1 //===--- OSTargets.h - Declare OS target feature support --------*- C++ -*-===// 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 declares OS specific TargetInfo types. 10 //===----------------------------------------------------------------------===// 11 12 #ifndef LLVM_CLANG_LIB_BASIC_TARGETS_OSTARGETS_H 13 #define LLVM_CLANG_LIB_BASIC_TARGETS_OSTARGETS_H 14 15 #include "Targets.h" 16 #include "llvm/MC/MCSectionMachO.h" 17 18 namespace clang { 19 namespace targets { 20 21 template <typename TgtInfo> 22 class LLVM_LIBRARY_VISIBILITY OSTargetInfo : public TgtInfo { 23 protected: 24 virtual void getOSDefines(const LangOptions &Opts, const llvm::Triple &Triple, 25 MacroBuilder &Builder) const = 0; 26 27 public: 28 OSTargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts) 29 : TgtInfo(Triple, Opts) {} 30 31 void getTargetDefines(const LangOptions &Opts, 32 MacroBuilder &Builder) const override { 33 TgtInfo::getTargetDefines(Opts, Builder); 34 getOSDefines(Opts, TgtInfo::getTriple(), Builder); 35 } 36 }; 37 38 // CloudABI Target 39 template <typename Target> 40 class LLVM_LIBRARY_VISIBILITY CloudABITargetInfo : public OSTargetInfo<Target> { 41 protected: 42 void getOSDefines(const LangOptions &Opts, const llvm::Triple &Triple, 43 MacroBuilder &Builder) const override { 44 Builder.defineMacro("__CloudABI__"); 45 Builder.defineMacro("__ELF__"); 46 47 // CloudABI uses ISO/IEC 10646:2012 for wchar_t, char16_t and char32_t. 48 Builder.defineMacro("__STDC_ISO_10646__", "201206L"); 49 Builder.defineMacro("__STDC_UTF_16__"); 50 Builder.defineMacro("__STDC_UTF_32__"); 51 } 52 53 public: 54 CloudABITargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts) 55 : OSTargetInfo<Target>(Triple, Opts) {} 56 }; 57 58 // Ananas target 59 template <typename Target> 60 class LLVM_LIBRARY_VISIBILITY AnanasTargetInfo : public OSTargetInfo<Target> { 61 protected: 62 void getOSDefines(const LangOptions &Opts, const llvm::Triple &Triple, 63 MacroBuilder &Builder) const override { 64 // Ananas defines 65 Builder.defineMacro("__Ananas__"); 66 Builder.defineMacro("__ELF__"); 67 } 68 69 public: 70 AnanasTargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts) 71 : OSTargetInfo<Target>(Triple, Opts) {} 72 }; 73 74 void getDarwinDefines(MacroBuilder &Builder, const LangOptions &Opts, 75 const llvm::Triple &Triple, StringRef &PlatformName, 76 VersionTuple &PlatformMinVersion); 77 78 template <typename Target> 79 class LLVM_LIBRARY_VISIBILITY DarwinTargetInfo : public OSTargetInfo<Target> { 80 protected: 81 void getOSDefines(const LangOptions &Opts, const llvm::Triple &Triple, 82 MacroBuilder &Builder) const override { 83 getDarwinDefines(Builder, Opts, Triple, this->PlatformName, 84 this->PlatformMinVersion); 85 } 86 87 public: 88 DarwinTargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts) 89 : OSTargetInfo<Target>(Triple, Opts) { 90 // By default, no TLS, and we whitelist permitted architecture/OS 91 // combinations. 92 this->TLSSupported = false; 93 94 if (Triple.isMacOSX()) 95 this->TLSSupported = !Triple.isMacOSXVersionLT(10, 7); 96 else if (Triple.isiOS()) { 97 // 64-bit iOS supported it from 8 onwards, 32-bit device from 9 onwards, 98 // 32-bit simulator from 10 onwards. 