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1449 lines
54 KiB
1449 lines
54 KiB
4 months ago
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//===-- SymbolFileDWARFDebugMap.cpp ---------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "SymbolFileDWARFDebugMap.h"
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#include "DWARFDebugAranges.h"
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#include "lldb/Core/Module.h"
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#include "lldb/Core/ModuleList.h"
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#include "lldb/Core/PluginManager.h"
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#include "lldb/Core/Section.h"
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#include "lldb/Host/FileSystem.h"
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#include "lldb/Utility/RangeMap.h"
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#include "lldb/Utility/RegularExpression.h"
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#include "lldb/Utility/Timer.h"
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//#define DEBUG_OSO_DMAP // DO NOT CHECKIN WITH THIS NOT COMMENTED OUT
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#if defined(DEBUG_OSO_DMAP)
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#include "lldb/Core/StreamFile.h"
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#endif
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#include "lldb/Symbol/CompileUnit.h"
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#include "lldb/Symbol/LineTable.h"
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#include "lldb/Symbol/ObjectFile.h"
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#include "lldb/Symbol/SymbolVendor.h"
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#include "lldb/Symbol/TypeMap.h"
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#include "lldb/Symbol/VariableList.h"
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#include "llvm/Support/ScopedPrinter.h"
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#include "LogChannelDWARF.h"
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#include "SymbolFileDWARF.h"
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#include <memory>
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using namespace lldb;
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using namespace lldb_private;
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char SymbolFileDWARFDebugMap::ID;
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// Subclass lldb_private::Module so we can intercept the
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// "Module::GetObjectFile()" (so we can fixup the object file sections) and
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// also for "Module::GetSymbolFile()" (so we can fixup the symbol file id.
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const SymbolFileDWARFDebugMap::FileRangeMap &
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SymbolFileDWARFDebugMap::CompileUnitInfo::GetFileRangeMap(
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SymbolFileDWARFDebugMap *exe_symfile) {
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if (file_range_map_valid)
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return file_range_map;
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file_range_map_valid = true;
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Module *oso_module = exe_symfile->GetModuleByCompUnitInfo(this);
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if (!oso_module)
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return file_range_map;
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ObjectFile *oso_objfile = oso_module->GetObjectFile();
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if (!oso_objfile)
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return file_range_map;
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Log *log(LogChannelDWARF::GetLogIfAll(DWARF_LOG_DEBUG_MAP));
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LLDB_LOGF(
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log,
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"%p: SymbolFileDWARFDebugMap::CompileUnitInfo::GetFileRangeMap ('%s')",
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static_cast<void *>(this),
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oso_module->GetSpecificationDescription().c_str());
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std::vector<SymbolFileDWARFDebugMap::CompileUnitInfo *> cu_infos;
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if (exe_symfile->GetCompUnitInfosForModule(oso_module, cu_infos)) {
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for (auto comp_unit_info : cu_infos) {
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Symtab *exe_symtab = exe_symfile->GetObjectFile()->GetSymtab();
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ModuleSP oso_module_sp(oso_objfile->GetModule());
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Symtab *oso_symtab = oso_objfile->GetSymtab();
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/// const uint32_t fun_resolve_flags = SymbolContext::Module |
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/// eSymbolContextCompUnit | eSymbolContextFunction;
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// SectionList *oso_sections = oso_objfile->Sections();
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// Now we need to make sections that map from zero based object file
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// addresses to where things ended up in the main executable.
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assert(comp_unit_info->first_symbol_index != UINT32_MAX);
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// End index is one past the last valid symbol index
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const uint32_t oso_end_idx = comp_unit_info->last_symbol_index + 1;
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for (uint32_t idx = comp_unit_info->first_symbol_index +
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2; // Skip the N_SO and N_OSO
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idx < oso_end_idx; ++idx) {
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Symbol *exe_symbol = exe_symtab->SymbolAtIndex(idx);
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if (exe_symbol) {
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if (!exe_symbol->IsDebug())
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continue;
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switch (exe_symbol->GetType()) {
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default:
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break;
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case eSymbolTypeCode: {
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// For each N_FUN, or function that we run into in the debug map we
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// make a new section that we add to the sections found in the .o
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// file. This new section has the file address set to what the
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// addresses are in the .o file, and the load address is adjusted
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// to match where it ended up in the final executable! We do this
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// before we parse any dwarf info so that when it goes get parsed
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// all section/offset addresses that get registered will resolve
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// correctly to the new addresses in the main executable.
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// First we find the original symbol in the .o file's symbol table
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Symbol *oso_fun_symbol = oso_symtab->FindFirstSymbolWithNameAndType(
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exe_symbol->GetMangled().GetName(Mangled::ePreferMangled),
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eSymbolTypeCode, Symtab::eDebugNo, Symtab::eVisibilityAny);
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if (oso_fun_symbol) {
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// Add the inverse OSO file address to debug map entry mapping
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exe_symfile->AddOSOFileRange(
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this, exe_symbol->GetAddressRef().GetFileAddress(),
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exe_symbol->GetByteSize(),
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oso_fun_symbol->GetAddressRef().GetFileAddress(),
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oso_fun_symbol->GetByteSize());
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}
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} break;
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case eSymbolTypeData: {
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// For each N_GSYM we remap the address for the global by making a
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// new section that we add to the sections found in the .o file.
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// This new section has the file address set to what the addresses
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// are in the .o file, and the load address is adjusted to match
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// where it ended up in the final executable! We do this before we
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// parse any dwarf info so that when it goes get parsed all
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// section/offset addresses that get registered will resolve
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// correctly to the new addresses in the main executable. We
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// initially set the section size to be 1 byte, but will need to
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// fix up these addresses further after all globals have been
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// parsed to span the gaps, or we can find the global variable
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// sizes from the DWARF info as we are parsing.
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// Next we find the non-stab entry that corresponds to the N_GSYM
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// in the .o file
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Symbol *oso_gsym_symbol =
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oso_symtab->FindFirstSymbolWithNameAndType(
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exe_symbol->GetMangled().GetName(Mangled::ePreferMangled),
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eSymbolTypeData, Symtab::eDebugNo, Symtab::eVisibilityAny);
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if (exe_symbol && oso_gsym_symbol && exe_symbol->ValueIsAddress() &&
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oso_gsym_symbol->ValueIsAddress()) {
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// Add the inverse OSO file address to debug map entry mapping
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exe_symfile->AddOSOFileRange(
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this, exe_symbol->GetAddressRef().GetFileAddress(),
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exe_symbol->GetByteSize(),
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oso_gsym_symbol->GetAddressRef().GetFileAddress(),
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oso_gsym_symbol->GetByteSize());
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}
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} break;
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}
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}
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}
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exe_symfile->FinalizeOSOFileRanges(this);
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// We don't need the symbols anymore for the .o files
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oso_objfile->ClearSymtab();
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}
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}
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return file_range_map;
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}
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class DebugMapModule : public Module {
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public:
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DebugMapModule(const ModuleSP &exe_module_sp, uint32_t cu_idx,
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const FileSpec &file_spec, const ArchSpec &arch,
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const ConstString *object_name, off_t object_offset,
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const llvm::sys::TimePoint<> object_mod_time)
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: Module(file_spec, arch, object_name, object_offset, object_mod_time),
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m_exe_module_wp(exe_module_sp), m_cu_idx(cu_idx) {}
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~DebugMapModule() override = default;
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SymbolFile *
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GetSymbolFile(bool can_create = true,
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lldb_private::Stream *feedback_strm = nullptr) override {
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// Scope for locker
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if (m_symfile_up.get() || !can_create)
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return m_symfile_up ? m_symfile_up->GetSymbolFile() : nullptr;
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ModuleSP exe_module_sp(m_exe_module_wp.lock());
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if (exe_module_sp) {
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// Now get the object file outside of a locking scope
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ObjectFile *oso_objfile = GetObjectFile();
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if (oso_objfile) {
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std::lock_guard<std::recursive_mutex> guard(m_mutex);
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if (SymbolFile *symfile =
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Module::GetSymbolFile(can_create, feedback_strm)) {
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// Set a pointer to this class to set our OSO DWARF file know that
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// the DWARF is being used along with a debug map and that it will
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// have the remapped sections that we do below.
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SymbolFileDWARF *oso_symfile =
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SymbolFileDWARFDebugMap::GetSymbolFileAsSymbolFileDWARF(symfile);
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if (!oso_symfile)
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return nullptr;
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ObjectFile *exe_objfile = exe_module_sp->GetObjectFile();
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SymbolFile *exe_symfile = exe_module_sp->GetSymbolFile();
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if (exe_objfile && exe_symfile) {
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oso_symfile->SetDebugMapModule(exe_module_sp);
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// Set the ID of the symbol file DWARF to the index of the OSO
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// shifted left by 32 bits to provide a unique prefix for any
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// UserID's that get created in the symbol file.
