| //===-- ObjectFileMachO.h ---------------------------------------*- C++ -*-===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef liblldb_ObjectFileMachO_h_ |
| #define liblldb_ObjectFileMachO_h_ |
| |
| // C Includes |
| // C++ Includes |
| // Other libraries and framework includes |
| // Project includes |
| #include "lldb/Core/Address.h" |
| #include "lldb/Core/FileSpecList.h" |
| #include "lldb/Core/RangeMap.h" |
| #include "lldb/Symbol/ObjectFile.h" |
| #include "lldb/Utility/FileSpec.h" |
| #include "lldb/Utility/SafeMachO.h" |
| #include "lldb/Utility/UUID.h" |
| |
| //---------------------------------------------------------------------- |
| // This class needs to be hidden as eventually belongs in a plugin that |
| // will export the ObjectFile protocol |
| //---------------------------------------------------------------------- |
| class ObjectFileMachO : public lldb_private::ObjectFile { |
| public: |
| ObjectFileMachO(const lldb::ModuleSP &module_sp, lldb::DataBufferSP &data_sp, |
| lldb::offset_t data_offset, |
| const lldb_private::FileSpec *file, lldb::offset_t offset, |
| lldb::offset_t length); |
| |
| ObjectFileMachO(const lldb::ModuleSP &module_sp, lldb::DataBufferSP &data_sp, |
| const lldb::ProcessSP &process_sp, lldb::addr_t header_addr); |
| |
| ~ObjectFileMachO() override = default; |
| |
| //------------------------------------------------------------------ |
| // Static Functions |
| //------------------------------------------------------------------ |
| static void Initialize(); |
| |
| static void Terminate(); |
| |
| static lldb_private::ConstString GetPluginNameStatic(); |
| |
| static const char *GetPluginDescriptionStatic(); |
| |
| static lldb_private::ObjectFile * |
| CreateInstance(const lldb::ModuleSP &module_sp, lldb::DataBufferSP &data_sp, |
| lldb::offset_t data_offset, const lldb_private::FileSpec *file, |
| lldb::offset_t file_offset, lldb::offset_t length); |
| |
| static lldb_private::ObjectFile *CreateMemoryInstance( |
| const lldb::ModuleSP &module_sp, lldb::DataBufferSP &data_sp, |
| const lldb::ProcessSP &process_sp, lldb::addr_t header_addr); |
| |
| static size_t GetModuleSpecifications(const lldb_private::FileSpec &file, |
| lldb::DataBufferSP &data_sp, |
| lldb::offset_t data_offset, |
| lldb::offset_t file_offset, |
| lldb::offset_t length, |
| lldb_private::ModuleSpecList &specs); |
| |
| static bool SaveCore(const lldb::ProcessSP &process_sp, |
| const lldb_private::FileSpec &outfile, |
| lldb_private::Status &error); |
| |
| static bool MagicBytesMatch(lldb::DataBufferSP &data_sp, lldb::addr_t offset, |
| lldb::addr_t length); |
| |
| //------------------------------------------------------------------ |
| // Member Functions |
| //------------------------------------------------------------------ |
| bool ParseHeader() override; |
| |
| bool SetLoadAddress(lldb_private::Target &target, lldb::addr_t value, |
| bool value_is_offset) override; |
| |
| lldb::ByteOrder GetByteOrder() const override; |
| |
| bool IsExecutable() const override; |
| |
| uint32_t GetAddressByteSize() const override; |
| |
| lldb_private::AddressClass GetAddressClass(lldb::addr_t file_addr) override; |
| |
| lldb_private::Symtab *GetSymtab() override; |
| |
| bool IsStripped() override; |
| |
| void CreateSections(lldb_private::SectionList &unified_section_list) override; |
| |
| void Dump(lldb_private::Stream *s) override; |
| |
| bool GetArchitecture(lldb_private::ArchSpec &arch) override; |
| |
| bool GetUUID(lldb_private::UUID *uuid) override; |
| |
| uint32_t GetDependentModules(lldb_private::FileSpecList &files) override; |
| |
| lldb_private::FileSpecList GetReExportedLibraries() override { |
| return m_reexported_dylibs; |
| } |
| |
| lldb_private::Address GetEntryPointAddress() override; |
| |
| lldb_private::Address GetHeaderAddress() override; |
| |
| uint32_t GetNumThreadContexts() override; |
| |
| std::string GetIdentifierString() override; |
| |
| bool GetCorefileMainBinaryInfo (lldb::addr_t &address, lldb_private::UUID &uuid) override; |
| |
| lldb::RegisterContextSP |
| GetThreadContextAtIndex(uint32_t idx, lldb_private::Thread &thread) override; |
| |
