649a607e11
Add support for the new dyld shared cache format on ios etc devices. Small changes for classifying ObjC metadata symbols. llvm-svn: 252588
253 lines
8.3 KiB
C++
253 lines
8.3 KiB
C++
//===-- ObjectFileMachO.h ---------------------------------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#ifndef liblldb_ObjectFileMachO_h_
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#define liblldb_ObjectFileMachO_h_
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// C Includes
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// C++ Includes
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// Other libraries and framework includes
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// Project includes
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#include "lldb/Utility/SafeMachO.h"
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#include "lldb/Core/Address.h"
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#include "lldb/Core/FileSpecList.h"
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#include "lldb/Core/RangeMap.h"
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#include "lldb/Host/FileSpec.h"
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#include "lldb/Host/Mutex.h"
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#include "lldb/Symbol/ObjectFile.h"
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//----------------------------------------------------------------------
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// This class needs to be hidden as eventually belongs in a plugin that
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// will export the ObjectFile protocol
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//----------------------------------------------------------------------
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class ObjectFileMachO :
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public lldb_private::ObjectFile
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{
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public:
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ObjectFileMachO(const lldb::ModuleSP &module_sp,
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lldb::DataBufferSP& data_sp,
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lldb::offset_t data_offset,
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const lldb_private::FileSpec* file,
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lldb::offset_t offset,
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lldb::offset_t length);
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ObjectFileMachO(const lldb::ModuleSP &module_sp,
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lldb::DataBufferSP& data_sp,
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const lldb::ProcessSP &process_sp,
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lldb::addr_t header_addr);
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~ObjectFileMachO() override = default;
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//------------------------------------------------------------------
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// Static Functions
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//------------------------------------------------------------------
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static void
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Initialize();
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static void
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Terminate();
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static lldb_private::ConstString
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GetPluginNameStatic();
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static const char *
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GetPluginDescriptionStatic();
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static lldb_private::ObjectFile *
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CreateInstance (const lldb::ModuleSP &module_sp,
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lldb::DataBufferSP& data_sp,
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lldb::offset_t data_offset,
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const lldb_private::FileSpec* file,
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lldb::offset_t file_offset,
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lldb::offset_t length);
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static lldb_private::ObjectFile *
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CreateMemoryInstance (const lldb::ModuleSP &module_sp,
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lldb::DataBufferSP& data_sp,
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const lldb::ProcessSP &process_sp,
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lldb::addr_t header_addr);
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static size_t
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GetModuleSpecifications (const lldb_private::FileSpec& file,
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lldb::DataBufferSP& data_sp,
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lldb::offset_t data_offset,
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lldb::offset_t file_offset,
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lldb::offset_t length,
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lldb_private::ModuleSpecList &specs);
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static bool
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SaveCore (const lldb::ProcessSP &process_sp,
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const lldb_private::FileSpec &outfile,
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lldb_private::Error &error);
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static bool
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MagicBytesMatch (lldb::DataBufferSP& data_sp,
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lldb::addr_t offset,
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lldb::addr_t length);
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//------------------------------------------------------------------
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// Member Functions
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//------------------------------------------------------------------
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bool
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ParseHeader() override;
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bool
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SetLoadAddress(lldb_private::Target &target,
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lldb::addr_t value,
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bool value_is_offset) override;
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lldb::ByteOrder
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GetByteOrder() const override;
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bool
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IsExecutable() const override;
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uint32_t
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GetAddressByteSize() const override;
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lldb::AddressClass
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GetAddressClass(lldb::addr_t file_addr) override;
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lldb_private::Symtab *
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GetSymtab() override;
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bool
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IsStripped() override;
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void
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CreateSections(lldb_private::SectionList &unified_section_list) override;
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void
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Dump(lldb_private::Stream *s) override;
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bool
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GetArchitecture(lldb_private::ArchSpec &arch) override;
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bool
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GetUUID(lldb_private::UUID* uuid) override;
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uint32_t
