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   IO.enumFallback<Hex16>(Value);
 225 }
 226
 227 void ScalarEnumerationTraits<ELFYAML::ELF_ELFCLASS>::enumeration(
 228     IO &IO, ELFYAML::ELF_ELFCLASS &Value) {
 229 #define ECase(X) IO.enumCase(Value, #X, ELF::X)
 230   // Since the semantics of ELFCLASSNONE is "invalid", just don't accept it
 231   // here.
 232   ECase(ELFCLASS32);
 233   ECase(ELFCLASS64);
 234 #undef ECase
 235 }
 236
 237 void ScalarEnumerationTraits<ELFYAML::ELF_ELFDATA>::enumeration(
 238     IO &IO, ELFYAML::ELF_ELFDATA &Value) {
 239 #define ECase(X) IO.enumCase(Value, #X, ELF::X)
 240   // ELFDATANONE is an invalid data encoding, but we accept it because
 241   // we want to be able to produce invalid binaries for the tests.
 242   ECase(ELFDATANONE);
 243   ECase(ELFDATA2LSB);
 244   ECase(ELFDATA2MSB);
 245 #undef ECase
 246 }
 247
 248 void ScalarEnumerationTraits<ELFYAML::ELF_ELFOSABI>::enumeration(
 249     IO &IO, ELFYAML::ELF_ELFOSABI &Value) {
 250 #define ECase(X) IO.enumCase(Value, #X, ELF::X)
 251   ECase(ELFOSABI_NONE);
 252   ECase(ELFOSABI_HPUX);
 253   ECase(ELFOSABI_NETBSD);
 254   ECase(ELFOSABI_GNU);
 255   ECase(ELFOSABI_HURD);
 256   ECase(ELFOSABI_SOLARIS);
 257   ECase(ELFOSABI_AIX);
 258   ECase(ELFOSABI_IRIX);
 259   ECase(ELFOSABI_FREEBSD);
 260   ECase(ELFOSABI_TRU64);
 261   ECase(ELFOSABI_MODESTO);
 262   ECase(ELFOSABI_OPENBSD);
 263   ECase(ELFOSABI_OPENVMS);
 264   ECase(ELFOSABI_NSK);
 265   ECase(ELFOSABI_AROS);
 266   ECase(ELFOSABI_FENIXOS);
 267   ECase(ELFOSABI_CLOUDABI);
 268   ECase(ELFOSABI_AMDGPU_HSA);
 269   ECase(ELFOSABI_AMDGPU_PAL);
 270   ECase(ELFOSABI_AMDGPU_MESA3D);
 271   ECase(ELFOSABI_ARM);
 272   ECase(ELFOSABI_C6000_ELFABI);
 273   ECase(ELFOSABI_C6000_LINUX);
 274   ECase(ELFOSABI_STANDALONE);
 275 #undef ECase
 276 }
 277
 278 void ScalarBitSetTraits<ELFYAML::ELF_EF>::bitset(IO &IO,
 279                                                  ELFYAML::ELF_EF &Value) {
 280   const auto *Object = static_cast<ELFYAML::Object *>(IO.getContext());
 281   assert(Object && "The IO context is not initialized");
 282 #define BCase(X) IO.bitSetCase(Value, #X, ELF::X)
 283 #define BCaseMask(X, M) IO.maskedBitSetCase(Value, #X, ELF::X, ELF::M)
 284   switch (Object->Header.Machine) {
 285   case ELF::EM_ARM:
 286     BCase(EF_ARM_SOFT_FLOAT);
 287     BCase(EF_ARM_VFP_FLOAT);
 288     BCaseMask(EF_ARM_EABI_UNKNOWN, EF_ARM_EABIMASK);
 289     BCaseMask(EF_ARM_EABI_VER1, EF_ARM_EABIMASK);
 290     BCaseMask(EF_ARM_EABI_VER2, EF_ARM_EABIMASK);
 291     BCaseMask(EF_ARM_EABI_VER3, EF_ARM_EABIMASK);
 292     BCaseMask(EF_ARM_EABI_VER4, EF_ARM_EABIMASK);
 293     BCaseMask(EF_ARM_EABI_VER5, EF_ARM_EABIMASK);
 294     break;
 295   case ELF::EM_MIPS:
 296     BCase(EF_MIPS_NOREORDER);
 297     BCase(EF_MIPS_PIC);
 298     BCase(EF_MIPS_CPIC);
 299     BCase(EF_MIPS_ABI2);
 300     BCase(EF_MIPS_32BITMODE);
 301     BCase(EF_MIPS_FP64);
 302     BCase(EF_MIPS_NAN2008);
 303     BCase(EF_MIPS_MICROMIPS);
 304     BCase(EF_MIPS_ARCH_ASE_M16);
 305     BCase(EF_MIPS_ARCH_ASE_MDMX);
 306     BCaseMask(EF_MIPS_ABI_O32, EF_MIPS_ABI);
 307     BCaseMask(EF_MIPS_ABI_O64, EF_MIPS_ABI);
 308     BCaseMask(EF_MIPS_ABI_EABI32, EF_MIPS_ABI);
 309     BCaseMask(EF_MIPS_ABI_EABI64, EF_MIPS_ABI);
 310     BCaseMask(EF_MIPS_MACH_3900, EF_MIPS_MACH);
 311     BCaseMask(EF_MIPS_MACH_4010, EF_MIPS_MACH);
 312     BCaseMask(EF_MIPS_MACH_4100, EF_MIPS_MACH);
 313     BCaseMask(EF_MIPS_MACH_4650, EF_MIPS_MACH);
 314     BCaseMask(EF_MIPS_MACH_4120, EF_MIPS_MACH);
 315     BCaseMask(EF_MIPS_MACH_4111, EF_MIPS_MACH);
 316     BCaseMask(EF_MIPS_MACH_SB1, EF_MIPS_MACH);
 317     BCaseMask(EF_MIPS_MACH_OCTEON, EF_MIPS_MACH);
 318     BCaseMask(EF_MIPS_MACH_XLR, EF_MIPS_MACH);
 319     BCaseMask(EF_MIPS_MACH_OCTEON2, EF_MIPS_MACH);
 320     BCaseMask(EF_MIPS_MACH_OCTEON3, EF_MIPS_MACH);
 321     BCaseMask(EF_MIPS_MACH_5400, EF_MIPS_MACH);
 322     BCaseMask(EF_MIPS_MACH_5900, EF_MIPS_MACH);
 323     BCaseMask(EF_MIPS_MACH_5500, EF_MIPS_MACH);
 324     BCaseMask(EF_MIPS_MACH_9000, EF_MIPS_MACH);
 325     BCaseMask(EF_MIPS_MACH_LS2E, EF_MIPS_MACH);
 326     BCaseMask(EF_MIPS_MACH_LS2F, EF_MIPS_MACH);
 327     BCaseMask(EF_MIPS_MACH_LS3A, EF_MIPS_MACH);
 328     BCaseMask(EF_MIPS_ARCH_1, EF_MIPS_ARCH);
 329     BCaseMask(EF_MIPS_ARCH_2, EF_MIPS_ARCH);
 330     BCaseMask(EF_MIPS_ARCH_3, EF_MIPS_ARCH);
 331     BCaseMask(EF_MIPS_ARCH_4, EF_MIPS_ARCH);
 332     BCaseMask(EF_MIPS_ARCH_5, EF_MIPS_ARCH);
 333     BCaseMask(EF_MIPS_ARCH_32, EF_MIPS_ARCH);
 334     BCaseMask(EF_MIPS_ARCH_64, EF_MIPS_ARCH);
 335     BCaseMask(EF_MIPS_ARCH_32R2, EF_MIPS_ARCH);
 336     BCaseMask(EF_MIPS_ARCH_64R2, EF_MIPS_ARCH);
 337     BCaseMask(EF_MIPS_ARCH_32R6, EF_MIPS_ARCH);
