| 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-exception |
| 6 | // |
| 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 | |
| 30 | using namespace llvm; |
| 31 | using namespace lldb; |
| 32 | using namespace lldb_private; |
| 33 | |
| 34 | LLDB_PLUGIN_DEFINE(SymbolFileJSON) |
| 35 | |
| 36 | char SymbolFileJSON::ID; |
| 37 | |
| 38 | SymbolFileJSON::SymbolFileJSON(lldb::ObjectFileSP objfile_sp) |
| 39 | : SymbolFileCommon(std::move(objfile_sp)) {} |
| 40 | |
| 41 | void SymbolFileJSON::Initialize() { |
| 42 | PluginManager::RegisterPlugin(name: GetPluginNameStatic(), |
| 43 | description: GetPluginDescriptionStatic(), create_callback: CreateInstance); |
| 44 | } |
| 45 | |
| 46 | void SymbolFileJSON::Terminate() { |
| 47 | PluginManager::UnregisterPlugin(create_callback: CreateInstance); |
| 48 | } |
| 49 | |
| 50 | llvm::StringRef SymbolFileJSON::GetPluginDescriptionStatic() { |
| 51 | return "Reads debug symbols from a JSON symbol table."; |
| 52 | } |
| 53 | |
| 54 | SymbolFile *SymbolFileJSON::CreateInstance(ObjectFileSP objfile_sp) { |
| 55 | return new SymbolFileJSON(std::move(objfile_sp)); |
| 56 | } |
| 57 | |
| 58 | uint32_t SymbolFileJSON::CalculateAbilities() { |
| 59 | if (!m_objfile_sp || !llvm::isa<ObjectFileJSON>(Val: *m_objfile_sp)) |
| 60 | return 0; |
| 61 | |
| 62 | return GlobalVariables | Functions; |
| 63 | } |
| 64 | |
| 65 | uint32_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 | file_addr: so_addr.GetFileAddress()); |
| 76 | if (sc.symbol) |
| 77 | resolved_flags |= eSymbolContextSymbol; |
| 78 | } |
| 79 | return resolved_flags; |
| 80 | } |
| 81 | |
| 82 | CompUnitSP SymbolFileJSON::ParseCompileUnitAtIndex(uint32_t idx) { return {}; } |
| 83 | |
| 84 | void SymbolFileJSON::GetTypes(SymbolContextScope *sc_scope, TypeClass type_mask, |
| 85 | lldb_private::TypeList &type_list) {} |
| 86 | |
| 87 | void 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(idx: i); |
| 102 | symtab.AddSymbol(symbol: *s); |
| 103 | } |
| 104 | symtab.Finalize(); |
| 105 | } |
| 106 |