1 //===-- MCObjectFileInfo.cpp - Object File Information --------------------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 #include "llvm/MC/MCObjectFileInfo.h" 11 #include "llvm/ADT/StringExtras.h" 12 #include "llvm/ADT/Triple.h" 13 #include "llvm/MC/MCAsmInfo.h" 14 #include "llvm/MC/MCContext.h" 15 #include "llvm/MC/MCSection.h" 16 #include "llvm/MC/MCSectionCOFF.h" 17 #include "llvm/MC/MCSectionELF.h" 18 #include "llvm/MC/MCSectionMachO.h" 19 #include "llvm/Support/COFF.h" 20 21 using namespace llvm; 22 23 static bool useCompactUnwind(const Triple &T) { 24 // Only on darwin. 25 if (!T.isOSDarwin()) 26 return false; 27 28 // aarch64 always has it. 29 if (T.getArch() == Triple::aarch64) 30 return true; 31 32 // armv7k always has it. 33 if (T.isWatchABI()) 34 return true; 35 36 // Use it on newer version of OS X. 37 if (T.isMacOSX() && !T.isMacOSXVersionLT(10, 6)) 38 return true; 39 40 // And the iOS simulator. 41 if (T.isiOS() && 42 (T.getArch() == Triple::x86_64 || T.getArch() == Triple::x86)) 43 return true; 44 45 return false; 46 } 47 48 void MCObjectFileInfo::initMachOMCObjectFileInfo(const Triple &T) { 49 // MachO 50 SupportsWeakOmittedEHFrame = false; 51 52 EHFrameSection = Ctx->getMachOSection( 53 "__TEXT", "__eh_frame", 54 MachO::S_COALESCED | MachO::S_ATTR_NO_TOC | 55 MachO::S_ATTR_STRIP_STATIC_SYMS | MachO::S_ATTR_LIVE_SUPPORT, 56 SectionKind::getReadOnly()); 57 58 if (T.isOSDarwin() && T.getArch() == Triple::aarch64) 59 SupportsCompactUnwindWithoutEHFrame = true; 60 61 if (T.isWatchABI()) 62 OmitDwarfIfHaveCompactUnwind = true; 63 64 PersonalityEncoding = dwarf::DW_EH_PE_indirect | dwarf::DW_EH_PE_pcrel 65 | dwarf::DW_EH_PE_sdata4; 66 LSDAEncoding = FDECFIEncoding = dwarf::DW_EH_PE_pcrel; 67 TTypeEncoding = dwarf::DW_EH_PE_indirect | dwarf::DW_EH_PE_pcrel | 68 dwarf::DW_EH_PE_sdata4; 69 70 // .comm doesn't support alignment before Leopard. 71 if (T.isMacOSX() && T.isMacOSXVersionLT(10, 5)) 72 CommDirectiveSupportsAlignment = false; 73 74 TextSection // .text 75 = Ctx->getMachOSection("__TEXT", "__text", 76 MachO::S_ATTR_PURE_INSTRUCTIONS, 77 SectionKind::getText()); 78 DataSection // .data 79 = Ctx->getMachOSection("__DATA", "__data", 0, SectionKind::getData()); 80 81 // BSSSection might not be expected initialized on msvc. 82 BSSSection = nullptr; 83 84 TLSDataSection // .tdata 85 = Ctx->getMachOSection("__DATA", "__thread_data", 86 MachO::S_THREAD_LOCAL_REGULAR, 87 SectionKind::getData()); 88 TLSBSSSection // .tbss 89 = Ctx->getMachOSection("__DATA", "__thread_bss", 90 MachO::S_THREAD_LOCAL_ZEROFILL, 91 SectionKind::getThreadBSS()); 92 93 // TODO: Verify datarel below. 94 TLSTLVSection // .tlv 95 = Ctx->getMachOSection("__DATA", "__thread_vars", 96 MachO::S_THREAD_LOCAL_VARIABLES, 97 SectionKind::getData()); 98 99 TLSThreadInitSection = Ctx->getMachOSection( 100 "__DATA", "__thread_init", MachO::S_THREAD_LOCAL_INIT_FUNCTION_POINTERS, 101 SectionKind::getData()); 102 103 CStringSection // .cstring 104 = Ctx->getMachOSection("__TEXT", "__cstring", 105 MachO::S_CSTRING_LITERALS, 106 SectionKind::getMergeable1ByteCString()); 107 UStringSection 108 = Ctx->getMachOSection("__TEXT","__ustring", 0, 109 SectionKind::getMergeable2ByteCString()); 110 FourByteConstantSection // .literal4 111 = Ctx->getMachOSection("__TEXT", "__literal4", 112 MachO::S_4BYTE_LITERALS, 113 SectionKind::getMergeableConst4()); 114 EightByteConstantSection // .literal8 115 = Ctx->getMachOSection("__TEXT", "__literal8", 116 MachO::S_8BYTE_LITERALS, 117 SectionKind::getMergeableConst8()); 118 119 SixteenByteConstantSection // .literal16 120 = Ctx->getMachOSection("__TEXT", "__literal16", 121 MachO::S_16BYTE_LITERALS, 122 SectionKind::getMergeableConst16()); 123 124 ReadOnlySection // .const 125 = Ctx->getMachOSection("__TEXT", "__const", 0, 126 SectionKind::getReadOnly()); 127 128 // If the target is not powerpc, map the coal sections to the non-coal 129 // sections. 