays when this breakpoint | |
165 | is hit. */ | |
166 | ||
167 | bp_overlay_event, | |
168 | ||
0fd8e87f UW |
169 | /* Master copies of longjmp breakpoints. These are always installed |
170 | as soon as an objfile containing longjmp is loaded, but they are | |
171 | always disabled. While necessary, temporary clones of bp_longjmp | |
172 | type will be created and enabled. */ | |
173 | ||
174 | bp_longjmp_master, | |
175 | ||
aa7d318d TT |
176 | /* Master copies of std::terminate breakpoints. */ |
177 | bp_std_terminate_master, | |
178 | ||
186c406b TT |
179 | /* Like bp_longjmp_master, but for exceptions. */ |
180 | bp_exception_master, | |
181 | ||
ce78b96d | 182 | bp_catchpoint, |
1042e4c0 SS |
183 | |
184 | bp_tracepoint, | |
7a697b8d | 185 | bp_fast_tracepoint, |
0fb4aa4b | 186 | bp_static_tracepoint, |
7b572efb TT |
187 | /* Like bp_static_tracepoint but for static markers. */ |
188 | bp_static_marker_tracepoint, | |
4efc6507 | 189 | |
e7e0cddf SS |
190 | /* A dynamic printf stops at the given location, does a formatted |
191 | print, then automatically continues. (Although this is sort of | |
192 | like a macro packaging up standard breakpoint functionality, | |
193 | GDB doesn't have a way to construct types of breakpoint from | |
194 | elements of behavior.) */ | |
195 | bp_dprintf, | |
196 | ||
4efc6507 DE |
197 | /* Event for JIT compiled code generation or deletion. */ |
198 | bp_jit_event, | |
0e30163f JK |
199 | |
200 | /* Breakpoint is placed at the STT_GNU_IFUNC resolver. When hit GDB | |
201 | inserts new bp_gnu_ifunc_resolver_return at the caller. | |
202 | bp_gnu_ifunc_resolver is still being kept here as a different thread | |
203 | may still hit it before bp_gnu_ifunc_resolver_return is hit by the | |
204 | original thread. */ | |
205 | bp_gnu_ifunc_resolver, | |
206 | ||
207 | /* On its hit GDB now know the resolved address of the target | |
208 | STT_GNU_IFUNC function. Associated bp_gnu_ifunc_resolver can be | |
209 | deleted now and the breakpoint moved to the target function entry | |
210 | point. */ | |
211 | bp_gnu_ifunc_resolver_return, | |
c5aa993b | 212 | }; |
c906108c | 213 | |
0e2de366 | 214 | /* States of enablement of breakpoint. */ |
c906108c | 215 | |
b5de0fa7 | 216 | enum enable_state |
c5aa993b | 217 | { |
0e2de366 MS |
218 | bp_disabled, /* The eventpoint is inactive, and cannot |
219 | trigger. */ | |
220 | bp_enabled, /* The eventpoint is active, and can | |
221 | trigger. */ | |
222 | bp_call_disabled, /* The eventpoint has been disabled while a | |
223 | call into the inferior is "in flight", | |
224 | because some eventpoints interfere with | |
225 | the implementation of a call on some | |
226 | targets. The eventpoint will be | |
227 | automatically enabled and reset when the | |
228 | call "lands" (either completes, or stops | |
229 | at another eventpoint). */ | |
c5aa993b | 230 | }; |
c906108c SS |
231 | |
232 | ||
0e2de366 | 233 | /* Disposition of breakpoint. Ie: what to do after hitting it. */ |
c906108c | 234 | |
c5aa993b JM |
235 | enum bpdisp |
236 | { | |
b5de0fa7 | 237 | disp_del, /* Delete it */ |
0e2de366 MS |
238 | disp_del_at_next_stop, /* Delete at next stop, |
239 | whether hit or not */ | |
b5de0fa7 EZ |
240 | disp_disable, /* Disable it */ |
241 | disp_donttouch /* Leave it alone */ | |
c5aa993b | 242 | }; |
c906108c | 243 | |
b775012e LM |
244 | /* Status of breakpoint conditions used when synchronizing |
245 | conditions with the target. */ | |
246 | ||
247 | enum condition_status | |
248 | { | |
249 | condition_unchanged = 0, | |
250 | condition_modified, | |
251 | condition_updated | |
252 | }; | |
253 | ||
8181d85f DJ |
254 | /* Information used by targets to insert and remove breakpoints. */ |
255 | ||
256 | struct bp_target_info | |
257 | { | |
6c95b8df PA |
258 | /* Address space at which the breakpoint was placed. */ |
259 | struct address_space *placed_address_space; | |
260 | ||
0d5ed153 MR |
261 | /* Address at which the breakpoint was placed. This is normally |
262 | the same as REQUESTED_ADDRESS, except when adjustment happens in | |
263 | gdbarch_breakpoint_from_pc. The most common form of adjustment | |
264 | is stripping an alternate ISA marker from the PC which is used | |
265 | to determine the type of breakpoint to insert. */ | |
8181d85f DJ |
266 | CORE_ADDR placed_address; |
267 | ||
0d5ed153 MR |
268 | /* Address at which the breakpoint was requested. */ |
269 | CORE_ADDR reqstd_address; | |
270 | ||
f1310107 TJB |
271 | /* If this is a ranged breakpoint, then this field contains the |
272 | length of the range that will be watched for execution. */ | |
273 | int length; | |
274 | ||
8181d85f DJ |
275 | /* If the breakpoint lives in memory and reading that memory would |
276 | give back the breakpoint, instead of the original contents, then | |
277 | the original contents are cached here. Only SHADOW_LEN bytes of | |
278 | this buffer are valid, and only when the breakpoint is inserted. */ | |
279 | gdb_byte shadow_contents[BREAKPOINT_MAX]; | |
280 | ||
281 | /* The length of the data cached in SHADOW_CONTENTS. */ | |
282 | int shadow_len; | |
283 | ||
579c6ad9 YQ |
284 | /* The breakpoint's kind. It is used in 'kind' parameter in Z |
285 | packets. */ | |
286 | int kind; | |
b775012e | 287 | |
3cde5c42 PA |
288 | /* Conditions the target should evaluate if it supports target-side |
289 | breakpoint conditions. These are non-owning pointers. */ | |
290 | std::vector<agent_expr *> conditions; | |
d3ce09f5 | 291 | |
3cde5c42 PA |
292 | /* Commands the target should evaluate if it supports target-side |
293 | breakpoint commands. These are non-owning pointers. */ | |
294 | std::vector<agent_expr *> tcommands; | |
d3ce09f5 SS |
295 | |
296 | /* Flag that is true if the breakpoint should be left in place even | |
297 | when GDB is not connected. */ | |
298 | int persist; | |
8181d85f DJ |
299 | }; |
300 | ||
5cab636d DJ |
301 | /* GDB maintains two types of information about each breakpoint (or |
302 | watchpoint, or other related event). The first type corresponds | |
303 | to struct breakpoint; this is a relatively high-level structure | |
304 | which contains the source location(s), stopping conditions, user | |
305 | commands to execute when the breakpoint is hit, and so forth. | |
306 | ||
307 | The second type of information corresponds to struct bp_location. | |
308 | Each breakpoint has one or (eventually) more locations associated | |
309 | with it, which represent target-specific and machine-specific | |
310 | mechanisms for stopping the program. For instance, a watchpoint | |
311 | expression may require multiple hardware watchpoints in order to | |
312 | catch all changes in the value of the expression being watched. */ | |
313 | ||
314 | enum bp_loc_type | |
315 | { | |
316 | bp_loc_software_breakpoint, | |
317 | bp_loc_hardware_breakpoint, | |
6e14e441 | 318 | bp_loc_software_watchpoint, |
5cab636d DJ |
319 | bp_loc_hardware_watchpoint, |
320 | bp_loc_other /* Miscellaneous... */ | |
321 | }; | |
322 | ||
b6433ede | 323 | class bp_location : public refcounted_object |
5cab636d | 324 | { |
5625a286 PA |
325 | public: |
326 | bp_location () = default; | |
327 | ||
cb1e4e32 PA |
328 | /* Construct a bp_location with the type inferred from OWNER's |
329 | type. */ | |
330 | explicit bp_location (breakpoint *owner); | |
331 | ||
332 | /* Construct a bp_location with type TYPE. */ | |
333 | bp_location (breakpoint *owner, bp_loc_type type); | |
5f486660 | 334 | |
23d6ee64 | 335 | virtual ~bp_location () = default; |
5625a286 | 336 | |
0d381245 VP |
337 | /* Chain pointer to the next breakpoint location for |
338 | the same parent breakpoint. */ | |
5625a286 | 339 | bp_location *next = NULL; |
7cc221ef | 340 | |
5cab636d | 341 | /* Type of this breakpoint location. */ |
5625a286 | 342 | bp_loc_type loc_type {}; |
5cab636d DJ |
343 | |
344 | /* Each breakpoint location must belong to exactly one higher-level | |
f431efe5 PA |
345 | breakpoint. This pointer is NULL iff this bp_location is no |
346 | longer attached to a breakpoint. For example, when a breakpoint | |
347 | is deleted, its locations may still be found in the | |
348 | moribund_locations list, or if we had stopped for it, in | |
349 | bpstats. */ | |
5625a286 | 350 | breakpoint *owner = NULL; |
5cab636d | 351 | |
60e1c644 PA |
352 | /* Conditional. Break only if this expression's value is nonzero. |
353 | Unlike string form of condition, which is associated with | |
354 | breakpoint, this is associated with location, since if breakpoint | |
355 | has several locations, the evaluation of expression can be | |
356 | different for different locations. Only valid for real | |
357 | breakpoints; a watchpoint's conditional expression is stored in | |
358 | the owner breakpoint object. */ | |
4d01a485 | 359 | expression_up cond; |
0d381245 | 360 | |
b775012e LM |
361 | /* Conditional expression in agent expression |
362 | bytecode form. This is used for stub-side breakpoint | |
363 | condition evaluation. */ | |
833177a4 | 364 | agent_expr_up cond_bytecode; |
b775012e LM |
365 | |
366 | /* Signals that the condition has changed since the last time | |
367 | we updated the global location list. This means the condition | |
368 | needs to be sent to the target again. This is used together | |
369 | with target-side breakpoint conditions. | |
370 | ||
371 | condition_unchanged: It means there has been no condition changes. | |
372 | ||
373 | condition_modified: It means this location had its condition modified. | |
374 | ||
375 | condition_updated: It means we already marked all the locations that are | |
376 | duplicates of this location and thus we don't need to call | |
377 | force_breakpoint_reinsertion (...) for this location. */ | |
378 | ||
5625a286 | 379 | condition_status condition_changed {}; |
b775012e | 380 | |
833177a4 | 381 | agent_expr_up cmd_bytecode; |
d3ce09f5 SS |
382 | |
383 | /* Signals that breakpoint conditions and/or commands need to be | |
30baf67b | 384 | re-synced with the target. This has no use other than |
d3ce09f5 | 385 | target-side breakpoints. */ |
5625a286 | 386 | bool needs_update = false; |
b775012e | 387 | |
0d381245 VP |
388 | /* This location's address is in an unloaded solib, and so this |
389 | location should not be inserted. It will be automatically | |
390 | enabled when that solib is loaded. */ | |
5625a286 | 391 | bool shlib_disabled = false; |
0d381245 VP |
392 | |
393 | /* Is this particular location enabled. */ | |
5625a286 | 394 | bool enabled = false; |
511a6cd4 | 395 | |
b5fa468f TBA |
396 | /* Is this particular location disabled because the condition |
397 | expression is invalid at this location. For a location to be | |
