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 17 namespace clang { 18 namespace targets { 19 20 template <typename TgtInfo> 21 class LLVM_LIBRARY_VISIBILITY OSTargetInfo : public TgtInfo { 22 protected: 23 virtual void getOSDefines(const LangOptions &Opts, const llvm::Triple &Triple, 24 MacroBuilder &Builder) const = 0; 25 26 public: 27 OSTargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts) 28 : TgtInfo(Triple, Opts) {} 29 30 void getTargetDefines(const LangOptions &Opts, 31 MacroBuilder &Builder) const override { 32 TgtInfo::getTargetDefines(Opts, Builder); 33 getOSDefines(Opts, TgtInfo::getTriple(), Builder); 34 } 35 }; 36 37 void getDarwinDefines(MacroBuilder &Builder, const LangOptions &Opts, 38 const llvm::Triple &Triple, StringRef &PlatformName, 39 VersionTuple &PlatformMinVersion); 40 41 template <typename Target> 42 class LLVM_LIBRARY_VISIBILITY DarwinTargetInfo : public OSTargetInfo<Target> { 43 protected: 44 void getOSDefines(const LangOptions &Opts, const llvm::Triple &Triple, 45 MacroBuilder &Builder) const override { 46 getDarwinDefines(Builder, Opts, Triple, this->PlatformName, 47 this->PlatformMinVersion); 48 } 49 50 public: 51 DarwinTargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts) 52 : OSTargetInfo<Target>(Triple, Opts) { 53 // By default, no TLS, and we list permitted architecture/OS 54 // combinations. 55 this->TLSSupported = false; 56 57 if (Triple.isMacOSX()) 58 this->TLSSupported = !Triple.isMacOSXVersionLT(10, 7); 59 else if (Triple.isiOS()) { 60 // 64-bit iOS supported it from 8 onwards, 32-bit device from 9 onwards, 61 // 32-bit simulator from 10 onwards. 62 if (Triple.isArch64Bit()) 63 this->TLSSupported = !Triple.isOSVersionLT(8); 64 else if (Triple.isArch32Bit()) { 65 if (!Triple.isSimulatorEnvironment()) 66 this->TLSSupported = !Triple.isOSVersionLT(9); 67 else 68 this->TLSSupported = !Triple.isOSVersionLT(10); 69 } 70 } else if (Triple.isWatchOS()) { 71 if (!Triple.isSimulatorEnvironment()) 72 this->TLSSupported = !Triple.isOSVersionLT(2); 73 else 74 this->TLSSupported = !Triple.isOSVersionLT(3); 75 } else if (Triple.isDriverKit()) { 76 // No TLS on DriverKit. 77 } else if (Triple.isXROS()) 78 this->TLSSupported = true; 79 80 this->MCountName = "\01mcount"; 81 } 82 83 const char *getStaticInitSectionSpecifier() const override { 84 // FIXME: We should return 0 when building kexts. 85 return "__TEXT,__StaticInit,regular,pure_instructions"; 86 } 87 88 /// Darwin does not support protected visibility. Darwin's "default" 89 /// is very similar to ELF's "protected"; Darwin requires a "weak" 90 /// attribute on declarations that can be dynamically replaced. 91 bool hasProtectedVisibility() const override { return false; } 92 93 unsigned getExnObjectAlignment() const override { 94 // Older versions of libc++abi guarantee an alignment of only 8-bytes for 95 // exception objects because of a bug in __cxa_exception that was 96 // eventually fixed in r319123. 97 llvm::VersionTuple MinVersion; 98 const llvm::Triple &T = this->getTriple(); 99 100 // Compute the earliest OS versions that have the fix to libc++abi. 101 switch (T.getOS()) { 102 case llvm::Triple::Darwin: 103 case llvm::Triple::MacOSX: // Earliest supporting version is 10.14. 104 MinVersion = llvm::VersionTuple(10U, 14U); 105 break; 106 case llvm::Triple::IOS: 107 case llvm::Triple::TvOS: // Earliest supporting version is 12.0.0. 108 MinVersion = llvm::VersionTuple(12U); 109 break; 110 case llvm::Triple::WatchOS: // Earliest supporting version is 5.0.0. 111 MinVersion = llvm::VersionTuple(5U); 112 break; 113 case llvm::Triple::XROS: 114 MinVersion = llvm::VersionTuple(0); 115 break; 116 default: 117 // Conservatively return 8 bytes if OS is unknown. 