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ItaniumABILanguageRuntime.cpp
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1//===-- ItaniumABILanguageRuntime.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
10
13#include "lldb/Core/Mangled.h"
14#include "lldb/Core/Module.h"
24#include "lldb/Symbol/Symbol.h"
27#include "lldb/Target/Process.h"
31#include "lldb/Target/Target.h"
32#include "lldb/Target/Thread.h"
35#include "lldb/Utility/Log.h"
36#include "lldb/Utility/Scalar.h"
37#include "lldb/Utility/Status.h"
38
39#include <vector>
40
41using namespace lldb;
42using namespace lldb_private;
43
45
46static const char *vtable_demangled_prefix = "vtable for ";
47
49
50bool ItaniumABILanguageRuntime::CouldHaveDynamicValue(ValueObject &in_value) {
51 const bool check_cxx = true;
52 const bool check_objc = false;
53 return in_value.GetCompilerType().IsPossibleDynamicType(nullptr, check_cxx,
54 check_objc);
55}
56
58 ValueObject &in_value, lldb::addr_t original_ptr,
59 lldb::addr_t vtable_load_addr) {
60 if (m_process && vtable_load_addr != LLDB_INVALID_ADDRESS) {
61 // Find the symbol that contains the "vtable_load_addr" address
62 Address vtable_addr;
63 Target &target = m_process->GetTarget();
64 if (!target.GetSectionLoadList().IsEmpty()) {
65 if (target.GetSectionLoadList().ResolveLoadAddress(vtable_load_addr,
66 vtable_addr)) {
67 // See if we have cached info for this type already
68 TypeAndOrName type_info = GetDynamicTypeInfo(vtable_addr);
69 if (type_info)
70 return type_info;
71
74 vtable_addr, eSymbolContextSymbol, sc);
75 Symbol *symbol = sc.symbol;
76 if (symbol != nullptr) {
77 const char *name =
78 symbol->GetMangled().GetDemangledName().AsCString();
79 if (name && strstr(name, vtable_demangled_prefix) == name) {
81 LLDB_LOGF(log,
82 "0x%16.16" PRIx64
83 ": static-type = '%s' has vtable symbol '%s'\n",
84 original_ptr, in_value.GetTypeName().GetCString(), name);
85 // We are a C++ class, that's good. Get the class name and look it
86 // up:
87 const char *class_name = name + strlen(vtable_demangled_prefix);
88 // We know the class name is absolute, so tell FindTypes that by
89 // prefixing it with the root namespace:
90 std::string lookup_name("::");
91 lookup_name.append(class_name);
92
93 type_info.SetName(class_name);
94 const bool exact_match = true;
95 TypeList class_types;
96
97 // First look in the module that the vtable symbol came from and
98 // look for a single exact match.
99 llvm::DenseSet<SymbolFile *> searched_symbol_files;
100 if (sc.module_sp)
101 sc.module_sp->FindTypes(ConstString(lookup_name), exact_match, 1,
102 searched_symbol_files, class_types);
103
104 // If we didn't find a symbol, then move on to the entire module
105 // list in the target and get as many unique matches as possible
106 if (class_types.Empty())
107 target.GetImages().FindTypes(nullptr, ConstString(lookup_name),
108 exact_match, UINT32_MAX,
109 searched_symbol_files, class_types);
110
111 lldb::TypeSP type_sp;
112 if (class_types.Empty()) {
113 LLDB_LOGF(log, "0x%16.16" PRIx64 ": is not dynamic\n",
114 original_ptr);
115 return TypeAndOrName();
116 }
117 if (class_types.GetSize() == 1) {
118 type_sp = class_types.GetTypeAtIndex(0);
119 if (type_sp) {
121 type_sp->GetForwardCompilerType())) {
122 LLDB_LOGF(
123 log,
124 "0x%16.16" PRIx64
125 ": static-type = '%s' has dynamic type: uid={0x%" PRIx64
126 "}, type-name='%s'\n",
127 original_ptr, in_value.GetTypeName().AsCString(),
128 type_sp->GetID(), type_sp->GetName().GetCString());
129 type_info.SetTypeSP(type_sp);
130 }
131 }
132 } else {