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oso_symfile->SetID(((uint64_t)m_cu_idx + 1ull) << 32ull);
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}
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return symfile;
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}
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}
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}
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return nullptr;
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}
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protected:
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ModuleWP m_exe_module_wp;
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const uint32_t m_cu_idx;
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};
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void SymbolFileDWARFDebugMap::Initialize() {
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PluginManager::RegisterPlugin(GetPluginNameStatic(),
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GetPluginDescriptionStatic(), CreateInstance);
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}
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void SymbolFileDWARFDebugMap::Terminate() {
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PluginManager::UnregisterPlugin(CreateInstance);
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}
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lldb_private::ConstString SymbolFileDWARFDebugMap::GetPluginNameStatic() {
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static ConstString g_name("dwarf-debugmap");
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return g_name;
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}
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const char *SymbolFileDWARFDebugMap::GetPluginDescriptionStatic() {
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return "DWARF and DWARF3 debug symbol file reader (debug map).";
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}
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SymbolFile *SymbolFileDWARFDebugMap::CreateInstance(ObjectFileSP objfile_sp) {
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return new SymbolFileDWARFDebugMap(std::move(objfile_sp));
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}
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SymbolFileDWARFDebugMap::SymbolFileDWARFDebugMap(ObjectFileSP objfile_sp)
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: SymbolFile(std::move(objfile_sp)), m_flags(), m_compile_unit_infos(),
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m_func_indexes(), m_glob_indexes(),
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m_supports_DW_AT_APPLE_objc_complete_type(eLazyBoolCalculate) {}
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SymbolFileDWARFDebugMap::~SymbolFileDWARFDebugMap() {}
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void SymbolFileDWARFDebugMap::InitializeObject() {}
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void SymbolFileDWARFDebugMap::InitOSO() {
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if (m_flags.test(kHaveInitializedOSOs))
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return;
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m_flags.set(kHaveInitializedOSOs);
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// If the object file has been stripped, there is no sense in looking further
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// as all of the debug symbols for the debug map will not be available
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if (m_objfile_sp->IsStripped())
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return;
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// Also make sure the file type is some sort of executable. Core files, debug
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// info files (dSYM), object files (.o files), and stub libraries all can
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switch (m_objfile_sp->GetType()) {
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case ObjectFile::eTypeInvalid:
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case ObjectFile::eTypeCoreFile:
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case ObjectFile::eTypeDebugInfo:
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case ObjectFile::eTypeObjectFile:
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case ObjectFile::eTypeStubLibrary:
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case ObjectFile::eTypeUnknown:
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case ObjectFile::eTypeJIT:
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return;
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case ObjectFile::eTypeExecutable:
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case ObjectFile::eTypeDynamicLinker:
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case ObjectFile::eTypeSharedLibrary:
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break;
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}
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// In order to get the abilities of this plug-in, we look at the list of
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// N_OSO entries (object files) from the symbol table and make sure that
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// these files exist and also contain valid DWARF. If we get any of that then
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// we return the abilities of the first N_OSO's DWARF.
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Symtab *symtab = m_objfile_sp->GetSymtab();
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if (symtab) {
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Log *log(LogChannelDWARF::GetLogIfAll(DWARF_LOG_DEBUG_MAP));
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std::vector<uint32_t> oso_indexes;
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// When a mach-o symbol is encoded, the n_type field is encoded in bits
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// 23:16, and the n_desc field is encoded in bits 15:0.
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//
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// To find all N_OSO entries that are part of the DWARF + debug map we find
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// only object file symbols with the flags value as follows: bits 23:16 ==
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// 0x66 (N_OSO) bits 15: 0 == 0x0001 (specifies this is a debug map object
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// file)
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const uint32_t k_oso_symbol_flags_value = 0x660001u;
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const uint32_t oso_index_count =
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symtab->AppendSymbolIndexesWithTypeAndFlagsValue(
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eSymbolTypeObjectFile, k_oso_symbol_flags_value, oso_indexes);
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if (oso_index_count > 0) {
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symtab->AppendSymbolIndexesWithType(eSymbolTypeCode, Symtab::eDebugYes,
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Symtab::eVisibilityAny,
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m_func_indexes);
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symtab->AppendSymbolIndexesWithType(eSymbolTypeData, Symtab::eDebugYes,
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Symtab::eVisibilityAny,
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m_glob_indexes);
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symtab->SortSymbolIndexesByValue(m_func_indexes, true);
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symtab->SortSymbolIndexesByValue(m_glob_indexes, true);
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for (uint32_t sym_idx : m_func_indexes) {
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const Symbol *symbol = symtab->SymbolAtIndex(sym_idx);
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lldb::addr_t file_addr = symbol->GetAddressRef().GetFileAddress();
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lldb::addr_t byte_size = symbol->GetByteSize();
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DebugMap::Entry debug_map_entry(
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file_addr, byte_size, OSOEntry(sym_idx, LLDB_INVALID_ADDRESS));
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m_debug_map.Append(debug_map_entry);
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}
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for (uint32_t sym_idx : m_glob_indexes) {
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const Symbol *symbol = symtab->SymbolAtIndex(sym_idx);
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lldb::addr_t file_addr = symbol->GetAddressRef().GetFileAddress();
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lldb::addr_t byte_size = symbol->GetByteSize();
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DebugMap::Entry debug_map_entry(
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file_addr, byte_size, OSOEntry(sym_idx, LLDB_INVALID_ADDRESS));
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m_debug_map.Append(debug_map_entry);
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}
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m_debug_map.Sort();
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m_compile_unit_infos.resize(oso_index_count);
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for (uint32_t i = 0; i < oso_index_count; ++i) {
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const uint32_t so_idx = oso_indexes[i] - 1;
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const uint32_t oso_idx = oso_indexes[i];
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const Symbol *so_symbol = symtab->SymbolAtIndex(so_idx);
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const Symbol *oso_symbol = symtab->SymbolAtIndex(oso_idx);
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if (so_symbol && oso_symbol &&
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so_symbol->GetType() == eSymbolTypeSourceFile &&
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oso_symbol->GetType() == eSymbolTypeObjectFile) {
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m_compile_unit_infos[i].so_file.SetFile(
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so_symbol->GetName().AsCString(), FileSpec::Style::native);
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m_compile_unit_infos[i].oso_path = oso_symbol->GetName();
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m_compile_unit_infos[i].oso_mod_time =
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llvm::sys::toTimePoint(oso_symbol->GetIntegerValue(0));
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uint32_t sibling_idx = so_symbol->GetSiblingIndex();
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// The sibling index can't be less that or equal to the current index
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// "i"
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if (sibling_idx == UINT32_MAX) {
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m_objfile_sp->GetModule()->ReportError(
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"N_SO in symbol with UID %u has invalid sibling in debug map, "
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"please file a bug and attach the binary listed in this error",
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so_symbol->GetID());
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} else {
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const Symbol *last_symbol = symtab->SymbolAtIndex(sibling_idx - 1);
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m_compile_unit_infos[i].first_symbol_index = so_idx;
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m_compile_unit_infos[i].last_symbol_index = sibling_idx - 1;
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m_compile_unit_infos[i].first_symbol_id = so_symbol->GetID();
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m_compile_unit_infos[i].last_symbol_id = last_symbol->GetID();
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LLDB_LOGF(log, "Initialized OSO 0x%8.8x: file=%s", i,
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||
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oso_symbol->GetName().GetCString());
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||
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}
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||
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} else {
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||
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if (oso_symbol == nullptr)
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||
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m_objfile_sp->GetModule()->ReportError(
|
||
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"N_OSO symbol[%u] can't be found, please file a bug and attach "
|
||
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"the binary listed in this error",
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||
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oso_idx);
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||
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else if (so_symbol == nullptr)
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||
|
m_objfile_sp->GetModule()->ReportError(
|
||
|
"N_SO not found for N_OSO symbol[%u], please file a bug and "
|
||
|
"attach the binary listed in this error",
|
||
|
oso_idx);
|
||
|
else if (so_symbol->GetType() != eSymbolTypeSourceFile)
|
||
|
m_objfile_sp->GetModule()->ReportError(
|
||
|
"N_SO has incorrect symbol type (%u) for N_OSO symbol[%u], "
|
||
|
"please file a bug and attach the binary listed in this error",
|
||
|
so_symbol->GetType(), oso_idx);
|
||
|
else if (oso_symbol->GetType() != eSymbolTypeSourceFile)
|
||
|
m_objfile_sp->GetModule()->ReportError(
|
||
|
"N_OSO has incorrect symbol type (%u) for N_OSO symbol[%u], "
|
||
|
"please file a bug and attach the binary listed in this error",
|
||
|
oso_symbol->GetType(), oso_idx);
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
|
||
|
Module *SymbolFileDWARFDebugMap::GetModuleByOSOIndex(uint32_t oso_idx) {
|
||
|
const uint32_t cu_count = GetNumCompileUnits();
|
||
|
if (oso_idx < cu_count)
|
||
|
return GetModuleByCompUnitInfo(&m_compile_unit_infos[oso_idx]);
|
||
|
return nullptr;
|
||
|
}
|
||
|
|
||
|
Module *SymbolFileDWARFDebugMap::GetModuleByCompUnitInfo(
|
||
|
CompileUnitInfo *comp_unit_info) {
|
||
|
if (!comp_unit_info->oso_sp) {
|
||
|
auto pos = m_oso_map.find(
|
||
|
{comp_unit_info->oso_path, comp_unit_info->oso_mod_time});
|
||
|
if (pos != m_oso_map.end()) {
|
||
|
comp_unit_info->oso_sp = pos->second;
|
||
|
} else {
|
||
|
ObjectFile *obj_file = GetObjectFile();
|
||
|
comp_unit_info->oso_sp = std::make_shared<OSOInfo>();
|
||
|
m_oso_map[{comp_unit_info->oso_path, comp_unit_info->oso_mod_time}] =
|
||
|
comp_unit_info->oso_sp;
|
||
|
const char *oso_path = comp_unit_info->oso_path.GetCString();
|
||
|
FileSpec oso_file(oso_path);
|
||
|
ConstString oso_object;
|
||
|
if (FileSystem::Instance().Exists(oso_file)) {
|
||
|
FileSystem::Instance().Collect(oso_file);
|
||
|
// The modification time returned by the FS can have a higher precision
|
||
|
// than the one from the CU.
