1 //===-- ObjectFile.cpp ------------------------------------------*- C++ -*-===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 #include "lldb/lldb-private.h" 11 #include "lldb/Core/Module.h" 12 #include "lldb/Core/PluginManager.h" 13 #include "lldb/Core/RegularExpression.h" 14 #include "lldb/Core/Timer.h" 15 #include "lldb/Symbol/ObjectFile.h" 16 #include "lldb/Symbol/ObjectContainer.h" 17 #include "lldb/Symbol/SymbolFile.h" 18 19 using namespace lldb; 20 using namespace lldb_private; 21 22 ObjectFile* 23 ObjectFile::FindPlugin (Module* module, const FileSpec* file, lldb::addr_t file_offset, lldb::addr_t file_size) 24 { 25 Timer scoped_timer (__PRETTY_FUNCTION__, 26 "ObjectFile::FindPlugin (module = %s/%s, file = %p, file_offset = 0x%z8.8x, file_size = 0x%z8.8x)", 27 module->GetFileSpec().GetDirectory().AsCString(), 28 module->GetFileSpec().GetFilename().AsCString(), 29 file, file_offset, file_size); 30 std::auto_ptr<ObjectFile> object_file_ap; 31 32 if (module != NULL) 33 { 34 if (file) 35 { 36 if (file_size == 0) 37 file_size = file->GetByteSize(); 38 39 if (file_size == 0) 40 { 41 // Check for archive file with format "/path/to/archive.a(object.o)" 42 char path_with_object[PATH_MAX*2]; 43 module->GetFileSpec().GetPath(path_with_object, sizeof(path_with_object)); 44 45 RegularExpression g_object_regex("(.*)\\(([^\\)]+)\\)$"); 46 if (g_object_regex.Execute (path_with_object, 2)) 47 { 48 FileSpec archive_file; 49 std::string path; 50 std::string object; 51 if (g_object_regex.GetMatchAtIndex (path_with_object, 1, path) && 52 g_object_regex.GetMatchAtIndex (path_with_object, 2, object)) 53 { 54 archive_file.SetFile (path.c_str(), false); 55 file_size = archive_file.GetByteSize(); 56 if (file_size > 0) 57 module->SetFileSpecAndObjectName (archive_file, ConstString(object.c_str())); 58 } 59 } 60 } 61 62 // No need to delegate further if (file_offset, file_size) exceeds the total file size. 63 // This is the base case. 64 // if (file_offset + file_size > file->GetByteSize()) 65 // return NULL; 66 67 DataBufferSP file_header_data_sp(file->ReadFileContents(file_offset, 512)); 68 uint32_t idx; 69 70 // Check if this is a normal object file by iterating through 71 // all object file plugin instances. 72 ObjectFileCreateInstance create_object_file_callback; 73 for (idx = 0; (create_object_file_callback = PluginManager::GetObjectFileCreateCallbackAtIndex(idx)) != NULL; ++idx) 74 { 75 object_file_ap.reset (create_object_file_callback(module, file_header_data_sp, file, file_offset, file_size)); 76 if (object_file_ap.get()) 77 return object_file_ap.release(); 78 } 79 80 // Check if this is a object container by iterating through 81 // all object container plugin instances and then trying to get 82 // an object file from the container. 83 ObjectContainerCreateInstance create_object_container_callback; 84 for (idx = 0; (create_object_container_callback = PluginManager::GetObjectContainerCreateCallbackAtIndex(idx)) != NULL; ++idx) 85 { 86 std::auto_ptr<ObjectContainer> object_container_ap(create_object_container_callback(module, file_header_data_sp, file, file_offset, file_size)); 87 88 if (object_container_ap.get()) 89 object_file_ap.reset (object_container_ap->GetObjectFile(file)); 90 91 if (object_file_ap.get()) 92 return object_file_ap.release(); 93 } 94 } 95 } 96 return NULL; 97 } 98 99 bool 100 ObjectFile::SetModulesArchitecture (const ArchSpec &new_arch) 101 { 102 return m_module->SetArchitecture (new_arch); 103 } 104 105 AddressClass 106 ObjectFile::GetAddressClass (lldb::addr_t file_addr) 107 { 108 Symtab *symtab = GetSymtab(); 109 if (symtab) 110 { 111 Symbol *symbol = symtab->FindSymbolContainingFileAddress(file_addr); 