Bug Summary

File:tools/lldb/source/Breakpoint/BreakpointOptions.cpp
Warning:line 74, column 5
Value stored to 'found_something' is never read

Annotated Source Code

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clang -cc1 -triple x86_64-pc-linux-gnu -analyze -disable-free -disable-llvm-verifier -discard-value-names -main-file-name BreakpointOptions.cpp -analyzer-store=region -analyzer-opt-analyze-nested-blocks -analyzer-eagerly-assume -analyzer-checker=core -analyzer-checker=apiModeling -analyzer-checker=unix -analyzer-checker=deadcode -analyzer-checker=cplusplus -analyzer-checker=security.insecureAPI.UncheckedReturn -analyzer-checker=security.insecureAPI.getpw -analyzer-checker=security.insecureAPI.gets -analyzer-checker=security.insecureAPI.mktemp -analyzer-checker=security.insecureAPI.mkstemp -analyzer-checker=security.insecureAPI.vfork -analyzer-checker=nullability.NullPassedToNonnull -analyzer-checker=nullability.NullReturnedFromNonnull -analyzer-output plist -w -mrelocation-model pic -pic-level 2 -mthread-model posix -fmath-errno -masm-verbose -mconstructor-aliases -munwind-tables -fuse-init-array -target-cpu x86-64 -dwarf-column-info -debugger-tuning=gdb -momit-leaf-frame-pointer -ffunction-sections -fdata-sections -resource-dir /usr/lib/llvm-7/lib/clang/7.0.0 -D HAVE_ROUND -D LLDB_CONFIGURATION_RELEASE -D _DEBUG -D _GNU_SOURCE -D __STDC_CONSTANT_MACROS -D __STDC_FORMAT_MACROS -D __STDC_LIMIT_MACROS -I /build/llvm-toolchain-snapshot-7~svn338205/build-llvm/tools/lldb/source/Breakpoint -I /build/llvm-toolchain-snapshot-7~svn338205/tools/lldb/source/Breakpoint -I /build/llvm-toolchain-snapshot-7~svn338205/build-llvm/tools/lldb/include -I /build/llvm-toolchain-snapshot-7~svn338205/tools/lldb/include -I /build/llvm-toolchain-snapshot-7~svn338205/build-llvm/include -I /build/llvm-toolchain-snapshot-7~svn338205/include -I /usr/include/python2.7 -I /build/llvm-toolchain-snapshot-7~svn338205/tools/clang/include -I /build/llvm-toolchain-snapshot-7~svn338205/build-llvm/tools/lldb/../clang/include -I /build/llvm-toolchain-snapshot-7~svn338205/tools/lldb/source/. -U NDEBUG -internal-isystem /usr/lib/gcc/x86_64-linux-gnu/8/../../../../include/c++/8 -internal-isystem /usr/lib/gcc/x86_64-linux-gnu/8/../../../../include/x86_64-linux-gnu/c++/8 -internal-isystem /usr/lib/gcc/x86_64-linux-gnu/8/../../../../include/x86_64-linux-gnu/c++/8 -internal-isystem /usr/lib/gcc/x86_64-linux-gnu/8/../../../../include/c++/8/backward -internal-isystem /usr/include/clang/7.0.0/include/ -internal-isystem /usr/local/include -internal-isystem /usr/lib/llvm-7/lib/clang/7.0.0/include -internal-externc-isystem /usr/lib/gcc/x86_64-linux-gnu/8/include -internal-externc-isystem /usr/include/x86_64-linux-gnu -internal-externc-isystem /include -internal-externc-isystem /usr/include -O2 -Wno-unused-parameter -Wwrite-strings -Wno-missing-field-initializers -Wno-long-long -Wno-maybe-uninitialized -Wno-class-memaccess -Wno-comment -Wno-deprecated-declarations -Wno-unknown-pragmas -Wno-strict-aliasing -Wno-deprecated-register -Wno-vla-extension -std=c++11 -fdeprecated-macro -fdebug-compilation-dir /build/llvm-toolchain-snapshot-7~svn338205/build-llvm/tools/lldb/source/Breakpoint -ferror-limit 19 -fmessage-length 0 -fvisibility-inlines-hidden -fobjc-runtime=gcc -fdiagnostics-show-option -vectorize-loops -vectorize-slp -analyzer-output=html -analyzer-config stable-report-filename=true -o /tmp/scan-build-2018-07-29-043837-17923-1 -x c++ /build/llvm-toolchain-snapshot-7~svn338205/tools/lldb/source/Breakpoint/BreakpointOptions.cpp -faddrsig
