1 //===-- Module.cpp ----------------------------------------------*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 #include "lldb/Core/Module.h"
12 #include "lldb/Core/AddressRange.h"
13 #include "lldb/Core/AddressResolverFileLine.h"
14 #include "lldb/Core/Debugger.h"
15 #include "lldb/Core/FileSpecList.h"
16 #include "lldb/Core/Mangled.h"
17 #include "lldb/Core/ModuleSpec.h"
18 #include "lldb/Core/SearchFilter.h"
19 #include "lldb/Core/Section.h"
20 #include "lldb/Host/FileSystem.h"
21 #include "lldb/Host/Host.h"
22 #include "lldb/Interpreter/CommandInterpreter.h"
23 #include "lldb/Interpreter/ScriptInterpreter.h"
24 #include "lldb/Symbol/CompileUnit.h"
25 #include "lldb/Symbol/Function.h"
26 #include "lldb/Symbol/ObjectFile.h"
27 #include "lldb/Symbol/Symbol.h"
28 #include "lldb/Symbol/SymbolContext.h"
29 #include "lldb/Symbol/SymbolFile.h"
30 #include "lldb/Symbol/SymbolVendor.h"
31 #include "lldb/Symbol/Symtab.h"
32 #include "lldb/Symbol/Type.h"
33 #include "lldb/Symbol/TypeList.h"
34 #include "lldb/Symbol/TypeMap.h"
35 #include "lldb/Symbol/TypeSystem.h"
36 #include "lldb/Target/Language.h"
37 #include "lldb/Target/Platform.h"
38 #include "lldb/Target/Process.h"
39 #include "lldb/Target/Target.h"
40 #include "lldb/Utility/DataBufferHeap.h"
41 #include "lldb/Utility/LLDBAssert.h"
42 #include "lldb/Utility/Log.h"
43 #include "lldb/Utility/Logging.h"
44 #include "lldb/Utility/RegularExpression.h"
45 #include "lldb/Utility/Status.h"
46 #include "lldb/Utility/Stream.h"
47 #include "lldb/Utility/StreamString.h"
48 #include "lldb/Utility/Timer.h"
51 #include "lldb/Host/windows/PosixApi.h"
54 #include "Plugins/Language/CPlusPlus/CPlusPlusLanguage.h"
55 #include "Plugins/Language/ObjC/ObjCLanguage.h"
57 #include "llvm/ADT/STLExtras.h"
58 #include "llvm/Support/Compiler.h"
59 #include "llvm/Support/FileSystem.h"
60 #include "llvm/Support/Signals.h"
61 #include "llvm/Support/raw_ostream.h"
69 #include <type_traits>
72 namespace lldb_private {
73 class CompilerDeclContext;
75 namespace lldb_private {
80 using namespace lldb_private;
82 // Shared pointers to modules track module lifetimes in targets and in the
83 // global module, but this collection will track all module objects that are
85 typedef std::vector<Module *> ModuleCollection;
87 static ModuleCollection &GetModuleCollection() {
88 // This module collection needs to live past any module, so we could either
89 // make it a shared pointer in each module or just leak is. Since it is only
90 // an empty vector by the time all the modules have gone away, we just leak
91 // it for now. If we decide this is a big problem we can introduce a
92 // Finalize method that will tear everything down in a predictable order.
94 static ModuleCollection *g_module_collection = nullptr;
95 if (g_module_collection == nullptr)
96 g_module_collection = new ModuleCollection();
98 return *g_module_collection;
101 std::recursive_mutex &Module::GetAllocationModuleCollectionMutex() {
102 // NOTE: The mutex below must be leaked since the global module list in
103 // the ModuleList class will get torn at some point, and we can't know if it
104 // will tear itself down before the "g_module_collection_mutex" below will.
105 // So we leak a Mutex object below to safeguard against that
107 static std::recursive_mutex *g_module_collection_mutex = nullptr;
108 if (g_module_collection_mutex == nullptr)
109 g_module_collection_mutex = new std::recursive_mutex; // NOTE: known leak
110 return *g_module_collection_mutex;
113 size_t Module::GetNumberAllocatedModules() {
114 std::lock_guard<std::recursive_mutex> guard(
115 GetAllocationModuleCollectionMutex());
116 return GetModuleCollection().size();
119 Module *Module::GetAllocatedModuleAtIndex(size_t idx) {
120 std::lock_guard<std::recursive_mutex> guard(
121 GetAllocationModuleCollectionMutex());
122 ModuleCollection &modules = GetModuleCollection();
123 if (idx < modules.size())
128 Module::Module(const ModuleSpec &module_spec)
129 : m_object_offset(0), m_file_has_changed(false),
130 m_first_file_changed_log(false) {
131 // Scope for locker below...
133 std::lock_guard<std::recursive_mutex> guard(
134 GetAllocationModuleCollectionMutex());
135 GetModuleCollection().push_back(this);
138 Log *log(lldb_private::GetLogIfAnyCategoriesSet(LIBLLDB_LOG_OBJECT |
139 LIBLLDB_LOG_MODULES));
141 log->Printf("%p Module::Module((%s) '%s%s%s%s')", static_cast<void *>(this),
142 module_spec.GetArchitecture().GetArchitectureName(),
143 module_spec.GetFileSpec().GetPath().c_str(),
144 module_spec.GetObjectName().IsEmpty() ? "" : "(",
145 module_spec.GetObjectName().IsEmpty()
147 : module_spec.GetObjectName().AsCString(""),
148 module_spec.GetObjectName().IsEmpty() ? "" : ")");
150 // First extract all module specifications from the file using the local file
151 // path. If there are no specifications, then don't fill anything in
152 ModuleSpecList modules_specs;
153 if (ObjectFile::GetModuleSpecifications(module_spec.GetFileSpec(), 0, 0,
157 // Now make sure that one of the module specifications matches what we just
158 // extract. We might have a module specification that specifies a file
159 // "/usr/lib/dyld" with UUID XXX, but we might have a local version of
160 // "/usr/lib/dyld" that has
161 // UUID YYY and we don't want those to match. If they don't match, just don't
162 // fill any ivars in so we don't accidentally grab the wrong file later since
163 // they don't match...