| ObjectFile::Type CalculateType() override; |
| |
| ObjectFile::Strata CalculateStrata() override; |
| |
| llvm::VersionTuple GetVersion() override; |
| |
| llvm::VersionTuple GetMinimumOSVersion() override; |
| |
| uint32_t GetSDKVersion(uint32_t *versions, uint32_t num_versions) override; |
| |
| bool GetIsDynamicLinkEditor() override; |
| |
| static bool ParseHeader(lldb_private::DataExtractor &data, |
| lldb::offset_t *data_offset_ptr, |
| llvm::MachO::mach_header &header); |
| |
| bool AllowAssemblyEmulationUnwindPlans() override; |
| |
| //------------------------------------------------------------------ |
| // PluginInterface protocol |
| //------------------------------------------------------------------ |
| lldb_private::ConstString GetPluginName() override; |
| |
| uint32_t GetPluginVersion() override; |
| |
| protected: |
| static bool |
| GetUUID(const llvm::MachO::mach_header &header, |
| const lldb_private::DataExtractor &data, |
| lldb::offset_t lc_offset, // Offset to the first load command |
| lldb_private::UUID &uuid); |
| |
| static bool GetArchitecture(const llvm::MachO::mach_header &header, |
| const lldb_private::DataExtractor &data, |
| lldb::offset_t lc_offset, |
| lldb_private::ArchSpec &arch); |
| |
| // Intended for same-host arm device debugging where lldb needs to |
| // detect libraries in the shared cache and augment the nlist entries |
| // with an on-disk dyld_shared_cache file. The process will record |
| // the shared cache UUID so the on-disk cache can be matched or rejected |
| // correctly. |
| void GetProcessSharedCacheUUID(lldb_private::Process *, lldb::addr_t &base_addr, lldb_private::UUID &uuid); |
| |
| // Intended for same-host arm device debugging where lldb will read |
| // shared cache libraries out of its own memory instead of the remote |
| // process' memory as an optimization. If lldb's shared cache UUID |
| // does not match the process' shared cache UUID, this optimization |
| // should not be used. |
| void GetLLDBSharedCacheUUID(lldb::addr_t &base_addir, lldb_private::UUID &uuid); |
| |
| lldb_private::Section *GetMachHeaderSection(); |
| |
| lldb::addr_t CalculateSectionLoadAddressForMemoryImage( |
| lldb::addr_t mach_header_load_address, |
| const lldb_private::Section *mach_header_section, |
| const lldb_private::Section *section); |
| |
| lldb_private::UUID |
| GetSharedCacheUUID(lldb_private::FileSpec dyld_shared_cache, |
| const lldb::ByteOrder byte_order, |
| const uint32_t addr_byte_size); |
| |
| size_t ParseSymtab(); |
| |
| typedef lldb_private::RangeArray<uint32_t, uint32_t, 8> EncryptedFileRanges; |
| EncryptedFileRanges GetEncryptedFileRanges(); |
| |
| struct SegmentParsingContext; |
| void ProcessDysymtabCommand(const llvm::MachO::load_command &load_cmd, |
| lldb::offset_t offset); |
| void ProcessSegmentCommand(const llvm::MachO::load_command &load_cmd, |
| lldb::offset_t offset, uint32_t cmd_idx, |
| SegmentParsingContext &context); |
| void SanitizeSegmentCommand(llvm::MachO::segment_command_64 &seg_cmd, |
| uint32_t cmd_idx); |
| |
| llvm::MachO::mach_header m_header; |
| static const lldb_private::ConstString &GetSegmentNameTEXT(); |
| static const lldb_private::ConstString &GetSegmentNameDATA(); |
| static const lldb_private::ConstString &GetSegmentNameDATA_DIRTY(); |
| static const lldb_private::ConstString &GetSegmentNameDATA_CONST(); |
| static const lldb_private::ConstString &GetSegmentNameOBJC(); |
| static const lldb_private::ConstString &GetSegmentNameLINKEDIT(); |
| static const lldb_private::ConstString &GetSectionNameEHFrame(); |
| |
| llvm::MachO::dysymtab_command m_dysymtab; |
| std::vector<llvm::MachO::segment_command_64> m_mach_segments; |
| std::vector<llvm::MachO::section_64> m_mach_sections; |
| llvm::Optional<llvm::VersionTuple> m_min_os_version; |
| std::vector<uint32_t> m_sdk_versions; |
| typedef lldb_private::RangeVector<uint32_t, uint32_t> FileRangeArray; |
| lldb_private::Address m_entry_point_address; |
| FileRangeArray m_thread_context_offsets; |
| bool m_thread_context_offsets_valid; |
| lldb_private::FileSpecList m_reexported_dylibs; |
| bool m_allow_assembly_emulation_unwind_plans; |
| }; |
| |
| #endif // liblldb_ObjectFileMachO_h_ |