1//===-- BreakpointOptions.cpp -----------------------------------*- C++ -*-===//
2//
3// The LLVM Compiler Infrastructure
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9
10// C Includes
11// C++ Includes
12// Other libraries and framework includes
13// Project includes
14#include "lldb/Breakpoint/BreakpointOptions.h"
15
16#include "lldb/Breakpoint/StoppointCallbackContext.h"
17#include "lldb/Core/Value.h"
18#include "lldb/Interpreter/CommandInterpreter.h"
19#include "lldb/Interpreter/CommandReturnObject.h"
20#include "lldb/Target/Process.h"
21#include "lldb/Target/Target.h"
22#include "lldb/Target/ThreadSpec.h"
23#include "lldb/Utility/Stream.h"
24#include "lldb/Utility/StringList.h"
25
26#include "llvm/ADT/STLExtras.h"
27
28using namespace lldb;
29using namespace lldb_private;
30
31const char
32 *BreakpointOptions::CommandData::g_option_names[static_cast<uint32_t>(
33 BreakpointOptions::CommandData::OptionNames::LastOptionName)]{
34 "UserSource", "ScriptSource", "StopOnError"};
35
36StructuredData::ObjectSP
37BreakpointOptions::CommandData::SerializeToStructuredData() {
38 size_t num_strings = user_source.GetSize();
39 if (num_strings == 0 && script_source.empty()) {
40 // We shouldn't serialize commands if there aren't any, return an empty sp
41 // to indicate this.
42 return StructuredData::ObjectSP();
43 }
44
45 StructuredData::DictionarySP options_dict_sp(
46 new StructuredData::Dictionary());
47 options_dict_sp->AddBooleanItem(GetKey(OptionNames::StopOnError),
48 stop_on_error);
49
50 StructuredData::ArraySP user_source_sp(new StructuredData::Array());
51 for (size_t i = 0; i < num_strings; i++) {
52 StructuredData::StringSP item_sp(
53 new StructuredData::String(user_source[i]));
54 user_source_sp->AddItem(item_sp);
55 options_dict_sp->AddItem(GetKey(OptionNames::UserSource), user_source_sp);
56 }
57
58 options_dict_sp->AddStringItem(
59 GetKey(OptionNames::Interpreter),
60 ScriptInterpreter::LanguageToString(interpreter));
61 return options_dict_sp;
62}
63
64std::unique_ptr<BreakpointOptions::CommandData>
65BreakpointOptions::CommandData::CreateFromStructuredData(
66 const StructuredData::Dictionary &options_dict, Status &error) {
67 std::unique_ptr<CommandData> data_up(new CommandData());
68 bool found_something = false;
69
70 bool success = options_dict.GetValueForKeyAsBoolean(
71 GetKey(OptionNames::StopOnError), data_up->stop_on_error);
72
73 if (success)
74 found_something = true;
Value stored to 'found_something' is never read
75
76 llvm::StringRef interpreter_str;
77 ScriptLanguage interp_language;
78 success = options_dict.GetValueForKeyAsString(
79 GetKey(OptionNames::Interpreter), interpreter_str);
80
81 if (!success) {
82 error.SetErrorString("Missing command language value.");
83 return data_up;
84 }
85
86 found_something = true;
87 interp_language = ScriptInterpreter::StringToLanguage(interpreter_str);
88 if (interp_language == eScriptLanguageUnknown) {
89 error.SetErrorStringWithFormatv("Unknown breakpoint command language: {0}.",
90 interpreter_str);
91 return data_up;
92 }
93 data_up->interpreter = interp_language;
94
95 StructuredData::Array *user_source;
96 success = options_dict.GetValueForKeyAsArray(GetKey(OptionNames::UserSource),
97 user_source);
98 if (success) {
99 found_something = true;
100 size_t num_elems = user_source->GetSize();
101 for (size_t i = 0; i < num_elems; i++) {
