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