1 //===-- SymbolVendor.cpp ----------------------------------------*- C++ -*-===//
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
7 //===----------------------------------------------------------------------===//
9 #include "lldb/Symbol/SymbolVendor.h"
11 #include "lldb/Core/Module.h"
12 #include "lldb/Core/PluginManager.h"
13 #include "lldb/Symbol/CompileUnit.h"
14 #include "lldb/Symbol/ObjectFile.h"
15 #include "lldb/Symbol/SymbolFile.h"
16 #include "lldb/Utility/Stream.h"
19 using namespace lldb_private;
23 // Platforms can register a callback to use when creating symbol vendors to
24 // allow for complex debug information file setups, and to also allow for
25 // finding separate debug information files.
26 SymbolVendor *SymbolVendor::FindPlugin(const lldb::ModuleSP &module_sp,
27 lldb_private::Stream *feedback_strm) {
28 std::unique_ptr<SymbolVendor> instance_up;
29 SymbolVendorCreateInstance create_callback;
32 (create_callback = PluginManager::GetSymbolVendorCreateCallbackAtIndex(
35 instance_up.reset(create_callback(module_sp, feedback_strm));
38 return instance_up.release();
41 // The default implementation just tries to create debug information using
42 // the file representation for the module.
43 ObjectFileSP sym_objfile_sp;
44 FileSpec sym_spec = module_sp->GetSymbolFileFileSpec();
45 if (sym_spec && sym_spec != module_sp->GetObjectFile()->GetFileSpec()) {
47 offset_t data_offset = 0;
48 sym_objfile_sp = ObjectFile::FindPlugin(
49 module_sp, &sym_spec, 0, FileSystem::Instance().GetByteSize(sym_spec),
50 data_sp, data_offset);
53 sym_objfile_sp = module_sp->GetObjectFile()->shared_from_this();
54 instance_up.reset(new SymbolVendor(module_sp));
55 instance_up->AddSymbolFileRepresentation(sym_objfile_sp);
56 return instance_up.release();
59 // SymbolVendor constructor
60 SymbolVendor::SymbolVendor(const lldb::ModuleSP &module_sp)
61 : ModuleChild(module_sp), m_type_list(), m_compile_units(), m_sym_file_up(),
65 SymbolVendor::~SymbolVendor() {}
67 // Add a representation given an object file.
68 void SymbolVendor::AddSymbolFileRepresentation(const ObjectFileSP &objfile_sp) {
69 ModuleSP module_sp(GetModule());
71 std::lock_guard<std::recursive_mutex> guard(module_sp->GetMutex());
73 m_objfile_sp = objfile_sp;
74 m_sym_file_up.reset(SymbolFile::FindPlugin(objfile_sp.get()));
79 bool SymbolVendor::SetCompileUnitAtIndex(size_t idx, const CompUnitSP &cu_sp) {
80 ModuleSP module_sp(GetModule());
82 std::lock_guard<std::recursive_mutex> guard(module_sp->GetMutex());
83 const size_t num_compile_units = GetNumCompileUnits();
84 if (idx < num_compile_units) {
85 // Fire off an assertion if this compile unit already exists for now. The
86 // partial parsing should take care of only setting the compile unit
87 // once, so if this assertion fails, we need to make sure that we don't
88 // have a race condition, or have a second parse of the same compile
90 assert(m_compile_units[idx].get() == nullptr);
91 m_compile_units[idx] = cu_sp;
94 // This should NOT happen, and if it does, we want to crash and know
96 assert(idx < num_compile_units);
102 size_t SymbolVendor::GetNumCompileUnits() {
103 ModuleSP module_sp(GetModule());
105 std::lock_guard<std::recursive_mutex> guard(module_sp->GetMutex());
106 if (m_compile_units.empty()) {
108 // Resize our array of compile unit shared pointers -- which will each
109 // remain NULL until someone asks for the actual compile unit
110 // information. When this happens, the symbol file will be asked to
111 // parse this compile unit information.