164 ModuleSpec matching_module_spec;
165 if (!modules_specs.FindMatchingModuleSpec(module_spec,
166 matching_module_spec)) {
168 log->Printf("Found local object file but the specs didn't match");
173 if (module_spec.GetFileSpec())
174 m_mod_time = FileSystem::Instance().GetModificationTime(module_spec.GetFileSpec());
175 else if (matching_module_spec.GetFileSpec())
177 FileSystem::Instance().GetModificationTime(matching_module_spec.GetFileSpec());
179 // Copy the architecture from the actual spec if we got one back, else use
180 // the one that was specified
181 if (matching_module_spec.GetArchitecture().IsValid())
182 m_arch = matching_module_spec.GetArchitecture();
183 else if (module_spec.GetArchitecture().IsValid())
184 m_arch = module_spec.GetArchitecture();
186 // Copy the file spec over and use the specified one (if there was one) so we
187 // don't use a path that might have gotten resolved a path in
188 // 'matching_module_spec'
189 if (module_spec.GetFileSpec())
190 m_file = module_spec.GetFileSpec();
191 else if (matching_module_spec.GetFileSpec())
192 m_file = matching_module_spec.GetFileSpec();
194 // Copy the platform file spec over
195 if (module_spec.GetPlatformFileSpec())
196 m_platform_file = module_spec.GetPlatformFileSpec();
197 else if (matching_module_spec.GetPlatformFileSpec())
198 m_platform_file = matching_module_spec.GetPlatformFileSpec();
200 // Copy the symbol file spec over
201 if (module_spec.GetSymbolFileSpec())
202 m_symfile_spec = module_spec.GetSymbolFileSpec();
203 else if (matching_module_spec.GetSymbolFileSpec())
204 m_symfile_spec = matching_module_spec.GetSymbolFileSpec();
206 // Copy the object name over
207 if (matching_module_spec.GetObjectName())
208 m_object_name = matching_module_spec.GetObjectName();
210 m_object_name = module_spec.GetObjectName();
212 // Always trust the object offset (file offset) and object modification time
213 // (for mod time in a BSD static archive) of from the matching module
215 m_object_offset = matching_module_spec.GetObjectOffset();
216 m_object_mod_time = matching_module_spec.GetObjectModificationTime();
219 Module::Module(const FileSpec &file_spec, const ArchSpec &arch,
220 const ConstString *object_name, lldb::offset_t object_offset,
221 const llvm::sys::TimePoint<> &object_mod_time)
222 : m_mod_time(FileSystem::Instance().GetModificationTime(file_spec)), m_arch(arch),
223 m_file(file_spec), m_object_offset(object_offset),
224 m_object_mod_time(object_mod_time), m_file_has_changed(false),
225 m_first_file_changed_log(false) {
226 // Scope for locker below...
228 std::lock_guard<std::recursive_mutex> guard(
229 GetAllocationModuleCollectionMutex());
230 GetModuleCollection().push_back(this);
234 m_object_name = *object_name;
236 Log *log(lldb_private::GetLogIfAnyCategoriesSet(LIBLLDB_LOG_OBJECT |
237 LIBLLDB_LOG_MODULES));
239 log->Printf("%p Module::Module((%s) '%s%s%s%s')", static_cast<void *>(this),
240 m_arch.GetArchitectureName(), m_file.GetPath().c_str(),
241 m_object_name.IsEmpty() ? "" : "(",
242 m_object_name.IsEmpty() ? "" : m_object_name.AsCString(""),
243 m_object_name.IsEmpty() ? "" : ")");
247 : m_object_offset(0), m_file_has_changed(false),
248 m_first_file_changed_log(false) {
249 std::lock_guard<std::recursive_mutex> guard(
250 GetAllocationModuleCollectionMutex());
251 GetModuleCollection().push_back(this);
255 // Lock our module down while we tear everything down to make sure we don't
256 // get any access to the module while it is being destroyed
257 std::lock_guard<std::recursive_mutex> guard(m_mutex);
258 // Scope for locker below...
260 std::lock_guard<std::recursive_mutex> guard(
261 GetAllocationModuleCollectionMutex());
262 ModuleCollection &modules = GetModuleCollection();
263 ModuleCollection::iterator end = modules.end();
264 ModuleCollection::iterator pos = std::find(modules.begin(), end, this);
268 Log *log(lldb_private::GetLogIfAnyCategoriesSet(LIBLLDB_LOG_OBJECT |
269 LIBLLDB_LOG_MODULES));
271 log->Printf("%p Module::~Module((%s) '%s%s%s%s')",
272 static_cast<void *>(this), m_arch.GetArchitectureName(),
273 m_file.GetPath().c_str(), m_object_name.IsEmpty() ? "" : "(",
274 m_object_name.IsEmpty() ? "" : m_object_name.AsCString(""),
275 m_object_name.IsEmpty() ? "" : ")");
276 // Release any auto pointers before we start tearing down our member
277 // variables since the object file and symbol files might need to make
278 // function calls back into this module object. The ordering is important
279 // here because symbol files can require the module object file. So we tear
280 // down the symbol file first, then the object file.
281 m_sections_ap.reset();
282 m_symfile_ap.reset();
283 m_objfile_sp.reset();
286 ObjectFile *Module::GetMemoryObjectFile(const lldb::ProcessSP &process_sp,
287 lldb::addr_t header_addr, Status &error,
288 size_t size_to_read) {
290 error.SetErrorString("object file already exists");
292 std::lock_guard<std::recursive_mutex> guard(m_mutex);
294 m_did_load_objfile = true;
295 auto data_ap = llvm::make_unique<DataBufferHeap>(size_to_read, 0);
296 Status readmem_error;
297 const size_t bytes_read =
298 process_sp->ReadMemory(header_addr, data_ap->GetBytes(),
299 data_ap->GetByteSize(), readmem_error);
300 if (bytes_read == size_to_read) {
301 DataBufferSP data_sp(data_ap.release());
302 m_objfile_sp = ObjectFile::FindPlugin(shared_from_this(), process_sp,
303 header_addr, data_sp);
306 s.Printf("0x%16.16" PRIx64, header_addr);
307 m_object_name.SetString(s.GetString());
309 // Once we get the object file, update our module with the object
310 // file's architecture since it might differ in vendor/os if some
311 // parts were unknown.
312 m_arch = m_objfile_sp->GetArchitecture();
314 error.SetErrorString("unable to find suitable object file plug-in");
317 error.SetErrorStringWithFormat("unable to read header from memory: %s",
318 readmem_error.AsCString());
321 error.SetErrorString("invalid process");
324 return m_objfile_sp.get();
327 const lldb_private::UUID &Module::GetUUID() {
328 if (!m_did_set_uuid.load()) {
329 std::lock_guard<std::recursive_mutex> guard(m_mutex);
330 if (!m_did_set_uuid.load()) {
331 ObjectFile *obj_file = GetObjectFile();
333 if (obj_file != nullptr) {
334 obj_file->GetUUID(&m_uuid);
335 m_did_set_uuid = true;
342 void Module::SetUUID(const lldb_private::UUID &uuid) {
343 std::lock_guard<std::recursive_mutex> guard(m_mutex);
344 if (!m_did_set_uuid) {
346 m_did_set_uuid = true;
348 lldbassert(0 && "Attempting to overwrite the existing module UUID");
352 TypeSystem *Module::GetTypeSystemForLanguage(LanguageType language) {
353 return m_type_system_map.GetTypeSystemForLanguage(language, this, true);
356 void Module::ParseAllDebugSymbols() {
357 std::lock_guard<std::recursive_mutex> guard(m_mutex);
358 size_t num_comp_units = GetNumCompileUnits();
359 if (num_comp_units == 0)
363 sc.module_sp = shared_from_this();
364 SymbolVendor *symbols = GetSymbolVendor();
366 for (size_t cu_idx = 0; cu_idx < num_comp_units; cu_idx++) {
367 sc.comp_unit = symbols->GetCompileUnitAtIndex(cu_idx).get();
371 symbols->ParseVariablesForContext(sc);
373 symbols->ParseFunctions(*sc.comp_unit);
375 sc.comp_unit->ForeachFunction([&sc, &symbols](const FunctionSP &f) {
376 symbols->ParseBlocksRecursive(*f);
378 // Parse the variables for this function and all its blocks
379 sc.function = f.get();
380 symbols->ParseVariablesForContext(sc);
384 // Parse all types for this compile unit
385 symbols->ParseTypes(*sc.comp_unit);
389 void Module::CalculateSymbolContext(SymbolContext *sc) {
390 sc->module_sp = shared_from_this();
393 ModuleSP Module::CalculateSymbolContextModule() { return shared_from_this(); }
395 void Module::DumpSymbolContext(Stream *s) {
396 s->Printf(", Module{%p}", static_cast<void *>(this));
399 size_t Module::GetNumCompileUnits() {
400 std::lock_guard<std::recursive_mutex> guard(m_mutex);
401 static Timer::Category func_cat(LLVM_PRETTY_FUNCTION);
402 Timer scoped_timer(func_cat, "Module::GetNumCompileUnits (module = %p)",
403 static_cast<void *>(this));
404 SymbolVendor *symbols = GetSymbolVendor();
406 return symbols->GetNumCompileUnits();
410 CompUnitSP Module::GetCompileUnitAtIndex(size_t index) {
411 std::lock_guard<std::recursive_mutex> guard(m_mutex);
412 size_t num_comp_units = GetNumCompileUnits();
415 if (index < num_comp_units) {
416 SymbolVendor *symbols = GetSymbolVendor();
418 cu_sp = symbols->GetCompileUnitAtIndex(index);
423 bool Module::ResolveFileAddress(lldb::addr_t vm_addr, Address &so_addr) {
424 std::lock_guard<std::recursive_mutex> guard(m_mutex);
425 static Timer::Category func_cat(LLVM_PRETTY_FUNCTION);
426 Timer scoped_timer(func_cat,
427 "Module::ResolveFileAddress (vm_addr = 0x%" PRIx64 ")",
429 SectionList *section_list = GetSectionList();
431 return so_addr.ResolveAddressUsingFileSections(vm_addr, section_list);
435 uint32_t Module::ResolveSymbolContextForAddress(
436 const Address &so_addr, lldb::SymbolContextItem resolve_scope,
437 SymbolContext &sc, bool resolve_tail_call_address) {
438 std::lock_guard<std::recursive_mutex> guard(m_mutex);
439 uint32_t resolved_flags = 0;
441 // Clear the result symbol context in case we don't find anything, but don't
445 // Get the section from the section/offset address.