102 llvm::StringRef elem_string;
103 success = user_source->GetItemAtIndexAsString(i, elem_string);
104 if (success)
105 data_up->user_source.AppendString(elem_string);
106 }
107 }
108
109 if (found_something)
110 return data_up;
111 else
112 return std::unique_ptr<BreakpointOptions::CommandData>();
113}
114
115const char *BreakpointOptions::g_option_names[(
116 size_t)BreakpointOptions::OptionNames::LastOptionName]{
117 "ConditionText", "IgnoreCount",
118 "EnabledState", "OneShotState", "AutoContinue"};
119
120bool BreakpointOptions::NullCallback(void *baton,
121 StoppointCallbackContext *context,
122 lldb::user_id_t break_id,
123 lldb::user_id_t break_loc_id) {
124 return true;
125}
126
127//----------------------------------------------------------------------
128// BreakpointOptions constructor
129//----------------------------------------------------------------------
130BreakpointOptions::BreakpointOptions(bool all_flags_set)
131 : m_callback(BreakpointOptions::NullCallback), m_callback_baton_sp(),
132 m_baton_is_command_baton(false), m_callback_is_synchronous(false),
133 m_enabled(true), m_one_shot(false), m_ignore_count(0), m_thread_spec_ap(),
134 m_condition_text(), m_condition_text_hash(0), m_auto_continue(false),
135 m_set_flags(0) {
136 if (all_flags_set)
137 m_set_flags.Set(~((Flags::ValueType) 0));
138 }
139
140BreakpointOptions::BreakpointOptions(const char *condition, bool enabled,
141 int32_t ignore, bool one_shot,
142 bool auto_continue)
143 : m_callback(nullptr), m_baton_is_command_baton(false),
144 m_callback_is_synchronous(false), m_enabled(enabled),
145 m_one_shot(one_shot), m_ignore_count(ignore),
146 m_condition_text_hash(0), m_auto_continue(auto_continue)
147{
148 m_set_flags.Set(eEnabled | eIgnoreCount | eOneShot
149 | eAutoContinue);
150 if (condition && *condition != '\0') {
151 SetCondition(condition);
152 }
153}
154
155//----------------------------------------------------------------------
156// BreakpointOptions copy constructor
157//----------------------------------------------------------------------
158BreakpointOptions::BreakpointOptions(const BreakpointOptions &rhs)
159 : m_callback(rhs.m_callback), m_callback_baton_sp(rhs.m_callback_baton_sp),
160 m_baton_is_command_baton(rhs.m_baton_is_command_baton),
161 m_callback_is_synchronous(rhs.m_callback_is_synchronous),
162 m_enabled(rhs.m_enabled), m_one_shot(rhs.m_one_shot),
163 m_ignore_count(rhs.m_ignore_count), m_thread_spec_ap(),
164 m_auto_continue(rhs.m_auto_continue),
165 m_set_flags(rhs.m_set_flags) {
166 if (rhs.m_thread_spec_ap.get() != nullptr)
167 m_thread_spec_ap.reset(new ThreadSpec(*rhs.m_thread_spec_ap.get()));
168 m_condition_text = rhs.m_condition_text;
169 m_condition_text_hash = rhs.m_condition_text_hash;
170}
171
172//----------------------------------------------------------------------
173// BreakpointOptions assignment operator
174//----------------------------------------------------------------------
175const BreakpointOptions &BreakpointOptions::
176operator=(const BreakpointOptions &rhs) {
177 m_callback = rhs.m_callback;
178 m_callback_baton_sp = rhs.m_callback_baton_sp;
179 m_baton_is_command_baton = rhs.m_baton_is_command_baton;
180 m_callback_is_synchronous = rhs.m_callback_is_synchronous;
181 m_enabled = rhs.m_enabled;
182 m_one_shot = rhs.m_one_shot;
183 m_ignore_count = rhs.m_ignore_count;
184 if (rhs.m_thread_spec_ap.get() != nullptr)
185 m_thread_spec_ap.reset(new ThreadSpec(*rhs.m_thread_spec_ap.get()));