398 | reported as enabled, the ENABLED field above has to be true *and* | |
399 | the DISABLED_BY_COND field has to be false. */ | |
400 | bool disabled_by_cond = false; | |
401 | ||
9252448b | 402 | /* True if this breakpoint is now inserted. */ |
5625a286 | 403 | bool inserted = false; |
5cab636d | 404 | |
9252448b | 405 | /* True if this is a permanent breakpoint. There is a breakpoint |
1a853c52 PA |
406 | instruction hard-wired into the target's code. Don't try to |
407 | write another breakpoint instruction on top of it, or restore its | |
408 | value. Step over it using the architecture's | |
409 | gdbarch_skip_permanent_breakpoint method. */ | |
5625a286 | 410 | bool permanent = false; |
1a853c52 | 411 | |
9252448b | 412 | /* True if this is not the first breakpoint in the list |
1e4d1764 YQ |
413 | for the given address. location of tracepoint can _never_ |
414 | be duplicated with other locations of tracepoints and other | |
415 | kinds of breakpoints, because two locations at the same | |
416 | address may have different actions, so both of these locations | |
417 | should be downloaded and so that `tfind N' always works. */ | |
5625a286 | 418 | bool duplicate = false; |
5cab636d DJ |
419 | |
420 | /* If we someday support real thread-specific breakpoints, then | |
421 | the breakpoint location will need a thread identifier. */ | |
422 | ||
423 | /* Data for specific breakpoint types. These could be a union, but | |
424 | simplicity is more important than memory usage for breakpoints. */ | |
425 | ||
a6d9a66e UW |
426 | /* Architecture associated with this location's address. May be |
427 | different from the breakpoint architecture. */ | |
5625a286 | 428 | struct gdbarch *gdbarch = NULL; |
a6d9a66e | 429 | |
6c95b8df PA |
430 | /* The program space associated with this breakpoint location |
431 | address. Note that an address space may be represented in more | |
432 | than one program space (e.g. each uClinux program will be given | |
433 | its own program space, but there will only be one address space | |
434 | for all of them), but we must not insert more than one location | |
435 | at the same address in the same address space. */ | |
5625a286 | 436 | program_space *pspace = NULL; |
6c95b8df | 437 | |
5cab636d DJ |
438 | /* Note that zero is a perfectly valid code address on some platforms |
439 | (for example, the mn10200 (OBSOLETE) and mn10300 simulators). NULL | |
440 | is not a special value for this field. Valid for all types except | |
441 | bp_loc_other. */ | |
5625a286 | 442 | CORE_ADDR address = 0; |
5cab636d | 443 | |
a3be7890 | 444 | /* For hardware watchpoints, the size of the memory region being |
f1310107 TJB |
445 | watched. For hardware ranged breakpoints, the size of the |
446 | breakpoint range. */ | |
5625a286 | 447 | int length = 0; |
a5606eee | 448 | |
0e2de366 | 449 | /* Type of hardware watchpoint. */ |
5625a286 | 450 | target_hw_bp_type watchpoint_type {}; |
a5606eee | 451 | |
714835d5 | 452 | /* For any breakpoint type with an address, this is the section |
0e2de366 MS |
453 | associated with the address. Used primarily for overlay |
454 | debugging. */ | |
5625a286 | 455 | obj_section *section = NULL; |
cf3a9e5b | 456 | |
5cab636d DJ |
457 | /* Address at which breakpoint was requested, either by the user or |
458 | by GDB for internal breakpoints. This will usually be the same | |
459 | as ``address'' (above) except for cases in which | |
460 | ADJUST_BREAKPOINT_ADDRESS has computed a different address at | |
461 | which to place the breakpoint in order to comply with a | |
462 | processor's architectual constraints. */ | |
5625a286 | 463 | CORE_ADDR requested_address = 0; |
8181d85f | 464 | |
6a3a010b MR |
465 | /* An additional address assigned with this location. This is currently |
466 | only used by STT_GNU_IFUNC resolver breakpoints to hold the address | |
467 | of the resolver function. */ | |
5625a286 | 468 | CORE_ADDR related_address = 0; |
6a3a010b | 469 | |
55aa24fb SDJ |
470 | /* If the location comes from a probe point, this is the probe associated |
471 | with it. */ | |
5625a286 | 472 | bound_probe probe {}; |
55aa24fb | 473 | |
23d6ee64 | 474 | gdb::unique_xmalloc_ptr<char> function_name; |
0d381245 | 475 | |
8181d85f | 476 | /* Details of the placed breakpoint, when inserted. */ |
5625a286 | 477 | bp_target_info target_info {}; |
8181d85f DJ |
478 | |
479 | /* Similarly, for the breakpoint at an overlay's LMA, if necessary. */ | |
5625a286 | 480 | bp_target_info overlay_target_info {}; |
20874c92 VP |
481 | |
482 | /* In a non-stop mode, it's possible that we delete a breakpoint, | |
483 | but as we do that, some still running thread hits that breakpoint. | |
484 | For that reason, we need to keep locations belonging to deleted | |
485 | breakpoints for a bit, so that don't report unexpected SIGTRAP. | |
486 | We can't keep such locations forever, so we use a heuristic -- | |
487 | after we process certain number of inferior events since | |
488 | breakpoint was deleted, we retire all locations of that breakpoint. | |
489 | This variable keeps a number of events still to go, when | |
490 | it becomes 0 this location is retired. */ | |
5625a286 | 491 | int events_till_retirement = 0; |
f8eba3c6 | 492 | |
2f202fde JK |
493 | /* Line number which was used to place this location. |
494 | ||
495 | Breakpoint placed into a comment keeps it's user specified line number | |
496 | despite ADDRESS resolves into a different line number. */ | |
f8eba3c6 | 497 | |
5625a286 | 498 | int line_number = 0; |
f8eba3c6 | 499 | |
2f202fde JK |
500 | /* Symtab which was used to place this location. This is used |
501 | to find the corresponding source file name. */ | |
f8eba3c6 | 502 | |
5625a286 | 503 | struct symtab *symtab = NULL; |
4a27f119 KS |
504 | |
505 | /* The symbol found by the location parser, if any. This may be used to | |
264f9890 | 506 | ascertain when a location spec was set at a different location than |
4a27f119 KS |
507 | the one originally selected by parsing, e.g., inlined symbols. */ |
508 | const struct symbol *symbol = NULL; | |
3467ec66 PA |
509 | |
510 | /* Similarly, the minimal symbol found by the location parser, if | |
511 | any. This may be used to ascertain if the location was | |
512 | originally set on a GNU ifunc symbol. */ | |
513 | const minimal_symbol *msymbol = NULL; | |
514 | ||
515 | /* The objfile the symbol or minimal symbol were found in. */ | |
516 | const struct objfile *objfile = NULL; | |
5cab636d DJ |
517 | }; |
518 | ||
b6433ede TT |
519 | /* A policy class for bp_location reference counting. */ |
520 | struct bp_location_ref_policy | |
521 | { | |
522 | static void incref (bp_location *loc) | |
523 | { | |
524 | loc->incref (); | |
525 | } | |
526 | ||
527 | static void decref (bp_location *loc) | |
528 | { | |
529 | gdb_assert (loc->refcount () > 0); | |
530 | loc->decref (); | |
531 | if (loc->refcount () == 0) | |
532 | delete loc; | |
533 | } | |
534 | }; | |
535 | ||
536 | /* A gdb::ref_ptr that has been specialized for bp_location. */ | |
537 | typedef gdb::ref_ptr<bp_location, bp_location_ref_policy> | |
538 | bp_location_ref_ptr; | |
539 | ||
64166036 PA |
540 | /* The possible return values for print_bpstat, print_it_normal, |
541 | print_it_done, print_it_noop. */ | |
542 | enum print_stop_action | |
543 | { | |
544 | /* We printed nothing or we need to do some more analysis. */ | |
545 | PRINT_UNKNOWN = -1, | |
546 | ||
547 | /* We printed something, and we *do* desire that something to be | |
548 | followed by a location. */ | |
549 | PRINT_SRC_AND_LOC, | |
550 | ||
551 | /* We printed something, and we do *not* desire that something to be | |
552 | followed by a location. */ | |
553 | PRINT_SRC_ONLY, | |
554 | ||
555 | /* We already printed all we needed to print, don't print anything | |
556 | else. */ | |
557 | PRINT_NOTHING | |
558 | }; | |
559 | ||
3086aeae DJ |
560 | /* This structure is a collection of function pointers that, if available, |
561 | will be called instead of the performing the default action for this | |
562 | bptype. */ | |
563 | ||
77b06cd7 | 564 | struct breakpoint_ops |
3086aeae | 565 | { |
264f9890 PA |
566 | /* Create SALs from location spec, storing the result in |
567 | linespec_result. | |
983af33b SDJ |
568 | |
569 | For an explanation about the arguments, see the function | |
264f9890 | 570 | `create_sals_from_location_spec_default'. |
983af33b SDJ |
571 | |
572 | This function is called inside `create_breakpoint'. */ | |
264f9890 PA |
573 | void (*create_sals_from_location_spec) (location_spec *locspec, |
574 | struct linespec_result *canonical); | |
983af33b SDJ |
575 | |
576 | /* This method will be responsible for creating a breakpoint given its SALs. | |
577 | Usually, it just calls `create_breakpoints_sal' (for ordinary | |
578 | breakpoints). However, there may be some special cases where we might | |
579 | need to do some tweaks, e.g., see | |
580 | `strace_marker_create_breakpoints_sal'. | |
581 | ||
582 | This function is called inside `create_breakpoint'. */ | |
583 | void (*create_breakpoints_sal) (struct gdbarch *, | |
584 | struct linespec_result *, | |
e1e01040 PA |
585 | gdb::unique_xmalloc_ptr<char>, |
586 | gdb::unique_xmalloc_ptr<char>, | |
983af33b | 587 | enum bptype, enum bpdisp, int, int, |
ef4848c7 | 588 | int, int, int, int, unsigned); |
3086aeae DJ |
589 | }; |
590 | ||
d983da9c DJ |
591 | enum watchpoint_triggered |
592 | { | |
593 | /* This watchpoint definitely did not trigger. */ | |
594 | watch_triggered_no = 0, | |
595 | ||
596 | /* Some hardware watchpoint triggered, and it might have been this | |
597 | one, but we do not know which it was. */ | |
598 | watch_triggered_unknown, | |
599 | ||
600 | /* This hardware watchpoint definitely did trigger. */ | |
601 | watch_triggered_yes | |
602 | }; | |
603 | ||
e09342b5 TJB |
604 | /* Some targets (e.g., embedded PowerPC) need two debug registers to set |
605 | a watchpoint over a memory region. If this flag is true, GDB will use | |
30baf67b | 606 | only one register per watchpoint, thus assuming that all accesses that |
e09342b5 TJB |
607 | modify a memory location happen at its starting address. */ |
608 | ||
491144b5 | 609 | extern bool target_exact_watchpoints; |
e09342b5 | 610 | |
40cb8ca5 SM |
611 | /* bp_location linked list range. */ |
612 | ||
9be25986 | 613 | using bp_location_range = next_range<bp_location>; |
40cb8ca5 | 614 | |
c906108c SS |
615 | /* Note that the ->silent field is not currently used by any commands |
616 | (though the code is in there if it was to be, and set_raw_breakpoint | |
617 | does set it to 0). I implemented it because I thought it would be | |
