lib/ObjectYAML/ELFYAML.cpp

   1 //===- ELFYAML.cpp - ELF YAMLIO implementation ----------------------------===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8 //
   9 // This file defines classes for handling the YAML representation of ELF.
  10 //
  11 //===----------------------------------------------------------------------===//
  12
  13 #include "llvm/ObjectYAML/ELFYAML.h"
  14 #include "llvm/ADT/MapVector.h"
  15 #include "llvm/ADT/StringRef.h"
  16 #include "llvm/BinaryFormat/ELF.h"
  17 #include "llvm/Support/Casting.h"
  18 #include "llvm/Support/ErrorHandling.h"
  19 #include "llvm/Support/MipsABIFlags.h"
  20 #include "llvm/Support/YAMLTraits.h"
  21 #include "llvm/Support/WithColor.h"
  22 #include <cassert>
  23 #include <cstdint>
  24
  25 namespace llvm {
  26
  27 ELFYAML::Section::~Section() = default;
  28
  29 namespace yaml {
  30
  31 void ScalarEnumerationTraits<ELFYAML::ELF_ET>::enumeration(
  32     IO &IO, ELFYAML::ELF_ET &Value) {
  33 #define ECase(X) IO.enumCase(Value, #X, ELF::X)
  34   ECase(ET_NONE);
  35   ECase(ET_REL);
  36   ECase(ET_EXEC);
  37   ECase(ET_DYN);
  38   ECase(ET_CORE);
  39 #undef ECase
  40   IO.enumFallback<Hex16>(Value);
  41 }
  42
  43 void ScalarEnumerationTraits<ELFYAML::ELF_PT>::enumeration(
  44     IO &IO, ELFYAML::ELF_PT &Value) {
  45 #define ECase(X) IO.enumCase(Value, #X, ELF::X)
  46   ECase(PT_NULL);
  47   ECase(PT_LOAD);
  48   ECase(PT_DYNAMIC);
  49   ECase(PT_INTERP);
  50   ECase(PT_NOTE);
  51   ECase(PT_SHLIB);
  52   ECase(PT_PHDR);
  53   ECase(PT_TLS);
  54   ECase(PT_GNU_EH_FRAME);
  55   ECase(PT_GNU_STACK);
  56   ECase(PT_GNU_RELRO);
  57 #undef ECase
  58   IO.enumFallback<Hex32>(Value);
  59 }
  60
  61 void ScalarEnumerationTraits<ELFYAML::ELF_EM>::enumeration(
  62     IO &IO, ELFYAML::ELF_EM &Value) {
  63 #define ECase(X) IO.enumCase(Value, #X, ELF::X)
  64   ECase(EM_NONE);
  65   ECase(EM_M32);
  66   ECase(EM_SPARC);
  67   ECase(EM_386);
  68   ECase(EM_68K);
  69   ECase(EM_88K);
  70   ECase(EM_IAMCU);
  71   ECase(EM_860);
  72   ECase(EM_MIPS);
  73   ECase(EM_S370);
  74   ECase(EM_MIPS_RS3_LE);
  75   ECase(EM_PARISC);
  76   ECase(EM_VPP500);
  77   ECase(EM_SPARC32PLUS);
  78   ECase(EM_960);
  79   ECase(EM_PPC);
  80   ECase(EM_PPC64);
  81   ECase(EM_S390);
  82   ECase(EM_SPU);
  83   ECase(EM_V800);
  84   ECase(EM_FR20);
  85   ECase(EM_RH32);
  86   ECase(EM_RCE);
  87   ECase(EM_ARM);
  88   ECase(EM_ALPHA);
  89   ECase(EM_SH);
  90   ECase(EM_SPARCV9);
  91   ECase(EM_TRICORE);
  92   ECase(EM_ARC);
  93   ECase(EM_H8_300);
  94   ECase(EM_H8_300H);
  95   ECase(EM_H8S);
  96   ECase(EM_H8_500);
  97   ECase(EM_IA_64);
  98   ECase(EM_MIPS_X);
  99   ECase(EM_COLDFIRE);
 100   ECase(EM_68HC12);
 101   ECase(EM_MMA);
 102   ECase(EM_PCP);
 103   ECase(EM_NCPU);
 104   ECase(EM_NDR1);
 105   ECase(EM_STARCORE);
 106   ECase(EM_ME16);
 107   ECase(EM_ST100);
 108   ECase(EM_TINYJ);
 109   ECase(EM_X86_64);
 110   ECase(EM_PDSP);
 111   ECase(EM_PDP10);
 112   ECase(EM_PDP11);
 113   ECase(EM_FX66);
 114   ECase(EM_ST9PLUS);
 115   ECase(EM_ST7);
 116   ECase(EM_68HC16);
 117   ECase(EM_68HC11);
 118   ECase(EM_68HC08);
 119   ECase(EM_68HC05);
 120   ECase(EM_SVX);
 121   ECase(EM_ST19);
 122   ECase(EM_VAX);
 123   ECase(EM_CRIS);
 124   ECase(EM_JAVELIN);
 125   ECase(EM_FIREPATH);
 126   ECase(EM_ZSP);
 127   ECase(EM_MMIX);
 128   ECase(EM_HUANY);
 129   ECase(EM_PRISM);
 130   ECase(EM_AVR);
 131   ECase(EM_FR30);
 132   ECase(EM_D10V);
 133   ECase(EM_D30V);
 134   ECase(EM_V850);
 135   ECase(EM_M32R);
 136   ECase(EM_MN10300);
 137   ECase(EM_MN10200);
 138   ECase(EM_PJ);
 139   ECase(EM_OPENRISC);
 140   ECase(EM_ARC_COMPACT);
 141   ECase(EM_XTENSA);
 142   ECase(EM_VIDEOCORE);
 143   ECase(EM_TMM_GPP);
 144   ECase(EM_NS32K);
 145   ECase(EM_TPC);
 146   ECase(EM_SNP1K);
 147   ECase(EM_ST200);
 148   ECase(EM_IP2K);
 149   ECase(EM_MAX);
 150   ECase(EM_CR);
 151   ECase(EM_F2MC16);
 152   ECase(EM_MSP430);
 153   ECase(EM_BLACKFIN);
 154   ECase(EM_SE_C33);
 155   ECase(EM_SEP);
 156   ECase(EM_ARCA);
 157   ECase(EM_UNICORE);
 158   ECase(EM_EXCESS);
 159   ECase(EM_DXP);
 160   ECase(EM_ALTERA_NIOS2);
 161   ECase(EM_CRX);
 162   ECase(EM_XGATE);
 163   ECase(EM_C166);
 164   ECase(EM_M16C);
 165   ECase(EM_DSPIC30F);
 166   ECase(EM_CE);
 167   ECase(EM_M32C);
 168   ECase(EM_TSK3000);
 169   ECase(EM_RS08);
 170   ECase(EM_SHARC);
 171   ECase(EM_ECOG2);
 172   ECase(EM_SCORE7);
 173   ECase(EM_DSP24);
 174   ECase(EM_VIDEOCORE3);
 175   ECase(EM_LATTICEMICO32);
 176   ECase(EM_SE_C17);
 177   ECase(EM_TI_C6000);
 178   ECase(EM_TI_C2000);
 179   ECase(EM_TI_C5500);
 180   ECase(EM_MMDSP_PLUS);
 181   ECase(EM_CYPRESS_M8C);
 182   ECase(EM_R32C);
 183   ECase(EM_TRIMEDIA);
 184   ECase(EM_HEXAGON);
 185   ECase(EM_8051);
 186   ECase(EM_STXP7X);
 187   ECase(EM_NDS32);
 188   ECase(EM_ECOG1);
 189   ECase(EM_ECOG1X);
 190   ECase(EM_MAXQ30);
 191   ECase(EM_XIMO16);
 192   ECase(EM_MANIK);
 193   ECase(EM_CRAYNV2);
 194   ECase(EM_RX);
 195   ECase(EM_METAG);
 196   ECase(EM_MCST_ELBRUS);
 197   ECase(EM_ECOG16);
 198   ECase(EM_CR16);
 199   ECase(EM_ETPU);
 200   ECase(EM_SLE9X);
 201   ECase(EM_L10M);
 202   ECase(EM_K10M);
 203   ECase(EM_AARCH64);
 204   ECase(EM_AVR32);
 205   ECase(EM_STM8);
 206   ECase(EM_TILE64);
 207   ECase(EM_TILEPRO);
 208   ECase(EM_CUDA);
 209   ECase(EM_TILEGX);
 210   ECase(EM_CLOUDSHIELD);
 211   ECase(EM_COREA_1ST);
 212   ECase(EM_COREA_2ND);
 213   ECase(EM_ARC_COMPACT2);
 214   ECase(EM_OPEN8);
 215   ECase(EM_RL78);
 216   ECase(EM_VIDEOCORE5);
 217   ECase(EM_78KOR);
 218   ECase(EM_56800EX);
 219   ECase(EM_AMDGPU);
 220   ECase(EM_RISCV);
 221   ECase(EM_LANAI);
 222   ECase(EM_BPF);
 223 #undef ECase
 224 }
 225
 226 void ScalarEnumerationTraits<ELFYAML::ELF_ELFCLASS>::enumeration(
 227     IO &IO, ELFYAML::ELF_ELFCLASS &Value) {
 228 #define ECase(X) IO.enumCase(Value, #X, ELF::X)
 229   // Since the semantics of ELFCLASSNONE is "invalid", just don't accept it
 230   // here.