99 if (Triple.isArch64Bit()) 100 this->TLSSupported = !Triple.isOSVersionLT(8); 101 else if (Triple.isArch32Bit()) { 102 if (!Triple.isSimulatorEnvironment()) 103 this->TLSSupported = !Triple.isOSVersionLT(9); 104 else 105 this->TLSSupported = !Triple.isOSVersionLT(10); 106 } 107 } else if (Triple.isWatchOS()) { 108 if (!Triple.isSimulatorEnvironment()) 109 this->TLSSupported = !Triple.isOSVersionLT(2); 110 else 111 this->TLSSupported = !Triple.isOSVersionLT(3); 112 } 113 114 this->MCountName = "\01mcount"; 115 } 116 117 std::string isValidSectionSpecifier(StringRef SR) const override { 118 // Let MCSectionMachO validate this. 119 StringRef Segment, Section; 120 unsigned TAA, StubSize; 121 bool HasTAA; 122 return llvm::MCSectionMachO::ParseSectionSpecifier(SR, Segment, Section, 123 TAA, HasTAA, StubSize); 124 } 125 126 const char *getStaticInitSectionSpecifier() const override { 127 // FIXME: We should return 0 when building kexts. 128 return "__TEXT,__StaticInit,regular,pure_instructions"; 129 } 130 131 /// Darwin does not support protected visibility. Darwin's "default" 132 /// is very similar to ELF's "protected"; Darwin requires a "weak" 133 /// attribute on declarations that can be dynamically replaced. 134 bool hasProtectedVisibility() const override { return false; } 135 136 unsigned getExnObjectAlignment() const override { 137 // Older versions of libc++abi guarantee an alignment of only 8-bytes for 138 // exception objects because of a bug in __cxa_exception that was 139 // eventually fixed in r319123. 140 llvm::VersionTuple MinVersion; 141 const llvm::Triple &T = this->getTriple(); 142 143 // Compute the earliest OS versions that have the fix to libc++abi. 144 switch (T.getOS()) { 145 case llvm::Triple::Darwin: 146 case llvm::Triple::MacOSX: // Earliest supporting version is 10.14. 147 MinVersion = llvm::VersionTuple(10U, 14U); 148 break; 149 case llvm::Triple::IOS: 150 case llvm::Triple::TvOS: // Earliest supporting version is 12.0.0. 151 MinVersion = llvm::VersionTuple(12U); 152 break; 153 case llvm::Triple::WatchOS: // Earliest supporting version is 5.0.0. 154 MinVersion = llvm::VersionTuple(5U); 155 break; 156 default: 157 llvm_unreachable("Unexpected OS"); 158 } 159 160 unsigned Major, Minor, Micro; 161 T.getOSVersion(Major, Minor, Micro); 162 if (llvm::VersionTuple(Major, Minor, Micro) < MinVersion) 163 return 64; 164 return OSTargetInfo<Target>::getExnObjectAlignment(); 165 } 166 167 TargetInfo::IntType getLeastIntTypeByWidth(unsigned BitWidth, 168 bool IsSigned) const final { 169 // Darwin uses `long long` for `int_least64_t` and `int_fast64_t`. 170 return BitWidth == 64 171 ? (IsSigned ? TargetInfo::SignedLongLong 172 : TargetInfo::UnsignedLongLong) 173 : TargetInfo::getLeastIntTypeByWidth(BitWidth, IsSigned); 174 } 175 }; 176 177 // DragonFlyBSD Target 178 template <typename Target> 179 class LLVM_LIBRARY_VISIBILITY DragonFlyBSDTargetInfo 180 : public OSTargetInfo<Target> { 181 protected: 182 void getOSDefines(const LangOptions &Opts, const llvm::Triple &Triple, 183 MacroBuilder &Builder) const override { 184 // DragonFly defines; list based off of gcc output 185 Builder.defineMacro("__DragonFly__"); 186 Builder.defineMacro("__DragonFly_cc_version", "100001"); 187 Builder.defineMacro("__ELF__"); 188 Builder.defineMacro("__KPRINTF_ATTRIBUTE__"); 189 Builder.defineMacro("__tune_i386__"); 190 DefineStd(Builder, "unix", Opts); 191 } 192 193 public: 194 DragonFlyBSDTargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts) 195 : OSTargetInfo<Target>(Triple, Opts) { 196 switch (Triple.getArch()) { 197 default: 198 case llvm::Triple::x86: 199 case llvm::Triple::x86_64: 200 this->MCountName = ".mcount"; 201 break; 202 } 203 } 204 }; 205 206 #ifndef FREEBSD_CC_VERSION 207 #define FREEBSD_CC_VERSION 0U 208 #endif 209 210 // FreeBSD Target 211 template <typename Target> 212 class LLVM_LIBRARY_VISIBILITY FreeBSDTargetInfo : public OSTargetInfo<Target> { 213 protected: 214 void getOSDefines(const LangOptions &Opts, const llvm::Triple &Triple, 215 MacroBuilder &Builder) const