186 m_condition_text = rhs.m_condition_text;
187 m_condition_text_hash = rhs.m_condition_text_hash;
188 m_auto_continue = rhs.m_auto_continue;
189 m_set_flags = rhs.m_set_flags;
190 return *this;
191}
192
193void BreakpointOptions::CopyOverSetOptions(const BreakpointOptions &incoming)
194{
195 if (incoming.m_set_flags.Test(eEnabled))
196 {
197 m_enabled = incoming.m_enabled;
198 m_set_flags.Set(eEnabled);
199 }
200 if (incoming.m_set_flags.Test(eOneShot))
201 {
202 m_one_shot = incoming.m_one_shot;
203 m_set_flags.Set(eOneShot);
204 }
205 if (incoming.m_set_flags.Test(eCallback))
206 {
207 m_callback = incoming.m_callback;
208 m_callback_baton_sp = incoming.m_callback_baton_sp;
209 m_callback_is_synchronous = incoming.m_callback_is_synchronous;
210 m_baton_is_command_baton = incoming.m_baton_is_command_baton;
211 m_set_flags.Set(eCallback);
212 }
213 if (incoming.m_set_flags.Test(eIgnoreCount))
214 {
215 m_ignore_count = incoming.m_ignore_count;
216 m_set_flags.Set(eIgnoreCount);
217 }
218 if (incoming.m_set_flags.Test(eCondition))
219 {
220 // If we're copying over an empty condition, mark it as unset.
221 if (incoming.m_condition_text.empty()) {
222 m_condition_text.clear();
223 m_condition_text_hash = 0;
224 m_set_flags.Clear(eCondition);
225 } else {
226 m_condition_text = incoming.m_condition_text;
227 m_condition_text_hash = incoming.m_condition_text_hash;
228 m_set_flags.Set(eCondition);
229 }
230 }
231 if (incoming.m_set_flags.Test(eAutoContinue))
232 {
233 m_auto_continue = incoming.m_auto_continue;
234 m_set_flags.Set(eAutoContinue);
235 }
236 if (incoming.m_set_flags.Test(eThreadSpec) && incoming.m_thread_spec_ap)
237 {
238 if (!m_thread_spec_ap)
239 m_thread_spec_ap.reset(new ThreadSpec(*incoming.m_thread_spec_ap.get()));
240 else
241 *m_thread_spec_ap.get() = *incoming.m_thread_spec_ap.get();
242 m_set_flags.Set(eThreadSpec);
243 }
244}
245
246//----------------------------------------------------------------------
247// Destructor
248//----------------------------------------------------------------------
249BreakpointOptions::~BreakpointOptions() = default;
250
251std::unique_ptr<BreakpointOptions> BreakpointOptions::CreateFromStructuredData(
252 Target &target, const StructuredData::Dictionary &options_dict,
253 Status &error) {
254 bool enabled = true;
255 bool one_shot = false;
256 bool auto_continue = false;
257 int32_t ignore_count = 0;
258 llvm::StringRef condition_ref("");
259 Flags set_options;
260
261 const char *key = GetKey(OptionNames::EnabledState);
262 bool success;
263 if (key) {
264 success = options_dict.GetValueForKeyAsBoolean(key, enabled);
265 if (!success) {
266 error.SetErrorStringWithFormat("%s key is not a boolean.",
267 GetKey(OptionNames::EnabledState));
268 return nullptr;
269 }
270 set_options.Set(eEnabled);
271 }
272
273 key = GetKey(OptionNames::OneShotState);
274 if (key) {
275 success = options_dict.GetValueForKeyAsBoolean(key, one_shot);
276 if (!success) {
277 error.SetErrorStringWithFormat("%s key is not a boolean.",
278 GetKey(OptionNames::OneShotState));
279 return nullptr;
280 }
281 set_options.Set(eOneShot);
282 }
283
284 key = GetKey(OptionNames::AutoContinue);
285 if (key) {
286 success = options_dict.GetValueForKeyAsBoolean(key, auto_continue);
287 if (!success) {
288 error.SetErrorStringWithFormat("%s key is not a boolean.",
289 GetKey(OptionNames::AutoContinue));
290 return nullptr;
291 }
292 set_options.Set(eAutoContinue);
