1 //===-- ObjectFileJIT.h -----------------------------------------*- C++ -*-===// 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 #ifndef LLDB_EXPRESSION_OBJECTFILEJIT_H 10 #define LLDB_EXPRESSION_OBJECTFILEJIT_H 11 12 #include "lldb/Core/Address.h" 13 #include "lldb/Core/Section.h" 14 #include "lldb/Symbol/ObjectFile.h" 15 #include "lldb/Symbol/Symtab.h" 16 #include "lldb/Utility/ArchSpec.h" 17 18 namespace lldb_private { 19 20 class ObjectFileJITDelegate { 21 public: 22 ObjectFileJITDelegate() = default; 23 virtual ~ObjectFileJITDelegate() = default; 24 virtual lldb::ByteOrder GetByteOrder() const = 0; 25 virtual uint32_t GetAddressByteSize() const = 0; 26 virtual void PopulateSymtab(lldb_private::ObjectFile *obj_file, 27 lldb_private::Symtab &symtab) = 0; 28 virtual void PopulateSectionList(lldb_private::ObjectFile *obj_file, 29 lldb_private::SectionList §ion_list) = 0; 30 virtual ArchSpec GetArchitecture() = 0; 31 }; 32 33 class ObjectFileJIT : public ObjectFile { 34 public: 35 ObjectFileJIT(const lldb::ModuleSP &module_sp, 36 const lldb::ObjectFileJITDelegateSP &delegate_sp); 37 38 ~ObjectFileJIT() override; 39 40 // Static Functions 41 static void Initialize(); 42 43 static void Terminate(); 44 GetPluginNameStatic()45 static llvm::StringRef GetPluginNameStatic() { return "jit"; } 46 GetPluginDescriptionStatic()47 static llvm::StringRef GetPluginDescriptionStatic() { 48 return "JIT code object file"; 49 } 50 51 static lldb_private::ObjectFile * 52 CreateInstance(const lldb::ModuleSP &module_sp, lldb::DataBufferSP data_sp, 53 lldb::offset_t data_offset, const lldb_private::FileSpec *file, 54 lldb::offset_t file_offset, lldb::offset_t length); 55 56 static lldb_private::ObjectFile *CreateMemoryInstance( 57 const lldb::ModuleSP &module_sp, lldb::WritableDataBufferSP data_sp, 58 const lldb::ProcessSP &process_sp, lldb::addr_t header_addr); 59 60 static size_t GetModuleSpecifications(const lldb_private::FileSpec &file, 61 lldb::DataBufferSP &data_sp, 62 lldb::offset_t data_offset, 63 lldb::offset_t file_offset, 64 lldb::offset_t length, 65 lldb_private::ModuleSpecList &specs); 66 67 // LLVM RTTI support 68 static char ID; isA(const void * ClassID)69 bool isA(const void *ClassID) const override { 70 return ClassID == &ID || ObjectFile::isA(ClassID); 71 } classof(const ObjectFile * obj)72 static bool classof(const ObjectFile *obj) { return obj->isA(&ID); } 73 74 // Member Functions 75 bool ParseHeader() override; 76 77 bool SetLoadAddress(lldb_private::Target &target, lldb::addr_t value, 78 bool value_is_offset) override; 79 80 lldb::ByteOrder GetByteOrder() const override; 81 82 bool IsExecutable() const override; 83 84 uint32_t GetAddressByteSize() const override; 85 86 void ParseSymtab(lldb_private::Symtab &symtab) override; 87 88 bool IsStripped() override; 89 90 void CreateSections(lldb_private::SectionList &unified_section_list) override; 91 92 void Dump(lldb_private::Stream *s) override; 93 94 lldb_private::ArchSpec GetArchitecture() override; 95 96 lldb_private::UUID GetUUID() override; 97 98 uint32_t GetDependentModules(lldb_private::FileSpecList &files) override; 99 100 size_t ReadSectionData(lldb_private::Section *section, 101 lldb::offset_t section_offset, void *dst, 102 size_t dst_len) override; 103 104 size_t ReadSectionData(lldb_private::Section *section, 105 lldb_private::DataExtractor §ion_data) override; 106 107 lldb_private::Address GetEntryPointAddress() override; 108 109 lldb_private::Address GetBaseAddress() override; 110 111 ObjectFile::Type CalculateType() override; 112 113 ObjectFile::Strata CalculateStrata() override; 114 115 // PluginInterface protocol GetPluginName()116 llvm::StringRef GetPluginName() override { return GetPluginNameStatic(); } 117 118 protected: 119 lldb::ObjectFileJITDelegateWP m_delegate_wp; 120 }; 121 } // namespace lldb_private 122 123 #endif // LLDB_EXPRESSION_OBJECTFILEJIT_H 124