 338     BCaseMask(EF_MIPS_ARCH_64R6, EF_MIPS_ARCH);
 339     break;
 340   case ELF::EM_HEXAGON:
 341     BCase(EF_HEXAGON_MACH_V2);
 342     BCase(EF_HEXAGON_MACH_V3);
 343     BCase(EF_HEXAGON_MACH_V4);
 344     BCase(EF_HEXAGON_MACH_V5);
 345     BCase(EF_HEXAGON_MACH_V55);
 346     BCase(EF_HEXAGON_MACH_V60);
 347     BCase(EF_HEXAGON_MACH_V62);
 348     BCase(EF_HEXAGON_MACH_V65);
 349     BCase(EF_HEXAGON_ISA_V2);
 350     BCase(EF_HEXAGON_ISA_V3);
 351     BCase(EF_HEXAGON_ISA_V4);
 352     BCase(EF_HEXAGON_ISA_V5);
 353     BCase(EF_HEXAGON_ISA_V55);
 354     BCase(EF_HEXAGON_ISA_V60);
 355     BCase(EF_HEXAGON_ISA_V62);
 356     BCase(EF_HEXAGON_ISA_V65);
 357     break;
 358   case ELF::EM_AVR:
 359     BCase(EF_AVR_ARCH_AVR1);
 360     BCase(EF_AVR_ARCH_AVR2);
 361     BCase(EF_AVR_ARCH_AVR25);
 362     BCase(EF_AVR_ARCH_AVR3);
 363     BCase(EF_AVR_ARCH_AVR31);
 364     BCase(EF_AVR_ARCH_AVR35);
 365     BCase(EF_AVR_ARCH_AVR4);
 366     BCase(EF_AVR_ARCH_AVR51);
 367     BCase(EF_AVR_ARCH_AVR6);
 368     BCase(EF_AVR_ARCH_AVRTINY);
 369     BCase(EF_AVR_ARCH_XMEGA1);
 370     BCase(EF_AVR_ARCH_XMEGA2);
 371     BCase(EF_AVR_ARCH_XMEGA3);
 372     BCase(EF_AVR_ARCH_XMEGA4);
 373     BCase(EF_AVR_ARCH_XMEGA5);
 374     BCase(EF_AVR_ARCH_XMEGA6);
 375     BCase(EF_AVR_ARCH_XMEGA7);
 376     break;
 377   case ELF::EM_RISCV:
 378     BCase(EF_RISCV_RVC);
 379     BCaseMask(EF_RISCV_FLOAT_ABI_SOFT, EF_RISCV_FLOAT_ABI);
 380     BCaseMask(EF_RISCV_FLOAT_ABI_SINGLE, EF_RISCV_FLOAT_ABI);
 381     BCaseMask(EF_RISCV_FLOAT_ABI_DOUBLE, EF_RISCV_FLOAT_ABI);
 382     BCaseMask(EF_RISCV_FLOAT_ABI_QUAD, EF_RISCV_FLOAT_ABI);
 383     BCase(EF_RISCV_RVE);
 384     break;
 385   case ELF::EM_AMDGPU:
 386     BCaseMask(EF_AMDGPU_MACH_NONE, EF_AMDGPU_MACH);
 387     BCaseMask(EF_AMDGPU_MACH_R600_R600, EF_AMDGPU_MACH);
 388     BCaseMask(EF_AMDGPU_MACH_R600_R630, EF_AMDGPU_MACH);
 389     BCaseMask(EF_AMDGPU_MACH_R600_RS880, EF_AMDGPU_MACH);
 390     BCaseMask(EF_AMDGPU_MACH_R600_RV670, EF_AMDGPU_MACH);
 391     BCaseMask(EF_AMDGPU_MACH_R600_RV710, EF_AMDGPU_MACH);
 392     BCaseMask(EF_AMDGPU_MACH_R600_RV730, EF_AMDGPU_MACH);
 393     BCaseMask(EF_AMDGPU_MACH_R600_RV770, EF_AMDGPU_MACH);
 394     BCaseMask(EF_AMDGPU_MACH_R600_CEDAR, EF_AMDGPU_MACH);
 395     BCaseMask(EF_AMDGPU_MACH_R600_CYPRESS, EF_AMDGPU_MACH);
 396     BCaseMask(EF_AMDGPU_MACH_R600_JUNIPER, EF_AMDGPU_MACH);
 397     BCaseMask(EF_AMDGPU_MACH_R600_REDWOOD, EF_AMDGPU_MACH);
 398     BCaseMask(EF_AMDGPU_MACH_R600_SUMO, EF_AMDGPU_MACH);
 399     BCaseMask(EF_AMDGPU_MACH_R600_BARTS, EF_AMDGPU_MACH);
 400     BCaseMask(EF_AMDGPU_MACH_R600_CAICOS, EF_AMDGPU_MACH);
 401     BCaseMask(EF_AMDGPU_MACH_R600_CAYMAN, EF_AMDGPU_MACH);
 402     BCaseMask(EF_AMDGPU_MACH_R600_TURKS, EF_AMDGPU_MACH);
 403     BCaseMask(EF_AMDGPU_MACH_AMDGCN_GFX600, EF_AMDGPU_MACH);
 404     BCaseMask(EF_AMDGPU_MACH_AMDGCN_GFX601, EF_AMDGPU_MACH);
 405     BCaseMask(EF_AMDGPU_MACH_AMDGCN_GFX700, EF_AMDGPU_MACH);
 406     BCaseMask(EF_AMDGPU_MACH_AMDGCN_GFX701, EF_AMDGPU_MACH);
 407     BCaseMask(EF_AMDGPU_MACH_AMDGCN_GFX702, EF_AMDGPU_MACH);
 408     BCaseMask(EF_AMDGPU_MACH_AMDGCN_GFX703, EF_AMDGPU_MACH);
 409     BCaseMask(EF_AMDGPU_MACH_AMDGCN_GFX704, EF_AMDGPU_MACH);
 410     BCaseMask(EF_AMDGPU_MACH_AMDGCN_GFX801, EF_AMDGPU_MACH);
 411     BCaseMask(EF_AMDGPU_MACH_AMDGCN_GFX802, EF_AMDGPU_MACH);
 412     BCaseMask(EF_AMDGPU_MACH_AMDGCN_GFX803, EF_AMDGPU_MACH);
 413     BCaseMask(EF_AMDGPU_MACH_AMDGCN_GFX810, EF_AMDGPU_MACH);
 414     BCaseMask(EF_AMDGPU_MACH_AMDGCN_GFX900, EF_AMDGPU_MACH);
 415     BCaseMask(EF_AMDGPU_MACH_AMDGCN_GFX902, EF_AMDGPU_MACH);
 416     BCaseMask(EF_AMDGPU_MACH_AMDGCN_GFX904, EF_AMDGPU_MACH);
 417     BCaseMask(EF_AMDGPU_MACH_AMDGCN_GFX906, EF_AMDGPU_MACH);
 418     BCaseMask(EF_AMDGPU_MACH_AMDGCN_GFX908, EF_AMDGPU_MACH);
 419     BCaseMask(EF_AMDGPU_MACH_AMDGCN_GFX909, EF_AMDGPU_MACH);
 420     BCaseMask(EF_AMDGPU_MACH_AMDGCN_GFX1010, EF_AMDGPU_MACH);
 421     BCaseMask(EF_AMDGPU_MACH_AMDGCN_GFX1011, EF_AMDGPU_MACH);
 422     BCaseMask(EF_AMDGPU_MACH_AMDGCN_GFX1012, EF_AMDGPU_MACH);
 423     BCase(EF_AMDGPU_XNACK);
 424     BCase(EF_AMDGPU_SRAM_ECC);
 425     break;
 426   case ELF::EM_X86_64:
 427     break;
 428   default:
 429     llvm_unreachable("Unsupported architecture");
 430   }
 431 #undef BCase
 432 #undef BCaseMask
 433 }
 434
 435 void ScalarEnumerationTraits<ELFYAML::ELF_SHT>::enumeration(
 436     IO &IO, ELFYAML::ELF_SHT &Value) {
 437   const auto *Object = static_cast<ELFYAML::Object *>(IO.getContext());
 438   assert(Object && "The IO context is not initialized");
 439 #define ECase(X) IO.enumCase(Value, #X, ELF::X)
 440   ECase(SHT_NULL);
 441   ECase(SHT_PROGBITS);
 442   ECase(SHT_SYMTAB);
 443   // FIXME: Issue a diagnostic with this information.