293 }
294
295 key = GetKey(OptionNames::IgnoreCount);
296 if (key) {
297 success = options_dict.GetValueForKeyAsInteger(key, ignore_count);
298 if (!success) {
299 error.SetErrorStringWithFormat("%s key is not an integer.",
300 GetKey(OptionNames::IgnoreCount));
301 return nullptr;
302 }
303 set_options.Set(eIgnoreCount);
304 }
305
306 key = GetKey(OptionNames::ConditionText);
307 if (key) {
308 success = options_dict.GetValueForKeyAsString(key, condition_ref);
309 if (!success) {
310 error.SetErrorStringWithFormat("%s key is not an string.",
311 GetKey(OptionNames::ConditionText));
312 return nullptr;
313 }
314 set_options.Set(eCondition);
315 }
316
317 std::unique_ptr<CommandData> cmd_data_up;
318 StructuredData::Dictionary *cmds_dict;
319 success = options_dict.GetValueForKeyAsDictionary(
320 CommandData::GetSerializationKey(), cmds_dict);
321 if (success && cmds_dict) {
322 Status cmds_error;
323 cmd_data_up = CommandData::CreateFromStructuredData(*cmds_dict, cmds_error);
324 if (cmds_error.Fail()) {
325 error.SetErrorStringWithFormat(
326 "Failed to deserialize breakpoint command options: %s.",
327 cmds_error.AsCString());
328 return nullptr;
329 }
330 }
331
332 auto bp_options = llvm::make_unique<BreakpointOptions>(
333 condition_ref.str().c_str(), enabled,
334 ignore_count, one_shot, auto_continue);
335 if (cmd_data_up.get()) {
336 if (cmd_data_up->interpreter == eScriptLanguageNone)
337 bp_options->SetCommandDataCallback(cmd_data_up);
338 else {
339 ScriptInterpreter *interp =
340 target.GetDebugger().GetCommandInterpreter().GetScriptInterpreter();
341 if (!interp) {
342 error.SetErrorStringWithFormat(
343 "Can't set script commands - no script interpreter");
344 return nullptr;
345 }
346 if (interp->GetLanguage() != cmd_data_up->interpreter) {
347 error.SetErrorStringWithFormat(
348 "Current script language doesn't match breakpoint's language: %s",
349 ScriptInterpreter::LanguageToString(cmd_data_up->interpreter)
350 .c_str());
351 return nullptr;
352 }
353 Status script_error;
354 script_error =
355 interp->SetBreakpointCommandCallback(bp_options.get(), cmd_data_up);
356 if (script_error.Fail()) {
357 error.SetErrorStringWithFormat("Error generating script callback: %s.",
358 error.AsCString());
359 return nullptr;
360 }
361 }
362 }
363
364 StructuredData::Dictionary *thread_spec_dict;
365 success = options_dict.GetValueForKeyAsDictionary(
366 ThreadSpec::GetSerializationKey(), thread_spec_dict);
367 if (success) {
368 Status thread_spec_error;
369 std::unique_ptr<ThreadSpec> thread_spec_up =
370 ThreadSpec::CreateFromStructuredData(*thread_spec_dict,
371 thread_spec_error);
372 if (thread_spec_error.Fail()) {
373 error.SetErrorStringWithFormat(
374 "Failed to deserialize breakpoint thread spec options: %s.",
375 thread_spec_error.AsCString());
376 return nullptr;
377 }
378 bp_options->SetThreadSpec(thread_spec_up);
379 }
380 return bp_options;
381}
382
383StructuredData::ObjectSP BreakpointOptions::SerializeToStructuredData() {
384 StructuredData::DictionarySP options_dict_sp(
385 new StructuredData::Dictionary());
386 if (m_set_flags.Test(eEnabled))
387 options_dict_sp->AddBooleanItem(GetKey(OptionNames::EnabledState),
388 m_enabled);
389 if (m_set_flags.Test(eOneShot))
390 options_dict_sp->AddBooleanItem(GetKey(OptionNames::OneShotState),
391 m_one_shot);
392 if (m_set_flags.Test(eAutoContinue))
393 options_dict_sp->AddBooleanItem(GetKey(OptionNames::AutoContinue),
394 m_auto_continue);