118 return 64; 119 } 120 121 if (T.getOSVersion() < MinVersion) 122 return 64; 123 return OSTargetInfo<Target>::getExnObjectAlignment(); 124 } 125 126 TargetInfo::IntType getLeastIntTypeByWidth(unsigned BitWidth, 127 bool IsSigned) const final { 128 // Darwin uses `long long` for `int_least64_t` and `int_fast64_t`. 129 return BitWidth == 64 130 ? (IsSigned ? TargetInfo::SignedLongLong 131 : TargetInfo::UnsignedLongLong) 132 : TargetInfo::getLeastIntTypeByWidth(BitWidth, IsSigned); 133 } 134 135 bool areDefaultedSMFStillPOD(const LangOptions &) const override { 136 return false; 137 } 138 }; 139 140 // DragonFlyBSD Target 141 template <typename Target> 142 class LLVM_LIBRARY_VISIBILITY DragonFlyBSDTargetInfo 143 : public OSTargetInfo<Target> { 144 protected: 145 void getOSDefines(const LangOptions &Opts, const llvm::Triple &Triple, 146 MacroBuilder &Builder) const override { 147 // DragonFly defines; list based off of gcc output 148 Builder.defineMacro("__DragonFly__"); 149 Builder.defineMacro("__DragonFly_cc_version", "100001"); 150 Builder.defineMacro("__KPRINTF_ATTRIBUTE__"); 151 Builder.defineMacro("__tune_i386__"); 152 DefineStd(Builder, "unix", Opts); 153 if (this->HasFloat128) 154 Builder.defineMacro("__FLOAT128__"); 155 } 156 157 public: 158 DragonFlyBSDTargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts) 159 : OSTargetInfo<Target>(Triple, Opts) { 160 switch (Triple.getArch()) { 161 default: 162 case llvm::Triple::x86: 163 case llvm::Triple::x86_64: 164 this->HasFloat128 = true; 165 this->MCountName = ".mcount"; 166 break; 167 } 168 } 169 }; 170 171 #ifndef FREEBSD_CC_VERSION 172 #define FREEBSD_CC_VERSION 0U 173 #endif 174 175 // FreeBSD Target 176 template <typename Target> 177 class LLVM_LIBRARY_VISIBILITY FreeBSDTargetInfo : public OSTargetInfo<Target> { 178 protected: 179 void getOSDefines(const LangOptions &Opts, const llvm::Triple &Triple, 180 MacroBuilder &Builder) const override { 181 // FreeBSD defines; list based off of gcc output 182 183 unsigned Release = Triple.getOSMajorVersion(); 184 if (Release == 0U) 185 Release = 8U; 186 unsigned CCVersion = FREEBSD_CC_VERSION; 187 if (CCVersion == 0U) 188 CCVersion = Release * 100000U + 1U; 189 190 Builder.defineMacro("__FreeBSD__", Twine(Release)); 191 Builder.defineMacro("__FreeBSD_cc_version", Twine(CCVersion)); 192 Builder.defineMacro("__KPRINTF_ATTRIBUTE__"); 193 DefineStd(Builder, "unix", Opts); 194 if (this->HasFloat128) 195 Builder.defineMacro("__FLOAT128__"); 196 197 // On FreeBSD, wchar_t contains the number of the code point as 198 // used by the character set of the locale. These character sets are 199 // not necessarily a superset of ASCII. 200 // 201 // FIXME: This is wrong; the macro refers to the numerical values 202 // of wchar_t *literals*, which are not locale-dependent. However, 203 // FreeBSD systems apparently depend on us getting this wrong, and 204 // setting this to 1 is conforming even if all the basic source 205 // character literals have the same encoding as char and wchar_t. 206 Builder.defineMacro("__STDC_MB_MIGHT_NEQ_WC__", "1"); 207 } 208 209 public: 210 FreeBSDTargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts) 211 : OSTargetInfo<Target>(Triple, Opts) { 212 switch (Triple.getArch()) { 213 case llvm::Triple::x86: 214 case llvm::Triple::x86_64: 215 this->HasFloat128 = true; 216 [[fallthrough]]; 217 default: 218 this->MCountName = ".mcount"; 219 break; 220 case llvm::Triple::mips: 221 case llvm::Triple::mipsel: 222 case llvm::Triple::ppc: 223 case llvm::Triple::ppcle: 224 case llvm::Triple::ppc64: 225 case llvm::Triple::ppc64le: 226 this->MCountName = "_mcount"; 227 break; 228 case llvm::Triple::arm: 229 this->MCountName = "__mcount"; 230 break; 231 case llvm::Triple::riscv32: 232 case llvm::Triple::riscv64: 