 231   ECase(ELFCLASS32);
 232   ECase(ELFCLASS64);
 233 #undef ECase
 234 }
 235
 236 void ScalarEnumerationTraits<ELFYAML::ELF_ELFDATA>::enumeration(
 237     IO &IO, ELFYAML::ELF_ELFDATA &Value) {
 238 #define ECase(X) IO.enumCase(Value, #X, ELF::X)
 239   // ELFDATANONE is an invalid data encoding, but we accept it because
 240   // we want to be able to produce invalid binaries for the tests.
 241   ECase(ELFDATANONE);
 242   ECase(ELFDATA2LSB);
 243   ECase(ELFDATA2MSB);
 244 #undef ECase
 245 }
 246
 247 void ScalarEnumerationTraits<ELFYAML::ELF_ELFOSABI>::enumeration(
 248     IO &IO, ELFYAML::ELF_ELFOSABI &Value) {
 249 #define ECase(X) IO.enumCase(Value, #X, ELF::X)
 250   ECase(ELFOSABI_NONE);
 251   ECase(ELFOSABI_HPUX);
 252   ECase(ELFOSABI_NETBSD);
 253   ECase(ELFOSABI_GNU);
 254   ECase(ELFOSABI_HURD);
 255   ECase(ELFOSABI_SOLARIS);
 256   ECase(ELFOSABI_AIX);
 257   ECase(ELFOSABI_IRIX);
 258   ECase(ELFOSABI_FREEBSD);
 259   ECase(ELFOSABI_TRU64);
 260   ECase(ELFOSABI_MODESTO);
 261   ECase(ELFOSABI_OPENBSD);
 262   ECase(ELFOSABI_OPENVMS);
 263   ECase(ELFOSABI_NSK);
 264   ECase(ELFOSABI_AROS);
 265   ECase(ELFOSABI_FENIXOS);
 266   ECase(ELFOSABI_CLOUDABI);
 267   ECase(ELFOSABI_AMDGPU_HSA);
 268   ECase(ELFOSABI_AMDGPU_PAL);
 269   ECase(ELFOSABI_AMDGPU_MESA3D);
 270   ECase(ELFOSABI_ARM);
 271   ECase(ELFOSABI_C6000_ELFABI);
 272   ECase(ELFOSABI_C6000_LINUX);
 273   ECase(ELFOSABI_STANDALONE);
 274 #undef ECase
 275 }
 276
 277 void ScalarBitSetTraits<ELFYAML::ELF_EF>::bitset(IO &IO,
 278                                                  ELFYAML::ELF_EF &Value) {
 279   const auto *Object = static_cast<ELFYAML::Object *>(IO.getContext());
 280   assert(Object && "The IO context is not initialized");
 281 #define BCase(X) IO.bitSetCase(Value, #X, ELF::X)
 282 #define BCaseMask(X, M) IO.maskedBitSetCase(Value, #X, ELF::X, ELF::M)
 283   switch (Object->Header.Machine) {
 284   case ELF::EM_ARM:
 285     BCase(EF_ARM_SOFT_FLOAT);
 286     BCase(EF_ARM_VFP_FLOAT);
 287     BCaseMask(EF_ARM_EABI_UNKNOWN, EF_ARM_EABIMASK);
 288     BCaseMask(EF_ARM_EABI_VER1, EF_ARM_EABIMASK);
 289     BCaseMask(EF_ARM_EABI_VER2, EF_ARM_EABIMASK);
 290     BCaseMask(EF_ARM_EABI_VER3, EF_ARM_EABIMASK);
 291     BCaseMask(EF_ARM_EABI_VER4, EF_ARM_EABIMASK);
 292     BCaseMask(EF_ARM_EABI_VER5, EF_ARM_EABIMASK);
 293     break;
 294   case ELF::EM_MIPS:
 295     BCase(EF_MIPS_NOREORDER);
 296     BCase(EF_MIPS_PIC);
 297     BCase(EF_MIPS_CPIC);
 298     BCase(EF_MIPS_ABI2);
 299     BCase(EF_MIPS_32BITMODE);
 300     BCase(EF_MIPS_FP64);
 301     BCase(EF_MIPS_NAN2008);
 302     BCase(EF_MIPS_MICROMIPS);
 303     BCase(EF_MIPS_ARCH_ASE_M16);
 304     BCase(EF_MIPS_ARCH_ASE_MDMX);
 305     BCaseMask(EF_MIPS_ABI_O32, EF_MIPS_ABI);
 306     BCaseMask(EF_MIPS_ABI_O64, EF_MIPS_ABI);
 307     BCaseMask(EF_MIPS_ABI_EABI32, EF_MIPS_ABI);
 308     BCaseMask(EF_MIPS_ABI_EABI64, EF_MIPS_ABI);
 309     BCaseMask(EF_MIPS_MACH_3900, EF_MIPS_MACH);
 310     BCaseMask(EF_MIPS_MACH_4010, EF_MIPS_MACH);
 311     BCaseMask(EF_MIPS_MACH_4100, EF_MIPS_MACH);
 312     BCaseMask(EF_MIPS_MACH_4650, EF_MIPS_MACH);
 313     BCaseMask(EF_MIPS_MACH_4120, EF_MIPS_MACH);
 314     BCaseMask(EF_MIPS_MACH_4111, EF_MIPS_MACH);
 315     BCaseMask(EF_MIPS_MACH_SB1, EF_MIPS_MACH);
 316     BCaseMask(EF_MIPS_MACH_OCTEON, EF_MIPS_MACH);
 317     BCaseMask(EF_MIPS_MACH_XLR, EF_MIPS_MACH);
 318     BCaseMask(EF_MIPS_MACH_OCTEON2, EF_MIPS_MACH);
 319     BCaseMask(EF_MIPS_MACH_OCTEON3, EF_MIPS_MACH);
 320     BCaseMask(EF_MIPS_MACH_5400, EF_MIPS_MACH);
 321     BCaseMask(EF_MIPS_MACH_5900, EF_MIPS_MACH);
 322     BCaseMask(EF_MIPS_MACH_5500, EF_MIPS_MACH);
 323     BCaseMask(EF_MIPS_MACH_9000, EF_MIPS_MACH);
 324     BCaseMask(EF_MIPS_MACH_LS2E, EF_MIPS_MACH);
 325     BCaseMask(EF_MIPS_MACH_LS2F, EF_MIPS_MACH);
 326     BCaseMask(EF_MIPS_MACH_LS3A, EF_MIPS_MACH);
 327     BCaseMask(EF_MIPS_ARCH_1, EF_MIPS_ARCH);
 328     BCaseMask(EF_MIPS_ARCH_2, EF_MIPS_ARCH);
 329     BCaseMask(EF_MIPS_ARCH_3, EF_MIPS_ARCH);
 330     BCaseMask(EF_MIPS_ARCH_4, EF_MIPS_ARCH);
 331     BCaseMask(EF_MIPS_ARCH_5, EF_MIPS_ARCH);
 332     BCaseMask(EF_MIPS_ARCH_32, EF_MIPS_ARCH);
 333     BCaseMask(EF_MIPS_ARCH_64, EF_MIPS_ARCH);
 334     BCaseMask(EF_MIPS_ARCH_32R2, EF_MIPS_ARCH);
 335     BCaseMask(EF_MIPS_ARCH_64R2, EF_MIPS_ARCH);
 336     BCaseMask(EF_MIPS_ARCH_32R6, EF_MIPS_ARCH);
 337     BCaseMask(EF_MIPS_ARCH_64R6, EF_MIPS_ARCH);
 338     break;
 339   case ELF::EM_HEXAGON:
 340     BCase(EF_HEXAGON_MACH_V2);
 341     BCase(EF_HEXAGON_MACH_V3);
 342     BCase(EF_HEXAGON_MACH_V4);