|
||
|
auto oso_mod_time = std::chrono::time_point_cast<std::chrono::seconds>(
|
||
|
FileSystem::Instance().GetModificationTime(oso_file));
|
||
|
// A timestamp of 0 means that the linker was in deterministic mode. In
|
||
|
// that case, we should skip the check against the filesystem last
|
||
|
// modification timestamp, since it will never match.
|
||
|
if (comp_unit_info->oso_mod_time != llvm::sys::TimePoint<>() &&
|
||
|
oso_mod_time != comp_unit_info->oso_mod_time) {
|
||
|
obj_file->GetModule()->ReportError(
|
||
|
"debug map object file '%s' has changed (actual time is "
|
||
|
"%s, debug map time is %s"
|
||
|
") since this executable was linked, file will be ignored",
|
||
|
oso_file.GetPath().c_str(), llvm::to_string(oso_mod_time).c_str(),
|
||
|
llvm::to_string(comp_unit_info->oso_mod_time).c_str());
|
||
|
return nullptr;
|
||
|
}
|
||
|
|
||
|
} else {
|
||
|
const bool must_exist = true;
|
||
|
|
||
|
if (!ObjectFile::SplitArchivePathWithObject(oso_path, oso_file,
|
||
|
oso_object, must_exist)) {
|
||
|
return nullptr;
|
||
|
}
|
||
|
}
|
||
|
// Always create a new module for .o files. Why? Because we use the debug
|
||
|
// map, to add new sections to each .o file and even though a .o file
|
||
|
// might not have changed, the sections that get added to the .o file can
|
||
|
// change.
|
||
|
ArchSpec oso_arch;
|
||
|
// Only adopt the architecture from the module (not the vendor or OS)
|
||
|
// since .o files for "i386-apple-ios" will historically show up as "i386
|
||
|
// -apple-macosx" due to the lack of a LC_VERSION_MIN_MACOSX or
|
||
|
// LC_VERSION_MIN_IPHONEOS load command...
|
||
|
oso_arch.SetTriple(m_objfile_sp->GetModule()
|
||
|
->GetArchitecture()
|
||
|
.GetTriple()
|
||
|
.getArchName()
|
||
|
.str()
|
||
|
.c_str());
|
||
|
comp_unit_info->oso_sp->module_sp = std::make_shared<DebugMapModule>(
|
||
|
obj_file->GetModule(), GetCompUnitInfoIndex(comp_unit_info), oso_file,
|
||
|
oso_arch, oso_object ? &oso_object : nullptr, 0,
|
||
|
oso_object ? comp_unit_info->oso_mod_time : llvm::sys::TimePoint<>());
|
||
|
}
|
||
|
}
|
||
|
if (comp_unit_info->oso_sp)
|
||
|
return comp_unit_info->oso_sp->module_sp.get();
|
||
|
return nullptr;
|
||
|
}
|
||
|
|
||
|
bool SymbolFileDWARFDebugMap::GetFileSpecForSO(uint32_t oso_idx,
|
||
|
FileSpec &file_spec) {
|
||
|
if (oso_idx < m_compile_unit_infos.size()) {
|
||
|
if (m_compile_unit_infos[oso_idx].so_file) {
|
||
|
file_spec = m_compile_unit_infos[oso_idx].so_file;
|
||
|
return true;
|
||
|
}
|
||
|
}
|
||
|
return false;
|
||
|
}
|
||
|
|
||
|
ObjectFile *SymbolFileDWARFDebugMap::GetObjectFileByOSOIndex(uint32_t oso_idx) {
|
||
|
Module *oso_module = GetModuleByOSOIndex(oso_idx);
|
||
|
if (oso_module)
|
||
|
return oso_module->GetObjectFile();
|
||
|
return nullptr;
|
||
|
}
|
||
|
|
||
|
SymbolFileDWARF *
|
||
|
SymbolFileDWARFDebugMap::GetSymbolFile(const SymbolContext &sc) {
|
||
|
return GetSymbolFile(*sc.comp_unit);
|
||
|
}
|
||
|
|
||
|
SymbolFileDWARF *
|
||
|
SymbolFileDWARFDebugMap::GetSymbolFile(const CompileUnit &comp_unit) {
|
||
|
CompileUnitInfo *comp_unit_info = GetCompUnitInfo(comp_unit);
|
||
|
if (comp_unit_info)
|
||
|
return GetSymbolFileByCompUnitInfo(comp_unit_info);
|
||
|
return nullptr;
|
||
|
}
|
||
|
|
||
|
ObjectFile *SymbolFileDWARFDebugMap::GetObjectFileByCompUnitInfo(
|
||
|
CompileUnitInfo *comp_unit_info) {
|
||
|
Module *oso_module = GetModuleByCompUnitInfo(comp_unit_info);
|
||
|
if (oso_module)
|
||
|
return oso_module->GetObjectFile();
|
||
|
return nullptr;
|
||
|
}
|
||
|
|
||
|
uint32_t SymbolFileDWARFDebugMap::GetCompUnitInfoIndex(
|
||
|
const CompileUnitInfo *comp_unit_info) {
|
||
|
if (!m_compile_unit_infos.empty()) {
|
||
|
const CompileUnitInfo *first_comp_unit_info = &m_compile_unit_infos.front();
|
||
|
const CompileUnitInfo *last_comp_unit_info = &m_compile_unit_infos.back();
|
||
|
if (first_comp_unit_info <= comp_unit_info &&
|
||
|
comp_unit_info <= last_comp_unit_info)
|
||
|
return comp_unit_info - first_comp_unit_info;
|
||
|
}
|
||
|
return UINT32_MAX;
|
||
|
}
|
||
|
|
||
|
SymbolFileDWARF *
|
||
|
SymbolFileDWARFDebugMap::GetSymbolFileByOSOIndex(uint32_t oso_idx) {
|
||
|
unsigned size = m_compile_unit_infos.size();
|
||
|
if (oso_idx < size)
|
||
|
return GetSymbolFileByCompUnitInfo(&m_compile_unit_infos[oso_idx]);
|
||
|
return nullptr;
|
||
|
}
|
||
|
|
||
|
SymbolFileDWARF *
|
||
|
SymbolFileDWARFDebugMap::GetSymbolFileAsSymbolFileDWARF(SymbolFile *sym_file) {
|
||
|
if (sym_file &&
|
||
|
sym_file->GetPluginName() == SymbolFileDWARF::GetPluginNameStatic())
|
||
|
return static_cast<SymbolFileDWARF *>(sym_file);
|
||
|
return nullptr;
|
||
|
}
|
||
|
|
||
|
SymbolFileDWARF *SymbolFileDWARFDebugMap::GetSymbolFileByCompUnitInfo(
|
||
|
CompileUnitInfo *comp_unit_info) {
|
||
|
if (Module *oso_module = GetModuleByCompUnitInfo(comp_unit_info))
|
||
|
return GetSymbolFileAsSymbolFileDWARF(oso_module->GetSymbolFile());
|
||
|
return nullptr;
|
||
|
}
|
||
|
|
||
|
uint32_t SymbolFileDWARFDebugMap::CalculateAbilities() {
|
||
|
// In order to get the abilities of this plug-in, we look at the list of
|
||
|
// N_OSO entries (object files) from the symbol table and make sure that
|
||
|
// these files exist and also contain valid DWARF. If we get any of that then
|
||
|
// we return the abilities of the first N_OSO's DWARF.
|
||
|
|
||
|
const uint32_t oso_index_count = GetNumCompileUnits();
|
||
|
if (oso_index_count > 0) {
|
||
|
InitOSO();
|
||
|
if (!m_compile_unit_infos.empty()) {
|
||
|
return SymbolFile::CompileUnits | SymbolFile::Functions |
|
||
|
SymbolFile::Blocks | SymbolFile::GlobalVariables |
|
||
|
SymbolFile::LocalVariables | SymbolFile::VariableTypes |
|
||
|
SymbolFile::LineTables;
|
||
|
}
|
||
|
}
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
uint32_t SymbolFileDWARFDebugMap::CalculateNumCompileUnits() {
|
||
|
InitOSO();
|
||
|
return m_compile_unit_infos.size();
|
||
|
}
|
||
|
|
||
|
CompUnitSP SymbolFileDWARFDebugMap::ParseCompileUnitAtIndex(uint32_t cu_idx) {
|
||
|
CompUnitSP comp_unit_sp;
|
||
|
const uint32_t cu_count = GetNumCompileUnits();
|
||
|
|
||
|
if (cu_idx < cu_count) {
|
||
|
Module *oso_module = GetModuleByCompUnitInfo(&m_compile_unit_infos[cu_idx]);
|
||
|
if (oso_module) {
|
||
|
FileSpec so_file_spec;
|
||
|
if (GetFileSpecForSO(cu_idx, so_file_spec)) {
|
||
|
// User zero as the ID to match the compile unit at offset zero in each
|
||
|
// .o file since each .o file can only have one compile unit for now.
