106 lines · cpp
1//===-- SymbolFileJSON.cpp ----------------------------------------------===//2//3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.4// See https://llvm.org/LICENSE.txt for license information.5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception6//7//===----------------------------------------------------------------------===//8 9#include "SymbolFileJSON.h"10 11#include "Plugins/ObjectFile/JSON/ObjectFileJSON.h"12#include "lldb/Core/Module.h"13#include "lldb/Core/PluginManager.h"14#include "lldb/Symbol/CompileUnit.h"15#include "lldb/Symbol/Function.h"16#include "lldb/Symbol/ObjectFile.h"17#include "lldb/Symbol/Symbol.h"18#include "lldb/Symbol/SymbolContext.h"19#include "lldb/Symbol/Symtab.h"20#include "lldb/Symbol/TypeList.h"21#include "lldb/Utility/LLDBLog.h"22#include "lldb/Utility/Log.h"23#include "lldb/Utility/RegularExpression.h"24#include "lldb/Utility/Timer.h"25#include "llvm/Support/MemoryBuffer.h"26 27#include <memory>28#include <optional>29 30using namespace llvm;31using namespace lldb;32using namespace lldb_private;33 34LLDB_PLUGIN_DEFINE(SymbolFileJSON)35 36char SymbolFileJSON::ID;37 38SymbolFileJSON::SymbolFileJSON(lldb::ObjectFileSP objfile_sp)39 : SymbolFileCommon(std::move(objfile_sp)) {}40 41void SymbolFileJSON::Initialize() {42 PluginManager::RegisterPlugin(GetPluginNameStatic(),43 GetPluginDescriptionStatic(), CreateInstance);44}45 46void SymbolFileJSON::Terminate() {47 PluginManager::UnregisterPlugin(CreateInstance);48}49 50llvm::StringRef SymbolFileJSON::GetPluginDescriptionStatic() {51 return "Reads debug symbols from a JSON symbol table.";52}53 54SymbolFile *SymbolFileJSON::CreateInstance(ObjectFileSP objfile_sp) {55 return new SymbolFileJSON(std::move(objfile_sp));56}57 58uint32_t SymbolFileJSON::CalculateAbilities() {59 if (!m_objfile_sp || !llvm::isa<ObjectFileJSON>(*m_objfile_sp))60 return 0;61 62 return GlobalVariables | Functions;63}64 65uint32_t SymbolFileJSON::ResolveSymbolContext(const Address &so_addr,66 SymbolContextItem resolve_scope,67 SymbolContext &sc) {68 std::lock_guard<std::recursive_mutex> guard(GetModuleMutex());69 if (m_objfile_sp->GetSymtab() == nullptr)70 return 0;71 72 uint32_t resolved_flags = 0;73 if (resolve_scope & eSymbolContextSymbol) {74 sc.symbol = m_objfile_sp->GetSymtab()->FindSymbolContainingFileAddress(75 so_addr.GetFileAddress());76 if (sc.symbol)77 resolved_flags |= eSymbolContextSymbol;78 }79 return resolved_flags;80}81 82CompUnitSP SymbolFileJSON::ParseCompileUnitAtIndex(uint32_t idx) { return {}; }83 84void SymbolFileJSON::GetTypes(SymbolContextScope *sc_scope, TypeClass type_mask,85 lldb_private::TypeList &type_list) {}86 87void SymbolFileJSON::AddSymbols(Symtab &symtab) {88 if (!m_objfile_sp)89 return;90 91 Symtab *json_symtab = m_objfile_sp->GetSymtab();92 if (!json_symtab)93 return;94 95 if (&symtab == json_symtab)96 return;97 98 // Merge the two symbol tables.99 const size_t num_new_symbols = json_symtab->GetNumSymbols();100 for (size_t i = 0; i < num_new_symbols; ++i) {101 Symbol *s = json_symtab->SymbolAtIndex(i);102 symtab.AddSymbol(*s);103 }104 symtab.Finalize();105}106