1 //===-- SymbolFileDWARFDebugMap.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 "SymbolFileDWARFDebugMap.h"
12 #include "DWARFDebugAranges.h"
14 #include "lldb/Core/Module.h"
15 #include "lldb/Core/ModuleList.h"
16 #include "lldb/Core/PluginManager.h"
17 #include "lldb/Core/RangeMap.h"
18 #include "lldb/Core/Section.h"
19 #include "lldb/Host/FileSystem.h"
20 #include "lldb/Utility/RegularExpression.h"
21 #include "lldb/Utility/Timer.h"
23 //#define DEBUG_OSO_DMAP // DO NOT CHECKIN WITH THIS NOT COMMENTED OUT
24 #if defined(DEBUG_OSO_DMAP)
25 #include "lldb/Core/StreamFile.h"
28 #include "lldb/Symbol/CompileUnit.h"
29 #include "lldb/Symbol/LineTable.h"
30 #include "lldb/Symbol/ObjectFile.h"
31 #include "lldb/Symbol/SymbolVendor.h"
32 #include "lldb/Symbol/TypeMap.h"
33 #include "lldb/Symbol/VariableList.h"
34 #include "llvm/Support/ScopedPrinter.h"
36 #include "LogChannelDWARF.h"
37 #include "SymbolFileDWARF.h"
40 using namespace lldb_private;
42 // Subclass lldb_private::Module so we can intercept the
43 // "Module::GetObjectFile()" (so we can fixup the object file sections) and
44 // also for "Module::GetSymbolVendor()" (so we can fixup the symbol file id.
46 const SymbolFileDWARFDebugMap::FileRangeMap &
47 SymbolFileDWARFDebugMap::CompileUnitInfo::GetFileRangeMap(
48 SymbolFileDWARFDebugMap *exe_symfile) {
49 if (file_range_map_valid)
50 return file_range_map;
52 file_range_map_valid = true;
54 Module *oso_module = exe_symfile->GetModuleByCompUnitInfo(this);
56 return file_range_map;
58 ObjectFile *oso_objfile = oso_module->GetObjectFile();
60 return file_range_map;
62 Log *log(LogChannelDWARF::GetLogIfAll(DWARF_LOG_DEBUG_MAP));
64 ConstString object_name(oso_module->GetObjectName());
66 "%p: SymbolFileDWARFDebugMap::CompileUnitInfo::GetFileRangeMap ('%s')",
67 static_cast<void *>(this),
68 oso_module->GetSpecificationDescription().c_str());
71 std::vector<SymbolFileDWARFDebugMap::CompileUnitInfo *> cu_infos;
72 if (exe_symfile->GetCompUnitInfosForModule(oso_module, cu_infos)) {
73 for (auto comp_unit_info : cu_infos) {
74 Symtab *exe_symtab = exe_symfile->GetObjectFile()->GetSymtab();
75 ModuleSP oso_module_sp(oso_objfile->GetModule());
76 Symtab *oso_symtab = oso_objfile->GetSymtab();
78 /// const uint32_t fun_resolve_flags = SymbolContext::Module |
79 /// eSymbolContextCompUnit | eSymbolContextFunction;
80 // SectionList *oso_sections = oso_objfile->Sections();
81 // Now we need to make sections that map from zero based object file
82 // addresses to where things ended up in the main executable.
84 assert(comp_unit_info->first_symbol_index != UINT32_MAX);
85 // End index is one past the last valid symbol index
86 const uint32_t oso_end_idx = comp_unit_info->last_symbol_index + 1;
87 for (uint32_t idx = comp_unit_info->first_symbol_index +
88 2; // Skip the N_SO and N_OSO
89 idx < oso_end_idx; ++idx) {
90 Symbol *exe_symbol = exe_symtab->SymbolAtIndex(idx);
92 if (!exe_symbol->IsDebug())
95 switch (exe_symbol->GetType()) {
99 case eSymbolTypeCode: {
100 // For each N_FUN, or function that we run into in the debug map we
101 // make a new section that we add to the sections found in the .o
102 // file. This new section has the file address set to what the
103 // addresses are in the .o file, and the load address is adjusted
104 // to match where it ended up in the final executable! We do this
105 // before we parse any dwarf info so that when it goes get parsed
106 // all section/offset addresses that get registered will resolve
107 // correctly to the new addresses in the main executable.
109 // First we find the original symbol in the .o file's symbol table
110 Symbol *oso_fun_symbol = oso_symtab->FindFirstSymbolWithNameAndType(
111 exe_symbol->GetMangled().GetName(lldb::eLanguageTypeUnknown,
112 Mangled::ePreferMangled),
113 eSymbolTypeCode, Symtab::eDebugNo, Symtab::eVisibilityAny);
114 if (oso_fun_symbol) {
115 // Add the inverse OSO file address to debug map entry mapping
116 exe_symfile->AddOSOFileRange(
117 this, exe_symbol->GetAddressRef().GetFileAddress(),
118 exe_symbol->GetByteSize(),
119 oso_fun_symbol->GetAddressRef().GetFileAddress(),
120 oso_fun_symbol->GetByteSize());
124 case eSymbolTypeData: {
125 // For each N_GSYM we remap the address for the global by making a
126 // new section that we add to the sections found in the .o file.
127 // This new section has the file address set to what the addresses
128 // are in the .o file, and the load address is adjusted to match
129 // where it ended up in the final executable! We do this before we
130 // parse any dwarf info so that when it goes get parsed all
131 // section/offset addresses that get registered will resolve
132 // correctly to the new addresses in the main executable. We
133 // initially set the section size to be 1 byte, but will need to
134 // fix up these addresses further after all globals have been
135 // parsed to span the gaps, or we can find the global variable
136 // sizes from the DWARF info as we are parsing.
138 // Next we find the non-stab entry that corresponds to the N_GSYM
140 Symbol *oso_gsym_symbol =
141 oso_symtab->FindFirstSymbolWithNameAndType(
142 exe_symbol->GetMangled().GetName(lldb::eLanguageTypeUnknown,
143 Mangled::ePreferMangled),
144 eSymbolTypeData, Symtab::eDebugNo, Symtab::eVisibilityAny);
145 if (exe_symbol && oso_gsym_symbol && exe_symbol->ValueIsAddress() &&
146 oso_gsym_symbol->ValueIsAddress()) {
147 // Add the inverse OSO file address to debug map entry mapping
148 exe_symfile->AddOSOFileRange(
149 this, exe_symbol->GetAddressRef().GetFileAddress(),
150 exe_symbol->GetByteSize(),
151 oso_gsym_symbol->GetAddressRef().GetFileAddress(),
152 oso_gsym_symbol->GetByteSize());
159 exe_symfile->FinalizeOSOFileRanges(this);
160 // We don't need the symbols anymore for the .o files
161 oso_objfile->ClearSymtab();
164 return file_range_map;
167 class DebugMapModule : public Module {
169 DebugMapModule(const ModuleSP &exe_module_sp, uint32_t cu_idx,
170 const FileSpec &file_spec, const ArchSpec &arch,
171 const ConstString *object_name, off_t object_offset,
172 const llvm::sys::TimePoint<> object_mod_time)
173 : Module(file_spec, arch, object_name, object_offset, object_mod_time),
174 m_exe_module_wp(exe_module_sp), m_cu_idx(cu_idx) {}
176 ~DebugMapModule() override = default;
179 GetSymbolVendor(bool can_create = true,
180 lldb_private::Stream *feedback_strm = NULL) override {
182 if (m_symfile_ap.get() || !can_create)
183 return m_symfile_ap.get();
185 ModuleSP exe_module_sp(m_exe_module_wp.lock());
187 // Now get the object file outside of a locking scope
188 ObjectFile *oso_objfile = GetObjectFile();
190 std::lock_guard<std::recursive_mutex> guard(m_mutex);
191 SymbolVendor *symbol_vendor =
192 Module::GetSymbolVendor(can_create, feedback_strm);
194 // Set a pointer to this class to set our OSO DWARF file know that
195 // the DWARF is being used along with a debug map and that it will
196 // have the remapped sections that we do below.