446 SectionSP section_sp(so_addr.GetSection());
448 // Make sure the section matches this module before we try and match anything
449 if (section_sp && section_sp->GetModule().get() == this) {
450 // If the section offset based address resolved itself, then this is the
452 sc.module_sp = shared_from_this();
453 resolved_flags |= eSymbolContextModule;
455 SymbolVendor *sym_vendor = GetSymbolVendor();
457 return resolved_flags;
459 // Resolve the compile unit, function, block, line table or line entry if
461 if (resolve_scope & eSymbolContextCompUnit ||
462 resolve_scope & eSymbolContextFunction ||
463 resolve_scope & eSymbolContextBlock ||
464 resolve_scope & eSymbolContextLineEntry ||
465 resolve_scope & eSymbolContextVariable) {
467 sym_vendor->ResolveSymbolContext(so_addr, resolve_scope, sc);
470 // Resolve the symbol if requested, but don't re-look it up if we've
472 if (resolve_scope & eSymbolContextSymbol &&
473 !(resolved_flags & eSymbolContextSymbol)) {
474 Symtab *symtab = sym_vendor->GetSymtab();
475 if (symtab && so_addr.IsSectionOffset()) {
476 Symbol *matching_symbol = nullptr;
478 symtab->ForEachSymbolContainingFileAddress(
479 so_addr.GetFileAddress(),
480 [&matching_symbol](Symbol *symbol) -> bool {
481 if (symbol->GetType() != eSymbolTypeInvalid) {
482 matching_symbol = symbol;
483 return false; // Stop iterating
485 return true; // Keep iterating
487 sc.symbol = matching_symbol;
488 if (!sc.symbol && resolve_scope & eSymbolContextFunction &&
489 !(resolved_flags & eSymbolContextFunction)) {
490 bool verify_unique = false; // No need to check again since
491 // ResolveSymbolContext failed to find a
492 // symbol at this address.
493 if (ObjectFile *obj_file = sc.module_sp->GetObjectFile())
495 obj_file->ResolveSymbolForAddress(so_addr, verify_unique);
499 if (sc.symbol->IsSynthetic()) {
500 // We have a synthetic symbol so lets check if the object file from
501 // the symbol file in the symbol vendor is different than the
502 // object file for the module, and if so search its symbol table to
503 // see if we can come up with a better symbol. For example dSYM
504 // files on MacOSX have an unstripped symbol table inside of them.
505 ObjectFile *symtab_objfile = symtab->GetObjectFile();
506 if (symtab_objfile && symtab_objfile->IsStripped()) {
507 SymbolFile *symfile = sym_vendor->GetSymbolFile();
509 ObjectFile *symfile_objfile = symfile->GetObjectFile();
510 if (symfile_objfile != symtab_objfile) {
511 Symtab *symfile_symtab = symfile_objfile->GetSymtab();
512 if (symfile_symtab) {
514 symfile_symtab->FindSymbolContainingFileAddress(
515 so_addr.GetFileAddress());
516 if (symbol && !symbol->IsSynthetic()) {
524 resolved_flags |= eSymbolContextSymbol;
529 // For function symbols, so_addr may be off by one. This is a convention
530 // consistent with FDE row indices in eh_frame sections, but requires extra
531 // logic here to permit symbol lookup for disassembly and unwind.
532 if (resolve_scope & eSymbolContextSymbol &&
533 !(resolved_flags & eSymbolContextSymbol) && resolve_tail_call_address &&
534 so_addr.IsSectionOffset()) {
535 Address previous_addr = so_addr;
536 previous_addr.Slide(-1);
538 bool do_resolve_tail_call_address = false; // prevent recursion
539 const uint32_t flags = ResolveSymbolContextForAddress(
540 previous_addr, resolve_scope, sc, do_resolve_tail_call_address);
541 if (flags & eSymbolContextSymbol) {
542 AddressRange addr_range;
543 if (sc.GetAddressRange(eSymbolContextFunction | eSymbolContextSymbol, 0,
544 false, addr_range)) {
545 if (addr_range.GetBaseAddress().GetSection() ==
546 so_addr.GetSection()) {
547 // If the requested address is one past the address range of a
548 // function (i.e. a tail call), or the decremented address is the
549 // start of a function (i.e. some forms of trampoline), indicate
550 // that the symbol has been resolved.
551 if (so_addr.GetOffset() ==
552 addr_range.GetBaseAddress().GetOffset() ||
553 so_addr.GetOffset() ==
554 addr_range.GetBaseAddress().GetOffset() +
555 addr_range.GetByteSize()) {
556 resolved_flags |= flags;
560 nullptr; // Don't trust the symbol if the sections didn't match.