 343     BCase(EF_HEXAGON_MACH_V5);
 344     BCase(EF_HEXAGON_MACH_V55);
 345     BCase(EF_HEXAGON_MACH_V60);
 346     BCase(EF_HEXAGON_MACH_V62);
 347     BCase(EF_HEXAGON_MACH_V65);
 348     BCase(EF_HEXAGON_ISA_V2);
 349     BCase(EF_HEXAGON_ISA_V3);
 350     BCase(EF_HEXAGON_ISA_V4);
 351     BCase(EF_HEXAGON_ISA_V5);
 352     BCase(EF_HEXAGON_ISA_V55);
 353     BCase(EF_HEXAGON_ISA_V60);
 354     BCase(EF_HEXAGON_ISA_V62);
 355     BCase(EF_HEXAGON_ISA_V65);
 356     break;
 357   case ELF::EM_AVR:
 358     BCase(EF_AVR_ARCH_AVR1);
 359     BCase(EF_AVR_ARCH_AVR2);
 360     BCase(EF_AVR_ARCH_AVR25);
 361     BCase(EF_AVR_ARCH_AVR3);
 362     BCase(EF_AVR_ARCH_AVR31);
 363     BCase(EF_AVR_ARCH_AVR35);
 364     BCase(EF_AVR_ARCH_AVR4);
 365     BCase(EF_AVR_ARCH_AVR51);
 366     BCase(EF_AVR_ARCH_AVR6);
 367     BCase(EF_AVR_ARCH_AVRTINY);
 368     BCase(EF_AVR_ARCH_XMEGA1);
 369     BCase(EF_AVR_ARCH_XMEGA2);
 370     BCase(EF_AVR_ARCH_XMEGA3);
 371     BCase(EF_AVR_ARCH_XMEGA4);
 372     BCase(EF_AVR_ARCH_XMEGA5);
 373     BCase(EF_AVR_ARCH_XMEGA6);
 374     BCase(EF_AVR_ARCH_XMEGA7);
 375     break;
 376   case ELF::EM_RISCV:
 377     BCase(EF_RISCV_RVC);
 378     BCaseMask(EF_RISCV_FLOAT_ABI_SOFT, EF_RISCV_FLOAT_ABI);
 379     BCaseMask(EF_RISCV_FLOAT_ABI_SINGLE, EF_RISCV_FLOAT_ABI);
 380     BCaseMask(EF_RISCV_FLOAT_ABI_DOUBLE, EF_RISCV_FLOAT_ABI);
 381     BCaseMask(EF_RISCV_FLOAT_ABI_QUAD, EF_RISCV_FLOAT_ABI);
 382     BCase(EF_RISCV_RVE);
 383     break;
 384   case ELF::EM_AMDGPU:
 385     BCaseMask(EF_AMDGPU_MACH_NONE, EF_AMDGPU_MACH);
 386     BCaseMask(EF_AMDGPU_MACH_R600_R600, EF_AMDGPU_MACH);
 387     BCaseMask(EF_AMDGPU_MACH_R600_R630, EF_AMDGPU_MACH);
 388     BCaseMask(EF_AMDGPU_MACH_R600_RS880, EF_AMDGPU_MACH);
 389     BCaseMask(EF_AMDGPU_MACH_R600_RV670, EF_AMDGPU_MACH);
 390     BCaseMask(EF_AMDGPU_MACH_R600_RV710, EF_AMDGPU_MACH);
 391     BCaseMask(EF_AMDGPU_MACH_R600_RV730, EF_AMDGPU_MACH);
 392     BCaseMask(EF_AMDGPU_MACH_R600_RV770, EF_AMDGPU_MACH);
 393     BCaseMask(EF_AMDGPU_MACH_R600_CEDAR, EF_AMDGPU_MACH);
 394     BCaseMask(EF_AMDGPU_MACH_R600_CYPRESS, EF_AMDGPU_MACH);
 395     BCaseMask(EF_AMDGPU_MACH_R600_JUNIPER, EF_AMDGPU_MACH);
 396     BCaseMask(EF_AMDGPU_MACH_R600_REDWOOD, EF_AMDGPU_MACH);
 397     BCaseMask(EF_AMDGPU_MACH_R600_SUMO, EF_AMDGPU_MACH);
 398     BCaseMask(EF_AMDGPU_MACH_R600_BARTS, EF_AMDGPU_MACH);
 399     BCaseMask(EF_AMDGPU_MACH_R600_CAICOS, EF_AMDGPU_MACH);
 400     BCaseMask(EF_AMDGPU_MACH_R600_CAYMAN, EF_AMDGPU_MACH);
 401     BCaseMask(EF_AMDGPU_MACH_R600_TURKS, EF_AMDGPU_MACH);
 402     BCaseMask(EF_AMDGPU_MACH_AMDGCN_GFX600, EF_AMDGPU_MACH);
 403     BCaseMask(EF_AMDGPU_MACH_AMDGCN_GFX601, EF_AMDGPU_MACH);
 404     BCaseMask(EF_AMDGPU_MACH_AMDGCN_GFX700, EF_AMDGPU_MACH);
 405     BCaseMask(EF_AMDGPU_MACH_AMDGCN_GFX701, EF_AMDGPU_MACH);
 406     BCaseMask(EF_AMDGPU_MACH_AMDGCN_GFX702, EF_AMDGPU_MACH);
 407     BCaseMask(EF_AMDGPU_MACH_AMDGCN_GFX703, EF_AMDGPU_MACH);
 408     BCaseMask(EF_AMDGPU_MACH_AMDGCN_GFX704, EF_AMDGPU_MACH);
 409     BCaseMask(EF_AMDGPU_MACH_AMDGCN_GFX801, EF_AMDGPU_MACH);
 410     BCaseMask(EF_AMDGPU_MACH_AMDGCN_GFX802, EF_AMDGPU_MACH);
 411     BCaseMask(EF_AMDGPU_MACH_AMDGCN_GFX803, EF_AMDGPU_MACH);
 412     BCaseMask(EF_AMDGPU_MACH_AMDGCN_GFX810, EF_AMDGPU_MACH);
 413     BCaseMask(EF_AMDGPU_MACH_AMDGCN_GFX900, EF_AMDGPU_MACH);
 414     BCaseMask(EF_AMDGPU_MACH_AMDGCN_GFX902, EF_AMDGPU_MACH);
 415     BCaseMask(EF_AMDGPU_MACH_AMDGCN_GFX904, EF_AMDGPU_MACH);
 416     BCaseMask(EF_AMDGPU_MACH_AMDGCN_GFX906, EF_AMDGPU_MACH);
 417     BCaseMask(EF_AMDGPU_MACH_AMDGCN_GFX908, EF_AMDGPU_MACH);
 418     BCaseMask(EF_AMDGPU_MACH_AMDGCN_GFX909, EF_AMDGPU_MACH);
 419     BCaseMask(EF_AMDGPU_MACH_AMDGCN_GFX1010, EF_AMDGPU_MACH);
 420     BCaseMask(EF_AMDGPU_MACH_AMDGCN_GFX1011, EF_AMDGPU_MACH);
 421     BCaseMask(EF_AMDGPU_MACH_AMDGCN_GFX1012, EF_AMDGPU_MACH);
 422     BCase(EF_AMDGPU_XNACK);
 423     BCase(EF_AMDGPU_SRAM_ECC);
 424     break;
 425   case ELF::EM_X86_64:
 426     break;
 427   default:
 428     llvm_unreachable("Unsupported architecture");
 429   }
 430 #undef BCase
 431 #undef BCaseMask
 432 }
 433
 434 void ScalarEnumerationTraits<ELFYAML::ELF_SHT>::enumeration(
 435     IO &IO, ELFYAML::ELF_SHT &Value) {
 436   const auto *Object = static_cast<ELFYAML::Object *>(IO.getContext());
 437   assert(Object && "The IO context is not initialized");
 438 #define ECase(X) IO.enumCase(Value, #X, ELF::X)
 439   ECase(SHT_NULL);
 440   ECase(SHT_PROGBITS);
 441   ECase(SHT_SYMTAB);
 442   // FIXME: Issue a diagnostic with this information.