197 SymbolFileDWARF *oso_symfile =
198 SymbolFileDWARFDebugMap::GetSymbolFileAsSymbolFileDWARF(
199 symbol_vendor->GetSymbolFile());
204 ObjectFile *exe_objfile = exe_module_sp->GetObjectFile();
205 SymbolVendor *exe_sym_vendor = exe_module_sp->GetSymbolVendor();
207 if (exe_objfile && exe_sym_vendor) {
208 oso_symfile->SetDebugMapModule(exe_module_sp);
209 // Set the ID of the symbol file DWARF to the index of the OSO
210 // shifted left by 32 bits to provide a unique prefix for any
211 // UserID's that get created in the symbol file.
212 oso_symfile->SetID(((uint64_t)m_cu_idx + 1ull) << 32ull);
214 return symbol_vendor;
222 ModuleWP m_exe_module_wp;
223 const uint32_t m_cu_idx;
226 void SymbolFileDWARFDebugMap::Initialize() {
227 PluginManager::RegisterPlugin(GetPluginNameStatic(),
228 GetPluginDescriptionStatic(), CreateInstance);
231 void SymbolFileDWARFDebugMap::Terminate() {
232 PluginManager::UnregisterPlugin(CreateInstance);
235 lldb_private::ConstString SymbolFileDWARFDebugMap::GetPluginNameStatic() {
236 static ConstString g_name("dwarf-debugmap");
240 const char *SymbolFileDWARFDebugMap::GetPluginDescriptionStatic() {
241 return "DWARF and DWARF3 debug symbol file reader (debug map).";
244 SymbolFile *SymbolFileDWARFDebugMap::CreateInstance(ObjectFile *obj_file) {
245 return new SymbolFileDWARFDebugMap(obj_file);
248 SymbolFileDWARFDebugMap::SymbolFileDWARFDebugMap(ObjectFile *ofile)
249 : SymbolFile(ofile), m_flags(), m_compile_unit_infos(), m_func_indexes(),
251 m_supports_DW_AT_APPLE_objc_complete_type(eLazyBoolCalculate) {}
253 SymbolFileDWARFDebugMap::~SymbolFileDWARFDebugMap() {}
255 void SymbolFileDWARFDebugMap::InitializeObject() {}
257 void SymbolFileDWARFDebugMap::InitOSO() {
258 if (m_flags.test(kHaveInitializedOSOs))
261 m_flags.set(kHaveInitializedOSOs);
263 // If the object file has been stripped, there is no sense in looking further
264 // as all of the debug symbols for the debug map will not be available
265 if (m_obj_file->IsStripped())
268 // Also make sure the file type is some sort of executable. Core files, debug
269 // info files (dSYM), object files (.o files), and stub libraries all can
270 switch (m_obj_file->GetType()) {
271 case ObjectFile::eTypeInvalid:
272 case ObjectFile::eTypeCoreFile:
273 case ObjectFile::eTypeDebugInfo:
274 case ObjectFile::eTypeObjectFile:
275 case ObjectFile::eTypeStubLibrary:
276 case ObjectFile::eTypeUnknown:
277 case ObjectFile::eTypeJIT:
280 case ObjectFile::eTypeExecutable:
281 case ObjectFile::eTypeDynamicLinker:
282 case ObjectFile::eTypeSharedLibrary:
286 // In order to get the abilities of this plug-in, we look at the list of
287 // N_OSO entries (object files) from the symbol table and make sure that
288 // these files exist and also contain valid DWARF. If we get any of that then
289 // we return the abilities of the first N_OSO's DWARF.
291 Symtab *symtab = m_obj_file->GetSymtab();
293 Log *log(LogChannelDWARF::GetLogIfAll(DWARF_LOG_DEBUG_MAP));
295 std::vector<uint32_t> oso_indexes;
296 // When a mach-o symbol is encoded, the n_type field is encoded in bits
297 // 23:16, and the n_desc field is encoded in bits 15:0.
299 // To find all N_OSO entries that are part of the DWARF + debug map we find
300 // only object file symbols with the flags value as follows: bits 23:16 ==
301 // 0x66 (N_OSO) bits 15: 0 == 0x0001 (specifies this is a debug map object
303 const uint32_t k_oso_symbol_flags_value = 0x660001u;
305 const uint32_t oso_index_count =
306 symtab->AppendSymbolIndexesWithTypeAndFlagsValue(
307 eSymbolTypeObjectFile, k_oso_symbol_flags_value, oso_indexes);
309 if (oso_index_count > 0) {
310 symtab->AppendSymbolIndexesWithType(eSymbolTypeCode, Symtab::eDebugYes,
311 Symtab::eVisibilityAny,
313 symtab->AppendSymbolIndexesWithType(eSymbolTypeData, Symtab::eDebugYes,
314 Symtab::eVisibilityAny,
317 symtab->SortSymbolIndexesByValue(m_func_indexes, true);
318 symtab->SortSymbolIndexesByValue(m_glob_indexes, true);
320 for (uint32_t sym_idx : m_func_indexes) {
321 const Symbol *symbol = symtab->SymbolAtIndex(sym_idx);
322 lldb::addr_t file_addr = symbol->GetAddressRef().GetFileAddress();
323 lldb::addr_t byte_size = symbol->GetByteSize();
324 DebugMap::Entry debug_map_entry(
325 file_addr, byte_size, OSOEntry(sym_idx, LLDB_INVALID_ADDRESS));
326 m_debug_map.Append(debug_map_entry);
328 for (uint32_t sym_idx : m_glob_indexes) {
329 const Symbol *symbol = symtab->SymbolAtIndex(sym_idx);
330 lldb::addr_t file_addr = symbol->GetAddressRef().GetFileAddress();
331 lldb::addr_t byte_size = symbol->GetByteSize();
332 DebugMap::Entry debug_map_entry(
333 file_addr, byte_size, OSOEntry(sym_idx, LLDB_INVALID_ADDRESS));
334 m_debug_map.Append(debug_map_entry);
338 m_compile_unit_infos.resize(oso_index_count);
340 for (uint32_t i = 0; i < oso_index_count; ++i) {
341 const uint32_t so_idx = oso_indexes[i] - 1;
342 const uint32_t oso_idx = oso_indexes[i];
343 const Symbol *so_symbol = symtab->SymbolAtIndex(so_idx);
344 const Symbol *oso_symbol = symtab->SymbolAtIndex(oso_idx);
345 if (so_symbol && oso_symbol &&
346 so_symbol->GetType() == eSymbolTypeSourceFile &&
347 oso_symbol->GetType() == eSymbolTypeObjectFile) {
348 m_compile_unit_infos[i].so_file.SetFile(
349 so_symbol->GetName().AsCString(), FileSpec::Style::native);
350 m_compile_unit_infos[i].oso_path = oso_symbol->GetName();
351 m_compile_unit_infos[i].oso_mod_time =
352 llvm::sys::toTimePoint(oso_symbol->GetIntegerValue(0));
353 uint32_t sibling_idx = so_symbol->GetSiblingIndex();
354 // The sibling index can't be less that or equal to the current index
356 if (sibling_idx == UINT32_MAX) {
357 m_obj_file->GetModule()->ReportError(
358 "N_SO in symbol with UID %u has invalid sibling in debug map, "
359 "please file a bug and attach the binary listed in this error",
362 const Symbol *last_symbol = symtab->SymbolAtIndex(sibling_idx - 1);
363 m_compile_unit_infos[i].first_symbol_index = so_idx;
364 m_compile_unit_infos[i].last_symbol_index = sibling_idx - 1;
365 m_compile_unit_infos[i].first_symbol_id = so_symbol->GetID();