233 break; 234 } 235 } 236 }; 237 238 // GNU/kFreeBSD Target 239 template <typename Target> 240 class LLVM_LIBRARY_VISIBILITY KFreeBSDTargetInfo : public OSTargetInfo<Target> { 241 protected: 242 void getOSDefines(const LangOptions &Opts, const llvm::Triple &Triple, 243 MacroBuilder &Builder) const override { 244 // GNU/kFreeBSD defines; list based off of gcc output 245 246 DefineStd(Builder, "unix", Opts); 247 Builder.defineMacro("__FreeBSD_kernel__"); 248 Builder.defineMacro("__GLIBC__"); 249 if (Opts.POSIXThreads) 250 Builder.defineMacro("_REENTRANT"); 251 if (Opts.CPlusPlus) 252 Builder.defineMacro("_GNU_SOURCE"); 253 } 254 255 public: 256 using OSTargetInfo<Target>::OSTargetInfo; 257 }; 258 259 // Haiku Target 260 template <typename Target> 261 class LLVM_LIBRARY_VISIBILITY HaikuTargetInfo : public OSTargetInfo<Target> { 262 protected: 263 void getOSDefines(const LangOptions &Opts, const llvm::Triple &Triple, 264 MacroBuilder &Builder) const override { 265 // Haiku defines; list based off of gcc output 266 Builder.defineMacro("__HAIKU__"); 267 DefineStd(Builder, "unix", Opts); 268 if (this->HasFloat128) 269 Builder.defineMacro("__FLOAT128__"); 270 } 271 272 public: 273 HaikuTargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts) 274 : OSTargetInfo<Target>(Triple, Opts) { 275 this->SizeType = TargetInfo::UnsignedLong; 276 this->IntPtrType = TargetInfo::SignedLong; 277 this->PtrDiffType = TargetInfo::SignedLong; 278 this->ProcessIDType = TargetInfo::SignedLong; 279 switch (Triple.getArch()) { 280 default: 281 break; 282 case llvm::Triple::x86: 283 case llvm::Triple::x86_64: 284 this->HasFloat128 = true; 285 break; 286 } 287 } 288 }; 289 290 // Hurd target 291 template <typename Target> 292 class LLVM_LIBRARY_VISIBILITY HurdTargetInfo : public OSTargetInfo<Target> { 293 protected: 294 void getOSDefines(const LangOptions &Opts, const llvm::Triple &Triple, 295 MacroBuilder &Builder) const override { 296 // Hurd defines; list based off of gcc output. 297 DefineStd(Builder, "unix", Opts); 298 Builder.defineMacro("__GNU__"); 299 Builder.defineMacro("__gnu_hurd__"); 300 Builder.defineMacro("__MACH__"); 301 Builder.defineMacro("__GLIBC__"); 302 if (Opts.POSIXThreads) 303 Builder.defineMacro("_REENTRANT"); 304 if (Opts.CPlusPlus) 305 Builder.defineMacro("_GNU_SOURCE"); 306 } 307 public: 308 using OSTargetInfo<Target>::OSTargetInfo; 309 }; 310 311 // Linux target 312 template <typename Target> 313 class LLVM_LIBRARY_VISIBILITY LinuxTargetInfo : public OSTargetInfo<Target> { 314 protected: 315 void getOSDefines(const LangOptions &Opts, const llvm::Triple &Triple, 316 MacroBuilder &Builder) const override { 317 // Linux defines; list based off of gcc output 318 DefineStd(Builder, "unix", Opts); 319 DefineStd(Builder, "linux", Opts); 320 if (Triple.isAndroid()) { 321 Builder.defineMacro("__ANDROID__", "1"); 322 this->PlatformName = "android"; 323 this->PlatformMinVersion = Triple.getEnvironmentVersion(); 324 const unsigned Maj = this->PlatformMinVersion.getMajor(); 325 if (Maj) { 326 Builder.defineMacro("__ANDROID_MIN_SDK_VERSION__", Twine(Maj)); 327 // This historical but ambiguous name for the minSdkVersion macro. Keep 328 // defined for compatibility. 