618 | useful for a hack I had to put in; I'm going to leave it in because | |
619 | I can see how there might be times when it would indeed be useful */ | |
620 | ||
9a71ed14 | 621 | /* Abstract base class representing all kinds of breakpoints. */ |
c906108c SS |
622 | |
623 | struct breakpoint | |
bfb8cf90 | 624 | { |
92bb0228 PA |
625 | breakpoint (struct gdbarch *gdbarch_, enum bptype bptype, |
626 | bool temp = true, const char *cond_string = nullptr); | |
73063f51 | 627 | |
3101e4a1 TT |
628 | DISABLE_COPY_AND_ASSIGN (breakpoint); |
629 | ||
1c2cbcf1 | 630 | virtual ~breakpoint () = 0; |
c1fc2657 | 631 | |
4c6a92b1 TT |
632 | /* Allocate a location for this breakpoint. */ |
633 | virtual struct bp_location *allocate_location (); | |
634 | ||
635 | /* Reevaluate a breakpoint. This is necessary after symbols change | |
636 | (e.g., an executable or DSO was loaded, or the inferior just | |
637 | started). */ | |
638 | virtual void re_set () | |
639 | { | |
640 | /* Nothing to re-set. */ | |
641 | } | |
642 | ||
643 | /* Insert the breakpoint or watchpoint or activate the catchpoint. | |
644 | Return 0 for success, 1 if the breakpoint, watchpoint or | |
645 | catchpoint type is not supported, -1 for failure. */ | |
646 | virtual int insert_location (struct bp_location *); | |
647 | ||
648 | /* Remove the breakpoint/catchpoint that was previously inserted | |
649 | with the "insert" method above. Return 0 for success, 1 if the | |
650 | breakpoint, watchpoint or catchpoint type is not supported, | |
651 | -1 for failure. */ | |
652 | virtual int remove_location (struct bp_location *, | |
653 | enum remove_bp_reason reason); | |
654 | ||
655 | /* Return true if it the target has stopped due to hitting | |
656 | breakpoint location BL. This function does not check if we | |
657 | should stop, only if BL explains the stop. ASPACE is the address | |
658 | space in which the event occurred, BP_ADDR is the address at | |
659 | which the inferior stopped, and WS is the target_waitstatus | |
660 | describing the event. */ | |
661 | virtual int breakpoint_hit (const struct bp_location *bl, | |
662 | const address_space *aspace, | |
663 | CORE_ADDR bp_addr, | |
664 | const target_waitstatus &ws); | |
665 | ||
666 | /* Check internal conditions of the breakpoint referred to by BS. | |
4ec2227a TT |
667 | If we should not stop for this breakpoint, set BS->stop to |
668 | false. */ | |
4c6a92b1 TT |
669 | virtual void check_status (struct bpstat *bs) |
670 | { | |
671 | /* Always stop. */ | |
672 | } | |
673 | ||
674 | /* Tell how many hardware resources (debug registers) are needed | |
675 | for this breakpoint. If this function is not provided, then | |
676 | the breakpoint or watchpoint needs one debug register. */ | |
677 | virtual int resources_needed (const struct bp_location *); | |
678 | ||
4c6a92b1 TT |
679 | /* The normal print routine for this breakpoint, called when we |
680 | hit it. */ | |
7bd86313 | 681 | virtual enum print_stop_action print_it (const bpstat *bs) const; |
4c6a92b1 TT |
682 | |
683 | /* Display information about this breakpoint, for "info | |
684 | breakpoints". Returns false if this method should use the | |
685 | default behavior. */ | |
a67bcaba | 686 | virtual bool print_one (bp_location **) const |
4c6a92b1 TT |
687 | { |
688 | return false; | |
689 | } | |
690 | ||
691 | /* Display extra information about this breakpoint, below the normal | |
692 | breakpoint description in "info breakpoints". | |
693 | ||
694 | In the example below, the "address range" line was printed | |
f7968895 | 695 | by ranged_breakpoint::print_one_detail. |
4c6a92b1 TT |
696 | |
697 | (gdb) info breakpoints | |
698 | Num Type Disp Enb Address What | |
699 | 2 hw breakpoint keep y in main at test-watch.c:70 | |
700 | address range: [0x10000458, 0x100004c7] | |
701 | ||
702 | */ | |
703 | virtual void print_one_detail (struct ui_out *) const | |
704 | { | |
705 | /* Nothing. */ | |
706 | } | |
707 | ||
708 | /* Display information about this breakpoint after setting it | |
709 | (roughly speaking; this is called from "mention"). */ | |
b713485d | 710 | virtual void print_mention () const; |
4c6a92b1 TT |
711 | |
712 | /* Print to FP the CLI command that recreates this breakpoint. */ | |
4d1ae558 | 713 | virtual void print_recreate (struct ui_file *fp) const; |
4c6a92b1 | 714 | |
4c6a92b1 TT |
715 | /* Return true if this breakpoint explains a signal. See |
716 | bpstat_explains_signal. */ | |
a6860f3a | 717 | virtual bool explains_signal (enum gdb_signal) |
4c6a92b1 | 718 | { |
a6860f3a | 719 | return true; |
4c6a92b1 TT |
720 | } |
721 | ||
722 | /* Called after evaluating the breakpoint's condition, | |
723 | and only if it evaluated true. */ | |
724 | virtual void after_condition_true (struct bpstat *bs) | |
725 | { | |
726 | /* Nothing to do. */ | |
727 | } | |
728 | ||
40cb8ca5 | 729 | /* Return a range of this breakpoint's locations. */ |
a67bcaba | 730 | bp_location_range locations () const; |
40cb8ca5 | 731 | |
16c4d54a | 732 | breakpoint *next = NULL; |
bfb8cf90 | 733 | /* Type of breakpoint. */ |
16c4d54a | 734 | bptype type = bp_none; |
bfb8cf90 | 735 | /* Zero means disabled; remember the info but don't break here. */ |
16c4d54a | 736 | enum enable_state enable_state = bp_enabled; |
bfb8cf90 | 737 | /* What to do with this breakpoint after we hit it. */ |
16c4d54a | 738 | bpdisp disposition = disp_del; |
bfb8cf90 | 739 | /* Number assigned to distinguish breakpoints. */ |
16c4d54a | 740 | int number = 0; |
bfb8cf90 PA |
741 | |
742 | /* Location(s) associated with this high-level breakpoint. */ | |
16c4d54a | 743 | bp_location *loc = NULL; |
bfb8cf90 | 744 | |
16c4d54a PA |
745 | /* True means a silent breakpoint (don't print frame info if we stop |
746 | here). */ | |
747 | bool silent = false; | |
748 | /* True means display ADDR_STRING to the user verbatim. */ | |
749 | bool display_canonical = false; | |
bfb8cf90 PA |
750 | /* Number of stops at this breakpoint that should be continued |
751 | automatically before really stopping. */ | |
16c4d54a | 752 | int ignore_count = 0; |
bfb8cf90 PA |
753 | |
754 | /* Number of stops at this breakpoint before it will be | |
755 | disabled. */ | |
16c4d54a | 756 | int enable_count = 0; |
bfb8cf90 PA |
757 | |
758 | /* Chain of command lines to execute when this breakpoint is | |
759 | hit. */ | |
d1b0a7bf | 760 | counted_command_line commands; |
bfb8cf90 PA |
761 | /* Stack depth (address of frame). If nonzero, break only if fp |
762 | equals this. */ | |
16c4d54a | 763 | struct frame_id frame_id = null_frame_id; |
bfb8cf90 PA |
764 | |
765 | /* The program space used to set the breakpoint. This is only set | |
766 | for breakpoints which are specific to a program space; for | |
767 | non-thread-specific ordinary breakpoints this is NULL. */ | |
16c4d54a | 768 | program_space *pspace = NULL; |
bfb8cf90 | 769 | |
264f9890 PA |
770 | /* The location specification we used to set the breakpoint. */ |
771 | location_spec_up locspec; | |
bfb8cf90 PA |
772 | |
773 | /* The filter that should be passed to decode_line_full when | |
c0e8dcd8 TT |
774 | re-setting this breakpoint. This may be NULL. */ |
775 | gdb::unique_xmalloc_ptr<char> filter; | |
bfb8cf90 | 776 | |
264f9890 PA |
777 | /* For a ranged breakpoint, the location specification we used to |
778 | find the end of the range. */ | |
779 | location_spec_up locspec_range_end; | |
bfb8cf90 PA |
780 | |
781 | /* Architecture we used to set the breakpoint. */ | |
73063f51 | 782 | struct gdbarch *gdbarch; |
bfb8cf90 | 783 | /* Language we used to set the breakpoint. */ |
73063f51 | 784 | enum language language; |
bfb8cf90 | 785 | /* Input radix we used to set the breakpoint. */ |
73063f51 | 786 | int input_radix; |
bfb8cf90 PA |
787 | /* String form of the breakpoint condition (malloc'd), or NULL if |
788 | there is no condition. */ | |
6f781ee3 | 789 | gdb::unique_xmalloc_ptr<char> cond_string; |
bfb8cf90 PA |
790 | |
791 | /* String form of extra parameters, or NULL if there are none. | |
fb81d016 | 792 | Malloc'd. */ |
6f781ee3 | 793 | gdb::unique_xmalloc_ptr<char> extra_string; |
bfb8cf90 PA |
794 | |
795 | /* Holds the address of the related watchpoint_scope breakpoint when | |
796 | using watchpoints on local variables (might the concept of a | |
797 | related breakpoint be useful elsewhere, if not just call it the | |
798 | watchpoint_scope breakpoint or something like that. FIXME). */ | |
73063f51 | 799 | breakpoint *related_breakpoint; |
bfb8cf90 PA |
800 | |
801 | /* Thread number for thread-specific breakpoint, or -1 if don't | |
802 | care. */ | |
16c4d54a | 803 | int thread = -1; |
bfb8cf90 PA |
804 | |
805 | /* Ada task number for task-specific breakpoint, or 0 if don't | |
806 | care. */ | |
16c4d54a | 807 | int task = 0; |
bfb8cf90 PA |
808 | |
809 | /* Count of the number of times this breakpoint was taken, dumped | |
810 | with the info, but not used for anything else. Useful for seeing | |
811 | how many times you hit a break prior to the program aborting, so | |
812 | you can back up to just before the abort. */ | |
16c4d54a | 813 | int hit_count = 0; |
bfb8cf90 PA |
814 | |
815 | /* Is breakpoint's condition not yet parsed because we found no | |
816 | location initially so had no context to parse the condition | |
817 | in. */ | |
16c4d54a | 818 | int condition_not_parsed = 0; |
bfb8cf90 PA |
819 | |
820 | /* With a Python scripting enabled GDB, store a reference to the | |
821 | Python object that has been associated with this breakpoint. | |
822 | This is always NULL for a GDB that is not script enabled. It can | |
823 | sometimes be NULL for enabled GDBs as not all breakpoint types | |
824 | are tracked by the scripting language API. */ | |
16c4d54a | 825 | gdbpy_breakpoint_object *py_bp_object = NULL; |
bfb8cf90 PA |
826 | |
827 | /* Same as py_bp_object, but for Scheme. */ | |
16c4d54a | 828 | gdbscm_breakpoint_object *scm_bp_object = NULL; |
04d0163c TT |
829 | |
830 | protected: | |
831 | ||
832 | /* Helper for breakpoint_ops->print_recreate implementations. Prints | |
833 | the "thread" or "task" condition of B, and then a newline. | |
834 | ||
835 | Necessary because most breakpoint implementations accept | |
836 | thread/task conditions at the end of the spec line, like "break foo | |
837 | thread 1", which needs outputting before any breakpoint-type | |
838 | specific extra command necessary for B's recreation. */ | |
839 | void print_recreate_thread (struct ui_file *fp) const; | |
bfb8cf90 | 840 | }; |
e09342b5 | 841 | |
9a71ed14 PA |
842 | /* Abstract base class representing code breakpoints. User "break" |
843 | breakpoints, internal and momentary breakpoints, etc. IOW, any | |
844 | kind of breakpoint whose locations are created from SALs. */ | |