130 // 131 // "__TEXT/__textcoal_nt" => section "__TEXT/__text" 132 // "__TEXT/__const_coal" => section "__TEXT/__const" 133 // "__DATA/__datacoal_nt" => section "__DATA/__data" 134 Triple::ArchType ArchTy = T.getArch(); 135 136 if (ArchTy == Triple::ppc || ArchTy == Triple::ppc64) { 137 TextCoalSection 138 = Ctx->getMachOSection("__TEXT", "__textcoal_nt", 139 MachO::S_COALESCED | 140 MachO::S_ATTR_PURE_INSTRUCTIONS, 141 SectionKind::getText()); 142 ConstTextCoalSection 143 = Ctx->getMachOSection("__TEXT", "__const_coal", 144 MachO::S_COALESCED, 145 SectionKind::getReadOnly()); 146 DataCoalSection = Ctx->getMachOSection( 147 "__DATA", "__datacoal_nt", MachO::S_COALESCED, SectionKind::getData()); 148 } else { 149 TextCoalSection = TextSection; 150 ConstTextCoalSection = ReadOnlySection; 151 DataCoalSection = DataSection; 152 } 153 154 ConstDataSection // .const_data 155 = Ctx->getMachOSection("__DATA", "__const", 0, 156 SectionKind::getReadOnlyWithRel()); 157 DataCommonSection 158 = Ctx->getMachOSection("__DATA","__common", 159 MachO::S_ZEROFILL, 160 SectionKind::getBSS()); 161 DataBSSSection 162 = Ctx->getMachOSection("__DATA","__bss", MachO::S_ZEROFILL, 163 SectionKind::getBSS()); 164 165 166 LazySymbolPointerSection 167 = Ctx->getMachOSection("__DATA", "__la_symbol_ptr", 168 MachO::S_LAZY_SYMBOL_POINTERS, 169 SectionKind::getMetadata()); 170 NonLazySymbolPointerSection 171 = Ctx->getMachOSection("__DATA", "__nl_symbol_ptr", 172 MachO::S_NON_LAZY_SYMBOL_POINTERS, 173 SectionKind::getMetadata()); 174 175 ThreadLocalPointerSection 176 = Ctx->getMachOSection("__DATA", "__thread_ptr", 177 MachO::S_THREAD_LOCAL_VARIABLE_POINTERS, 178 SectionKind::getMetadata()); 179 180 if (!PositionIndependent) { 181 StaticCtorSection = Ctx->getMachOSection("__TEXT", "__constructor", 0, 182 SectionKind::getData()); 183 StaticDtorSection = Ctx->getMachOSection("__TEXT", "__destructor", 0, 184 SectionKind::getData()); 185 } else { 186 StaticCtorSection = Ctx->getMachOSection("__DATA", "__mod_init_func", 187 MachO::S_MOD_INIT_FUNC_POINTERS, 188 SectionKind::getData()); 189 StaticDtorSection = Ctx->getMachOSection("__DATA", "__mod_term_func", 190 MachO::S_MOD_TERM_FUNC_POINTERS, 191 SectionKind::getData()); 192 } 193 194 // Exception Handling. 195 LSDASection = Ctx->getMachOSection("__TEXT", "__gcc_except_tab", 0, 196 SectionKind::getReadOnlyWithRel()); 197 198 COFFDebugSymbolsSection = nullptr; 199 COFFDebugTypesSection = nullptr; 200 201 if (useCompactUnwind(T)) { 202 CompactUnwindSection = 203 Ctx->getMachOSection("__LD", "__compact_unwind", MachO::S_ATTR_DEBUG, 204 SectionKind::getReadOnly()); 205 206 if (T.getArch() == Triple::x86_64 || T.getArch() == Triple::x86) 207 CompactUnwindDwarfEHFrameOnly = 0x04000000; // UNWIND_X86_64_MODE_DWARF 208 else if (T.getArch() == Triple::aarch64) 209 CompactUnwindDwarfEHFrameOnly = 0x03000000; // UNWIND_ARM64_MODE_DWARF 210 else if (T.getArch() == Triple::arm || T.getArch() == Triple::thumb) 211 CompactUnwindDwarfEHFrameOnly = 0x04000000; // UNWIND_ARM_MODE_DWARF 212 } 213 214 // Debug Information. 215 DwarfAccelNamesSection = 216 Ctx->getMachOSection("__DWARF", "__apple_names", MachO::S_ATTR_DEBUG, 217 SectionKind::getMetadata(), "names_begin"); 218 DwarfAccelObjCSection = 219 Ctx->getMachOSection("__DWARF", "__apple_objc", MachO::S_ATTR_DEBUG, 220 SectionKind::getMetadata(), "objc_begin"); 221 // 16 character section limit... 222 DwarfAccelNamespaceSection = 223 Ctx->getMachOSection("__DWARF", "__apple_namespac", MachO::S_ATTR_DEBUG, 224 SectionKind::getMetadata(), "namespac_begin"); 225 DwarfAccelTypesSection = 226 Ctx->getMachOSection("__DWARF", "__apple_types", MachO::S_ATTR_DEBUG, 227 SectionKind::getMetadata(), "types_begin"); 228 229 DwarfAbbrevSection = 230 Ctx->getMachOSection("__DWARF", "__debug_abbrev", MachO::S_ATTR_DEBUG, 231 SectionKind::getMetadata(), "section_abbrev"); 232 DwarfInfoSection = 233 Ctx->getMachOSection("__DWARF", "__debug_info", MachO::S_ATTR_DEBUG, 234 SectionKind::getMetadata(), "section_info"); 235 DwarfLineSection = 236 Ctx->getMachOSection("__DWARF", "__debug_line", MachO::S_ATTR_DEBUG, 237 SectionKind::getMetadata(), "section_line"); 238 DwarfFrameSection = 239 Ctx->getMachOSection("__DWARF", "__debug_frame", MachO::S_ATTR_DEBUG, 240 SectionKind::getMetadata()); 241 DwarfPubNamesSection = 242 Ctx->getMachOSection("__DWARF", "__debug_pubnames", MachO::S_ATTR_DEBUG, 243 SectionKind::getMetadata()); 244 DwarfPubTypesSection = 245 Ctx->getMachOSection("__DWARF", "__debug_pubtypes", MachO::S_ATTR_DEBUG, 246 SectionKind::getMetadata()); 