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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_
#include "llvm/Support/MachO.h"
#include "lldb/Core/Address.h"
#include "lldb/Core/RangeMap.h"
#include "lldb/Host/FileSpec.h"
#include "lldb/Host/Mutex.h"
#include "lldb/Symbol/ObjectFile.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:
//------------------------------------------------------------------
// Static Functions
//------------------------------------------------------------------
static void
Initialize();
static void
Terminate();
static const char *
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
MagicBytesMatch (lldb::DataBufferSP& data_sp,
lldb::addr_t offset,
lldb::addr_t length);
//------------------------------------------------------------------
// Member Functions
//------------------------------------------------------------------
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);
virtual
~ObjectFileMachO();
virtual bool
ParseHeader ();
virtual lldb::ByteOrder
GetByteOrder () const;
virtual bool
IsExecutable () const;
virtual uint32_t
GetAddressByteSize () const;
virtual lldb::AddressClass
GetAddressClass (lldb::addr_t file_addr);
virtual lldb_private::Symtab *
GetSymtab();
virtual lldb_private::SectionList *
GetSectionList();
virtual void
Dump (lldb_private::Stream *s);
virtual bool
GetArchitecture (lldb_private::ArchSpec &arch);
virtual bool
GetUUID (lldb_private::UUID* uuid);
virtual uint32_t
GetDependentModules (lldb_private::FileSpecList& files);
//------------------------------------------------------------------
// PluginInterface protocol
//------------------------------------------------------------------
virtual const char *
GetPluginName();
virtual const char *
GetShortPluginName();
virtual uint32_t
GetPluginVersion();
virtual lldb_private::Address
GetEntryPointAddress ();
virtual lldb_private::Address
GetHeaderAddress ();
virtual uint32_t
GetNumThreadContexts ();
virtual lldb::RegisterContextSP
GetThreadContextAtIndex (uint32_t idx, lldb_private::Thread &thread);
virtual ObjectFile::Type
CalculateType();
virtual ObjectFile::Strata
CalculateStrata();
virtual uint32_t
GetVersion (uint32_t *versions, uint32_t num_versions);
protected:
static bool
ParseHeader (lldb_private::DataExtractor &data,
lldb::offset_t *data_offset_ptr,
llvm::MachO::mach_header &header);
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);
// 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 ();
llvm::MachO::mach_header m_header;
static const lldb_private::ConstString &GetSegmentNameTEXT();
static const lldb_private::ConstString &GetSegmentNameDATA();
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;
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;
size_t
ParseSections ();
size_t
ParseSymtab (bool minimize);
};
#endif // liblldb_ObjectFileMachO_h_
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