366 m_compile_unit_infos[i].last_symbol_id = last_symbol->GetID();
369 log->Printf("Initialized OSO 0x%8.8x: file=%s", i,
370 oso_symbol->GetName().GetCString());
373 if (oso_symbol == NULL)
374 m_obj_file->GetModule()->ReportError(
375 "N_OSO symbol[%u] can't be found, please file a bug and attach "
376 "the binary listed in this error",
378 else if (so_symbol == NULL)
379 m_obj_file->GetModule()->ReportError(
380 "N_SO not found for N_OSO symbol[%u], please file a bug and "
381 "attach the binary listed in this error",
383 else if (so_symbol->GetType() != eSymbolTypeSourceFile)
384 m_obj_file->GetModule()->ReportError(
385 "N_SO has incorrect symbol type (%u) for N_OSO symbol[%u], "
386 "please file a bug and attach the binary listed in this error",
387 so_symbol->GetType(), oso_idx);
388 else if (oso_symbol->GetType() != eSymbolTypeSourceFile)
389 m_obj_file->GetModule()->ReportError(
390 "N_OSO has incorrect symbol type (%u) for N_OSO symbol[%u], "
391 "please file a bug and attach the binary listed in this error",
392 oso_symbol->GetType(), oso_idx);
399 Module *SymbolFileDWARFDebugMap::GetModuleByOSOIndex(uint32_t oso_idx) {
400 const uint32_t cu_count = GetNumCompileUnits();
401 if (oso_idx < cu_count)
402 return GetModuleByCompUnitInfo(&m_compile_unit_infos[oso_idx]);
406 Module *SymbolFileDWARFDebugMap::GetModuleByCompUnitInfo(
407 CompileUnitInfo *comp_unit_info) {
408 if (!comp_unit_info->oso_sp) {
409 auto pos = m_oso_map.find(
410 {comp_unit_info->oso_path, comp_unit_info->oso_mod_time});
411 if (pos != m_oso_map.end()) {
412 comp_unit_info->oso_sp = pos->second;
414 ObjectFile *obj_file = GetObjectFile();
415 comp_unit_info->oso_sp.reset(new OSOInfo());
416 m_oso_map[{comp_unit_info->oso_path, comp_unit_info->oso_mod_time}] =
417 comp_unit_info->oso_sp;
418 const char *oso_path = comp_unit_info->oso_path.GetCString();
419 FileSpec oso_file(oso_path);
420 ConstString oso_object;
421 if (FileSystem::Instance().Exists(oso_file)) {
422 // The modification time returned by the FS can have a higher precision
423 // than the one from the CU.
424 auto oso_mod_time = std::chrono::time_point_cast<std::chrono::seconds>(
425 FileSystem::Instance().GetModificationTime(oso_file));
426 if (oso_mod_time != comp_unit_info->oso_mod_time) {
427 obj_file->GetModule()->ReportError(
428 "debug map object file '%s' has changed (actual time is "
429 "%s, debug map time is %s"
430 ") since this executable was linked, file will be ignored",
431 oso_file.GetPath().c_str(), llvm::to_string(oso_mod_time).c_str(),
432 llvm::to_string(comp_unit_info->oso_mod_time).c_str());
437 const bool must_exist = true;
439 if (!ObjectFile::SplitArchivePathWithObject(oso_path, oso_file,
440 oso_object, must_exist)) {
444 // Always create a new module for .o files. Why? Because we use the debug
445 // map, to add new sections to each .o file and even though a .o file
446 // might not have changed, the sections that get added to the .o file can
449 // Only adopt the architecture from the module (not the vendor or OS)
450 // since .o files for "i386-apple-ios" will historically show up as "i386
451 // -apple-macosx" due to the lack of a LC_VERSION_MIN_MACOSX or
452 // LC_VERSION_MIN_IPHONEOS load command...
453 oso_arch.SetTriple(m_obj_file->GetModule()
459 comp_unit_info->oso_sp->module_sp.reset(new DebugMapModule(
460 obj_file->GetModule(), GetCompUnitInfoIndex(comp_unit_info), oso_file,
461 oso_arch, oso_object ? &oso_object : NULL, 0,
462 oso_object ? comp_unit_info->oso_mod_time
463 : llvm::sys::TimePoint<>()));
466 if (comp_unit_info->oso_sp)
467 return comp_unit_info->oso_sp->module_sp.get();
471 bool SymbolFileDWARFDebugMap::GetFileSpecForSO(uint32_t oso_idx,
472 FileSpec &file_spec) {
473 if (oso_idx < m_compile_unit_infos.size()) {
474 if (m_compile_unit_infos[oso_idx].so_file) {
475 file_spec = m_compile_unit_infos[oso_idx].so_file;
482 ObjectFile *SymbolFileDWARFDebugMap::GetObjectFileByOSOIndex(uint32_t oso_idx) {
483 Module *oso_module = GetModuleByOSOIndex(oso_idx);
485 return oso_module->GetObjectFile();
490 SymbolFileDWARFDebugMap::GetSymbolFile(const SymbolContext &sc) {
491 return GetSymbolFile(*sc.comp_unit);
495 SymbolFileDWARFDebugMap::GetSymbolFile(const CompileUnit &comp_unit) {
496 CompileUnitInfo *comp_unit_info = GetCompUnitInfo(comp_unit);
498 return GetSymbolFileByCompUnitInfo(comp_unit_info);
502 ObjectFile *SymbolFileDWARFDebugMap::GetObjectFileByCompUnitInfo(
503 CompileUnitInfo *comp_unit_info) {
504 Module *oso_module = GetModuleByCompUnitInfo(comp_unit_info);
506 return oso_module->GetObjectFile();
510 uint32_t SymbolFileDWARFDebugMap::GetCompUnitInfoIndex(
511 const CompileUnitInfo *comp_unit_info) {
512 if (!m_compile_unit_infos.empty()) {
513 const CompileUnitInfo *first_comp_unit_info = &m_compile_unit_infos.front();
514 const CompileUnitInfo *last_comp_unit_info = &m_compile_unit_infos.back();
515 if (first_comp_unit_info <= comp_unit_info &&
516 comp_unit_info <= last_comp_unit_info)
517 return comp_unit_info - first_comp_unit_info;
523 SymbolFileDWARFDebugMap::GetSymbolFileByOSOIndex(uint32_t oso_idx) {
524 unsigned size = m_compile_unit_infos.size();
526 return GetSymbolFileByCompUnitInfo(&m_compile_unit_infos[oso_idx]);
531 SymbolFileDWARFDebugMap::GetSymbolFileAsSymbolFileDWARF(SymbolFile *sym_file) {
533 sym_file->GetPluginName() == SymbolFileDWARF::GetPluginNameStatic())
534 return (SymbolFileDWARF *)sym_file;
538 SymbolFileDWARF *SymbolFileDWARFDebugMap::GetSymbolFileByCompUnitInfo(
539 CompileUnitInfo *comp_unit_info) {
540 Module *oso_module = GetModuleByCompUnitInfo(comp_unit_info);
542 SymbolVendor *sym_vendor = oso_module->GetSymbolVendor();
544 return GetSymbolFileAsSymbolFileDWARF(sym_vendor->GetSymbolFile());
549 uint32_t SymbolFileDWARFDebugMap::CalculateAbilities() {
550 // In order to get the abilities of this plug-in, we look at the list of
551 // N_OSO entries (object files) from the symbol table and make sure that
552 // these files exist and also contain valid DWARF. If we get any of that then
553 // we return the abilities of the first N_OSO's DWARF.