override { 216 // FreeBSD defines; list based off of gcc output 217 218 unsigned Release = Triple.getOSMajorVersion(); 219 if (Release == 0U) 220 Release = 8U; 221 unsigned CCVersion = FREEBSD_CC_VERSION; 222 if (CCVersion == 0U) 223 CCVersion = Release * 100000U + 1U; 224 225 Builder.defineMacro("__FreeBSD__", Twine(Release)); 226 Builder.defineMacro("__FreeBSD_cc_version", Twine(CCVersion)); 227 Builder.defineMacro("__KPRINTF_ATTRIBUTE__"); 228 DefineStd(Builder, "unix", Opts); 229 Builder.defineMacro("__ELF__"); 230 231 // On FreeBSD, wchar_t contains the number of the code point as 232 // used by the character set of the locale. These character sets are 233 // not necessarily a superset of ASCII. 234 // 235 // FIXME: This is wrong; the macro refers to the numerical values 236 // of wchar_t *literals*, which are not locale-dependent. However, 237 // FreeBSD systems apparently depend on us getting this wrong, and 238 // setting this to 1 is conforming even if all the basic source 239 // character literals have the same encoding as char and wchar_t. 240 Builder.defineMacro("__STDC_MB_MIGHT_NEQ_WC__", "1"); 241 } 242 243 public: 244 FreeBSDTargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts) 245 : OSTargetInfo<Target>(Triple, Opts) { 246 switch (Triple.getArch()) { 247 default: 248 case llvm::Triple::x86: 249 case llvm::Triple::x86_64: 250 this->MCountName = ".mcount"; 251 break; 252 case llvm::Triple::mips: 253 case llvm::Triple::mipsel: 254 case llvm::Triple::ppc: 255 case llvm::Triple::ppc64: 256 case llvm::Triple::ppc64le: 257 this->MCountName = "_mcount"; 258 break; 259 case llvm::Triple::arm: 260 this->MCountName = "__mcount"; 261 break; 262 } 263 } 264 }; 265 266 // GNU/kFreeBSD Target 267 template <typename Target> 268 class LLVM_LIBRARY_VISIBILITY KFreeBSDTargetInfo : public OSTargetInfo<Target> { 269 protected: 270 void getOSDefines(const LangOptions &Opts, const llvm::Triple &Triple, 271 MacroBuilder &Builder) const override { 272 // GNU/kFreeBSD defines; list based off of gcc output 273 274 DefineStd(Builder, "unix", Opts); 275 Builder.defineMacro("__FreeBSD_kernel__"); 276 Builder.defineMacro("__GLIBC__"); 277 Builder.defineMacro("__ELF__"); 278 if (Opts.POSIXThreads) 279 Builder.defineMacro("_REENTRANT"); 280 if (Opts.CPlusPlus) 281 Builder.defineMacro("_GNU_SOURCE"); 282 } 283 284 public: 285 KFreeBSDTargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts) 286 : OSTargetInfo<Target>(Triple, Opts) {} 287 }; 288 289 // Haiku Target 290 template <typename Target> 291 class LLVM_LIBRARY_VISIBILITY HaikuTargetInfo : public OSTargetInfo<Target> { 292 protected: 293 void getOSDefines(const LangOptions &Opts, const llvm::Triple &Triple, 294 MacroBuilder &Builder) const override { 295 // Haiku defines; list based off of gcc output 296 Builder.defineMacro("__HAIKU__"); 297 Builder.defineMacro("__ELF__"); 298 DefineStd(Builder, "unix", Opts); 299 if (this->HasFloat128) 300 Builder.defineMacro("__FLOAT128__"); 301 } 302 303 public: 304 HaikuTargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts) 305 : OSTargetInfo<Target>(Triple, Opts) { 306 this->SizeType = TargetInfo::UnsignedLong; 307 this->IntPtrType = TargetInfo::SignedLong; 308 this->PtrDiffType = TargetInfo::SignedLong; 309 this->ProcessIDType = TargetInfo::SignedLong; 310 this->TLSSupported = false; 311 switch (Triple.getArch()) { 312 default: 313 break; 314 case llvm::Triple::x86: 315 case llvm::Triple::x86_64: 316 this->HasFloat128 = true; 317 break; 318 } 319 } 320 }; 321 322 // Hurd target 323 template <typename Target> 324 class LLVM_LIBRARY_VISIBILITY HurdTargetInfo : public OSTargetInfo<Target> { 325 protected: 326 void getOSDefines(const LangOptions &Opts, const llvm::Triple &Triple, 327 MacroBuilder &Builder) const override { 328 // Hurd defines; list based off of gcc output. 