ELFDumper.cpp revision 081a1941b595f6294e4ce678fd61ef56a2ceb51e
1//===-- ELFDumper.cpp - ELF-specific dumper ---------------------*- 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/// \file 11/// \brief This file implements the ELF-specific dumper for llvm-readobj. 12/// 13//===----------------------------------------------------------------------===// 14 15#include "llvm-readobj.h" 16#include "Error.h" 17#include "ObjDumper.h" 18#include "StreamWriter.h" 19 20#include "llvm/ADT/SmallString.h" 21#include "llvm/Object/ELFObjectFile.h" 22#include "llvm/Support/Compiler.h" 23#include "llvm/Support/Format.h" 24#include "llvm/Support/MathExtras.h" 25#include "llvm/Support/raw_ostream.h" 26 27using namespace llvm; 28using namespace llvm::object; 29using namespace ELF; 30 31#define LLVM_READOBJ_ENUM_CASE(ns, enum) \ 32 case ns::enum: return #enum; 33 34namespace { 35 36template<typename ELFT> 37class ELFDumper : public ObjDumper { 38public: 39 ELFDumper(const ELFFile<ELFT> *Obj, StreamWriter &Writer) 40 : ObjDumper(Writer), Obj(Obj) {} 41 42 virtual void printFileHeaders() LLVM_OVERRIDE; 43 virtual void printSections() LLVM_OVERRIDE; 44 virtual void printRelocations() LLVM_OVERRIDE; 45 virtual void printSymbols() LLVM_OVERRIDE; 46 virtual void printDynamicSymbols() LLVM_OVERRIDE; 47 virtual void printUnwindInfo() LLVM_OVERRIDE; 48 49 virtual void printDynamicTable() LLVM_OVERRIDE; 50 virtual void printNeededLibraries() LLVM_OVERRIDE; 51 virtual void printProgramHeaders() LLVM_OVERRIDE; 52 53private: 54 typedef ELFFile<ELFT> ELFO; 55 typedef typename ELFO::Elf_Shdr Elf_Shdr; 56 typedef typename ELFO::Elf_Sym Elf_Sym; 57 58 void printSymbol(typename ELFO::Elf_Sym_Iter Symbol); 59 60 void printRelocations(const Elf_Shdr *Sec); 61 void printRelocation(const Elf_Shdr *Sec, typename ELFO::Elf_Rela Rel); 62 63 const ELFO *Obj; 64}; 65 66template <class T> T errorOrDefault(ErrorOr<T> Val, T Default = T()) { 67 if (!Val) { 68 error(Val); 69 return Default; 70 } 71 72 return *Val; 73} 74} // namespace 75 76namespace llvm { 77 78template <class ELFT> 79static error_code createELFDumper(const ELFFile<ELFT> *Obj, 80 StreamWriter &Writer, 81 OwningPtr<ObjDumper> &Result) { 82 Result.reset(new ELFDumper<ELFT>(Obj, Writer)); 83 return readobj_error::success; 84} 85 86error_code createELFDumper(const object::ObjectFile *Obj, 87 StreamWriter& Writer, 88 OwningPtr<ObjDumper> &Result) { 89 // Little-endian 32-bit 90 if (const ELF32LEObjectFile *ELFObj = dyn_cast<ELF32LEObjectFile>(Obj)) 91 return createELFDumper(ELFObj->getELFFile(), Writer, Result); 92 93 // Big-endian 32-bit 94 if (const ELF32BEObjectFile *ELFObj = dyn_cast<ELF32BEObjectFile>(Obj)) 95 return createELFDumper(ELFObj->getELFFile(), Writer, Result); 96 97 // Little-endian 64-bit 98 if (const ELF64LEObjectFile *ELFObj = dyn_cast<ELF64LEObjectFile>(Obj)) 99 return createELFDumper(ELFObj->getELFFile(), Writer, Result); 100 101 // Big-endian 64-bit 102 if (const ELF64BEObjectFile *ELFObj = dyn_cast<ELF64BEObjectFile>(Obj)) 103 return createELFDumper(ELFObj->getELFFile(), Writer, Result); 104 105 return readobj_error::unsupported_obj_file_format; 106} 107 108} // namespace llvm 109 110static const EnumEntry<unsigned> ElfClass[] = { 111 { "None", ELF::ELFCLASSNONE }, 112 { "32-bit", ELF::ELFCLASS32 }, 113 { "64-bit", ELF::ELFCLASS64 }, 114}; 115 116static const EnumEntry<unsigned> ElfDataEncoding[] = { 117 { "None", ELF::ELFDATANONE }, 118 { "LittleEndian", ELF::ELFDATA2LSB }, 119 { "BigEndian", ELF::ELFDATA2MSB }, 120}; 121 122static const EnumEntry<unsigned> ElfObjectFileType[] = { 123 { "None", ELF::ET_NONE }, 124 { "Relocatable", ELF::ET_REL }, 125 { "Executable", ELF::ET_EXEC }, 126 { "SharedObject", ELF::ET_DYN }, 127 { "Core", ELF::ET_CORE }, 128}; 129 130static const EnumEntry<unsigned> ElfOSABI[] = { 131 { "SystemV", ELF::ELFOSABI_NONE }, 132 { "HPUX", ELF::ELFOSABI_HPUX }, 133 { "NetBSD", ELF::ELFOSABI_NETBSD }, 134 { "GNU/Linux", ELF::ELFOSABI_LINUX }, 135 { "GNU/Hurd", ELF::ELFOSABI_HURD }, 136 { "Solaris", ELF::ELFOSABI_SOLARIS }, 137 { "AIX", ELF::ELFOSABI_AIX }, 138 { "IRIX", ELF::ELFOSABI_IRIX }, 139 { "FreeBSD", ELF::ELFOSABI_FREEBSD }, 140 { "TRU64", ELF::ELFOSABI_TRU64 }, 141 { "Modesto", ELF::ELFOSABI_MODESTO }, 142 { "OpenBSD", ELF::ELFOSABI_OPENBSD }, 143 { "OpenVMS", ELF::ELFOSABI_OPENVMS }, 144 { "NSK", ELF::ELFOSABI_NSK }, 145 { "AROS", ELF::ELFOSABI_AROS }, 146 { "FenixOS", ELF::ELFOSABI_FENIXOS }, 147 { "C6000_ELFABI", ELF::ELFOSABI_C6000_ELFABI }, 148 { "C6000_LINUX" , ELF::ELFOSABI_C6000_LINUX }, 149 { "ARM", ELF::ELFOSABI_ARM }, 150 { "Standalone" , ELF::ELFOSABI_STANDALONE } 151}; 152 153static const EnumEntry<unsigned> ElfMachineType[] = { 154 LLVM_READOBJ_ENUM_ENT(ELF, EM_NONE ), 155 LLVM_READOBJ_ENUM_ENT(ELF, EM_M32 ), 156 LLVM_READOBJ_ENUM_ENT(ELF, EM_SPARC ), 157 LLVM_READOBJ_ENUM_ENT(ELF, EM_386 ), 158 LLVM_READOBJ_ENUM_ENT(ELF, EM_68K ), 159 LLVM_READOBJ_ENUM_ENT(ELF, EM_88K ), 160 LLVM_READOBJ_ENUM_ENT(ELF, EM_486 ), 161 LLVM_READOBJ_ENUM_ENT(ELF, EM_860 ), 162 LLVM_READOBJ_ENUM_ENT(ELF, EM_MIPS ), 163 LLVM_READOBJ_ENUM_ENT(ELF, EM_S370 ), 164 LLVM_READOBJ_ENUM_ENT(ELF, EM_MIPS_RS3_LE ), 165 LLVM_READOBJ_ENUM_ENT(ELF, EM_PARISC ), 166 LLVM_READOBJ_ENUM_ENT(ELF, EM_VPP500 ), 167 LLVM_READOBJ_ENUM_ENT(ELF, EM_SPARC32PLUS ), 168 LLVM_READOBJ_ENUM_ENT(ELF, EM_960 ), 169 LLVM_READOBJ_ENUM_ENT(ELF, EM_PPC ), 170 LLVM_READOBJ_ENUM_ENT(ELF, EM_PPC64 ), 171 LLVM_READOBJ_ENUM_ENT(ELF, EM_S390 ), 172 LLVM_READOBJ_ENUM_ENT(ELF, EM_SPU ), 173 LLVM_READOBJ_ENUM_ENT(ELF, EM_V800 ), 174 LLVM_READOBJ_ENUM_ENT(ELF, EM_FR20 ), 175 LLVM_READOBJ_ENUM_ENT(ELF, EM_RH32 ), 176 LLVM_READOBJ_ENUM_ENT(ELF, EM_RCE ), 177 LLVM_READOBJ_ENUM_ENT(ELF, EM_ARM ), 178 LLVM_READOBJ_ENUM_ENT(ELF, EM_ALPHA ), 179 LLVM_READOBJ_ENUM_ENT(ELF, EM_SH ), 180 LLVM_READOBJ_ENUM_ENT(ELF, EM_SPARCV9 ), 181 LLVM_READOBJ_ENUM_ENT(ELF, EM_TRICORE ), 182 LLVM_READOBJ_ENUM_ENT(ELF, EM_ARC ), 183 LLVM_READOBJ_ENUM_ENT(ELF, EM_H8_300 ), 184 LLVM_READOBJ_ENUM_ENT(ELF, EM_H8_300H ), 185 LLVM_READOBJ_ENUM_ENT(ELF, EM_H8S ), 186 LLVM_READOBJ_ENUM_ENT(ELF, EM_H8_500 ), 187 LLVM_READOBJ_ENUM_ENT(ELF, EM_IA_64 ), 188 LLVM_READOBJ_ENUM_ENT(ELF, EM_MIPS_X ), 189 LLVM_READOBJ_ENUM_ENT(ELF, EM_COLDFIRE ), 190 LLVM_READOBJ_ENUM_ENT(ELF, EM_68HC12 ), 191 LLVM_READOBJ_ENUM_ENT(ELF, EM_MMA ), 192 LLVM_READOBJ_ENUM_ENT(ELF, EM_PCP ), 193 LLVM_READOBJ_ENUM_ENT(ELF, EM_NCPU ), 194 LLVM_READOBJ_ENUM_ENT(ELF, EM_NDR1 ), 195 LLVM_READOBJ_ENUM_ENT(ELF, EM_STARCORE ), 196 LLVM_READOBJ_ENUM_ENT(ELF, EM_ME16 ), 197 LLVM_READOBJ_ENUM_ENT(ELF, EM_ST100 ), 198 LLVM_READOBJ_ENUM_ENT(ELF, EM_TINYJ ), 199 LLVM_READOBJ_ENUM_ENT(ELF, EM_X86_64 ), 200 LLVM_READOBJ_ENUM_ENT(ELF, EM_PDSP ), 201 LLVM_READOBJ_ENUM_ENT(ELF, EM_PDP10 ), 202 LLVM_READOBJ_ENUM_ENT(ELF, EM_PDP11 ), 203 LLVM_READOBJ_ENUM_ENT(ELF, EM_FX66 ), 204 LLVM_READOBJ_ENUM_ENT(ELF, EM_ST9PLUS ), 205 