 443   ECase(SHT_STRTAB);
 444   ECase(SHT_RELA);
 445   ECase(SHT_HASH);
 446   ECase(SHT_DYNAMIC);
 447   ECase(SHT_NOTE);
 448   ECase(SHT_NOBITS);
 449   ECase(SHT_REL);
 450   ECase(SHT_SHLIB);
 451   ECase(SHT_DYNSYM);
 452   ECase(SHT_INIT_ARRAY);
 453   ECase(SHT_FINI_ARRAY);
 454   ECase(SHT_PREINIT_ARRAY);
 455   ECase(SHT_GROUP);
 456   ECase(SHT_SYMTAB_SHNDX);
 457   ECase(SHT_RELR);
 458   ECase(SHT_ANDROID_REL);
 459   ECase(SHT_ANDROID_RELA);
 460   ECase(SHT_ANDROID_RELR);
 461   ECase(SHT_LLVM_ODRTAB);
 462   ECase(SHT_LLVM_LINKER_OPTIONS);
 463   ECase(SHT_LLVM_CALL_GRAPH_PROFILE);
 464   ECase(SHT_LLVM_ADDRSIG);
 465   ECase(SHT_LLVM_DEPENDENT_LIBRARIES);
 466   ECase(SHT_LLVM_SYMPART);
 467   ECase(SHT_LLVM_PART_EHDR);
 468   ECase(SHT_LLVM_PART_PHDR);
 469   ECase(SHT_GNU_ATTRIBUTES);
 470   ECase(SHT_GNU_HASH);
 471   ECase(SHT_GNU_verdef);
 472   ECase(SHT_GNU_verneed);
 473   ECase(SHT_GNU_versym);
 474   switch (Object->Header.Machine) {
 475   case ELF::EM_ARM:
 476     ECase(SHT_ARM_EXIDX);
 477     ECase(SHT_ARM_PREEMPTMAP);
 478     ECase(SHT_ARM_ATTRIBUTES);
 479     ECase(SHT_ARM_DEBUGOVERLAY);
 480     ECase(SHT_ARM_OVERLAYSECTION);
 481     break;
 482   case ELF::EM_HEXAGON:
 483     ECase(SHT_HEX_ORDERED);
 484     break;
 485   case ELF::EM_X86_64:
 486     ECase(SHT_X86_64_UNWIND);
 487     break;
 488   case ELF::EM_MIPS:
 489     ECase(SHT_MIPS_REGINFO);
 490     ECase(SHT_MIPS_OPTIONS);
 491     ECase(SHT_MIPS_DWARF);
 492     ECase(SHT_MIPS_ABIFLAGS);
 493     break;
 494   default:
 495     // Nothing to do.
 496     break;
 497   }
 498 #undef ECase
 499   IO.enumFallback<Hex32>(Value);
 500 }
 501
 502 void ScalarBitSetTraits<ELFYAML::ELF_PF>::bitset(IO &IO,
 503                                                  ELFYAML::ELF_PF &Value) {
 504 #define BCase(X) IO.bitSetCase(Value, #X, ELF::X)
 505   BCase(PF_X);
 506   BCase(PF_W);
 507   BCase(PF_R);
 508 }
 509
 510 void ScalarBitSetTraits<ELFYAML::ELF_SHF>::bitset(IO &IO,
 511                                                   ELFYAML::ELF_SHF &Value) {
 512   const auto *Object = static_cast<ELFYAML::Object *>(IO.getContext());
 513 #define BCase(X) IO.bitSetCase(Value, #X, ELF::X)
 514   BCase(SHF_WRITE);
 515   BCase(SHF_ALLOC);
 516   BCase(SHF_EXCLUDE);
 517   BCase(SHF_EXECINSTR);
 518   BCase(SHF_MERGE);
 519   BCase(SHF_STRINGS);
 520   BCase(SHF_INFO_LINK);
 521   BCase(SHF_LINK_ORDER);
 522   BCase(SHF_OS_NONCONFORMING);
 523   BCase(SHF_GROUP);
 524   BCase(SHF_TLS);
 525   BCase(SHF_COMPRESSED);
 526   switch (Object->Header.Machine) {
 527   case ELF::EM_ARM:
 528     BCase(SHF_ARM_PURECODE);
 529     break;
 530   case ELF::EM_HEXAGON:
 531     BCase(SHF_HEX_GPREL);
 532     break;
 533   case ELF::EM_MIPS:
 534     BCase(SHF_MIPS_NODUPES);
 535     BCase(SHF_MIPS_NAMES);
 536     BCase(SHF_MIPS_LOCAL);
 537     BCase(SHF_MIPS_NOSTRIP);
 538     BCase(SHF_MIPS_GPREL);
 539     BCase(SHF_MIPS_MERGE);
 540     BCase(SHF_MIPS_ADDR);
 541     BCase(SHF_MIPS_STRING);
 542     break;
 543   case ELF::EM_X86_64:
 544     BCase(SHF_X86_64_LARGE);
 545     break;
 546   default:
 547     // Nothing to do.
 548     break;
 549   }
 550 #undef BCase
 551 }
 552
 553 void ScalarEnumerationTraits<ELFYAML::ELF_SHN>::enumeration(
 554     IO &IO, ELFYAML::ELF_SHN &Value) {
 555 #define ECase(X) IO.enumCase(Value, #X, ELF::X)
 556   ECase(SHN_UNDEF);
 557   ECase(SHN_LORESERVE);
 558   ECase(SHN_LOPROC);
 559   ECase(SHN_HIPROC);
 560   ECase(SHN_LOOS);
 561   ECase(SHN_HIOS);
 562   ECase(SHN_ABS);
 563   ECase(SHN_COMMON);
 564   ECase(SHN_XINDEX);
 565   ECase(SHN_HIRESERVE);
 566   ECase(SHN_AMDGPU_LDS);
 567   ECase(SHN_HEXAGON_SCOMMON);
 568   ECase(SHN_HEXAGON_SCOMMON_1);
 569   ECase(SHN_HEXAGON_SCOMMON_2);
 570   ECase(SHN_HEXAGON_SCOMMON_4);
 571   ECase(SHN_HEXAGON_SCOMMON_8);
 572 #undef ECase
 573   IO.enumFallback<Hex16>(Value);
 574 }
 575
 576 void ScalarEnumerationTraits<ELFYAML::ELF_STB>::enumeration(
 577     IO &IO, ELFYAML::ELF_STB &Value) {
 578 #define ECase(X) IO.enumCase(Value, #X, ELF::X)
 579   ECase(STB_LOCAL);
 580   ECase(STB_GLOBAL);
 581   ECase(STB_WEAK);
 582   ECase(STB_GNU_UNIQUE);
 583 #undef ECase
 584   IO.enumFallback<Hex8>(Value);
 585 }
 586
 587 void ScalarEnumerationTraits<ELFYAML::ELF_STT>::enumeration(
 588     IO &IO, ELFYAML::ELF_STT &Value) {
 589 #define ECase(X) IO.enumCase(Value, #X, ELF::X)
 590   ECase(STT_NOTYPE);
 591   ECase(STT_OBJECT);
 592   ECase(STT_FUNC);
 593   ECase(STT_SECTION);
 594   ECase(STT_FILE);
 595   ECase(STT_COMMON);
 596   ECase(STT_TLS);
 597   ECase(STT_GNU_IFUNC);
 598 #undef ECase
 599   IO.enumFallback<Hex8>(Value);
 600 }
 601
 602
 603 void ScalarEnumerationTraits<ELFYAML::ELF_RSS>::enumeration(
 604     IO &IO, ELFYAML::ELF_RSS &Value) {
 605 #define ECase(X) IO.enumCase(Value, #X, ELF::X)
 606   ECase(RSS_UNDEF);
 607   ECase(RSS_GP);
 608   ECase(RSS_GP0);
 609   ECase(RSS_LOC);
 610 #undef ECase
 611 }
 612
 613 void ScalarEnumerationTraits<ELFYAML::ELF_REL>::enumeration(
 614     IO &IO, ELFYAML::ELF_REL &Value) {
 615   const auto *Object = static_cast<ELFYAML::Object *>(IO.getContext());
 616   assert(Object && "The IO context is not initialized");
 617 #define ELF_RELOC(X, Y) IO.enumCase(Value, #X, ELF::X);
 618   switch (Object->Header.Machine) {
 619   case ELF::EM_X86_64:
 620 #include "llvm/BinaryFormat/ELFRelocs/x86_64.def"
 621     break;
 622   case ELF::EM_MIPS:
 623 #include "llvm/BinaryFormat/ELFRelocs/Mips.def"
 624     break;
 625   case ELF::EM_HEXAGON:
 626 #include "llvm/BinaryFormat/ELFRelocs/Hexagon.def"
 627     break;
 628   case ELF::EM_386:
 629   case ELF::EM_IAMCU:
 630 #include "llvm/BinaryFormat/ELFRelocs/i386.def"
 631     break;
 632   case ELF::EM_AARCH64:
 633 #include "llvm/BinaryFormat/ELFRelocs/AArch64.def"
 634     break;
 635   case ELF::EM_ARM:
 636 #include "llvm/BinaryFormat/ELFRelocs/ARM.def"
 637     break;
 638   case ELF::EM_ARC:
 639 #include "llvm/BinaryFormat/ELFRelocs/ARC.def"
 640     break;
 641   case ELF::EM_RISCV:
 642 #include "llvm/BinaryFormat/ELFRelocs/RISCV.def"
 643     break;
 644   case ELF::EM_LANAI:
 645 #include "llvm/BinaryFormat/ELFRelocs/Lanai.def"
 646     break;
 647   case ELF::EM_AMDGPU:
 648 #include "llvm/BinaryFormat/ELFRelocs/AMDGPU.def"
 649     break;
 650   case ELF::EM_BPF:
 651 #include "llvm/BinaryFormat/ELFRelocs/BPF.def"
 652     break;
 653   default:
 654     llvm_unreachable("Unsupported architecture");
 655   }
 656 #undef ELF_RELOC
 657   IO.enumFallback<Hex32>(Value);
 658 }
 659
 660 void ScalarEnumerationTraits<ELFYAML::ELF_DYNTAG>::enumeration(
 661     IO &IO, ELFYAML::ELF_DYNTAG &Value) {
 662   const auto *Object = static_cast<ELFYAML::Object *>(IO.getContext());
 663   assert(Object && "The IO context is not initialized");
 664
 665 // Disable architecture specific tags by default. We might enable them below.