566 return resolved_flags;
569 uint32_t Module::ResolveSymbolContextForFilePath(
570 const char *file_path, uint32_t line, bool check_inlines,
571 lldb::SymbolContextItem resolve_scope, SymbolContextList &sc_list) {
572 FileSpec file_spec(file_path);
573 return ResolveSymbolContextsForFileSpec(file_spec, line, check_inlines,
574 resolve_scope, sc_list);
577 uint32_t Module::ResolveSymbolContextsForFileSpec(
578 const FileSpec &file_spec, uint32_t line, bool check_inlines,
579 lldb::SymbolContextItem resolve_scope, SymbolContextList &sc_list) {
580 std::lock_guard<std::recursive_mutex> guard(m_mutex);
581 static Timer::Category func_cat(LLVM_PRETTY_FUNCTION);
582 Timer scoped_timer(func_cat,
583 "Module::ResolveSymbolContextForFilePath (%s:%u, "
584 "check_inlines = %s, resolve_scope = 0x%8.8x)",
585 file_spec.GetPath().c_str(), line,
586 check_inlines ? "yes" : "no", resolve_scope);
588 const uint32_t initial_count = sc_list.GetSize();
590 SymbolVendor *symbols = GetSymbolVendor();
592 symbols->ResolveSymbolContext(file_spec, line, check_inlines, resolve_scope,
595 return sc_list.GetSize() - initial_count;
598 size_t Module::FindGlobalVariables(const ConstString &name,
599 const CompilerDeclContext *parent_decl_ctx,
601 VariableList &variables) {
602 SymbolVendor *symbols = GetSymbolVendor();
604 return symbols->FindGlobalVariables(name, parent_decl_ctx, max_matches,
609 size_t Module::FindGlobalVariables(const RegularExpression ®ex,
611 VariableList &variables) {
612 SymbolVendor *symbols = GetSymbolVendor();
614 return symbols->FindGlobalVariables(regex, max_matches, variables);
618 size_t Module::FindCompileUnits(const FileSpec &path, bool append,
619 SymbolContextList &sc_list) {
623 const size_t start_size = sc_list.GetSize();
624 const size_t num_compile_units = GetNumCompileUnits();
626 sc.module_sp = shared_from_this();
627 const bool compare_directory = (bool)path.GetDirectory();
628 for (size_t i = 0; i < num_compile_units; ++i) {
629 sc.comp_unit = GetCompileUnitAtIndex(i).get();
631 if (FileSpec::Equal(*sc.comp_unit, path, compare_directory))
635 return sc_list.GetSize() - start_size;
638 Module::LookupInfo::LookupInfo(const ConstString &name,
639 FunctionNameType name_type_mask,
640 LanguageType language)
641 : m_name(name), m_lookup_name(), m_language(language),
642 m_name_type_mask(eFunctionNameTypeNone),
643 m_match_name_after_lookup(false) {
644 const char *name_cstr = name.GetCString();
645 llvm::StringRef basename;
646 llvm::StringRef context;
648 if (name_type_mask & eFunctionNameTypeAuto) {
649 if (CPlusPlusLanguage::IsCPPMangledName(name_cstr))
650 m_name_type_mask = eFunctionNameTypeFull;
651 else if ((language == eLanguageTypeUnknown ||
652 Language::LanguageIsObjC(language)) &&
653 ObjCLanguage::IsPossibleObjCMethodName(name_cstr))
654 m_name_type_mask = eFunctionNameTypeFull;
655 else if (Language::LanguageIsC(language)) {
656 m_name_type_mask = eFunctionNameTypeFull;
658 if ((language == eLanguageTypeUnknown ||
659 Language::LanguageIsObjC(language)) &&
660 ObjCLanguage::IsPossibleObjCSelector(name_cstr))
661 m_name_type_mask |= eFunctionNameTypeSelector;
663 CPlusPlusLanguage::MethodName cpp_method(name);
664 basename = cpp_method.GetBasename();
665 if (basename.empty()) {
666 if (CPlusPlusLanguage::ExtractContextAndIdentifier(name_cstr, context,
668 m_name_type_mask |= (eFunctionNameTypeMethod | eFunctionNameTypeBase);
670 m_name_type_mask |= eFunctionNameTypeFull;
672 m_name_type_mask |= (eFunctionNameTypeMethod | eFunctionNameTypeBase);
676 m_name_type_mask = name_type_mask;
677 if (name_type_mask & eFunctionNameTypeMethod ||
678 name_type_mask & eFunctionNameTypeBase) {
679 // If they've asked for a CPP method or function name and it can't be
680 // that, we don't even need to search for CPP methods or names.
681 CPlusPlusLanguage::MethodName cpp_method(name);
682 if (cpp_method.IsValid()) {
683 basename = cpp_method.GetBasename();
685 if (!cpp_method.GetQualifiers().empty()) {
686 // There is a "const" or other qualifier following the end of the
687 // function parens, this can't be a eFunctionNameTypeBase
688 m_name_type_mask &= ~(eFunctionNameTypeBase);
689 if (m_name_type_mask == eFunctionNameTypeNone)
693 // If the CPP method parser didn't manage to chop this up, try to fill
694 // in the base name if we can. If a::b::c is passed in, we need to just
695 // look up "c", and then we'll filter the result later.
696 CPlusPlusLanguage::ExtractContextAndIdentifier(name_cstr, context,
701 if (name_type_mask & eFunctionNameTypeSelector) {
702 if (!ObjCLanguage::IsPossibleObjCSelector(name_cstr)) {
703 m_name_type_mask &= ~(eFunctionNameTypeSelector);
704 if (m_name_type_mask == eFunctionNameTypeNone)
709 // Still try and get a basename in case someone specifies a name type mask
710 // of eFunctionNameTypeFull and a name like "A::func"
711 if (basename.empty()) {
712 if (name_type_mask & eFunctionNameTypeFull &&
713 !CPlusPlusLanguage::IsCPPMangledName(name_cstr)) {
714 CPlusPlusLanguage::MethodName cpp_method(name);
715 basename = cpp_method.GetBasename();
716 if (basename.empty())
717 CPlusPlusLanguage::ExtractContextAndIdentifier(name_cstr, context,
723 if (!basename.empty()) {
724 // The name supplied was a partial C++ path like "a::count". In this case
725 // we want to do a lookup on the basename "count" and then make sure any
726 // matching results contain "a::count" so that it would match "b::a::count"
727 // and "a::count". This is why we set "match_name_after_lookup" to true
728 m_lookup_name.SetString(basename);
729 m_match_name_after_lookup = true;
731 // The name is already correct, just use the exact name as supplied, and we
732 // won't need to check if any matches contain "name"
733 m_lookup_name = name;
734 m_match_name_after_lookup = false;
738 void Module::LookupInfo::Prune(SymbolContextList &sc_list,
739 size_t start_idx) const {
740 if (m_match_name_after_lookup && m_name) {
742 size_t i = start_idx;
743 while (i < sc_list.GetSize()) {
744 if (!sc_list.GetContextAtIndex(i, sc))
746 ConstString full_name(sc.GetFunctionName());
748 ::strstr(full_name.GetCString(), m_name.GetCString()) == nullptr) {
749 sc_list.RemoveContextAtIndex(i);
756 // If we have only full name matches we might have tried to set breakpoint on
757 // "func" and specified eFunctionNameTypeFull, but we might have found
758 // "a::func()", "a::b::func()", "c::func()", "func()" and "func". Only
759 // "func()" and "func" should end up matching.