247 DwarfGnuPubNamesSection = 248 Ctx->getMachOSection("__DWARF", "__debug_gnu_pubn", MachO::S_ATTR_DEBUG, 249 SectionKind::getMetadata()); 250 DwarfGnuPubTypesSection = 251 Ctx->getMachOSection("__DWARF", "__debug_gnu_pubt", MachO::S_ATTR_DEBUG, 252 SectionKind::getMetadata()); 253 DwarfStrSection = 254 Ctx->getMachOSection("__DWARF", "__debug_str", MachO::S_ATTR_DEBUG, 255 SectionKind::getMetadata(), "info_string"); 256 DwarfLocSection = 257 Ctx->getMachOSection("__DWARF", "__debug_loc", MachO::S_ATTR_DEBUG, 258 SectionKind::getMetadata(), "section_debug_loc"); 259 DwarfARangesSection = 260 Ctx->getMachOSection("__DWARF", "__debug_aranges", MachO::S_ATTR_DEBUG, 261 SectionKind::getMetadata()); 262 DwarfRangesSection = 263 Ctx->getMachOSection("__DWARF", "__debug_ranges", MachO::S_ATTR_DEBUG, 264 SectionKind::getMetadata(), "debug_range"); 265 DwarfMacinfoSection = 266 Ctx->getMachOSection("__DWARF", "__debug_macinfo", MachO::S_ATTR_DEBUG, 267 SectionKind::getMetadata(), "debug_macinfo"); 268 DwarfDebugInlineSection = 269 Ctx->getMachOSection("__DWARF", "__debug_inlined", MachO::S_ATTR_DEBUG, 270 SectionKind::getMetadata()); 271 DwarfCUIndexSection = 272 Ctx->getMachOSection("__DWARF", "__debug_cu_index", MachO::S_ATTR_DEBUG, 273 SectionKind::getMetadata()); 274 DwarfTUIndexSection = 275 Ctx->getMachOSection("__DWARF", "__debug_tu_index", MachO::S_ATTR_DEBUG, 276 SectionKind::getMetadata()); 277 StackMapSection = Ctx->getMachOSection("__LLVM_STACKMAPS", "__llvm_stackmaps", 278 0, SectionKind::getMetadata()); 279 280 FaultMapSection = Ctx->getMachOSection("__LLVM_FAULTMAPS", "__llvm_faultmaps", 281 0, SectionKind::getMetadata()); 282 283 TLSExtraDataSection = TLSTLVSection; 284 } 285 286 void MCObjectFileInfo::initELFMCObjectFileInfo(const Triple &T) { 287 switch (T.getArch()) { 288 case Triple::mips: 289 case Triple::mipsel: 290 FDECFIEncoding = dwarf::DW_EH_PE_sdata4; 291 break; 292 case Triple::mips64: 293 case Triple::mips64el: 294 FDECFIEncoding = dwarf::DW_EH_PE_sdata8; 295 break; 296 case Triple::x86_64: 297 FDECFIEncoding = dwarf::DW_EH_PE_pcrel | 298 ((CMModel == CodeModel::Large) ? dwarf::DW_EH_PE_sdata8 299 : dwarf::DW_EH_PE_sdata4); 300 break; 301 default: 302 FDECFIEncoding = dwarf::DW_EH_PE_pcrel | dwarf::DW_EH_PE_sdata4; 303 break; 304 } 305 306 switch (T.getArch()) { 307 case Triple::arm: 308 case Triple::armeb: 309 case Triple::thumb: 310 case Triple::thumbeb: 311 if (Ctx->getAsmInfo()->getExceptionHandlingType() == ExceptionHandling::ARM) 312 break; 313 // Fallthrough if not using EHABI 314 LLVM_FALLTHROUGH; 315 case Triple::ppc: 316 case Triple::x86: 317 PersonalityEncoding = PositionIndependent 318 ? dwarf::DW_EH_PE_indirect | 319 dwarf::DW_EH_PE_pcrel | 320 dwarf::DW_EH_PE_sdata4 321 : dwarf::DW_EH_PE_absptr; 322 LSDAEncoding = PositionIndependent 323 ? dwarf::DW_EH_PE_pcrel | dwarf::DW_EH_PE_sdata4 324 : dwarf::DW_EH_PE_absptr; 325 TTypeEncoding = PositionIndependent 326 ? dwarf::DW_EH_PE_indirect | dwarf::DW_EH_PE_pcrel | 327 dwarf::DW_EH_PE_sdata4 328 : dwarf::DW_EH_PE_absptr; 329 break; 330 case Triple::x86_64: 331 if (PositionIndependent) { 332 PersonalityEncoding = dwarf::DW_EH_PE_indirect | dwarf::DW_EH_PE_pcrel | 333 ((CMModel == CodeModel::Small || CMModel == CodeModel::Medium) 334 ? dwarf::DW_EH_PE_sdata4 : dwarf::DW_EH_PE_sdata8); 335 LSDAEncoding = dwarf::DW_EH_PE_pcrel | 336 (CMModel == CodeModel::Small 337 ? dwarf::DW_EH_PE_sdata4 : dwarf::DW_EH_PE_sdata8); 338 TTypeEncoding = dwarf::DW_EH_PE_indirect | dwarf::DW_EH_PE_pcrel | 339 ((CMModel == CodeModel::Small || CMModel == CodeModel::Medium) 340 ? dwarf::DW_EH_PE_sdata4 : dwarf::DW_EH_PE_sdata8); 341 } else { 342 PersonalityEncoding = 343 (CMModel == CodeModel::Small || CMModel == CodeModel::Medium) 344 ? dwarf::DW_EH_PE_udata4 : dwarf::DW_EH_PE_absptr; 345 LSDAEncoding = (CMModel == CodeModel::Small) 346 ? dwarf::DW_EH_PE_udata4 : dwarf::DW_EH_PE_absptr; 347 TTypeEncoding = (CMModel == CodeModel::Small) 348 ? dwarf::DW_EH_PE_udata4 : dwarf::DW_EH_PE_absptr; 349 } 350 break; 351 case Triple::hexagon: 352 PersonalityEncoding = dwarf::DW_EH_PE_absptr; 353 LSDAEncoding = dwarf::DW_EH_PE_absptr; 354 FDECFIEncoding = dwarf::DW_EH_PE_absptr; 355 TTypeEncoding = dwarf::DW_EH_PE_absptr; 356 if (PositionIndependent) { 357 PersonalityEncoding |= dwarf::DW_EH_PE_indirect | dwarf::DW_EH_PE_pcrel; 358 LSDAEncoding |= dwarf::DW_EH_PE_pcrel; 359 FDECFIEncoding |= dwarf::DW_EH_PE_pcrel; 360 TTypeEncoding |= dwarf::DW_EH_PE_indirect | dwarf::DW_EH_PE_pcrel; 361 } 362 break; 363 case Triple::aarch64: 364 case Triple::aarch64_be: 365 // The small model guarantees static code/data size < 4GB, but not where it 366 // will be in memory. Most of these could end up >2GB away so even a signed 367 // pc-relative 32-bit address is insufficient, theoretically. 