| //===-- ObjectFile.cpp ------------------------------------------*- C++ -*-===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "lldb/lldb-private.h" |
| #include "lldb/lldb-private-log.h" |
| #include "lldb/Core/DataBuffer.h" |
| #include "lldb/Core/DataBufferHeap.h" |
| #include "lldb/Core/Log.h" |
| #include "lldb/Core/Module.h" |
| #include "lldb/Core/PluginManager.h" |
| #include "lldb/Core/RegularExpression.h" |
| #include "lldb/Core/Timer.h" |
| #include "lldb/Symbol/ObjectFile.h" |
| #include "lldb/Symbol/ObjectContainer.h" |
| #include "lldb/Symbol/SymbolFile.h" |
| #include "lldb/Target/Process.h" |
| |
| using namespace lldb; |
| using namespace lldb_private; |
| |
| ObjectFileSP |
| ObjectFile::FindPlugin (const lldb::ModuleSP &module_sp, const FileSpec* file, addr_t file_offset, addr_t file_size, DataBufferSP &file_data_sp) |
| { |
| ObjectFileSP object_file_sp; |
| |
| if (module_sp) |
| { |
| Timer scoped_timer (__PRETTY_FUNCTION__, |
| "ObjectFile::FindPlugin (module = %s/%s, file = %p, file_offset = 0x%z8.8x, file_size = 0x%z8.8x)", |
| module_sp->GetFileSpec().GetDirectory().AsCString(), |
| module_sp->GetFileSpec().GetFilename().AsCString(), |
| file, file_offset, file_size); |
| if (file) |
| { |
| // Memory map the entire file contents |
| if (!file_data_sp) |
| { |
| assert (file_offset == 0); |
| file_data_sp = file->MemoryMapFileContents(file_offset, file_size); |
| } |
| |
| if (!file_data_sp || file_data_sp->GetByteSize() == 0) |
| { |
| // Check for archive file with format "/path/to/archive.a(object.o)" |
| char path_with_object[PATH_MAX*2]; |
| module_sp->GetFileSpec().GetPath(path_with_object, sizeof(path_with_object)); |
| |
| RegularExpression g_object_regex("(.*)\\(([^\\)]+)\\)$"); |
| if (g_object_regex.Execute (path_with_object, 2)) |
| { |
| FileSpec archive_file; |
| std::string path; |
| std::string object; |
| if (g_object_regex.GetMatchAtIndex (path_with_object, 1, path) && |
| g_object_regex.GetMatchAtIndex (path_with_object, 2, object)) |
| { |
| archive_file.SetFile (path.c_str(), false); |
| file_size = archive_file.GetByteSize(); |
| if (file_size > 0) |
| { |
| module_sp->SetFileSpecAndObjectName (archive_file, ConstString(object.c_str())); |
| file_data_sp = archive_file.MemoryMapFileContents(file_offset, file_size); |
| } |
| } |
| } |
| } |
| |
| if (file_data_sp && file_data_sp->GetByteSize() > 0) |
| { |
| uint32_t idx; |
| |
| // Check if this is a normal object file by iterating through |
| // all object file plugin instances. |
| ObjectFileCreateInstance create_object_file_callback; |
| for (idx = 0; (create_object_file_callback = PluginManager::GetObjectFileCreateCallbackAtIndex(idx)) != NULL; ++idx) |
| { |
| object_file_sp.reset (create_object_file_callback(module_sp, file_data_sp, file, file_offset, file_size)); |
| if (object_file_sp.get()) |
| return object_file_sp; |
| } |
| |
| // Check if this is a object container by iterating through |
| // all object container plugin instances and then trying to get |
| // an object file from the container. |
| ObjectContainerCreateInstance create_object_container_callback; |
| for (idx = 0; (create_object_container_callback = PluginManager::GetObjectContainerCreateCallbackAtIndex(idx)) != NULL; ++idx) |
| { |
| std::auto_ptr<ObjectContainer> object_container_ap(create_object_container_callback(module_sp, file_data_sp, file, file_offset, file_size)); |
| |
| if (object_container_ap.get()) |
| object_file_sp = object_container_ap->GetObjectFile(file); |
| |
| if (object_file_sp.get()) |
| return object_file_sp; |
| } |
| } |
| } |
| } |
| // We didn't find it, so clear our shared pointer in case it |
| // contains anything and return an empty shared pointer |
| object_file_sp.reset(); |
| return object_file_sp; |
| } |
| |
| ObjectFileSP |