112 m_compile_units.resize(m_sym_file_up->GetNumCompileUnits());
116 return m_compile_units.size();
119 lldb::LanguageType SymbolVendor::ParseLanguage(CompileUnit &comp_unit) {
120 ModuleSP module_sp(GetModule());
122 std::lock_guard<std::recursive_mutex> guard(module_sp->GetMutex());
124 return m_sym_file_up->ParseLanguage(comp_unit);
126 return eLanguageTypeUnknown;
129 size_t SymbolVendor::ParseFunctions(CompileUnit &comp_unit) {
130 ModuleSP module_sp(GetModule());
132 std::lock_guard<std::recursive_mutex> guard(module_sp->GetMutex());
134 return m_sym_file_up->ParseFunctions(comp_unit);
139 bool SymbolVendor::ParseLineTable(CompileUnit &comp_unit) {
140 ModuleSP module_sp(GetModule());
142 std::lock_guard<std::recursive_mutex> guard(module_sp->GetMutex());
144 return m_sym_file_up->ParseLineTable(comp_unit);
149 bool SymbolVendor::ParseDebugMacros(CompileUnit &comp_unit) {
150 ModuleSP module_sp(GetModule());
152 std::lock_guard<std::recursive_mutex> guard(module_sp->GetMutex());
154 return m_sym_file_up->ParseDebugMacros(comp_unit);
158 bool SymbolVendor::ParseSupportFiles(CompileUnit &comp_unit,
159 FileSpecList &support_files) {
160 ModuleSP module_sp(GetModule());
162 std::lock_guard<std::recursive_mutex> guard(module_sp->GetMutex());
164 return m_sym_file_up->ParseSupportFiles(comp_unit, support_files);
169 bool SymbolVendor::ParseIsOptimized(CompileUnit &comp_unit) {
170 ModuleSP module_sp(GetModule());
172 std::lock_guard<std::recursive_mutex> guard(module_sp->GetMutex());
174 return m_sym_file_up->ParseIsOptimized(comp_unit);
179 bool SymbolVendor::ParseImportedModules(
180 const SymbolContext &sc, std::vector<SourceModule> &imported_modules) {
181 ModuleSP module_sp(GetModule());
183 std::lock_guard<std::recursive_mutex> guard(module_sp->GetMutex());
185 return m_sym_file_up->ParseImportedModules(sc, imported_modules);
190 size_t SymbolVendor::ParseBlocksRecursive(Function &func) {
191 ModuleSP module_sp(GetModule());
193 std::lock_guard<std::recursive_mutex> guard(module_sp->GetMutex());
195 return m_sym_file_up->ParseBlocksRecursive(func);
200 size_t SymbolVendor::ParseTypes(CompileUnit &comp_unit) {
201 ModuleSP module_sp(GetModule());
203 std::lock_guard<std::recursive_mutex> guard(module_sp->GetMutex());
205 return m_sym_file_up->ParseTypes(comp_unit);
210 size_t SymbolVendor::ParseVariablesForContext(const SymbolContext &sc) {
211 ModuleSP module_sp(GetModule());
213 std::lock_guard<std::recursive_mutex> guard(module_sp->GetMutex());
215 return m_sym_file_up->ParseVariablesForContext(sc);
220 Type *SymbolVendor::ResolveTypeUID(lldb::user_id_t type_uid) {
221 ModuleSP module_sp(GetModule());
223 std::lock_guard<std::recursive_mutex> guard(module_sp->GetMutex());
225 return m_sym_file_up->ResolveTypeUID(type_uid);
230 uint32_t SymbolVendor::ResolveSymbolContext(const Address &so_addr,
231 SymbolContextItem resolve_scope,
233 ModuleSP module_sp(GetModule());
235 std::lock_guard<std::recursive_mutex> guard(module_sp->GetMutex());
237 return m_sym_file_up->ResolveSymbolContext(so_addr, resolve_scope, sc);
242 uint32_t SymbolVendor::ResolveSymbolContext(const FileSpec &file_spec,
243 uint32_t line, bool check_inlines,
244 SymbolContextItem resolve_scope,
245 SymbolContextList &sc_list) {
246 ModuleSP module_sp(GetModule());
248 std::lock_guard<std::recursive_mutex> guard(module_sp->GetMutex());
250 return m_sym_file_up->ResolveSymbolContext(file_spec, line, check_inlines,
251 resolve_scope, sc_list);
257 SymbolVendor::FindGlobalVariables(ConstString name,
258 const CompilerDeclContext *parent_decl_ctx,
259 size_t max_matches, VariableList &variables) {
260 ModuleSP module_sp(GetModule());
262 std::lock_guard<std::recursive_mutex> guard(module_sp->GetMutex());
264 return m_sym_file_up->FindGlobalVariables(name, parent_decl_ctx,
265 max_matches, variables);
270 size_t SymbolVendor::FindGlobalVariables(const RegularExpression ®ex,
272 VariableList &variables) {
273 ModuleSP module_sp(GetModule());
275 std::lock_guard<std::recursive_mutex> guard(module_sp->GetMutex());
277 return m_sym_file_up->FindGlobalVariables(regex, max_matches, variables);
282 size_t SymbolVendor::FindFunctions(ConstString name,
283 const CompilerDeclContext *parent_decl_ctx,
284 FunctionNameType name_type_mask,
285 bool include_inlines, bool append,
286 SymbolContextList &sc_list) {
287 ModuleSP module_sp(GetModule());
289 std::lock_guard<std::recursive_mutex> guard(module_sp->GetMutex());