368 if (PositionIndependent) { 369 PersonalityEncoding = dwarf::DW_EH_PE_indirect | dwarf::DW_EH_PE_pcrel | 370 dwarf::DW_EH_PE_sdata8; 371 LSDAEncoding = dwarf::DW_EH_PE_pcrel | dwarf::DW_EH_PE_sdata8; 372 TTypeEncoding = dwarf::DW_EH_PE_indirect | dwarf::DW_EH_PE_pcrel | 373 dwarf::DW_EH_PE_sdata8; 374 } else { 375 PersonalityEncoding = dwarf::DW_EH_PE_absptr; 376 LSDAEncoding = dwarf::DW_EH_PE_absptr; 377 TTypeEncoding = dwarf::DW_EH_PE_absptr; 378 } 379 break; 380 case Triple::lanai: 381 LSDAEncoding = dwarf::DW_EH_PE_absptr; 382 PersonalityEncoding = dwarf::DW_EH_PE_absptr; 383 TTypeEncoding = dwarf::DW_EH_PE_absptr; 384 break; 385 case Triple::mips: 386 case Triple::mipsel: 387 case Triple::mips64: 388 case Triple::mips64el: 389 // MIPS uses indirect pointer to refer personality functions and types, so 390 // that the eh_frame section can be read-only. DW.ref.personality will be 391 // generated for relocation. 392 PersonalityEncoding = dwarf::DW_EH_PE_indirect; 393 // FIXME: The N64 ABI probably ought to use DW_EH_PE_sdata8 but we can't 394 // identify N64 from just a triple. 395 TTypeEncoding = dwarf::DW_EH_PE_indirect | dwarf::DW_EH_PE_pcrel | 396 dwarf::DW_EH_PE_sdata4; 397 // We don't support PC-relative LSDA references in GAS so we use the default 398 // DW_EH_PE_absptr for those. 399 400 // FreeBSD must be explicit about the data size and using pcrel since it's 401 // assembler/linker won't do the automatic conversion that the Linux tools 402 // do. 403 if (T.isOSFreeBSD()) { 404 PersonalityEncoding |= dwarf::DW_EH_PE_pcrel | dwarf::DW_EH_PE_sdata4; 405 LSDAEncoding = dwarf::DW_EH_PE_pcrel | dwarf::DW_EH_PE_sdata4; 406 } 407 break; 408 case Triple::ppc64: 409 case Triple::ppc64le: 410 PersonalityEncoding = dwarf::DW_EH_PE_indirect | dwarf::DW_EH_PE_pcrel | 411 dwarf::DW_EH_PE_udata8; 412 LSDAEncoding = dwarf::DW_EH_PE_pcrel | dwarf::DW_EH_PE_udata8; 413 TTypeEncoding = dwarf::DW_EH_PE_indirect | dwarf::DW_EH_PE_pcrel | 414 dwarf::DW_EH_PE_udata8; 415 break; 416 case Triple::sparcel: 417 case Triple::sparc: 418 if (PositionIndependent) { 419 LSDAEncoding = dwarf::DW_EH_PE_pcrel | dwarf::DW_EH_PE_sdata4; 420 PersonalityEncoding = dwarf::DW_EH_PE_indirect | dwarf::DW_EH_PE_pcrel | 421 dwarf::DW_EH_PE_sdata4; 422 TTypeEncoding = dwarf::DW_EH_PE_indirect | dwarf::DW_EH_PE_pcrel | 423 dwarf::DW_EH_PE_sdata4; 424 } else { 425 LSDAEncoding = dwarf::DW_EH_PE_absptr; 426 PersonalityEncoding = dwarf::DW_EH_PE_absptr; 427 TTypeEncoding = dwarf::DW_EH_PE_absptr; 428 } 429 break; 430 case Triple::sparcv9: 431 LSDAEncoding = dwarf::DW_EH_PE_pcrel | dwarf::DW_EH_PE_sdata4; 432 if (PositionIndependent) { 433 PersonalityEncoding = dwarf::DW_EH_PE_indirect | dwarf::DW_EH_PE_pcrel | 434 dwarf::DW_EH_PE_sdata4; 435 TTypeEncoding = dwarf::DW_EH_PE_indirect | dwarf::DW_EH_PE_pcrel | 436 dwarf::DW_EH_PE_sdata4; 437 } else { 438 PersonalityEncoding = dwarf::DW_EH_PE_absptr; 439 TTypeEncoding = dwarf::DW_EH_PE_absptr; 440 } 441 break; 442 case Triple::systemz: 443 // All currently-defined code models guarantee that 4-byte PC-relative 444 // values will be in range. 445 if (PositionIndependent) { 446 PersonalityEncoding = dwarf::DW_EH_PE_indirect | dwarf::DW_EH_PE_pcrel | 447 dwarf::DW_EH_PE_sdata4; 448 LSDAEncoding = dwarf::DW_EH_PE_pcrel | dwarf::DW_EH_PE_sdata4; 449 TTypeEncoding = dwarf::DW_EH_PE_indirect | dwarf::DW_EH_PE_pcrel | 450 dwarf::DW_EH_PE_sdata4; 451 } else { 452 PersonalityEncoding = dwarf::DW_EH_PE_absptr; 453 LSDAEncoding = dwarf::DW_EH_PE_absptr; 454 TTypeEncoding = dwarf::DW_EH_PE_absptr; 455 } 456 break; 457 default: 458 break; 459 } 460 461 unsigned EHSectionType = T.getArch() == Triple::x86_64 462 ? ELF::SHT_X86_64_UNWIND 463 : ELF::SHT_PROGBITS; 464 465 // Solaris requires different flags for .eh_frame to seemingly every other 466 // platform. 