112 if (symbol) 113 { 114 const AddressRange *range_ptr = symbol->GetAddressRangePtr(); 115 if (range_ptr) 116 { 117 const Section *section = range_ptr->GetBaseAddress().GetSection(); 118 if (section) 119 { 120 const SectionType section_type = section->GetType(); 121 switch (section_type) 122 { 123 case eSectionTypeInvalid: return eAddressClassUnknown; 124 case eSectionTypeCode: return eAddressClassCode; 125 case eSectionTypeContainer: return eAddressClassUnknown; 126 case eSectionTypeData: return eAddressClassData; 127 case eSectionTypeDataCString: return eAddressClassData; 128 case eSectionTypeDataCStringPointers: return eAddressClassData; 129 case eSectionTypeDataSymbolAddress: return eAddressClassData; 130 case eSectionTypeData4: return eAddressClassData; 131 case eSectionTypeData8: return eAddressClassData; 132 case eSectionTypeData16: return eAddressClassData; 133 case eSectionTypeDataPointers: return eAddressClassData; 134 case eSectionTypeZeroFill: return eAddressClassData; 135 case eSectionTypeDataObjCMessageRefs: return eAddressClassData; 136 case eSectionTypeDataObjCCFStrings: return eAddressClassData; 137 case eSectionTypeDebug: return eAddressClassDebug; 138 case eSectionTypeDWARFDebugAbbrev: return eAddressClassDebug; 139 case eSectionTypeDWARFDebugAranges: return eAddressClassDebug; 140 case eSectionTypeDWARFDebugFrame: return eAddressClassDebug; 141 case eSectionTypeDWARFDebugInfo: return eAddressClassDebug; 142 case eSectionTypeDWARFDebugLine: return eAddressClassDebug; 143 case eSectionTypeDWARFDebugLoc: return eAddressClassDebug; 144 case eSectionTypeDWARFDebugMacInfo: return eAddressClassDebug; 145 case eSectionTypeDWARFDebugPubNames: return eAddressClassDebug; 146 case eSectionTypeDWARFDebugPubTypes: return eAddressClassDebug; 147 case eSectionTypeDWARFDebugRanges: return eAddressClassDebug; 148 case eSectionTypeDWARFDebugStr: return eAddressClassDebug; 149 case eSectionTypeEHFrame: return eAddressClassRuntime; 150 case eSectionTypeOther: return eAddressClassUnknown; 151 } 152 } 153 } 154 155 const SymbolType symbol_type = symbol->GetType(); 156 switch (symbol_type) 157 { 158 case eSymbolTypeAny: return eAddressClassUnknown; 159 case eSymbolTypeAbsolute: return eAddressClassUnknown; 160 case eSymbolTypeExtern: return eAddressClassUnknown; 161 case eSymbolTypeCode: return eAddressClassCode; 162 case eSymbolTypeTrampoline: return eAddressClassCode; 163 case eSymbolTypeData: return eAddressClassData; 164 case eSymbolTypeRuntime: return eAddressClassRuntime; 165 case eSymbolTypeException: return eAddressClassRuntime; 166 case eSymbolTypeSourceFile: return eAddressClassDebug; 167 case eSymbolTypeHeaderFile: return eAddressClassDebug; 168 case eSymbolTypeObjectFile: return eAddressClassDebug; 169 case eSymbolTypeCommonBlock: return eAddressClassDebug; 170 case eSymbolTypeBlock: return eAddressClassDebug; 171 case eSymbolTypeLocal: return eAddressClassData; 172 case eSymbolTypeParam: return eAddressClassData; 173 case eSymbolTypeVariable: return eAddressClassData; 174 case eSymbolTypeVariableType: return eAddressClassDebug; 175 case eSymbolTypeLineEntry: return eAddressClassDebug; 176 case eSymbolTypeLineHeader: return eAddressClassDebug; 177 case eSymbolTypeScopeBegin: return eAddressClassDebug; 178 case eSymbolTypeScopeEnd: return eAddressClassDebug; 179 case eSymbolTypeAdditional: return eAddressClassUnknown; 180 case eSymbolTypeCompiler: return eAddressClassDebug; 181 case eSymbolTypeInstrumentation:return eAddressClassDebug; 182 case eSymbolTypeUndefined: return eAddressClassUnknown; 183 } 184 } 185 } 186 return eAddressClassUnknown; 187 } 188 189 190