760 if (m_name_type_mask == eFunctionNameTypeFull) {
762 size_t i = start_idx;
763 while (i < sc_list.GetSize()) {
764 if (!sc_list.GetContextAtIndex(i, sc))
766 // Make sure the mangled and demangled names don't match before we try to
768 ConstString mangled_name(sc.GetFunctionName(Mangled::ePreferMangled));
769 ConstString full_name(sc.GetFunctionName());
770 if (mangled_name != m_name && full_name != m_name)
772 CPlusPlusLanguage::MethodName cpp_method(full_name);
773 if (cpp_method.IsValid()) {
774 if (cpp_method.GetContext().empty()) {
775 if (cpp_method.GetBasename().compare(m_name.GetStringRef()) != 0) {
776 sc_list.RemoveContextAtIndex(i);
780 std::string qualified_name;
781 llvm::StringRef anon_prefix("(anonymous namespace)");
782 if (cpp_method.GetContext() == anon_prefix)
783 qualified_name = cpp_method.GetBasename().str();
785 qualified_name = cpp_method.GetScopeQualifiedName();
786 if (qualified_name != m_name.GetCString()) {
787 sc_list.RemoveContextAtIndex(i);
798 size_t Module::FindFunctions(const ConstString &name,
799 const CompilerDeclContext *parent_decl_ctx,
800 FunctionNameType name_type_mask,
801 bool include_symbols, bool include_inlines,
802 bool append, SymbolContextList &sc_list) {
806 const size_t old_size = sc_list.GetSize();
808 // Find all the functions (not symbols, but debug information functions...
809 SymbolVendor *symbols = GetSymbolVendor();
811 if (name_type_mask & eFunctionNameTypeAuto) {
812 LookupInfo lookup_info(name, name_type_mask, eLanguageTypeUnknown);
815 symbols->FindFunctions(lookup_info.GetLookupName(), parent_decl_ctx,
816 lookup_info.GetNameTypeMask(), include_inlines,
819 // Now check our symbol table for symbols that are code symbols if
821 if (include_symbols) {
822 Symtab *symtab = symbols->GetSymtab();
824 symtab->FindFunctionSymbols(lookup_info.GetLookupName(),
825 lookup_info.GetNameTypeMask(), sc_list);
829 const size_t new_size = sc_list.GetSize();
831 if (old_size < new_size)
832 lookup_info.Prune(sc_list, old_size);
835 symbols->FindFunctions(name, parent_decl_ctx, name_type_mask,
836 include_inlines, append, sc_list);
838 // Now check our symbol table for symbols that are code symbols if
840 if (include_symbols) {
841 Symtab *symtab = symbols->GetSymtab();
843 symtab->FindFunctionSymbols(name, name_type_mask, sc_list);
848 return sc_list.GetSize() - old_size;
851 size_t Module::FindFunctions(const RegularExpression ®ex,
852 bool include_symbols, bool include_inlines,
853 bool append, SymbolContextList &sc_list) {
857 const size_t start_size = sc_list.GetSize();
859 SymbolVendor *symbols = GetSymbolVendor();
861 symbols->FindFunctions(regex, include_inlines, append, sc_list);
863 // Now check our symbol table for symbols that are code symbols if
865 if (include_symbols) {
866 Symtab *symtab = symbols->GetSymtab();
868 std::vector<uint32_t> symbol_indexes;
869 symtab->AppendSymbolIndexesMatchingRegExAndType(
870 regex, eSymbolTypeAny, Symtab::eDebugAny, Symtab::eVisibilityAny,
872 const size_t num_matches = symbol_indexes.size();
874 SymbolContext sc(this);
875 const size_t end_functions_added_index = sc_list.GetSize();
876 size_t num_functions_added_to_sc_list =
877 end_functions_added_index - start_size;
878 if (num_functions_added_to_sc_list == 0) {
879 // No functions were added, just symbols, so we can just append
881 for (size_t i = 0; i < num_matches; ++i) {
882 sc.symbol = symtab->SymbolAtIndex(symbol_indexes[i]);
883 SymbolType sym_type = sc.symbol->GetType();
884 if (sc.symbol && (sym_type == eSymbolTypeCode ||
885 sym_type == eSymbolTypeResolver))
889 typedef std::map<lldb::addr_t, uint32_t> FileAddrToIndexMap;
890 FileAddrToIndexMap file_addr_to_index;
891 for (size_t i = start_size; i < end_functions_added_index; ++i) {
892 const SymbolContext &sc = sc_list[i];
895 file_addr_to_index[sc.function->GetAddressRange()
897 .GetFileAddress()] = i;
900 FileAddrToIndexMap::const_iterator end = file_addr_to_index.end();
901 // Functions were added so we need to merge symbols into any
902 // existing function symbol contexts
903 for (size_t i = start_size; i < num_matches; ++i) {
904 sc.symbol = symtab->SymbolAtIndex(symbol_indexes[i]);
905 SymbolType sym_type = sc.symbol->GetType();
906 if (sc.symbol && sc.symbol->ValueIsAddress() &&
907 (sym_type == eSymbolTypeCode ||
908 sym_type == eSymbolTypeResolver)) {
909 FileAddrToIndexMap::const_iterator pos =
910 file_addr_to_index.find(
911 sc.symbol->GetAddressRef().GetFileAddress());
915 sc_list[pos->second].symbol = sc.symbol;
923 return sc_list.GetSize() - start_size;
926 void Module::FindAddressesForLine(const lldb::TargetSP target_sp,
927 const FileSpec &file, uint32_t line,
929 std::vector<Address> &output_local,
930 std::vector<Address> &output_extern) {
931 SearchFilterByModule filter(target_sp, m_file);
932 AddressResolverFileLine resolver(file, line, true);
933 resolver.ResolveAddress(filter);
935 for (size_t n = 0; n < resolver.GetNumberOfAddresses(); n++) {
936 Address addr = resolver.GetAddressRangeAtIndex(n).GetBaseAddress();
937 Function *f = addr.CalculateSymbolContextFunction();
938 if (f && f == function)
939 output_local.push_back(addr);
941 output_extern.push_back(addr);
945 size_t Module::FindTypes_Impl(
946 const ConstString &name, const CompilerDeclContext *parent_decl_ctx,
947 bool append, size_t max_matches,
948 llvm::DenseSet<lldb_private::SymbolFile *> &searched_symbol_files,
950 static Timer::Category func_cat(LLVM_PRETTY_FUNCTION);
951 Timer scoped_timer(func_cat, LLVM_PRETTY_FUNCTION);
952 SymbolVendor *symbols = GetSymbolVendor();
954 return symbols->FindTypes(name, parent_decl_ctx, append, max_matches,
955 searched_symbol_files, types);
959 size_t Module::FindTypesInNamespace(const ConstString &type_name,
960 const CompilerDeclContext *parent_decl_ctx,
961 size_t max_matches, TypeList &type_list) {
962 const bool append = true;
964 llvm::DenseSet<lldb_private::SymbolFile *> searched_symbol_files;
966 FindTypes_Impl(type_name, parent_decl_ctx, append, max_matches,
967 searched_symbol_files, types_map);
970 sc.module_sp = shared_from_this();
971 sc.SortTypeList(types_map, type_list);
976 lldb::TypeSP Module::FindFirstType(const SymbolContext &sc,
977 const ConstString &name, bool exact_match) {
979 llvm::DenseSet<lldb_private::SymbolFile *> searched_symbol_files;
980 const size_t num_matches =
981 FindTypes(name, exact_match, 1, searched_symbol_files, type_list);
983 return type_list.GetTypeAtIndex(0);
987 size_t Module::FindTypes(
988 const ConstString &name, bool exact_match, size_t max_matches,
989 llvm::DenseSet<lldb_private::SymbolFile *> &searched_symbol_files,
991 size_t num_matches = 0;
992 const char *type_name_cstr = name.GetCString();
993 llvm::StringRef type_scope;
994 llvm::StringRef type_basename;
995 const bool append = true;
996 TypeClass type_class = eTypeClassAny;
999 if (Type::GetTypeScopeAndBasename(type_name_cstr, type_scope, type_basename,
1001 // Check if "name" starts with "::" which means the qualified type starts
1002 // from the root namespace and implies and exact match. The typenames we
1003 // get back from clang do not start with "::" so we need to strip this off
1004 // in order to get the qualified names to match
1005 exact_match = type_scope.consume_front("::");
1007 ConstString type_basename_const_str(type_basename);
1008 if (FindTypes_Impl(type_basename_const_str, nullptr, append, max_matches,
1009 searched_symbol_files, typesmap)) {
1010 typesmap.RemoveMismatchedTypes(type_scope, type_basename, type_class,
1012 num_matches = typesmap.GetSize();
1015 // The type is not in a namespace/class scope, just search for it by
1017 if (type_class != eTypeClassAny && !type_basename.empty()) {
1018 // The "type_name_cstr" will have been modified if we have a valid type
1019 // class prefix (like "struct", "class", "union", "typedef" etc).