| ObjectFile::FindPlugin (const lldb::ModuleSP &module_sp, |
| const ProcessSP &process_sp, |
| lldb::addr_t header_addr, |
| DataBufferSP &file_data_sp) |
| { |
| ObjectFileSP object_file_sp; |
| |
| if (module_sp) |
| { |
| Timer scoped_timer (__PRETTY_FUNCTION__, |
| "ObjectFile::FindPlugin (module = %s/%s, process = %p, header_addr = 0x%llx)", |
| module_sp->GetFileSpec().GetDirectory().AsCString(), |
| module_sp->GetFileSpec().GetFilename().AsCString(), |
| process_sp.get(), header_addr); |
| uint32_t idx; |
| |
| // Check if this is a normal object file by iterating through |
| // all object file plugin instances. |
| ObjectFileCreateMemoryInstance create_callback; |
| for (idx = 0; (create_callback = PluginManager::GetObjectFileCreateMemoryCallbackAtIndex(idx)) != NULL; ++idx) |
| { |
| object_file_sp.reset (create_callback(module_sp, file_data_sp, process_sp, header_addr)); |
| if (object_file_sp.get()) |
| return object_file_sp; |
| } |
| |
| } |
| // We didn't find it, so clear our shared pointer in case it |
| // contains anything and return an empty shared pointer |
| object_file_sp.reset(); |
| return object_file_sp; |
| } |
| |
| ObjectFile::ObjectFile (const lldb::ModuleSP &module_sp, |
| const FileSpec *file_spec_ptr, |
| addr_t file_offset, |
| addr_t file_size, |
| DataBufferSP& file_data_sp) : |
| ModuleChild (module_sp), |
| m_file (), // This file could be different from the original module's file |
| m_type (eTypeInvalid), |
| m_strata (eStrataInvalid), |
| m_offset (file_offset), |
| m_length (file_size), |
| m_data (), |
| m_unwind_table (*this), |
| m_process_wp(), |
| m_memory_addr (LLDB_INVALID_ADDRESS) |
| { |
| if (file_spec_ptr) |
| m_file = *file_spec_ptr; |
| if (file_data_sp) |
| m_data.SetData (file_data_sp, file_offset, file_size); |
| LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_OBJECT)); |
| if (log) |
| { |
| if (m_file) |
| { |
| log->Printf ("%p ObjectFile::ObjectFile () module = %s/%s, file = %s/%s, offset = 0x%8.8llx, size = %llu\n", |
| this, |
| module_sp->GetFileSpec().GetDirectory().AsCString(), |
| module_sp->GetFileSpec().GetFilename().AsCString(), |
| m_file.GetDirectory().AsCString(), |
| m_file.GetFilename().AsCString(), |
| m_offset, |
| m_length); |
| } |
| else |
| { |
| log->Printf ("%p ObjectFile::ObjectFile () module = %s/%s, file = <NULL>, offset = 0x%8.8llx, size = %llu\n", |
| this, |
| module_sp->GetFileSpec().GetDirectory().AsCString(), |
| module_sp->GetFileSpec().GetFilename().AsCString(), |
| m_offset, |
| m_length); |
| } |
| } |
| } |
| |
| |
| ObjectFile::ObjectFile (const lldb::ModuleSP &module_sp, |
| const ProcessSP &process_sp, |
| lldb::addr_t header_addr, |
| DataBufferSP& header_data_sp) : |
| ModuleChild (module_sp), |
| m_file (), |
| m_type (eTypeInvalid), |
| m_strata (eStrataInvalid), |
| m_offset (header_addr), |
| m_length (0), |
| m_data (), |
| m_unwind_table (*this), |
| m_process_wp (process_sp), |
| m_memory_addr (header_addr) |
| { |
| if (header_data_sp) |
| m_data.SetData (header_data_sp, 0, header_data_sp->GetByteSize()); |
| LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_OBJECT)); |
| if (log) |
| { |
| log->Printf ("%p ObjectFile::ObjectFile () module = %s/%s, process = %p, header_addr = 0x%llx\n", |
| this, |
| module_sp->GetFileSpec().GetDirectory().AsCString(), |
| module_sp->GetFileSpec().GetFilename().AsCString(), |
| process_sp.get(), |
| m_offset); |
| } |
| } |
| |
| |
| ObjectFile::~ObjectFile() |
| { |
| LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_OBJECT)); |
| if (log) |
| { |
| ModuleSP module_sp (GetModule()); |
| if (m_file) |
| { |
| log->Printf ("%p ObjectFile::~ObjectFile () module = %s/%s, file = %s/%s, offset = 0x%8.8llx, size = %llu\n", |
| this, |
| module_sp->GetFileSpec().GetDirectory().AsCString(), |