133 size_t i;
134 if (log) {
135 for (i = 0; i < class_types.GetSize(); i++) {
136 type_sp = class_types.GetTypeAtIndex(i);
137 if (type_sp) {
138 LLDB_LOGF(
139 log,
140 "0x%16.16" PRIx64
141 ": static-type = '%s' has multiple matching dynamic "
142 "types: uid={0x%" PRIx64 "}, type-name='%s'\n",
143 original_ptr, in_value.GetTypeName().AsCString(),
144 type_sp->GetID(), type_sp->GetName().GetCString());
145 }
146 }
147 }
148
149 for (i = 0; i < class_types.GetSize(); i++) {
150 type_sp = class_types.GetTypeAtIndex(i);
151 if (type_sp) {
153 type_sp->GetForwardCompilerType())) {
154 LLDB_LOGF(
155 log,
156 "0x%16.16" PRIx64 ": static-type = '%s' has multiple "
157 "matching dynamic types, picking "
158 "this one: uid={0x%" PRIx64 "}, type-name='%s'\n",
159 original_ptr, in_value.GetTypeName().AsCString(),
160 type_sp->GetID(), type_sp->GetName().GetCString());
161 type_info.SetTypeSP(type_sp);
162 }
163 }
164 }
165
166 if (log) {
167 LLDB_LOGF(log,
168 "0x%16.16" PRIx64
169 ": static-type = '%s' has multiple matching dynamic "
170 "types, didn't find a C++ match\n",
171 original_ptr, in_value.GetTypeName().AsCString());
172 }
173 }
174 if (type_info)
175 SetDynamicTypeInfo(vtable_addr, type_info);
176 return type_info;
177 }
178 }
179 }
180 }
181 }
182 return TypeAndOrName();
183}
184
186 ValueObject &in_value, lldb::DynamicValueType use_dynamic,
187 TypeAndOrName &class_type_or_name, Address &dynamic_address,
188 Value::ValueType &value_type) {
189 // For Itanium, if the type has a vtable pointer in the object, it will be at
190 // offset 0 in the object. That will point to the "address point" within the
191 // vtable (not the beginning of the vtable.) We can then look up the symbol
192 // containing this "address point" and that symbol's name demangled will
193 // contain the full class name. The second pointer above the "address point"
194 // is the "offset_to_top". We'll use that to get the start of the value
195 // object which holds the dynamic type.
196 //
197
198 class_type_or_name.Clear();
199 value_type = Value::ValueType::Scalar;
200
201 // Only a pointer or reference type can have a different dynamic and static
202 // type:
203 if (!CouldHaveDynamicValue(in_value))
204 return false;
205
206 // First job, pull out the address at 0 offset from the object.
207 AddressType address_type;
208 lldb::addr_t original_ptr = in_value.GetPointerValue(&address_type);
209 if (original_ptr == LLDB_INVALID_ADDRESS)
210 return false;
211
212 ExecutionContext exe_ctx(in_value.GetExecutionContextRef());
213
214 Process *process = exe_ctx.GetProcessPtr();
215
216 if (process == nullptr)
217 return false;
218
220 const lldb::addr_t vtable_address_point =
221 process->ReadPointerFromMemory(original_ptr, error);
222
223 if (!error.Success() || vtable_address_point == LLDB_INVALID_ADDRESS)
224 return false;
225
226 class_type_or_name = GetTypeInfoFromVTableAddress(in_value, original_ptr,
227 vtable_address_point);
228
229 if (!class_type_or_name)
230 return false;
231
232 CompilerType type = class_type_or_name.GetCompilerType();
233 // There can only be one type with a given name, so we've just found
234 // duplicate definitions, and this one will do as well as any other. We
235 // don't consider something to have a dynamic type if it is the same as
236 // the static type. So compare against the value we were handed.
237 if (!type)
238 return true;
239
240 if (TypeSystemClang::AreTypesSame(in_value.GetCompilerType(), type)) {
241 // The dynamic type we found was the same type, so we don't have a
242 // dynamic type here...