LLVM_READOBJ_ENUM_ENT(ELF, EM_ST7 ), 206 LLVM_READOBJ_ENUM_ENT(ELF, EM_68HC16 ), 207 LLVM_READOBJ_ENUM_ENT(ELF, EM_68HC11 ), 208 LLVM_READOBJ_ENUM_ENT(ELF, EM_68HC08 ), 209 LLVM_READOBJ_ENUM_ENT(ELF, EM_68HC05 ), 210 LLVM_READOBJ_ENUM_ENT(ELF, EM_SVX ), 211 LLVM_READOBJ_ENUM_ENT(ELF, EM_ST19 ), 212 LLVM_READOBJ_ENUM_ENT(ELF, EM_VAX ), 213 LLVM_READOBJ_ENUM_ENT(ELF, EM_CRIS ), 214 LLVM_READOBJ_ENUM_ENT(ELF, EM_JAVELIN ), 215 LLVM_READOBJ_ENUM_ENT(ELF, EM_FIREPATH ), 216 LLVM_READOBJ_ENUM_ENT(ELF, EM_ZSP ), 217 LLVM_READOBJ_ENUM_ENT(ELF, EM_MMIX ), 218 LLVM_READOBJ_ENUM_ENT(ELF, EM_HUANY ), 219 LLVM_READOBJ_ENUM_ENT(ELF, EM_PRISM ), 220 LLVM_READOBJ_ENUM_ENT(ELF, EM_AVR ), 221 LLVM_READOBJ_ENUM_ENT(ELF, EM_FR30 ), 222 LLVM_READOBJ_ENUM_ENT(ELF, EM_D10V ), 223 LLVM_READOBJ_ENUM_ENT(ELF, EM_D30V ), 224 LLVM_READOBJ_ENUM_ENT(ELF, EM_V850 ), 225 LLVM_READOBJ_ENUM_ENT(ELF, EM_M32R ), 226 LLVM_READOBJ_ENUM_ENT(ELF, EM_MN10300 ), 227 LLVM_READOBJ_ENUM_ENT(ELF, EM_MN10200 ), 228 LLVM_READOBJ_ENUM_ENT(ELF, EM_PJ ), 229 LLVM_READOBJ_ENUM_ENT(ELF, EM_OPENRISC ), 230 LLVM_READOBJ_ENUM_ENT(ELF, EM_ARC_COMPACT ), 231 LLVM_READOBJ_ENUM_ENT(ELF, EM_XTENSA ), 232 LLVM_READOBJ_ENUM_ENT(ELF, EM_VIDEOCORE ), 233 LLVM_READOBJ_ENUM_ENT(ELF, EM_TMM_GPP ), 234 LLVM_READOBJ_ENUM_ENT(ELF, EM_NS32K ), 235 LLVM_READOBJ_ENUM_ENT(ELF, EM_TPC ), 236 LLVM_READOBJ_ENUM_ENT(ELF, EM_SNP1K ), 237 LLVM_READOBJ_ENUM_ENT(ELF, EM_ST200 ), 238 LLVM_READOBJ_ENUM_ENT(ELF, EM_IP2K ), 239 LLVM_READOBJ_ENUM_ENT(ELF, EM_MAX ), 240 LLVM_READOBJ_ENUM_ENT(ELF, EM_CR ), 241 LLVM_READOBJ_ENUM_ENT(ELF, EM_F2MC16 ), 242 LLVM_READOBJ_ENUM_ENT(ELF, EM_MSP430 ), 243 LLVM_READOBJ_ENUM_ENT(ELF, EM_BLACKFIN ), 244 LLVM_READOBJ_ENUM_ENT(ELF, EM_SE_C33 ), 245 LLVM_READOBJ_ENUM_ENT(ELF, EM_SEP ), 246 LLVM_READOBJ_ENUM_ENT(ELF, EM_ARCA ), 247 LLVM_READOBJ_ENUM_ENT(ELF, EM_UNICORE ), 248 LLVM_READOBJ_ENUM_ENT(ELF, EM_EXCESS ), 249 LLVM_READOBJ_ENUM_ENT(ELF, EM_DXP ), 250 LLVM_READOBJ_ENUM_ENT(ELF, EM_ALTERA_NIOS2 ), 251 LLVM_READOBJ_ENUM_ENT(ELF, EM_CRX ), 252 LLVM_READOBJ_ENUM_ENT(ELF, EM_XGATE ), 253 LLVM_READOBJ_ENUM_ENT(ELF, EM_C166 ), 254 LLVM_READOBJ_ENUM_ENT(ELF, EM_M16C ), 255 LLVM_READOBJ_ENUM_ENT(ELF, EM_DSPIC30F ), 256 LLVM_READOBJ_ENUM_ENT(ELF, EM_CE ), 257 LLVM_READOBJ_ENUM_ENT(ELF, EM_M32C ), 258 LLVM_READOBJ_ENUM_ENT(ELF, EM_TSK3000 ), 259 LLVM_READOBJ_ENUM_ENT(ELF, EM_RS08 ), 260 LLVM_READOBJ_ENUM_ENT(ELF, EM_SHARC ), 261 LLVM_READOBJ_ENUM_ENT(ELF, EM_ECOG2 ), 262 LLVM_READOBJ_ENUM_ENT(ELF, EM_SCORE7 ), 263 LLVM_READOBJ_ENUM_ENT(ELF, EM_DSP24 ), 264 LLVM_READOBJ_ENUM_ENT(ELF, EM_VIDEOCORE3 ), 265 LLVM_READOBJ_ENUM_ENT(ELF, EM_LATTICEMICO32), 266 LLVM_READOBJ_ENUM_ENT(ELF, EM_SE_C17 ), 267 LLVM_READOBJ_ENUM_ENT(ELF, EM_TI_C6000 ), 268 LLVM_READOBJ_ENUM_ENT(ELF, EM_TI_C2000 ), 269 LLVM_READOBJ_ENUM_ENT(ELF, EM_TI_C5500 ), 270 LLVM_READOBJ_ENUM_ENT(ELF, EM_MMDSP_PLUS ), 271 LLVM_READOBJ_ENUM_ENT(ELF, EM_CYPRESS_M8C ), 272 LLVM_READOBJ_ENUM_ENT(ELF, EM_R32C ), 273 LLVM_READOBJ_ENUM_ENT(ELF, EM_TRIMEDIA ), 274 LLVM_READOBJ_ENUM_ENT(ELF, EM_HEXAGON ), 275 LLVM_READOBJ_ENUM_ENT(ELF, EM_8051 ), 276 LLVM_READOBJ_ENUM_ENT(ELF, EM_STXP7X ), 277 LLVM_READOBJ_ENUM_ENT(ELF, EM_NDS32 ), 278 LLVM_READOBJ_ENUM_ENT(ELF, EM_ECOG1 ), 279 LLVM_READOBJ_ENUM_ENT(ELF, EM_ECOG1X ), 280 LLVM_READOBJ_ENUM_ENT(ELF, EM_MAXQ30 ), 281 LLVM_READOBJ_ENUM_ENT(ELF, EM_XIMO16 ), 282 LLVM_READOBJ_ENUM_ENT(ELF, EM_MANIK ), 283 LLVM_READOBJ_ENUM_ENT(ELF, EM_CRAYNV2 ), 284 