467 unsigned EHSectionFlags = ELF::SHF_ALLOC; 468 if (T.isOSSolaris() && T.getArch() != Triple::x86_64) 469 EHSectionFlags |= ELF::SHF_WRITE; 470 471 // ELF 472 BSSSection = Ctx->getELFSection(".bss", ELF::SHT_NOBITS, 473 ELF::SHF_WRITE | ELF::SHF_ALLOC); 474 475 TextSection = Ctx->getELFSection(".text", ELF::SHT_PROGBITS, 476 ELF::SHF_EXECINSTR | ELF::SHF_ALLOC); 477 478 DataSection = Ctx->getELFSection(".data", ELF::SHT_PROGBITS, 479 ELF::SHF_WRITE | ELF::SHF_ALLOC); 480 481 ReadOnlySection = 482 Ctx->getELFSection(".rodata", ELF::SHT_PROGBITS, ELF::SHF_ALLOC); 483 484 TLSDataSection = 485 Ctx->getELFSection(".tdata", ELF::SHT_PROGBITS, 486 ELF::SHF_ALLOC | ELF::SHF_TLS | ELF::SHF_WRITE); 487 488 TLSBSSSection = Ctx->getELFSection( 489 ".tbss", ELF::SHT_NOBITS, ELF::SHF_ALLOC | ELF::SHF_TLS | ELF::SHF_WRITE); 490 491 DataRelROSection = Ctx->getELFSection(".data.rel.ro", ELF::SHT_PROGBITS, 492 ELF::SHF_ALLOC | ELF::SHF_WRITE); 493 494 MergeableConst4Section = 495 Ctx->getELFSection(".rodata.cst4", ELF::SHT_PROGBITS, 496 ELF::SHF_ALLOC | ELF::SHF_MERGE, 4, ""); 497 498 MergeableConst8Section = 499 Ctx->getELFSection(".rodata.cst8", ELF::SHT_PROGBITS, 500 ELF::SHF_ALLOC | ELF::SHF_MERGE, 8, ""); 501 502 MergeableConst16Section = 503 Ctx->getELFSection(".rodata.cst16", ELF::SHT_PROGBITS, 504 ELF::SHF_ALLOC | ELF::SHF_MERGE, 16, ""); 505 506 MergeableConst32Section = 507 Ctx->getELFSection(".rodata.cst32", ELF::SHT_PROGBITS, 508 ELF::SHF_ALLOC | ELF::SHF_MERGE, 32, ""); 509 510 StaticCtorSection = Ctx->getELFSection(".ctors", ELF::SHT_PROGBITS, 511 ELF::SHF_ALLOC | ELF::SHF_WRITE); 512 513 StaticDtorSection = Ctx->getELFSection(".dtors", ELF::SHT_PROGBITS, 514 ELF::SHF_ALLOC | ELF::SHF_WRITE); 515 516 // Exception Handling Sections. 517 518 // FIXME: We're emitting LSDA info into a readonly section on ELF, even though 519 // it contains relocatable pointers. In PIC mode, this is probably a big 520 // runtime hit for C++ apps. Either the contents of the LSDA need to be 521 // adjusted or this should be a data section. 522 LSDASection = Ctx->getELFSection(".gcc_except_table", ELF::SHT_PROGBITS, 523 ELF::SHF_ALLOC); 524 525 COFFDebugSymbolsSection = nullptr; 526 COFFDebugTypesSection = nullptr; 527 528 // Debug Info Sections. 529 DwarfAbbrevSection = Ctx->getELFSection(".debug_abbrev", ELF::SHT_PROGBITS, 0, 530 "section_abbrev"); 531 DwarfInfoSection = 532 Ctx->getELFSection(".debug_info", ELF::SHT_PROGBITS, 0, "section_info"); 533 DwarfLineSection = Ctx->getELFSection(".debug_line", ELF::SHT_PROGBITS, 0); 534 DwarfFrameSection = Ctx->getELFSection(".debug_frame", ELF::SHT_PROGBITS, 0); 535 DwarfPubNamesSection = 536 Ctx->getELFSection(".debug_pubnames", ELF::SHT_PROGBITS, 0); 537 DwarfPubTypesSection = 538 Ctx->getELFSection(".debug_pubtypes", ELF::SHT_PROGBITS, 0); 539 DwarfGnuPubNamesSection = 540 Ctx->getELFSection(".debug_gnu_pubnames", ELF::SHT_PROGBITS, 0); 541 DwarfGnuPubTypesSection = 542 Ctx->getELFSection(".debug_gnu_pubtypes", ELF::SHT_PROGBITS, 0); 543 DwarfStrSection = 544 Ctx->getELFSection(".debug_str", ELF::SHT_PROGBITS, 545 ELF::SHF_MERGE | ELF::SHF_STRINGS, 1, ""); 546 DwarfLocSection = Ctx->getELFSection(".debug_loc", ELF::SHT_PROGBITS, 0); 547 DwarfARangesSection = 548 Ctx->getELFSection(".debug_aranges", ELF::SHT_PROGBITS, 0); 549 DwarfRangesSection = 550 Ctx->getELFSection(".debug_ranges", ELF::SHT_PROGBITS, 0, "debug_range"); 551 DwarfMacinfoSection = Ctx->getELFSection(".debug_macinfo", ELF::SHT_PROGBITS, 552 0, "debug_macinfo"); 553 554 // DWARF5 Experimental Debug Info 555 556 // Accelerator Tables 557 DwarfAccelNamesSection = 558 Ctx->getELFSection(".apple_names", ELF::SHT_PROGBITS, 0, "names_begin"); 559 DwarfAccelObjCSection = 560 Ctx->getELFSection(".apple_objc", ELF::SHT_PROGBITS, 0, "objc_begin"); 561 DwarfAccelNamespaceSection = Ctx->getELFSection( 562 ".apple_namespaces", ELF::SHT_PROGBITS, 0, "namespac_begin"); 563 DwarfAccelTypesSection = 564 Ctx->getELFSection(".apple_types", ELF::SHT_PROGBITS, 0, "types_begin"); 565 566 // Fission Sections 567 DwarfInfoDWOSection = 568 