329 DefineStd(Builder, "unix", Opts); 330 Builder.defineMacro("__GNU__"); 331 Builder.defineMacro("__gnu_hurd__"); 332 Builder.defineMacro("__MACH__"); 333 Builder.defineMacro("__GLIBC__"); 334 Builder.defineMacro("__ELF__"); 335 if (Opts.POSIXThreads) 336 Builder.defineMacro("_REENTRANT"); 337 if (Opts.CPlusPlus) 338 Builder.defineMacro("_GNU_SOURCE"); 339 } 340 public: 341 HurdTargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts) 342 : OSTargetInfo<Target>(Triple, Opts) {} 343 }; 344 345 // Minix Target 346 template <typename Target> 347 class LLVM_LIBRARY_VISIBILITY MinixTargetInfo : public OSTargetInfo<Target> { 348 protected: 349 void getOSDefines(const LangOptions &Opts, const llvm::Triple &Triple, 350 MacroBuilder &Builder) const override { 351 // Minix defines 352 353 Builder.defineMacro("__minix", "3"); 354 Builder.defineMacro("_EM_WSIZE", "4"); 355 Builder.defineMacro("_EM_PSIZE", "4"); 356 Builder.defineMacro("_EM_SSIZE", "2"); 357 Builder.defineMacro("_EM_LSIZE", "4"); 358 Builder.defineMacro("_EM_FSIZE", "4"); 359 Builder.defineMacro("_EM_DSIZE", "8"); 360 Builder.defineMacro("__ELF__"); 361 DefineStd(Builder, "unix", Opts); 362 } 363 364 public: 365 MinixTargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts) 366 : OSTargetInfo<Target>(Triple, Opts) {} 367 }; 368 369 // Linux target 370 template <typename Target> 371 class LLVM_LIBRARY_VISIBILITY LinuxTargetInfo : public OSTargetInfo<Target> { 372 protected: 373 void getOSDefines(const LangOptions &Opts, const llvm::Triple &Triple, 374 MacroBuilder &Builder) const override { 375 // Linux defines; list based off of gcc output 376 DefineStd(Builder, "unix", Opts); 377 DefineStd(Builder, "linux", Opts); 378 Builder.defineMacro("__ELF__"); 379 if (Triple.isAndroid()) { 380 Builder.defineMacro("__ANDROID__", "1"); 381 unsigned Maj, Min, Rev; 382 Triple.getEnvironmentVersion(Maj, Min, Rev); 383 this->PlatformName = "android"; 384 this->PlatformMinVersion = VersionTuple(Maj, Min, Rev); 385 if (Maj) 386 Builder.defineMacro("__ANDROID_API__", Twine(Maj)); 387 } else { 388 Builder.defineMacro("__gnu_linux__"); 389 } 390 if (Opts.POSIXThreads) 391 Builder.defineMacro("_REENTRANT"); 392 if (Opts.CPlusPlus) 393 Builder.defineMacro("_GNU_SOURCE"); 394 if (this->HasFloat128) 395 Builder.defineMacro("__FLOAT128__"); 396 } 397 398 public: 399 LinuxTargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts) 400 : OSTargetInfo<Target>(Triple, Opts) { 401 this->WIntType = TargetInfo::UnsignedInt; 402 403 switch (Triple.getArch()) { 404 default: 405 break; 406 case llvm::Triple::mips: 407 case llvm::Triple::mipsel: 408 case llvm::Triple::mips64: 409 case llvm::Triple::mips64el: 410 case llvm::Triple::ppc: 411 case llvm::Triple::ppc64: 412 case llvm::Triple::ppc64le: 413 this->MCountName = "_mcount"; 414 break; 415 case llvm::Triple::x86: 416 case llvm::Triple::x86_64: 417 this->HasFloat128 = true; 418 break; 419 } 420 } 421 422 const char *getStaticInitSectionSpecifier() const override { 423 return ".text.startup"; 424 } 425 }; 426 427 // NetBSD Target 428 template <typename Target> 429 class LLVM_LIBRARY_VISIBILITY NetBSDTargetInfo : public OSTargetInfo<Target> { 430 protected: 431 void getOSDefines(const LangOptions &Opts, const llvm::Triple &Triple, 432 MacroBuilder &Builder) const override { 433 // NetBSD defines; list based off of gcc output 434 Builder.defineMacro("__NetBSD__"); 435 Builder.defineMacro("__unix__"); 436 