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GetDependentModules(lldb_private::FileSpecList& files) override;
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lldb_private::FileSpecList
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GetReExportedLibraries() override
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{
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return m_reexported_dylibs;
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}
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lldb_private::Address
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GetEntryPointAddress() override;
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lldb_private::Address
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GetHeaderAddress() override;
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uint32_t
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GetNumThreadContexts() override;
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lldb::RegisterContextSP
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GetThreadContextAtIndex(uint32_t idx, lldb_private::Thread &thread) override;
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ObjectFile::Type
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CalculateType() override;
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ObjectFile::Strata
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CalculateStrata() override;
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uint32_t
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GetVersion(uint32_t *versions, uint32_t num_versions) override;
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uint32_t
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GetMinimumOSVersion(uint32_t *versions, uint32_t num_versions) override;
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uint32_t
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GetSDKVersion(uint32_t *versions, uint32_t num_versions) override;
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bool
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GetIsDynamicLinkEditor() override;
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static bool
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ParseHeader (lldb_private::DataExtractor &data,
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lldb::offset_t *data_offset_ptr,
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llvm::MachO::mach_header &header);
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//------------------------------------------------------------------
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// PluginInterface protocol
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//------------------------------------------------------------------
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lldb_private::ConstString
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GetPluginName() override;
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uint32_t
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GetPluginVersion() override;
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protected:
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static bool
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GetUUID (const llvm::MachO::mach_header &header,
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const lldb_private::DataExtractor &data,
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lldb::offset_t lc_offset, // Offset to the first load command
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lldb_private::UUID& uuid);
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static bool
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GetArchitecture (const llvm::MachO::mach_header &header,
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const lldb_private::DataExtractor &data,
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lldb::offset_t lc_offset,
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lldb_private::ArchSpec &arch);
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// Intended for same-host arm device debugging where lldb needs to
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// detect libraries in the shared cache and augment the nlist entries
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// with an on-disk dyld_shared_cache file. The process will record
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// the shared cache UUID so the on-disk cache can be matched or rejected
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// correctly.
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lldb_private::UUID
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GetProcessSharedCacheUUID (lldb_private::Process *);
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// Intended for same-host arm device debugging where lldb will read
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// shared cache libraries out of its own memory instead of the remote
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// process' memory as an optimization. If lldb's shared cache UUID
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// does not match the process' shared cache UUID, this optimization
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// should not be used.
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lldb_private::UUID
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GetLLDBSharedCacheUUID ();
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lldb_private::Section *
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GetMachHeaderSection();
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lldb::addr_t
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CalculateSectionLoadAddressForMemoryImage(lldb::addr_t mach_header_load_address,
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const lldb_private::Section *mach_header_section,
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const lldb_private::Section *section);
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lldb_private::UUID
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GetSharedCacheUUID (lldb_private::FileSpec dyld_shared_cache, const lldb::ByteOrder byte_order, const uint32_t addr_byte_size);
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size_t
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ParseSymtab();
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llvm::MachO::mach_header m_header;
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static const lldb_private::ConstString &GetSegmentNameTEXT();
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static const lldb_private::ConstString &GetSegmentNameDATA();
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static const lldb_private::ConstString &GetSegmentNameDATA_DIRTY();
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static const lldb_private::ConstString &GetSegmentNameDATA_CONST();
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static const lldb_private::ConstString &GetSegmentNameOBJC();
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static const lldb_private::ConstString &GetSegmentNameLINKEDIT();
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static const lldb_private::ConstString &GetSectionNameEHFrame();
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llvm::MachO::dysymtab_command m_dysymtab;
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std::vector<llvm::MachO::segment_command_64> m_mach_segments;
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std::vector<llvm::MachO::section_64> m_mach_sections;
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std::vector<uint32_t> m_min_os_versions;
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std::vector<uint32_t> m_sdk_versions;
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typedef lldb_private::RangeVector<uint32_t, uint32_t> FileRangeArray;
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lldb_private::Address m_entry_point_address;
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FileRangeArray m_thread_context_offsets;
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bool m_thread_context_offsets_valid;
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lldb_private::FileSpecList m_reexported_dylibs;
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};
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#endif // liblldb_ObjectFileMachO_h_
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