74421c0b | 845 | struct code_breakpoint : public breakpoint |
098f1272 | 846 | { |
73063f51 TT |
847 | using breakpoint::breakpoint; |
848 | ||
3b003a61 PA |
849 | /* Create a breakpoint with SALS as locations. Use LOCATION as a |
850 | description of the location, and COND_STRING as condition | |
851 | expression. If LOCATION is NULL then create an "address | |
852 | location" from the address in the SAL. */ | |
74421c0b | 853 | code_breakpoint (struct gdbarch *gdbarch, bptype type, |
3b003a61 | 854 | gdb::array_view<const symtab_and_line> sals, |
264f9890 | 855 | location_spec_up &&locspec, |
3b003a61 PA |
856 | gdb::unique_xmalloc_ptr<char> filter, |
857 | gdb::unique_xmalloc_ptr<char> cond_string, | |
858 | gdb::unique_xmalloc_ptr<char> extra_string, | |
859 | enum bpdisp disposition, | |
860 | int thread, int task, int ignore_count, | |
861 | int from_tty, | |
862 | int enabled, unsigned flags, | |
863 | int display_canonical); | |
864 | ||
74421c0b | 865 | ~code_breakpoint () override = 0; |
1c2cbcf1 | 866 | |
960bc2bd PA |
867 | /* Add a location for SAL to this breakpoint. */ |
868 | bp_location *add_location (const symtab_and_line &sal); | |
869 | ||
2b5ab5b8 TT |
870 | void re_set () override; |
871 | int insert_location (struct bp_location *) override; | |
872 | int remove_location (struct bp_location *, | |
873 | enum remove_bp_reason reason) override; | |
874 | int breakpoint_hit (const struct bp_location *bl, | |
875 | const address_space *aspace, | |
876 | CORE_ADDR bp_addr, | |
877 | const target_waitstatus &ws) override; | |
b3d5660a TT |
878 | |
879 | protected: | |
880 | ||
aef4b7a5 TT |
881 | /* Given the location spec, this method decodes it and returns the |
882 | SAL locations related to it. For ordinary breakpoints, it calls | |
883 | `decode_line_full'. If SEARCH_PSPACE is not NULL, symbol search | |
884 | is restricted to just that program space. | |
885 | ||
886 | This function is called inside `location_spec_to_sals'. */ | |
887 | virtual std::vector<symtab_and_line> decode_location_spec | |
888 | (location_spec *locspec, | |
889 | struct program_space *search_pspace); | |
890 | ||
b3d5660a TT |
891 | /* Helper method that does the basic work of re_set. */ |
892 | void re_set_default (); | |
2c9a6d72 TT |
893 | |
894 | /* Find the SaL locations corresponding to the given LOCATION. | |
895 | On return, FOUND will be 1 if any SaL was found, zero otherwise. */ | |
896 | ||
897 | std::vector<symtab_and_line> location_spec_to_sals | |
898 | (location_spec *locspec, | |
899 | struct program_space *search_pspace, | |
900 | int *found); | |
098f1272 TT |
901 | }; |
902 | ||
9a71ed14 PA |
903 | /* An instance of this type is used to represent a watchpoint, |
904 | a.k.a. a data breakpoint. */ | |
9c06b0b4 | 905 | |
c1fc2657 | 906 | struct watchpoint : public breakpoint |
3a5c3e22 | 907 | { |
73063f51 TT |
908 | using breakpoint::breakpoint; |
909 | ||
3a292923 TT |
910 | void re_set () override; |
911 | int insert_location (struct bp_location *) override; | |
912 | int remove_location (struct bp_location *, | |
913 | enum remove_bp_reason reason) override; | |
914 | int breakpoint_hit (const struct bp_location *bl, | |
915 | const address_space *aspace, | |
916 | CORE_ADDR bp_addr, | |
917 | const target_waitstatus &ws) override; | |
918 | void check_status (struct bpstat *bs) override; | |
919 | int resources_needed (const struct bp_location *) override; | |
5a61e176 TT |
920 | |
921 | /* Tell whether we can downgrade from a hardware watchpoint to a software | |
922 | one. If not, the user will not be able to enable the watchpoint when | |
923 | there are not enough hardware resources available. */ | |
924 | virtual bool works_in_software_mode () const; | |
925 | ||
7bd86313 | 926 | enum print_stop_action print_it (const bpstat *bs) const override; |
b713485d | 927 | void print_mention () const override; |
4d1ae558 | 928 | void print_recreate (struct ui_file *fp) const override; |
a6860f3a | 929 | bool explains_signal (enum gdb_signal) override; |
3a292923 | 930 | |
3a5c3e22 PA |
931 | /* String form of exp to use for displaying to the user (malloc'd), |
932 | or NULL if none. */ | |
a4c50be3 | 933 | gdb::unique_xmalloc_ptr<char> exp_string; |
3a5c3e22 | 934 | /* String form to use for reparsing of EXP (malloc'd) or NULL. */ |
a4c50be3 | 935 | gdb::unique_xmalloc_ptr<char> exp_string_reparse; |
3a5c3e22 PA |
936 | |
937 | /* The expression we are watching, or NULL if not a watchpoint. */ | |
4d01a485 | 938 | expression_up exp; |
3a5c3e22 PA |
939 | /* The largest block within which it is valid, or NULL if it is |
940 | valid anywhere (e.g. consists just of global symbols). */ | |
270140bd | 941 | const struct block *exp_valid_block; |
3a5c3e22 | 942 | /* The conditional expression if any. */ |
4d01a485 | 943 | expression_up cond_exp; |
3a5c3e22 PA |
944 | /* The largest block within which it is valid, or NULL if it is |
945 | valid anywhere (e.g. consists just of global symbols). */ | |
270140bd | 946 | const struct block *cond_exp_valid_block; |
3a5c3e22 PA |
947 | /* Value of the watchpoint the last time we checked it, or NULL when |
948 | we do not know the value yet or the value was not readable. VAL | |
949 | is never lazy. */ | |
850645cf | 950 | value_ref_ptr val; |
4c1d86d9 SM |
951 | |
952 | /* True if VAL is valid. If VAL_VALID is set but VAL is NULL, | |
3a5c3e22 | 953 | then an error occurred reading the value. */ |
4c1d86d9 | 954 | bool val_valid; |
3a5c3e22 | 955 | |
bb9d5f81 PP |
956 | /* When watching the location of a bitfield, contains the offset and size of |
957 | the bitfield. Otherwise contains 0. */ | |
958 | int val_bitpos; | |
959 | int val_bitsize; | |
960 | ||
3a5c3e22 PA |
961 | /* Holds the frame address which identifies the frame this |
962 | watchpoint should be evaluated in, or `null' if the watchpoint | |
963 | should be evaluated on the outermost frame. */ | |
964 | struct frame_id watchpoint_frame; | |
965 | ||
966 | /* Holds the thread which identifies the frame this watchpoint | |
967 | should be considered in scope for, or `null_ptid' if the | |
968 | watchpoint should be evaluated in all threads. */ | |
969 | ptid_t watchpoint_thread; | |
970 | ||
971 | /* For hardware watchpoints, the triggered status according to the | |
972 | hardware. */ | |
973 | enum watchpoint_triggered watchpoint_triggered; | |
974 | ||
975 | /* Whether this watchpoint is exact (see | |
976 | target_exact_watchpoints). */ | |
977 | int exact; | |
978 | ||
979 | /* The mask address for a masked hardware watchpoint. */ | |
980 | CORE_ADDR hw_wp_mask; | |
981 | }; | |
982 | ||
b775012e LM |
983 | /* Return true if BPT is either a software breakpoint or a hardware |
984 | breakpoint. */ | |
985 | ||
f2478a7e | 986 | extern bool is_breakpoint (const struct breakpoint *bpt); |
b775012e | 987 | |
f2478a7e SM |
988 | /* Return true if BPT is of any watchpoint kind, hardware or |
989 | software. */ | |
3a5c3e22 | 990 | |
f2478a7e | 991 | extern bool is_watchpoint (const struct breakpoint *bpt); |
d6e956e5 | 992 | |
a38118e5 PA |
993 | /* Return true if BPT is a C++ exception catchpoint (catch |
994 | catch/throw/rethrow). */ | |
995 | ||
996 | extern bool is_exception_catchpoint (breakpoint *bp); | |
997 | ||
d9b3f62e | 998 | /* An instance of this type is used to represent all kinds of |
c1fc2657 | 999 | tracepoints. */ |
d9b3f62e | 1000 | |
74421c0b | 1001 | struct tracepoint : public code_breakpoint |
d9b3f62e | 1002 | { |
74421c0b | 1003 | using code_breakpoint::code_breakpoint; |
73063f51 | 1004 | |
779dcceb TT |
1005 | int breakpoint_hit (const struct bp_location *bl, |
1006 | const address_space *aspace, CORE_ADDR bp_addr, | |
1007 | const target_waitstatus &ws) override; | |
1008 | void print_one_detail (struct ui_out *uiout) const override; | |
b713485d | 1009 | void print_mention () const override; |
4d1ae558 | 1010 | void print_recreate (struct ui_file *fp) const override; |
779dcceb | 1011 | |
d9b3f62e PA |
1012 | /* Number of times this tracepoint should single-step and collect |
1013 | additional data. */ | |
b68f26de | 1014 | long step_count = 0; |
d9b3f62e PA |
1015 | |
1016 | /* Number of times this tracepoint should be hit before | |
1017 | disabling/ending. */ | |
b68f26de | 1018 | int pass_count = 0; |
d9b3f62e PA |
1019 | |
1020 | /* The number of the tracepoint on the target. */ | |
b68f26de | 1021 | int number_on_target = 0; |
d9b3f62e | 1022 | |
f196051f SS |
1023 | /* The total space taken by all the trace frames for this |
1024 | tracepoint. */ | |
b68f26de | 1025 | ULONGEST traceframe_usage = 0; |
f196051f | 1026 | |
d9b3f62e | 1027 | /* The static tracepoint marker id, if known. */ |
5d9310c4 | 1028 | std::string static_trace_marker_id; |
d9b3f62e PA |
1029 | |
1030 | /* LTTng/UST allow more than one marker with the same ID string, | |
1031 | although it unadvised because it confuses tools. When setting | |
1032 | static tracepoints by marker ID, this will record the index in | |
1033 | the array of markers we found for the given marker ID for which | |
1034 | this static tracepoint corresponds. When resetting breakpoints, | |
1035 | we will use this index to try to find the same marker again. */ | |
b68f26de | 1036 | int static_trace_marker_id_idx = 0; |
d9b3f62e PA |
1037 | }; |
1038 | ||
9a71ed14 | 1039 | /* The abstract base class for catchpoints. */ |
fed1c982 | 1040 | |
acd0955b | 1041 | struct catchpoint : public breakpoint |
fed1c982 TT |
1042 | { |
1043 | /* If TEMP is true, then make the breakpoint temporary. If | |
1044 | COND_STRING is not NULL, then store it in the breakpoint. */ | |
1045 | catchpoint (struct gdbarch *gdbarch, bool temp, const char *cond_string); | |
1046 | ||
1c2cbcf1 | 1047 | ~catchpoint () override = 0; |
fed1c982 TT |
1048 | }; |
1049 | ||
c906108c | 1050 | \f |
53a5351d JM |
1051 | /* The following stuff is an abstract data type "bpstat" ("breakpoint |
1052 | status"). This provides the ability to determine whether we have | |
1053 | stopped at a breakpoint, and what we should do about it. */ | |
c906108c | 1054 | |
198757a8 VP |
1055 | /* Clears a chain of bpstat, freeing storage |
1056 | of each. */ | |
313f3b21 | 1057 | extern void bpstat_clear (bpstat **); |
c906108c SS |
1058 | |
1059 | /* Return a copy of a bpstat. Like "bs1 = bs2" but all storage that | |
1060 | is part of the bpstat is copied as well. */ | |
313f3b21 | 1061 | extern bpstat *bpstat_copy (bpstat *); |
c906108c | 1062 | |
ddfe970e KS |
1063 | /* Build the (raw) bpstat chain for the stop information given by ASPACE, |
1064 | BP_ADDR, and WS. Returns the head of the bpstat chain. */ | |
1065 | ||
313f3b21 | 1066 | extern bpstat *build_bpstat_chain (const address_space *aspace, |
