1 //===-- ObjectFilePECOFF.h --------------------------------------*- 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 #ifndef liblldb_ObjectFilePECOFF_h_ 11 #define liblldb_ObjectFilePECOFF_h_ 12 13 #include <vector> 14 15 #include "lldb/Symbol/ObjectFile.h" 16 17 class ObjectFilePECOFF : 18 public lldb_private::ObjectFile 19 { 20 public: 21 22 //------------------------------------------------------------------ 23 // Static Functions 24 //------------------------------------------------------------------ 25 static void 26 Initialize(); 27 28 static void 29 Terminate(); 30 31 static const char * 32 GetPluginNameStatic(); 33 34 static const char * 35 GetPluginDescriptionStatic(); 36 37 static ObjectFile * 38 CreateInstance (const lldb::ModuleSP &module_sp, 39 lldb::DataBufferSP& data_sp, 40 lldb::offset_t data_offset, 41 const lldb_private::FileSpec* file, 42 lldb::offset_t offset, 43 lldb::offset_t length); 44 45 static lldb_private::ObjectFile * 46 CreateMemoryInstance (const lldb::ModuleSP &module_sp, 47 lldb::DataBufferSP& data_sp, 48 const lldb::ProcessSP &process_sp, 49 lldb::addr_t header_addr); 50 static bool 51 MagicBytesMatch (lldb::DataBufferSP& data_sp); 52 53 54 ObjectFilePECOFF (const lldb::ModuleSP &module_sp, 55 lldb::DataBufferSP& data_sp, 56 lldb::offset_t data_offset, 57 const lldb_private::FileSpec* file, 58 lldb::offset_t file_offset, 59 lldb::offset_t length); 60 61 virtual 62 ~ObjectFilePECOFF(); 63 64 virtual bool 65 ParseHeader (); 66 67 virtual lldb::ByteOrder 68 GetByteOrder () const; 69 70 virtual bool 71 IsExecutable () const; 72 73 virtual uint32_t 74 GetAddressByteSize () const; 75 76 // virtual lldb_private::AddressClass 77 // GetAddressClass (lldb::addr_t file_addr); 78 // 79 virtual lldb_private::Symtab * 80 GetSymtab(); 81 82 virtual lldb_private::SectionList * 83 GetSectionList(); 84 85 virtual void 86 Dump (lldb_private::Stream *s); 87 88 virtual bool 89 GetArchitecture (lldb_private::ArchSpec &arch); 90 91 virtual bool 92 GetUUID (lldb_private::UUID* uuid); 93 94 virtual uint32_t 95 GetDependentModules (lldb_private::FileSpecList& files); 96 97 //------------------------------------------------------------------ 98 // PluginInterface protocol 99 //------------------------------------------------------------------ 100 virtual const char * 101 GetPluginName(); 102 103 virtual const char * 104 GetShortPluginName(); 105 106 virtual uint32_t 107 GetPluginVersion(); 108 // 109 // virtual lldb_private::Address 110 // GetEntryPointAddress (); 111 112 virtual ObjectFile::Type 113 CalculateType(); 114 115 virtual ObjectFile::Strata 116 CalculateStrata(); 117 118 protected: 119 bool NeedsEndianSwap() const; 120 121 typedef struct dos_header { // DOS .EXE header 122 uint16_t e_magic; // Magic number 123 uint16_t e_cblp; // Bytes on last page of file 124 uint16_t e_cp; // Pages in file 125 uint16_t e_crlc; // Relocations 126 uint16_t e_cparhdr; // Size of header in paragraphs 127 uint16_t e_minalloc; // Minimum extra paragraphs needed 128 uint16_t e_maxalloc; // Maximum extra paragraphs needed 129 uint16_t e_ss; // Initial (relative) SS value 130 uint16_t e_sp; // Initial SP value 131 uint16_t e_csum; // Checksum 132 uint16_t e_ip; // Initial IP value 133 uint16_t e_cs; // Initial (relative) CS value 134 uint16_t e_lfarlc; // File address of relocation table 135 uint16_t e_ovno; // Overlay number 136 uint16_t e_res[4]; // Reserved words 137 