243 return false;
244 }
245
246 // The offset_to_top is two pointers above the vtable pointer.
247 const uint32_t addr_byte_size = process->GetAddressByteSize();
248 const lldb::addr_t offset_to_top_location =
249 vtable_address_point - 2 * addr_byte_size;
250 // Watch for underflow, offset_to_top_location should be less than
251 // vtable_address_point
252 if (offset_to_top_location >= vtable_address_point)
253 return false;
254 const int64_t offset_to_top = process->ReadSignedIntegerFromMemory(
255 offset_to_top_location, addr_byte_size, INT64_MIN, error);
256
257 if (offset_to_top == INT64_MIN)
258 return false;
259 // So the dynamic type is a value that starts at offset_to_top above
260 // the original address.
261 lldb::addr_t dynamic_addr = original_ptr + offset_to_top;
263 dynamic_addr, dynamic_address)) {
264 dynamic_address.SetRawAddress(dynamic_addr);
265 }
266 return true;
267}
268
270 const TypeAndOrName &type_and_or_name, ValueObject &static_value) {
271 CompilerType static_type(static_value.GetCompilerType());
272 Flags static_type_flags(static_type.GetTypeInfo());
273
274 TypeAndOrName ret(type_and_or_name);
275 if (type_and_or_name.HasType()) {
276 // The type will always be the type of the dynamic object. If our parent's
277 // type was a pointer, then our type should be a pointer to the type of the
278 // dynamic object. If a reference, then the original type should be
279 // okay...
280 CompilerType orig_type = type_and_or_name.GetCompilerType();
281 CompilerType corrected_type = orig_type;
282 if (static_type_flags.AllSet(eTypeIsPointer))
283 corrected_type = orig_type.GetPointerType();
284 else if (static_type_flags.AllSet(eTypeIsReference))
285 corrected_type = orig_type.GetLValueReferenceType();
286 ret.SetCompilerType(corrected_type);
287 } else {
288 // If we are here we need to adjust our dynamic type name to include the
289 // correct & or * symbol
290 std::string corrected_name(type_and_or_name.GetName().GetCString());
291 if (static_type_flags.AllSet(eTypeIsPointer))
292 corrected_name.append(" *");
293 else if (static_type_flags.AllSet(eTypeIsReference))
294 corrected_name.append(" &");
295 // the parent type should be a correctly pointer'ed or referenc'ed type
296 ret.SetCompilerType(static_type);
297 ret.SetName(corrected_name.c_str());
298 }
299 return ret;
300}
301
302// Static Functions
305 lldb::LanguageType language) {
306 // FIXME: We have to check the process and make sure we actually know that
307 // this process supports
308 // the Itanium ABI.
309 if (language == eLanguageTypeC_plus_plus ||
310 language == eLanguageTypeC_plus_plus_03 ||
311 language == eLanguageTypeC_plus_plus_11 ||
312 language == eLanguageTypeC_plus_plus_14)
313 return new ItaniumABILanguageRuntime(process);
314 else
315 return nullptr;
316}
317
319public:
321 : CommandObjectParsed(interpreter, "demangle",
322 "Demangle a C++ mangled name.",
323 "language cplusplus demangle") {
325 CommandArgumentData index_arg;
326
327 // Define the first (and only) variant of this arg.
328 index_arg.arg_type = eArgTypeSymbol;
329 index_arg.arg_repetition = eArgRepeatPlus;
330
331 // There is only one variant this argument could be; put it into the
332 // argument entry.
333 arg.push_back(index_arg);
334
335 // Push the data for the first argument into the m_arguments vector.