LLVM_READOBJ_ENUM_ENT(ELF, EM_RX ), 285 LLVM_READOBJ_ENUM_ENT(ELF, EM_METAG ), 286 LLVM_READOBJ_ENUM_ENT(ELF, EM_MCST_ELBRUS ), 287 LLVM_READOBJ_ENUM_ENT(ELF, EM_ECOG16 ), 288 LLVM_READOBJ_ENUM_ENT(ELF, EM_CR16 ), 289 LLVM_READOBJ_ENUM_ENT(ELF, EM_ETPU ), 290 LLVM_READOBJ_ENUM_ENT(ELF, EM_SLE9X ), 291 LLVM_READOBJ_ENUM_ENT(ELF, EM_L10M ), 292 LLVM_READOBJ_ENUM_ENT(ELF, EM_K10M ), 293 LLVM_READOBJ_ENUM_ENT(ELF, EM_AARCH64 ), 294 LLVM_READOBJ_ENUM_ENT(ELF, EM_AVR32 ), 295 LLVM_READOBJ_ENUM_ENT(ELF, EM_STM8 ), 296 LLVM_READOBJ_ENUM_ENT(ELF, EM_TILE64 ), 297 LLVM_READOBJ_ENUM_ENT(ELF, EM_TILEPRO ), 298 LLVM_READOBJ_ENUM_ENT(ELF, EM_CUDA ), 299 LLVM_READOBJ_ENUM_ENT(ELF, EM_TILEGX ), 300 LLVM_READOBJ_ENUM_ENT(ELF, EM_CLOUDSHIELD ), 301 LLVM_READOBJ_ENUM_ENT(ELF, EM_COREA_1ST ), 302 LLVM_READOBJ_ENUM_ENT(ELF, EM_COREA_2ND ), 303 LLVM_READOBJ_ENUM_ENT(ELF, EM_ARC_COMPACT2 ), 304 LLVM_READOBJ_ENUM_ENT(ELF, EM_OPEN8 ), 305 LLVM_READOBJ_ENUM_ENT(ELF, EM_RL78 ), 306 LLVM_READOBJ_ENUM_ENT(ELF, EM_VIDEOCORE5 ), 307 LLVM_READOBJ_ENUM_ENT(ELF, EM_78KOR ), 308 LLVM_READOBJ_ENUM_ENT(ELF, EM_56800EX ) 309}; 310 311static const EnumEntry<unsigned> ElfSymbolBindings[] = { 312 { "Local", ELF::STB_LOCAL }, 313 { "Global", ELF::STB_GLOBAL }, 314 { "Weak", ELF::STB_WEAK } 315}; 316 317static const EnumEntry<unsigned> ElfSymbolTypes[] = { 318 { "None", ELF::STT_NOTYPE }, 319 { "Object", ELF::STT_OBJECT }, 320 { "Function", ELF::STT_FUNC }, 321 { "Section", ELF::STT_SECTION }, 322 { "File", ELF::STT_FILE }, 323 { "Common", ELF::STT_COMMON }, 324 { "TLS", ELF::STT_TLS }, 325 { "GNU_IFunc", ELF::STT_GNU_IFUNC } 326}; 327 328static const char *getElfSectionType(unsigned Arch, unsigned Type) { 329 switch (Arch) { 330 case ELF::EM_ARM: 331 switch (Type) { 332 LLVM_READOBJ_ENUM_CASE(ELF, SHT_ARM_EXIDX); 333 LLVM_READOBJ_ENUM_CASE(ELF, SHT_ARM_PREEMPTMAP); 334 LLVM_READOBJ_ENUM_CASE(ELF, SHT_ARM_ATTRIBUTES); 335 LLVM_READOBJ_ENUM_CASE(ELF, SHT_ARM_DEBUGOVERLAY); 336 LLVM_READOBJ_ENUM_CASE(ELF, SHT_ARM_OVERLAYSECTION); 337 } 338 case ELF::EM_HEXAGON: 339 switch (Type) { LLVM_READOBJ_ENUM_CASE(ELF, SHT_HEX_ORDERED); } 340 case ELF::EM_X86_64: 341 switch (Type) { LLVM_READOBJ_ENUM_CASE(ELF, SHT_X86_64_UNWIND); } 342 case ELF::EM_MIPS: 343 case ELF::EM_MIPS_RS3_LE: 344 switch (Type) { 345 LLVM_READOBJ_ENUM_CASE(ELF, SHT_MIPS_REGINFO); 346 LLVM_READOBJ_ENUM_CASE(ELF, SHT_MIPS_OPTIONS); 347 } 348 } 349 350 switch (Type) { 351 LLVM_READOBJ_ENUM_CASE(ELF, SHT_NULL ); 352 LLVM_READOBJ_ENUM_CASE(ELF, SHT_PROGBITS ); 353 LLVM_READOBJ_ENUM_CASE(ELF, SHT_SYMTAB ); 354 LLVM_READOBJ_ENUM_CASE(ELF, SHT_STRTAB ); 355 LLVM_READOBJ_ENUM_CASE(ELF, SHT_RELA ); 356 LLVM_READOBJ_ENUM_CASE(ELF, SHT_HASH ); 357 LLVM_READOBJ_ENUM_CASE(ELF, SHT_DYNAMIC ); 358 LLVM_READOBJ_ENUM_CASE(ELF, SHT_NOTE ); 359 LLVM_READOBJ_ENUM_CASE(ELF, SHT_NOBITS ); 360 LLVM_READOBJ_ENUM_CASE(ELF, SHT_REL ); 361 LLVM_READOBJ_ENUM_CASE(ELF, SHT_SHLIB ); 362 LLVM_READOBJ_ENUM_CASE(ELF, SHT_DYNSYM ); 363 LLVM_READOBJ_ENUM_CASE(ELF, SHT_INIT_ARRAY ); 364 LLVM_READOBJ_ENUM_CASE(ELF, SHT_FINI_ARRAY ); 365 LLVM_READOBJ_ENUM_CASE(ELF, SHT_PREINIT_ARRAY ); 366 LLVM_READOBJ_ENUM_CASE(ELF, SHT_GROUP ); 367 LLVM_READOBJ_ENUM_CASE(ELF, SHT_SYMTAB_SHNDX ); 368 LLVM_READOBJ_ENUM_CASE(ELF, SHT_GNU_ATTRIBUTES ); 369 LLVM_READOBJ_ENUM_CASE(ELF, SHT_GNU_HASH ); 370 LLVM_READOBJ_ENUM_CASE(ELF, SHT_GNU_verdef ); 371 LLVM_READOBJ_ENUM_CASE(ELF, SHT_GNU_verneed ); 372 LLVM_READOBJ_ENUM_CASE(ELF, SHT_GNU_versym ); 373 default: return ""; 374 } 375} 376 377static const EnumEntry<unsigned> ElfSectionFlags[] = { 378 LLVM_READOBJ_ENUM_ENT(ELF, SHF_WRITE ), 379 LLVM_READOBJ_ENUM_ENT(ELF, SHF_ALLOC ), 380 LLVM_READOBJ_ENUM_ENT(ELF, SHF_EXECINSTR ), 381 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MERGE ), 382 LLVM_READOBJ_ENUM_ENT(ELF, SHF_STRINGS ), 383 LLVM_READOBJ_ENUM_ENT(ELF, SHF_INFO_LINK ), 384 LLVM_READOBJ_ENUM_ENT(ELF, SHF_LINK_ORDER ), 385 LLVM_READOBJ_ENUM_ENT(ELF, SHF_OS_NONCONFORMING), 386 LLVM_READOBJ_ENUM_ENT(ELF, SHF_GROUP ), 387 LLVM_READOBJ_ENUM_ENT(ELF, SHF_TLS ), 388 LLVM_READOBJ_ENUM_ENT(ELF, XCORE_SHF_CP_SECTION), 389 LLVM_READOBJ_ENUM_ENT(ELF, XCORE_SHF_DP_SECTION), 390 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_NOSTRIP ) 391}; 392 393static const EnumEntry<unsigned> ElfSegmentTypes[] = { 394 LLVM_READOBJ_ENUM_ENT(ELF, PT_NULL ), 395 LLVM_READOBJ_ENUM_ENT(ELF, PT_LOAD ), 396 LLVM_READOBJ_ENUM_ENT(ELF, PT_DYNAMIC), 397 LLVM_READOBJ_ENUM_ENT(ELF, PT_INTERP ), 398 LLVM_READOBJ_ENUM_ENT(ELF, PT_NOTE ), 399 LLVM_READOBJ_ENUM_ENT(ELF, PT_SHLIB ), 400 LLVM_READOBJ_ENUM_ENT(ELF, PT_PHDR ), 401 LLVM_READOBJ_ENUM_ENT(ELF, PT_TLS ), 402 403 LLVM_READOBJ_ENUM_ENT(ELF, PT_GNU_EH_FRAME), 404 LLVM_READOBJ_ENUM_ENT(ELF, PT_SUNW_EH_FRAME), 405 LLVM_READOBJ_ENUM_ENT(ELF, PT_SUNW_UNWIND), 406 407 LLVM_READOBJ_ENUM_ENT(ELF, PT_GNU_STACK), 408 LLVM_READOBJ_ENUM_ENT(ELF, PT_GNU_RELRO), 409 410 LLVM_READOBJ_ENUM_ENT(ELF, PT_ARM_EXIDX), 411 LLVM_READOBJ_ENUM_ENT(ELF, PT_ARM_UNWIND) 412}; 413 414static const EnumEntry<unsigned> ElfSegmentFlags[] = { 415 LLVM_READOBJ_ENUM_ENT(ELF, PF_X), 416 LLVM_READOBJ_ENUM_ENT(ELF, PF_W), 417 LLVM_READOBJ_ENUM_ENT(ELF, PF_R) 418}; 419 420template<class ELFT> 421void ELFDumper<ELFT>::printFileHeaders() { 422 error_code EC; 423 424 const typename ELFO::Elf_Ehdr *Header = Obj->getHeader(); 425 426 { 427 DictScope D(W, "ElfHeader"); 428 { 429 DictScope D(W, "Ident"); 430 W.printBinary("Magic", makeArrayRef(Header->e_ident).slice(ELF::EI_MAG0, 431 4)); 432 W.printEnum ("Class", Header->e_ident[ELF::EI_CLASS], 433 makeArrayRef(ElfClass)); 434 W.printEnum ("DataEncoding", Header->e_ident[ELF::EI_DATA], 435 makeArrayRef(ElfDataEncoding)); 436 W.printNumber("FileVersion", Header->e_ident[ELF::EI_VERSION]); 437 W.printEnum ("OS/ABI", Header->e_ident[ELF::EI_OSABI], 438 makeArrayRef(ElfOSABI)); 439 W.printNumber("ABIVersion", Header->e_ident[ELF::EI_ABIVERSION]); 440 W.printBinary("Unused", makeArrayRef(Header->e_ident).slice(ELF::EI_PAD)); 441 } 442 443 W.printEnum ("Type", Header->e_type, makeArrayRef(ElfObjectFileType)); 444 W.printEnum ("Machine", Header->e_machine, makeArrayRef(ElfMachineType)); 445 W.printNumber("Version", Header->e_version); 446 W.printHex ("Entry", Header->e_entry); 447 W.printHex ("ProgramHeaderOffset", Header->e_phoff); 448 W.printHex ("SectionHeaderOffset", Header->e_shoff); 449 W.printFlags ("Flags", Header->e_flags); 450 W.printNumber("HeaderSize", Header->e_ehsize); 451 W.printNumber("ProgramHeaderEntrySize", Header->e_phentsize); 452 W.printNumber("ProgramHeaderCount", Header->e_phnum); 453 W.printNumber("SectionHeaderEntrySize", Header->e_shentsize); 454 W.printNumber("SectionHeaderCount", Header->e_shnum); 455 W.printNumber("StringTableSectionIndex", Header->e_shstrndx); 456 } 457} 458 459template<class ELFT> 460void ELFDumper<ELFT>::printSections() { 461 ListScope SectionsD(W, "Sections"); 462 463 int SectionIndex = -1; 464 for (typename ELFO::Elf_Shdr_Iter SecI = Obj->begin_sections(), 465 SecE = Obj->end_sections(); 466 SecI != SecE; ++SecI) { 467 ++SectionIndex; 468 469 const Elf_Shdr *Section = &*SecI; 470 StringRef Name = errorOrDefault(Obj->getSectionName(Section)); 471 472 DictScope SectionD(W, "Section"); 473 W.printNumber("Index", SectionIndex); 474 W.printNumber("Name", Name, Section->sh_name); 475 W.printHex("Type", 476 getElfSectionType(Obj->getHeader()->e_machine, Section->sh_type), 477 Section->sh_type); 478 W.printFlags ("Flags", Section->sh_flags, makeArrayRef(ElfSectionFlags)); 479 W.printHex ("Address", Section->sh_addr); 480 W.printHex ("Offset", Section->sh_offset); 481 W.printNumber("Size", Section->sh_size); 482 W.printNumber("Link", Section->sh_link); 483 W.printNumber("Info", Section->sh_info); 484 W.printNumber("AddressAlignment", Section->sh_addralign); 485 W.printNumber("EntrySize", Section->sh_entsize); 486 487 if (opts::SectionRelocations) { 488 ListScope D(W, "Relocations"); 489 printRelocations(Section); 490 } 491 492 if (opts::SectionSymbols) { 493 ListScope D(W, "Symbols"); 494 for (typename ELFO::Elf_Sym_Iter SymI = Obj->begin_symbols(), 495 SymE = Obj->end_symbols(); 496 SymI != SymE; ++SymI) { 497 if (Obj->getSection(&*SymI) == Section) 498 printSymbol(SymI); 499 } 500 } 501 502 if (opts::SectionData) { 503 ArrayRef<uint8_t> Data = errorOrDefault(Obj->getSectionContents(Section)); 504 W.printBinaryBlock("SectionData", 505 StringRef((const char *)Data.data(), Data.size())); 506 } 507 } 508} 509 510template<class ELFT> 511void ELFDumper<ELFT>::printRelocations() { 512 ListScope D(W, "Relocations"); 513 514 error_code EC; 515 int SectionNumber = -1; 516 for (typename ELFO::Elf_Shdr_Iter SecI = Obj->begin_sections(), 517 SecE = Obj->end_sections(); 518 SecI != SecE; ++SecI) { 519 ++SectionNumber; 520 521 if (SecI->sh_type != ELF::SHT_REL && SecI->sh_type != ELF::SHT_RELA) 522 continue; 523 524 StringRef Name = errorOrDefault(Obj->getSectionName(&*SecI)); 525 526 W.startLine() << "Section (" << SectionNumber << ") " << Name << " {\n"; 527 W.indent(); 528 529 printRelocations(&*SecI); 530 531 W.unindent(); 532 W.startLine() << "}\n"; 533 } 534} 535 536template <class ELFT> 537void ELFDumper<ELFT>::printRelocations(const Elf_Shdr *Sec) { 538 switch (Sec->sh_type) { 539 case ELF::SHT_REL: 540 for (typename ELFO::Elf_Rel_Iter RI = Obj->begin_rel(Sec), 541 RE = Obj->end_rel(Sec); 542 RI != RE; ++RI) { 543 typename ELFO::Elf_Rela Rela; 544 Rela.r_offset = RI->r_offset; 545 Rela.r_info = RI->r_info; 546 Rela.r_addend = 0; 547 printRelocation(Sec, Rela); 548 } 549 break; 550 case ELF::SHT_RELA: 551 for (typename ELFO::Elf_Rela_Iter RI = Obj->begin_rela(Sec), 552 RE = Obj->end_rela(Sec); 553 RI != RE; ++RI) { 554 printRelocation(Sec, *RI); 555 } 556 break; 557 } 558} 559 560template <class ELFT> 561void ELFDumper<ELFT>::printRelocation(const Elf_Shdr *Sec, 562 typename ELFO::Elf_Rela Rel) { 563 SmallString<32> RelocName; 564 Obj->getRelocationTypeName(Rel.getType(Obj->isMips64EL()), RelocName); 565 StringRef SymbolName; 566 std::pair<const Elf_Shdr *, const Elf_Sym *> Sym = 567 Obj->getRelocationSymbol(Sec, &Rel); 568 if (Sym.first) 569 SymbolName = errorOrDefault(Obj->getSymbolName(Sym.first, Sym.second)); 570 571 if (opts::ExpandRelocs) { 572 DictScope Group(W, "Relocation"); 573 W.printHex("Offset", Rel.r_offset); 574 W.printNumber("Type", RelocName, (int)Rel.getType(Obj->isMips64EL())); 