395 if (m_set_flags.Test(eIgnoreCount))
396 options_dict_sp->AddIntegerItem(GetKey(OptionNames::IgnoreCount),
397 m_ignore_count);
398 if (m_set_flags.Test(eCondition))
399 options_dict_sp->AddStringItem(GetKey(OptionNames::ConditionText),
400 m_condition_text);
401
402 if (m_set_flags.Test(eCallback) && m_baton_is_command_baton) {
403 auto cmd_baton =
404 std::static_pointer_cast<CommandBaton>(m_callback_baton_sp);
405 StructuredData::ObjectSP commands_sp =
406 cmd_baton->getItem()->SerializeToStructuredData();
407 if (commands_sp) {
408 options_dict_sp->AddItem(
409 BreakpointOptions::CommandData::GetSerializationKey(), commands_sp);
410 }
411 }
412 if (m_set_flags.Test(eThreadSpec) && m_thread_spec_ap) {
413 StructuredData::ObjectSP thread_spec_sp =
414 m_thread_spec_ap->SerializeToStructuredData();
415 options_dict_sp->AddItem(ThreadSpec::GetSerializationKey(), thread_spec_sp);
416 }
417
418 return options_dict_sp;
419}
420
421//------------------------------------------------------------------
422// Callbacks
423//------------------------------------------------------------------
424void BreakpointOptions::SetCallback(BreakpointHitCallback callback,
425 const lldb::BatonSP &callback_baton_sp,
426 bool callback_is_synchronous) {
427 // FIXME: This seems unsafe. If BatonSP actually *is* a CommandBaton, but
428 // in a shared_ptr<Baton> instead of a shared_ptr<CommandBaton>, then we will
429 // set m_baton_is_command_baton to false, which is incorrect. One possible
430 // solution is to make the base Baton class provide a method such as:
431 // virtual StringRef getBatonId() const { return ""; }
432 // and have CommandBaton override this to return something unique, and then
433 // check for it here. Another option might be to make Baton using the llvm
434 // casting infrastructure, so that we could write something like:
435 // if (llvm::isa<CommandBaton>(callback_baton_sp))
436 // at relevant callsites instead of storing a boolean.
437 m_callback_is_synchronous = callback_is_synchronous;
438 m_callback = callback;
439 m_callback_baton_sp = callback_baton_sp;
440 m_baton_is_command_baton = false;
441 m_set_flags.Set(eCallback);
442}
443
444void BreakpointOptions::SetCallback(
445 BreakpointHitCallback callback,
446 const BreakpointOptions::CommandBatonSP &callback_baton_sp,
447 bool callback_is_synchronous) {
448 m_callback_is_synchronous = callback_is_synchronous;
449 m_callback = callback;
450 m_callback_baton_sp = callback_baton_sp;
451 m_baton_is_command_baton = true;
452 m_set_flags.Set(eCallback);
453}
454
455void BreakpointOptions::ClearCallback() {
456 m_callback = BreakpointOptions::NullCallback;
457 m_callback_is_synchronous = false;
458 m_callback_baton_sp.reset();
459 m_baton_is_command_baton = false;
460 m_set_flags.Clear(eCallback);
461}
462
463Baton *BreakpointOptions::GetBaton() { return m_callback_baton_sp.get(); }
464
465const Baton *BreakpointOptions::GetBaton() const {
466 return m_callback_baton_sp.get();
467}
468
469bool BreakpointOptions::InvokeCallback(StoppointCallbackContext *context,
470 lldb::user_id_t break_id,
471 lldb::user_id_t break_loc_id) {
472 if (m_callback) {
473 if (context->is_synchronous == IsCallbackSynchronous()) {
474 return m_callback(m_callback_baton_sp ? m_callback_baton_sp->data()
475 : nullptr,
476 context, break_id, break_loc_id);
477 } else if (IsCallbackSynchronous()) {
478 // If a synchronous callback is called at async time, it should not say
479 // to stop.