 444   ECase(SHT_STRTAB);
 445   ECase(SHT_RELA);
 446   ECase(SHT_HASH);
 447   ECase(SHT_DYNAMIC);
 448   ECase(SHT_NOTE);
 449   ECase(SHT_NOBITS);
 450   ECase(SHT_REL);
 451   ECase(SHT_SHLIB);
 452   ECase(SHT_DYNSYM);
 453   ECase(SHT_INIT_ARRAY);
 454   ECase(SHT_FINI_ARRAY);
 455   ECase(SHT_PREINIT_ARRAY);
 456   ECase(SHT_GROUP);
 457   ECase(SHT_SYMTAB_SHNDX);
 458   ECase(SHT_RELR);
 459   ECase(SHT_ANDROID_REL);
 460   ECase(SHT_ANDROID_RELA);
 461   ECase(SHT_ANDROID_RELR);
 462   ECase(SHT_LLVM_ODRTAB);
 463   ECase(SHT_LLVM_LINKER_OPTIONS);
 464   ECase(SHT_LLVM_CALL_GRAPH_PROFILE);
 465   ECase(SHT_LLVM_ADDRSIG);
 466   ECase(SHT_LLVM_DEPENDENT_LIBRARIES);
 467   ECase(SHT_LLVM_SYMPART);
 468   ECase(SHT_LLVM_PART_EHDR);
 469   ECase(SHT_LLVM_PART_PHDR);
 470   ECase(SHT_GNU_ATTRIBUTES);
 471   ECase(SHT_GNU_HASH);
 472   ECase(SHT_GNU_verdef);
 473   ECase(SHT_GNU_verneed);
 474   ECase(SHT_GNU_versym);
 475   switch (Object->Header.Machine) {
 476   case ELF::EM_ARM:
 477     ECase(SHT_ARM_EXIDX);
 478     ECase(SHT_ARM_PREEMPTMAP);
 479     ECase(SHT_ARM_ATTRIBUTES);
 480     ECase(SHT_ARM_DEBUGOVERLAY);
 481     ECase(SHT_ARM_OVERLAYSECTION);
 482     break;
 483   case ELF::EM_HEXAGON:
 484     ECase(SHT_HEX_ORDERED);
 485     break;
 486   case ELF::EM_X86_64:
 487     ECase(SHT_X86_64_UNWIND);
 488     break;
 489   case ELF::EM_MIPS:
 490     ECase(SHT_MIPS_REGINFO);
 491     ECase(SHT_MIPS_OPTIONS);
 492     ECase(SHT_MIPS_DWARF);
 493     ECase(SHT_MIPS_ABIFLAGS);
 494     break;
 495   default:
 496     // Nothing to do.
 497     break;
 498   }
 499 #undef ECase
 500   IO.enumFallback<Hex32>(Value);
 501 }
 502
 503 void ScalarBitSetTraits<ELFYAML::ELF_PF>::bitset(IO &IO,
 504                                                  ELFYAML::ELF_PF &Value) {
 505 #define BCase(X) IO.bitSetCase(Value, #X, ELF::X)
 506   BCase(PF_X);
 507   BCase(PF_W);
 508   BCase(PF_R);
 509 }
 510
 511 void ScalarBitSetTraits<ELFYAML::ELF_SHF>::bitset(IO &IO,
 512                                                   ELFYAML::ELF_SHF &Value) {
 513   const auto *Object = static_cast<ELFYAML::Object *>(IO.getContext());
 514 #define BCase(X) IO.bitSetCase(Value, #X, ELF::X)
 515   BCase(SHF_WRITE);
 516   BCase(SHF_ALLOC);
 517   BCase(SHF_EXCLUDE);
 518   BCase(SHF_EXECINSTR);
 519   BCase(SHF_MERGE);
 520   BCase(SHF_STRINGS);
 521   BCase(SHF_INFO_LINK);
 522   BCase(SHF_LINK_ORDER);
 523   BCase(SHF_OS_NONCONFORMING);
 524   BCase(SHF_GROUP);
 525   BCase(SHF_TLS);
 526   BCase(SHF_COMPRESSED);
 527   switch (Object->Header.Machine) {
 528   case ELF::EM_ARM:
 529     BCase(SHF_ARM_PURECODE);
 530     break;
 531   case ELF::EM_HEXAGON:
 532     BCase(SHF_HEX_GPREL);
 533     break;
 534   case ELF::EM_MIPS:
 535     BCase(SHF_MIPS_NODUPES);
 536     BCase(SHF_MIPS_NAMES);
 537     BCase(SHF_MIPS_LOCAL);
 538     BCase(SHF_MIPS_NOSTRIP);
 539     BCase(SHF_MIPS_GPREL);
 540     BCase(SHF_MIPS_MERGE);
 541     BCase(SHF_MIPS_ADDR);
 542     BCase(SHF_MIPS_STRING);
 543     break;
 544   case ELF::EM_X86_64:
 545     BCase(SHF_X86_64_LARGE);
 546     break;
 547   default:
 548     // Nothing to do.