336 m_arguments.push_back(arg);
337 }
338
340
341protected:
342 bool DoExecute(Args &command, CommandReturnObject &result) override {
343 bool demangled_any = false;
344 bool error_any = false;
345 for (auto &entry : command.entries()) {
346 if (entry.ref().empty())
347 continue;
348
349 // the actual Mangled class should be strict about this, but on the
350 // command line if you're copying mangled names out of 'nm' on Darwin,
351 // they will come out with an extra underscore - be willing to strip this
352 // on behalf of the user. This is the moral equivalent of the -_/-n
353 // options to c++filt
354 auto name = entry.ref();
355 if (name.startswith("__Z"))
356 name = name.drop_front();
357
358 Mangled mangled(name);
359 if (mangled.GuessLanguage() == lldb::eLanguageTypeC_plus_plus) {
360 ConstString demangled(mangled.GetDisplayDemangledName());
361 demangled_any = true;
362 result.AppendMessageWithFormat("%s ---> %s\n", entry.c_str(),
363 demangled.GetCString());
364 } else {
365 error_any = true;
366 result.AppendErrorWithFormat("%s is not a valid C++ mangled name\n",
367 entry.ref().str().c_str());
368 }
369 }
370
371 result.SetStatus(
372 error_any ? lldb::eReturnStatusFailed
375 return result.Succeeded();
376 }
377};
378
380public:
383 interpreter, "cplusplus",
384 "Commands for operating on the C++ language runtime.",
385 "cplusplus <subcommand> [<subcommand-options>]") {
386 LoadSubCommand(
387 "demangle",
388 CommandObjectSP(
390 }
391
393};
394
397 GetPluginNameStatic(), "Itanium ABI for the C++ language", CreateInstance,
398 [](CommandInterpreter &interpreter) -> lldb::CommandObjectSP {
399 return CommandObjectSP(
400 new CommandObjectMultiwordItaniumABI(interpreter));
401 });
402}
403
406}
407
409 const BreakpointSP &bkpt, bool catch_bp, bool throw_bp) {
410 return CreateExceptionResolver(bkpt, catch_bp, throw_bp, false);
411}
412
414 const BreakpointSP &bkpt, bool catch_bp, bool throw_bp,
415 bool for_expressions) {
416 // One complication here is that most users DON'T want to stop at
417 // __cxa_allocate_expression, but until we can do anything better with
418 // predicting unwinding the expression parser does. So we have two forms of
419 // the exception breakpoints, one for expressions that leaves out
420 // __cxa_allocate_exception, and one that includes it. The
421 // SetExceptionBreakpoints does the latter, the CreateExceptionBreakpoint in
422 // the runtime the former.
423 static const char *g_catch_name = "__cxa_begin_catch";
424 static const char *g_throw_name1 = "__cxa_throw";
425 static const char *g_throw_name2 = "__cxa_rethrow";
426 static const char *g_exception_throw_name = "__cxa_allocate_exception";
427 std::vector<const char *> exception_names;
428 exception_names.reserve(4);
429 if (catch_bp)
430 exception_names.push_back(g_catch_name);
431
432 if (throw_bp) {
433 exception_names.push_back(g_throw_name1);
434 exception_names.push_back(g_throw_name2);
435 }
436
437 if (for_expressions)
438 exception_names.push_back(g_exception_throw_name);
439
440 BreakpointResolverSP resolver_sp(new BreakpointResolverName(
441 bkpt, exception_names.data(), exception_names.size(),
442 eFunctionNameTypeBase, eLanguageTypeUnknown, 0, eLazyBoolNo));
443
444 return resolver_sp;
445}
446
448 Target &target = m_process->GetTarget();
449
450 FileSpecList filter_modules;
451 if (target.GetArchitecture().GetTriple().getVendor() == llvm::Triple::Apple) {
452 // Limit the number of modules that are searched for these breakpoints for
453 // Apple binaries.