 666 #define AARCH64_DYNAMIC_TAG(name, value)
 667 #define MIPS_DYNAMIC_TAG(name, value)
 668 #define HEXAGON_DYNAMIC_TAG(name, value)
 669 #define PPC_DYNAMIC_TAG(name, value)
 670 #define PPC64_DYNAMIC_TAG(name, value)
 671 // Ignore marker tags such as DT_HIOS (maps to DT_VERNEEDNUM), etc.
 672 #define DYNAMIC_TAG_MARKER(name, value)
 673
 674 #define STRINGIFY(X) (#X)
 675 #define DYNAMIC_TAG(X, Y) IO.enumCase(Value, STRINGIFY(DT_##X), ELF::DT_##X);
 676   switch (Object->Header.Machine) {
 677   case ELF::EM_AARCH64:
 678 #undef AARCH64_DYNAMIC_TAG
 679 #define AARCH64_DYNAMIC_TAG(name, value) DYNAMIC_TAG(name, value)
 680 #include "llvm/BinaryFormat/DynamicTags.def"
 681 #undef AARCH64_DYNAMIC_TAG
 682 #define AARCH64_DYNAMIC_TAG(name, value)
 683     break;
 684   case ELF::EM_MIPS:
 685 #undef MIPS_DYNAMIC_TAG
 686 #define MIPS_DYNAMIC_TAG(name, value) DYNAMIC_TAG(name, value)
 687 #include "llvm/BinaryFormat/DynamicTags.def"
 688 #undef MIPS_DYNAMIC_TAG
 689 #define MIPS_DYNAMIC_TAG(name, value)
 690     break;
 691   case ELF::EM_HEXAGON:
 692 #undef HEXAGON_DYNAMIC_TAG
 693 #define HEXAGON_DYNAMIC_TAG(name, value) DYNAMIC_TAG(name, value)
 694 #include "llvm/BinaryFormat/DynamicTags.def"
 695 #undef HEXAGON_DYNAMIC_TAG
 696 #define HEXAGON_DYNAMIC_TAG(name, value)
 697     break;
 698   case ELF::EM_PPC:
 699 #undef PPC_DYNAMIC_TAG
 700 #define PPC_DYNAMIC_TAG(name, value) DYNAMIC_TAG(name, value)
 701 #include "llvm/BinaryFormat/DynamicTags.def"
 702 #undef PPC_DYNAMIC_TAG
 703 #define PPC_DYNAMIC_TAG(name, value)
 704     break;
 705   case ELF::EM_PPC64:
 706 #undef PPC64_DYNAMIC_TAG
 707 #define PPC64_DYNAMIC_TAG(name, value) DYNAMIC_TAG(name, value)
 708 #include "llvm/BinaryFormat/DynamicTags.def"
 709 #undef PPC64_DYNAMIC_TAG
 710 #define PPC64_DYNAMIC_TAG(name, value)
 711     break;
 712   default:
 713 #include "llvm/BinaryFormat/DynamicTags.def"
 714     break;
 715   }
 716 #undef AARCH64_DYNAMIC_TAG
 717 #undef MIPS_DYNAMIC_TAG
 718 #undef HEXAGON_DYNAMIC_TAG
 719 #undef PPC_DYNAMIC_TAG
 720 #undef PPC64_DYNAMIC_TAG
 721 #undef DYNAMIC_TAG_MARKER
 722 #undef STRINGIFY
 723 #undef DYNAMIC_TAG
 724
 725   IO.enumFallback<Hex64>(Value);
 726 }
 727
 728 void ScalarEnumerationTraits<ELFYAML::MIPS_AFL_REG>::enumeration(
 729     IO &IO, ELFYAML::MIPS_AFL_REG &Value) {
 730 #define ECase(X) IO.enumCase(Value, #X, Mips::AFL_##X)
 731   ECase(REG_NONE);
 732   ECase(REG_32);
 733   ECase(REG_64);
 734   ECase(REG_128);
 735 #undef ECase
 736 }
 737
 738 void ScalarEnumerationTraits<ELFYAML::MIPS_ABI_FP>::enumeration(
 739     IO &IO, ELFYAML::MIPS_ABI_FP &Value) {
 740 #define ECase(X) IO.enumCase(Value, #X, Mips::Val_GNU_MIPS_ABI_##X)
 741   ECase(FP_ANY);
 742   ECase(FP_DOUBLE);
 743   ECase(FP_SINGLE);
 744   ECase(FP_SOFT);
 745   ECase(FP_OLD_64);
 746   ECase(FP_XX);
 747   ECase(FP_64);
 748   ECase(FP_64A);
 749 #undef ECase
 750 }
 751
 752 void ScalarEnumerationTraits<ELFYAML::MIPS_AFL_EXT>::enumeration(
 753     IO &IO, ELFYAML::MIPS_AFL_EXT &Value) {
 754 #define ECase(X) IO.enumCase(Value, #X, Mips::AFL_##X)
 755   ECase(EXT_NONE);
 756   ECase(EXT_XLR);
 757   ECase(EXT_OCTEON2);
 758   ECase(EXT_OCTEONP);
 759   ECase(EXT_LOONGSON_3A);
 760   ECase(EXT_OCTEON);
 761   ECase(EXT_5900);
 762   ECase(EXT_4650);
 763   ECase(EXT_4010);
 764   ECase(EXT_4100);
 765   ECase(EXT_3900);
 766   ECase(EXT_10000);
 767   ECase(EXT_SB1);
 768   ECase(EXT_4111);
 769   ECase(EXT_4120);
 770   ECase(EXT_5400);
 771   ECase(EXT_5500);
 772   ECase(EXT_LOONGSON_2E);
 773   ECase(EXT_LOONGSON_2F);
 774   ECase(EXT_OCTEON3);
 775 #undef ECase
 776 }
 777
 778 void ScalarEnumerationTraits<ELFYAML::MIPS_ISA>::enumeration(
 779     IO &IO, ELFYAML::MIPS_ISA &Value) {
 780   IO.enumCase(Value, "MIPS1", 1);
 781   IO.enumCase(Value, "MIPS2", 2);
 782   IO.enumCase(Value, "MIPS3", 3);
 783   IO.enumCase(Value, "MIPS4", 4);
 784   IO.enumCase(Value, "MIPS5", 5);
 785   IO.enumCase(Value, "MIPS32", 32);
 786   IO.enumCase(Value, "MIPS64", 64);
 787 }
 788
 789 void ScalarBitSetTraits<ELFYAML::MIPS_AFL_ASE>::bitset(
 790     IO &IO, ELFYAML::MIPS_AFL_ASE &Value) {
 791 #define BCase(X) IO.bitSetCase(Value, #X, Mips::AFL_ASE_##X)
 792   BCase(DSP);
 793   BCase(DSPR2);
 794   BCase(EVA);
 795   BCase(MCU);
 796   BCase(MDMX);
 797   BCase(MIPS3D);
 798   BCase(MT);
 799   BCase(SMARTMIPS);
 800   BCase(VIRT);
 801   BCase(MSA);
 802   BCase(MIPS16);
 803   BCase(MICROMIPS);
 804   BCase(XPA);
 805 #undef BCase
 806 }
 807
 808 void ScalarBitSetTraits<ELFYAML::MIPS_AFL_FLAGS1>::bitset(
 809     IO &IO, ELFYAML::MIPS_AFL_FLAGS1 &Value) {
 810 #define BCase(X) IO.bitSetCase(Value, #X, Mips::AFL_FLAGS1_##X)
 811   BCase(ODDSPREG);
 812 #undef BCase
 813 }
 814
 815 void MappingTraits<ELFYAML::FileHeader>::mapping(IO &IO,
 816                                                  ELFYAML::FileHeader &FileHdr) {
 817   IO.mapRequired("Class", FileHdr.Class);