 549     break;
 550   }
 551 #undef BCase
 552 }
 553
 554 void ScalarEnumerationTraits<ELFYAML::ELF_SHN>::enumeration(
 555     IO &IO, ELFYAML::ELF_SHN &Value) {
 556 #define ECase(X) IO.enumCase(Value, #X, ELF::X)
 557   ECase(SHN_UNDEF);
 558   ECase(SHN_LORESERVE);
 559   ECase(SHN_LOPROC);
 560   ECase(SHN_HIPROC);
 561   ECase(SHN_LOOS);
 562   ECase(SHN_HIOS);
 563   ECase(SHN_ABS);
 564   ECase(SHN_COMMON);
 565   ECase(SHN_XINDEX);
 566   ECase(SHN_HIRESERVE);
 567   ECase(SHN_AMDGPU_LDS);
 568   ECase(SHN_HEXAGON_SCOMMON);
 569   ECase(SHN_HEXAGON_SCOMMON_1);
 570   ECase(SHN_HEXAGON_SCOMMON_2);
 571   ECase(SHN_HEXAGON_SCOMMON_4);
 572   ECase(SHN_HEXAGON_SCOMMON_8);
 573 #undef ECase
 574   IO.enumFallback<Hex16>(Value);
 575 }
 576
 577 void ScalarEnumerationTraits<ELFYAML::ELF_STB>::enumeration(
 578     IO &IO, ELFYAML::ELF_STB &Value) {
 579 #define ECase(X) IO.enumCase(Value, #X, ELF::X)
 580   ECase(STB_LOCAL);
 581   ECase(STB_GLOBAL);
 582   ECase(STB_WEAK);
 583   ECase(STB_GNU_UNIQUE);
 584 #undef ECase
 585   IO.enumFallback<Hex8>(Value);
 586 }
 587
 588 void ScalarEnumerationTraits<ELFYAML::ELF_STT>::enumeration(
 589     IO &IO, ELFYAML::ELF_STT &Value) {
 590 #define ECase(X) IO.enumCase(Value, #X, ELF::X)
 591   ECase(STT_NOTYPE);
 592   ECase(STT_OBJECT);
 593   ECase(STT_FUNC);
 594   ECase(STT_SECTION);
 595   ECase(STT_FILE);
 596   ECase(STT_COMMON);
 597   ECase(STT_TLS);
 598   ECase(STT_GNU_IFUNC);
 599 #undef ECase
 600   IO.enumFallback<Hex8>(Value);
 601 }
 602
 603
 604 void ScalarEnumerationTraits<ELFYAML::ELF_RSS>::enumeration(
 605     IO &IO, ELFYAML::ELF_RSS &Value) {
 606 #define ECase(X) IO.enumCase(Value, #X, ELF::X)
 607   ECase(RSS_UNDEF);
 608   ECase(RSS_GP);
 609   ECase(RSS_GP0);
 610   ECase(RSS_LOC);
 611 #undef ECase
 612 }
 613
 614 void ScalarEnumerationTraits<ELFYAML::ELF_REL>::enumeration(
 615     IO &IO, ELFYAML::ELF_REL &Value) {
 616   const auto *Object = static_cast<ELFYAML::Object *>(IO.getContext());
 617   assert(Object && "The IO context is not initialized");
 618 #define ELF_RELOC(X, Y) IO.enumCase(Value, #X, ELF::X);
 619   switch (Object->Header.Machine) {
 620   case ELF::EM_X86_64:
 621 #include "llvm/BinaryFormat/ELFRelocs/x86_64.def"
 622     break;
 623   case ELF::EM_MIPS:
 624 #include "llvm/BinaryFormat/ELFRelocs/Mips.def"
 625     break;
 626   case ELF::EM_HEXAGON:
 627 #include "llvm/BinaryFormat/ELFRelocs/Hexagon.def"
 628     break;
 629   case ELF::EM_386:
 630   case ELF::EM_IAMCU:
 631 #include "llvm/BinaryFormat/ELFRelocs/i386.def"
 632     break;
 633   case ELF::EM_AARCH64:
 634 #include "llvm/BinaryFormat/ELFRelocs/AArch64.def"
 635     break;
 636   case ELF::EM_ARM:
 637 #include "llvm/BinaryFormat/ELFRelocs/ARM.def"
 638     break;
 639   case ELF::EM_ARC:
 640 #include "llvm/BinaryFormat/ELFRelocs/ARC.def"
 641     break;
 642   case ELF::EM_RISCV:
 643 #include "llvm/BinaryFormat/ELFRelocs/RISCV.def"
 644     break;
 645   case ELF::EM_LANAI:
 646 #include "llvm/BinaryFormat/ELFRelocs/Lanai.def"
 647     break;
 648   case ELF::EM_AMDGPU:
 649 #include "llvm/BinaryFormat/ELFRelocs/AMDGPU.def"
 650     break;
 651   case ELF::EM_BPF:
 652 #include "llvm/BinaryFormat/ELFRelocs/BPF.def"
 653     break;
 654   case ELF::EM_PPC64:
 655 #include "llvm/BinaryFormat/ELFRelocs/PowerPC64.def"
 656     break;
 657   default:
 658     llvm_unreachable("Unsupported architecture");
 659   }
 660 #undef ELF_RELOC
 661   IO.enumFallback<Hex32>(Value);
 662 }
 663
 664 void ScalarEnumerationTraits<ELFYAML::ELF_DYNTAG>::enumeration(
 665     IO &IO, ELFYAML::ELF_DYNTAG &Value) {
 666   const auto *Object = static_cast<ELFYAML::Object *>(IO.getContext());
 667   assert(Object && "The IO context is not initialized");
 668
 669 // Disable architecture specific tags by default. We might enable them below.
 670 #define AARCH64_DYNAMIC_TAG(name, value)
 671 #define MIPS_DYNAMIC_TAG(name, value)
 672 #define HEXAGON_DYNAMIC_TAG(name, value)
 673 #define PPC_DYNAMIC_TAG(name, value)
 674 #define PPC64_DYNAMIC_TAG(name, value)
 675 // Ignore marker tags such as DT_HIOS (maps to DT_VERNEEDNUM), etc.