Ctx->getELFSection(".debug_info.dwo", ELF::SHT_PROGBITS, 0); 569 DwarfTypesDWOSection = 570 Ctx->getELFSection(".debug_types.dwo", ELF::SHT_PROGBITS, 0); 571 DwarfAbbrevDWOSection = 572 Ctx->getELFSection(".debug_abbrev.dwo", ELF::SHT_PROGBITS, 0); 573 DwarfStrDWOSection = 574 Ctx->getELFSection(".debug_str.dwo", ELF::SHT_PROGBITS, 575 ELF::SHF_MERGE | ELF::SHF_STRINGS, 1, ""); 576 DwarfLineDWOSection = 577 Ctx->getELFSection(".debug_line.dwo", ELF::SHT_PROGBITS, 0); 578 DwarfLocDWOSection = 579 Ctx->getELFSection(".debug_loc.dwo", ELF::SHT_PROGBITS, 0, "skel_loc"); 580 DwarfStrOffDWOSection = 581 Ctx->getELFSection(".debug_str_offsets.dwo", ELF::SHT_PROGBITS, 0); 582 DwarfAddrSection = 583 Ctx->getELFSection(".debug_addr", ELF::SHT_PROGBITS, 0, "addr_sec"); 584 585 // DWP Sections 586 DwarfCUIndexSection = 587 Ctx->getELFSection(".debug_cu_index", ELF::SHT_PROGBITS, 0); 588 DwarfTUIndexSection = 589 Ctx->getELFSection(".debug_tu_index", ELF::SHT_PROGBITS, 0); 590 591 StackMapSection = 592 Ctx->getELFSection(".llvm_stackmaps", ELF::SHT_PROGBITS, ELF::SHF_ALLOC); 593 594 FaultMapSection = 595 Ctx->getELFSection(".llvm_faultmaps", ELF::SHT_PROGBITS, ELF::SHF_ALLOC); 596 597 EHFrameSection = 598 Ctx->getELFSection(".eh_frame", EHSectionType, EHSectionFlags); 599 } 600 601 void MCObjectFileInfo::initCOFFMCObjectFileInfo(const Triple &T) { 602 EHFrameSection = Ctx->getCOFFSection( 603 ".eh_frame", COFF::IMAGE_SCN_CNT_INITIALIZED_DATA | 604 COFF::IMAGE_SCN_MEM_READ | COFF::IMAGE_SCN_MEM_WRITE, 605 SectionKind::getData()); 606 607 // Set the `IMAGE_SCN_MEM_16BIT` flag when compiling for thumb mode. This is 608 // used to indicate to the linker that the text segment contains thumb instructions 609 // and to set the ISA selection bit for calls accordingly. 610 const bool IsThumb = T.getArch() == Triple::thumb; 611 612 CommDirectiveSupportsAlignment = true; 613 614 // COFF 615 BSSSection = Ctx->getCOFFSection( 616 ".bss", COFF::IMAGE_SCN_CNT_UNINITIALIZED_DATA | 617 COFF::IMAGE_SCN_MEM_READ | COFF::IMAGE_SCN_MEM_WRITE, 618 SectionKind::getBSS()); 619 TextSection = Ctx->getCOFFSection( 620 ".text", 621 (IsThumb ? COFF::IMAGE_SCN_MEM_16BIT : (COFF::SectionCharacteristics)0) | 622 COFF::IMAGE_SCN_CNT_CODE | COFF::IMAGE_SCN_MEM_EXECUTE | 623 COFF::IMAGE_SCN_MEM_READ, 624 SectionKind::getText()); 625 DataSection = Ctx->getCOFFSection( 626 ".data", COFF::IMAGE_SCN_CNT_INITIALIZED_DATA | COFF::IMAGE_SCN_MEM_READ | 627 COFF::IMAGE_SCN_MEM_WRITE, 628 SectionKind::getData()); 629 ReadOnlySection = Ctx->getCOFFSection( 630 ".rdata", COFF::IMAGE_SCN_CNT_INITIALIZED_DATA | COFF::IMAGE_SCN_MEM_READ, 631 SectionKind::getReadOnly()); 632 633 if (T.isKnownWindowsMSVCEnvironment() || T.isWindowsItaniumEnvironment()) { 634 StaticCtorSection = 635 Ctx->getCOFFSection(".CRT$XCU", COFF::IMAGE_SCN_CNT_INITIALIZED_DATA | 636 COFF::IMAGE_SCN_MEM_READ, 637 SectionKind::getReadOnly()); 638 StaticDtorSection = 639 Ctx->getCOFFSection(".CRT$XTX", COFF::IMAGE_SCN_CNT_INITIALIZED_DATA | 640 COFF::IMAGE_SCN_MEM_READ, 641 SectionKind::getReadOnly()); 642 } else { 643 StaticCtorSection = Ctx->getCOFFSection( 644 ".ctors", COFF::IMAGE_SCN_CNT_INITIALIZED_DATA | 645 COFF::IMAGE_SCN_MEM_READ | COFF::IMAGE_SCN_MEM_WRITE, 646 SectionKind::getData()); 647 StaticDtorSection = Ctx->getCOFFSection( 648 ".dtors", COFF::IMAGE_SCN_CNT_INITIALIZED_DATA | 649 COFF::IMAGE_SCN_MEM_READ | COFF::IMAGE_SCN_MEM_WRITE, 650 SectionKind::getData()); 651 } 652 653 // FIXME: We're emitting LSDA info into a readonly section on COFF, even 654 // though it contains relocatable pointers. In PIC mode, this is probably a 655 // big runtime hit for C++ apps. Either the contents of the LSDA need to be 656 // adjusted or this should be a data section. 