|
||
|
lldb::user_id_t cu_id = 0;
|
||
|
m_compile_unit_infos[cu_idx].compile_unit_sp =
|
||
|
std::make_shared<CompileUnit>(
|
||
|
m_objfile_sp->GetModule(), nullptr, so_file_spec, cu_id,
|
||
|
eLanguageTypeUnknown, eLazyBoolCalculate);
|
||
|
|
||
|
if (m_compile_unit_infos[cu_idx].compile_unit_sp) {
|
||
|
SetCompileUnitAtIndex(cu_idx,
|
||
|
m_compile_unit_infos[cu_idx].compile_unit_sp);
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
comp_unit_sp = m_compile_unit_infos[cu_idx].compile_unit_sp;
|
||
|
}
|
||
|
|
||
|
return comp_unit_sp;
|
||
|
}
|
||
|
|
||
|
SymbolFileDWARFDebugMap::CompileUnitInfo *
|
||
|
SymbolFileDWARFDebugMap::GetCompUnitInfo(const SymbolContext &sc) {
|
||
|
return GetCompUnitInfo(*sc.comp_unit);
|
||
|
}
|
||
|
|
||
|
SymbolFileDWARFDebugMap::CompileUnitInfo *
|
||
|
SymbolFileDWARFDebugMap::GetCompUnitInfo(const CompileUnit &comp_unit) {
|
||
|
const uint32_t cu_count = GetNumCompileUnits();
|
||
|
for (uint32_t i = 0; i < cu_count; ++i) {
|
||
|
if (&comp_unit == m_compile_unit_infos[i].compile_unit_sp.get())
|
||
|
return &m_compile_unit_infos[i];
|
||
|
}
|
||
|
return nullptr;
|
||
|
}
|
||
|
|
||
|
size_t SymbolFileDWARFDebugMap::GetCompUnitInfosForModule(
|
||
|
const lldb_private::Module *module,
|
||
|
std::vector<CompileUnitInfo *> &cu_infos) {
|
||
|
const uint32_t cu_count = GetNumCompileUnits();
|
||
|
for (uint32_t i = 0; i < cu_count; ++i) {
|
||
|
if (module == GetModuleByCompUnitInfo(&m_compile_unit_infos[i]))
|
||
|
cu_infos.push_back(&m_compile_unit_infos[i]);
|
||
|
}
|
||
|
return cu_infos.size();
|
||
|
}
|
||
|
|
||
|
lldb::LanguageType
|
||
|
SymbolFileDWARFDebugMap::ParseLanguage(CompileUnit &comp_unit) {
|
||
|
std::lock_guard<std::recursive_mutex> guard(GetModuleMutex());
|
||
|
SymbolFileDWARF *oso_dwarf = GetSymbolFile(comp_unit);
|
||
|
if (oso_dwarf)
|
||
|
return oso_dwarf->ParseLanguage(comp_unit);
|
||
|
return eLanguageTypeUnknown;
|
||
|
}
|
||
|
|
||
|
XcodeSDK SymbolFileDWARFDebugMap::ParseXcodeSDK(CompileUnit &comp_unit) {
|
||
|
std::lock_guard<std::recursive_mutex> guard(GetModuleMutex());
|
||
|
SymbolFileDWARF *oso_dwarf = GetSymbolFile(comp_unit);
|
||
|
if (oso_dwarf)
|
||
|
return oso_dwarf->ParseXcodeSDK(comp_unit);
|
||
|
return {};
|
||
|
}
|
||
|
|
||
|
size_t SymbolFileDWARFDebugMap::ParseFunctions(CompileUnit &comp_unit) {
|
||
|
std::lock_guard<std::recursive_mutex> guard(GetModuleMutex());
|
||
|
SymbolFileDWARF *oso_dwarf = GetSymbolFile(comp_unit);
|
||
|
if (oso_dwarf)
|
||
|
return oso_dwarf->ParseFunctions(comp_unit);
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
bool SymbolFileDWARFDebugMap::ParseLineTable(CompileUnit &comp_unit) {
|
||
|
std::lock_guard<std::recursive_mutex> guard(GetModuleMutex());
|
||
|
SymbolFileDWARF *oso_dwarf = GetSymbolFile(comp_unit);
|
||
|
if (oso_dwarf)
|
||
|
return oso_dwarf->ParseLineTable(comp_unit);
|
||
|
return false;
|
||
|
}
|
||
|
|
||
|
bool SymbolFileDWARFDebugMap::ParseDebugMacros(CompileUnit &comp_unit) {
|
||
|
std::lock_guard<std::recursive_mutex> guard(GetModuleMutex());
|
||
|
SymbolFileDWARF *oso_dwarf = GetSymbolFile(comp_unit);
|
||
|
if (oso_dwarf)
|
||
|
return oso_dwarf->ParseDebugMacros(comp_unit);
|
||
|
return false;
|
||
|
}
|
||
|
|
||
|
bool SymbolFileDWARFDebugMap::ForEachExternalModule(
|
||
|
CompileUnit &comp_unit,
|
||
|
llvm::DenseSet<lldb_private::SymbolFile *> &visited_symbol_files,
|
||
|
llvm::function_ref<bool(Module &)> f) {
|
||
|
std::lock_guard<std::recursive_mutex> guard(GetModuleMutex());
|
||
|
SymbolFileDWARF *oso_dwarf = GetSymbolFile(comp_unit);
|
||
|
if (oso_dwarf)
|
||
|
return oso_dwarf->ForEachExternalModule(comp_unit, visited_symbol_files, f);
|
||
|
return false;
|
||
|
}
|
||
|
|
||
|
bool SymbolFileDWARFDebugMap::ParseSupportFiles(CompileUnit &comp_unit,
|
||
|
FileSpecList &support_files) {
|
||
|
std::lock_guard<std::recursive_mutex> guard(GetModuleMutex());
|
||
|
SymbolFileDWARF *oso_dwarf = GetSymbolFile(comp_unit);
|
||
|
if (oso_dwarf)
|
||
|
return oso_dwarf->ParseSupportFiles(comp_unit, support_files);
|
||
|
return false;
|
||
|
}
|
||
|
|
||
|
bool SymbolFileDWARFDebugMap::ParseIsOptimized(CompileUnit &comp_unit) {
|
||
|
std::lock_guard<std::recursive_mutex> guard(GetModuleMutex());
|
||
|
SymbolFileDWARF *oso_dwarf = GetSymbolFile(comp_unit);
|
||
|
if (oso_dwarf)
|
||
|
return oso_dwarf->ParseIsOptimized(comp_unit);
|
||
|
return false;
|
||
|
}
|
||
|
|
||
|
bool SymbolFileDWARFDebugMap::ParseImportedModules(
|
||
|
const SymbolContext &sc, std::vector<SourceModule> &imported_modules) {
|
||
|
std::lock_guard<std::recursive_mutex> guard(GetModuleMutex());
|
||
|
SymbolFileDWARF *oso_dwarf = GetSymbolFile(sc);
|
||
|
if (oso_dwarf)
|
||
|
return oso_dwarf->ParseImportedModules(sc, imported_modules);
|
||
|
return false;
|
||
|
}
|
||
|
|
||
|
size_t SymbolFileDWARFDebugMap::ParseBlocksRecursive(Function &func) {
|
||
|
std::lock_guard<std::recursive_mutex> guard(GetModuleMutex());
|
||
|
CompileUnit *comp_unit = func.GetCompileUnit();
|
||
|
if (!comp_unit)
|
||
|
return 0;
|
||
|
|
||
|
SymbolFileDWARF *oso_dwarf = GetSymbolFile(*comp_unit);
|
||
|
if (oso_dwarf)
|
||
|
return oso_dwarf->ParseBlocksRecursive(func);
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
size_t SymbolFileDWARFDebugMap::ParseTypes(CompileUnit &comp_unit) {
|
||
|
std::lock_guard<std::recursive_mutex> guard(GetModuleMutex());
|
||
|
SymbolFileDWARF *oso_dwarf = GetSymbolFile(comp_unit);
|
||
|
if (oso_dwarf)
|
||
|
return oso_dwarf->ParseTypes(comp_unit);
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
size_t
|
||
|
SymbolFileDWARFDebugMap::ParseVariablesForContext(const SymbolContext &sc) {
|
||
|
std::lock_guard<std::recursive_mutex> guard(GetModuleMutex());
|
||
|
SymbolFileDWARF *oso_dwarf = GetSymbolFile(sc);
|
||
|
if (oso_dwarf)
|
||
|
return oso_dwarf->ParseVariablesForContext(sc);
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
Type *SymbolFileDWARFDebugMap::ResolveTypeUID(lldb::user_id_t type_uid) {
|
||
|
std::lock_guard<std::recursive_mutex> guard(GetModuleMutex());
|
||
|
const uint64_t oso_idx = GetOSOIndexFromUserID(type_uid);
|
||
|
SymbolFileDWARF *oso_dwarf = GetSymbolFileByOSOIndex(oso_idx);