Builder.defineMacro("__ELF__"); 437 if (Opts.POSIXThreads) 438 Builder.defineMacro("_REENTRANT"); 439 } 440 441 public: 442 NetBSDTargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts) 443 : OSTargetInfo<Target>(Triple, Opts) { 444 this->MCountName = "__mcount"; 445 } 446 }; 447 448 // OpenBSD Target 449 template <typename Target> 450 class LLVM_LIBRARY_VISIBILITY OpenBSDTargetInfo : public OSTargetInfo<Target> { 451 protected: 452 void getOSDefines(const LangOptions &Opts, const llvm::Triple &Triple, 453 MacroBuilder &Builder) const override { 454 // OpenBSD defines; list based off of gcc output 455 456 Builder.defineMacro("__OpenBSD__"); 457 DefineStd(Builder, "unix", Opts); 458 Builder.defineMacro("__ELF__"); 459 if (Opts.POSIXThreads) 460 Builder.defineMacro("_REENTRANT"); 461 if (this->HasFloat128) 462 Builder.defineMacro("__FLOAT128__"); 463 } 464 465 public: 466 OpenBSDTargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts) 467 : OSTargetInfo<Target>(Triple, Opts) { 468 switch (Triple.getArch()) { 469 case llvm::Triple::x86: 470 case llvm::Triple::x86_64: 471 this->HasFloat128 = true; 472 LLVM_FALLTHROUGH; 473 default: 474 this->MCountName = "__mcount"; 475 break; 476 case llvm::Triple::mips64: 477 case llvm::Triple::mips64el: 478 case llvm::Triple::ppc: 479 case llvm::Triple::sparcv9: 480 this->MCountName = "_mcount"; 481 break; 482 } 483 } 484 }; 485 486 // PSP Target 487 template <typename Target> 488 class LLVM_LIBRARY_VISIBILITY PSPTargetInfo : public OSTargetInfo<Target> { 489 protected: 490 void getOSDefines(const LangOptions &Opts, const llvm::Triple &Triple, 491 MacroBuilder &Builder) const override { 492 // PSP defines; list based on the output of the pspdev gcc toolchain. 493 Builder.defineMacro("PSP"); 494 Builder.defineMacro("_PSP"); 495 Builder.defineMacro("__psp__"); 496 Builder.defineMacro("__ELF__"); 497 } 498 499 public: 500 PSPTargetInfo(const llvm::Triple &Triple) : OSTargetInfo<Target>(Triple) {} 501 }; 502 503 // PS3 PPU Target 504 template <typename Target> 505 class LLVM_LIBRARY_VISIBILITY PS3PPUTargetInfo : public OSTargetInfo<Target> { 506 protected: 507 void getOSDefines(const LangOptions &Opts, const llvm::Triple &Triple, 508 MacroBuilder &Builder) const override { 509 // PS3 PPU defines. 510 Builder.defineMacro("__PPC__"); 511 Builder.defineMacro("__PPU__"); 512 Builder.defineMacro("__CELLOS_LV2__"); 513 Builder.defineMacro("__ELF__"); 514 Builder.defineMacro("__LP32__"); 515 Builder.defineMacro("_ARCH_PPC64"); 516 Builder.defineMacro("__powerpc64__"); 517 } 518 519 public: 520 PS3PPUTargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts) 521 : OSTargetInfo<Target>(Triple, Opts) { 522 this->LongWidth = this->LongAlign = 32; 523 this->PointerWidth = this->PointerAlign = 32; 524 this->IntMaxType = TargetInfo::SignedLongLong; 525 this->Int64Type = TargetInfo::SignedLongLong; 526 this->SizeType = TargetInfo::UnsignedInt; 527 this->resetDataLayout("E-m:e-p:32:32-i64:64-n32:64"); 528 } 529 }; 530 531 template <typename Target> 532 class LLVM_LIBRARY_VISIBILITY PS4OSTargetInfo : public OSTargetInfo<Target> { 533 protected: 534 void getOSDefines(const LangOptions &Opts, const llvm::Triple &Triple, 535 MacroBuilder &Builder) const override { 536 Builder.defineMacro("__FreeBSD__", "9"); 537 Builder.defineMacro("__FreeBSD_cc_version", "900001"); 538 Builder.defineMacro("__KPRINTF_ATTRIBUTE__"); 539 DefineStd(Builder, "unix", Opts); 540 Builder.defineMacro("__ELF__"); 541 Builder.defineMacro("__ORBIS__"); 542 } 543 544 public: 545 PS4OSTargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts) 546 : OSTargetInfo<Target>(Triple, Opts) { 547 this->WCharType = TargetInfo::UnsignedShort; 548 549 // On PS4, TLS variable cannot be aligned to more than 32 bytes (256 bits). 