454 filter_modules.EmplaceBack("libc++abi.dylib");
455 filter_modules.EmplaceBack("libSystem.B.dylib");
456 filter_modules.EmplaceBack("libc++abi.1.0.dylib");
457 filter_modules.EmplaceBack("libc++abi.1.dylib");
458 }
459 return target.GetSearchFilterForModuleList(&filter_modules);
460}
461
463 bool catch_bp, bool throw_bp, bool for_expressions, bool is_internal) {
464 Target &target = m_process->GetTarget();
465 FileSpecList filter_modules;
466 BreakpointResolverSP exception_resolver_sp =
467 CreateExceptionResolver(nullptr, catch_bp, throw_bp, for_expressions);
468 SearchFilterSP filter_sp(CreateExceptionSearchFilter());
469 const bool hardware = false;
470 const bool resolve_indirect_functions = false;
471 return target.CreateBreakpoint(filter_sp, exception_resolver_sp, is_internal,
472 hardware, resolve_indirect_functions);
473}
474
476 if (!m_process)
477 return;
478
479 const bool catch_bp = false;
480 const bool throw_bp = true;
481 const bool is_internal = true;
482 const bool for_expressions = true;
483
484 // For the exception breakpoints set by the Expression parser, we'll be a
485 // little more aggressive and stop at exception allocation as well.
486
488 m_cxx_exception_bp_sp->SetEnabled(true);
489 } else {
491 catch_bp, throw_bp, for_expressions, is_internal);
493 m_cxx_exception_bp_sp->SetBreakpointKind("c++ exception");
494 }
495}
496
498 if (!m_process)
499 return;
500
502 m_cxx_exception_bp_sp->SetEnabled(false);
503 }
504}
505
507 return m_cxx_exception_bp_sp && m_cxx_exception_bp_sp->IsEnabled();
508}
509
511 lldb::StopInfoSP stop_reason) {
512 if (!m_process)
513 return false;
514
515 if (!stop_reason || stop_reason->GetStopReason() != eStopReasonBreakpoint)
516 return false;
517
518 uint64_t break_site_id = stop_reason->GetValue();
520 break_site_id, m_cxx_exception_bp_sp->GetID());
521}
522
524 ThreadSP thread_sp) {
525 if (!thread_sp->SafeToCallFunctions())
526 return {};
527
528 TypeSystemClangSP scratch_ts_sp =
530 if (!scratch_ts_sp)
531 return {};
532
533 CompilerType voidstar =
534 scratch_ts_sp->GetBasicType(eBasicTypeVoid).GetPointerType();
535
536 DiagnosticManager diagnostics;
537 ExecutionContext exe_ctx;
539
540 options.SetUnwindOnError(true);
541 options.SetIgnoreBreakpoints(true);
542 options.SetStopOthers(true);
544 options.SetTryAllThreads(false);
545 thread_sp->CalculateExecutionContext(exe_ctx);
546
547 const ModuleList &modules = m_process->GetTarget().GetImages();
548 SymbolContextList contexts;
549 SymbolContext context;
550
552 ConstString("__cxa_current_exception_type"), eSymbolTypeCode, contexts);
553 contexts.GetContextAtIndex(0, context);
554 if (!context.symbol) {
555 return {};
556 }
557 Address addr = context.symbol->GetAddress();
558
560 FunctionCaller *function_caller =
562 eLanguageTypeC, voidstar, addr, ValueList(), "caller", error);
563
564 ExpressionResults func_call_ret;
565 Value results;
566 func_call_ret = function_caller->ExecuteFunction(exe_ctx, nullptr, options,
567 diagnostics, results);
568 if (func_call_ret != eExpressionCompleted || !error.Success()) {
569 return ValueObjectSP();
570 }
571
572 size_t ptr_size = m_process->GetAddressByteSize();
573 addr_t result_ptr = results.GetScalar().ULongLong(LLDB_INVALID_ADDRESS);
574 addr_t exception_addr =
575 m_process->ReadPointerFromMemory(result_ptr - ptr_size, error);
576
577 if (!error.Success()) {
578 return ValueObjectSP();
579 }
580
581 lldb_private::formatters::InferiorSizedWord exception_isw(exception_addr,
582 *m_process);
583 ValueObjectSP exception = ValueObject::CreateValueObjectFromData(
584 "exception", exception_isw.GetAsData(m_process->GetByteOrder()), exe_ctx,
585 voidstar);
586 ValueObjectSP dyn_exception
587 = exception->GetDynamicValue(eDynamicDontRunTarget);
588 // If we succeed in making a dynamic value, return that:
589 if (dyn_exception)
590 return dyn_exception;
591
592 return exception;
593}
594
596 const lldb_private::Address &vtable_addr) {
597 std::lock_guard<std::mutex> locker(m_dynamic_type_map_mutex);
598 DynamicTypeCache::const_iterator pos = m_dynamic_type_map.find(vtable_addr);
599 if (pos == m_dynamic_type_map.end())
600 return TypeAndOrName();
601 else
602 return pos->second;
603}
604
606 const lldb_private::Address &vtable_addr, const TypeAndOrName &type_info) {
607 std::lock_guard<std::mutex> locker(m_dynamic_type_map_mutex);
608 m_dynamic_type_map[vtable_addr] = type_info;
609}
static llvm::raw_ostream & error(Stream &strm)
static char ID
static const char * vtable_demangled_prefix
#define LLDB_LOGF(log,...)