|
||
|
if (oso_dwarf)
|
||
|
return oso_dwarf->ResolveTypeUID(type_uid);
|
||
|
return nullptr;
|
||
|
}
|
||
|
|
||
|
llvm::Optional<SymbolFile::ArrayInfo>
|
||
|
SymbolFileDWARFDebugMap::GetDynamicArrayInfoForUID(
|
||
|
lldb::user_id_t type_uid, const lldb_private::ExecutionContext *exe_ctx) {
|
||
|
const uint64_t oso_idx = GetOSOIndexFromUserID(type_uid);
|
||
|
SymbolFileDWARF *oso_dwarf = GetSymbolFileByOSOIndex(oso_idx);
|
||
|
if (oso_dwarf)
|
||
|
return oso_dwarf->GetDynamicArrayInfoForUID(type_uid, exe_ctx);
|
||
|
return llvm::None;
|
||
|
}
|
||
|
|
||
|
bool SymbolFileDWARFDebugMap::CompleteType(CompilerType &compiler_type) {
|
||
|
bool success = false;
|
||
|
if (compiler_type) {
|
||
|
ForEachSymbolFile([&](SymbolFileDWARF *oso_dwarf) -> bool {
|
||
|
if (oso_dwarf->HasForwardDeclForClangType(compiler_type)) {
|
||
|
oso_dwarf->CompleteType(compiler_type);
|
||
|
success = true;
|
||
|
return true;
|
||
|
}
|
||
|
return false;
|
||
|
});
|
||
|
}
|
||
|
return success;
|
||
|
}
|
||
|
|
||
|
uint32_t
|
||
|
SymbolFileDWARFDebugMap::ResolveSymbolContext(const Address &exe_so_addr,
|
||
|
SymbolContextItem resolve_scope,
|
||
|
SymbolContext &sc) {
|
||
|
std::lock_guard<std::recursive_mutex> guard(GetModuleMutex());
|
||
|
uint32_t resolved_flags = 0;
|
||
|
Symtab *symtab = m_objfile_sp->GetSymtab();
|
||
|
if (symtab) {
|
||
|
const addr_t exe_file_addr = exe_so_addr.GetFileAddress();
|
||
|
|
||
|
const DebugMap::Entry *debug_map_entry =
|
||
|
m_debug_map.FindEntryThatContains(exe_file_addr);
|
||
|
if (debug_map_entry) {
|
||
|
|
||
|
sc.symbol =
|
||
|
symtab->SymbolAtIndex(debug_map_entry->data.GetExeSymbolIndex());
|
||
|
|
||
|
if (sc.symbol != nullptr) {
|
||
|
resolved_flags |= eSymbolContextSymbol;
|
||
|
|
||
|
uint32_t oso_idx = 0;
|
||
|
CompileUnitInfo *comp_unit_info =
|
||
|
GetCompileUnitInfoForSymbolWithID(sc.symbol->GetID(), &oso_idx);
|
||
|
if (comp_unit_info) {
|
||
|
comp_unit_info->GetFileRangeMap(this);
|
||
|
Module *oso_module = GetModuleByCompUnitInfo(comp_unit_info);
|
||
|
if (oso_module) {
|
||
|
lldb::addr_t oso_file_addr =
|
||
|
exe_file_addr - debug_map_entry->GetRangeBase() +
|
||
|
debug_map_entry->data.GetOSOFileAddress();
|
||
|
Address oso_so_addr;
|
||
|
if (oso_module->ResolveFileAddress(oso_file_addr, oso_so_addr)) {
|
||
|
resolved_flags |=
|
||
|
oso_module->GetSymbolFile()->ResolveSymbolContext(
|
||
|
oso_so_addr, resolve_scope, sc);
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
return resolved_flags;
|
||
|
}
|
||
|
|
||
|
uint32_t SymbolFileDWARFDebugMap::ResolveSymbolContext(
|
||
|
const FileSpec &file_spec, uint32_t line, bool check_inlines,
|
||
|
SymbolContextItem resolve_scope, SymbolContextList &sc_list) {
|
||
|
std::lock_guard<std::recursive_mutex> guard(GetModuleMutex());
|
||
|
const uint32_t initial = sc_list.GetSize();
|
||
|
const uint32_t cu_count = GetNumCompileUnits();
|
||
|
|
||
|
for (uint32_t i = 0; i < cu_count; ++i) {
|
||
|
// If we are checking for inlines, then we need to look through all compile
|
||
|
// units no matter if "file_spec" matches.
|
||
|
bool resolve = check_inlines;
|
||
|
|
||
|
if (!resolve) {
|
||
|
FileSpec so_file_spec;
|
||
|
if (GetFileSpecForSO(i, so_file_spec))
|
||
|
resolve = FileSpec::Match(file_spec, so_file_spec);
|
||
|
}
|
||
|
if (resolve) {
|
||
|
SymbolFileDWARF *oso_dwarf = GetSymbolFileByOSOIndex(i);
|
||
|
if (oso_dwarf)
|
||
|
oso_dwarf->ResolveSymbolContext(file_spec, line, check_inlines,
|
||
|
resolve_scope, sc_list);
|
||
|
}
|
||
|
}
|
||
|
return sc_list.GetSize() - initial;
|
||
|
}
|
||
|
|
||
|
void SymbolFileDWARFDebugMap::PrivateFindGlobalVariables(
|
||
|
ConstString name, const CompilerDeclContext &parent_decl_ctx,
|
||
|
const std::vector<uint32_t>
|
||
|
&indexes, // Indexes into the symbol table that match "name"
|
||
|
uint32_t max_matches, VariableList &variables) {
|
||
|
const size_t match_count = indexes.size();
|
||
|
for (size_t i = 0; i < match_count; ++i) {
|
||
|
uint32_t oso_idx;
|
||
|
CompileUnitInfo *comp_unit_info =
|
||
|
GetCompileUnitInfoForSymbolWithIndex(indexes[i], &oso_idx);
|
||
|
if (comp_unit_info) {
|
||
|
SymbolFileDWARF *oso_dwarf = GetSymbolFileByOSOIndex(oso_idx);
|
||
|
if (oso_dwarf) {
|
||
|
oso_dwarf->FindGlobalVariables(name, parent_decl_ctx, max_matches,
|
||
|
variables);
|
||
|
if (variables.GetSize() > max_matches)
|
||
|
break;
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
|
||
|
void SymbolFileDWARFDebugMap::FindGlobalVariables(
|
||
|
ConstString name, const CompilerDeclContext &parent_decl_ctx,
|
||
|
uint32_t max_matches, VariableList &variables) {
|
||
|
std::lock_guard<std::recursive_mutex> guard(GetModuleMutex());
|
||
|
uint32_t total_matches = 0;
|
||
|
|
||
|
ForEachSymbolFile([&](SymbolFileDWARF *oso_dwarf) -> bool {
|
||
|
const uint32_t old_size = variables.GetSize();
|
||
|
oso_dwarf->FindGlobalVariables(name, parent_decl_ctx, max_matches,
|
||
|
variables);
|
||
|
const uint32_t oso_matches = variables.GetSize() - old_size;
|
||
|
if (oso_matches > 0) {
|
||
|
total_matches += oso_matches;
|
||
|
|
||
|
// Are we getting all matches?
|
||
|
if (max_matches == UINT32_MAX)
|
||
|
return false; // Yep, continue getting everything
|
||
|
|
||
|
// If we have found enough matches, lets get out
|
||
|
if (max_matches >= total_matches)
|
||
|
return true;
|
||
|
|
||
|
// Update the max matches for any subsequent calls to find globals in any
|
||
|
// other object files with DWARF
|
||
|
max_matches -= oso_matches;
|
||
|
}
|
||
|
|
||
|
return false;
|
||
|
});
|
||
|
}
|
||
|
|
||
|
void SymbolFileDWARFDebugMap::FindGlobalVariables(
|
||
|
const RegularExpression ®ex, uint32_t max_matches,
|
||
|
VariableList &variables) {
|
||
|
std::lock_guard<std::recursive_mutex> guard(GetModuleMutex());
|
||
|
uint32_t total_matches = 0;
|
||
|
ForEachSymbolFile([&](SymbolFileDWARF *oso_dwarf) -> bool {
|
||
|
const uint32_t old_size = variables.GetSize();
|
||
|
oso_dwarf->FindGlobalVariables(regex, max_matches, variables);
|
||
|
|
||
|
const uint32_t oso_matches = variables.GetSize() - old_size;
|
||
|
if (oso_matches > 0) {
|
||
|
total_matches += oso_matches;
|
||
|
|
||
|
// Are we getting all matches?