ddfe970e | 1067 | CORE_ADDR bp_addr, |
c272a98c | 1068 | const target_waitstatus &ws); |
ddfe970e KS |
1069 | |
1070 | /* Get a bpstat associated with having just stopped at address | |
1071 | BP_ADDR in thread PTID. STOP_CHAIN may be supplied as a previously | |
1072 | computed stop chain or NULL, in which case the stop chain will be | |
1073 | computed using build_bpstat_chain. | |
1074 | ||
1075 | Determine whether we stopped at a breakpoint, etc, or whether we | |
1076 | don't understand this stop. Result is a chain of bpstat's such | |
1077 | that: | |
1078 | ||
1079 | if we don't understand the stop, the result is a null pointer. | |
1080 | ||
1081 | if we understand why we stopped, the result is not null. | |
1082 | ||
1083 | Each element of the chain refers to a particular breakpoint or | |
1084 | watchpoint at which we have stopped. (We may have stopped for | |
1085 | several reasons concurrently.) | |
1086 | ||
1087 | Each element of the chain has valid next, breakpoint_at, | |
d37e0847 PA |
1088 | commands, FIXME??? fields. |
1089 | ||
1090 | watchpoints_triggered must be called beforehand to set up each | |
1091 | watchpoint's watchpoint_triggered value. | |
1092 | ||
1093 | */ | |
ddfe970e | 1094 | |
313f3b21 | 1095 | extern bpstat *bpstat_stop_status (const address_space *aspace, |
00431a78 | 1096 | CORE_ADDR pc, thread_info *thread, |
c272a98c | 1097 | const target_waitstatus &ws, |
313f3b21 | 1098 | bpstat *stop_chain = nullptr); |
d37e0847 PA |
1099 | |
1100 | /* Like bpstat_stop_status, but clears all watchpoints' | |
1101 | watchpoint_triggered flag. Unlike with bpstat_stop_status, there's | |
1102 | no need to call watchpoint_triggered beforehand. You'll typically | |
1103 | use this variant when handling a known-non-watchpoint event, like a | |
1104 | fork or exec event. */ | |
1105 | ||
1106 | extern bpstat *bpstat_stop_status_nowatch (const address_space *aspace, | |
1107 | CORE_ADDR bp_addr, | |
1108 | thread_info *thread, | |
1109 | const target_waitstatus &ws); | |
c906108c | 1110 | \f |
d37e0847 PA |
1111 | |
1112 | ||
c906108c | 1113 | /* This bpstat_what stuff tells wait_for_inferior what to do with a |
628fe4e4 JK |
1114 | breakpoint (a challenging task). |
1115 | ||
1116 | The enum values order defines priority-like order of the actions. | |
1117 | Once you've decided that some action is appropriate, you'll never | |
1118 | go back and decide something of a lower priority is better. Each | |
1119 | of these actions is mutually exclusive with the others. That | |
1120 | means, that if you find yourself adding a new action class here and | |
1121 | wanting to tell GDB that you have two simultaneous actions to | |
1122 | handle, something is wrong, and you probably don't actually need a | |
1123 | new action type. | |
1124 | ||
1125 | Note that a step resume breakpoint overrides another breakpoint of | |
1126 | signal handling (see comment in wait_for_inferior at where we set | |
1127 | the step_resume breakpoint). */ | |
c906108c | 1128 | |
c5aa993b JM |
1129 | enum bpstat_what_main_action |
1130 | { | |
1131 | /* Perform various other tests; that is, this bpstat does not | |
1132 | say to perform any action (e.g. failed watchpoint and nothing | |
1133 | else). */ | |
1134 | BPSTAT_WHAT_KEEP_CHECKING, | |
1135 | ||
c5aa993b | 1136 | /* Remove breakpoints, single step once, then put them back in and |
0e2de366 MS |
1137 | go back to what we were doing. It's possible that this should |
1138 | be removed from the main_action and put into a separate field, | |
1139 | to more cleanly handle | |
1140 | BPSTAT_WHAT_CLEAR_LONGJMP_RESUME_SINGLE. */ | |
c5aa993b JM |
1141 | BPSTAT_WHAT_SINGLE, |
1142 | ||
1143 | /* Set longjmp_resume breakpoint, remove all other breakpoints, | |
0e2de366 MS |
1144 | and continue. The "remove all other breakpoints" part is |
1145 | required if we are also stepping over another breakpoint as | |
1146 | well as doing the longjmp handling. */ | |
c5aa993b JM |
1147 | BPSTAT_WHAT_SET_LONGJMP_RESUME, |
1148 | ||
1149 | /* Clear longjmp_resume breakpoint, then handle as | |
1150 | BPSTAT_WHAT_KEEP_CHECKING. */ | |
1151 | BPSTAT_WHAT_CLEAR_LONGJMP_RESUME, | |
1152 | ||
2c03e5be PA |
1153 | /* Clear step resume breakpoint, and keep checking. */ |
1154 | BPSTAT_WHAT_STEP_RESUME, | |
1155 | ||
628fe4e4 JK |
1156 | /* Rather than distinguish between noisy and silent stops here, it |
1157 | might be cleaner to have bpstat_print make that decision (also | |
1158 | taking into account stop_print_frame and source_only). But the | |
0e2de366 MS |
1159 | implications are a bit scary (interaction with auto-displays, |
1160 | etc.), so I won't try it. */ | |
c5aa993b | 1161 | |
628fe4e4 JK |
1162 | /* Stop silently. */ |
1163 | BPSTAT_WHAT_STOP_SILENT, | |
c5aa993b | 1164 | |
628fe4e4 JK |
1165 | /* Stop and print. */ |
1166 | BPSTAT_WHAT_STOP_NOISY, | |
4efc6507 | 1167 | |
2c03e5be PA |
1168 | /* Clear step resume breakpoint, and keep checking. High-priority |
1169 | step-resume breakpoints are used when even if there's a user | |
1170 | breakpoint at the current PC when we set the step-resume | |
1171 | breakpoint, we don't want to re-handle any breakpoint other | |
1172 | than the step-resume when it's hit; instead we want to move | |
1173 | past the breakpoint. This is used in the case of skipping | |
1174 | signal handlers. */ | |
1175 | BPSTAT_WHAT_HP_STEP_RESUME, | |
c5aa993b JM |
1176 | }; |
1177 | ||
aa7d318d TT |
1178 | /* An enum indicating the kind of "stack dummy" stop. This is a bit |
1179 | of a misnomer because only one kind of truly a stack dummy. */ | |
1180 | enum stop_stack_kind | |
1181 | { | |
1182 | /* We didn't stop at a stack dummy breakpoint. */ | |
1183 | STOP_NONE = 0, | |
1184 | ||
1185 | /* Stopped at a stack dummy. */ | |
1186 | STOP_STACK_DUMMY, | |
1187 | ||
1188 | /* Stopped at std::terminate. */ | |
1189 | STOP_STD_TERMINATE | |
1190 | }; | |
1191 | ||
c5aa993b JM |
1192 | struct bpstat_what |
1193 | { | |
1194 | enum bpstat_what_main_action main_action; | |
1195 | ||
0e2de366 MS |
1196 | /* Did we hit a call dummy breakpoint? This only goes with a |
1197 | main_action of BPSTAT_WHAT_STOP_SILENT or | |
1198 | BPSTAT_WHAT_STOP_NOISY (the concept of continuing from a call | |
1199 | dummy without popping the frame is not a useful one). */ | |
aa7d318d | 1200 | enum stop_stack_kind call_dummy; |
186c406b TT |
1201 | |
1202 | /* Used for BPSTAT_WHAT_SET_LONGJMP_RESUME and | |
1203 | BPSTAT_WHAT_CLEAR_LONGJMP_RESUME. True if we are handling a | |
1204 | longjmp, false if we are handling an exception. */ | |
e2d0f980 | 1205 | bool is_longjmp; |
c5aa993b | 1206 | }; |
c906108c SS |
1207 | |
1208 | /* Tell what to do about this bpstat. */ | |
313f3b21 | 1209 | struct bpstat_what bpstat_what (bpstat *); |
243a9253 PA |
1210 | |
1211 | /* Run breakpoint event callbacks associated with the breakpoints that | |
1212 | triggered. */ | |
313f3b21 | 1213 | extern void bpstat_run_callbacks (bpstat *bs_head); |
243a9253 | 1214 | |
0e2de366 | 1215 | /* Find the bpstat associated with a breakpoint. NULL otherwise. */ |
313f3b21 | 1216 | bpstat *bpstat_find_breakpoint (bpstat *, struct breakpoint *); |
c906108c | 1217 | |
4c462cb0 | 1218 | /* True if a signal that we got in target_wait() was due to |
47591c29 PA |
1219 | circumstances explained by the bpstat; the signal is therefore not |
1220 | random. */ | |
313f3b21 | 1221 | extern bool bpstat_explains_signal (bpstat *, enum gdb_signal); |
c906108c | 1222 | |
4c462cb0 | 1223 | /* True if this bpstat causes a stop. */ |
313f3b21 | 1224 | extern bool bpstat_causes_stop (bpstat *); |
67822962 | 1225 | |
4c462cb0 | 1226 | /* True if we should step constantly (e.g. watchpoints on machines |
c906108c SS |
1227 | without hardware support). This isn't related to a specific bpstat, |
1228 | just to things like whether watchpoints are set. */ | |
4c462cb0 | 1229 | extern bool bpstat_should_step (); |
c906108c | 1230 | |
403c71fd SM |
1231 | /* Print a message indicating what happened. */ |
1232 | extern enum print_stop_action bpstat_print (bpstat *bs, target_waitkind kind); | |
c906108c | 1233 | |
0e2de366 MS |
1234 | /* Put in *NUM the breakpoint number of the first breakpoint we are |
1235 | stopped at. *BSP upon return is a bpstat which points to the | |
1236 | remaining breakpoints stopped at (but which is not guaranteed to be | |
1237 | good for anything but further calls to bpstat_num). | |
1238 | ||
8671a17b PA |
1239 | Return 0 if passed a bpstat which does not indicate any breakpoints. |
1240 | Return -1 if stopped at a breakpoint that has been deleted since | |
1241 | we set it. | |
1242 | Return 1 otherwise. */ | |
313f3b21 | 1243 | extern int bpstat_num (bpstat **, int *); |
c906108c | 1244 | |
78805ff8 PW |
1245 | /* If BS indicates a breakpoint and this breakpoint has several code locations, |
1246 | return the location number of BS, otherwise return 0. */ | |
1247 | ||
1248 | extern int bpstat_locno (const bpstat *bs); | |
1249 | ||
1250 | /* Print BS breakpoint number optionally followed by a . and breakpoint locno. | |
1251 | ||
1252 | For a breakpoint with only one code location, outputs the signed field | |
1253 | "bkptno" breakpoint number of BS (as returned by bpstat_num). | |
1254 | If BS has several code locations, outputs a '.' character followed by | |
1255 | the signed field "locno" (as returned by bpstat_locno). */ | |
1256 | ||
1257 | extern void print_num_locno (const bpstat *bs, struct ui_out *); | |
1258 | ||
347bddb7 PA |
1259 | /* Perform actions associated with the stopped inferior. Actually, we |
1260 | just use this for breakpoint commands. Perhaps other actions will | |
1261 | go here later, but this is executed at a late time (from the | |
1262 | command loop). */ | |
1263 | extern void bpstat_do_actions (void); | |
c906108c | 1264 | |
e93ca019 JK |
1265 | /* Modify all entries of STOP_BPSTAT of INFERIOR_PTID so that the actions will |
1266 | not be performed. */ | |
1267 | extern void bpstat_clear_actions (void); | |
c906108c | 1268 | |
c906108c | 1269 | /* Implementation: */ |
e514a9d6 | 1270 | |
0e2de366 MS |
1271 | /* Values used to tell the printing routine how to behave for this |
1272 | bpstat. */ | |
e514a9d6 JM |
1273 | enum bp_print_how |
1274 | { | |
1275 | /* This is used when we want to do a normal printing of the reason | |
0e2de366 MS |
1276 | for stopping. The output will depend on the type of eventpoint |
1277 | we are dealing with. This is the default value, most commonly | |
1278 | used. */ | |
e514a9d6 | 1279 | print_it_normal, |
0e2de366 MS |
1280 | /* This is used when nothing should be printed for this bpstat |
1281 | entry. */ | |