Definition: Log.h:344
#define LLDB_PLUGIN_DEFINE_ADV(ClassName, PluginName)
Definition: PluginManager.h:25
bool DoExecute(Args &command, CommandReturnObject &result) override
CommandObjectMultiwordItaniumABI_Demangle(CommandInterpreter &interpreter)
~CommandObjectMultiwordItaniumABI_Demangle() override=default
~CommandObjectMultiwordItaniumABI() override=default
CommandObjectMultiwordItaniumABI(CommandInterpreter &interpreter)
A section + offset based address class.
Definition: Address.h:59
void SetRawAddress(lldb::addr_t addr)
Definition: Address.h:444
llvm::Triple & GetTriple()
Architecture triple accessor.
Definition: ArchSpec.h:463
A command line argument class.
Definition: Args.h:33
llvm::ArrayRef< ArgEntry > entries() const
Definition: Args.h:128
"lldb/Breakpoint/BreakpointResolverName.h" This class sets breakpoints on a given function name,...
bool BreakpointSiteContainsBreakpoint(lldb::break_id_t bp_site_id, lldb::break_id_t bp_id)
Returns whether the breakpoint site bp_site_id has bp_id.
std::vector< CommandArgumentData > CommandArgumentEntry
void SetStatus(lldb::ReturnStatus status)
void AppendErrorWithFormat(const char *format,...) __attribute__((format(printf
void AppendMessageWithFormat(const char *format,...) __attribute__((format(printf
Generic representation of a type in a programming language.
Definition: CompilerType.h:36
CompilerType GetPointerType() const
Return a new CompilerType that is a pointer to this type.
CompilerType GetLValueReferenceType() const
Return a new CompilerType that is a L value reference to this type if this type is valid and the type...
uint32_t GetTypeInfo(CompilerType *pointee_or_element_compiler_type=nullptr) const
A uniqued constant string class.
Definition: ConstString.h:39
const char * AsCString(const char *value_if_empty=nullptr) const
Get the string value as a C string.
Definition: ConstString.h:192
const char * GetCString() const
Get the string value as a C string.
Definition: ConstString.h:215
void SetUnwindOnError(bool unwind=false)
Definition: Target.h:324
void SetTryAllThreads(bool try_others=true)
Definition: Target.h:357
void SetTimeout(const Timeout< std::micro > &timeout)
Definition: Target.h:345
void SetStopOthers(bool stop_others=true)
Definition: Target.h:361
void SetIgnoreBreakpoints(bool ignore=false)
Definition: Target.h:328
"lldb/Target/ExecutionContext.h" A class that contains an execution context.
Process * GetProcessPtr() const
Returns a pointer to the process object.
A class to manage flags.
Definition: Flags.h:22
bool AllSet(ValueType mask) const
Test if all bits in mask are 1 in the current flags.