| module_sp->GetFileSpec().GetFilename().AsCString(), |
| m_file.GetDirectory().AsCString(), |
| m_file.GetFilename().AsCString(), |
| m_offset, |
| m_length); |
| } |
| else |
| { |
| log->Printf ("%p ObjectFile::~ObjectFile () module = %s/%s, file = <NULL>, offset = 0x%8.8llx, size = %llu\n", |
| this, |
| module_sp->GetFileSpec().GetDirectory().AsCString(), |
| module_sp->GetFileSpec().GetFilename().AsCString(), |
| m_offset, |
| m_length); |
| } |
| } |
| } |
| |
| bool |
| ObjectFile::SetModulesArchitecture (const ArchSpec &new_arch) |
| { |
| ModuleSP module_sp (GetModule()); |
| if (module_sp) |
| return module_sp->SetArchitecture (new_arch); |
| return false; |
| } |
| |
| AddressClass |
| ObjectFile::GetAddressClass (addr_t file_addr) |
| { |
| Symtab *symtab = GetSymtab(); |
| if (symtab) |
| { |
| Symbol *symbol = symtab->FindSymbolContainingFileAddress(file_addr); |
| if (symbol) |
| { |
| if (symbol->ValueIsAddress()) |
| { |
| const SectionSP section_sp (symbol->GetAddress().GetSection()); |
| if (section_sp) |
| { |
| const SectionType section_type = section_sp->GetType(); |
| switch (section_type) |
| { |
| case eSectionTypeInvalid: return eAddressClassUnknown; |
| case eSectionTypeCode: return eAddressClassCode; |
| case eSectionTypeContainer: return eAddressClassUnknown; |
| case eSectionTypeData: |
| case eSectionTypeDataCString: |
| case eSectionTypeDataCStringPointers: |
| case eSectionTypeDataSymbolAddress: |
| case eSectionTypeData4: |
| case eSectionTypeData8: |
| case eSectionTypeData16: |
| case eSectionTypeDataPointers: |
| case eSectionTypeZeroFill: |
| case eSectionTypeDataObjCMessageRefs: |
| case eSectionTypeDataObjCCFStrings: |
| return eAddressClassData; |
| case eSectionTypeDebug: |
| case eSectionTypeDWARFDebugAbbrev: |
| case eSectionTypeDWARFDebugAranges: |
| case eSectionTypeDWARFDebugFrame: |
| case eSectionTypeDWARFDebugInfo: |
| case eSectionTypeDWARFDebugLine: |
| case eSectionTypeDWARFDebugLoc: |
| case eSectionTypeDWARFDebugMacInfo: |
| case eSectionTypeDWARFDebugPubNames: |
| case eSectionTypeDWARFDebugPubTypes: |
| case eSectionTypeDWARFDebugRanges: |
| case eSectionTypeDWARFDebugStr: |
| case eSectionTypeDWARFAppleNames: |
| case eSectionTypeDWARFAppleTypes: |
| case eSectionTypeDWARFAppleNamespaces: |
| case eSectionTypeDWARFAppleObjC: |
| return eAddressClassDebug; |
| case eSectionTypeEHFrame: return eAddressClassRuntime; |
| case eSectionTypeOther: return eAddressClassUnknown; |
| } |
| } |
| } |
| |
| const SymbolType symbol_type = symbol->GetType(); |
| switch (symbol_type) |
| { |
| case eSymbolTypeAny: return eAddressClassUnknown; |
| case eSymbolTypeAbsolute: return eAddressClassUnknown; |
| case eSymbolTypeCode: return eAddressClassCode; |
| case eSymbolTypeTrampoline: return eAddressClassCode; |
| case eSymbolTypeData: return eAddressClassData; |
| case eSymbolTypeRuntime: return eAddressClassRuntime; |
| case eSymbolTypeException: return eAddressClassRuntime; |
| case eSymbolTypeSourceFile: return eAddressClassDebug; |
| case eSymbolTypeHeaderFile: return eAddressClassDebug; |
| case eSymbolTypeObjectFile: return eAddressClassDebug; |
| case eSymbolTypeCommonBlock: return eAddressClassDebug; |
| case eSymbolTypeBlock: return eAddressClassDebug; |
| case eSymbolTypeLocal: return eAddressClassData; |
| case eSymbolTypeParam: return eAddressClassData; |
| case eSymbolTypeVariable: return eAddressClassData; |
| case eSymbolTypeVariableType: return eAddressClassDebug; |
| case eSymbolTypeLineEntry: return eAddressClassDebug; |
| case eSymbolTypeLineHeader: return eAddressClassDebug; |
| case eSymbolTypeScopeBegin: return eAddressClassDebug; |
| case eSymbolTypeScopeEnd: return eAddressClassDebug; |
| case eSymbolTypeAdditional: return eAddressClassUnknown; |
| case eSymbolTypeCompiler: return eAddressClassDebug; |