e514a9d6 JM |
1282 | print_it_noop, |
1283 | /* This is used when everything which needs to be printed has | |
1284 | already been printed. But we still want to print the frame. */ | |
1285 | print_it_done | |
1286 | }; | |
1287 | ||
313f3b21 | 1288 | struct bpstat |
c5aa993b | 1289 | { |
313f3b21 SM |
1290 | bpstat (); |
1291 | bpstat (struct bp_location *bl, bpstat ***bs_link_pointer); | |
04afa70c | 1292 | |
313f3b21 SM |
1293 | bpstat (const bpstat &); |
1294 | bpstat &operator= (const bpstat &) = delete; | |
04afa70c | 1295 | |
f431efe5 PA |
1296 | /* Linked list because there can be more than one breakpoint at |
1297 | the same place, and a bpstat reflects the fact that all have | |
1298 | been hit. */ | |
313f3b21 | 1299 | bpstat *next; |
f431efe5 PA |
1300 | |
1301 | /* Location that caused the stop. Locations are refcounted, so | |
1302 | this will never be NULL. Note that this location may end up | |
1303 | detached from a breakpoint, but that does not necessary mean | |
1304 | that the struct breakpoint is gone. E.g., consider a | |
1305 | watchpoint with a condition that involves an inferior function | |
1306 | call. Watchpoint locations are recreated often (on resumes, | |
1307 | hence on infcalls too). Between creating the bpstat and after | |
1308 | evaluating the watchpoint condition, this location may hence | |
1309 | end up detached from its original owner watchpoint, even though | |
1310 | the watchpoint is still listed. If it's condition evaluates as | |
1311 | true, we still want this location to cause a stop, and we will | |
1312 | still need to know which watchpoint it was originally attached. | |
1313 | What this means is that we should not (in most cases) follow | |
1314 | the `bpstat->bp_location->owner' link, but instead use the | |
1315 | `breakpoint_at' field below. */ | |
b6433ede | 1316 | bp_location_ref_ptr bp_location_at; |
f431efe5 PA |
1317 | |
1318 | /* Breakpoint that caused the stop. This is nullified if the | |
1319 | breakpoint ends up being deleted. See comments on | |
1320 | `bp_location_at' above for why do we need this field instead of | |
1321 | following the location's owner. */ | |
1322 | struct breakpoint *breakpoint_at; | |
1323 | ||
9add0f1b | 1324 | /* The associated command list. */ |
d1b0a7bf | 1325 | counted_command_line commands; |
f431efe5 | 1326 | |
c5aa993b | 1327 | /* Old value associated with a watchpoint. */ |
850645cf | 1328 | value_ref_ptr old_val; |
c5aa993b | 1329 | |
4ec2227a TT |
1330 | /* True if this breakpoint tells us to print the frame. */ |
1331 | bool print; | |
c5aa993b | 1332 | |
4ec2227a TT |
1333 | /* True if this breakpoint tells us to stop. */ |
1334 | bool stop; | |
c5aa993b | 1335 | |
e514a9d6 JM |
1336 | /* Tell bpstat_print and print_bp_stop_message how to print stuff |
1337 | associated with this element of the bpstat chain. */ | |
1338 | enum bp_print_how print_it; | |
c5aa993b | 1339 | }; |
c906108c SS |
1340 | |
1341 | enum inf_context | |
c5aa993b JM |
1342 | { |
1343 | inf_starting, | |
1344 | inf_running, | |
6ca15a4b PA |
1345 | inf_exited, |
1346 | inf_execd | |
c5aa993b | 1347 | }; |
c2c6d25f JM |
1348 | |
1349 | /* The possible return values for breakpoint_here_p. | |
1350 | We guarantee that zero always means "no breakpoint here". */ | |
1351 | enum breakpoint_here | |
1352 | { | |
1353 | no_breakpoint_here = 0, | |
1354 | ordinary_breakpoint_here, | |
1355 | permanent_breakpoint_here | |
1356 | }; | |
c906108c | 1357 | \f |
c5aa993b | 1358 | |
c906108c SS |
1359 | /* Prototypes for breakpoint-related functions. */ |
1360 | ||
accd0bcd | 1361 | extern enum breakpoint_here breakpoint_here_p (const address_space *, |
0e2de366 | 1362 | CORE_ADDR); |
c906108c | 1363 | |
d35ae833 PA |
1364 | /* Return true if an enabled breakpoint exists in the range defined by |
1365 | ADDR and LEN, in ASPACE. */ | |
accd0bcd | 1366 | extern int breakpoint_in_range_p (const address_space *aspace, |
d35ae833 PA |
1367 | CORE_ADDR addr, ULONGEST len); |
1368 | ||
accd0bcd | 1369 | extern int moribund_breakpoint_here_p (const address_space *, CORE_ADDR); |
1c5cfe86 | 1370 | |
accd0bcd YQ |
1371 | extern int breakpoint_inserted_here_p (const address_space *, |
1372 | CORE_ADDR); | |
c906108c | 1373 | |
accd0bcd | 1374 | extern int software_breakpoint_inserted_here_p (const address_space *, |
0e2de366 | 1375 | CORE_ADDR); |
4fa8626c | 1376 | |
9c02b525 PA |
1377 | /* Return non-zero iff there is a hardware breakpoint inserted at |
1378 | PC. */ | |
accd0bcd | 1379 | extern int hardware_breakpoint_inserted_here_p (const address_space *, |
9c02b525 PA |
1380 | CORE_ADDR); |
1381 | ||
34b7e8a6 PA |
1382 | /* Check whether any location of BP is inserted at PC. */ |
1383 | ||
1384 | extern int breakpoint_has_location_inserted_here (struct breakpoint *bp, | |
accd0bcd | 1385 | const address_space *aspace, |
34b7e8a6 PA |
1386 | CORE_ADDR pc); |
1387 | ||
accd0bcd | 1388 | extern int single_step_breakpoint_inserted_here_p (const address_space *, |
2adfaa28 PA |
1389 | CORE_ADDR); |
1390 | ||
9093389c PA |
1391 | /* Returns true if there's a hardware watchpoint or access watchpoint |
1392 | inserted in the range defined by ADDR and LEN. */ | |
accd0bcd | 1393 | extern int hardware_watchpoint_inserted_in_range (const address_space *, |
9093389c PA |
1394 | CORE_ADDR addr, |
1395 | ULONGEST len); | |
1396 | ||
31e77af2 PA |
1397 | /* Returns true if {ASPACE1,ADDR1} and {ASPACE2,ADDR2} represent the |
1398 | same breakpoint location. In most targets, this can only be true | |
1399 | if ASPACE1 matches ASPACE2. On targets that have global | |
1400 | breakpoints, the address space doesn't really matter. */ | |
1401 | ||
accd0bcd | 1402 | extern int breakpoint_address_match (const address_space *aspace1, |
31e77af2 | 1403 | CORE_ADDR addr1, |
accd0bcd | 1404 | const address_space *aspace2, |
31e77af2 PA |
1405 | CORE_ADDR addr2); |
1406 | ||
f2fc3015 | 1407 | extern void until_break_command (const char *, int, int); |
c906108c | 1408 | |
28010a5d PA |
1409 | /* Initialize a struct bp_location. */ |
1410 | ||
6c5b2ebe | 1411 | extern void update_breakpoint_locations |
74421c0b | 1412 | (code_breakpoint *b, |
6c5b2ebe PA |
1413 | struct program_space *filter_pspace, |
1414 | gdb::array_view<const symtab_and_line> sals, | |
1415 | gdb::array_view<const symtab_and_line> sals_end); | |
0e30163f | 1416 | |
a14ed312 | 1417 | extern void breakpoint_re_set (void); |
69de3c6a | 1418 | |
a14ed312 | 1419 | extern void breakpoint_re_set_thread (struct breakpoint *); |
c906108c | 1420 | |
454dafbd TT |
1421 | extern void delete_breakpoint (struct breakpoint *); |
1422 | ||
1423 | struct breakpoint_deleter | |
1424 | { | |
1425 | void operator() (struct breakpoint *b) const | |
1426 | { | |
1427 | delete_breakpoint (b); | |
1428 | } | |
1429 | }; | |
1430 | ||
1431 | typedef std::unique_ptr<struct breakpoint, breakpoint_deleter> breakpoint_up; | |
1432 | ||
1433 | extern breakpoint_up set_momentary_breakpoint | |
a6d9a66e | 1434 | (struct gdbarch *, struct symtab_and_line, struct frame_id, enum bptype); |
c906108c | 1435 | |
454dafbd | 1436 | extern breakpoint_up set_momentary_breakpoint_at_pc |
a6d9a66e | 1437 | (struct gdbarch *, CORE_ADDR pc, enum bptype type); |
611c83ae | 1438 | |
e58b0e63 PA |
1439 | extern struct breakpoint *clone_momentary_breakpoint (struct breakpoint *bpkt); |
1440 | ||
a14ed312 | 1441 | extern void set_ignore_count (int, int, int); |
c906108c | 1442 | |
a14ed312 | 1443 | extern void breakpoint_init_inferior (enum inf_context); |
c906108c | 1444 | |
313f3b21 | 1445 | extern void breakpoint_auto_delete (bpstat *); |
c906108c | 1446 | |
5cea2a26 PA |
1447 | /* Return the chain of command lines to execute when this breakpoint |
1448 | is hit. */ | |
1449 | extern struct command_line *breakpoint_commands (struct breakpoint *b); | |
1450 | ||
956a9fb9 JB |
1451 | /* Return a string image of DISP. The string is static, and thus should |
1452 | NOT be deallocated after use. */ | |
1453 | const char *bpdisp_text (enum bpdisp disp); | |
1454 | ||
0b39b52e | 1455 | extern void break_command (const char *, int); |
c906108c | 1456 | |
2e362716 AB |
1457 | extern void watch_command_wrapper (const char *, int, bool); |
1458 | extern void awatch_command_wrapper (const char *, int, bool); | |
1459 | extern void rwatch_command_wrapper (const char *, int, bool); | |
0b39b52e | 1460 | extern void tbreak_command (const char *, int); |
c906108c | 1461 | |
74421c0b | 1462 | extern const struct breakpoint_ops code_breakpoint_ops; |
348d480f | 1463 | |
9ac4176b PA |
1464 | /* Arguments to pass as context to some catch command handlers. */ |
1465 | #define CATCH_PERMANENT ((void *) (uintptr_t) 0) | |
1466 | #define CATCH_TEMPORARY ((void *) (uintptr_t) 1) | |
1467 | ||
1468 | /* Like add_cmd, but add the command to both the "catch" and "tcatch" | |
1469 | lists, and pass some additional user data to the command | |
1470 | function. */ | |
1471 | ||
1472 | extern void | |
a121b7c1 | 1473 | add_catch_command (const char *name, const char *docstring, |
5538b03c | 1474 | cmd_func_ftype *func, |
625e8578 | 1475 | completer_ftype *completer, |
9ac4176b PA |
1476 | void *user_data_catch, |
1477 | void *user_data_tcatch); | |
1478 | ||
28010a5d | 1479 | /* Add breakpoint B on the breakpoint list, and notify the user, the |
3a5c3e22 PA |
1480 | target and breakpoint_created observers of its existence. If |
1481 | INTERNAL is non-zero, the breakpoint number will be allocated from | |
3ea46bff YQ |
1482 | the internal breakpoint count. If UPDATE_GLL is non-zero, |
1483 | update_global_location_list will be called. */ | |
28010a5d | 1484 | |
b270e6f9 | 1485 | extern void install_breakpoint (int internal, std::unique_ptr<breakpoint> &&b, |
3ea46bff | 1486 | int update_gll); |
9ac4176b | 1487 | |
264f9890 PA |
1488 | /* Returns the breakpoint ops appropriate for use with with LOCSPEC |
1489 | and according to IS_TRACEPOINT. Use this to ensure, for example, | |
1490 | that you pass the correct ops to create_breakpoint for probe | |
1491 | location specs. If LOCSPEC is NULL, returns | |
1492 | code_breakpoint_ops. */ | |
bac7c5cf | 1493 | |
264f9890 PA |
1494 | extern const struct breakpoint_ops *breakpoint_ops_for_location_spec |
1495 | (const location_spec *locspec, bool is_tracepoint); | |
bac7c5cf | 1496 | |
44f238bb PA |
1497 | /* Flags that can be passed down to create_breakpoint, etc., to affect |
1498 | breakpoint creation in several ways. */ | |
1499 | ||
1500 | enum breakpoint_create_flags | |
1501 | { | |
1502 | /* We're adding a breakpoint to our tables that is already | |
1503 | inserted in the target. */ | |
1504 | CREATE_BREAKPOINT_FLAGS_INSERTED = 1 << 0 | |
1505 | }; | |
1506 | ||