Definition: Flags.h:83
Encapsulates a function that can be called.
lldb::ExpressionResults ExecuteFunction(ExecutionContext &exe_ctx, lldb::addr_t *args_addr_ptr, const EvaluateExpressionOptions &options, DiagnosticManager &diagnostic_manager, Value &results)
Run the function this FunctionCaller was created with.
lldb::BreakpointResolverSP CreateExceptionResolver(const lldb::BreakpointSP &bkpt, bool catch_bp, bool throw_bp) override
bool GetDynamicTypeAndAddress(ValueObject &in_value, lldb::DynamicValueType use_dynamic, TypeAndOrName &class_type_or_name, Address &address, Value::ValueType &value_type) override
lldb::BreakpointSP CreateExceptionBreakpoint(bool catch_bp, bool throw_bp, bool for_expressions, bool is_internal)
static lldb_private::LanguageRuntime * CreateInstance(Process *process, lldb::LanguageType language)
lldb::SearchFilterSP CreateExceptionSearchFilter() override
TypeAndOrName FixUpDynamicType(const TypeAndOrName &type_and_or_name, ValueObject &static_value) override
TypeAndOrName GetTypeInfoFromVTableAddress(ValueObject &in_value, lldb::addr_t original_ptr, lldb::addr_t vtable_addr)
void SetDynamicTypeInfo(const lldb_private::Address &vtable_addr, const TypeAndOrName &type_info)
bool CouldHaveDynamicValue(ValueObject &in_value) override
bool ExceptionBreakpointsExplainStop(lldb::StopInfoSP stop_reason) override
TypeAndOrName GetDynamicTypeInfo(const lldb_private::Address &vtable_addr)
lldb::ValueObjectSP GetExceptionObjectForThread(lldb::ThreadSP thread_sp) override
A collection class for Module objects.
Definition: ModuleList.h:82
void FindTypes(Module *search_first, ConstString name, bool name_is_fully_qualified, size_t max_matches, llvm::DenseSet< SymbolFile * > &searched_symbol_files, TypeList &types) const
Find types by name.
Definition: ModuleList.cpp:569
void FindSymbolsWithNameAndType(ConstString name, lldb::SymbolType symbol_type, SymbolContextList &sc_list) const
Definition: ModuleList.cpp:509
uint32_t ResolveSymbolContextForAddress(const Address &so_addr, lldb::SymbolContextItem resolve_scope, SymbolContext &sc) const
Resolve the symbol context for the given address. (const Address&,uint32_t,SymbolContext&)
Definition: ModuleList.cpp:679
static bool RegisterPlugin(llvm::StringRef name, llvm::StringRef description, ABICreateInstance create_callback)
static bool UnregisterPlugin(ABICreateInstance create_callback)
std::chrono::seconds GetUtilityExpressionTimeout() const
Definition: Process.cpp:309
A plug-in interface definition class for debugging a process.
Definition: Process.h:343
int64_t ReadSignedIntegerFromMemory(lldb::addr_t load_addr, size_t byte_size, int64_t fail_value, Status &error)
Definition: Process.cpp:2077
lldb::ByteOrder GetByteOrder() const
Definition: Process.cpp:3379
lldb::addr_t ReadPointerFromMemory(lldb::addr_t vm_addr, Status &error)
Definition: Process.cpp:2088
uint32_t GetAddressByteSize() const
Definition: Process.cpp:3383
BreakpointSiteList & GetBreakpointSiteList()
Definition: Process.cpp:1565
Target & GetTarget()
Get the target object pointer for this module.
Definition: Process.h:1220
Process * m_process
Definition: Runtime.h:29
unsigned long long ULongLong(unsigned long long fail_value=0) const
Definition: Scalar.cpp:334
static lldb::TypeSystemClangSP GetForTarget(Target &target, std::optional< IsolatedASTKind > ast_kind=DefaultAST, bool create_on_demand=true)
Returns the scratch TypeSystemClang for the given target.
bool ResolveLoadAddress(lldb::addr_t load_addr, Address &so_addr, bool allow_section_end=false) const
An error handling class.
Definition: Status.h:44
Defines a list of symbol context objects.
bool GetContextAtIndex(size_t idx, SymbolContext &sc) const
Get accessor for a symbol context at index idx.
Defines a symbol context baton that can be handed other debug core functions.
Definition: SymbolContext.h:33
lldb::ModuleSP module_sp
The Module for a given query.
Symbol * symbol
The Symbol for a given query.
