File: | build/llvm-toolchain-snapshot-15~++20220420111733+e13d2efed663/lldb/source/Breakpoint/Breakpoint.cpp |
Warning: | line 197, column 3 Value stored to 'success' is never read |
Press '?' to see keyboard shortcuts
Keyboard shortcuts:
1 | //===-- Breakpoint.cpp ----------------------------------------------------===// |
2 | // |
3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
4 | // See https://llvm.org/LICENSE.txt for license information. |
5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
6 | // |
7 | //===----------------------------------------------------------------------===// |
8 | |
9 | #include "llvm/Support/Casting.h" |
10 | |
11 | #include "lldb/Breakpoint/Breakpoint.h" |
12 | #include "lldb/Breakpoint/BreakpointLocation.h" |
13 | #include "lldb/Breakpoint/BreakpointLocationCollection.h" |
14 | #include "lldb/Breakpoint/BreakpointPrecondition.h" |
15 | #include "lldb/Breakpoint/BreakpointResolver.h" |
16 | #include "lldb/Breakpoint/BreakpointResolverFileLine.h" |
17 | #include "lldb/Core/Address.h" |
18 | #include "lldb/Core/Module.h" |
19 | #include "lldb/Core/ModuleList.h" |
20 | #include "lldb/Core/SearchFilter.h" |
21 | #include "lldb/Core/Section.h" |
22 | #include "lldb/Symbol/CompileUnit.h" |
23 | #include "lldb/Symbol/Function.h" |
24 | #include "lldb/Symbol/Symbol.h" |
25 | #include "lldb/Symbol/SymbolContext.h" |
26 | #include "lldb/Target/SectionLoadList.h" |
27 | #include "lldb/Target/Target.h" |
28 | #include "lldb/Target/ThreadSpec.h" |
29 | #include "lldb/Utility/LLDBLog.h" |
30 | #include "lldb/Utility/Log.h" |
31 | #include "lldb/Utility/Stream.h" |
32 | #include "lldb/Utility/StreamString.h" |
33 | |
34 | #include <memory> |
35 | |
36 | using namespace lldb; |
37 | using namespace lldb_private; |
38 | using namespace llvm; |
39 | |
40 | ConstString Breakpoint::GetEventIdentifier() { |
41 | static ConstString g_identifier("event-identifier.breakpoint.changed"); |
42 | return g_identifier; |
43 | } |
44 | |
45 | const char *Breakpoint::g_option_names[static_cast<uint32_t>( |
46 | Breakpoint::OptionNames::LastOptionName)]{"Names", "Hardware"}; |
47 | |
48 | // Breakpoint constructor |
49 | Breakpoint::Breakpoint(Target &target, SearchFilterSP &filter_sp, |
50 | BreakpointResolverSP &resolver_sp, bool hardware, |
51 | bool resolve_indirect_symbols) |
52 | : m_being_created(true), m_hardware(hardware), m_target(target), |
53 | m_filter_sp(filter_sp), m_resolver_sp(resolver_sp), m_options(true), |
54 | m_locations(*this), m_resolve_indirect_symbols(resolve_indirect_symbols), |
55 | m_hit_counter() { |
56 | m_being_created = false; |
57 | } |
58 | |
59 | Breakpoint::Breakpoint(Target &new_target, const Breakpoint &source_bp) |
60 | : m_being_created(true), m_hardware(source_bp.m_hardware), |
61 | m_target(new_target), m_name_list(source_bp.m_name_list), |
62 | m_options(source_bp.m_options), m_locations(*this), |
63 | m_resolve_indirect_symbols(source_bp.m_resolve_indirect_symbols), |
64 | m_hit_counter() {} |
65 | |
66 | // Destructor |
67 | Breakpoint::~Breakpoint() = default; |
68 | |
69 | BreakpointSP Breakpoint::CopyFromBreakpoint(TargetSP new_target, |
70 | const Breakpoint& bp_to_copy_from) { |
71 | if (!new_target) |
72 | return BreakpointSP(); |
73 | |
74 | BreakpointSP bp(new Breakpoint(*new_target, bp_to_copy_from)); |
75 | // Now go through and copy the filter & resolver: |
76 | bp->m_resolver_sp = bp_to_copy_from.m_resolver_sp->CopyForBreakpoint(bp); |
77 | bp->m_filter_sp = bp_to_copy_from.m_filter_sp->CreateCopy(new_target); |
78 | return bp; |
79 | } |
80 | |
81 | // Serialization |
82 | StructuredData::ObjectSP Breakpoint::SerializeToStructuredData() { |
83 | // Serialize the resolver: |
84 | StructuredData::DictionarySP breakpoint_dict_sp( |
85 | new StructuredData::Dictionary()); |
86 | StructuredData::DictionarySP breakpoint_contents_sp( |
87 | new StructuredData::Dictionary()); |
88 | |
89 | if (!m_name_list.empty()) { |
90 | StructuredData::ArraySP names_array_sp(new StructuredData::Array()); |
91 | for (auto name : m_name_list) { |
92 | names_array_sp->AddItem( |
93 | StructuredData::StringSP(new StructuredData::String(name))); |
94 | } |
95 | breakpoint_contents_sp->AddItem(Breakpoint::GetKey(OptionNames::Names), |
96 | names_array_sp); |
97 | } |
98 | |
99 | breakpoint_contents_sp->AddBooleanItem( |
100 | Breakpoint::GetKey(OptionNames::Hardware), m_hardware); |
101 | |
102 | StructuredData::ObjectSP resolver_dict_sp( |
103 | m_resolver_sp->SerializeToStructuredData()); |
104 | if (!resolver_dict_sp) |
105 | return StructuredData::ObjectSP(); |
106 | |
107 | breakpoint_contents_sp->AddItem(BreakpointResolver::GetSerializationKey(), |
108 | resolver_dict_sp); |
109 | |
110 | StructuredData::ObjectSP filter_dict_sp( |
111 | m_filter_sp->SerializeToStructuredData()); |
112 | if (!filter_dict_sp) |
113 | return StructuredData::ObjectSP(); |
114 | |
115 | breakpoint_contents_sp->AddItem(SearchFilter::GetSerializationKey(), |
116 | filter_dict_sp); |
117 | |
118 | StructuredData::ObjectSP options_dict_sp( |
119 | m_options.SerializeToStructuredData()); |
120 | if (!options_dict_sp) |
121 | return StructuredData::ObjectSP(); |
122 | |
123 | breakpoint_contents_sp->AddItem(BreakpointOptions::GetSerializationKey(), |
124 | options_dict_sp); |
125 | |
126 | breakpoint_dict_sp->AddItem(GetSerializationKey(), breakpoint_contents_sp); |
127 | return breakpoint_dict_sp; |
128 | } |
129 | |
130 | lldb::BreakpointSP Breakpoint::CreateFromStructuredData( |
131 | TargetSP target_sp, StructuredData::ObjectSP &object_data, Status &error) { |
132 | BreakpointSP result_sp; |
133 | if (!target_sp) |
134 | return result_sp; |
135 | |
136 | StructuredData::Dictionary *breakpoint_dict = object_data->GetAsDictionary(); |
137 | |
138 | if (!breakpoint_dict || !breakpoint_dict->IsValid()) { |
139 | error.SetErrorString("Can't deserialize from an invalid data object."); |
140 | return result_sp; |
141 | } |