264f9890 PA |
1507 | /* Set a breakpoint. This function is shared between CLI and MI |
1508 | functions for setting a breakpoint at LOCSPEC. | |
f00aae0f KS |
1509 | |
1510 | This function has two major modes of operations, selected by the | |
1511 | PARSE_EXTRA parameter. | |
1512 | ||
264f9890 PA |
1513 | If PARSE_EXTRA is zero, LOCSPEC is just the breakpoint's location |
1514 | spec, with condition, thread, and extra string specified by the | |
1515 | COND_STRING, THREAD, and EXTRA_STRING parameters. | |
f00aae0f KS |
1516 | |
1517 | If PARSE_EXTRA is non-zero, this function will attempt to extract | |
1518 | the condition, thread, and extra string from EXTRA_STRING, ignoring | |
1519 | the similarly named parameters. | |
1520 | ||
10a636cc TBA |
1521 | If FORCE_CONDITION is true, the condition is accepted even when it is |
1522 | invalid at all of the locations. However, if PARSE_EXTRA is non-zero, | |
1523 | the FORCE_CONDITION parameter is ignored and the corresponding argument | |
1524 | is parsed from EXTRA_STRING. | |
1525 | ||
f00aae0f KS |
1526 | If INTERNAL is non-zero, the breakpoint number will be allocated |
1527 | from the internal breakpoint count. | |
1528 | ||
1529 | Returns true if any breakpoint was created; false otherwise. */ | |
1530 | ||
1531 | extern int create_breakpoint (struct gdbarch *gdbarch, | |
264f9890 | 1532 | struct location_spec *locspec, |
e1e01040 PA |
1533 | const char *cond_string, int thread, |
1534 | const char *extra_string, | |
10a636cc | 1535 | bool force_condition, |
f00aae0f | 1536 | int parse_extra, |
0fb4aa4b | 1537 | int tempflag, enum bptype wanted_type, |
8cdf0e15 VP |
1538 | int ignore_count, |
1539 | enum auto_boolean pending_break_support, | |
c0a91b2b | 1540 | const struct breakpoint_ops *ops, |
8cdf0e15 | 1541 | int from_tty, |
84f4c1fe | 1542 | int enabled, |
44f238bb | 1543 | int internal, unsigned flags); |
98deb0da | 1544 | |
e236ba44 | 1545 | extern void insert_breakpoints (void); |
c906108c | 1546 | |
a14ed312 | 1547 | extern int remove_breakpoints (void); |
c906108c | 1548 | |
f3869b1a SM |
1549 | /* Remove breakpoints of inferior INF. */ |
1550 | ||
1551 | extern void remove_breakpoints_inf (inferior *inf); | |
6c95b8df | 1552 | |
c906108c SS |
1553 | /* This function can be used to update the breakpoint package's state |
1554 | after an exec() system call has been executed. | |
1555 | ||
1556 | This function causes the following: | |
1557 | ||
c5aa993b JM |
1558 | - All eventpoints are marked "not inserted". |
1559 | - All eventpoints with a symbolic address are reset such that | |
1560 | the symbolic address must be reevaluated before the eventpoints | |
1561 | can be reinserted. | |
1562 | - The solib breakpoints are explicitly removed from the breakpoint | |
1563 | list. | |
1564 | - A step-resume breakpoint, if any, is explicitly removed from the | |
1565 | breakpoint list. | |
1566 | - All eventpoints without a symbolic address are removed from the | |
0e2de366 | 1567 | breakpoint list. */ |
a14ed312 | 1568 | extern void update_breakpoints_after_exec (void); |
c906108c SS |
1569 | |
1570 | /* This function can be used to physically remove hardware breakpoints | |
1571 | and watchpoints from the specified traced inferior process, without | |
1572 | modifying the breakpoint package's state. This can be useful for | |
1573 | those targets which support following the processes of a fork() or | |
1574 | vfork() system call, when one of the resulting two processes is to | |
1575 | be detached and allowed to run free. | |
c5aa993b | 1576 | |
c906108c | 1577 | It is an error to use this function on the process whose id is |
39f77062 | 1578 | inferior_ptid. */ |
d80ee84f | 1579 | extern int detach_breakpoints (ptid_t ptid); |
c5aa993b | 1580 | |
6c95b8df PA |
1581 | /* This function is called when program space PSPACE is about to be |
1582 | deleted. It takes care of updating breakpoints to not reference | |
1583 | this PSPACE anymore. */ | |
1584 | extern void breakpoint_program_space_exit (struct program_space *pspace); | |
1585 | ||
186c406b TT |
1586 | extern void set_longjmp_breakpoint (struct thread_info *tp, |
1587 | struct frame_id frame); | |
611c83ae PA |
1588 | extern void delete_longjmp_breakpoint (int thread); |
1589 | ||
f59f708a PA |
1590 | /* Mark all longjmp breakpoints from THREAD for later deletion. */ |
1591 | extern void delete_longjmp_breakpoint_at_next_stop (int thread); | |
1592 | ||
e2e4d78b | 1593 | extern struct breakpoint *set_longjmp_breakpoint_for_call_dummy (void); |
b67a2c6f | 1594 | extern void check_longjmp_breakpoint_for_call_dummy (struct thread_info *tp); |
e2e4d78b | 1595 | |
1900040c MS |
1596 | extern void enable_overlay_breakpoints (void); |
1597 | extern void disable_overlay_breakpoints (void); | |
c906108c | 1598 | |
aa7d318d TT |
1599 | extern void set_std_terminate_breakpoint (void); |
1600 | extern void delete_std_terminate_breakpoint (void); | |
1601 | ||
c906108c SS |
1602 | /* These functions respectively disable or reenable all currently |
1603 | enabled watchpoints. When disabled, the watchpoints are marked | |
64b9b334 | 1604 | call_disabled. When re-enabled, they are marked enabled. |
c906108c | 1605 | |
04714b91 | 1606 | The intended client of these functions is call_function_by_hand. |
c906108c SS |
1607 | |
1608 | The inferior must be stopped, and all breakpoints removed, when | |
1609 | these functions are used. | |
1610 | ||
1611 | The need for these functions is that on some targets (e.g., HP-UX), | |
1612 | gdb is unable to unwind through the dummy frame that is pushed as | |
1613 | part of the implementation of a call command. Watchpoints can | |
1614 | cause the inferior to stop in places where this frame is visible, | |
1615 | and that can cause execution control to become very confused. | |
1616 | ||
7e73cedf | 1617 | Note that if a user sets breakpoints in an interactively called |
64b9b334 | 1618 | function, the call_disabled watchpoints will have been re-enabled |
c906108c SS |
1619 | when the first such breakpoint is reached. However, on targets |
1620 | that are unable to unwind through the call dummy frame, watches | |
1621 | of stack-based storage may then be deleted, because gdb will | |
1622 | believe that their watched storage is out of scope. (Sigh.) */ | |
a14ed312 | 1623 | extern void disable_watchpoints_before_interactive_call_start (void); |
c906108c | 1624 | |
a14ed312 | 1625 | extern void enable_watchpoints_after_interactive_call_stop (void); |
c906108c | 1626 | |
8bea4e01 UW |
1627 | /* These functions disable and re-enable all breakpoints during |
1628 | inferior startup. They are intended to be called from solib | |
1629 | code where necessary. This is needed on platforms where the | |
1630 | main executable is relocated at some point during startup | |
1631 | processing, making breakpoint addresses invalid. | |
1632 | ||
1633 | If additional breakpoints are created after the routine | |
1634 | disable_breakpoints_before_startup but before the routine | |
1635 | enable_breakpoints_after_startup was called, they will also | |
1636 | be marked as disabled. */ | |
1637 | extern void disable_breakpoints_before_startup (void); | |
1638 | extern void enable_breakpoints_after_startup (void); | |
1639 | ||
40c03ae8 | 1640 | /* For script interpreters that need to define breakpoint commands |
0e2de366 MS |
1641 | after they've already read the commands into a struct |
1642 | command_line. */ | |
40c03ae8 | 1643 | extern enum command_control_type commands_from_control_command |
896b6bda | 1644 | (const char *arg, struct command_line *cmd); |
c5aa993b | 1645 | |
a14ed312 | 1646 | extern void clear_breakpoint_hit_counts (void); |
c906108c | 1647 | |
48cb2d85 VP |
1648 | extern struct breakpoint *get_breakpoint (int num); |
1649 | ||
0e2de366 MS |
1650 | /* The following are for displays, which aren't really breakpoints, |
1651 | but here is as good a place as any for them. */ | |
c906108c | 1652 | |
a14ed312 | 1653 | extern void disable_current_display (void); |
c906108c | 1654 | |
a14ed312 | 1655 | extern void do_displays (void); |
c906108c | 1656 | |
a14ed312 | 1657 | extern void disable_display (int); |
c906108c | 1658 | |
a14ed312 | 1659 | extern void clear_displays (void); |
c906108c | 1660 | |
a14ed312 | 1661 | extern void disable_breakpoint (struct breakpoint *); |
c906108c | 1662 | |
a14ed312 | 1663 | extern void enable_breakpoint (struct breakpoint *); |
c906108c | 1664 | |
48cb2d85 | 1665 | extern void breakpoint_set_commands (struct breakpoint *b, |
12973681 | 1666 | counted_command_line &&commands); |
48cb2d85 | 1667 | |
45a43567 TT |
1668 | extern void breakpoint_set_silent (struct breakpoint *b, int silent); |
1669 | ||
1670 | extern void breakpoint_set_thread (struct breakpoint *b, int thread); | |
1671 | ||
1672 | extern void breakpoint_set_task (struct breakpoint *b, int task); | |
1673 | ||
25b22b0a PA |
1674 | /* Clear the "inserted" flag in all breakpoints. */ |
1675 | extern void mark_breakpoints_out (void); | |
1676 | ||
4efc6507 | 1677 | extern struct breakpoint *create_jit_event_breakpoint (struct gdbarch *, |
dda83cd7 | 1678 | CORE_ADDR); |
4efc6507 | 1679 | |
a6d9a66e UW |
1680 | extern struct breakpoint *create_solib_event_breakpoint (struct gdbarch *, |
1681 | CORE_ADDR); | |
c906108c | 1682 | |
f37f681c PA |
1683 | /* Create an solib event breakpoint at ADDRESS in the current program |
1684 | space, and immediately try to insert it. Returns a pointer to the | |
1685 | breakpoint on success. Deletes the new breakpoint and returns NULL | |
1686 | if inserting the breakpoint fails. */ | |
1687 | extern struct breakpoint *create_and_insert_solib_event_breakpoint | |
1688 | (struct gdbarch *gdbarch, CORE_ADDR address); | |
1689 | ||
a6d9a66e UW |
1690 | extern struct breakpoint *create_thread_event_breakpoint (struct gdbarch *, |
1691 | CORE_ADDR); | |
c4093a6a | 1692 | |
03673fc7 PP |
1693 | extern void remove_jit_event_breakpoints (void); |
1694 | ||
a14ed312 | 1695 | extern void remove_solib_event_breakpoints (void); |
c906108c | 1696 | |
f37f681c PA |
1697 | /* Mark solib event breakpoints of the current program space with |
1698 | delete at next stop disposition. */ | |
1699 | extern void remove_solib_event_breakpoints_at_next_stop (void); | |
1700 | ||
cb851954 | 1701 | extern void disable_breakpoints_in_shlibs (void); |
c906108c | 1702 | |
f2478a7e SM |
1703 | /* This function returns true if B is a catchpoint. */ |
1704 | ||
1705 | extern bool is_catchpoint (struct breakpoint *b); | |
c5aa993b | 1706 | |
91985142 | 1707 | /* Shared helper function (MI and CLI) for creating and installing |
b650a282 SM |
1708 | a shared object event catchpoint. If IS_LOAD is true then |