|
||
|
if (max_matches == UINT32_MAX)
|
||
|
return false; // Yep, continue getting everything
|
||
|
|
||
|
// If we have found enough matches, lets get out
|
||
|
if (max_matches >= total_matches)
|
||
|
return true;
|
||
|
|
||
|
// Update the max matches for any subsequent calls to find globals in any
|
||
|
// other object files with DWARF
|
||
|
max_matches -= oso_matches;
|
||
|
}
|
||
|
|
||
|
return false;
|
||
|
});
|
||
|
}
|
||
|
|
||
|
int SymbolFileDWARFDebugMap::SymbolContainsSymbolWithIndex(
|
||
|
uint32_t *symbol_idx_ptr, const CompileUnitInfo *comp_unit_info) {
|
||
|
const uint32_t symbol_idx = *symbol_idx_ptr;
|
||
|
|
||
|
if (symbol_idx < comp_unit_info->first_symbol_index)
|
||
|
return -1;
|
||
|
|
||
|
if (symbol_idx <= comp_unit_info->last_symbol_index)
|
||
|
return 0;
|
||
|
|
||
|
return 1;
|
||
|
}
|
||
|
|
||
|
int SymbolFileDWARFDebugMap::SymbolContainsSymbolWithID(
|
||
|
user_id_t *symbol_idx_ptr, const CompileUnitInfo *comp_unit_info) {
|
||
|
const user_id_t symbol_id = *symbol_idx_ptr;
|
||
|
|
||
|
if (symbol_id < comp_unit_info->first_symbol_id)
|
||
|
return -1;
|
||
|
|
||
|
if (symbol_id <= comp_unit_info->last_symbol_id)
|
||
|
return 0;
|
||
|
|
||
|
return 1;
|
||
|
}
|
||
|
|
||
|
SymbolFileDWARFDebugMap::CompileUnitInfo *
|
||
|
SymbolFileDWARFDebugMap::GetCompileUnitInfoForSymbolWithIndex(
|
||
|
uint32_t symbol_idx, uint32_t *oso_idx_ptr) {
|
||
|
const uint32_t oso_index_count = m_compile_unit_infos.size();
|
||
|
CompileUnitInfo *comp_unit_info = nullptr;
|
||
|
if (oso_index_count) {
|
||
|
comp_unit_info = (CompileUnitInfo *)bsearch(
|
||
|
&symbol_idx, &m_compile_unit_infos[0], m_compile_unit_infos.size(),
|
||
|
sizeof(CompileUnitInfo),
|
||
|
(ComparisonFunction)SymbolContainsSymbolWithIndex);
|
||
|
}
|
||
|
|
||
|
if (oso_idx_ptr) {
|
||
|
if (comp_unit_info != nullptr)
|
||
|
*oso_idx_ptr = comp_unit_info - &m_compile_unit_infos[0];
|
||
|
else
|
||
|
*oso_idx_ptr = UINT32_MAX;
|
||
|
}
|
||
|
return comp_unit_info;
|
||
|
}
|
||
|
|
||
|
SymbolFileDWARFDebugMap::CompileUnitInfo *
|
||
|
SymbolFileDWARFDebugMap::GetCompileUnitInfoForSymbolWithID(
|
||
|
user_id_t symbol_id, uint32_t *oso_idx_ptr) {
|
||
|
const uint32_t oso_index_count = m_compile_unit_infos.size();
|
||
|
CompileUnitInfo *comp_unit_info = nullptr;
|
||
|
if (oso_index_count) {
|
||
|
comp_unit_info = (CompileUnitInfo *)::bsearch(
|
||
|
&symbol_id, &m_compile_unit_infos[0], m_compile_unit_infos.size(),
|
||
|
sizeof(CompileUnitInfo),
|
||
|
(ComparisonFunction)SymbolContainsSymbolWithID);
|
||
|
}
|
||
|
|
||
|
if (oso_idx_ptr) {
|
||
|
if (comp_unit_info != nullptr)
|
||
|
*oso_idx_ptr = comp_unit_info - &m_compile_unit_infos[0];
|
||
|
else
|
||
|
*oso_idx_ptr = UINT32_MAX;
|
||
|
}
|
||
|
return comp_unit_info;
|
||
|
}
|
||
|
|
||
|
static void RemoveFunctionsWithModuleNotEqualTo(const ModuleSP &module_sp,
|
||
|
SymbolContextList &sc_list,
|
||
|
uint32_t start_idx) {
|
||
|
// We found functions in .o files. Not all functions in the .o files will
|
||
|
// have made it into the final output file. The ones that did make it into
|
||
|
// the final output file will have a section whose module matches the module
|
||
|
// from the ObjectFile for this SymbolFile. When the modules don't match,
|
||
|
// then we have something that was in a .o file, but doesn't map to anything
|
||
|
// in the final executable.
|
||
|
uint32_t i = start_idx;
|
||
|
while (i < sc_list.GetSize()) {
|
||
|
SymbolContext sc;
|
||
|
sc_list.GetContextAtIndex(i, sc);
|
||
|
if (sc.function) {
|
||
|
const SectionSP section_sp(
|
||
|
sc.function->GetAddressRange().GetBaseAddress().GetSection());
|
||
|
if (section_sp->GetModule() != module_sp) {
|
||
|
sc_list.RemoveContextAtIndex(i);
|
||
|
continue;
|
||
|
}
|
||
|
}
|
||
|
++i;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
void SymbolFileDWARFDebugMap::FindFunctions(
|
||
|
ConstString name, const CompilerDeclContext &parent_decl_ctx,
|
||
|
FunctionNameType name_type_mask, bool include_inlines,
|
||
|
SymbolContextList &sc_list) {
|
||
|
std::lock_guard<std::recursive_mutex> guard(GetModuleMutex());
|
||
|
static Timer::Category func_cat(LLVM_PRETTY_FUNCTION);
|
||
|
Timer scoped_timer(func_cat,
|
||
|
"SymbolFileDWARFDebugMap::FindFunctions (name = %s)",
|
||
|
name.GetCString());
|
||
|
|
||
|
ForEachSymbolFile([&](SymbolFileDWARF *oso_dwarf) -> bool {
|
||
|
uint32_t sc_idx = sc_list.GetSize();
|
||
|
oso_dwarf->FindFunctions(name, parent_decl_ctx, name_type_mask,
|
||
|
include_inlines, sc_list);
|
||
|
if (!sc_list.IsEmpty()) {
|
||
|
RemoveFunctionsWithModuleNotEqualTo(m_objfile_sp->GetModule(), sc_list,
|
||
|
sc_idx);
|
||
|
}
|
||
|
return false;
|
||
|
});
|
||
|
}
|
||
|
|
||
|
void SymbolFileDWARFDebugMap::FindFunctions(const RegularExpression ®ex,
|
||
|
bool include_inlines,
|
||
|
SymbolContextList &sc_list) {
|
||
|
std::lock_guard<std::recursive_mutex> guard(GetModuleMutex());
|
||
|
static Timer::Category func_cat(LLVM_PRETTY_FUNCTION);
|
||
|
Timer scoped_timer(func_cat,
|
||
|
"SymbolFileDWARFDebugMap::FindFunctions (regex = '%s')",
|
||
|
regex.GetText().str().c_str());
|
||
|
|
||
|
ForEachSymbolFile([&](SymbolFileDWARF *oso_dwarf) -> bool {
|
||
|
uint32_t sc_idx = sc_list.GetSize();
|
||
|
|
||
|
oso_dwarf->FindFunctions(regex, include_inlines, sc_list);
|
||
|
if (!sc_list.IsEmpty()) {
|
||
|
RemoveFunctionsWithModuleNotEqualTo(m_objfile_sp->GetModule(), sc_list,
|
||
|
sc_idx);
|
||
|
}
|
||
|
return false;
|
||
|
});
|
||
|
}
|
||
|
|
||
|
void SymbolFileDWARFDebugMap::GetTypes(SymbolContextScope *sc_scope,
|
||
|
lldb::TypeClass type_mask,
|
||
|
TypeList &type_list) {
|
||
|
std::lock_guard<std::recursive_mutex> guard(GetModuleMutex());
|
||
|
static Timer::Category func_cat(LLVM_PRETTY_FUNCTION);
|
||
|
Timer scoped_timer(func_cat,
|
||
|
"SymbolFileDWARFDebugMap::GetTypes (type_mask = 0x%8.8x)",
|
||
|
type_mask);
|
||
|
|
||
|
SymbolFileDWARF *oso_dwarf = nullptr;
|
||
|
if (sc_scope) {
|
||
|
SymbolContext sc;
|
||
|
sc_scope->CalculateSymbolContext(&sc);
|
||
|
|
||
|
CompileUnitInfo *cu_info = GetCompUnitInfo(sc);
|
||
|
if (cu_info) {
|
||
|
oso_dwarf = GetSymbolFileByCompUnitInfo(cu_info);
|
||
|
if (oso_dwarf)
|
||
|
oso_dwarf->GetTypes(sc_scope, type_mask, type_list);
|
||
|
}
|
||
|
} else {
|
||
|
ForEachSymbolFile([&](SymbolFileDWARF *oso_dwarf) -> bool {
|
||
|
oso_dwarf->GetTypes(sc_scope, type_mask, type_list);
|
||
|
return false;
|
||
|
});
|
||
|
}
|
||
|
}
|
||
|
|
||
|
std::vector<std::unique_ptr<lldb_private::CallEdge>>
|
||
|
SymbolFileDWARFDebugMap::ParseCallEdgesInFunction(UserID func_id) {
|
||
|
uint32_t oso_idx = GetOSOIndexFromUserID(func_id.GetID());
|
||
|
SymbolFileDWARF *oso_dwarf = GetSymbolFileByOSOIndex(oso_idx);
|
||
|
if (oso_dwarf)
|
||
|
return oso_dwarf->ParseCallEdgesInFunction(func_id);
|
||
|
return {};
|
||
|
}
|
||
|
|
||
|
TypeSP SymbolFileDWARFDebugMap::FindDefinitionTypeForDWARFDeclContext(
|
||
|
const DWARFDeclContext &die_decl_ctx) {
|
||
|
TypeSP type_sp;
|
||
|
ForEachSymbolFile([&](SymbolFileDWARF *oso_dwarf) -> bool {
|
||
|
type_sp = oso_dwarf->FindDefinitionTypeForDWARFDeclContext(die_decl_ctx);
|
||
|
return ((bool)type_sp);
|
||
|
});
|
||
|
return type_sp;
|
||
|
}
|
||
|
|
||
|
bool SymbolFileDWARFDebugMap::Supports_DW_AT_APPLE_objc_complete_type(
|
||
|
SymbolFileDWARF *skip_dwarf_oso) {
|
||
|
if (m_supports_DW_AT_APPLE_objc_complete_type == eLazyBoolCalculate) {
|
||
|
m_supports_DW_AT_APPLE_objc_complete_type = eLazyBoolNo;
|
||
|
ForEachSymbolFile([&](SymbolFileDWARF *oso_dwarf) -> bool {
|
||
|
if (skip_dwarf_oso != oso_dwarf &&
|
||
|
oso_dwarf->Supports_DW_AT_APPLE_objc_complete_type(nullptr)) {
|
||
|
m_supports_DW_AT_APPLE_objc_complete_type = eLazyBoolYes;
|
||
|
return true;
|
||
|
}
|
||
|
return false;
|
||
|
});
|
||
|
}
|
||
|
return m_supports_DW_AT_APPLE_objc_complete_type == eLazyBoolYes;
|
||
|
}
|
||
|
|
||
|
TypeSP SymbolFileDWARFDebugMap::FindCompleteObjCDefinitionTypeForDIE(
|
||
|
const DWARFDIE &die, ConstString type_name,
|
||
|
bool must_be_implementation) {
|
||
|
// If we have a debug map, we will have an Objective-C symbol whose name is
|
||
|
// the type name and whose type is eSymbolTypeObjCClass. If we can find that
|
||
|
// symbol and find its containing parent, we can locate the .o file that will
|
||
|
// contain the implementation definition since it will be scoped inside the
|
||
|
// N_SO and we can then locate the SymbolFileDWARF that corresponds to that
|
||
|
// N_SO.