1020 FindTypes_Impl(ConstString(type_basename), nullptr, append, UINT_MAX,
1021 searched_symbol_files, typesmap);
1022 typesmap.RemoveMismatchedTypes(type_scope, type_basename, type_class,
1024 num_matches = typesmap.GetSize();
1026 num_matches = FindTypes_Impl(name, nullptr, append, UINT_MAX,
1027 searched_symbol_files, typesmap);
1029 std::string name_str(name.AsCString(""));
1030 typesmap.RemoveMismatchedTypes(type_scope, name_str, type_class,
1032 num_matches = typesmap.GetSize();
1036 if (num_matches > 0) {
1038 sc.module_sp = shared_from_this();
1039 sc.SortTypeList(typesmap, types);
1044 SymbolVendor *Module::GetSymbolVendor(bool can_create,
1045 lldb_private::Stream *feedback_strm) {
1046 if (!m_did_load_symbol_vendor.load()) {
1047 std::lock_guard<std::recursive_mutex> guard(m_mutex);
1048 if (!m_did_load_symbol_vendor.load() && can_create) {
1049 ObjectFile *obj_file = GetObjectFile();
1050 if (obj_file != nullptr) {
1051 static Timer::Category func_cat(LLVM_PRETTY_FUNCTION);
1052 Timer scoped_timer(func_cat, LLVM_PRETTY_FUNCTION);
1054 SymbolVendor::FindPlugin(shared_from_this(), feedback_strm));
1055 m_did_load_symbol_vendor = true;
1059 return m_symfile_ap.get();
1062 void Module::SetFileSpecAndObjectName(const FileSpec &file,
1063 const ConstString &object_name) {
1064 // Container objects whose paths do not specify a file directly can call this
1065 // function to correct the file and object names.
1067 m_mod_time = FileSystem::Instance().GetModificationTime(file);
1068 m_object_name = object_name;
1071 const ArchSpec &Module::GetArchitecture() const { return m_arch; }
1073 std::string Module::GetSpecificationDescription() const {
1074 std::string spec(GetFileSpec().GetPath());
1075 if (m_object_name) {
1077 spec += m_object_name.GetCString();
1083 void Module::GetDescription(Stream *s, lldb::DescriptionLevel level) {
1084 std::lock_guard<std::recursive_mutex> guard(m_mutex);
1086 if (level >= eDescriptionLevelFull) {
1087 if (m_arch.IsValid())
1088 s->Printf("(%s) ", m_arch.GetArchitectureName());
1091 if (level == eDescriptionLevelBrief) {
1092 const char *filename = m_file.GetFilename().GetCString();
1094 s->PutCString(filename);
1096 char path[PATH_MAX];
1097 if (m_file.GetPath(path, sizeof(path)))
1098 s->PutCString(path);
1101 const char *object_name = m_object_name.GetCString();
1103 s->Printf("(%s)", object_name);
1106 void Module::ReportError(const char *format, ...) {
1107 if (format && format[0]) {
1109 strm.PutCString("error: ");
1110 GetDescription(&strm, lldb::eDescriptionLevelBrief);
1113 va_start(args, format);
1114 strm.PrintfVarArg(format, args);
1117 const int format_len = strlen(format);
1118 if (format_len > 0) {
1119 const char last_char = format[format_len - 1];
1120 if (last_char != '\n' || last_char != '\r')
1123 Host::SystemLog(Host::eSystemLogError, "%s", strm.GetData());
1127 bool Module::FileHasChanged() const {
1128 if (!m_file_has_changed)
1129 m_file_has_changed =
1130 (FileSystem::Instance().GetModificationTime(m_file) != m_mod_time);
1131 return m_file_has_changed;
1134 void Module::ReportErrorIfModifyDetected(const char *format, ...) {
1135 if (!m_first_file_changed_log) {
1136 if (FileHasChanged()) {
1137 m_first_file_changed_log = true;
1140 strm.PutCString("error: the object file ");
1141 GetDescription(&strm, lldb::eDescriptionLevelFull);
1142 strm.PutCString(" has been modified\n");
1145 va_start(args, format);
1146 strm.PrintfVarArg(format, args);
1149 const int format_len = strlen(format);
1150 if (format_len > 0) {
1151 const char last_char = format[format_len - 1];
1152 if (last_char != '\n' || last_char != '\r')
1155 strm.PutCString("The debug session should be aborted as the original "
1156 "debug information has been overwritten.\n");
1157 Host::SystemLog(Host::eSystemLogError, "%s", strm.GetData());
1163 void Module::ReportWarning(const char *format, ...) {
1164 if (format && format[0]) {
1166 strm.PutCString("warning: ");
1167 GetDescription(&strm, lldb::eDescriptionLevelFull);
1171 va_start(args, format);
1172 strm.PrintfVarArg(format, args);
1175 const int format_len = strlen(format);
1176 if (format_len > 0) {
1177 const char last_char = format[format_len - 1];
1178 if (last_char != '\n' || last_char != '\r')
1181 Host::SystemLog(Host::eSystemLogWarning, "%s", strm.GetData());
1185 void Module::LogMessage(Log *log, const char *format, ...) {
1186 if (log != nullptr) {
1187 StreamString log_message;
1188 GetDescription(&log_message, lldb::eDescriptionLevelFull);
1189 log_message.PutCString(": ");
1191 va_start(args, format);
1192 log_message.PrintfVarArg(format, args);
1194 log->PutCString(log_message.GetData());
1198 void Module::LogMessageVerboseBacktrace(Log *log, const char *format, ...) {
1199 if (log != nullptr) {
1200 StreamString log_message;
1201 GetDescription(&log_message, lldb::eDescriptionLevelFull);
1202 log_message.PutCString(": ");
1204 va_start(args, format);
1205 log_message.PrintfVarArg(format, args);
1207 if (log->GetVerbose()) {
1208 std::string back_trace;
1209 llvm::raw_string_ostream stream(back_trace);
1210 llvm::sys::PrintStackTrace(stream);
1211 log_message.PutCString(back_trace);
1213 log->PutCString(log_message.GetData());
1217 void Module::Dump(Stream *s) {
1218 std::lock_guard<std::recursive_mutex> guard(m_mutex);
1219 // s->Printf("%.*p: ", (int)sizeof(void*) * 2, this);
1221 s->Printf("Module %s%s%s%s\n", m_file.GetPath().c_str(),
1222 m_object_name ? "(" : "",
1223 m_object_name ? m_object_name.GetCString() : "",
1224 m_object_name ? ")" : "");
1228 ObjectFile *objfile = GetObjectFile();
1232 SymbolVendor *symbols = GetSymbolVendor();
1239 TypeList *Module::GetTypeList() {
1240 SymbolVendor *symbols = GetSymbolVendor();
1242 return &symbols->GetTypeList();
1246 const ConstString &Module::GetObjectName() const { return m_object_name; }
1248 ObjectFile *Module::GetObjectFile() {
1249 if (!m_did_load_objfile.load()) {
1250 std::lock_guard<std::recursive_mutex> guard(m_mutex);
1251 if (!m_did_load_objfile.load()) {
1252 static Timer::Category func_cat(LLVM_PRETTY_FUNCTION);
1253 Timer scoped_timer(func_cat, "Module::GetObjectFile () module = %s",
1254 GetFileSpec().GetFilename().AsCString(""));
1255 DataBufferSP data_sp;
1256 lldb::offset_t data_offset = 0;
1257 const lldb::offset_t file_size =
1258 FileSystem::Instance().GetByteSize(m_file);
1259 if (file_size > m_object_offset) {
1260 m_did_load_objfile = true;
1261 m_objfile_sp = ObjectFile::FindPlugin(
1262 shared_from_this(), &m_file, m_object_offset,
1263 file_size - m_object_offset, data_sp, data_offset);
1265 // Once we get the object file, update our module with the object
1266 // file's architecture since it might differ in vendor/os if some
1267 // parts were unknown. But since the matching arch might already be
1268 // more specific than the generic COFF architecture, only merge in
1269 // those values that overwrite unspecified unknown values.