480 return false;
481 }
482 }
483 return true;
484}
485
486bool BreakpointOptions::HasCallback() const {
487 return m_callback != BreakpointOptions::NullCallback;
488}
489
490bool BreakpointOptions::GetCommandLineCallbacks(StringList &command_list) {
491 if (!HasCallback())
492 return false;
493 if (!m_baton_is_command_baton)
494 return false;
495
496 auto cmd_baton = std::static_pointer_cast<CommandBaton>(m_callback_baton_sp);
497 CommandData *data = cmd_baton->getItem();
498 if (!data)
499 return false;
500 command_list = data->user_source;
501 return true;
502}
503
504void BreakpointOptions::SetCondition(const char *condition) {
505 if (!condition || condition[0] == '\0') {
506 condition = "";
507 m_set_flags.Clear(eCondition);
508 }
509 else
510 m_set_flags.Set(eCondition);
511
512 m_condition_text.assign(condition);
513 std::hash<std::string> hasher;
514 m_condition_text_hash = hasher(m_condition_text);
515}
516
517const char *BreakpointOptions::GetConditionText(size_t *hash) const {
518 if (!m_condition_text.empty()) {
519 if (hash)
520 *hash = m_condition_text_hash;
521
522 return m_condition_text.c_str();
523 } else {
524 return nullptr;
525 }
526}
527
528const ThreadSpec *BreakpointOptions::GetThreadSpecNoCreate() const {
529 return m_thread_spec_ap.get();
530}
531
532ThreadSpec *BreakpointOptions::GetThreadSpec() {
533 if (m_thread_spec_ap.get() == nullptr)
534 {
535 m_set_flags.Set(eThreadSpec);
536 m_thread_spec_ap.reset(new ThreadSpec());
537 }
538
539 return m_thread_spec_ap.get();
540}
541
542void BreakpointOptions::SetThreadID(lldb::tid_t thread_id) {
543 GetThreadSpec()->SetTID(thread_id);
544 m_set_flags.Set(eThreadSpec);
545}
546
547void BreakpointOptions::SetThreadSpec(
548 std::unique_ptr<ThreadSpec> &thread_spec_up) {
549 m_thread_spec_ap = std::move(thread_spec_up);
550 m_set_flags.Set(eThreadSpec);
551}
552
553void BreakpointOptions::GetDescription(Stream *s,
554 lldb::DescriptionLevel level) const {
555 // Figure out if there are any options not at their default value, and only
556 // print anything if there are:
557
558 if (m_ignore_count != 0 || !m_enabled || m_one_shot || m_auto_continue ||
559 (GetThreadSpecNoCreate() != nullptr &&
560 GetThreadSpecNoCreate()->HasSpecification())) {
561 if (level == lldb::eDescriptionLevelVerbose) {
562 s->EOL();
563 s->IndentMore();
564 s->Indent();
565 s->PutCString("Breakpoint Options:\n");
566 s->IndentMore();
567 s->Indent();
568 } else
569 s->PutCString(" Options: ");
570
571 if (m_ignore_count > 0)
572 s->Printf("ignore: %d ", m_ignore_count);
573 s->Printf("%sabled ", m_enabled ? "en" : "dis");
574
575 if (m_one_shot)
576 s->Printf("one-shot ");
577
578 if (m_auto_continue)
579 s->Printf("auto-continue ");
580
581 if (m_thread_spec_ap.get())
582 m_thread_spec_ap->GetDescription(s, level);
583
584 if (level == lldb::eDescriptionLevelFull) {
585 s->IndentLess();
586 s->IndentMore();
587 }
588 }
589
590 if (m_callback_baton_sp.get()) {
591 if (level != eDescriptionLevelBrief) {
592 s->EOL();
593 m_callback_baton_sp->GetDescription(s, level);
594 }
595 }
596 if (!m_condition_text.empty()) {
597 if (level != eDescriptionLevelBrief) {