142 | |
143 | StructuredData::Dictionary *resolver_dict; |
144 | bool success = breakpoint_dict->GetValueForKeyAsDictionary( |
145 | BreakpointResolver::GetSerializationKey(), resolver_dict); |
146 | if (!success) { |
147 | error.SetErrorString("Breakpoint data missing toplevel resolver key"); |
148 | return result_sp; |
149 | } |
150 | |
151 | Status create_error; |
152 | BreakpointResolverSP resolver_sp = |
153 | BreakpointResolver::CreateFromStructuredData(*resolver_dict, |
154 | create_error); |
155 | if (create_error.Fail()) { |
156 | error.SetErrorStringWithFormat( |
157 | "Error creating breakpoint resolver from data: %s.", |
158 | create_error.AsCString()); |
159 | return result_sp; |
160 | } |
161 | |
162 | StructuredData::Dictionary *filter_dict; |
163 | success = breakpoint_dict->GetValueForKeyAsDictionary( |
164 | SearchFilter::GetSerializationKey(), filter_dict); |
165 | SearchFilterSP filter_sp; |
166 | if (!success) |
167 | filter_sp = |
168 | std::make_shared<SearchFilterForUnconstrainedSearches>(target_sp); |
169 | else { |
170 | filter_sp = SearchFilter::CreateFromStructuredData(target_sp, *filter_dict, |
171 | create_error); |
172 | if (create_error.Fail()) { |
173 | error.SetErrorStringWithFormat( |
174 | "Error creating breakpoint filter from data: %s.", |
175 | create_error.AsCString()); |
176 | return result_sp; |
177 | } |
178 | } |
179 | |
180 | std::unique_ptr<BreakpointOptions> options_up; |
181 | StructuredData::Dictionary *options_dict; |
182 | Target& target = *target_sp; |
183 | success = breakpoint_dict->GetValueForKeyAsDictionary( |
184 | BreakpointOptions::GetSerializationKey(), options_dict); |
185 | if (success) { |
186 | options_up = BreakpointOptions::CreateFromStructuredData( |
187 | target, *options_dict, create_error); |
188 | if (create_error.Fail()) { |
189 | error.SetErrorStringWithFormat( |
190 | "Error creating breakpoint options from data: %s.", |
191 | create_error.AsCString()); |
192 | return result_sp; |
193 | } |
194 | } |
195 | |
196 | bool hardware = false; |
197 | success = breakpoint_dict->GetValueForKeyAsBoolean( |
Value stored to 'success' is never read | |
198 | Breakpoint::GetKey(OptionNames::Hardware), hardware); |
199 | |
200 | result_sp = target.CreateBreakpoint(filter_sp, resolver_sp, false, |
201 | hardware, true); |
202 | |
203 | if (result_sp && options_up) { |
204 | result_sp->m_options = *options_up; |
205 | } |
206 | |
207 | StructuredData::Array *names_array; |
208 | success = breakpoint_dict->GetValueForKeyAsArray( |
209 | Breakpoint::GetKey(OptionNames::Names), names_array); |
210 | if (success && names_array) { |
211 | size_t num_names = names_array->GetSize(); |
212 | for (size_t i = 0; i < num_names; i++) { |
213 | llvm::StringRef name; |
214 | Status error; |
215 | success = names_array->GetItemAtIndexAsString(i, name); |
216 | target.AddNameToBreakpoint(result_sp, name.str().c_str(), error); |
217 | } |
218 | } |
219 | |
220 | return result_sp; |
221 | } |
222 | |
223 | bool Breakpoint::SerializedBreakpointMatchesNames( |
224 | StructuredData::ObjectSP &bkpt_object_sp, std::vector<std::string> &names) { |
225 | if (!bkpt_object_sp) |
226 | return false; |
227 | |
228 | StructuredData::Dictionary *bkpt_dict = bkpt_object_sp->GetAsDictionary(); |
229 | if (!bkpt_dict) |
230 | return false; |
231 | |
232 | if (names.empty()) |
233 | return true; |
234 | |
235 | StructuredData::Array *names_array; |
236 | |
237 | bool success = |
238 | bkpt_dict->GetValueForKeyAsArray(GetKey(OptionNames::Names), names_array); |
239 | // If there are no names, it can't match these names; |
240 | if (!success) |
241 | return false; |
242 | |
243 | size_t num_names = names_array->GetSize(); |
244 | |
245 | for (size_t i = 0; i < num_names; i++) { |
246 | llvm::StringRef name; |
247 | if (names_array->GetItemAtIndexAsString(i, name)) { |
248 | if (llvm::is_contained(names, name)) |
249 | return true; |
250 | } |
251 | } |
252 | return false; |
253 | } |
254 | |
255 | const lldb::TargetSP Breakpoint::GetTargetSP() { |
256 | return m_target.shared_from_this(); |
257 | } |
258 | |
259 | bool Breakpoint::IsInternal() const { return LLDB_BREAK_ID_IS_INTERNAL(m_bid)((m_bid) < 0); } |
260 | |
261 | BreakpointLocationSP Breakpoint::AddLocation(const Address &addr, |
262 | bool *new_location) { |
263 | return m_locations.AddLocation(addr, m_resolve_indirect_symbols, |
264 | new_location); |
265 | } |
266 | |
267 | BreakpointLocationSP Breakpoint::FindLocationByAddress(const Address &addr) { |
268 | return m_locations.FindByAddress(addr); |
269 | } |
270 | |
271 | break_id_t Breakpoint::FindLocationIDByAddress(const Address &addr) { |
272 | return m_locations.FindIDByAddress(addr); |
273 | } |
274 | |
275 | BreakpointLocationSP Breakpoint::FindLocationByID(break_id_t bp_loc_id) { |
276 | return m_locations.FindByID(bp_loc_id); |
277 | } |
278 | |
279 | BreakpointLocationSP Breakpoint::GetLocationAtIndex(size_t index) { |
280 | return m_locations.GetByIndex(index); |
281 | } |
282 | |
283 | void Breakpoint::RemoveInvalidLocations(const ArchSpec &arch) { |
284 | m_locations.RemoveInvalidLocations(arch); |
285 | } |
286 | |
287 | // For each of the overall options we need to decide how they propagate to the |
288 | // location options. This will determine the precedence of options on the |
289 | // breakpoint vs. its locations. |
290 | |
291 | // Disable at the breakpoint level should override the location settings. That |
292 | // way you can conveniently turn off a whole breakpoint without messing up the |
293 | // individual settings. |
294 | |
295 | void Breakpoint::SetEnabled(bool enable) { |
296 | if (enable == m_options.IsEnabled()) |
297 | return; |
298 | |
299 | m_options.SetEnabled(enable); |
300 | if (enable) |
301 | m_locations.ResolveAllBreakpointSites(); |
302 | else |
303 | m_locations.ClearAllBreakpointSites(); |
304 | |
305 | SendBreakpointChangedEvent(enable ? eBreakpointEventTypeEnabled |