1270 m_arch.MergeFrom(m_objfile_sp->GetArchitecture());
1272 ReportError("failed to load objfile for %s",
1273 GetFileSpec().GetPath().c_str());
1278 return m_objfile_sp.get();
1281 SectionList *Module::GetSectionList() {
1282 // Populate m_sections_ap with sections from objfile.
1283 if (!m_sections_ap) {
1284 ObjectFile *obj_file = GetObjectFile();
1285 if (obj_file != nullptr)
1286 obj_file->CreateSections(*GetUnifiedSectionList());
1288 return m_sections_ap.get();
1291 void Module::SectionFileAddressesChanged() {
1292 ObjectFile *obj_file = GetObjectFile();
1294 obj_file->SectionFileAddressesChanged();
1295 SymbolVendor *sym_vendor = GetSymbolVendor();
1296 if (sym_vendor != nullptr)
1297 sym_vendor->SectionFileAddressesChanged();
1300 SectionList *Module::GetUnifiedSectionList() {
1302 m_sections_ap = llvm::make_unique<SectionList>();
1303 return m_sections_ap.get();
1306 const Symbol *Module::FindFirstSymbolWithNameAndType(const ConstString &name,
1307 SymbolType symbol_type) {
1308 static Timer::Category func_cat(LLVM_PRETTY_FUNCTION);
1310 func_cat, "Module::FindFirstSymbolWithNameAndType (name = %s, type = %i)",
1311 name.AsCString(), symbol_type);
1312 SymbolVendor *sym_vendor = GetSymbolVendor();
1314 Symtab *symtab = sym_vendor->GetSymtab();
1316 return symtab->FindFirstSymbolWithNameAndType(
1317 name, symbol_type, Symtab::eDebugAny, Symtab::eVisibilityAny);
1321 void Module::SymbolIndicesToSymbolContextList(
1322 Symtab *symtab, std::vector<uint32_t> &symbol_indexes,
1323 SymbolContextList &sc_list) {
1324 // No need to protect this call using m_mutex all other method calls are
1325 // already thread safe.
1327 size_t num_indices = symbol_indexes.size();
1328 if (num_indices > 0) {
1330 CalculateSymbolContext(&sc);
1331 for (size_t i = 0; i < num_indices; i++) {
1332 sc.symbol = symtab->SymbolAtIndex(symbol_indexes[i]);
1339 size_t Module::FindFunctionSymbols(const ConstString &name,
1340 uint32_t name_type_mask,
1341 SymbolContextList &sc_list) {
1342 static Timer::Category func_cat(LLVM_PRETTY_FUNCTION);
1343 Timer scoped_timer(func_cat,
1344 "Module::FindSymbolsFunctions (name = %s, mask = 0x%8.8x)",
1345 name.AsCString(), name_type_mask);
1346 SymbolVendor *sym_vendor = GetSymbolVendor();
1348 Symtab *symtab = sym_vendor->GetSymtab();
1350 return symtab->FindFunctionSymbols(name, name_type_mask, sc_list);
1355 size_t Module::FindSymbolsWithNameAndType(const ConstString &name,
1356 SymbolType symbol_type,
1357 SymbolContextList &sc_list) {
1358 // No need to protect this call using m_mutex all other method calls are
1359 // already thread safe.
1361 static Timer::Category func_cat(LLVM_PRETTY_FUNCTION);
1363 func_cat, "Module::FindSymbolsWithNameAndType (name = %s, type = %i)",
1364 name.AsCString(), symbol_type);
1365 const size_t initial_size = sc_list.GetSize();
1366 SymbolVendor *sym_vendor = GetSymbolVendor();
1368 Symtab *symtab = sym_vendor->GetSymtab();
1370 std::vector<uint32_t> symbol_indexes;
1371 symtab->FindAllSymbolsWithNameAndType(name, symbol_type, symbol_indexes);
1372 SymbolIndicesToSymbolContextList(symtab, symbol_indexes, sc_list);
1375 return sc_list.GetSize() - initial_size;
1378 size_t Module::FindSymbolsMatchingRegExAndType(const RegularExpression ®ex,
1379 SymbolType symbol_type,
1380 SymbolContextList &sc_list) {
1381 // No need to protect this call using m_mutex all other method calls are
1382 // already thread safe.
1384 static Timer::Category func_cat(LLVM_PRETTY_FUNCTION);
1387 "Module::FindSymbolsMatchingRegExAndType (regex = %s, type = %i)",
1388 regex.GetText().str().c_str(), symbol_type);
1389 const size_t initial_size = sc_list.GetSize();
1390 SymbolVendor *sym_vendor = GetSymbolVendor();
1392 Symtab *symtab = sym_vendor->GetSymtab();
1394 std::vector<uint32_t> symbol_indexes;
1395 symtab->FindAllSymbolsMatchingRexExAndType(
1396 regex, symbol_type, Symtab::eDebugAny, Symtab::eVisibilityAny,
1398 SymbolIndicesToSymbolContextList(symtab, symbol_indexes, sc_list);
1401 return sc_list.GetSize() - initial_size;
1404 void Module::PreloadSymbols() {
1405 std::lock_guard<std::recursive_mutex> guard(m_mutex);
1406 SymbolVendor * sym_vendor = GetSymbolVendor();
1410 // Prime the symbol file first, since it adds symbols to the symbol table.
1411 if (SymbolFile *symbol_file = sym_vendor->GetSymbolFile()) {
1412 symbol_file->PreloadSymbols();
1414 // Now we can prime the symbol table.
1415 if (Symtab * symtab = sym_vendor->GetSymtab()) {
1416 symtab->PreloadSymbols();
1420 void Module::SetSymbolFileFileSpec(const FileSpec &file) {
1421 if (!FileSystem::Instance().Exists(file))
1424 // Remove any sections in the unified section list that come from the
1425 // current symbol vendor.