575 W.printString("Symbol", SymbolName.size() > 0 ? SymbolName : "-"); 576 W.printHex("Addend", Rel.r_addend); 577 } else { 578 raw_ostream& OS = W.startLine(); 579 OS << W.hex(Rel.r_offset) 580 << " " << RelocName 581 << " " << (SymbolName.size() > 0 ? SymbolName : "-") 582 << " " << W.hex(Rel.r_addend) 583 << "\n"; 584 } 585} 586 587template<class ELFT> 588void ELFDumper<ELFT>::printSymbols() { 589 ListScope Group(W, "Symbols"); 590 for (typename ELFO::Elf_Sym_Iter SymI = Obj->begin_symbols(), 591 SymE = Obj->end_symbols(); 592 SymI != SymE; ++SymI) { 593 printSymbol(SymI); 594 } 595} 596 597template<class ELFT> 598void ELFDumper<ELFT>::printDynamicSymbols() { 599 ListScope Group(W, "DynamicSymbols"); 600 601 for (typename ELFO::Elf_Sym_Iter SymI = Obj->begin_dynamic_symbols(), 602 SymE = Obj->end_dynamic_symbols(); 603 SymI != SymE; ++SymI) { 604 printSymbol(SymI); 605 } 606} 607 608template <class ELFT> 609void ELFDumper<ELFT>::printSymbol(typename ELFO::Elf_Sym_Iter Symbol) { 610 StringRef SymbolName = errorOrDefault(Obj->getSymbolName(Symbol)); 611 const Elf_Shdr *Sec = Obj->getSection(&*Symbol); 612 StringRef SectionName = Sec ? errorOrDefault(Obj->getSectionName(Sec)) : ""; 613 std::string FullSymbolName(SymbolName); 614 if (Symbol.isDynamic()) { 615 bool IsDefault; 616 ErrorOr<StringRef> Version = Obj->getSymbolVersion(0, &*Symbol, IsDefault); 617 if (Version) { 618 FullSymbolName += (IsDefault ? "@@" : "@"); 619 FullSymbolName += *Version; 620 } else 621 error(Version); 622 } 623 624 DictScope D(W, "Symbol"); 625 W.printNumber("Name", FullSymbolName, Symbol->st_name); 626 W.printHex ("Value", Symbol->st_value); 627 W.printNumber("Size", Symbol->st_size); 628 W.printEnum ("Binding", Symbol->getBinding(), 629 makeArrayRef(ElfSymbolBindings)); 630 W.printEnum ("Type", Symbol->getType(), makeArrayRef(ElfSymbolTypes)); 631 W.printNumber("Other", Symbol->st_other); 632 W.printHex ("Section", SectionName, Symbol->st_shndx); 633} 634 635#define LLVM_READOBJ_TYPE_CASE(name) \ 636 case DT_##name: return #name 637 638static const char *getTypeString(uint64_t Type) { 639 switch (Type) { 640 LLVM_READOBJ_TYPE_CASE(BIND_NOW); 641 LLVM_READOBJ_TYPE_CASE(DEBUG); 642 LLVM_READOBJ_TYPE_CASE(FINI); 643 LLVM_READOBJ_TYPE_CASE(FINI_ARRAY); 644 LLVM_READOBJ_TYPE_CASE(FINI_ARRAYSZ); 645 LLVM_READOBJ_TYPE_CASE(FLAGS); 646 LLVM_READOBJ_TYPE_CASE(HASH); 647 LLVM_READOBJ_TYPE_CASE(INIT); 648 LLVM_READOBJ_TYPE_CASE(INIT_ARRAY); 649 LLVM_READOBJ_TYPE_CASE(INIT_ARRAYSZ); 650 LLVM_READOBJ_TYPE_CASE(PREINIT_ARRAY); 651 LLVM_READOBJ_TYPE_CASE(PREINIT_ARRAYSZ); 652 LLVM_READOBJ_TYPE_CASE(JMPREL); 653 LLVM_READOBJ_TYPE_CASE(NEEDED); 654 LLVM_READOBJ_TYPE_CASE(NULL); 655 LLVM_READOBJ_TYPE_CASE(PLTGOT); 656 LLVM_READOBJ_TYPE_CASE(PLTREL); 657 LLVM_READOBJ_TYPE_CASE(PLTRELSZ); 658 LLVM_READOBJ_TYPE_CASE(REL); 659 LLVM_READOBJ_TYPE_CASE(RELA); 660 LLVM_READOBJ_TYPE_CASE(RELENT); 661 LLVM_READOBJ_TYPE_CASE(RELSZ); 662 LLVM_READOBJ_TYPE_CASE(RELAENT); 663 LLVM_READOBJ_TYPE_CASE(RELASZ); 664 LLVM_READOBJ_TYPE_CASE(RPATH); 665 LLVM_READOBJ_TYPE_CASE(RUNPATH); 666 LLVM_READOBJ_TYPE_CASE(SONAME); 667 LLVM_READOBJ_TYPE_CASE(STRSZ); 668 LLVM_READOBJ_TYPE_CASE(STRTAB); 669 LLVM_READOBJ_TYPE_CASE(SYMBOLIC); 670 LLVM_READOBJ_TYPE_CASE(SYMENT); 671 LLVM_READOBJ_TYPE_CASE(SYMTAB); 672 LLVM_READOBJ_TYPE_CASE(TEXTREL); 673 default: return "unknown"; 674 } 675} 676 677#undef LLVM_READOBJ_TYPE_CASE 678 679template <class ELFT> 680static void printValue(const ELFFile<ELFT> *O, uint64_t Type, uint64_t Value, 681 bool Is64, raw_ostream &OS) { 682 switch (Type) { 683 case DT_PLTREL: 684 if (Value == DT_REL) { 685 OS << "REL"; 686 break; 687 } else if (Value == DT_RELA) { 688 OS << "RELA"; 689 break; 690 } 691 // Fallthrough. 