657 if (T.getArch() == Triple::x86_64) { 658 // On Windows 64 with SEH, the LSDA is emitted into the .xdata section 659 LSDASection = nullptr; 660 } else { 661 LSDASection = Ctx->getCOFFSection(".gcc_except_table", 662 COFF::IMAGE_SCN_CNT_INITIALIZED_DATA | 663 COFF::IMAGE_SCN_MEM_READ, 664 SectionKind::getReadOnly()); 665 } 666 667 // Debug info. 668 COFFDebugSymbolsSection = 669 Ctx->getCOFFSection(".debug$S", (COFF::IMAGE_SCN_MEM_DISCARDABLE | 670 COFF::IMAGE_SCN_CNT_INITIALIZED_DATA | 671 COFF::IMAGE_SCN_MEM_READ), 672 SectionKind::getMetadata()); 673 COFFDebugTypesSection = 674 Ctx->getCOFFSection(".debug$T", (COFF::IMAGE_SCN_MEM_DISCARDABLE | 675 COFF::IMAGE_SCN_CNT_INITIALIZED_DATA | 676 COFF::IMAGE_SCN_MEM_READ), 677 SectionKind::getMetadata()); 678 679 DwarfAbbrevSection = Ctx->getCOFFSection( 680 ".debug_abbrev", 681 COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA | 682 COFF::IMAGE_SCN_MEM_READ, 683 SectionKind::getMetadata(), "section_abbrev"); 684 DwarfInfoSection = Ctx->getCOFFSection( 685 ".debug_info", 686 COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA | 687 COFF::IMAGE_SCN_MEM_READ, 688 SectionKind::getMetadata(), "section_info"); 689 DwarfLineSection = Ctx->getCOFFSection( 690 ".debug_line", 691 COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA | 692 COFF::IMAGE_SCN_MEM_READ, 693 SectionKind::getMetadata(), "section_line"); 694 695 DwarfFrameSection = Ctx->getCOFFSection( 696 ".debug_frame", 697 COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA | 698 COFF::IMAGE_SCN_MEM_READ, 699 SectionKind::getMetadata()); 700 DwarfPubNamesSection = Ctx->getCOFFSection( 701 ".debug_pubnames", 702 COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA | 703 COFF::IMAGE_SCN_MEM_READ, 704 SectionKind::getMetadata()); 705 DwarfPubTypesSection = Ctx->getCOFFSection( 706 ".debug_pubtypes", 707 COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA | 708 COFF::IMAGE_SCN_MEM_READ, 709 SectionKind::getMetadata()); 710 DwarfGnuPubNamesSection = Ctx->getCOFFSection( 711 ".debug_gnu_pubnames", 712 COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA | 713 COFF::IMAGE_SCN_MEM_READ, 714 SectionKind::getMetadata()); 715 DwarfGnuPubTypesSection = Ctx->getCOFFSection( 716 ".debug_gnu_pubtypes", 717 COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA | 718 COFF::IMAGE_SCN_MEM_READ, 719 SectionKind::getMetadata()); 720 DwarfStrSection = Ctx->getCOFFSection( 721 ".debug_str", 722 COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA | 723 COFF::IMAGE_SCN_MEM_READ, 724 SectionKind::getMetadata(), "info_string"); 725 DwarfLocSection = Ctx->getCOFFSection( 726 ".debug_loc", 727 COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA | 728 COFF::IMAGE_SCN_MEM_READ, 729 SectionKind::getMetadata(), "section_debug_loc"); 730 DwarfARangesSection = Ctx->getCOFFSection( 731 ".debug_aranges", 732 COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA | 733 COFF::IMAGE_SCN_MEM_READ, 734 SectionKind::getMetadata()); 735 DwarfRangesSection = Ctx->getCOFFSection( 736 ".debug_ranges", 737 COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA | 738 COFF::IMAGE_SCN_MEM_READ, 739 SectionKind::getMetadata(), "debug_range"); 740 DwarfMacinfoSection = Ctx->getCOFFSection( 741 ".debug_macinfo", 742 COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA | 743 COFF::IMAGE_SCN_MEM_READ, 744 SectionKind::getMetadata(), "debug_macinfo"); 745 DwarfInfoDWOSection = Ctx->getCOFFSection( 746 ".debug_info.dwo", 747 COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA | 748 COFF::IMAGE_SCN_MEM_READ, 749 SectionKind::getMetadata(), "section_info_dwo"); 750 DwarfTypesDWOSection = Ctx->getCOFFSection( 751 ".debug_types.dwo", 752 COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA | 753 COFF::IMAGE_SCN_MEM_READ, 754 SectionKind::getMetadata(), "section_types_dwo"); 755 DwarfAbbrevDWOSection = Ctx->getCOFFSection( 756 ".debug_abbrev.dwo", 757 COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA | 758 COFF::IMAGE_SCN_MEM_READ, 759 SectionKind::getMetadata(), "section_abbrev_dwo"); 760 DwarfStrDWOSection = Ctx->getCOFFSection( 761 ".debug_str.dwo", 762 COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA | 763 COFF::IMAGE_SCN_MEM_READ, 764 SectionKind::getMetadata(), "skel_string"); 765 DwarfLineDWOSection = Ctx->getCOFFSection( 766 ".debug_line.dwo", 767 COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA | 768 COFF::IMAGE_SCN_MEM_READ, 769 SectionKind::getMetadata()); 770 DwarfLocDWOSection = Ctx->getCOFFSection( 771 ".debug_loc.dwo", 772 COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA | 773 COFF::IMAGE_SCN_MEM_READ, 774 SectionKind::getMetadata(), "skel_loc"); 775 DwarfStrOffDWOSection = Ctx->getCOFFSection( 776 ".debug_str_offsets.dwo", 