|
||
|
SymbolFileDWARF *oso_dwarf = nullptr;
|
||
|
TypeSP type_sp;
|
||
|
ObjectFile *module_objfile = m_objfile_sp->GetModule()->GetObjectFile();
|
||
|
if (module_objfile) {
|
||
|
Symtab *symtab = module_objfile->GetSymtab();
|
||
|
if (symtab) {
|
||
|
Symbol *objc_class_symbol = symtab->FindFirstSymbolWithNameAndType(
|
||
|
type_name, eSymbolTypeObjCClass, Symtab::eDebugAny,
|
||
|
Symtab::eVisibilityAny);
|
||
|
if (objc_class_symbol) {
|
||
|
// Get the N_SO symbol that contains the objective C class symbol as
|
||
|
// this should be the .o file that contains the real definition...
|
||
|
const Symbol *source_file_symbol = symtab->GetParent(objc_class_symbol);
|
||
|
|
||
|
if (source_file_symbol &&
|
||
|
source_file_symbol->GetType() == eSymbolTypeSourceFile) {
|
||
|
const uint32_t source_file_symbol_idx =
|
||
|
symtab->GetIndexForSymbol(source_file_symbol);
|
||
|
if (source_file_symbol_idx != UINT32_MAX) {
|
||
|
CompileUnitInfo *compile_unit_info =
|
||
|
GetCompileUnitInfoForSymbolWithIndex(source_file_symbol_idx,
|
||
|
nullptr);
|
||
|
if (compile_unit_info) {
|
||
|
oso_dwarf = GetSymbolFileByCompUnitInfo(compile_unit_info);
|
||
|
if (oso_dwarf) {
|
||
|
TypeSP type_sp(oso_dwarf->FindCompleteObjCDefinitionTypeForDIE(
|
||
|
die, type_name, must_be_implementation));
|
||
|
if (type_sp) {
|
||
|
return type_sp;
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
|
||
|
// Only search all .o files for the definition if we don't need the
|
||
|
// implementation because otherwise, with a valid debug map we should have
|
||
|
// the ObjC class symbol and the code above should have found it.
|
||
|
if (!must_be_implementation) {
|
||
|
TypeSP type_sp;
|
||
|
|
||
|
ForEachSymbolFile([&](SymbolFileDWARF *oso_dwarf) -> bool {
|
||
|
type_sp = oso_dwarf->FindCompleteObjCDefinitionTypeForDIE(
|
||
|
die, type_name, must_be_implementation);
|
||
|
return (bool)type_sp;
|
||
|
});
|
||
|
|
||
|
return type_sp;
|
||
|
}
|
||
|
return TypeSP();
|
||
|
}
|
||
|
|
||
|
void SymbolFileDWARFDebugMap::FindTypes(
|
||
|
ConstString name, const CompilerDeclContext &parent_decl_ctx,
|
||
|
uint32_t max_matches,
|
||
|
llvm::DenseSet<lldb_private::SymbolFile *> &searched_symbol_files,
|
||
|
TypeMap &types) {
|
||
|
std::lock_guard<std::recursive_mutex> guard(GetModuleMutex());
|
||
|
ForEachSymbolFile([&](SymbolFileDWARF *oso_dwarf) -> bool {
|
||
|
oso_dwarf->FindTypes(name, parent_decl_ctx, max_matches,
|
||
|
searched_symbol_files, types);
|
||
|
return types.GetSize() >= max_matches;
|
||
|
});
|
||
|
}
|
||
|
|
||
|
void SymbolFileDWARFDebugMap::FindTypes(
|
||
|
llvm::ArrayRef<CompilerContext> context, LanguageSet languages,
|
||
|
llvm::DenseSet<lldb_private::SymbolFile *> &searched_symbol_files,
|
||
|
TypeMap &types) {
|
||
|
ForEachSymbolFile([&](SymbolFileDWARF *oso_dwarf) -> bool {
|
||
|
oso_dwarf->FindTypes(context, languages, searched_symbol_files, types);
|
||
|
return false;
|
||
|
});
|
||
|
}
|
||
|
|
||
|
//
|
||
|
// uint32_t
|
||
|
// SymbolFileDWARFDebugMap::FindTypes (const SymbolContext& sc, const
|
||
|
// RegularExpression& regex, bool append, uint32_t max_matches, Type::Encoding
|
||
|
// encoding, lldb::user_id_t udt_uid, TypeList& types)
|
||
|
//{
|
||
|
// SymbolFileDWARF *oso_dwarf = GetSymbolFile (sc);
|
||
|
// if (oso_dwarf)
|
||
|
// return oso_dwarf->FindTypes (sc, regex, append, max_matches, encoding,
|
||
|
// udt_uid, types);
|
||
|
// return 0;
|
||
|
//}
|
||
|
|
||
|
CompilerDeclContext SymbolFileDWARFDebugMap::FindNamespace(
|
||
|
lldb_private::ConstString name,
|
||
|
const CompilerDeclContext &parent_decl_ctx) {
|
||
|
std::lock_guard<std::recursive_mutex> guard(GetModuleMutex());
|
||
|
CompilerDeclContext matching_namespace;
|
||
|
|
||
|
ForEachSymbolFile([&](SymbolFileDWARF *oso_dwarf) -> bool {
|
||
|
matching_namespace = oso_dwarf->FindNamespace(name, parent_decl_ctx);
|
||
|
|
||
|
return (bool)matching_namespace;
|
||
|
});
|
||
|
|
||
|
return matching_namespace;
|
||
|
}
|
||
|
|
||
|
void SymbolFileDWARFDebugMap::DumpClangAST(Stream &s) {
|
||
|
ForEachSymbolFile([&s](SymbolFileDWARF *oso_dwarf) -> bool {
|
||
|
oso_dwarf->DumpClangAST(s);
|
||
|
// The underlying assumption is that DumpClangAST(...) will obtain the
|
||
|
// AST from the underlying TypeSystem and therefore we only need to do
|
||
|
// this once and can stop after the first iteration hence we return true.