692 case DT_PLTGOT: 693 case DT_HASH: 694 case DT_STRTAB: 695 case DT_SYMTAB: 696 case DT_RELA: 697 case DT_INIT: 698 case DT_FINI: 699 case DT_REL: 700 case DT_JMPREL: 701 case DT_INIT_ARRAY: 702 case DT_FINI_ARRAY: 703 case DT_PREINIT_ARRAY: 704 case DT_DEBUG: 705 case DT_NULL: 706 OS << format("0x%" PRIX64, Value); 707 break; 708 case DT_PLTRELSZ: 709 case DT_RELASZ: 710 case DT_RELAENT: 711 case DT_STRSZ: 712 case DT_SYMENT: 713 case DT_RELSZ: 714 case DT_RELENT: 715 case DT_INIT_ARRAYSZ: 716 case DT_FINI_ARRAYSZ: 717 case DT_PREINIT_ARRAYSZ: 718 OS << Value << " (bytes)"; 719 break; 720 case DT_NEEDED: 721 OS << "SharedLibrary (" << O->getDynamicString(Value) << ")"; 722 break; 723 case DT_SONAME: 724 OS << "LibrarySoname (" << O->getDynamicString(Value) << ")"; 725 break; 726 } 727} 728 729template<class ELFT> 730void ELFDumper<ELFT>::printUnwindInfo() { 731 W.startLine() << "UnwindInfo not implemented.\n"; 732} 733 734template<class ELFT> 735void ELFDumper<ELFT>::printDynamicTable() { 736 typedef typename ELFO::Elf_Dyn_Iter EDI; 737 EDI Start = Obj->begin_dynamic_table(), End = Obj->end_dynamic_table(true); 738 739 if (Start == End) 740 return; 741 742 ptrdiff_t Total = std::distance(Start, End); 743 raw_ostream &OS = W.getOStream(); 744 W.startLine() << "DynamicSection [ (" << Total << " entries)\n"; 745 746 bool Is64 = ELFT::Is64Bits; 747 748 W.startLine() 749 << " Tag" << (Is64 ? " " : " ") << "Type" 750 << " " << "Name/Value\n"; 751 for (; Start != End; ++Start) { 752 W.startLine() 753 << " " 754 << format(Is64 ? "0x%016" PRIX64 : "0x%08" PRIX64, Start->getTag()) 755 << " " << format("%-21s", getTypeString(Start->getTag())); 756 printValue(Obj, Start->getTag(), Start->getVal(), Is64, OS); 757 OS << "\n"; 758 } 759 760 W.startLine() << "]\n"; 761} 762 763template<class ELFT> 764void ELFDumper<ELFT>::printNeededLibraries() { 765 ListScope D(W, "NeededLibraries"); 766 767 error_code EC; 768 769 typedef std::vector<StringRef> LibsTy; 770 LibsTy Libs; 771 772 for (typename ELFO::Elf_Dyn_Iter DynI = Obj->begin_dynamic_table(), 773 DynE = Obj->end_dynamic_table(); 774 DynI != DynE; ++DynI) 775 if (DynI->d_tag == ELF::DT_NEEDED) 776 Libs.push_back(Obj->getDynamicString(DynI->d_un.d_val)); 777 778 std::stable_sort(Libs.begin(), Libs.end()); 779 780 for (LibsTy::const_iterator I = Libs.begin(), E = Libs.end(); I != E; ++I) { 781 outs() << " " << *I << "\n"; 782 } 783} 784 785template<class ELFT> 786void ELFDumper<ELFT>::printProgramHeaders() { 787 ListScope L(W, "ProgramHeaders"); 788 789 for (typename ELFO::Elf_Phdr_Iter PI = Obj->begin_program_headers(), 790 PE = Obj->end_program_headers(); 791 PI != PE; ++PI) { 792 DictScope P(W, "ProgramHeader"); 793 W.printEnum ("Type", PI->p_type, makeArrayRef(ElfSegmentTypes)); 794 W.printHex ("Offset", PI->p_offset); 795 W.printHex ("VirtualAddress", PI->p_vaddr); 796 W.printHex ("PhysicalAddress", PI->p_paddr); 797 W.printNumber("FileSize", PI->p_filesz); 798 W.printNumber("MemSize", PI->p_memsz); 799 W.printFlags ("Flags", PI->p_flags, makeArrayRef(ElfSegmentFlags)); 800 W.printNumber("Alignment", PI->p_align); 801 } 802} 803