 818   IO.mapRequired("Data", FileHdr.Data);
 819   IO.mapOptional("OSABI", FileHdr.OSABI, ELFYAML::ELF_ELFOSABI(0));
 820   IO.mapOptional("ABIVersion", FileHdr.ABIVersion, Hex8(0));
 821   IO.mapRequired("Type", FileHdr.Type);
 822   IO.mapRequired("Machine", FileHdr.Machine);
 823   IO.mapOptional("Flags", FileHdr.Flags, ELFYAML::ELF_EF(0));
 824   IO.mapOptional("Entry", FileHdr.Entry, Hex64(0));
 825
 826   IO.mapOptional("SHEntSize", FileHdr.SHEntSize);
 827   IO.mapOptional("SHOff", FileHdr.SHOff);
 828   IO.mapOptional("SHNum", FileHdr.SHNum);
 829   IO.mapOptional("SHStrNdx", FileHdr.SHStrNdx);
 830 }
 831
 832 void MappingTraits<ELFYAML::ProgramHeader>::mapping(
 833     IO &IO, ELFYAML::ProgramHeader &Phdr) {
 834   IO.mapRequired("Type", Phdr.Type);
 835   IO.mapOptional("Flags", Phdr.Flags, ELFYAML::ELF_PF(0));
 836   IO.mapOptional("Sections", Phdr.Sections);
 837   IO.mapOptional("VAddr", Phdr.VAddr, Hex64(0));
 838   IO.mapOptional("PAddr", Phdr.PAddr, Hex64(0));
 839   IO.mapOptional("Align", Phdr.Align);
 840   IO.mapOptional("FileSize", Phdr.FileSize);
 841   IO.mapOptional("MemSize", Phdr.MemSize);
 842   IO.mapOptional("Offset", Phdr.Offset);
 843 }
 844
 845 LLVM_YAML_STRONG_TYPEDEF(StringRef, StOtherPiece)
 846
 847 template <> struct ScalarTraits<StOtherPiece> {
 848   static void output(const StOtherPiece &Val, void *, raw_ostream &Out) {
 849     Out << Val;
 850   }
 851   static StringRef input(StringRef Scalar, void *, StOtherPiece &Val) {
 852     Val = Scalar;
 853     return {};
 854   }
 855   static QuotingType mustQuote(StringRef) { return QuotingType::None; }
 856 };
 857 template <> struct SequenceElementTraits<StOtherPiece> {
 858   static const bool flow = true;
 859 };
 860
 861 namespace {
 862
 863 struct NormalizedOther {
 864   NormalizedOther(IO &IO) : YamlIO(IO) {}
 865   NormalizedOther(IO &IO, Optional<uint8_t> Original) : YamlIO(IO) {
 866     assert(Original && "This constructor is only used for outputting YAML and "
 867                        "assumes a non-empty Original");
 868     std::vector<StOtherPiece> Ret;
 869     const auto *Object = static_cast<ELFYAML::Object *>(YamlIO.getContext());
 870     for (std::pair<StringRef, uint8_t> &P :
 871          getFlags(Object->Header.Machine).takeVector()) {
 872       uint8_t FlagValue = P.second;
 873       if ((*Original & FlagValue) != FlagValue)
 874         continue;
 875       *Original &= ~FlagValue;
 876       Ret.push_back({P.first});
 877     }
 878
 879     if (*Original != 0) {
 880       UnknownFlagsHolder = std::to_string(*Original);
 881       Ret.push_back({UnknownFlagsHolder});
 882     }
 883
 884     if (!Ret.empty())
 885       Other = std::move(Ret);
 886   }
 887
 888   uint8_t toValue(StringRef Name) {
 889     const auto *Object = static_cast<ELFYAML::Object *>(YamlIO.getContext());
 890     MapVector<StringRef, uint8_t> Flags = getFlags(Object->Header.Machine);
 891
 892     auto It = Flags.find(Name);
 893     if (It != Flags.end())
 894       return It->second;
 895
 896     uint8_t Val;
 897     if (to_integer(Name, Val))
 898       return Val;
 899
 900     YamlIO.setError("an unknown value is used for symbol's 'Other' field: " +
 901                     Name);
 902     return 0;
 903   }
 904
 905   Optional<uint8_t> denormalize(IO &) {
 906     if (!Other)
 907       return None;
 908     uint8_t Ret = 0;
 909     for (StOtherPiece &Val : *Other)
 910       Ret |= toValue(Val);
 911     return Ret;
 912   }
 913
 914   // st_other field is used to encode symbol visibility and platform-dependent
 915   // flags and values. This method returns a name to value map that is used for
 916   // parsing and encoding this field.
 917   MapVector<StringRef, uint8_t> getFlags(unsigned EMachine) {
 918     MapVector<StringRef, uint8_t> Map;
 919     // STV_* values are just enumeration values. We add them in a reversed order
 920     // because when we convert the st_other to named constants when printing
 921     // YAML we want to use a maximum number of bits on each step:
 922     // when we have st_other == 3, we want to print it as STV_PROTECTED (3), but
 923     // not as STV_HIDDEN (2) + STV_INTERNAL (1).
 924     Map["STV_PROTECTED"] = ELF::STV_PROTECTED;
 925     Map["STV_HIDDEN"] = ELF::STV_HIDDEN;
 926     Map["STV_INTERNAL"] = ELF::STV_INTERNAL;
 927     // STV_DEFAULT is used to represent the default visibility and has a value
 928     // 0. We want to be able to read it from YAML documents, but there is no
 929     // reason to print it.
 930     if (!YamlIO.outputting())
 931       Map["STV_DEFAULT"] = ELF::STV_DEFAULT;
 932
 933     // MIPS is not consistent. All of the STO_MIPS_* values are bit flags,
 934     // except STO_MIPS_MIPS16 which overlaps them. It should be checked and
 935     // consumed first when we print the output, because we do not want to print
 936     // any other flags that have the same bits instead.