555 const uint32_t oso_index_count = GetNumCompileUnits();
556 if (oso_index_count > 0) {
558 if (!m_compile_unit_infos.empty()) {
559 return SymbolFile::CompileUnits | SymbolFile::Functions |
560 SymbolFile::Blocks | SymbolFile::GlobalVariables |
561 SymbolFile::LocalVariables | SymbolFile::VariableTypes |
562 SymbolFile::LineTables;
568 uint32_t SymbolFileDWARFDebugMap::GetNumCompileUnits() {
570 return m_compile_unit_infos.size();
573 CompUnitSP SymbolFileDWARFDebugMap::ParseCompileUnitAtIndex(uint32_t cu_idx) {
574 CompUnitSP comp_unit_sp;
575 const uint32_t cu_count = GetNumCompileUnits();
577 if (cu_idx < cu_count) {
578 Module *oso_module = GetModuleByCompUnitInfo(&m_compile_unit_infos[cu_idx]);
580 FileSpec so_file_spec;
581 if (GetFileSpecForSO(cu_idx, so_file_spec)) {
582 // User zero as the ID to match the compile unit at offset zero in each
583 // .o file since each .o file can only have one compile unit for now.
584 lldb::user_id_t cu_id = 0;
585 m_compile_unit_infos[cu_idx].compile_unit_sp.reset(
586 new CompileUnit(m_obj_file->GetModule(), NULL, so_file_spec, cu_id,
587 eLanguageTypeUnknown, eLazyBoolCalculate));
589 if (m_compile_unit_infos[cu_idx].compile_unit_sp) {
590 // Let our symbol vendor know about this compile unit
591 m_obj_file->GetModule()->GetSymbolVendor()->SetCompileUnitAtIndex(
592 cu_idx, m_compile_unit_infos[cu_idx].compile_unit_sp);
596 comp_unit_sp = m_compile_unit_infos[cu_idx].compile_unit_sp;
602 SymbolFileDWARFDebugMap::CompileUnitInfo *
603 SymbolFileDWARFDebugMap::GetCompUnitInfo(const SymbolContext &sc) {
604 return GetCompUnitInfo(*sc.comp_unit);
607 SymbolFileDWARFDebugMap::CompileUnitInfo *
608 SymbolFileDWARFDebugMap::GetCompUnitInfo(const CompileUnit &comp_unit) {
609 const uint32_t cu_count = GetNumCompileUnits();
610 for (uint32_t i = 0; i < cu_count; ++i) {
611 if (comp_unit == m_compile_unit_infos[i].compile_unit_sp.get())
612 return &m_compile_unit_infos[i];
617 size_t SymbolFileDWARFDebugMap::GetCompUnitInfosForModule(
618 const lldb_private::Module *module,
619 std::vector<CompileUnitInfo *> &cu_infos) {
620 const uint32_t cu_count = GetNumCompileUnits();
621 for (uint32_t i = 0; i < cu_count; ++i) {
622 if (module == GetModuleByCompUnitInfo(&m_compile_unit_infos[i]))
623 cu_infos.push_back(&m_compile_unit_infos[i]);
625 return cu_infos.size();
629 SymbolFileDWARFDebugMap::ParseLanguage(CompileUnit &comp_unit) {
630 SymbolFileDWARF *oso_dwarf = GetSymbolFile(comp_unit);
632 return oso_dwarf->ParseLanguage(comp_unit);
633 return eLanguageTypeUnknown;
636 size_t SymbolFileDWARFDebugMap::ParseFunctions(CompileUnit &comp_unit) {
637 SymbolFileDWARF *oso_dwarf = GetSymbolFile(comp_unit);
639 return oso_dwarf->ParseFunctions(comp_unit);
643 bool SymbolFileDWARFDebugMap::ParseLineTable(CompileUnit &comp_unit) {
644 SymbolFileDWARF *oso_dwarf = GetSymbolFile(comp_unit);
646 return oso_dwarf->ParseLineTable(comp_unit);
650 bool SymbolFileDWARFDebugMap::ParseDebugMacros(CompileUnit &comp_unit) {
651 SymbolFileDWARF *oso_dwarf = GetSymbolFile(comp_unit);
653 return oso_dwarf->ParseDebugMacros(comp_unit);
657 bool SymbolFileDWARFDebugMap::ParseSupportFiles(CompileUnit &comp_unit,
658 FileSpecList &support_files) {
659 SymbolFileDWARF *oso_dwarf = GetSymbolFile(comp_unit);
661 return oso_dwarf->ParseSupportFiles(comp_unit, support_files);
665 bool SymbolFileDWARFDebugMap::ParseIsOptimized(CompileUnit &comp_unit) {
666 SymbolFileDWARF *oso_dwarf = GetSymbolFile(comp_unit);
668 return oso_dwarf->ParseIsOptimized(comp_unit);
672 bool SymbolFileDWARFDebugMap::ParseImportedModules(
673 const SymbolContext &sc, std::vector<ConstString> &imported_modules) {
674 SymbolFileDWARF *oso_dwarf = GetSymbolFile(sc);
676 return oso_dwarf->ParseImportedModules(sc, imported_modules);
680 size_t SymbolFileDWARFDebugMap::ParseBlocksRecursive(Function &func) {
681 CompileUnit *comp_unit = func.GetCompileUnit();
685 SymbolFileDWARF *oso_dwarf = GetSymbolFile(*comp_unit);
687 return oso_dwarf->ParseBlocksRecursive(func);
691 size_t SymbolFileDWARFDebugMap::ParseTypes(CompileUnit &comp_unit) {
692 SymbolFileDWARF *oso_dwarf = GetSymbolFile(comp_unit);
694 return oso_dwarf->ParseTypes(comp_unit);
699 SymbolFileDWARFDebugMap::ParseVariablesForContext(const SymbolContext &sc) {
700 SymbolFileDWARF *oso_dwarf = GetSymbolFile(sc);
702 return oso_dwarf->ParseVariablesForContext(sc);
706 Type *SymbolFileDWARFDebugMap::ResolveTypeUID(lldb::user_id_t type_uid) {
707 const uint64_t oso_idx = GetOSOIndexFromUserID(type_uid);
708 SymbolFileDWARF *oso_dwarf = GetSymbolFileByOSOIndex(oso_idx);
710 return oso_dwarf->ResolveTypeUID(type_uid);
714 llvm::Optional<SymbolFile::ArrayInfo>
715 SymbolFileDWARFDebugMap::GetDynamicArrayInfoForUID(
716 lldb::user_id_t type_uid, const lldb_private::ExecutionContext *exe_ctx) {
717 const uint64_t oso_idx = GetOSOIndexFromUserID(type_uid);