306 | : eBreakpointEventTypeDisabled); |
307 | } |
308 | |
309 | bool Breakpoint::IsEnabled() { return m_options.IsEnabled(); } |
310 | |
311 | void Breakpoint::SetIgnoreCount(uint32_t n) { |
312 | if (m_options.GetIgnoreCount() == n) |
313 | return; |
314 | |
315 | m_options.SetIgnoreCount(n); |
316 | SendBreakpointChangedEvent(eBreakpointEventTypeIgnoreChanged); |
317 | } |
318 | |
319 | void Breakpoint::DecrementIgnoreCount() { |
320 | uint32_t ignore = m_options.GetIgnoreCount(); |
321 | if (ignore != 0) |
322 | m_options.SetIgnoreCount(ignore - 1); |
323 | } |
324 | |
325 | uint32_t Breakpoint::GetIgnoreCount() const { |
326 | return m_options.GetIgnoreCount(); |
327 | } |
328 | |
329 | uint32_t Breakpoint::GetHitCount() const { return m_hit_counter.GetValue(); } |
330 | |
331 | bool Breakpoint::IsOneShot() const { return m_options.IsOneShot(); } |
332 | |
333 | void Breakpoint::SetOneShot(bool one_shot) { m_options.SetOneShot(one_shot); } |
334 | |
335 | bool Breakpoint::IsAutoContinue() const { return m_options.IsAutoContinue(); } |
336 | |
337 | void Breakpoint::SetAutoContinue(bool auto_continue) { |
338 | m_options.SetAutoContinue(auto_continue); |
339 | } |
340 | |
341 | void Breakpoint::SetThreadID(lldb::tid_t thread_id) { |
342 | if (m_options.GetThreadSpec()->GetTID() == thread_id) |
343 | return; |
344 | |
345 | m_options.GetThreadSpec()->SetTID(thread_id); |
346 | SendBreakpointChangedEvent(eBreakpointEventTypeThreadChanged); |
347 | } |
348 | |
349 | lldb::tid_t Breakpoint::GetThreadID() const { |
350 | if (m_options.GetThreadSpecNoCreate() == nullptr) |
351 | return LLDB_INVALID_THREAD_ID0; |
352 | else |
353 | return m_options.GetThreadSpecNoCreate()->GetTID(); |
354 | } |
355 | |
356 | void Breakpoint::SetThreadIndex(uint32_t index) { |
357 | if (m_options.GetThreadSpec()->GetIndex() == index) |
358 | return; |
359 | |
360 | m_options.GetThreadSpec()->SetIndex(index); |
361 | SendBreakpointChangedEvent(eBreakpointEventTypeThreadChanged); |
362 | } |
363 | |
364 | uint32_t Breakpoint::GetThreadIndex() const { |
365 | if (m_options.GetThreadSpecNoCreate() == nullptr) |
366 | return 0; |
367 | else |
368 | return m_options.GetThreadSpecNoCreate()->GetIndex(); |
369 | } |
370 | |
371 | void Breakpoint::SetThreadName(const char *thread_name) { |
372 | if (m_options.GetThreadSpec()->GetName() != nullptr && |
373 | ::strcmp(m_options.GetThreadSpec()->GetName(), thread_name) == 0) |
374 | return; |
375 | |
376 | m_options.GetThreadSpec()->SetName(thread_name); |
377 | SendBreakpointChangedEvent(eBreakpointEventTypeThreadChanged); |
378 | } |
379 | |
380 | const char *Breakpoint::GetThreadName() const { |
381 | if (m_options.GetThreadSpecNoCreate() == nullptr) |
382 | return nullptr; |
383 | else |
384 | return m_options.GetThreadSpecNoCreate()->GetName(); |
385 | } |
386 | |
387 | void Breakpoint::SetQueueName(const char *queue_name) { |
388 | if (m_options.GetThreadSpec()->GetQueueName() != nullptr && |
389 | ::strcmp(m_options.GetThreadSpec()->GetQueueName(), queue_name) == 0) |
390 | return; |
391 | |
392 | m_options.GetThreadSpec()->SetQueueName(queue_name); |
393 | SendBreakpointChangedEvent(eBreakpointEventTypeThreadChanged); |
394 | } |
395 | |
396 | const char *Breakpoint::GetQueueName() const { |
397 | if (m_options.GetThreadSpecNoCreate() == nullptr) |
398 | return nullptr; |
399 | else |
400 | return m_options.GetThreadSpecNoCreate()->GetQueueName(); |
401 | } |
402 | |
403 | void Breakpoint::SetCondition(const char *condition) { |
404 | m_options.SetCondition(condition); |
405 | SendBreakpointChangedEvent(eBreakpointEventTypeConditionChanged); |
406 | } |
407 | |
408 | const char *Breakpoint::GetConditionText() const { |
409 | return m_options.GetConditionText(); |
410 | } |
411 | |
412 | // This function is used when "baton" doesn't need to be freed |
413 | void Breakpoint::SetCallback(BreakpointHitCallback callback, void *baton, |
414 | bool is_synchronous) { |
415 | // The default "Baton" class will keep a copy of "baton" and won't free or |
416 | // delete it when it goes goes out of scope. |
417 | m_options.SetCallback(callback, std::make_shared<UntypedBaton>(baton), |
418 | is_synchronous); |
419 | |
420 | SendBreakpointChangedEvent(eBreakpointEventTypeCommandChanged); |
421 | } |
422 | |
423 | // This function is used when a baton needs to be freed and therefore is |
424 | // contained in a "Baton" subclass. |
425 | void Breakpoint::SetCallback(BreakpointHitCallback callback, |
426 | const BatonSP &callback_baton_sp, |
427 | bool is_synchronous) { |
428 | m_options.SetCallback(callback, callback_baton_sp, is_synchronous); |
429 | } |
430 | |
431 | void Breakpoint::ClearCallback() { m_options.ClearCallback(); } |
432 | |
433 | bool Breakpoint::InvokeCallback(StoppointCallbackContext *context, |
434 | break_id_t bp_loc_id) { |
435 | return m_options.InvokeCallback(context, GetID(), bp_loc_id); |
436 | } |
437 | |
438 | BreakpointOptions &Breakpoint::GetOptions() { return m_options; } |
439 | |
440 | const BreakpointOptions &Breakpoint::GetOptions() const { return m_options; } |
441 | |
442 | void Breakpoint::ResolveBreakpoint() { |
443 | if (m_resolver_sp) { |
444 | ElapsedTime elapsed(m_resolve_time); |
445 | m_resolver_sp->ResolveBreakpoint(*m_filter_sp); |
446 | } |
447 | } |
448 | |
449 | void Breakpoint::ResolveBreakpointInModules( |
450 | ModuleList &module_list, BreakpointLocationCollection &new_locations) { |
451 | ElapsedTime elapsed(m_resolve_time); |
452 | m_locations.StartRecordingNewLocations(new_locations); |
453 | |
454 | m_resolver_sp->ResolveBreakpointInModules(*m_filter_sp, module_list); |
455 | |
456 | m_locations.StopRecordingNewLocations(); |
457 | } |
458 | |
459 | void Breakpoint::ResolveBreakpointInModules(ModuleList &module_list, |
460 | bool send_event) { |
461 | if (m_resolver_sp) { |
462 | // If this is not an internal breakpoint, set up to record the new |