1709 | the events to be caught are load events, otherwise they are | |
1710 | unload events. If IS_TEMP is true the catchpoint is a | |
1711 | temporary one. If ENABLED is true the catchpoint is | |
1712 | created in an enabled state. */ | |
1713 | ||
1714 | extern void add_solib_catchpoint (const char *arg, bool is_load, bool is_temp, | |
1715 | bool enabled); | |
91985142 | 1716 | |
7c16b83e PA |
1717 | /* Create and insert a new software single step breakpoint for the |
1718 | current thread. May be called multiple times; each time will add a | |
1719 | new location to the set of potential addresses the next instruction | |
1720 | is at. */ | |
6c95b8df | 1721 | extern void insert_single_step_breakpoint (struct gdbarch *, |
accd0bcd | 1722 | const address_space *, |
0e2de366 | 1723 | CORE_ADDR); |
93f9a11f YQ |
1724 | |
1725 | /* Insert all software single step breakpoints for the current frame. | |
1726 | Return true if any software single step breakpoints are inserted, | |
1727 | otherwise, return false. */ | |
1728 | extern int insert_single_step_breakpoints (struct gdbarch *); | |
1729 | ||
d37e0847 PA |
1730 | /* Check whether any hardware watchpoints have triggered or not, |
1731 | according to the target, and record it in each watchpoint's | |
1732 | 'watchpoint_triggered' field. */ | |
c272a98c | 1733 | int watchpoints_triggered (const target_waitstatus &); |
d983da9c | 1734 | |
f0ba3972 PA |
1735 | /* Helper for transparent breakpoint hiding for memory read and write |
1736 | routines. | |
1737 | ||
1738 | Update one of READBUF or WRITEBUF with either the shadows | |
1739 | (READBUF), or the breakpoint instructions (WRITEBUF) of inserted | |
1740 | breakpoints at the memory range defined by MEMADDR and extending | |
1741 | for LEN bytes. If writing, then WRITEBUF is a copy of WRITEBUF_ORG | |
1742 | on entry.*/ | |
1743 | extern void breakpoint_xfer_memory (gdb_byte *readbuf, gdb_byte *writebuf, | |
1744 | const gdb_byte *writebuf_org, | |
1745 | ULONGEST memaddr, LONGEST len); | |
8defab1a | 1746 | |
b57bacec PA |
1747 | /* Return true if breakpoints should be inserted now. That'll be the |
1748 | case if either: | |
1749 | ||
1750 | - the target has global breakpoints. | |
1751 | ||
1752 | - "breakpoint always-inserted" is on, and the target has | |
1753 | execution. | |
1754 | ||
1755 | - threads are executing. | |
1756 | */ | |
a25a5a45 | 1757 | extern int breakpoints_should_be_inserted_now (void); |
74960c60 | 1758 | |
20874c92 VP |
1759 | /* Called each time new event from target is processed. |
1760 | Retires previously deleted breakpoint locations that | |
1761 | in our opinion won't ever trigger. */ | |
1762 | extern void breakpoint_retire_moribund (void); | |
1763 | ||
733d554a TBA |
1764 | /* Set break condition of breakpoint B to EXP. |
1765 | If FORCE, define the condition even if it is invalid in | |
1766 | all of the breakpoint locations. */ | |
7a26bd4d | 1767 | extern void set_breakpoint_condition (struct breakpoint *b, const char *exp, |
733d554a | 1768 | int from_tty, bool force); |
adc36818 | 1769 | |
79aabb73 TBA |
1770 | /* Set break condition for the breakpoint with number BPNUM to EXP. |
1771 | Raise an error if no breakpoint with the given number is found. | |
1772 | Also raise an error if the breakpoint already has stop conditions. | |
1773 | If FORCE, define the condition even if it is invalid in | |
1774 | all of the breakpoint locations. */ | |
1775 | extern void set_breakpoint_condition (int bpnum, const char *exp, | |
1776 | int from_tty, bool force); | |
1777 | ||
a96d9b2e SDJ |
1778 | /* Checks if we are catching syscalls or not. |
1779 | Returns 0 if not, greater than 0 if we are. */ | |
1780 | extern int catch_syscall_enabled (void); | |
1781 | ||
1782 | /* Checks if we are catching syscalls with the specific | |
1783 | syscall_number. Used for "filtering" the catchpoints. | |
9fe3819e SM |
1784 | Returns false if not, true if we are. */ |
1785 | extern bool catching_syscall_number (int syscall_number); | |
a96d9b2e | 1786 | |
1042e4c0 | 1787 | /* Return a tracepoint with the given number if found. */ |
d9b3f62e | 1788 | extern struct tracepoint *get_tracepoint (int num); |
1042e4c0 | 1789 | |
d9b3f62e | 1790 | extern struct tracepoint *get_tracepoint_by_number_on_target (int num); |
d5551862 | 1791 | |
1042e4c0 | 1792 | /* Find a tracepoint by parsing a number in the supplied string. */ |
d9b3f62e | 1793 | extern struct tracepoint * |
0b39b52e | 1794 | get_tracepoint_by_number (const char **arg, |
bfd28288 | 1795 | number_or_range_parser *parser); |
1042e4c0 | 1796 | |
f2478a7e SM |
1797 | /* Return true if B is of tracepoint kind. */ |
1798 | ||
1799 | extern bool is_tracepoint (const struct breakpoint *b); | |
a7bdde9e | 1800 | |
f51e0e20 TT |
1801 | /* Return a vector of all static tracepoints defined at ADDR. */ |
1802 | extern std::vector<breakpoint *> static_tracepoints_here (CORE_ADDR addr); | |
0fb4aa4b | 1803 | |
c80049d3 TT |
1804 | /* Create an instance of this to start registering breakpoint numbers |
1805 | for a later "commands" command. */ | |
1806 | ||
1807 | class scoped_rbreak_breakpoints | |
1808 | { | |
1809 | public: | |
1810 | ||
1811 | scoped_rbreak_breakpoints (); | |
1812 | ~scoped_rbreak_breakpoints (); | |
1813 | ||
1814 | DISABLE_COPY_AND_ASSIGN (scoped_rbreak_breakpoints); | |
1815 | }; | |
95a42b64 | 1816 | |
f6d17b2b SM |
1817 | /* Breakpoint linked list iterator. */ |
1818 | ||
1819 | using breakpoint_iterator = next_iterator<breakpoint>; | |
1820 | ||
240edef6 SM |
1821 | /* Breakpoint linked list range. */ |
1822 | ||
9be25986 | 1823 | using breakpoint_range = iterator_range<breakpoint_iterator>; |
240edef6 SM |
1824 | |
1825 | /* Return a range to iterate over all breakpoints. */ | |
1826 | ||
1827 | breakpoint_range all_breakpoints (); | |
1828 | ||
1829 | /* Breakpoint linked list range, safe against deletion of the current | |
1830 | breakpoint while iterating. */ | |
1831 | ||
1832 | using breakpoint_safe_range = basic_safe_range<breakpoint_range>; | |
1833 | ||
1834 | /* Return a range to iterate over all breakpoints. This range is safe against | |
1835 | deletion of the current breakpoint while iterating. */ | |
1836 | ||
1837 | breakpoint_safe_range all_breakpoints_safe (); | |
1838 | ||
f6d17b2b SM |
1839 | /* Breakpoint filter to only keep tracepoints. */ |
1840 | ||
1841 | struct tracepoint_filter | |
1842 | { | |
1843 | bool operator() (breakpoint *b) | |
1844 | { return is_tracepoint (b); } | |
1845 | }; | |
1846 | ||
1847 | /* Breakpoint linked list iterator, filtering to only keep tracepoints. */ | |
1848 | ||
1849 | using tracepoint_iterator | |
1850 | = filtered_iterator<breakpoint_iterator, tracepoint_filter>; | |
1851 | ||
1852 | /* Breakpoint linked list range, filtering to only keep tracepoints. */ | |
1853 | ||
9be25986 | 1854 | using tracepoint_range = iterator_range<tracepoint_iterator>; |
f6d17b2b SM |
1855 | |
1856 | /* Return a range to iterate over all tracepoints. */ | |
1857 | ||
1858 | tracepoint_range all_tracepoints (); | |
1859 | ||
055c879f SM |
1860 | /* Return a range to iterate over all breakpoint locations. */ |
1861 | ||
1862 | const std::vector<bp_location *> &all_bp_locations (); | |
1863 | ||
0574c78f GB |
1864 | /* Nonzero if the specified PC cannot be a location where functions |
1865 | have been inlined. */ | |
1866 | ||
accd0bcd | 1867 | extern int pc_at_non_inline_function (const address_space *aspace, |
09ac7c10 | 1868 | CORE_ADDR pc, |
c272a98c | 1869 | const target_waitstatus &ws); |
0574c78f | 1870 | |
09d682a4 TT |
1871 | extern int user_breakpoint_p (struct breakpoint *); |
1872 | ||
93daf339 TT |
1873 | /* Return true if this breakpoint is pending, false if not. */ |
1874 | extern int pending_breakpoint_p (struct breakpoint *); | |
1875 | ||
1bfeeb0f JL |
1876 | /* Attempt to determine architecture of location identified by SAL. */ |
1877 | extern struct gdbarch *get_sal_arch (struct symtab_and_line sal); | |
1878 | ||
2f202fde JK |
1879 | extern void breakpoint_free_objfile (struct objfile *objfile); |
1880 | ||
63160a43 | 1881 | extern const char *ep_parse_optional_if_clause (const char **arg); |
916703c0 | 1882 | |
f303dbd6 PA |
1883 | /* Print the "Thread ID hit" part of "Thread ID hit Breakpoint N" to |
1884 | UIOUT iff debugging multiple threads. */ | |
1885 | extern void maybe_print_thread_hit_breakpoint (struct ui_out *uiout); | |
1886 | ||
65630365 PA |
1887 | /* Print the specified breakpoint. */ |
1888 | extern void print_breakpoint (breakpoint *bp); | |
1889 | ||
8588b356 SM |
1890 | /* Command element for the 'commands' command. */ |
1891 | extern cmd_list_element *commands_cmd_element; | |
1892 | ||
13674803 SM |
1893 | /* Whether to use the fixed output when printing information about a |
1894 | multi-location breakpoint (see PR 9659). */ | |
1895 | ||
1896 | extern bool fix_multi_location_breakpoint_output_globally; | |
1897 | ||
9db0d853 SM |
1898 | /* Whether to use the fixed output when printing information about |
1899 | commands attached to a breakpoint. */ | |
1900 | ||
1901 | extern bool fix_breakpoint_script_output_globally; | |
1902 | ||
30056ea0 AB |
1903 | /* Deal with "catch catch", "catch throw", and "catch rethrow" commands and |
1904 | the MI equivalents. Sets up to catch events of type EX_EVENT. When | |
1905 | TEMPFLAG is true only the next matching event is caught after which the | |
1906 | catch-point is deleted. If REGEX is not NULL then only exceptions whose | |
1907 | type name matches REGEX will trigger the event. */ | |
1908 | ||
1909 | extern void catch_exception_event (enum exception_event_kind ex_event, | |
1910 | const char *regex, bool tempflag, | |
1911 | int from_tty); | |
1912 | ||
2f9ee862 TT |
1913 | /* A helper function that prints a shared library stopped event. |
1914 | IS_CATCHPOINT is true if the event is due to a "catch load" | |
1915 | catchpoint, false otherwise. */ | |
1916 | ||
4e9e993a | 1917 | extern void print_solib_event (bool is_catchpoint); |
2f9ee862 | 1918 | |
bd21b6c9 PA |
1919 | /* Print a message describing any user-breakpoints set at PC. This |
1920 | concerns with logical breakpoints, so we match program spaces, not | |
1921 | address spaces. */ | |
1922 | ||
1923 | extern void describe_other_breakpoints (struct gdbarch *, | |
1924 | struct program_space *, CORE_ADDR, | |
1925 | struct obj_section *, int); | |
1926 | ||
e5213e2c SF |
1927 | /* Enable or disable a breakpoint location LOC. ENABLE |
1928 | specifies whether to enable or disable. */ | |
1929 | ||
1930 | extern void enable_disable_bp_location (bp_location *loc, bool enable); | |
1931 | ||
c906108c | 1932 | #endif /* !defined (BREAKPOINT_H) */ |