550 this->MaxTLSAlign = 256; 551 552 // On PS4, do not honor explicit bit field alignment, 553 // as in "__attribute__((aligned(2))) int b : 1;". 554 this->UseExplicitBitFieldAlignment = false; 555 556 switch (Triple.getArch()) { 557 default: 558 case llvm::Triple::x86_64: 559 this->MCountName = ".mcount"; 560 this->NewAlign = 256; 561 break; 562 } 563 } 564 }; 565 566 // RTEMS Target 567 template <typename Target> 568 class LLVM_LIBRARY_VISIBILITY RTEMSTargetInfo : public OSTargetInfo<Target> { 569 protected: 570 void getOSDefines(const LangOptions &Opts, const llvm::Triple &Triple, 571 MacroBuilder &Builder) const override { 572 // RTEMS defines; list based off of gcc output 573 574 Builder.defineMacro("__rtems__"); 575 Builder.defineMacro("__ELF__"); 576 if (Opts.CPlusPlus) 577 Builder.defineMacro("_GNU_SOURCE"); 578 } 579 580 public: 581 RTEMSTargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts) 582 : OSTargetInfo<Target>(Triple, Opts) { 583 switch (Triple.getArch()) { 584 default: 585 case llvm::Triple::x86: 586 // this->MCountName = ".mcount"; 587 break; 588 case llvm::Triple::mips: 589 case llvm::Triple::mipsel: 590 case llvm::Triple::ppc: 591 case llvm::Triple::ppc64: 592 case llvm::Triple::ppc64le: 593 // this->MCountName = "_mcount"; 594 break; 595 case llvm::Triple::arm: 596 // this->MCountName = "__mcount"; 597 break; 598 } 599 } 600 }; 601 602 // Solaris target 603 template <typename Target> 604 class LLVM_LIBRARY_VISIBILITY SolarisTargetInfo : public OSTargetInfo<Target> { 605 protected: 606 void getOSDefines(const LangOptions &Opts, const llvm::Triple &Triple, 607 MacroBuilder &Builder) const override { 608 DefineStd(Builder, "sun", Opts); 609 DefineStd(Builder, "unix", Opts); 610 Builder.defineMacro("__ELF__"); 611 Builder.defineMacro("__svr4__"); 612 Builder.defineMacro("__SVR4"); 613 // Solaris headers require _XOPEN_SOURCE to be set to 600 for C99 and 614 // newer, but to 500 for everything else. feature_test.h has a check to 615 // ensure that you are not using C99 with an old version of X/Open or C89 616 // with a new version. 617 if (Opts.C99) 618 Builder.defineMacro("_XOPEN_SOURCE", "600"); 619 else 620 Builder.defineMacro("_XOPEN_SOURCE", "500"); 621 if (Opts.CPlusPlus) { 622 Builder.defineMacro("__C99FEATURES__"); 623 Builder.defineMacro("_FILE_OFFSET_BITS", "64"); 624 } 625 // GCC restricts the next two to C++. 626 Builder.defineMacro("_LARGEFILE_SOURCE"); 627 Builder.defineMacro("_LARGEFILE64_SOURCE"); 628 Builder.defineMacro("__EXTENSIONS__"); 629 if (Opts.POSIXThreads) 630 Builder.defineMacro("_REENTRANT"); 631 if (this->HasFloat128) 632 Builder.defineMacro("__FLOAT128__"); 633 } 634 635 public: 636 SolarisTargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts) 637 : OSTargetInfo<Target>(Triple, Opts) { 638 if (this->PointerWidth == 64) { 639 this->WCharType = this->WIntType = this->SignedInt; 640 } else { 641 this->WCharType = this->WIntType = this->SignedLong; 642 } 643 switch (Triple.getArch()) { 644 default: 645 break; 646 case llvm::Triple::x86: 647 case llvm::Triple::x86_64: 648 this->HasFloat128 = true; 649 break; 650 } 651 } 652 }; 653 654 // AIX Target 655 template <typename Target> 656 class AIXTargetInfo : public OSTargetInfo<Target> { 657 protected: 658 void getOSDefines(const LangOptions &Opts, const llvm::Triple &Triple, 659 MacroBuilder &Builder) const override { 660 DefineStd(Builder, "unix", Opts); 661 Builder.defineMacro("_IBMR2"); 662 Builder.defineMacro("_POWER"); 663 664 Builder.defineMacro("_AIX"); 665 666 unsigned Major, Minor, Micro; 667 Triple.getOSVersion(Major, Minor, Micro); 668 669 // Define AIX OS-Version Macros. 