463 | // locations, then dispatch an event with the new locations. |
464 | if (!IsInternal() && send_event) { |
465 | BreakpointEventData *new_locations_event = new BreakpointEventData( |
466 | eBreakpointEventTypeLocationsAdded, shared_from_this()); |
467 | |
468 | ResolveBreakpointInModules( |
469 | module_list, new_locations_event->GetBreakpointLocationCollection()); |
470 | |
471 | if (new_locations_event->GetBreakpointLocationCollection().GetSize() != |
472 | 0) { |
473 | SendBreakpointChangedEvent(new_locations_event); |
474 | } else |
475 | delete new_locations_event; |
476 | } else { |
477 | ElapsedTime elapsed(m_resolve_time); |
478 | m_resolver_sp->ResolveBreakpointInModules(*m_filter_sp, module_list); |
479 | } |
480 | } |
481 | } |
482 | |
483 | void Breakpoint::ClearAllBreakpointSites() { |
484 | m_locations.ClearAllBreakpointSites(); |
485 | } |
486 | |
487 | // ModulesChanged: Pass in a list of new modules, and |
488 | |
489 | void Breakpoint::ModulesChanged(ModuleList &module_list, bool load, |
490 | bool delete_locations) { |
491 | Log *log = GetLog(LLDBLog::Breakpoints); |
492 | LLDB_LOGF(log,do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Printf("Breakpoint::ModulesChanged: num_modules: %zu load: %i " "delete_locations: %i\n", module_list.GetSize(), load, delete_locations ); } while (0) |
493 | "Breakpoint::ModulesChanged: num_modules: %zu load: %i "do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Printf("Breakpoint::ModulesChanged: num_modules: %zu load: %i " "delete_locations: %i\n", module_list.GetSize(), load, delete_locations ); } while (0) |
494 | "delete_locations: %i\n",do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Printf("Breakpoint::ModulesChanged: num_modules: %zu load: %i " "delete_locations: %i\n", module_list.GetSize(), load, delete_locations ); } while (0) |
495 | module_list.GetSize(), load, delete_locations)do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Printf("Breakpoint::ModulesChanged: num_modules: %zu load: %i " "delete_locations: %i\n", module_list.GetSize(), load, delete_locations ); } while (0); |
496 | |
497 | if (load) { |
498 | // The logic for handling new modules is: |
499 | // 1) If the filter rejects this module, then skip it. 2) Run through the |
500 | // current location list and if there are any locations |
501 | // for that module, we mark the module as "seen" and we don't try to |
502 | // re-resolve |
503 | // breakpoint locations for that module. |
504 | // However, we do add breakpoint sites to these locations if needed. |
505 | // 3) If we don't see this module in our breakpoint location list, call |
506 | // ResolveInModules. |
507 | |
508 | ModuleList new_modules; // We'll stuff the "unseen" modules in this list, |
509 | // and then resolve |
510 | // them after the locations pass. Have to do it this way because resolving |
511 | // breakpoints will add new locations potentially. |
512 | |
513 | for (ModuleSP module_sp : module_list.Modules()) { |
514 | bool seen = false; |
515 | if (!m_filter_sp->ModulePasses(module_sp)) |
516 | continue; |
517 | |
518 | BreakpointLocationCollection locations_with_no_section; |
519 | for (BreakpointLocationSP break_loc_sp : |
520 | m_locations.BreakpointLocations()) { |
521 | |
522 | // If the section for this location was deleted, that means it's Module |
523 | // has gone away but somebody forgot to tell us. Let's clean it up |
524 | // here. |
525 | Address section_addr(break_loc_sp->GetAddress()); |
526 | if (section_addr.SectionWasDeleted()) { |
527 | locations_with_no_section.Add(break_loc_sp); |
528 | continue; |
529 | } |
530 | |
531 | if (!break_loc_sp->IsEnabled()) |
532 | continue; |
533 | |
534 | SectionSP section_sp(section_addr.GetSection()); |
535 | |
536 | // If we don't have a Section, that means this location is a raw |
537 | // address that we haven't resolved to a section yet. So we'll have to |
538 | // look in all the new modules to resolve this location. Otherwise, if |
539 | // it was set in this module, re-resolve it here. |
540 | if (section_sp && section_sp->GetModule() == module_sp) { |
541 | if (!seen) |
542 | seen = true; |
543 | |
544 | if (!break_loc_sp->ResolveBreakpointSite()) { |
545 | LLDB_LOGF(log,do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Printf("Warning: could not set breakpoint site for " "breakpoint location %d of breakpoint %d.\n", break_loc_sp-> GetID(), GetID()); } while (0) |
546 | "Warning: could not set breakpoint site for "do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Printf("Warning: could not set breakpoint site for " "breakpoint location %d of breakpoint %d.\n", break_loc_sp-> GetID(), GetID()); } while (0) |
547 | "breakpoint location %d of breakpoint %d.\n",do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Printf("Warning: could not set breakpoint site for " "breakpoint location %d of breakpoint %d.\n", break_loc_sp-> GetID(), GetID()); } while (0) |
548 | break_loc_sp->GetID(), GetID())do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Printf("Warning: could not set breakpoint site for " "breakpoint location %d of breakpoint %d.\n", break_loc_sp-> GetID(), GetID()); } while (0); |
549 | } |
550 | } |
551 | } |
552 | |
553 | size_t num_to_delete = locations_with_no_section.GetSize(); |
554 | |
555 | for (size_t i = 0; i < num_to_delete; i++) |
556 | m_locations.RemoveLocation(locations_with_no_section.GetByIndex(i)); |
557 | |
558 | if (!seen) |
559 | new_modules.AppendIfNeeded(module_sp); |
560 | } |
561 | |
562 | if (new_modules.GetSize() > 0) { |
563 | ResolveBreakpointInModules(new_modules); |
564 | } |
565 | } else { |
566 | // Go through the currently set locations and if any have breakpoints in |
567 | // the module list, then remove their breakpoint sites, and their locations |
568 | // if asked to. |
569 | |
570 | BreakpointEventData *removed_locations_event; |
571 | if (!IsInternal()) |
572 | removed_locations_event = new BreakpointEventData( |