uint16_t e_oemid; // OEM identifier (for e_oeminfo) 138 uint16_t e_oeminfo; // OEM information; e_oemid specific 139 uint16_t e_res2[10]; // Reserved words 140 uint32_t e_lfanew; // File address of new exe header 141 } dos_header_t; 142 143 typedef struct coff_header { 144 uint16_t machine; 145 uint16_t nsects; 146 uint32_t modtime; 147 uint32_t symoff; 148 uint32_t nsyms; 149 uint16_t hdrsize; 150 uint16_t flags; 151 } coff_header_t; 152 153 typedef struct data_directory { 154 uint32_t vmaddr; 155 uint32_t vmsize; 156 } data_directory_t; 157 158 typedef struct coff_opt_header 159 { 160 uint16_t magic; 161 uint8_t major_linker_version; 162 uint8_t minor_linker_version; 163 uint32_t code_size; 164 uint32_t data_size; 165 uint32_t bss_size; 166 uint32_t entry; 167 uint32_t code_offset; 168 uint32_t data_offset; 169 170 uint64_t image_base; 171 uint32_t sect_alignment; 172 uint32_t file_alignment; 173 uint16_t major_os_system_version; 174 uint16_t minor_os_system_version; 175 uint16_t major_image_version; 176 uint16_t minor_image_version; 177 uint16_t major_subsystem_version; 178 uint16_t minor_subsystem_version; 179 uint32_t reserved1; 180 uint32_t image_size; 181 uint32_t header_size; 182 uint32_t checksum; 183 uint16_t subsystem; 184 uint16_t dll_flags; 185 uint64_t stack_reserve_size; 186 uint64_t stack_commit_size; 187 uint64_t heap_reserve_size; 188 uint64_t heap_commit_size; 189 uint32_t loader_flags; 190 // uint32_t num_data_dir_entries; 191 std::vector<data_directory> data_dirs; // will contain num_data_dir_entries entries 192 } coff_opt_header_t; 193 194 typedef struct section_header { 195 char name[8]; 196 uint32_t vmsize; // Virtual Size 197 uint32_t vmaddr; // Virtual Addr 198 uint32_t size; // File size 199 uint32_t offset; // File offset 200 uint32_t reloff; // Offset to relocations 201 uint32_t lineoff;// Offset to line table entries 202 uint16_t nreloc; // Number of relocation entries 203 uint16_t nline; // Number of line table entries 204 uint32_t flags; 205 } section_header_t; 206 207 typedef struct coff_symbol { 208 char name[8]; 209 uint32_t value; 210 uint16_t sect; 211 uint16_t type; 212 uint8_t storage; 213 uint8_t naux; 214 } coff_symbol_t; 215 216 bool ParseDOSHeader (); 217 bool ParseCOFFHeader (lldb::offset_t *offset_ptr); 218 bool ParseCOFFOptionalHeader (lldb::offset_t *offset_ptr); 219 bool ParseSectionHeaders (uint32_t offset); 220 221 static void DumpDOSHeader(lldb_private::Stream *s, const dos_header_t& header); 222 static void DumpCOFFHeader(lldb_private::Stream *s, const coff_header_t& header); 223 static void DumpOptCOFFHeader(lldb_private::Stream *s, const coff_opt_header_t& header); 224 void DumpSectionHeaders(lldb_private::Stream *s); 225 void DumpSectionHeader(lldb_private::Stream *s, const section_header_t& sh); 226 bool GetSectionName(std::string& sect_name, const section_header_t& sect); 227 228 typedef std::vector<section_header_t> SectionHeaderColl; 229 typedef SectionHeaderColl::iterator SectionHeaderCollIter; 230 typedef SectionHeaderColl::const_iterator SectionHeaderCollConstIter; 231 private: 232 mutable std::auto_ptr<lldb_private::SectionList> m_sections_ap; 233 mutable std::auto_ptr<lldb_private::Symtab> m_symtab_ap; 234 dos_header_t m_dos_header; 235 coff_header_t m_coff_header; 236 coff_opt_header_t m_coff_header_opt; 237 SectionHeaderColl m_sect_headers; 238 }; 239 240 #endif // #ifndef liblldb_ObjectFilePECOFF_h_ 241