598 s->EOL();
599 s->Printf("Condition: %s\n", m_condition_text.c_str());
600 }
601 }
602}
603
604void BreakpointOptions::CommandBaton::GetDescription(
605 Stream *s, lldb::DescriptionLevel level) const {
606 const CommandData *data = getItem();
607
608 if (level == eDescriptionLevelBrief) {
609 s->Printf(", commands = %s",
610 (data && data->user_source.GetSize() > 0) ? "yes" : "no");
611 return;
612 }
613
614 s->IndentMore();
615 s->Indent("Breakpoint commands");
616 if (data->interpreter != eScriptLanguageNone)
617 s->Printf(" (%s):\n",
618 ScriptInterpreter::LanguageToString(data->interpreter).c_str());
619 else
620 s->PutCString(":\n");
621
622 s->IndentMore();
623 if (data && data->user_source.GetSize() > 0) {
624 const size_t num_strings = data->user_source.GetSize();
625 for (size_t i = 0; i < num_strings; ++i) {
626 s->Indent(data->user_source.GetStringAtIndex(i));
627 s->EOL();
628 }
629 } else {
630 s->PutCString("No commands.\n");
631 }
632 s->IndentLess();
633 s->IndentLess();
634}
635
636void BreakpointOptions::SetCommandDataCallback(
637 std::unique_ptr<CommandData> &cmd_data) {
638 cmd_data->interpreter = eScriptLanguageNone;
639 auto baton_sp = std::make_shared<CommandBaton>(std::move(cmd_data));
640 SetCallback(BreakpointOptions::BreakpointOptionsCallbackFunction, baton_sp);
641 m_set_flags.Set(eCallback);
642}
643
644bool BreakpointOptions::BreakpointOptionsCallbackFunction(
645 void *baton, StoppointCallbackContext *context, lldb::user_id_t break_id,
646 lldb::user_id_t break_loc_id) {
647 bool ret_value = true;
648 if (baton == nullptr)
649 return true;
650
651 CommandData *data = (CommandData *)baton;
652 StringList &commands = data->user_source;
653
654 if (commands.GetSize() > 0) {
655 ExecutionContext exe_ctx(context->exe_ctx_ref);
656 Target *target = exe_ctx.GetTargetPtr();
657 if (target) {
658 CommandReturnObject result;
659 Debugger &debugger = target->GetDebugger();
660 // Rig up the results secondary output stream to the debugger's, so the
661 // output will come out synchronously if the debugger is set up that way.
662
663 StreamSP output_stream(debugger.GetAsyncOutputStream());
664 StreamSP error_stream(debugger.GetAsyncErrorStream());
665 result.SetImmediateOutputStream(output_stream);
666 result.SetImmediateErrorStream(error_stream);
667
668 CommandInterpreterRunOptions options;
669 options.SetStopOnContinue(true);
670 options.SetStopOnError(data->stop_on_error);
671 options.SetEchoCommands(true);
672 options.SetPrintResults(true);
673 options.SetAddToHistory(false);
674
675 debugger.GetCommandInterpreter().HandleCommands(commands, &exe_ctx,
676 options, result);
677 result.GetImmediateOutputStream()->Flush();
678 result.GetImmediateErrorStream()->Flush();
679 }
680 }
681 return ret_value;
682}
683
684void BreakpointOptions::Clear()
685{
686 m_set_flags.Clear();
687 m_thread_spec_ap.release();
688 m_one_shot = false;
689 m_ignore_count = 0;
690 m_auto_continue = false;
691 m_callback = nullptr;
692 m_callback_baton_sp.reset();
693 m_baton_is_command_baton = false;
694 m_callback_is_synchronous = false;
695 m_enabled = false;
696 m_condition_text.clear();
697}