573 | eBreakpointEventTypeLocationsRemoved, shared_from_this()); |
574 | else |
575 | removed_locations_event = nullptr; |
576 | |
577 | for (ModuleSP module_sp : module_list.Modules()) { |
578 | if (m_filter_sp->ModulePasses(module_sp)) { |
579 | size_t loc_idx = 0; |
580 | size_t num_locations = m_locations.GetSize(); |
581 | BreakpointLocationCollection locations_to_remove; |
582 | for (loc_idx = 0; loc_idx < num_locations; loc_idx++) { |
583 | BreakpointLocationSP break_loc_sp(m_locations.GetByIndex(loc_idx)); |
584 | SectionSP section_sp(break_loc_sp->GetAddress().GetSection()); |
585 | if (section_sp && section_sp->GetModule() == module_sp) { |
586 | // Remove this breakpoint since the shared library is unloaded, but |
587 | // keep the breakpoint location around so we always get complete |
588 | // hit count and breakpoint lifetime info |
589 | break_loc_sp->ClearBreakpointSite(); |
590 | if (removed_locations_event) { |
591 | removed_locations_event->GetBreakpointLocationCollection().Add( |
592 | break_loc_sp); |
593 | } |
594 | if (delete_locations) |
595 | locations_to_remove.Add(break_loc_sp); |
596 | } |
597 | } |
598 | |
599 | if (delete_locations) { |
600 | size_t num_locations_to_remove = locations_to_remove.GetSize(); |
601 | for (loc_idx = 0; loc_idx < num_locations_to_remove; loc_idx++) |
602 | m_locations.RemoveLocation(locations_to_remove.GetByIndex(loc_idx)); |
603 | } |
604 | } |
605 | } |
606 | SendBreakpointChangedEvent(removed_locations_event); |
607 | } |
608 | } |
609 | |
610 | static bool SymbolContextsMightBeEquivalent(SymbolContext &old_sc, |
611 | SymbolContext &new_sc) { |
612 | bool equivalent_scs = false; |
613 | |
614 | if (old_sc.module_sp.get() == new_sc.module_sp.get()) { |
615 | // If these come from the same module, we can directly compare the |
616 | // pointers: |
617 | if (old_sc.comp_unit && new_sc.comp_unit && |
618 | (old_sc.comp_unit == new_sc.comp_unit)) { |
619 | if (old_sc.function && new_sc.function && |
620 | (old_sc.function == new_sc.function)) { |
621 | equivalent_scs = true; |
622 | } |
623 | } else if (old_sc.symbol && new_sc.symbol && |
624 | (old_sc.symbol == new_sc.symbol)) { |
625 | equivalent_scs = true; |
626 | } |
627 | } else { |
628 | // Otherwise we will compare by name... |
629 | if (old_sc.comp_unit && new_sc.comp_unit) { |
630 | if (old_sc.comp_unit->GetPrimaryFile() == |
631 | new_sc.comp_unit->GetPrimaryFile()) { |
632 | // Now check the functions: |
633 | if (old_sc.function && new_sc.function && |
634 | (old_sc.function->GetName() == new_sc.function->GetName())) { |
635 | equivalent_scs = true; |
636 | } |
637 | } |
638 | } else if (old_sc.symbol && new_sc.symbol) { |
639 | if (Mangled::Compare(old_sc.symbol->GetMangled(), |
640 | new_sc.symbol->GetMangled()) == 0) { |
641 | equivalent_scs = true; |
642 | } |
643 | } |
644 | } |
645 | return equivalent_scs; |
646 | } |
647 | |
648 | void Breakpoint::ModuleReplaced(ModuleSP old_module_sp, |
649 | ModuleSP new_module_sp) { |
650 | Log *log = GetLog(LLDBLog::Breakpoints); |
651 | LLDB_LOGF(log, "Breakpoint::ModulesReplaced for %s\n",do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Printf("Breakpoint::ModulesReplaced for %s\n" , old_module_sp->GetSpecificationDescription().c_str()); } while (0) |
652 | old_module_sp->GetSpecificationDescription().c_str())do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Printf("Breakpoint::ModulesReplaced for %s\n" , old_module_sp->GetSpecificationDescription().c_str()); } while (0); |
653 | // First find all the locations that are in the old module |
654 | |
655 | BreakpointLocationCollection old_break_locs; |
656 | for (BreakpointLocationSP break_loc_sp : m_locations.BreakpointLocations()) { |
657 | SectionSP section_sp = break_loc_sp->GetAddress().GetSection(); |
658 | if (section_sp && section_sp->GetModule() == old_module_sp) { |
659 | old_break_locs.Add(break_loc_sp); |
660 | } |
661 | } |
662 | |
663 | size_t num_old_locations = old_break_locs.GetSize(); |
664 | |
665 | if (num_old_locations == 0) { |
666 | // There were no locations in the old module, so we just need to check if |
667 | // there were any in the new module. |
668 | ModuleList temp_list; |
669 | temp_list.Append(new_module_sp); |
670 | ResolveBreakpointInModules(temp_list); |
671 | } else { |
672 | // First search the new module for locations. Then compare this with the |
673 | // old list, copy over locations that "look the same" Then delete the old |
674 | // locations. Finally remember to post the creation event. |
675 | // |
676 | // Two locations are the same if they have the same comp unit & function |
677 | // (by name) and there are the same number of locations in the old function |
678 | // as in the new one. |
679 | |
680 | ModuleList temp_list; |
681 | temp_list.Append(new_module_sp); |
682 | BreakpointLocationCollection new_break_locs; |
683 | ResolveBreakpointInModules(temp_list, new_break_locs); |
684 | BreakpointLocationCollection locations_to_remove; |
685 | BreakpointLocationCollection locations_to_announce; |
686 | |
687 | size_t num_new_locations = new_break_locs.GetSize(); |
688 | |
689 | if (num_new_locations > 0) { |
690 | // Break out the case of one location -> one location since that's the |
691 | // most common one, and there's no need to build up the structures needed |
692 | // for the merge in that case. |
693 | if (num_new_locations == 1 && num_old_locations == 1) { |
694 | bool equivalent_locations = false; |
695 | SymbolContext old_sc, new_sc; |
696 | // The only way the old and new location can be equivalent is if they |
697 | // have the same amount of information: |
698 | BreakpointLocationSP old_loc_sp = old_break_locs.GetByIndex(0); |
699 | BreakpointLocationSP new_loc_sp = new_break_locs.GetByIndex(0); |
700 | |
701 | if (old_loc_sp->GetAddress().CalculateSymbolContext(&old_sc) == |
702 | new_loc_sp->GetAddress().CalculateSymbolContext(&new_sc)) { |
703 | equivalent_locations = |