Mangled & GetMangled()
Definition: Symbol.h:145
Address GetAddress() const
Definition: Symbol.h:87
lldb::SearchFilterSP GetSearchFilterForModuleList(const FileSpecList *containingModuleList)
Definition: Target.cpp:549
SectionLoadList & GetSectionLoadList()
Definition: Target.h:1103
FunctionCaller * GetFunctionCallerForLanguage(lldb::LanguageType language, const CompilerType &return_type, const Address &function_address, const ValueList &arg_value_list, const char *name, Status &error)
Definition: Target.cpp:2447
lldb::BreakpointSP CreateBreakpoint(const FileSpecList *containingModules, const FileSpec &file, uint32_t line_no, uint32_t column, lldb::addr_t offset, LazyBool check_inlines, LazyBool skip_prologue, bool internal, bool request_hardware, LazyBool move_to_nearest_code)
Definition: Target.cpp:352
const ModuleList & GetImages() const
Get accessor for the images for this process.
Definition: Target.h:948
const ArchSpec & GetArchitecture() const
Definition: Target.h:990
Sometimes you can find the name of the type corresponding to an object, but we don't have debug infor...
Definition: Type.h:410
void SetName(ConstString type_name)
Definition: Type.cpp:784
CompilerType GetCompilerType() const
Definition: Type.h:424
ConstString GetName() const
Definition: Type.cpp:776
void SetCompilerType(CompilerType compiler_type)
Definition: Type.cpp:800
void SetTypeSP(lldb::TypeSP type_sp)
Definition: Type.cpp:792
bool HasType() const
Definition: Type.h:440
uint32_t GetSize() const
Definition: TypeList.cpp:60
bool Empty() const
Definition: TypeList.h:37
lldb::TypeSP GetTypeAtIndex(uint32_t idx)
Definition: TypeList.cpp:66
static bool AreTypesSame(CompilerType type1, CompilerType type2, bool ignore_qualifiers=false)
static bool IsCXXClassType(const CompilerType &type)
lldb::addr_t GetPointerValue(AddressType *address_type=nullptr)
CompilerType GetCompilerType()
Definition: ValueObject.h:352
virtual ConstString GetTypeName()
Definition: ValueObject.h:365
static lldb::ValueObjectSP CreateValueObjectFromData(llvm::StringRef name, const DataExtractor &data, const ExecutionContext &exe_ctx, CompilerType type)
const ExecutionContextRef & GetExecutionContextRef() const
Definition: ValueObject.h:330
const Scalar & GetScalar() const
Definition: Value.h:112
ValueType
Type that describes Value::m_value.
Definition: Value.h:41
@ Scalar
A raw scalar value.
#define LLDB_INVALID_ADDRESS
Definition: lldb-defines.h:74
#define UINT32_MAX
Definition: lldb-defines.h:19
A class that represents a running process on the host machine.
Definition: SBAttachInfo.h:14
Log * GetLog(Cat mask)
Retrieve the Log object for the channel associated with the given log enum.
Definition: Log.h:309
Definition: SBAddress.h:15
LanguageType
Programming language type.
@ eLanguageTypeC_plus_plus_14
ISO C++:2014.
@ eLanguageTypeC_plus_plus_03
ISO C++:2003.
@ eLanguageTypeUnknown
Unknown or invalid language value.
@ eLanguageTypeC_plus_plus_11
ISO C++:2011.
@ eLanguageTypeC
Non-standardized C, such as K&R.
@ eLanguageTypeC_plus_plus
ISO C++:1998.
ExpressionResults
The results of expression evaluation.
@ eExpressionCompleted
@ eReturnStatusFailed
@ eReturnStatusSuccessFinishResult
@ eReturnStatusSuccessFinishNoResult
uint64_t addr_t
Definition: lldb-types.h:79
@ eStopReasonBreakpoint
@ eDynamicDontRunTarget
Used to build individual command argument lists.
Definition: CommandObject.h:93
DataExtractor GetAsData(lldb::ByteOrder byte_order=lldb::eByteOrderInvalid) const