718 SymbolFileDWARF *oso_dwarf = GetSymbolFileByOSOIndex(oso_idx);
720 return oso_dwarf->GetDynamicArrayInfoForUID(type_uid, exe_ctx);
724 bool SymbolFileDWARFDebugMap::CompleteType(CompilerType &compiler_type) {
725 bool success = false;
727 ForEachSymbolFile([&](SymbolFileDWARF *oso_dwarf) -> bool {
728 if (oso_dwarf->HasForwardDeclForClangType(compiler_type)) {
729 oso_dwarf->CompleteType(compiler_type);
740 SymbolFileDWARFDebugMap::ResolveSymbolContext(const Address &exe_so_addr,
741 SymbolContextItem resolve_scope,
743 uint32_t resolved_flags = 0;
744 Symtab *symtab = m_obj_file->GetSymtab();
746 const addr_t exe_file_addr = exe_so_addr.GetFileAddress();
748 const DebugMap::Entry *debug_map_entry =
749 m_debug_map.FindEntryThatContains(exe_file_addr);
750 if (debug_map_entry) {
753 symtab->SymbolAtIndex(debug_map_entry->data.GetExeSymbolIndex());
755 if (sc.symbol != NULL) {
756 resolved_flags |= eSymbolContextSymbol;
758 uint32_t oso_idx = 0;
759 CompileUnitInfo *comp_unit_info =
760 GetCompileUnitInfoForSymbolWithID(sc.symbol->GetID(), &oso_idx);
761 if (comp_unit_info) {
762 comp_unit_info->GetFileRangeMap(this);
763 Module *oso_module = GetModuleByCompUnitInfo(comp_unit_info);
765 lldb::addr_t oso_file_addr =
766 exe_file_addr - debug_map_entry->GetRangeBase() +
767 debug_map_entry->data.GetOSOFileAddress();
769 if (oso_module->ResolveFileAddress(oso_file_addr, oso_so_addr)) {
771 oso_module->GetSymbolVendor()->ResolveSymbolContext(
772 oso_so_addr, resolve_scope, sc);
779 return resolved_flags;
782 uint32_t SymbolFileDWARFDebugMap::ResolveSymbolContext(
783 const FileSpec &file_spec, uint32_t line, bool check_inlines,
784 SymbolContextItem resolve_scope, SymbolContextList &sc_list) {
785 const uint32_t initial = sc_list.GetSize();
786 const uint32_t cu_count = GetNumCompileUnits();
788 for (uint32_t i = 0; i < cu_count; ++i) {
789 // If we are checking for inlines, then we need to look through all compile
790 // units no matter if "file_spec" matches.
791 bool resolve = check_inlines;
794 FileSpec so_file_spec;
795 if (GetFileSpecForSO(i, so_file_spec)) {
796 // Match the full path if the incoming file_spec has a directory (not
798 const bool full_match = (bool)file_spec.GetDirectory();
799 resolve = FileSpec::Equal(file_spec, so_file_spec, full_match);
803 SymbolFileDWARF *oso_dwarf = GetSymbolFileByOSOIndex(i);
805 oso_dwarf->ResolveSymbolContext(file_spec, line, check_inlines,
806 resolve_scope, sc_list);
809 return sc_list.GetSize() - initial;
812 uint32_t SymbolFileDWARFDebugMap::PrivateFindGlobalVariables(
813 const ConstString &name, const CompilerDeclContext *parent_decl_ctx,
814 const std::vector<uint32_t>
815 &indexes, // Indexes into the symbol table that match "name"
816 uint32_t max_matches, VariableList &variables) {
817 const uint32_t original_size = variables.GetSize();
818 const size_t match_count = indexes.size();
819 for (size_t i = 0; i < match_count; ++i) {
821 CompileUnitInfo *comp_unit_info =
822 GetCompileUnitInfoForSymbolWithIndex(indexes[i], &oso_idx);
823 if (comp_unit_info) {
824 SymbolFileDWARF *oso_dwarf = GetSymbolFileByOSOIndex(oso_idx);
826 if (oso_dwarf->FindGlobalVariables(name, parent_decl_ctx, max_matches,
828 if (variables.GetSize() > max_matches)
833 return variables.GetSize() - original_size;
836 uint32_t SymbolFileDWARFDebugMap::FindGlobalVariables(
837 const ConstString &name, const CompilerDeclContext *parent_decl_ctx,
838 uint32_t max_matches, VariableList &variables) {
840 // Remember how many variables are in the list before we search.
841 const uint32_t original_size = variables.GetSize();
843 uint32_t total_matches = 0;
845 ForEachSymbolFile([&](SymbolFileDWARF *oso_dwarf) -> bool {
846 const uint32_t oso_matches = oso_dwarf->FindGlobalVariables(
847 name, parent_decl_ctx, max_matches, variables);
848 if (oso_matches > 0) {
849 total_matches += oso_matches;
851 // Are we getting all matches?
852 if (max_matches == UINT32_MAX)
853 return false; // Yep, continue getting everything
855 // If we have found enough matches, lets get out
856 if (max_matches >= total_matches)
859 // Update the max matches for any subsequent calls to find globals in any
860 // other object files with DWARF
861 max_matches -= oso_matches;
867 // Return the number of variable that were appended to the list
868 return variables.GetSize() - original_size;
872 SymbolFileDWARFDebugMap::FindGlobalVariables(const RegularExpression ®ex,
873 uint32_t max_matches,
874 VariableList &variables) {
875 // Remember how many variables are in the list before we search.
876 const uint32_t original_size = variables.GetSize();
878 uint32_t total_matches = 0;
879 ForEachSymbolFile([&](SymbolFileDWARF *oso_dwarf) -> bool {
880 const uint32_t oso_matches =
881 oso_dwarf->FindGlobalVariables(regex, max_matches, variables);
882 if (oso_matches > 0) {
883 total_matches += oso_matches;
885 // Are we getting all matches?