704 | SymbolContextsMightBeEquivalent(old_sc, new_sc); |
705 | } |
706 | |
707 | if (equivalent_locations) { |
708 | m_locations.SwapLocation(old_loc_sp, new_loc_sp); |
709 | } else { |
710 | locations_to_remove.Add(old_loc_sp); |
711 | locations_to_announce.Add(new_loc_sp); |
712 | } |
713 | } else { |
714 | // We don't want to have to keep computing the SymbolContexts for these |
715 | // addresses over and over, so lets get them up front: |
716 | |
717 | typedef std::map<lldb::break_id_t, SymbolContext> IDToSCMap; |
718 | IDToSCMap old_sc_map; |
719 | for (size_t idx = 0; idx < num_old_locations; idx++) { |
720 | SymbolContext sc; |
721 | BreakpointLocationSP bp_loc_sp = old_break_locs.GetByIndex(idx); |
722 | lldb::break_id_t loc_id = bp_loc_sp->GetID(); |
723 | bp_loc_sp->GetAddress().CalculateSymbolContext(&old_sc_map[loc_id]); |
724 | } |
725 | |
726 | std::map<lldb::break_id_t, SymbolContext> new_sc_map; |
727 | for (size_t idx = 0; idx < num_new_locations; idx++) { |
728 | SymbolContext sc; |
729 | BreakpointLocationSP bp_loc_sp = new_break_locs.GetByIndex(idx); |
730 | lldb::break_id_t loc_id = bp_loc_sp->GetID(); |
731 | bp_loc_sp->GetAddress().CalculateSymbolContext(&new_sc_map[loc_id]); |
732 | } |
733 | // Take an element from the old Symbol Contexts |
734 | while (old_sc_map.size() > 0) { |
735 | lldb::break_id_t old_id = old_sc_map.begin()->first; |
736 | SymbolContext &old_sc = old_sc_map.begin()->second; |
737 | |
738 | // Count the number of entries equivalent to this SC for the old |
739 | // list: |
740 | std::vector<lldb::break_id_t> old_id_vec; |
741 | old_id_vec.push_back(old_id); |
742 | |
743 | IDToSCMap::iterator tmp_iter; |
744 | for (tmp_iter = ++old_sc_map.begin(); tmp_iter != old_sc_map.end(); |
745 | tmp_iter++) { |
746 | if (SymbolContextsMightBeEquivalent(old_sc, tmp_iter->second)) |
747 | old_id_vec.push_back(tmp_iter->first); |
748 | } |
749 | |
750 | // Now find all the equivalent locations in the new list. |
751 | std::vector<lldb::break_id_t> new_id_vec; |
752 | for (tmp_iter = new_sc_map.begin(); tmp_iter != new_sc_map.end(); |
753 | tmp_iter++) { |
754 | if (SymbolContextsMightBeEquivalent(old_sc, tmp_iter->second)) |
755 | new_id_vec.push_back(tmp_iter->first); |
756 | } |
757 | |
758 | // Alright, if we have the same number of potentially equivalent |
759 | // locations in the old and new modules, we'll just map them one to |
760 | // one in ascending ID order (assuming the resolver's order would |
761 | // match the equivalent ones. Otherwise, we'll dump all the old ones, |
762 | // and just take the new ones, erasing the elements from both maps as |
763 | // we go. |
764 | |
765 | if (old_id_vec.size() == new_id_vec.size()) { |
766 | llvm::sort(old_id_vec); |
767 | llvm::sort(new_id_vec); |
768 | size_t num_elements = old_id_vec.size(); |
769 | for (size_t idx = 0; idx < num_elements; idx++) { |
770 | BreakpointLocationSP old_loc_sp = |
771 | old_break_locs.FindByIDPair(GetID(), old_id_vec[idx]); |
772 | BreakpointLocationSP new_loc_sp = |
773 | new_break_locs.FindByIDPair(GetID(), new_id_vec[idx]); |
774 | m_locations.SwapLocation(old_loc_sp, new_loc_sp); |
775 | old_sc_map.erase(old_id_vec[idx]); |
776 | new_sc_map.erase(new_id_vec[idx]); |
777 | } |
778 | } else { |
779 | for (lldb::break_id_t old_id : old_id_vec) { |
780 | locations_to_remove.Add( |
781 | old_break_locs.FindByIDPair(GetID(), old_id)); |
782 | old_sc_map.erase(old_id); |
783 | } |
784 | for (lldb::break_id_t new_id : new_id_vec) { |
785 | locations_to_announce.Add( |
786 | new_break_locs.FindByIDPair(GetID(), new_id)); |
787 | new_sc_map.erase(new_id); |
788 | } |
789 | } |
790 | } |
791 | } |
792 | } |
793 | |
794 | // Now remove the remaining old locations, and cons up a removed locations |
795 | // event. Note, we don't put the new locations that were swapped with an |
796 | // old location on the locations_to_remove list, so we don't need to worry |
797 | // about telling the world about removing a location we didn't tell them |
798 | // about adding. |
799 | |
800 | BreakpointEventData *locations_event; |
801 | if (!IsInternal()) |
802 | locations_event = new BreakpointEventData( |
803 | eBreakpointEventTypeLocationsRemoved, shared_from_this()); |
804 | else |
805 | locations_event = nullptr; |
806 | |
807 | for (BreakpointLocationSP loc_sp : |
808 | locations_to_remove.BreakpointLocations()) { |
809 | m_locations.RemoveLocation(loc_sp); |
810 | if (locations_event) |
811 | locations_event->GetBreakpointLocationCollection().Add(loc_sp); |
812 | } |
813 | SendBreakpointChangedEvent(locations_event); |
814 | |
815 | // And announce the new ones. |
816 | |
817 | if (!IsInternal()) { |
818 | locations_event = new BreakpointEventData( |
819 | eBreakpointEventTypeLocationsAdded, shared_from_this()); |
820 | for (BreakpointLocationSP loc_sp : |
821 | locations_to_announce.BreakpointLocations()) |
822 | locations_event->GetBreakpointLocationCollection().Add(loc_sp); |
823 | |
824 | SendBreakpointChangedEvent(locations_event); |
825 | } |
826 | m_locations.Compact(); |
827 | } |
828 | } |
829 | |
830 | void Breakpoint::Dump(Stream *) {} |
831 | |
832 | size_t Breakpoint::GetNumResolvedLocations() const { |
833 | // Return the number of breakpoints that are actually resolved and set down |
834 | // in the inferior process. |
835 | return m_locations.GetNumResolvedLocations(); |
836 | } |
837 | |
838 | bool Breakpoint::HasResolvedLocations() const { |
839 | return GetNumResolvedLocations() > 0; |
840 | } |
841 | |
842 | size_t Breakpoint::GetNumLocations() const { return m_locations.GetSize(); } |
843 | |
844 | bool Breakpoint::AddName(llvm::StringRef new_name) { |
845 | m_name_list.insert(new_name.str().c_str()); |
846 | return true; |
847 | } |
848 | |
849 | void Breakpoint::GetDescription(Stream *s, lldb::DescriptionLevel level, |
850 | bool show_locations) { |