|
||
|
return true;
|
||
|
});
|
||
|
}
|
||
|
|
||
|
// PluginInterface protocol
|
||
|
lldb_private::ConstString SymbolFileDWARFDebugMap::GetPluginName() {
|
||
|
return GetPluginNameStatic();
|
||
|
}
|
||
|
|
||
|
uint32_t SymbolFileDWARFDebugMap::GetPluginVersion() { return 1; }
|
||
|
|
||
|
lldb::CompUnitSP
|
||
|
SymbolFileDWARFDebugMap::GetCompileUnit(SymbolFileDWARF *oso_dwarf) {
|
||
|
if (oso_dwarf) {
|
||
|
const uint32_t cu_count = GetNumCompileUnits();
|
||
|
for (uint32_t cu_idx = 0; cu_idx < cu_count; ++cu_idx) {
|
||
|
SymbolFileDWARF *oso_symfile =
|
||
|
GetSymbolFileByCompUnitInfo(&m_compile_unit_infos[cu_idx]);
|
||
|
if (oso_symfile == oso_dwarf) {
|
||
|
if (!m_compile_unit_infos[cu_idx].compile_unit_sp)
|
||
|
m_compile_unit_infos[cu_idx].compile_unit_sp =
|
||
|
ParseCompileUnitAtIndex(cu_idx);
|
||
|
|
||
|
return m_compile_unit_infos[cu_idx].compile_unit_sp;
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
llvm_unreachable("this shouldn't happen");
|
||
|
}
|
||
|
|
||
|
SymbolFileDWARFDebugMap::CompileUnitInfo *
|
||
|
SymbolFileDWARFDebugMap::GetCompileUnitInfo(SymbolFileDWARF *oso_dwarf) {
|
||
|
if (oso_dwarf) {
|
||
|
const uint32_t cu_count = GetNumCompileUnits();
|
||
|
for (uint32_t cu_idx = 0; cu_idx < cu_count; ++cu_idx) {
|
||
|
SymbolFileDWARF *oso_symfile =
|
||
|
GetSymbolFileByCompUnitInfo(&m_compile_unit_infos[cu_idx]);
|
||
|
if (oso_symfile == oso_dwarf) {
|
||
|
return &m_compile_unit_infos[cu_idx];
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
return nullptr;
|
||
|
}
|
||
|
|
||
|
void SymbolFileDWARFDebugMap::SetCompileUnit(SymbolFileDWARF *oso_dwarf,
|
||
|
const CompUnitSP &cu_sp) {
|
||
|
if (oso_dwarf) {
|
||
|
const uint32_t cu_count = GetNumCompileUnits();
|
||
|
for (uint32_t cu_idx = 0; cu_idx < cu_count; ++cu_idx) {
|
||
|
SymbolFileDWARF *oso_symfile =
|
||
|
GetSymbolFileByCompUnitInfo(&m_compile_unit_infos[cu_idx]);
|
||
|
if (oso_symfile == oso_dwarf) {
|
||
|
if (m_compile_unit_infos[cu_idx].compile_unit_sp) {
|
||
|
assert(m_compile_unit_infos[cu_idx].compile_unit_sp.get() ==
|
||
|
cu_sp.get());
|
||
|
} else {
|
||
|
m_compile_unit_infos[cu_idx].compile_unit_sp = cu_sp;
|
||
|
SetCompileUnitAtIndex(cu_idx, cu_sp);
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
|
||
|
CompilerDeclContext
|
||
|
SymbolFileDWARFDebugMap::GetDeclContextForUID(lldb::user_id_t type_uid) {
|
||
|
const uint64_t oso_idx = GetOSOIndexFromUserID(type_uid);
|
||
|
SymbolFileDWARF *oso_dwarf = GetSymbolFileByOSOIndex(oso_idx);
|
||
|
if (oso_dwarf)
|
||
|
return oso_dwarf->GetDeclContextForUID(type_uid);
|
||
|
return CompilerDeclContext();
|
||
|
}
|
||
|
|
||
|
CompilerDeclContext
|
||
|
SymbolFileDWARFDebugMap::GetDeclContextContainingUID(lldb::user_id_t type_uid) {
|
||
|
const uint64_t oso_idx = GetOSOIndexFromUserID(type_uid);
|
||
|
SymbolFileDWARF *oso_dwarf = GetSymbolFileByOSOIndex(oso_idx);
|
||
|
if (oso_dwarf)
|
||
|
return oso_dwarf->GetDeclContextContainingUID(type_uid);
|
||
|
return CompilerDeclContext();
|
||
|
}
|
||
|
|
||
|
void SymbolFileDWARFDebugMap::ParseDeclsForContext(
|
||
|
lldb_private::CompilerDeclContext decl_ctx) {
|
||
|
ForEachSymbolFile([&](SymbolFileDWARF *oso_dwarf) -> bool {
|
||
|
oso_dwarf->ParseDeclsForContext(decl_ctx);
|
||
|
return true; // Keep iterating
|
||
|
});
|
||
|
}
|
||
|
|
||
|
bool SymbolFileDWARFDebugMap::AddOSOFileRange(CompileUnitInfo *cu_info,
|
||
|
lldb::addr_t exe_file_addr,
|
||
|
lldb::addr_t exe_byte_size,
|
||
|
lldb::addr_t oso_file_addr,
|
||
|
lldb::addr_t oso_byte_size) {
|
||
|
const uint32_t debug_map_idx =
|
||
|
m_debug_map.FindEntryIndexThatContains(exe_file_addr);
|
||
|
if (debug_map_idx != UINT32_MAX) {
|
||
|
DebugMap::Entry *debug_map_entry =
|
||
|
m_debug_map.FindEntryThatContains(exe_file_addr);
|
||
|
debug_map_entry->data.SetOSOFileAddress(oso_file_addr);
|
||
|
addr_t range_size = std::min<addr_t>(exe_byte_size, oso_byte_size);
|
||
|
if (range_size == 0) {
|
||
|
range_size = std::max<addr_t>(exe_byte_size, oso_byte_size);
|
||
|
if (range_size == 0)
|
||
|
range_size = 1;
|
||
|
}
|
||
|
cu_info->file_range_map.Append(
|
||
|
FileRangeMap::Entry(oso_file_addr, range_size, exe_file_addr));
|
||
|
return true;
|
||
|
}
|
||
|
return false;
|
||
|
}
|
||
|
|
||
|
void SymbolFileDWARFDebugMap::FinalizeOSOFileRanges(CompileUnitInfo *cu_info) {
|
||
|
cu_info->file_range_map.Sort();
|
||
|
#if defined(DEBUG_OSO_DMAP)
|
||
|
const FileRangeMap &oso_file_range_map = cu_info->GetFileRangeMap(this);
|
||
|
const size_t n = oso_file_range_map.GetSize();
|
||
|
printf("SymbolFileDWARFDebugMap::FinalizeOSOFileRanges (cu_info = %p) %s\n",
|
||
|
cu_info, cu_info->oso_sp->module_sp->GetFileSpec().GetPath().c_str());
|
||
|
for (size_t i = 0; i < n; ++i) {
|
||
|
const FileRangeMap::Entry &entry = oso_file_range_map.GetEntryRef(i);
|
||
|
printf("oso [0x%16.16" PRIx64 " - 0x%16.16" PRIx64
|
||
|
") ==> exe [0x%16.16" PRIx64 " - 0x%16.16" PRIx64 ")\n",
|
||
|
entry.GetRangeBase(), entry.GetRangeEnd(), entry.data,
|
||
|
entry.data + entry.GetByteSize());
|
||
|
}
|
||
|
#endif
|
||
|
}
|
||
|
|
||
|
lldb::addr_t
|
||
|
SymbolFileDWARFDebugMap::LinkOSOFileAddress(SymbolFileDWARF *oso_symfile,
|
||
|
lldb::addr_t oso_file_addr) {
|
||
|
CompileUnitInfo *cu_info = GetCompileUnitInfo(oso_symfile);
|
||
|
if (cu_info) {
|
||
|
const FileRangeMap::Entry *oso_range_entry =
|
||
|
cu_info->GetFileRangeMap(this).FindEntryThatContains(oso_file_addr);
|
||
|
if (oso_range_entry) {
|
||
|
const DebugMap::Entry *debug_map_entry =
|
||
|
m_debug_map.FindEntryThatContains(oso_range_entry->data);
|
||
|
if (debug_map_entry) {
|
||
|
const lldb::addr_t offset =
|
||
|
oso_file_addr - oso_range_entry->GetRangeBase();
|
||
|
const lldb::addr_t exe_file_addr =
|
||
|
debug_map_entry->GetRangeBase() + offset;
|
||
|
return exe_file_addr;
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
return LLDB_INVALID_ADDRESS;
|
||
|
}
|
||
|
|
||
|
bool SymbolFileDWARFDebugMap::LinkOSOAddress(Address &addr) {
|
||
|
// Make sure this address hasn't been fixed already
|
||
|
Module *exe_module = GetObjectFile()->GetModule().get();
|
||
|
Module *addr_module = addr.GetModule().get();
|
||
|
if (addr_module == exe_module)
|
||
|
return true; // Address is already in terms of the main executable module
|
||
|
|
||
|
CompileUnitInfo *cu_info = GetCompileUnitInfo(
|
||
|
GetSymbolFileAsSymbolFileDWARF(addr_module->GetSymbolFile()));
|
||
|
if (cu_info) {
|
||
|
const lldb::addr_t oso_file_addr = addr.GetFileAddress();
|
||
|
const FileRangeMap::Entry *oso_range_entry =
|
||
|
cu_info->GetFileRangeMap(this).FindEntryThatContains(oso_file_addr);
|
||
|
if (oso_range_entry) {
|
||
|
const DebugMap::Entry *debug_map_entry =
|
||
|
m_debug_map.FindEntryThatContains(oso_range_entry->data);
|
||
|
if (debug_map_entry) {
|
||
|
const lldb::addr_t offset =
|
||
|
oso_file_addr - oso_range_entry->GetRangeBase();
|
||
|
const lldb::addr_t exe_file_addr =
|
||
|
debug_map_entry->GetRangeBase() + offset;
|
||
|
return exe_module->ResolveFileAddress(exe_file_addr, addr);
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
return true;
|
||
|
}
|
||
|
|
||
|
LineTable *SymbolFileDWARFDebugMap::LinkOSOLineTable(SymbolFileDWARF *oso_dwarf,
|
||
|
LineTable *line_table) {
|
||
|
CompileUnitInfo *cu_info = GetCompileUnitInfo(oso_dwarf);
|
||
|
if (cu_info)
|
||
|
return line_table->LinkLineTable(cu_info->GetFileRangeMap(this));
|
||
|
return nullptr;
|
||
|
}
|
||
|
|
||
|
size_t
|
||
|
SymbolFileDWARFDebugMap::AddOSOARanges(SymbolFileDWARF *dwarf2Data,
|
||
|
DWARFDebugAranges *debug_aranges) {
|
||
|
size_t num_line_entries_added = 0;
|
||
|
if (debug_aranges && dwarf2Data) {
|
||
|
CompileUnitInfo *compile_unit_info = GetCompileUnitInfo(dwarf2Data);
|
||
|
if (compile_unit_info) {
|
||
|
const FileRangeMap &file_range_map =
|
||
|
compile_unit_info->GetFileRangeMap(this);
|
||
|
for (size_t idx = 0; idx < file_range_map.GetSize(); idx++) {
|
||
|
const FileRangeMap::Entry *entry = file_range_map.GetEntryAtIndex(idx);
|
||
|
if (entry) {
|
||
|
debug_aranges->AppendRange(dwarf2Data->GetID(), entry->GetRangeBase(),
|
||
|
entry->GetRangeEnd());
|
||
|
num_line_entries_added++;
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
return num_line_entries_added;
|
||
|
}
|