| case eSymbolTypeInstrumentation:return eAddressClassDebug; |
| case eSymbolTypeUndefined: return eAddressClassUnknown; |
| case eSymbolTypeObjCClass: return eAddressClassRuntime; |
| case eSymbolTypeObjCMetaClass: return eAddressClassRuntime; |
| case eSymbolTypeObjCIVar: return eAddressClassRuntime; |
| } |
| } |
| } |
| return eAddressClassUnknown; |
| } |
| |
| DataBufferSP |
| ObjectFile::ReadMemory (const ProcessSP &process_sp, lldb::addr_t addr, size_t byte_size) |
| { |
| DataBufferSP data_sp; |
| if (process_sp) |
| { |
| std::auto_ptr<DataBufferHeap> data_ap (new DataBufferHeap (byte_size, 0)); |
| Error error; |
| const size_t bytes_read = process_sp->ReadMemory (addr, |
| data_ap->GetBytes(), |
| data_ap->GetByteSize(), |
| error); |
| if (bytes_read == byte_size) |
| data_sp.reset (data_ap.release()); |
| } |
| return data_sp; |
| } |
| |
| size_t |
| ObjectFile::GetData (off_t offset, size_t length, DataExtractor &data) const |
| { |
| // The entire file has already been mmap'ed into m_data, so just copy from there |
| // as the back mmap buffer will be shared with shared pointers. |
| return data.SetData (m_data, offset, length); |
| } |
| |
| size_t |
| ObjectFile::CopyData (off_t offset, size_t length, void *dst) const |
| { |
| // The entire file has already been mmap'ed into m_data, so just copy from there |
| return m_data.CopyByteOrderedData (offset, length, dst, length, lldb::endian::InlHostByteOrder()); |
| } |
| |
| |
| size_t |
| ObjectFile::ReadSectionData (const Section *section, off_t section_offset, void *dst, size_t dst_len) const |
| { |
| if (IsInMemory()) |
| { |
| ProcessSP process_sp (m_process_wp.lock()); |
| if (process_sp) |
| { |
| Error error; |
| return process_sp->ReadMemory (section->GetLoadBaseAddress (&process_sp->GetTarget()) + section_offset, dst, dst_len, error); |
| } |
| } |
| else |
| { |
| const uint64_t section_file_size = section->GetFileSize(); |
| if (section_offset < section_file_size) |
| { |
| const uint64_t section_bytes_left = section_file_size - section_offset; |
| uint64_t section_dst_len = dst_len; |
| if (section_dst_len > section_bytes_left) |
| section_dst_len = section_bytes_left; |
| return CopyData (section->GetFileOffset() + section_offset, section_dst_len, dst); |
| } |
| } |
| return 0; |
| } |
| |
| //---------------------------------------------------------------------- |
| // Get the section data the file on disk |
| //---------------------------------------------------------------------- |
| size_t |
| ObjectFile::ReadSectionData (const Section *section, DataExtractor& section_data) const |
| { |
| if (IsInMemory()) |
| { |
| ProcessSP process_sp (m_process_wp.lock()); |
| if (process_sp) |
| { |
| DataBufferSP data_sp (ReadMemory (process_sp, section->GetLoadBaseAddress (&process_sp->GetTarget()), section->GetByteSize())); |
| if (data_sp) |
| { |
| section_data.SetData (data_sp, 0, data_sp->GetByteSize()); |
| section_data.SetByteOrder (process_sp->GetByteOrder()); |
| section_data.SetAddressByteSize (process_sp->GetAddressByteSize()); |
| return section_data.GetByteSize(); |
| } |
| } |
| } |
| else |
| { |
| // The object file now contains a full mmap'ed copy of the object file data, so just use this |
| return MemoryMapSectionData (section, section_data); |
| } |
| section_data.Clear(); |
| return 0; |
| } |
| |
| size_t |
| ObjectFile::MemoryMapSectionData (const Section *section, DataExtractor& section_data) const |
| { |
| if (IsInMemory()) |
| { |
| return ReadSectionData (section, section_data); |
| } |
| else |
| { |
| // The object file now contains a full mmap'ed copy of the object file data, so just use this |
| return GetData(section->GetFileOffset(), section->GetFileSize(), section_data); |
| } |
| section_data.Clear(); |
| return 0; |
| } |
| |