851 | assert(s != nullptr)(static_cast <bool> (s != nullptr) ? void (0) : __assert_fail ("s != nullptr", "lldb/source/Breakpoint/Breakpoint.cpp", 851 , __extension__ __PRETTY_FUNCTION__)); |
852 | |
853 | if (!m_kind_description.empty()) { |
854 | if (level == eDescriptionLevelBrief) { |
855 | s->PutCString(GetBreakpointKind()); |
856 | return; |
857 | } else |
858 | s->Printf("Kind: %s\n", GetBreakpointKind()); |
859 | } |
860 | |
861 | const size_t num_locations = GetNumLocations(); |
862 | const size_t num_resolved_locations = GetNumResolvedLocations(); |
863 | |
864 | // They just made the breakpoint, they don't need to be told HOW they made |
865 | // it... Also, we'll print the breakpoint number differently depending on |
866 | // whether there is 1 or more locations. |
867 | if (level != eDescriptionLevelInitial) { |
868 | s->Printf("%i: ", GetID()); |
869 | GetResolverDescription(s); |
870 | GetFilterDescription(s); |
871 | } |
872 | |
873 | switch (level) { |
874 | case lldb::eDescriptionLevelBrief: |
875 | case lldb::eDescriptionLevelFull: |
876 | if (num_locations > 0) { |
877 | s->Printf(", locations = %" PRIu64"l" "u", (uint64_t)num_locations); |
878 | if (num_resolved_locations > 0) |
879 | s->Printf(", resolved = %" PRIu64"l" "u" ", hit count = %d", |
880 | (uint64_t)num_resolved_locations, GetHitCount()); |
881 | } else { |
882 | // Don't print the pending notification for exception resolvers since we |
883 | // don't generally know how to set them until the target is run. |
884 | if (m_resolver_sp->getResolverID() != |
885 | BreakpointResolver::ExceptionResolver) |
886 | s->Printf(", locations = 0 (pending)"); |
887 | } |
888 | |
889 | m_options.GetDescription(s, level); |
890 | |
891 | if (m_precondition_sp) |
892 | m_precondition_sp->GetDescription(*s, level); |
893 | |
894 | if (level == lldb::eDescriptionLevelFull) { |
895 | if (!m_name_list.empty()) { |
896 | s->EOL(); |
897 | s->Indent(); |
898 | s->Printf("Names:"); |
899 | s->EOL(); |
900 | s->IndentMore(); |
901 | for (std::string name : m_name_list) { |
902 | s->Indent(); |
903 | s->Printf("%s\n", name.c_str()); |
904 | } |
905 | s->IndentLess(); |
906 | } |
907 | s->IndentLess(); |
908 | s->EOL(); |
909 | } |
910 | break; |
911 | |
912 | case lldb::eDescriptionLevelInitial: |
913 | s->Printf("Breakpoint %i: ", GetID()); |
914 | if (num_locations == 0) { |
915 | s->Printf("no locations (pending)."); |
916 | } else if (num_locations == 1 && !show_locations) { |
917 | // There is only one location, so we'll just print that location |
918 | // information. |
919 | GetLocationAtIndex(0)->GetDescription(s, level); |
920 | } else { |
921 | s->Printf("%" PRIu64"l" "u" " locations.", static_cast<uint64_t>(num_locations)); |
922 | } |
923 | s->EOL(); |
924 | break; |
925 | |
926 | case lldb::eDescriptionLevelVerbose: |
927 | // Verbose mode does a debug dump of the breakpoint |
928 | Dump(s); |
929 | s->EOL(); |
930 | // s->Indent(); |
931 | m_options.GetDescription(s, level); |
932 | break; |
933 | |
934 | default: |
935 | break; |
936 | } |
937 | |
938 | // The brief description is just the location name (1.2 or whatever). That's |
939 | // pointless to show in the breakpoint's description, so suppress it. |
940 | if (show_locations && level != lldb::eDescriptionLevelBrief) { |
941 | s->IndentMore(); |
942 | for (size_t i = 0; i < num_locations; ++i) { |
943 | BreakpointLocation *loc = GetLocationAtIndex(i).get(); |
944 | loc->GetDescription(s, level); |
945 | s->EOL(); |
946 | } |
947 | s->IndentLess(); |
948 | } |
949 | } |
950 | |
951 | void Breakpoint::GetResolverDescription(Stream *s) { |
952 | if (m_resolver_sp) |
953 | m_resolver_sp->GetDescription(s); |
954 | } |
955 | |
956 | bool Breakpoint::GetMatchingFileLine(ConstString filename, |
957 | uint32_t line_number, |
958 | BreakpointLocationCollection &loc_coll) { |
959 | // TODO: To be correct, this method needs to fill the breakpoint location |
960 | // collection |
961 | // with the location IDs which match the filename and line_number. |
962 | // |
963 | |
964 | if (m_resolver_sp) { |
965 | BreakpointResolverFileLine *resolverFileLine = |
966 | dyn_cast<BreakpointResolverFileLine>(m_resolver_sp.get()); |
967 | |
968 | // TODO: Handle SourceLocationSpec column information |
969 | if (resolverFileLine && |
970 | resolverFileLine->m_location_spec.GetFileSpec().GetFilename() == |
971 | filename && |
972 | resolverFileLine->m_location_spec.GetLine() == line_number) { |
973 | return true; |
974 | } |
975 | } |
976 | return false; |
977 | } |
978 | |
979 | void Breakpoint::GetFilterDescription(Stream *s) { |
980 | m_filter_sp->GetDescription(s); |
981 | } |
982 | |
983 | bool Breakpoint::EvaluatePrecondition(StoppointCallbackContext &context) { |
984 | if (!m_precondition_sp) |
985 | return true; |
986 | |
987 | return m_precondition_sp->EvaluatePrecondition(context); |
988 | } |
989 | |
990 | void Breakpoint::SendBreakpointChangedEvent( |
991 | lldb::BreakpointEventType eventKind) { |
992 | if (!m_being_created && !IsInternal() && |
993 | GetTarget().EventTypeHasListeners( |
994 | Target::eBroadcastBitBreakpointChanged)) { |
995 | BreakpointEventData *data = |
996 | new Breakpoint::BreakpointEventData(eventKind, shared_from_this()); |
997 | |
998 | GetTarget().BroadcastEvent(Target::eBroadcastBitBreakpointChanged, data); |
999 | } |
1000 | } |
1001 | |
1002 | void Breakpoint::SendBreakpointChangedEvent(BreakpointEventData *data) { |
1003 | if (data == nullptr) |
1004 | return; |
1005 | |
1006 | if (!m_being_created && !IsInternal() && |
1007 | GetTarget().EventTypeHasListeners(Target::eBroadcastBitBreakpointChanged)) |
1008 | GetTarget().BroadcastEvent(Target::eBroadcastBitBreakpointChanged, data); |
1009 | else |
1010 | delete data; |
1011 | } |
1012 | |
1013 | const char *Breakpoint::BreakpointEventTypeAsCString(BreakpointEventType type) { |
1014 | switch (type) { |
1015 | case eBreakpointEventTypeInvalidType: return "invalid"; |
1016 | case eBreakpointEventTypeAdded: return "breakpoint added"; |