886 if (max_matches == UINT32_MAX)
887 return false; // Yep, continue getting everything
889 // If we have found enough matches, lets get out
890 if (max_matches >= total_matches)
893 // Update the max matches for any subsequent calls to find globals in any
894 // other object files with DWARF
895 max_matches -= oso_matches;
901 // Return the number of variable that were appended to the list
902 return variables.GetSize() - original_size;
905 int SymbolFileDWARFDebugMap::SymbolContainsSymbolWithIndex(
906 uint32_t *symbol_idx_ptr, const CompileUnitInfo *comp_unit_info) {
907 const uint32_t symbol_idx = *symbol_idx_ptr;
909 if (symbol_idx < comp_unit_info->first_symbol_index)
912 if (symbol_idx <= comp_unit_info->last_symbol_index)
918 int SymbolFileDWARFDebugMap::SymbolContainsSymbolWithID(
919 user_id_t *symbol_idx_ptr, const CompileUnitInfo *comp_unit_info) {
920 const user_id_t symbol_id = *symbol_idx_ptr;
922 if (symbol_id < comp_unit_info->first_symbol_id)
925 if (symbol_id <= comp_unit_info->last_symbol_id)
931 SymbolFileDWARFDebugMap::CompileUnitInfo *
932 SymbolFileDWARFDebugMap::GetCompileUnitInfoForSymbolWithIndex(
933 uint32_t symbol_idx, uint32_t *oso_idx_ptr) {
934 const uint32_t oso_index_count = m_compile_unit_infos.size();
935 CompileUnitInfo *comp_unit_info = NULL;
936 if (oso_index_count) {
937 comp_unit_info = (CompileUnitInfo *)bsearch(
938 &symbol_idx, &m_compile_unit_infos[0], m_compile_unit_infos.size(),
939 sizeof(CompileUnitInfo),
940 (ComparisonFunction)SymbolContainsSymbolWithIndex);
944 if (comp_unit_info != NULL)
945 *oso_idx_ptr = comp_unit_info - &m_compile_unit_infos[0];
947 *oso_idx_ptr = UINT32_MAX;
949 return comp_unit_info;
952 SymbolFileDWARFDebugMap::CompileUnitInfo *
953 SymbolFileDWARFDebugMap::GetCompileUnitInfoForSymbolWithID(
954 user_id_t symbol_id, uint32_t *oso_idx_ptr) {
955 const uint32_t oso_index_count = m_compile_unit_infos.size();
956 CompileUnitInfo *comp_unit_info = NULL;
957 if (oso_index_count) {
958 comp_unit_info = (CompileUnitInfo *)::bsearch(
959 &symbol_id, &m_compile_unit_infos[0], m_compile_unit_infos.size(),
960 sizeof(CompileUnitInfo),
961 (ComparisonFunction)SymbolContainsSymbolWithID);
965 if (comp_unit_info != NULL)
966 *oso_idx_ptr = comp_unit_info - &m_compile_unit_infos[0];
968 *oso_idx_ptr = UINT32_MAX;
970 return comp_unit_info;
973 static void RemoveFunctionsWithModuleNotEqualTo(const ModuleSP &module_sp,
974 SymbolContextList &sc_list,
975 uint32_t start_idx) {
976 // We found functions in .o files. Not all functions in the .o files will
977 // have made it into the final output file. The ones that did make it into
978 // the final output file will have a section whose module matches the module
979 // from the ObjectFile for this SymbolFile. When the modules don't match,
980 // then we have something that was in a .o file, but doesn't map to anything
981 // in the final executable.
982 uint32_t i = start_idx;
983 while (i < sc_list.GetSize()) {
985 sc_list.GetContextAtIndex(i, sc);
987 const SectionSP section_sp(
988 sc.function->GetAddressRange().GetBaseAddress().GetSection());
989 if (section_sp->GetModule() != module_sp) {
990 sc_list.RemoveContextAtIndex(i);
998 uint32_t SymbolFileDWARFDebugMap::FindFunctions(
999 const ConstString &name, const CompilerDeclContext *parent_decl_ctx,
1000 FunctionNameType name_type_mask, bool include_inlines, bool append,
1001 SymbolContextList &sc_list) {
1002 static Timer::Category func_cat(LLVM_PRETTY_FUNCTION);
1003 Timer scoped_timer(func_cat,
1004 "SymbolFileDWARFDebugMap::FindFunctions (name = %s)",
1007 uint32_t initial_size = 0;
1009 initial_size = sc_list.GetSize();
1013 ForEachSymbolFile([&](SymbolFileDWARF *oso_dwarf) -> bool {
1014 uint32_t sc_idx = sc_list.GetSize();
1015 if (oso_dwarf->FindFunctions(name, parent_decl_ctx, name_type_mask,
1016 include_inlines, true, sc_list)) {
1017 RemoveFunctionsWithModuleNotEqualTo(m_obj_file->GetModule(), sc_list,
1023 return sc_list.GetSize() - initial_size;
1026 uint32_t SymbolFileDWARFDebugMap::FindFunctions(const RegularExpression ®ex,
1027 bool include_inlines,
1029 SymbolContextList &sc_list) {
1030 static Timer::Category func_cat(LLVM_PRETTY_FUNCTION);
1031 Timer scoped_timer(func_cat,
1032 "SymbolFileDWARFDebugMap::FindFunctions (regex = '%s')",
1033 regex.GetText().str().c_str());
1035 uint32_t initial_size = 0;
1037 initial_size = sc_list.GetSize();
1041 ForEachSymbolFile([&](SymbolFileDWARF *oso_dwarf) -> bool {
1042 uint32_t sc_idx = sc_list.GetSize();
1044 if (oso_dwarf->FindFunctions(regex, include_inlines, true, sc_list)) {
1045 RemoveFunctionsWithModuleNotEqualTo(m_obj_file->GetModule(), sc_list,
1051 return sc_list.GetSize() - initial_size;
1054 size_t SymbolFileDWARFDebugMap::GetTypes(SymbolContextScope *sc_scope,
1055 lldb::TypeClass type_mask,
1056 TypeList &type_list) {
1057 static Timer::Category func_cat(LLVM_PRETTY_FUNCTION);
1058 Timer scoped_timer(func_cat,
1059 "SymbolFileDWARFDebugMap::GetTypes (type_mask = 0x%8.8x)",
1062 uint32_t initial_size = type_list.GetSize();
1063 SymbolFileDWARF *oso_dwarf = NULL;
1066 sc_scope->CalculateSymbolContext(&sc);
1068 CompileUnitInfo *cu_info = GetCompUnitInfo(sc);
1070 oso_dwarf = GetSymbolFileByCompUnitInfo(cu_info);
1072 oso_dwarf->GetTypes(sc_scope, type_mask, type_list);
1075 ForEachSymbolFile([&](SymbolFileDWARF *oso_dwarf) -> bool {
1076 oso_dwarf->GetTypes(sc_scope, type_mask, type_list);
1080 return type_list.GetSize() - initial_size;
1083 std::vector<lldb_private::CallEdge>
1084 SymbolFileDWARFDebugMap::ParseCallEdgesInFunction(UserID func_id) {
1085 uint32_t oso_idx = GetOSOIndexFromUserID(func_id.GetID());
1086 SymbolFileDWARF *oso_dwarf = GetSymbolFileByOSOIndex(oso_idx);
1088 return oso_dwarf->ParseCallEdgesInFunction(func_id);
1092 TypeSP SymbolFileDWARFDebugMap::FindDefinitionTypeForDWARFDeclContext(
1093 const DWARFDeclContext &die_decl_ctx) {
1095 ForEachSymbolFile([&](SymbolFileDWARF *oso_dwarf) -> bool {
1096 type_sp = oso_dwarf->FindDefinitionTypeForDWARFDeclContext(die_decl_ctx);
1097 return ((bool)type_sp);
1102 bool SymbolFileDWARFDebugMap::Supports_DW_AT_APPLE_objc_complete_type(
1103 SymbolFileDWARF *skip_dwarf_oso) {
1104 if (m_supports_DW_AT_APPLE_objc_complete_type == eLazyBoolCalculate) {
1105 m_supports_DW_AT_APPLE_objc_complete_type = eLazyBoolNo;
1106 ForEachSymbolFile([&](SymbolFileDWARF *oso_dwarf) -> bool {
1107 if (skip_dwarf_oso != oso_dwarf &&
1108 oso_dwarf->Supports_DW_AT_APPLE_objc_complete_type(NULL)) {
1109 m_supports_DW_AT_APPLE_objc_complete_type = eLazyBoolYes;
1115 return m_supports_DW_AT_APPLE_objc_complete_type == eLazyBoolYes;
1118 TypeSP SymbolFileDWARFDebugMap::FindCompleteObjCDefinitionTypeForDIE(
1119 const DWARFDIE &die, const ConstString &type_name,
1120 bool must_be_implementation) {
1121 // If we have a debug map, we will have an Objective-C symbol whose name is
1122 // the type name and whose type is eSymbolTypeObjCClass. If we can find that
1123 // symbol and find its containing parent, we can locate the .o file that will
1124 // contain the implementation definition since it will be scoped inside the
1125 // N_SO and we can then locate the SymbolFileDWARF that corresponds to that
1127 SymbolFileDWARF *oso_dwarf = NULL;
1129 ObjectFile *module_objfile = m_obj_file->GetModule()->GetObjectFile();
1130 if (module_objfile) {
1131 Symtab *symtab = module_objfile->GetSymtab();
1133 Symbol *objc_class_symbol = symtab->FindFirstSymbolWithNameAndType(
1134 type_name, eSymbolTypeObjCClass, Symtab::eDebugAny,
1135 Symtab::eVisibilityAny);
1136 if (objc_class_symbol) {
1137 // Get the N_SO symbol that contains the objective C class symbol as
1138 // this should be the .o file that contains the real definition...