777 COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA | 778 COFF::IMAGE_SCN_MEM_READ, 779 SectionKind::getMetadata()); 780 DwarfAddrSection = Ctx->getCOFFSection( 781 ".debug_addr", 782 COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA | 783 COFF::IMAGE_SCN_MEM_READ, 784 SectionKind::getMetadata(), "addr_sec"); 785 DwarfCUIndexSection = Ctx->getCOFFSection( 786 ".debug_cu_index", 787 COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA | 788 COFF::IMAGE_SCN_MEM_READ, 789 SectionKind::getMetadata()); 790 DwarfTUIndexSection = Ctx->getCOFFSection( 791 ".debug_tu_index", 792 COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA | 793 COFF::IMAGE_SCN_MEM_READ, 794 SectionKind::getMetadata()); 795 DwarfAccelNamesSection = Ctx->getCOFFSection( 796 ".apple_names", 797 COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA | 798 COFF::IMAGE_SCN_MEM_READ, 799 SectionKind::getMetadata(), "names_begin"); 800 DwarfAccelNamespaceSection = Ctx->getCOFFSection( 801 ".apple_namespaces", 802 COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA | 803 COFF::IMAGE_SCN_MEM_READ, 804 SectionKind::getMetadata(), "namespac_begin"); 805 DwarfAccelTypesSection = Ctx->getCOFFSection( 806 ".apple_types", 807 COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA | 808 COFF::IMAGE_SCN_MEM_READ, 809 SectionKind::getMetadata(), "types_begin"); 810 DwarfAccelObjCSection = Ctx->getCOFFSection( 811 ".apple_objc", 812 COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA | 813 COFF::IMAGE_SCN_MEM_READ, 814 SectionKind::getMetadata(), "objc_begin"); 815 816 DrectveSection = Ctx->getCOFFSection( 817 ".drectve", COFF::IMAGE_SCN_LNK_INFO | COFF::IMAGE_SCN_LNK_REMOVE, 818 SectionKind::getMetadata()); 819 820 PDataSection = Ctx->getCOFFSection( 821 ".pdata", COFF::IMAGE_SCN_CNT_INITIALIZED_DATA | COFF::IMAGE_SCN_MEM_READ, 822 SectionKind::getData()); 823 824 XDataSection = Ctx->getCOFFSection( 825 ".xdata", COFF::IMAGE_SCN_CNT_INITIALIZED_DATA | COFF::IMAGE_SCN_MEM_READ, 826 SectionKind::getData()); 827 828 SXDataSection = Ctx->getCOFFSection(".sxdata", COFF::IMAGE_SCN_LNK_INFO, 829 SectionKind::getMetadata()); 830 831 TLSDataSection = Ctx->getCOFFSection( 832 ".tls$", COFF::IMAGE_SCN_CNT_INITIALIZED_DATA | COFF::IMAGE_SCN_MEM_READ | 833 COFF::IMAGE_SCN_MEM_WRITE, 834 SectionKind::getData()); 835 836 StackMapSection = Ctx->getCOFFSection(".llvm_stackmaps", 837 COFF::IMAGE_SCN_CNT_INITIALIZED_DATA | 838 COFF::IMAGE_SCN_MEM_READ, 839 SectionKind::getReadOnly()); 840 } 841 842 void MCObjectFileInfo::InitMCObjectFileInfo(const Triple &TheTriple, bool PIC, 843 CodeModel::Model cm, 844 MCContext &ctx) { 845 PositionIndependent = PIC; 846 CMModel = cm; 847 Ctx = &ctx; 848 849 // Common. 850 CommDirectiveSupportsAlignment = true; 851 SupportsWeakOmittedEHFrame = true; 852 SupportsCompactUnwindWithoutEHFrame = false; 853 OmitDwarfIfHaveCompactUnwind = false; 854 855 PersonalityEncoding = LSDAEncoding = FDECFIEncoding = TTypeEncoding = 856 dwarf::DW_EH_PE_absptr; 857 858 CompactUnwindDwarfEHFrameOnly = 0; 859 860 EHFrameSection = nullptr; // Created on demand. 861 CompactUnwindSection = nullptr; // Used only by selected targets. 862 DwarfAccelNamesSection = nullptr; // Used only by selected targets. 863 DwarfAccelObjCSection = nullptr; // Used only by selected targets. 864 DwarfAccelNamespaceSection = nullptr; // Used only by selected targets. 865 DwarfAccelTypesSection = nullptr; // Used only by selected targets. 866 867 TT = TheTriple; 868 869 switch (TT.getObjectFormat()) { 870 case Triple::MachO: 871 Env = IsMachO; 872 initMachOMCObjectFileInfo(TT); 873 break; 874 case Triple::COFF: 875 if (!TT.isOSWindows()) 876 report_fatal_error( 877 "Cannot initialize MC for non-Windows COFF object files."); 878 879 Env = IsCOFF; 880 initCOFFMCObjectFileInfo(TT); 881 break; 882 case Triple::ELF: 883 Env = IsELF; 884 initELFMCObjectFileInfo(TT); 885 break; 886 case Triple::UnknownObjectFormat: 887 report_fatal_error("Cannot initialize MC for unknown object file format."); 888 break; 889 } 890 } 891 892 MCSection *MCObjectFileInfo::getDwarfTypesSection(uint64_t Hash) const { 893 return Ctx->getELFSection(".debug_types", ELF::SHT_PROGBITS, ELF::SHF_GROUP, 894 0, utostr(Hash)); 895 } 896