 676 #define DYNAMIC_TAG_MARKER(name, value)
 677
 678 #define STRINGIFY(X) (#X)
 679 #define DYNAMIC_TAG(X, Y) IO.enumCase(Value, STRINGIFY(DT_##X), ELF::DT_##X);
 680   switch (Object->Header.Machine) {
 681   case ELF::EM_AARCH64:
 682 #undef AARCH64_DYNAMIC_TAG
 683 #define AARCH64_DYNAMIC_TAG(name, value) DYNAMIC_TAG(name, value)
 684 #include "llvm/BinaryFormat/DynamicTags.def"
 685 #undef AARCH64_DYNAMIC_TAG
 686 #define AARCH64_DYNAMIC_TAG(name, value)
 687     break;
 688   case ELF::EM_MIPS:
 689 #undef MIPS_DYNAMIC_TAG
 690 #define MIPS_DYNAMIC_TAG(name, value) DYNAMIC_TAG(name, value)
 691 #include "llvm/BinaryFormat/DynamicTags.def"
 692 #undef MIPS_DYNAMIC_TAG
 693 #define MIPS_DYNAMIC_TAG(name, value)
 694     break;
 695   case ELF::EM_HEXAGON:
 696 #undef HEXAGON_DYNAMIC_TAG
 697 #define HEXAGON_DYNAMIC_TAG(name, value) DYNAMIC_TAG(name, value)
 698 #include "llvm/BinaryFormat/DynamicTags.def"
 699 #undef HEXAGON_DYNAMIC_TAG
 700 #define HEXAGON_DYNAMIC_TAG(name, value)
 701     break;
 702   case ELF::EM_PPC:
 703 #undef PPC_DYNAMIC_TAG
 704 #define PPC_DYNAMIC_TAG(name, value) DYNAMIC_TAG(name, value)
 705 #include "llvm/BinaryFormat/DynamicTags.def"
 706 #undef PPC_DYNAMIC_TAG
 707 #define PPC_DYNAMIC_TAG(name, value)
 708     break;
 709   case ELF::EM_PPC64:
 710 #undef PPC64_DYNAMIC_TAG
 711 #define PPC64_DYNAMIC_TAG(name, value) DYNAMIC_TAG(name, value)
 712 #include "llvm/BinaryFormat/DynamicTags.def"
 713 #undef PPC64_DYNAMIC_TAG
 714 #define PPC64_DYNAMIC_TAG(name, value)
 715     break;
 716   default:
 717 #include "llvm/BinaryFormat/DynamicTags.def"
 718     break;
 719   }
 720 #undef AARCH64_DYNAMIC_TAG
 721 #undef MIPS_DYNAMIC_TAG
 722 #undef HEXAGON_DYNAMIC_TAG
 723 #undef PPC_DYNAMIC_TAG
 724 #undef PPC64_DYNAMIC_TAG
 725 #undef DYNAMIC_TAG_MARKER
 726 #undef STRINGIFY
 727 #undef DYNAMIC_TAG
 728
 729   IO.enumFallback<Hex64>(Value);
 730 }
 731
 732 void ScalarEnumerationTraits<ELFYAML::MIPS_AFL_REG>::enumeration(
 733     IO &IO, ELFYAML::MIPS_AFL_REG &Value) {
 734 #define ECase(X) IO.enumCase(Value, #X, Mips::AFL_##X)
 735   ECase(REG_NONE);
 736   ECase(REG_32);
 737   ECase(REG_64);
 738   ECase(REG_128);
 739 #undef ECase
 740 }
 741
 742 void ScalarEnumerationTraits<ELFYAML::MIPS_ABI_FP>::enumeration(
 743     IO &IO, ELFYAML::MIPS_ABI_FP &Value) {
 744 #define ECase(X) IO.enumCase(Value, #X, Mips::Val_GNU_MIPS_ABI_##X)
 745   ECase(FP_ANY);
 746   ECase(FP_DOUBLE);
 747   ECase(FP_SINGLE);
 748   ECase(FP_SOFT);
 749   ECase(FP_OLD_64);
 750   ECase(FP_XX);
 751   ECase(FP_64);
 752   ECase(FP_64A);
 753 #undef ECase
 754 }
 755
 756 void ScalarEnumerationTraits<ELFYAML::MIPS_AFL_EXT>::enumeration(
 757     IO &IO, ELFYAML::MIPS_AFL_EXT &Value) {
 758 #define ECase(X) IO.enumCase(Value, #X, Mips::AFL_##X)
 759   ECase(EXT_NONE);
 760   ECase(EXT_XLR);
 761   ECase(EXT_OCTEON2);
 762   ECase(EXT_OCTEONP);
 763   ECase(EXT_LOONGSON_3A);
 764   ECase(EXT_OCTEON);
 765   ECase(EXT_5900);
 766   ECase(EXT_4650);
 767   ECase(EXT_4010);
 768   ECase(EXT_4100);
 769   ECase(EXT_3900);
 770   ECase(EXT_10000);
 771   ECase(EXT_SB1);
 772   ECase(EXT_4111);
 773   ECase(EXT_4120);
 774   ECase(EXT_5400);
 775   ECase(EXT_5500);
 776   ECase(EXT_LOONGSON_2E);
 777   ECase(EXT_LOONGSON_2F);
 778   ECase(EXT_OCTEON3);
 779 #undef ECase
 780 }
 781
 782 void ScalarEnumerationTraits<ELFYAML::MIPS_ISA>::enumeration(
 783     IO &IO, ELFYAML::MIPS_ISA &Value) {
 784   IO.enumCase(Value, "MIPS1", 1);
 785   IO.enumCase(Value, "MIPS2", 2);
 786   IO.enumCase(Value, "MIPS3", 3);
 787   IO.enumCase(Value, "MIPS4", 4);
 788   IO.enumCase(Value, "MIPS5", 5);
 789   IO.enumCase(Value, "MIPS32", 32);
 790   IO.enumCase(Value, "MIPS64", 64);
 791 }
 792
 793 void ScalarBitSetTraits<ELFYAML::MIPS_AFL_ASE>::bitset(
 794     IO &IO, ELFYAML::MIPS_AFL_ASE &Value) {
 795 #define BCase(X) IO.bitSetCase(Value, #X, Mips::AFL_ASE_##X)
 796   BCase(DSP);
 797   BCase(DSPR2);
 798   BCase(EVA);
 799   BCase(MCU);
 800   BCase(MDMX);
 801   BCase(MIPS3D);
 802   BCase(MT);
 803   BCase(SMARTMIPS);
 804   BCase(VIRT);
 805   BCase(MSA);
 806   BCase(MIPS16);
 807   BCase(MICROMIPS);
 808   BCase(XPA);
 809 #undef BCase
 810 }
 811
 812 void ScalarBitSetTraits<ELFYAML::MIPS_AFL_FLAGS1>::bitset(
 813     IO &IO, ELFYAML::MIPS_AFL_FLAGS1 &Value) {
 814 #define BCase(X) IO.bitSetCase(Value, #X, Mips::AFL_FLAGS1_##X)
 815   BCase(ODDSPREG);
 816 #undef BCase
 817 }
 818
 819 void MappingTraits<ELFYAML::FileHeader>::mapping(IO &IO,
 820                                                  ELFYAML::FileHeader &FileHdr) {
 821   IO.mapRequired("Class", FileHdr.Class);
 822   IO.mapRequired("Data", FileHdr.Data);
 823   IO.mapOptional("OSABI", FileHdr.OSABI, ELFYAML::ELF_ELFOSABI(0));
 824   IO.mapOptional("ABIVersion", FileHdr.ABIVersion, Hex8(0));
 825   IO.mapRequired("Type", FileHdr.Type);
 826   IO.mapRequired("Machine", FileHdr.Machine);
 827   IO.mapOptional("Flags", FileHdr.Flags, ELFYAML::ELF_EF(0));
 828   IO.mapOptional("Entry", FileHdr.Entry, Hex64(0));
 829
 830   IO.mapOptional("SHEntSize", FileHdr.SHEntSize);
 831   IO.mapOptional("SHOff", FileHdr.SHOff);
 832   IO.mapOptional("SHNum", FileHdr.SHNum);
 833   IO.mapOptional("SHStrNdx", FileHdr.SHStrNdx);
 834 }
 835
 836 void MappingTraits<ELFYAML::ProgramHeader>::mapping(
 837     IO &IO, ELFYAML::ProgramHeader &Phdr) {
 838   IO.mapRequired("Type", Phdr.Type);
 839   IO.mapOptional("Flags", Phdr.Flags, ELFYAML::ELF_PF(0));
 840   IO.mapOptional("Sections", Phdr.Sections);
 841   IO.mapOptional("VAddr", Phdr.VAddr, Hex64(0));
 842   IO.mapOptional("PAddr", Phdr.PAddr, Hex64(0));
 843   IO.mapOptional("Align", Phdr.Align);
 844   IO.mapOptional("FileSize", Phdr.FileSize);
 845   IO.mapOptional("MemSize", Phdr.MemSize);
 846   IO.mapOptional("Offset", Phdr.Offset);
 847 }
 848
 849 LLVM_YAML_STRONG_TYPEDEF(StringRef, StOtherPiece)
 850
 851 template <> struct ScalarTraits<StOtherPiece> {
 852   static void output(const StOtherPiece &Val, void *, raw_ostream &Out) {
 853     Out << Val;
 854   }
 855   static StringRef input(StringRef Scalar, void *, StOtherPiece &Val) {
 856     Val = Scalar;
 857     return {};
 858   }