1139 const Symbol *source_file_symbol = symtab->GetParent(objc_class_symbol);
1141 if (source_file_symbol &&
1142 source_file_symbol->GetType() == eSymbolTypeSourceFile) {
1143 const uint32_t source_file_symbol_idx =
1144 symtab->GetIndexForSymbol(source_file_symbol);
1145 if (source_file_symbol_idx != UINT32_MAX) {
1146 CompileUnitInfo *compile_unit_info =
1147 GetCompileUnitInfoForSymbolWithIndex(source_file_symbol_idx,
1149 if (compile_unit_info) {
1150 oso_dwarf = GetSymbolFileByCompUnitInfo(compile_unit_info);
1152 TypeSP type_sp(oso_dwarf->FindCompleteObjCDefinitionTypeForDIE(
1153 die, type_name, must_be_implementation));
1165 // Only search all .o files for the definition if we don't need the
1166 // implementation because otherwise, with a valid debug map we should have
1167 // the ObjC class symbol and the code above should have found it.
1168 if (!must_be_implementation) {
1171 ForEachSymbolFile([&](SymbolFileDWARF *oso_dwarf) -> bool {
1172 type_sp = oso_dwarf->FindCompleteObjCDefinitionTypeForDIE(
1173 die, type_name, must_be_implementation);
1174 return (bool)type_sp;
1182 uint32_t SymbolFileDWARFDebugMap::FindTypes(
1183 const ConstString &name, const CompilerDeclContext *parent_decl_ctx,
1184 bool append, uint32_t max_matches,
1185 llvm::DenseSet<lldb_private::SymbolFile *> &searched_symbol_files,
1190 const uint32_t initial_types_size = types.GetSize();
1192 ForEachSymbolFile([&](SymbolFileDWARF *oso_dwarf) -> bool {
1193 oso_dwarf->FindTypes(name, parent_decl_ctx, append, max_matches,
1194 searched_symbol_files, types);
1195 return types.GetSize() >= max_matches;
1198 return types.GetSize() - initial_types_size;
1203 // SymbolFileDWARFDebugMap::FindTypes (const SymbolContext& sc, const
1204 // RegularExpression& regex, bool append, uint32_t max_matches, Type::Encoding
1205 // encoding, lldb::user_id_t udt_uid, TypeList& types)
1207 // SymbolFileDWARF *oso_dwarf = GetSymbolFile (sc);
1209 // return oso_dwarf->FindTypes (sc, regex, append, max_matches, encoding,
1214 CompilerDeclContext SymbolFileDWARFDebugMap::FindNamespace(
1215 const lldb_private::ConstString &name,
1216 const CompilerDeclContext *parent_decl_ctx) {
1217 CompilerDeclContext matching_namespace;
1219 ForEachSymbolFile([&](SymbolFileDWARF *oso_dwarf) -> bool {
1220 matching_namespace = oso_dwarf->FindNamespace(name, parent_decl_ctx);
1222 return (bool)matching_namespace;
1225 return matching_namespace;
1228 void SymbolFileDWARFDebugMap::DumpClangAST(Stream &s) {
1229 ForEachSymbolFile([&s](SymbolFileDWARF *oso_dwarf) -> bool {
1230 oso_dwarf->DumpClangAST(s);
1235 //------------------------------------------------------------------
1236 // PluginInterface protocol
1237 //------------------------------------------------------------------
1238 lldb_private::ConstString SymbolFileDWARFDebugMap::GetPluginName() {
1239 return GetPluginNameStatic();
1242 uint32_t SymbolFileDWARFDebugMap::GetPluginVersion() { return 1; }
1245 SymbolFileDWARFDebugMap::GetCompileUnit(SymbolFileDWARF *oso_dwarf) {
1247 const uint32_t cu_count = GetNumCompileUnits();
1248 for (uint32_t cu_idx = 0; cu_idx < cu_count; ++cu_idx) {
1249 SymbolFileDWARF *oso_symfile =
1250 GetSymbolFileByCompUnitInfo(&m_compile_unit_infos[cu_idx]);
1251 if (oso_symfile == oso_dwarf) {
1252 if (!m_compile_unit_infos[cu_idx].compile_unit_sp)
1253 m_compile_unit_infos[cu_idx].compile_unit_sp =
1254 ParseCompileUnitAtIndex(cu_idx);
1256 return m_compile_unit_infos[cu_idx].compile_unit_sp;
1260 llvm_unreachable("this shouldn't happen");
1263 SymbolFileDWARFDebugMap::CompileUnitInfo *
1264 SymbolFileDWARFDebugMap::GetCompileUnitInfo(SymbolFileDWARF *oso_dwarf) {
1266 const uint32_t cu_count = GetNumCompileUnits();
1267 for (uint32_t cu_idx = 0; cu_idx < cu_count; ++cu_idx) {
1268 SymbolFileDWARF *oso_symfile =
1269 GetSymbolFileByCompUnitInfo(&m_compile_unit_infos[cu_idx]);
1270 if (oso_symfile == oso_dwarf) {
1271 return &m_compile_unit_infos[cu_idx];
1278 void SymbolFileDWARFDebugMap::SetCompileUnit(SymbolFileDWARF *oso_dwarf,
1279 const CompUnitSP &cu_sp) {
1281 const uint32_t cu_count = GetNumCompileUnits();
1282 for (uint32_t cu_idx = 0; cu_idx < cu_count; ++cu_idx) {
1283 SymbolFileDWARF *oso_symfile =
1284 GetSymbolFileByCompUnitInfo(&m_compile_unit_infos[cu_idx]);
1285 if (oso_symfile == oso_dwarf) {
1286 if (m_compile_unit_infos[cu_idx].compile_unit_sp) {
1287 assert(m_compile_unit_infos[cu_idx].compile_unit_sp.get() ==
1290 m_compile_unit_infos[cu_idx].compile_unit_sp = cu_sp;
1291 m_obj_file->GetModule()->GetSymbolVendor()->SetCompileUnitAtIndex(
1300 SymbolFileDWARFDebugMap::GetDeclContextForUID(lldb::user_id_t type_uid) {
1301 const uint64_t oso_idx = GetOSOIndexFromUserID(type_uid);
1302 SymbolFileDWARF *oso_dwarf = GetSymbolFileByOSOIndex(oso_idx);
1304 return oso_dwarf->GetDeclContextForUID(type_uid);
1305 return CompilerDeclContext();