1017 | case eBreakpointEventTypeRemoved: return "breakpoint removed"; |
1018 | case eBreakpointEventTypeLocationsAdded: return "locations added"; |
1019 | case eBreakpointEventTypeLocationsRemoved: return "locations removed"; |
1020 | case eBreakpointEventTypeLocationsResolved: return "locations resolved"; |
1021 | case eBreakpointEventTypeEnabled: return "breakpoint enabled"; |
1022 | case eBreakpointEventTypeDisabled: return "breakpoint disabled"; |
1023 | case eBreakpointEventTypeCommandChanged: return "command changed"; |
1024 | case eBreakpointEventTypeConditionChanged: return "condition changed"; |
1025 | case eBreakpointEventTypeIgnoreChanged: return "ignore count changed"; |
1026 | case eBreakpointEventTypeThreadChanged: return "thread changed"; |
1027 | case eBreakpointEventTypeAutoContinueChanged: return "autocontinue changed"; |
1028 | }; |
1029 | llvm_unreachable("Fully covered switch above!")::llvm::llvm_unreachable_internal("Fully covered switch above!" , "lldb/source/Breakpoint/Breakpoint.cpp", 1029); |
1030 | } |
1031 | |
1032 | Log *Breakpoint::BreakpointEventData::GetLogChannel() { |
1033 | return GetLog(LLDBLog::Breakpoints); |
1034 | } |
1035 | |
1036 | Breakpoint::BreakpointEventData::BreakpointEventData( |
1037 | BreakpointEventType sub_type, const BreakpointSP &new_breakpoint_sp) |
1038 | : m_breakpoint_event(sub_type), m_new_breakpoint_sp(new_breakpoint_sp) {} |
1039 | |
1040 | Breakpoint::BreakpointEventData::~BreakpointEventData() = default; |
1041 | |
1042 | ConstString Breakpoint::BreakpointEventData::GetFlavorString() { |
1043 | static ConstString g_flavor("Breakpoint::BreakpointEventData"); |
1044 | return g_flavor; |
1045 | } |
1046 | |
1047 | ConstString Breakpoint::BreakpointEventData::GetFlavor() const { |
1048 | return BreakpointEventData::GetFlavorString(); |
1049 | } |
1050 | |
1051 | BreakpointSP Breakpoint::BreakpointEventData::GetBreakpoint() const { |
1052 | return m_new_breakpoint_sp; |
1053 | } |
1054 | |
1055 | BreakpointEventType |
1056 | Breakpoint::BreakpointEventData::GetBreakpointEventType() const { |
1057 | return m_breakpoint_event; |
1058 | } |
1059 | |
1060 | void Breakpoint::BreakpointEventData::Dump(Stream *s) const { |
1061 | if (!s) |
1062 | return; |
1063 | BreakpointEventType event_type = GetBreakpointEventType(); |
1064 | break_id_t bkpt_id = GetBreakpoint()->GetID(); |
1065 | s->Format("bkpt: {0} type: {1}", bkpt_id, |
1066 | BreakpointEventTypeAsCString(event_type)); |
1067 | } |
1068 | |
1069 | const Breakpoint::BreakpointEventData * |
1070 | Breakpoint::BreakpointEventData::GetEventDataFromEvent(const Event *event) { |
1071 | if (event) { |
1072 | const EventData *event_data = event->GetData(); |
1073 | if (event_data && |
1074 | event_data->GetFlavor() == BreakpointEventData::GetFlavorString()) |
1075 | return static_cast<const BreakpointEventData *>(event->GetData()); |
1076 | } |
1077 | return nullptr; |
1078 | } |
1079 | |
1080 | BreakpointEventType |
1081 | Breakpoint::BreakpointEventData::GetBreakpointEventTypeFromEvent( |
1082 | const EventSP &event_sp) { |
1083 | const BreakpointEventData *data = GetEventDataFromEvent(event_sp.get()); |
1084 | |
1085 | if (data == nullptr) |
1086 | return eBreakpointEventTypeInvalidType; |
1087 | else |
1088 | return data->GetBreakpointEventType(); |
1089 | } |
1090 | |
1091 | BreakpointSP Breakpoint::BreakpointEventData::GetBreakpointFromEvent( |
1092 | const EventSP &event_sp) { |
1093 | BreakpointSP bp_sp; |
1094 | |
1095 | const BreakpointEventData *data = GetEventDataFromEvent(event_sp.get()); |
1096 | if (data) |
1097 | bp_sp = data->m_new_breakpoint_sp; |
1098 | |
1099 | return bp_sp; |
1100 | } |
1101 | |
1102 | size_t Breakpoint::BreakpointEventData::GetNumBreakpointLocationsFromEvent( |
1103 | const EventSP &event_sp) { |
1104 | const BreakpointEventData *data = GetEventDataFromEvent(event_sp.get()); |
1105 | if (data) |
1106 | return data->m_locations.GetSize(); |
1107 | |
1108 | return 0; |
1109 | } |
1110 | |
1111 | lldb::BreakpointLocationSP |
1112 | Breakpoint::BreakpointEventData::GetBreakpointLocationAtIndexFromEvent( |
1113 | const lldb::EventSP &event_sp, uint32_t bp_loc_idx) { |
1114 | lldb::BreakpointLocationSP bp_loc_sp; |
1115 | |
1116 | const BreakpointEventData *data = GetEventDataFromEvent(event_sp.get()); |
1117 | if (data) { |
1118 | bp_loc_sp = data->m_locations.GetByIndex(bp_loc_idx); |
1119 | } |
1120 | |
1121 | return bp_loc_sp; |
1122 | } |
1123 | |
1124 | json::Value Breakpoint::GetStatistics() { |
1125 | json::Object bp; |
1126 | bp.try_emplace("id", GetID()); |
1127 | bp.try_emplace("resolveTime", m_resolve_time.get().count()); |
1128 | bp.try_emplace("numLocations", (int64_t)GetNumLocations()); |
1129 | bp.try_emplace("numResolvedLocations", (int64_t)GetNumResolvedLocations()); |
1130 | bp.try_emplace("internal", IsInternal()); |
1131 | if (!m_kind_description.empty()) |
1132 | bp.try_emplace("kindDescription", m_kind_description); |
1133 | // Put the full structured data for reproducing this breakpoint in a key/value |
1134 | // pair named "details". This allows the breakpoint's details to be visible |
1135 | // in the stats in case we need to reproduce a breakpoint that has long |
1136 | // resolve times |
1137 | StructuredData::ObjectSP bp_data_sp = SerializeToStructuredData(); |
1138 | if (bp_data_sp) { |
1139 | std::string buffer; |
1140 | llvm::raw_string_ostream ss(buffer); |
1141 | json::OStream json_os(ss); |
1142 | bp_data_sp->Serialize(json_os); |
1143 | if (auto expected_value = llvm::json::parse(ss.str())) { |
1144 | bp.try_emplace("details", std::move(*expected_value)); |
1145 | } else { |
1146 | std::string details_error = toString(expected_value.takeError()); |
1147 | json::Object details; |
1148 | details.try_emplace("error", details_error); |
1149 | bp.try_emplace("details", std::move(details)); |
1150 | } |
1151 | } |
1152 | return json::Value(std::move(bp)); |
1153 | } |