 859   static QuotingType mustQuote(StringRef) { return QuotingType::None; }
 860 };
 861 template <> struct SequenceElementTraits<StOtherPiece> {
 862   static const bool flow = true;
 863 };
 864
 865 namespace {
 866
 867 struct NormalizedOther {
 868   NormalizedOther(IO &IO) : YamlIO(IO) {}
 869   NormalizedOther(IO &IO, Optional<uint8_t> Original) : YamlIO(IO) {
 870     assert(Original && "This constructor is only used for outputting YAML and "
 871                        "assumes a non-empty Original");
 872     std::vector<StOtherPiece> Ret;
 873     const auto *Object = static_cast<ELFYAML::Object *>(YamlIO.getContext());
 874     for (std::pair<StringRef, uint8_t> &P :
 875          getFlags(Object->Header.Machine).takeVector()) {
 876       uint8_t FlagValue = P.second;
 877       if ((*Original & FlagValue) != FlagValue)
 878         continue;
 879       *Original &= ~FlagValue;
 880       Ret.push_back({P.first});
 881     }
 882
 883     if (*Original != 0) {
 884       UnknownFlagsHolder = std::to_string(*Original);
 885       Ret.push_back({UnknownFlagsHolder});
 886     }
 887
 888     if (!Ret.empty())
 889       Other = std::move(Ret);
 890   }
 891
 892   uint8_t toValue(StringRef Name) {
 893     const auto *Object = static_cast<ELFYAML::Object *>(YamlIO.getContext());
 894     MapVector<StringRef, uint8_t> Flags = getFlags(Object->Header.Machine);
 895
 896     auto It = Flags.find(Name);
 897     if (It != Flags.end())
 898       return It->second;
 899
 900     uint8_t Val;
 901     if (to_integer(Name, Val))
 902       return Val;
 903
 904     YamlIO.setError("an unknown value is used for symbol's 'Other' field: " +
 905                     Name);
 906     return 0;
 907   }
 908
 909   Optional<uint8_t> denormalize(IO &) {
 910     if (!Other)
 911       return None;
 912     uint8_t Ret = 0;
 913     for (StOtherPiece &Val : *Other)
 914       Ret |= toValue(Val);
 915     return Ret;
 916   }
 917
 918   // st_other field is used to encode symbol visibility and platform-dependent
 919   // flags and values. This method returns a name to value map that is used for
 920   // parsing and encoding this field.
 921   MapVector<StringRef, uint8_t> getFlags(unsigned EMachine) {
 922     MapVector<StringRef, uint8_t> Map;
 923     // STV_* values are just enumeration values. We add them in a reversed order
 924     // because when we convert the st_other to named constants when printing
 925     // YAML we want to use a maximum number of bits on each step:
 926     // when we have st_other == 3, we want to print it as STV_PROTECTED (3), but
 927     // not as STV_HIDDEN (2) + STV_INTERNAL (1).
 928     Map["STV_PROTECTED"] = ELF::STV_PROTECTED;
 929     Map["STV_HIDDEN"] = ELF::STV_HIDDEN;
 930     Map["STV_INTERNAL"] = ELF::STV_INTERNAL;
 931     // STV_DEFAULT is used to represent the default visibility and has a value
 932     // 0. We want to be able to read it from YAML documents, but there is no
 933     // reason to print it.
 934     if (!YamlIO.outputting())
 935       Map["STV_DEFAULT"] = ELF::STV_DEFAULT;
 936
 937     // MIPS is not consistent. All of the STO_MIPS_* values are bit flags,
 938     // except STO_MIPS_MIPS16 which overlaps them. It should be checked and
 939     // consumed first when we print the output, because we do not want to print
 940     // any other flags that have the same bits instead.
 941     if (EMachine == ELF::EM_MIPS) {
 942       Map["STO_MIPS_MIPS16"] = ELF::STO_MIPS_MIPS16;
 943       Map["STO_MIPS_MICROMIPS"] = ELF::STO_MIPS_MICROMIPS;
 944       Map["STO_MIPS_PIC"] = ELF::STO_MIPS_PIC;
 945       Map["STO_MIPS_PLT"] = ELF::STO_MIPS_PLT;
 946       Map["STO_MIPS_OPTIONAL"] = ELF::STO_MIPS_OPTIONAL;
 947     }
 948     return Map;
 949   }
 950
 951   IO &YamlIO;
 952   Optional<std::vector<StOtherPiece>> Other;
 953   std::string UnknownFlagsHolder;
 954 };
 955
 956 } // end anonymous namespace
 957
 958 void MappingTraits<ELFYAML::Symbol>::mapping(IO &IO, ELFYAML::Symbol &Symbol) {
 959   IO.mapOptional("Name", Symbol.Name, StringRef());
 960   IO.mapOptional("NameIndex", Symbol.NameIndex);
 961   IO.mapOptional("Type", Symbol.Type, ELFYAML::ELF_STT(0));
 962   IO.mapOptional("Section", Symbol.Section, StringRef());
 963   IO.mapOptional("Index", Symbol.Index);
 964   IO.mapOptional("Binding", Symbol.Binding, ELFYAML::ELF_STB(0));
 965   IO.mapOptional("Value", Symbol.Value, Hex64(0));
 966   IO.mapOptional("Size", Symbol.Size, Hex64(0));
 967
 968   // Symbol's Other field is a bit special. It is usually a field that
 969   // represents st_other and holds the symbol visibility. However, on some
 970   // platforms, it can contain bit fields and regular values, or even sometimes a
 971   // crazy mix of them (see comments for NormalizedOther). Because of this, we
 972   // need special handling.
 973   MappingNormalization<NormalizedOther, Optional<uint8_t>> Keys(IO,
 974                                                                 Symbol.Other);
 975   IO.mapOptional("Other", Keys->Other);
 976 }
 977
 978 StringRef MappingTraits<ELFYAML::Symbol>::validate(IO &IO,
 979                                                    ELFYAML::Symbol &Symbol) {
 980   if (Symbol.Index && Symbol.Section.data())
 981     return "Index and Section cannot both be specified for Symbol";
 982   if (Symbol.NameIndex && !Symbol.Name.empty())
 983     return "Name and NameIndex cannot both be specified for Symbol";
 984   return StringRef();
 985 }
 986
 987 static void commonSectionMapping(IO &IO, ELFYAML::Section &Section) {
 988   IO.mapOptional("Name", Section.Name, StringRef());
 989   IO.mapRequired("Type", Section.Type);
 990   IO.mapOptional("Flags", Section.Flags);
 991   IO.mapOptional("Address", Section.Address, Hex64(0));
 992   IO.mapOptional("Link", Section.Link, StringRef());
 993   IO.mapOptional("AddressAlign", Section.AddressAlign, Hex64(0));
 994   IO.mapOptional("EntSize", Section.EntSize);
 995
 996   // obj2yaml does not dump these fields. They are expected to be empty when we
 997   // are producing YAML, because yaml2obj sets appropriate values for them
 998   // automatically when they are not explicitly defined.