 937     if (EMachine == ELF::EM_MIPS) {
 938       Map["STO_MIPS_MIPS16"] = ELF::STO_MIPS_MIPS16;
 939       Map["STO_MIPS_MICROMIPS"] = ELF::STO_MIPS_MICROMIPS;
 940       Map["STO_MIPS_PIC"] = ELF::STO_MIPS_PIC;
 941       Map["STO_MIPS_PLT"] = ELF::STO_MIPS_PLT;
 942       Map["STO_MIPS_OPTIONAL"] = ELF::STO_MIPS_OPTIONAL;
 943     }
 944     return Map;
 945   }
 946
 947   IO &YamlIO;
 948   Optional<std::vector<StOtherPiece>> Other;
 949   std::string UnknownFlagsHolder;
 950 };
 951
 952 } // end anonymous namespace
 953
 954 void MappingTraits<ELFYAML::Symbol>::mapping(IO &IO, ELFYAML::Symbol &Symbol) {
 955   IO.mapOptional("Name", Symbol.Name, StringRef());
 956   IO.mapOptional("NameIndex", Symbol.NameIndex);
 957   IO.mapOptional("Type", Symbol.Type, ELFYAML::ELF_STT(0));
 958   IO.mapOptional("Section", Symbol.Section, StringRef());
 959   IO.mapOptional("Index", Symbol.Index);
 960   IO.mapOptional("Binding", Symbol.Binding, ELFYAML::ELF_STB(0));
 961   IO.mapOptional("Value", Symbol.Value, Hex64(0));
 962   IO.mapOptional("Size", Symbol.Size, Hex64(0));
 963
 964   // Symbol's Other field is a bit special. It is usually a field that
 965   // represents st_other and holds the symbol visibility. However, on some
 966   // platforms, it can contain bit fields and regular values, or even sometimes a
 967   // crazy mix of them (see comments for NormalizedOther). Because of this, we
 968   // need special handling.
 969   MappingNormalization<NormalizedOther, Optional<uint8_t>> Keys(IO,
 970                                                                 Symbol.Other);
 971   IO.mapOptional("Other", Keys->Other);
 972 }
 973
 974 StringRef MappingTraits<ELFYAML::Symbol>::validate(IO &IO,
 975                                                    ELFYAML::Symbol &Symbol) {
 976   if (Symbol.Index && Symbol.Section.data())
 977     return "Index and Section cannot both be specified for Symbol";
 978   if (Symbol.NameIndex && !Symbol.Name.empty())
 979     return "Name and NameIndex cannot both be specified for Symbol";
 980   return StringRef();
 981 }
 982
 983 static void commonSectionMapping(IO &IO, ELFYAML::Section &Section) {
 984   IO.mapOptional("Name", Section.Name, StringRef());
 985   IO.mapRequired("Type", Section.Type);
 986   IO.mapOptional("Flags", Section.Flags);
 987   IO.mapOptional("Address", Section.Address, Hex64(0));
 988   IO.mapOptional("Link", Section.Link, StringRef());
 989   IO.mapOptional("AddressAlign", Section.AddressAlign, Hex64(0));
 990   IO.mapOptional("EntSize", Section.EntSize);
 991
 992   // obj2yaml does not dump these fields. They are expected to be empty when we
 993   // are producing YAML, because yaml2obj sets appropriate values for them
 994   // automatically when they are not explicitly defined.
 995   assert(!IO.outputting() ||
 996          (!Section.ShOffset.hasValue() && !Section.ShSize.hasValue()));
 997   IO.mapOptional("ShName", Section.ShName);
 998   IO.mapOptional("ShOffset", Section.ShOffset);
 999   IO.mapOptional("ShSize", Section.ShSize);
1000 }
1001
1002 static void sectionMapping(IO &IO, ELFYAML::DynamicSection &Section) {
1003   commonSectionMapping(IO, Section);
1004   IO.mapOptional("Entries", Section.Entries);
1005   IO.mapOptional("Content", Section.Content);
1006 }
1007
1008 static void sectionMapping(IO &IO, ELFYAML::RawContentSection &Section) {
1009   commonSectionMapping(IO, Section);
1010   IO.mapOptional("Content", Section.Content);
1011   IO.mapOptional("Size", Section.Size);
1012   IO.mapOptional("Info", Section.Info);
1013 }
1014
1015 static void sectionMapping(IO &IO, ELFYAML::NoBitsSection &Section) {
1016   commonSectionMapping(IO, Section);
1017   IO.mapOptional("Size", Section.Size, Hex64(0));
1018 }
1019
1020 static void sectionMapping(IO &IO, ELFYAML::VerdefSection &Section) {
1021   commonSectionMapping(IO, Section);
1022   IO.mapRequired("Info", Section.Info);
1023   IO.mapRequired("Entries", Section.Entries);
1024 }
1025
1026 static void sectionMapping(IO &IO, ELFYAML::SymverSection &Section) {
1027   commonSectionMapping(IO, Section);
1028   IO.mapRequired("Entries", Section.Entries);
1029 }
1030
1031 static void sectionMapping(IO &IO, ELFYAML::VerneedSection &Section) {
1032   commonSectionMapping(IO, Section);
1033   IO.mapRequired("Info", Section.Info);
1034   IO.mapRequired("Dependencies", Section.VerneedV);
1035 }
1036
1037 static void sectionMapping(IO &IO, ELFYAML::RelocationSection &Section) {
1038   commonSectionMapping(IO, Section);
1039   IO.mapOptional("Info", Section.RelocatableSec, StringRef());
1040   IO.mapOptional("Relocations", Section.Relocations);
1041 }
1042
1043 static void groupSectionMapping(IO &IO, ELFYAML::Group &Group) {
1044   commonSectionMapping(IO, Group);
1045   IO.mapOptional("Info", Group.Signature, StringRef());
1046   IO.mapRequired("Members", Group.Members);
1047 }
1048
1049 static void sectionMapping(IO &IO, ELFYAML::SymtabShndxSection &Section) {
1050   commonSectionMapping(IO, Section);
1051   IO.mapRequired("Entries", Section.Entries);
1052 }
1053
1054 void MappingTraits<ELFYAML::SectionOrType>::mapping(
1055     IO &IO, ELFYAML::SectionOrType &sectionOrType) {
1056   IO.mapRequired("SectionOrType", sectionOrType.sectionNameOrType);
1057 }
1058
1059 void MappingTraits<ELFYAML::SectionName>::mapping(
1060     IO &IO, ELFYAML::SectionName &sectionName) {
1061   IO.mapRequired("Section", sectionName.Section);
1062 }
1063
1064 static void sectionMapping(IO &IO, ELFYAML::MipsABIFlags &Section) {
1065   commonSectionMapping(IO, Section);
1066   IO.mapOptional("Version", Section.Version, Hex16(0));
1067   IO.mapRequired("ISA", Section.ISALevel);
1068   IO.mapOptional("ISARevision", Section.ISARevision, Hex8(0));
1069   IO.mapOptional("ISAExtension", Section.ISAExtension,
1070                  ELFYAML::MIPS_AFL_EXT(Mips::AFL_EXT_NONE));
1071   IO.mapOptional("ASEs", Section.ASEs, ELFYAML::MIPS_AFL_ASE(0));
1072   IO.mapOptional("FpABI", Section.FpABI,
1073                  ELFYAML::MIPS_ABI_FP(Mips::Val_GNU_MIPS_ABI_FP_ANY));
1074   IO.mapOptional("GPRSize", Section.GPRSize,
1075                  ELFYAML::MIPS_AFL_REG(Mips::AFL_REG_NONE));
1076   IO.mapOptional("CPR1Size", Section.CPR1Size,
1077                  ELFYAML::MIPS_AFL_REG(Mips::AFL_REG_NONE));
1078   IO.mapOptional("CPR2Size", Section.CPR2Size,
1079                  ELFYAML::MIPS_AFL_REG(Mips::AFL_REG_NONE));
1080   IO.mapOptional("Flags1", Section.Flags1, ELFYAML::MIPS_AFL_FLAGS1(0));
1081   IO.mapOptional("Flags2", Section.Flags2, Hex32(0));
1082 }
1083
1084 void MappingTraits<std::unique_ptr<ELFYAML::Section>>::mapping(
1085     IO &IO, std::unique_ptr<ELFYAML::Section> &Section) {
1086   ELFYAML::ELF_SHT sectionType;
1087   if (IO.outputting())
1088     sectionType = Section->Type;
1089   else
1090     IO.mapRequired("Type", sectionType);
1091
1092   switch (sectionType) {
1093   case ELF::SHT_DYNAMIC:
1094     if (!IO.outputting())
1095       Section.reset(new ELFYAML::DynamicSection());
1096     sectionMapping(IO, *cast<ELFYAML::DynamicSection>(Section.get()));
1097     break;
1098   case ELF::SHT_REL:
1099   case ELF::SHT_RELA:
1100     if (!IO.outputting())
1101       Section.reset(new ELFYAML::RelocationSection());
1102     sectionMapping(IO, *cast<ELFYAML::RelocationSection>(Section.get()));
1103     break;
1104   case ELF::SHT_GROUP:
1105     if (!IO.outputting())
1106       Section.reset(new ELFYAML::Group());
1107     groupSectionMapping(IO, *cast<ELFYAML::Group>(Section.get()));
1108     break;
1109   case ELF::SHT_NOBITS:
1110     if (!IO.outputting())
1111       Section.reset(new ELFYAML::NoBitsSection());
1112     sectionMapping(IO, *cast<ELFYAML::NoBitsSection>(Section.get()));
1113     break;
1114   case ELF::SHT_MIPS_ABIFLAGS:
1115     if (!IO.outputting())
1116       Section.reset(new ELFYAML::MipsABIFlags());
1117     sectionMapping(IO, *cast<ELFYAML::MipsABIFlags>(Section.get()));
1118     break;
1119   case ELF::SHT_GNU_verdef:
1120     if (!IO.outputting())
1121       Section.reset(new ELFYAML::VerdefSection());
1122     sectionMapping(IO, *cast<ELFYAML::VerdefSection>(Section.get()));
1123     break;
1124   case ELF::SHT_GNU_versym:
1125     if (!IO.outputting())
1126       Section.reset(new ELFYAML::SymverSection());
1127     sectionMapping(IO, *cast<ELFYAML::SymverSection>(Section.get()));
1128     break;
1129   case ELF::SHT_GNU_verneed:
1130     if (!IO.outputting())
1131       Section.reset(new ELFYAML::VerneedSection());
1132     sectionMapping(IO, *cast<ELFYAML::VerneedSection>(Section.get()));
1133     break;
1134   case ELF::SHT_SYMTAB_SHNDX:
1135     if (!IO.outputting())
1136       Section.reset(new ELFYAML::SymtabShndxSection());
1137     sectionMapping(IO, *cast<ELFYAML::SymtabShndxSection>(Section.get()));
1138     break;
1139   default:
1140     if (!IO.outputting())
1141       Section.reset(new ELFYAML::RawContentSection());
1142     sectionMapping(IO, *cast<ELFYAML::RawContentSection>(Section.get()));
1143   }
1144 }
1145
1146 StringRef MappingTraits<std::unique_ptr<ELFYAML::Section>>::validate(
1147     IO &io, std::unique_ptr<ELFYAML::Section> &Section) {
1148   const auto *RawSection = dyn_cast<ELFYAML::RawContentSection>(Section.get());
1149   if (!RawSection)
1150     return {};
1151   if (RawSection->Size && RawSection->Content &&
1152       (uint64_t)(*RawSection->Size) < RawSection->Content->binary_size())
1153     return "Section size must be greater than or equal to the content size";
1154   return {};
1155 }
1156
1157 namespace {
1158
1159 struct NormalizedMips64RelType {
1160   NormalizedMips64RelType(IO &)
1161       : Type(ELFYAML::ELF_REL(ELF::R_MIPS_NONE)),
1162         Type2(ELFYAML::ELF_REL(ELF::R_MIPS_NONE)),
1163         Type3(ELFYAML::ELF_REL(ELF::R_MIPS_NONE)),
1164         SpecSym(ELFYAML::ELF_REL(ELF::RSS_UNDEF)) {}
1165   NormalizedMips64RelType(IO &, ELFYAML::ELF_REL Original)
1166       : Type(Original & 0xFF), Type2(Original >> 8 & 0xFF),
1167         Type3(Original >> 16 & 0xFF), SpecSym(Original >> 24 & 0xFF) {}
1168
1169   ELFYAML::ELF_REL denormalize(IO &) {
1170     ELFYAML::ELF_REL Res = Type | Type2 << 8 | Type3 << 16 | SpecSym << 24;
1171     return Res;
1172   }
1173
1174   ELFYAML::ELF_REL Type;
1175   ELFYAML::ELF_REL Type2;
1176   ELFYAML::ELF_REL Type3;
1177   ELFYAML::ELF_RSS SpecSym;
1178 };
1179
1180 } // end anonymous namespace
1181
1182 void MappingTraits<ELFYAML::DynamicEntry>::mapping(IO &IO,
1183                                                    ELFYAML::DynamicEntry &Rel) {
1184   assert(IO.getContext() && "The IO context is not initialized");
1185
1186   IO.mapRequired("Tag", Rel.Tag);
1187   IO.mapRequired("Value", Rel.Val);
1188 }
1189
1190 void MappingTraits<ELFYAML::VerdefEntry>::mapping(IO &IO,
1191                                                   ELFYAML::VerdefEntry &E) {
1192   assert(IO.getContext() && "The IO context is not initialized");
1193
1194   IO.mapRequired("Version", E.Version);
1195   IO.mapRequired("Flags", E.Flags);
1196   IO.mapRequired("VersionNdx", E.VersionNdx);
1197   IO.mapRequired("Hash", E.Hash);
1198   IO.mapRequired("Names", E.VerNames);
1199 }
1200
1201 void MappingTraits<ELFYAML::VerneedEntry>::mapping(IO &IO,
1202                                                    ELFYAML::VerneedEntry &E) {
1203   assert(IO.getContext() && "The IO context is not initialized");
1204
1205   IO.mapRequired("Version", E.Version);
1206   IO.mapRequired("File", E.File);
1207   IO.mapRequired("Entries", E.AuxV);
1208 }
1209
1210 void MappingTraits<ELFYAML::VernauxEntry>::mapping(IO &IO,
1211                                                    ELFYAML::VernauxEntry &E) {
1212   assert(IO.getContext() && "The IO context is not initialized");
1213
1214   IO.mapRequired("Name", E.Name);
1215   IO.mapRequired("Hash", E.Hash);
1216   IO.mapRequired("Flags", E.Flags);
1217   IO.mapRequired("Other", E.Other);
1218 }
1219
1220 void MappingTraits<ELFYAML::Relocation>::mapping(IO &IO,
1221                                                  ELFYAML::Relocation &Rel) {
1222   const auto *Object = static_cast<ELFYAML::Object *>(IO.getContext());
1223   assert(Object && "The IO context is not initialized");
1224
1225   IO.mapRequired("Offset", Rel.Offset);
1226   IO.mapOptional("Symbol", Rel.Symbol);
1227
1228   if (Object->Header.Machine == ELFYAML::ELF_EM(ELF::EM_MIPS) &&
1229       Object->Header.Class == ELFYAML::ELF_ELFCLASS(ELF::ELFCLASS64)) {
1230     MappingNormalization<NormalizedMips64RelType, ELFYAML::ELF_REL> Key(
1231         IO, Rel.Type);
1232     IO.mapRequired("Type", Key->Type);
1233     IO.mapOptional("Type2", Key->Type2, ELFYAML::ELF_REL(ELF::R_MIPS_NONE));
1234     IO.mapOptional("Type3", Key->Type3, ELFYAML::ELF_REL(ELF::R_MIPS_NONE));
1235     IO.mapOptional("SpecSym", Key->SpecSym, ELFYAML::ELF_RSS(ELF::RSS_UNDEF));
1236   } else
1237     IO.mapRequired("Type", Rel.Type);
1238
1239   IO.mapOptional("Addend", Rel.Addend, (int64_t)0);
1240 }
1241
1242 void MappingTraits<ELFYAML::Object>::mapping(IO &IO, ELFYAML::Object &Object) {
1243   assert(!IO.getContext() && "The IO context is initialized already");
1244   IO.setContext(&Object);
1245   IO.mapTag("!ELF", true);
1246   IO.mapRequired("FileHeader", Object.Header);
1247   IO.mapOptional("ProgramHeaders", Object.ProgramHeaders);
1248   IO.mapOptional("Sections", Object.Sections);
1249   IO.mapOptional("Symbols", Object.Symbols);
1250   IO.mapOptional("DynamicSymbols", Object.DynamicSymbols);
1251   IO.setContext(nullptr);
1252 }
1253
1254 LLVM_YAML_STRONG_TYPEDEF(uint8_t, MIPS_AFL_REG)
1255 LLVM_YAML_STRONG_TYPEDEF(uint8_t, MIPS_ABI_FP)
1256 LLVM_YAML_STRONG_TYPEDEF(uint32_t, MIPS_AFL_EXT)
1257 LLVM_YAML_STRONG_TYPEDEF(uint32_t, MIPS_AFL_ASE)
1258 LLVM_YAML_STRONG_TYPEDEF(uint32_t, MIPS_AFL_FLAGS1)
1259
1260 } // end namespace yaml
1261
1262 } // end namespace llvm