1309 SymbolFileDWARFDebugMap::GetDeclContextContainingUID(lldb::user_id_t type_uid) {
1310 const uint64_t oso_idx = GetOSOIndexFromUserID(type_uid);
1311 SymbolFileDWARF *oso_dwarf = GetSymbolFileByOSOIndex(oso_idx);
1313 return oso_dwarf->GetDeclContextContainingUID(type_uid);
1314 return CompilerDeclContext();
1317 void SymbolFileDWARFDebugMap::ParseDeclsForContext(
1318 lldb_private::CompilerDeclContext decl_ctx) {
1319 ForEachSymbolFile([&](SymbolFileDWARF *oso_dwarf) -> bool {
1320 oso_dwarf->ParseDeclsForContext(decl_ctx);
1321 return true; // Keep iterating
1325 bool SymbolFileDWARFDebugMap::AddOSOFileRange(CompileUnitInfo *cu_info,
1326 lldb::addr_t exe_file_addr,
1327 lldb::addr_t exe_byte_size,
1328 lldb::addr_t oso_file_addr,
1329 lldb::addr_t oso_byte_size) {
1330 const uint32_t debug_map_idx =
1331 m_debug_map.FindEntryIndexThatContains(exe_file_addr);
1332 if (debug_map_idx != UINT32_MAX) {
1333 DebugMap::Entry *debug_map_entry =
1334 m_debug_map.FindEntryThatContains(exe_file_addr);
1335 debug_map_entry->data.SetOSOFileAddress(oso_file_addr);
1336 addr_t range_size = std::min<addr_t>(exe_byte_size, oso_byte_size);
1337 if (range_size == 0) {
1338 range_size = std::max<addr_t>(exe_byte_size, oso_byte_size);
1339 if (range_size == 0)
1342 cu_info->file_range_map.Append(
1343 FileRangeMap::Entry(oso_file_addr, range_size, exe_file_addr));
1349 void SymbolFileDWARFDebugMap::FinalizeOSOFileRanges(CompileUnitInfo *cu_info) {
1350 cu_info->file_range_map.Sort();
1351 #if defined(DEBUG_OSO_DMAP)
1352 const FileRangeMap &oso_file_range_map = cu_info->GetFileRangeMap(this);
1353 const size_t n = oso_file_range_map.GetSize();
1354 printf("SymbolFileDWARFDebugMap::FinalizeOSOFileRanges (cu_info = %p) %s\n",
1355 cu_info, cu_info->oso_sp->module_sp->GetFileSpec().GetPath().c_str());
1356 for (size_t i = 0; i < n; ++i) {
1357 const FileRangeMap::Entry &entry = oso_file_range_map.GetEntryRef(i);
1358 printf("oso [0x%16.16" PRIx64 " - 0x%16.16" PRIx64
1359 ") ==> exe [0x%16.16" PRIx64 " - 0x%16.16" PRIx64 ")\n",
1360 entry.GetRangeBase(), entry.GetRangeEnd(), entry.data,
1361 entry.data + entry.GetByteSize());
1367 SymbolFileDWARFDebugMap::LinkOSOFileAddress(SymbolFileDWARF *oso_symfile,
1368 lldb::addr_t oso_file_addr) {
1369 CompileUnitInfo *cu_info = GetCompileUnitInfo(oso_symfile);
1371 const FileRangeMap::Entry *oso_range_entry =
1372 cu_info->GetFileRangeMap(this).FindEntryThatContains(oso_file_addr);
1373 if (oso_range_entry) {
1374 const DebugMap::Entry *debug_map_entry =
1375 m_debug_map.FindEntryThatContains(oso_range_entry->data);
1376 if (debug_map_entry) {
1377 const lldb::addr_t offset =
1378 oso_file_addr - oso_range_entry->GetRangeBase();
1379 const lldb::addr_t exe_file_addr =
1380 debug_map_entry->GetRangeBase() + offset;
1381 return exe_file_addr;
1385 return LLDB_INVALID_ADDRESS;
1388 bool SymbolFileDWARFDebugMap::LinkOSOAddress(Address &addr) {
1389 // Make sure this address hasn't been fixed already
1390 Module *exe_module = GetObjectFile()->GetModule().get();
1391 Module *addr_module = addr.GetModule().get();
1392 if (addr_module == exe_module)
1393 return true; // Address is already in terms of the main executable module
1395 CompileUnitInfo *cu_info = GetCompileUnitInfo(GetSymbolFileAsSymbolFileDWARF(
1396 addr_module->GetSymbolVendor()->GetSymbolFile()));
1398 const lldb::addr_t oso_file_addr = addr.GetFileAddress();
1399 const FileRangeMap::Entry *oso_range_entry =
1400 cu_info->GetFileRangeMap(this).FindEntryThatContains(oso_file_addr);
1401 if (oso_range_entry) {
1402 const DebugMap::Entry *debug_map_entry =
1403 m_debug_map.FindEntryThatContains(oso_range_entry->data);
1404 if (debug_map_entry) {
1405 const lldb::addr_t offset =
1406 oso_file_addr - oso_range_entry->GetRangeBase();
1407 const lldb::addr_t exe_file_addr =
1408 debug_map_entry->GetRangeBase() + offset;
1409 return exe_module->ResolveFileAddress(exe_file_addr, addr);
1416 LineTable *SymbolFileDWARFDebugMap::LinkOSOLineTable(SymbolFileDWARF *oso_dwarf,
1417 LineTable *line_table) {
1418 CompileUnitInfo *cu_info = GetCompileUnitInfo(oso_dwarf);
1420 return line_table->LinkLineTable(cu_info->GetFileRangeMap(this));
1425 SymbolFileDWARFDebugMap::AddOSOARanges(SymbolFileDWARF *dwarf2Data,
1426 DWARFDebugAranges *debug_aranges) {
1427 size_t num_line_entries_added = 0;
1428 if (debug_aranges && dwarf2Data) {
1429 CompileUnitInfo *compile_unit_info = GetCompileUnitInfo(dwarf2Data);
1430 if (compile_unit_info) {
1431 const FileRangeMap &file_range_map =
1432 compile_unit_info->GetFileRangeMap(this);
1433 for (size_t idx = 0; idx < file_range_map.GetSize(); idx++) {
1434 const FileRangeMap::Entry *entry = file_range_map.GetEntryAtIndex(idx);
1436 debug_aranges->AppendRange(dwarf2Data->GetID(), entry->GetRangeBase(),
1437 entry->GetRangeEnd());
1438 num_line_entries_added++;
1443 return num_line_entries_added;