 999   assert(!IO.outputting() ||
1000          (!Section.ShOffset.hasValue() && !Section.ShSize.hasValue()));
1001   IO.mapOptional("ShName", Section.ShName);
1002   IO.mapOptional("ShOffset", Section.ShOffset);
1003   IO.mapOptional("ShSize", Section.ShSize);
1004 }
1005
1006 static void sectionMapping(IO &IO, ELFYAML::DynamicSection &Section) {
1007   commonSectionMapping(IO, Section);
1008   IO.mapOptional("Entries", Section.Entries);
1009   IO.mapOptional("Content", Section.Content);
1010 }
1011
1012 static void sectionMapping(IO &IO, ELFYAML::RawContentSection &Section) {
1013   commonSectionMapping(IO, Section);
1014   IO.mapOptional("Content", Section.Content);
1015   IO.mapOptional("Size", Section.Size);
1016   IO.mapOptional("Info", Section.Info);
1017 }
1018
1019 static void sectionMapping(IO &IO, ELFYAML::NoBitsSection &Section) {
1020   commonSectionMapping(IO, Section);
1021   IO.mapOptional("Size", Section.Size, Hex64(0));
1022 }
1023
1024 static void sectionMapping(IO &IO, ELFYAML::VerdefSection &Section) {
1025   commonSectionMapping(IO, Section);
1026   IO.mapRequired("Info", Section.Info);
1027   IO.mapRequired("Entries", Section.Entries);
1028 }
1029
1030 static void sectionMapping(IO &IO, ELFYAML::SymverSection &Section) {
1031   commonSectionMapping(IO, Section);
1032   IO.mapRequired("Entries", Section.Entries);
1033 }
1034
1035 static void sectionMapping(IO &IO, ELFYAML::VerneedSection &Section) {
1036   commonSectionMapping(IO, Section);
1037   IO.mapRequired("Info", Section.Info);
1038   IO.mapRequired("Dependencies", Section.VerneedV);
1039 }
1040
1041 static void sectionMapping(IO &IO, ELFYAML::RelocationSection &Section) {
1042   commonSectionMapping(IO, Section);
1043   IO.mapOptional("Info", Section.RelocatableSec, StringRef());
1044   IO.mapOptional("Relocations", Section.Relocations);
1045 }
1046
1047 static void groupSectionMapping(IO &IO, ELFYAML::Group &Group) {
1048   commonSectionMapping(IO, Group);
1049   IO.mapOptional("Info", Group.Signature, StringRef());
1050   IO.mapRequired("Members", Group.Members);
1051 }
1052
1053 static void sectionMapping(IO &IO, ELFYAML::SymtabShndxSection &Section) {
1054   commonSectionMapping(IO, Section);
1055   IO.mapRequired("Entries", Section.Entries);
1056 }
1057
1058 void MappingTraits<ELFYAML::SectionOrType>::mapping(
1059     IO &IO, ELFYAML::SectionOrType &sectionOrType) {
1060   IO.mapRequired("SectionOrType", sectionOrType.sectionNameOrType);
1061 }
1062
1063 void MappingTraits<ELFYAML::SectionName>::mapping(
1064     IO &IO, ELFYAML::SectionName &sectionName) {
1065   IO.mapRequired("Section", sectionName.Section);
1066 }
1067
1068 static void sectionMapping(IO &IO, ELFYAML::MipsABIFlags &Section) {
1069   commonSectionMapping(IO, Section);
1070   IO.mapOptional("Version", Section.Version, Hex16(0));
1071   IO.mapRequired("ISA", Section.ISALevel);
1072   IO.mapOptional("ISARevision", Section.ISARevision, Hex8(0));
1073   IO.mapOptional("ISAExtension", Section.ISAExtension,
1074                  ELFYAML::MIPS_AFL_EXT(Mips::AFL_EXT_NONE));
1075   IO.mapOptional("ASEs", Section.ASEs, ELFYAML::MIPS_AFL_ASE(0));
1076   IO.mapOptional("FpABI", Section.FpABI,
1077                  ELFYAML::MIPS_ABI_FP(Mips::Val_GNU_MIPS_ABI_FP_ANY));
1078   IO.mapOptional("GPRSize", Section.GPRSize,
1079                  ELFYAML::MIPS_AFL_REG(Mips::AFL_REG_NONE));
1080   IO.mapOptional("CPR1Size", Section.CPR1Size,
1081                  ELFYAML::MIPS_AFL_REG(Mips::AFL_REG_NONE));
1082   IO.mapOptional("CPR2Size", Section.CPR2Size,
1083                  ELFYAML::MIPS_AFL_REG(Mips::AFL_REG_NONE));
1084   IO.mapOptional("Flags1", Section.Flags1, ELFYAML::MIPS_AFL_FLAGS1(0));
1085   IO.mapOptional("Flags2", Section.Flags2, Hex32(0));
1086 }
1087
1088 void MappingTraits<std::unique_ptr<ELFYAML::Section>>::mapping(
1089     IO &IO, std::unique_ptr<ELFYAML::Section> &Section) {
1090   ELFYAML::ELF_SHT sectionType;
1091   if (IO.outputting())
1092     sectionType = Section->Type;
1093   else
1094     IO.mapRequired("Type", sectionType);
1095
1096   switch (sectionType) {
1097   case ELF::SHT_DYNAMIC:
1098     if (!IO.outputting())
1099       Section.reset(new ELFYAML::DynamicSection());
1100     sectionMapping(IO, *cast<ELFYAML::DynamicSection>(Section.get()));
1101     break;
1102   case ELF::SHT_REL:
1103   case ELF::SHT_RELA:
1104     if (!IO.outputting())
1105       Section.reset(new ELFYAML::RelocationSection());
1106     sectionMapping(IO, *cast<ELFYAML::RelocationSection>(Section.get()));
1107     break;
1108   case ELF::SHT_GROUP:
1109     if (!IO.outputting())
1110       Section.reset(new ELFYAML::Group());
1111     groupSectionMapping(IO, *cast<ELFYAML::Group>(Section.get()));
1112     break;
1113   case ELF::SHT_NOBITS:
1114     if (!IO.outputting())
1115       Section.reset(new ELFYAML::NoBitsSection());
1116     sectionMapping(IO, *cast<ELFYAML::NoBitsSection>(Section.get()));
1117     break;
1118   case ELF::SHT_MIPS_ABIFLAGS:
1119     if (!IO.outputting())
1120       Section.reset(new ELFYAML::MipsABIFlags());
1121     sectionMapping(IO, *cast<ELFYAML::MipsABIFlags>(Section.get()));
1122     break;
1123   case ELF::SHT_GNU_verdef:
1124     if (!IO.outputting())
1125       Section.reset(new ELFYAML::VerdefSection());
1126     sectionMapping(IO, *cast<ELFYAML::VerdefSection>(Section.get()));
1127     break;
1128   case ELF::SHT_GNU_versym:
1129     if (!IO.outputting())
1130       Section.reset(new ELFYAML::SymverSection());
1131     sectionMapping(IO, *cast<ELFYAML::SymverSection>(Section.get()));