670 // Includes logic for legacy versions of AIX; no specific intent to support. 671 std::pair<int, int> OsVersion = {Major, Minor}; 672 if (OsVersion >= std::make_pair(3, 2)) Builder.defineMacro("_AIX32"); 673 if (OsVersion >= std::make_pair(4, 1)) Builder.defineMacro("_AIX41"); 674 if (OsVersion >= std::make_pair(4, 3)) Builder.defineMacro("_AIX43"); 675 if (OsVersion >= std::make_pair(5, 0)) Builder.defineMacro("_AIX50"); 676 if (OsVersion >= std::make_pair(5, 1)) Builder.defineMacro("_AIX51"); 677 if (OsVersion >= std::make_pair(5, 2)) Builder.defineMacro("_AIX52"); 678 if (OsVersion >= std::make_pair(5, 3)) Builder.defineMacro("_AIX53"); 679 if (OsVersion >= std::make_pair(6, 1)) Builder.defineMacro("_AIX61"); 680 if (OsVersion >= std::make_pair(7, 1)) Builder.defineMacro("_AIX71"); 681 if (OsVersion >= std::make_pair(7, 2)) Builder.defineMacro("_AIX72"); 682 683 // FIXME: Do not define _LONG_LONG when -fno-long-long is specified. 684 Builder.defineMacro("_LONG_LONG"); 685 686 if (Opts.POSIXThreads) { 687 Builder.defineMacro("_THREAD_SAFE"); 688 } 689 690 if (this->PointerWidth == 64) { 691 Builder.defineMacro("__64BIT__"); 692 } 693 694 // Define _WCHAR_T when it is a fundamental type 695 // (i.e., for C++ without -fno-wchar). 696 if (Opts.CPlusPlus && Opts.WChar) { 697 Builder.defineMacro("_WCHAR_T"); 698 } 699 } 700 701 public: 702 AIXTargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts) 703 : OSTargetInfo<Target>(Triple, Opts) { 704 if (this->PointerWidth == 64) { 705 this->WCharType = this->UnsignedInt; 706 } else { 707 this->WCharType = this->UnsignedShort; 708 } 709 this->UseZeroLengthBitfieldAlignment = true; 710 } 711 712 // AIX sets FLT_EVAL_METHOD to be 1. 713 unsigned getFloatEvalMethod() const override { return 1; } 714 bool hasInt128Type() const override { return false; } 715 }; 716 717 void addWindowsDefines(const llvm::Triple &Triple, const LangOptions &Opts, 718 MacroBuilder &Builder); 719 720 // Windows target 721 template <typename Target> 722 class LLVM_LIBRARY_VISIBILITY WindowsTargetInfo : public OSTargetInfo<Target> { 723 protected: 724 void getOSDefines(const LangOptions &Opts, const llvm::Triple &Triple, 725 MacroBuilder &Builder) const override { 726 addWindowsDefines(Triple, Opts, Builder); 727 } 728 729 public: 730 WindowsTargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts) 731 : OSTargetInfo<Target>(Triple, Opts) { 732 this->WCharType = TargetInfo::UnsignedShort; 733 this->WIntType = TargetInfo::UnsignedShort; 734 } 735 }; 736 737 template <typename Target> 738 class LLVM_LIBRARY_VISIBILITY NaClTargetInfo : public OSTargetInfo<Target> { 739 protected: 740 void getOSDefines(const LangOptions &Opts, const llvm::Triple &Triple, 741 MacroBuilder &Builder) const override { 742 if (Opts.POSIXThreads) 743 Builder.defineMacro("_REENTRANT"); 744 if (Opts.CPlusPlus) 745 Builder.defineMacro("_GNU_SOURCE"); 746 747 DefineStd(Builder, "unix", Opts); 748 Builder.defineMacro("__ELF__"); 749 Builder.defineMacro("__native_client__"); 750 } 751 752 public: 753 NaClTargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts) 754 : OSTargetInfo<Target>(Triple, Opts) { 755 this->LongAlign = 32; 756 this->LongWidth = 32; 757 this->PointerAlign = 32; 758 this->PointerWidth = 32; 759 this->IntMaxType = TargetInfo::SignedLongLong; 760 this->Int64Type = TargetInfo::SignedLongLong; 761 this->DoubleAlign = 64; 762 this->LongDoubleWidth = 64; 763 this->LongDoubleAlign = 64; 764 this->LongLongWidth = 64; 765 this->LongLongAlign = 64; 766 this->SizeType = TargetInfo::UnsignedInt; 767 this->PtrDiffType = TargetInfo::SignedInt; 768 this->IntPtrType = TargetInfo::SignedInt; 769 // RegParmMax is inherited from the underlying architecture. 