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//===-- 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::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;
uint32_t GetVersion(uint32_t *versions, uint32_t num_versions) override;
uint32_t GetMinimumOSVersion(uint32_t *versions,
uint32_t num_versions) 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.
lldb_private::UUID GetProcessSharedCacheUUID(lldb_private::Process *);
// 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.
lldb_private::UUID GetLLDBSharedCacheUUID();
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();
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;
std::vector<uint32_t> m_min_os_versions;
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_
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