1132     break;
1133   case ELF::SHT_GNU_verneed:
1134     if (!IO.outputting())
1135       Section.reset(new ELFYAML::VerneedSection());
1136     sectionMapping(IO, *cast<ELFYAML::VerneedSection>(Section.get()));
1137     break;
1138   case ELF::SHT_SYMTAB_SHNDX:
1139     if (!IO.outputting())
1140       Section.reset(new ELFYAML::SymtabShndxSection());
1141     sectionMapping(IO, *cast<ELFYAML::SymtabShndxSection>(Section.get()));
1142     break;
1143   default:
1144     if (!IO.outputting())
1145       Section.reset(new ELFYAML::RawContentSection());
1146     sectionMapping(IO, *cast<ELFYAML::RawContentSection>(Section.get()));
1147   }
1148 }
1149
1150 StringRef MappingTraits<std::unique_ptr<ELFYAML::Section>>::validate(
1151     IO &io, std::unique_ptr<ELFYAML::Section> &Section) {
1152   const auto *RawSection = dyn_cast<ELFYAML::RawContentSection>(Section.get());
1153   if (!RawSection)
1154     return {};
1155   if (RawSection->Size && RawSection->Content &&
1156       (uint64_t)(*RawSection->Size) < RawSection->Content->binary_size())
1157     return "Section size must be greater than or equal to the content size";
1158   return {};
1159 }
1160
1161 namespace {
1162
1163 struct NormalizedMips64RelType {
1164   NormalizedMips64RelType(IO &)
1165       : Type(ELFYAML::ELF_REL(ELF::R_MIPS_NONE)),
1166         Type2(ELFYAML::ELF_REL(ELF::R_MIPS_NONE)),
1167         Type3(ELFYAML::ELF_REL(ELF::R_MIPS_NONE)),
1168         SpecSym(ELFYAML::ELF_REL(ELF::RSS_UNDEF)) {}
1169   NormalizedMips64RelType(IO &, ELFYAML::ELF_REL Original)
1170       : Type(Original & 0xFF), Type2(Original >> 8 & 0xFF),
1171         Type3(Original >> 16 & 0xFF), SpecSym(Original >> 24 & 0xFF) {}
1172
1173   ELFYAML::ELF_REL denormalize(IO &) {
1174     ELFYAML::ELF_REL Res = Type | Type2 << 8 | Type3 << 16 | SpecSym << 24;
1175     return Res;
1176   }
1177
1178   ELFYAML::ELF_REL Type;
1179   ELFYAML::ELF_REL Type2;
1180   ELFYAML::ELF_REL Type3;
1181   ELFYAML::ELF_RSS SpecSym;
1182 };
1183
1184 } // end anonymous namespace
1185
1186 void MappingTraits<ELFYAML::DynamicEntry>::mapping(IO &IO,
1187                                                    ELFYAML::DynamicEntry &Rel) {
1188   assert(IO.getContext() && "The IO context is not initialized");
1189
1190   IO.mapRequired("Tag", Rel.Tag);
1191   IO.mapRequired("Value", Rel.Val);
1192 }
1193
1194 void MappingTraits<ELFYAML::VerdefEntry>::mapping(IO &IO,
1195                                                   ELFYAML::VerdefEntry &E) {
1196   assert(IO.getContext() && "The IO context is not initialized");
1197
1198   IO.mapRequired("Version", E.Version);
1199   IO.mapRequired("Flags", E.Flags);
1200   IO.mapRequired("VersionNdx", E.VersionNdx);
1201   IO.mapRequired("Hash", E.Hash);
1202   IO.mapRequired("Names", E.VerNames);
1203 }
1204
1205 void MappingTraits<ELFYAML::VerneedEntry>::mapping(IO &IO,
1206                                                    ELFYAML::VerneedEntry &E) {
1207   assert(IO.getContext() && "The IO context is not initialized");
1208
1209   IO.mapRequired("Version", E.Version);
1210   IO.mapRequired("File", E.File);
1211   IO.mapRequired("Entries", E.AuxV);
1212 }
1213
1214 void MappingTraits<ELFYAML::VernauxEntry>::mapping(IO &IO,
1215                                                    ELFYAML::VernauxEntry &E) {
1216   assert(IO.getContext() && "The IO context is not initialized");
1217
1218   IO.mapRequired("Name", E.Name);
1219   IO.mapRequired("Hash", E.Hash);
1220   IO.mapRequired("Flags", E.Flags);
1221   IO.mapRequired("Other", E.Other);
1222 }
1223
1224 void MappingTraits<ELFYAML::Relocation>::mapping(IO &IO,
1225                                                  ELFYAML::Relocation &Rel) {
1226   const auto *Object = static_cast<ELFYAML::Object *>(IO.getContext());
1227   assert(Object && "The IO context is not initialized");
1228
1229   IO.mapRequired("Offset", Rel.Offset);
1230   IO.mapOptional("Symbol", Rel.Symbol);
1231
1232   if (Object->Header.Machine == ELFYAML::ELF_EM(ELF::EM_MIPS) &&
1233       Object->Header.Class == ELFYAML::ELF_ELFCLASS(ELF::ELFCLASS64)) {
1234     MappingNormalization<NormalizedMips64RelType, ELFYAML::ELF_REL> Key(
1235         IO, Rel.Type);
1236     IO.mapRequired("Type", Key->Type);
1237     IO.mapOptional("Type2", Key->Type2, ELFYAML::ELF_REL(ELF::R_MIPS_NONE));
1238     IO.mapOptional("Type3", Key->Type3, ELFYAML::ELF_REL(ELF::R_MIPS_NONE));
1239     IO.mapOptional("SpecSym", Key->SpecSym, ELFYAML::ELF_RSS(ELF::RSS_UNDEF));
1240   } else
1241     IO.mapRequired("Type", Rel.Type);
1242
1243   IO.mapOptional("Addend", Rel.Addend, (int64_t)0);
1244 }
1245
1246 void MappingTraits<ELFYAML::Object>::mapping(IO &IO, ELFYAML::Object &Object) {
1247   assert(!IO.getContext() && "The IO context is initialized already");
1248   IO.setContext(&Object);
1249   IO.mapTag("!ELF", true);
1250   IO.mapRequired("FileHeader", Object.Header);
1251   IO.mapOptional("ProgramHeaders", Object.ProgramHeaders);
1252   IO.mapOptional("Sections", Object.Sections);
1253   IO.mapOptional("Symbols", Object.Symbols);
1254   IO.mapOptional("DynamicSymbols", Object.DynamicSymbols);
1255   IO.setContext(nullptr);
1256 }
1257
1258 LLVM_YAML_STRONG_TYPEDEF(uint8_t, MIPS_AFL_REG)
1259 LLVM_YAML_STRONG_TYPEDEF(uint8_t, MIPS_ABI_FP)
1260 LLVM_YAML_STRONG_TYPEDEF(uint32_t, MIPS_AFL_EXT)
1261 LLVM_YAML_STRONG_TYPEDEF(uint32_t, MIPS_AFL_ASE)
1262 LLVM_YAML_STRONG_TYPEDEF(uint32_t, MIPS_AFL_FLAGS1)
1263
1264 } // end namespace yaml
1265
1266 } // end namespace llvm