1426 SectionList *section_list = GetSectionList();
1427 SymbolFile *symbol_file = m_symfile_ap->GetSymbolFile();
1428 if (section_list && symbol_file) {
1429 ObjectFile *obj_file = symbol_file->GetObjectFile();
1430 // Make sure we have an object file and that the symbol vendor's objfile
1431 // isn't the same as the module's objfile before we remove any sections
1434 // Check to make sure we aren't trying to specify the file we already
1436 if (obj_file->GetFileSpec() == file) {
1437 // We are being told to add the exact same file that we already have
1438 // we don't have to do anything.
1442 // Cleare the current symtab as we are going to replace it with a new
1444 obj_file->ClearSymtab();
1446 // The symbol file might be a directory bundle ("/tmp/a.out.dSYM")
1447 // instead of a full path to the symbol file within the bundle
1448 // ("/tmp/a.out.dSYM/Contents/Resources/DWARF/a.out"). So we need to
1451 if (FileSystem::Instance().IsDirectory(file)) {
1452 std::string new_path(file.GetPath());
1453 std::string old_path(obj_file->GetFileSpec().GetPath());
1454 if (old_path.find(new_path) == 0) {
1455 // We specified the same bundle as the symbol file that we already
1461 if (obj_file != m_objfile_sp.get()) {
1462 size_t num_sections = section_list->GetNumSections(0);
1463 for (size_t idx = num_sections; idx > 0; --idx) {
1464 lldb::SectionSP section_sp(
1465 section_list->GetSectionAtIndex(idx - 1));
1466 if (section_sp->GetObjectFile() == obj_file) {
1467 section_list->DeleteSection(idx - 1);
1473 // Keep all old symbol files around in case there are any lingering type
1474 // references in any SBValue objects that might have been handed out.
1475 m_old_symfiles.push_back(std::move(m_symfile_ap));
1477 m_symfile_spec = file;
1478 m_symfile_ap.reset();
1479 m_did_load_symbol_vendor = false;
1482 bool Module::IsExecutable() {
1483 if (GetObjectFile() == nullptr)
1486 return GetObjectFile()->IsExecutable();
1489 bool Module::IsLoadedInTarget(Target *target) {
1490 ObjectFile *obj_file = GetObjectFile();
1492 SectionList *sections = GetSectionList();
1493 if (sections != nullptr) {
1494 size_t num_sections = sections->GetSize();
1495 for (size_t sect_idx = 0; sect_idx < num_sections; sect_idx++) {
1496 SectionSP section_sp = sections->GetSectionAtIndex(sect_idx);
1497 if (section_sp->GetLoadBaseAddress(target) != LLDB_INVALID_ADDRESS) {
1506 bool Module::LoadScriptingResourceInTarget(Target *target, Status &error,
1507 Stream *feedback_stream) {
1509 error.SetErrorString("invalid destination Target");
1513 LoadScriptFromSymFile should_load =
1514 target->TargetProperties::GetLoadScriptFromSymbolFile();
1516 if (should_load == eLoadScriptFromSymFileFalse)
1519 Debugger &debugger = target->GetDebugger();
1520 const ScriptLanguage script_language = debugger.GetScriptLanguage();
1521 if (script_language != eScriptLanguageNone) {
1523 PlatformSP platform_sp(target->GetPlatform());
1526 error.SetErrorString("invalid Platform");
1530 FileSpecList file_specs = platform_sp->LocateExecutableScriptingResources(
1531 target, *this, feedback_stream);
1533 const uint32_t num_specs = file_specs.GetSize();
1535 ScriptInterpreter *script_interpreter =
1536 debugger.GetCommandInterpreter().GetScriptInterpreter();
1537 if (script_interpreter) {
1538 for (uint32_t i = 0; i < num_specs; ++i) {
1539 FileSpec scripting_fspec(file_specs.GetFileSpecAtIndex(i));
1540 if (scripting_fspec &&
1541 FileSystem::Instance().Exists(scripting_fspec)) {
1542 if (should_load == eLoadScriptFromSymFileWarn) {
1543 if (feedback_stream)
1544 feedback_stream->Printf(
1545 "warning: '%s' contains a debug script. To run this script "
1547 "this debug session:\n\n command script import "
1549 "To run all discovered debug scripts in this session:\n\n"
1550 " settings set target.load-script-from-symbol-file "
1552 GetFileSpec().GetFileNameStrippingExtension().GetCString(),
1553 scripting_fspec.GetPath().c_str());
1556 StreamString scripting_stream;
1557 scripting_fspec.Dump(&scripting_stream);
1558 const bool can_reload = true;
1559 const bool init_lldb_globals = false;
1560 bool did_load = script_interpreter->LoadScriptingModule(
1561 scripting_stream.GetData(), can_reload, init_lldb_globals,
1568 error.SetErrorString("invalid ScriptInterpreter");
1576 bool Module::SetArchitecture(const ArchSpec &new_arch) {
1577 if (!m_arch.IsValid()) {
1581 return m_arch.IsCompatibleMatch(new_arch);
1584 bool Module::SetLoadAddress(Target &target, lldb::addr_t value,
1585 bool value_is_offset, bool &changed) {
1586 ObjectFile *object_file = GetObjectFile();
1587 if (object_file != nullptr) {
1588 changed = object_file->SetLoadAddress(target, value, value_is_offset);
1596 bool Module::MatchesModuleSpec(const ModuleSpec &module_ref) {
1597 const UUID &uuid = module_ref.GetUUID();
1599 if (uuid.IsValid()) {
1600 // If the UUID matches, then nothing more needs to match...
1601 return (uuid == GetUUID());
1604 const FileSpec &file_spec = module_ref.GetFileSpec();
1606 if (!FileSpec::Equal(file_spec, m_file, (bool)file_spec.GetDirectory()) &&
1607 !FileSpec::Equal(file_spec, m_platform_file,
1608 (bool)file_spec.GetDirectory()))
1612 const FileSpec &platform_file_spec = module_ref.GetPlatformFileSpec();
1613 if (platform_file_spec) {
1614 if (!FileSpec::Equal(platform_file_spec, GetPlatformFileSpec(),
1615 (bool)platform_file_spec.GetDirectory()))
1619 const ArchSpec &arch = module_ref.GetArchitecture();
1620 if (arch.IsValid()) {
1621 if (!m_arch.IsCompatibleMatch(arch))
1625 const ConstString &object_name = module_ref.GetObjectName();
1627 if (object_name != GetObjectName())
1633 bool Module::FindSourceFile(const FileSpec &orig_spec,
1634 FileSpec &new_spec) const {
1635 std::lock_guard<std::recursive_mutex> guard(m_mutex);
1636 return m_source_mappings.FindFile(orig_spec, new_spec);
1639 bool Module::RemapSourceFile(llvm::StringRef path,
1640 std::string &new_path) const {
1641 std::lock_guard<std::recursive_mutex> guard(m_mutex);
1642 return m_source_mappings.RemapPath(path, new_path);
1645 llvm::VersionTuple Module::GetVersion() {
1646 if (ObjectFile *obj_file = GetObjectFile())
1647 return obj_file->GetVersion();
1648 return llvm::VersionTuple();
1651 bool Module::GetIsDynamicLinkEditor() {
1652 ObjectFile *obj_file = GetObjectFile();
1655 return obj_file->GetIsDynamicLinkEditor();