770 this->LongDoubleFormat = &llvm::APFloat::IEEEdouble(); 771 if (Triple.getArch() == llvm::Triple::arm) { 772 // Handled in ARM's setABI(). 773 } else if (Triple.getArch() == llvm::Triple::x86) { 774 this->resetDataLayout("e-m:e-p:32:32-i64:64-n8:16:32-S128"); 775 } else if (Triple.getArch() == llvm::Triple::x86_64) { 776 this->resetDataLayout("e-m:e-p:32:32-i64:64-n8:16:32:64-S128"); 777 } else if (Triple.getArch() == llvm::Triple::mipsel) { 778 // Handled on mips' setDataLayout. 779 } else { 780 assert(Triple.getArch() == llvm::Triple::le32); 781 this->resetDataLayout("e-p:32:32-i64:64"); 782 } 783 } 784 }; 785 786 // Fuchsia Target 787 template <typename Target> 788 class LLVM_LIBRARY_VISIBILITY FuchsiaTargetInfo : public OSTargetInfo<Target> { 789 protected: 790 void getOSDefines(const LangOptions &Opts, const llvm::Triple &Triple, 791 MacroBuilder &Builder) const override { 792 Builder.defineMacro("__Fuchsia__"); 793 Builder.defineMacro("__ELF__"); 794 if (Opts.POSIXThreads) 795 Builder.defineMacro("_REENTRANT"); 796 // Required by the libc++ locale support. 797 if (Opts.CPlusPlus) 798 Builder.defineMacro("_GNU_SOURCE"); 799 } 800 801 public: 802 FuchsiaTargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts) 803 : OSTargetInfo<Target>(Triple, Opts) { 804 this->MCountName = "__mcount"; 805 } 806 }; 807 808 // WebAssembly target 809 template <typename Target> 810 class LLVM_LIBRARY_VISIBILITY WebAssemblyOSTargetInfo 811 : public OSTargetInfo<Target> { 812 protected: 813 void getOSDefines(const LangOptions &Opts, const llvm::Triple &Triple, 814 MacroBuilder &Builder) const { 815 // A common platform macro. 816 if (Opts.POSIXThreads) 817 Builder.defineMacro("_REENTRANT"); 818 // Follow g++ convention and predefine _GNU_SOURCE for C++. 819 if (Opts.CPlusPlus) 820 Builder.defineMacro("_GNU_SOURCE"); 821 // Indicate that we have __float128. 822 Builder.defineMacro("__FLOAT128__"); 823 } 824 825 public: 826 explicit WebAssemblyOSTargetInfo(const llvm::Triple &Triple, 827 const TargetOptions &Opts) 828 : OSTargetInfo<Target>(Triple, Opts) { 829 this->MCountName = "__mcount"; 830 this->TheCXXABI.set(TargetCXXABI::WebAssembly); 831 this->HasFloat128 = true; 832 } 833 }; 834 835 // WASI target 836 template <typename Target> 837 class LLVM_LIBRARY_VISIBILITY WASITargetInfo 838 : public WebAssemblyOSTargetInfo<Target> { 839 void getOSDefines(const LangOptions &Opts, const llvm::Triple &Triple, 840 MacroBuilder &Builder) const final { 841 WebAssemblyOSTargetInfo<Target>::getOSDefines(Opts, Triple, Builder); 842 Builder.defineMacro("__wasi__"); 843 } 844 845 public: 846 explicit WASITargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts) 847 : WebAssemblyOSTargetInfo<Target>(Triple, Opts) {} 848 }; 849 850 // Emscripten target 851 template <typename Target> 852 class LLVM_LIBRARY_VISIBILITY EmscriptenTargetInfo 853 : public WebAssemblyOSTargetInfo<Target> { 854 void getOSDefines(const LangOptions &Opts, const llvm::Triple &Triple, 855 MacroBuilder &Builder) const final { 856 WebAssemblyOSTargetInfo<Target>::getOSDefines(Opts, Triple, Builder); 857 Builder.defineMacro("__EMSCRIPTEN__"); 858 } 859 860 public: 861 explicit EmscriptenTargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts) 862 : WebAssemblyOSTargetInfo<Target>(Triple, Opts) {} 863 }; 864 865 } // namespace targets 866 } // namespace clang 867 #endif // LLVM_CLANG_LIB_BASIC_TARGETS_OSTARGETS_H 868