291 return m_sym_file_up->FindFunctions(name, parent_decl_ctx, name_type_mask,
292 include_inlines, append, sc_list);
297 size_t SymbolVendor::FindFunctions(const RegularExpression ®ex,
298 bool include_inlines, bool append,
299 SymbolContextList &sc_list) {
300 ModuleSP module_sp(GetModule());
302 std::lock_guard<std::recursive_mutex> guard(module_sp->GetMutex());
304 return m_sym_file_up->FindFunctions(regex, include_inlines, append,
310 size_t SymbolVendor::FindTypes(
311 ConstString name, const CompilerDeclContext *parent_decl_ctx,
312 bool append, size_t max_matches,
313 llvm::DenseSet<lldb_private::SymbolFile *> &searched_symbol_files,
315 ModuleSP module_sp(GetModule());
317 std::lock_guard<std::recursive_mutex> guard(module_sp->GetMutex());
319 return m_sym_file_up->FindTypes(name, parent_decl_ctx, append,
320 max_matches, searched_symbol_files,
328 size_t SymbolVendor::FindTypes(const std::vector<CompilerContext> &context,
329 bool append, TypeMap &types) {
330 ModuleSP module_sp(GetModule());
332 std::lock_guard<std::recursive_mutex> guard(module_sp->GetMutex());
334 return m_sym_file_up->FindTypes(context, append, types);
341 size_t SymbolVendor::GetTypes(SymbolContextScope *sc_scope, TypeClass type_mask,
342 lldb_private::TypeList &type_list) {
343 ModuleSP module_sp(GetModule());
345 std::lock_guard<std::recursive_mutex> guard(module_sp->GetMutex());
347 return m_sym_file_up->GetTypes(sc_scope, type_mask, type_list);
353 SymbolVendor::FindNamespace(ConstString name,
354 const CompilerDeclContext *parent_decl_ctx) {
355 CompilerDeclContext namespace_decl_ctx;
356 ModuleSP module_sp(GetModule());
358 std::lock_guard<std::recursive_mutex> guard(module_sp->GetMutex());
360 namespace_decl_ctx = m_sym_file_up->FindNamespace(name, parent_decl_ctx);
362 return namespace_decl_ctx;
365 void SymbolVendor::Dump(Stream *s) {
366 ModuleSP module_sp(GetModule());
368 std::lock_guard<std::recursive_mutex> guard(module_sp->GetMutex());
370 bool show_context = false;
372 s->Printf("%p: ", static_cast<void *>(this));
374 s->PutCString("SymbolVendor");
376 *s << " " << m_sym_file_up->GetPluginName();
377 ObjectFile *objfile = m_sym_file_up->GetObjectFile();
379 const FileSpec &objfile_file_spec = objfile->GetFileSpec();
380 if (objfile_file_spec) {
382 objfile_file_spec.Dump(s);
389 m_sym_file_up->Dump(*s);
391 m_type_list.Dump(s, show_context);
393 CompileUnitConstIter cu_pos, cu_end;
394 cu_end = m_compile_units.end();
395 for (cu_pos = m_compile_units.begin(); cu_pos != cu_end; ++cu_pos) {
396 // We currently only dump the compile units that have been parsed
398 (*cu_pos)->Dump(s, show_context);
401 if (Symtab *symtab = GetSymtab())
402 symtab->Dump(s, nullptr, eSortOrderNone);
408 CompUnitSP SymbolVendor::GetCompileUnitAtIndex(size_t idx) {
410 ModuleSP module_sp(GetModule());
412 std::lock_guard<std::recursive_mutex> guard(module_sp->GetMutex());
413 const size_t num_compile_units = GetNumCompileUnits();
414 if (idx < num_compile_units) {
415 cu_sp = m_compile_units[idx];
416 if (cu_sp.get() == nullptr) {
417 m_compile_units[idx] = m_sym_file_up->ParseCompileUnitAtIndex(idx);
418 cu_sp = m_compile_units[idx];
425 FileSpec SymbolVendor::GetMainFileSpec() const {
427 const ObjectFile *symfile_objfile = m_sym_file_up->GetObjectFile();
429 return symfile_objfile->GetFileSpec();
435 Symtab *SymbolVendor::GetSymtab() {
436 ModuleSP module_sp(GetModule());
440 std::lock_guard<std::recursive_mutex> guard(module_sp->GetMutex());
445 ObjectFile *objfile = module_sp->GetObjectFile();
449 m_symtab = objfile->GetSymtab();
450 if (m_symtab && m_sym_file_up)
451 m_sym_file_up->AddSymbols(*m_symtab);
456 void SymbolVendor::ClearSymtab() {
457 ModuleSP module_sp(GetModule());
459 ObjectFile *objfile = module_sp->GetObjectFile();
461 // Clear symbol table from unified section list.
462 objfile->ClearSymtab();
467 void SymbolVendor::SectionFileAddressesChanged() {
468 ModuleSP module_sp(GetModule());
470 ObjectFile *module_objfile = module_sp->GetObjectFile();
472 ObjectFile *symfile_objfile = m_sym_file_up->GetObjectFile();
473 if (symfile_objfile != module_objfile)
474 symfile_objfile->SectionFileAddressesChanged();
476 Symtab *symtab = GetSymtab();
478 symtab->SectionFileAddressesChanged();
483 // PluginInterface protocol
484 lldb_private::ConstString SymbolVendor::GetPluginName() {
485 static ConstString g_name("vendor-default");
489 uint32_t SymbolVendor::GetPluginVersion() { return 1; }