329 Builder.defineMacro("__ANDROID_API__", "__ANDROID_MIN_SDK_VERSION__"); 330 } 331 } else { 332 Builder.defineMacro("__gnu_linux__"); 333 } 334 if (Opts.POSIXThreads) 335 Builder.defineMacro("_REENTRANT"); 336 if (Opts.CPlusPlus) 337 Builder.defineMacro("_GNU_SOURCE"); 338 if (this->HasFloat128) 339 Builder.defineMacro("__FLOAT128__"); 340 } 341 342 public: 343 LinuxTargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts) 344 : OSTargetInfo<Target>(Triple, Opts) { 345 this->WIntType = TargetInfo::UnsignedInt; 346 347 switch (Triple.getArch()) { 348 default: 349 break; 350 case llvm::Triple::mips: 351 case llvm::Triple::mipsel: 352 case llvm::Triple::mips64: 353 case llvm::Triple::mips64el: 354 case llvm::Triple::ppc: 355 case llvm::Triple::ppcle: 356 case llvm::Triple::ppc64: 357 case llvm::Triple::ppc64le: 358 this->MCountName = "_mcount"; 359 break; 360 case llvm::Triple::x86: 361 case llvm::Triple::x86_64: 362 this->HasFloat128 = true; 363 break; 364 } 365 } 366 367 const char *getStaticInitSectionSpecifier() const override { 368 return ".text.startup"; 369 } 370 }; 371 372 // NetBSD Target 373 template <typename Target> 374 class LLVM_LIBRARY_VISIBILITY NetBSDTargetInfo : public OSTargetInfo<Target> { 375 protected: 376 void getOSDefines(const LangOptions &Opts, const llvm::Triple &Triple, 377 MacroBuilder &Builder) const override { 378 // NetBSD defines; list based off of gcc output 379 Builder.defineMacro("__NetBSD__"); 380 Builder.defineMacro("__unix__"); 381 if (Opts.POSIXThreads) 382 Builder.defineMacro("_REENTRANT"); 383 if (this->HasFloat128) 384 Builder.defineMacro("__FLOAT128__"); 385 } 386 387 public: 388 NetBSDTargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts) 389 : OSTargetInfo<Target>(Triple, Opts) { 390 this->MCountName = "__mcount"; 391 switch (Triple.getArch()) { 392 default: 393 break; 394 case llvm::Triple::x86: 395 case llvm::Triple::x86_64: 396 this->HasFloat128 = true; 397 break; 398 } 399 } 400 }; 401 402 // OpenBSD Target 403 template <typename Target> 404 class LLVM_LIBRARY_VISIBILITY OpenBSDTargetInfo : public OSTargetInfo<Target> { 405 protected: 406 void getOSDefines(const LangOptions &Opts, const llvm::Triple &Triple, 407 MacroBuilder &Builder) const override { 408 // OpenBSD defines; list based off of gcc output 409 410 Builder.defineMacro("__OpenBSD__"); 411 DefineStd(Builder, "unix", Opts); 412 if (Opts.POSIXThreads) 413 Builder.defineMacro("_REENTRANT"); 414 if (this->HasFloat128) 415 Builder.defineMacro("__FLOAT128__"); 416 417 if (Opts.C11) 418 Builder.defineMacro("__STDC_NO_THREADS__"); 419 } 420 421 public: 422 OpenBSDTargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts) 423 : OSTargetInfo<Target>(Triple, Opts) { 424 this->WCharType = this->WIntType = this->SignedInt; 425 this->IntMaxType = TargetInfo::SignedLongLong; 426 this->Int64Type = TargetInfo::SignedLongLong; 427 switch (Triple.getArch()) { 428 case llvm::Triple::x86: 429 case llvm::Triple::x86_64: 430 this->HasFloat128 = true; 431 [[fallthrough]]; 432 default: 433 this->MCountName = "__mcount"; 434 break; 435 case llvm::Triple::mips64: 436 case llvm::Triple::mips64el: 437 case llvm::Triple::ppc: 438 case llvm::Triple::ppc64: 439 case llvm::Triple::ppc64le: 440 case llvm::Triple::sparcv9: 441 this->MCountName = "_mcount"; 442 break; 443 case llvm::Triple::riscv32: 444 case llvm::Triple::riscv64: 445 break; 446 } 447 } 448 }; 449 450 // PS3 PPU Target 451 template <typename Target> 452 class LLVM_LIBRARY_VISIBILITY PS3PPUTargetInfo : public OSTargetInfo<Target> { 453 protected: 454 void getOSDefines(const LangOptions &Opts, const llvm::Triple &Triple, 455 MacroBuilder &Builder) const override { 456 // PS3 PPU defines. 457 Builder.defineMacro("__PPU__"); 458 Builder.defineMacro("__CELLOS_LV2__"); 459 Builder.defineMacro("__LP32__"); 460 Builder.defineMacro("_ARCH_PPC64"); 461 Builder.defineMacro("__powerpc64__"); 462 } 463 464 public: 465 PS3PPUTargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts) 466 : OSTargetInfo<Target>(Triple, Opts) { 467 this->LongWidth = this->LongAlign = 32; 468 this->PointerWidth = this->PointerAlign = 32; 469 this->IntMaxType = TargetInfo::SignedLongLong; 470 this->Int64Type = TargetInfo::SignedLongLong; 471 this->SizeType = TargetInfo::UnsignedInt; 472 this->resetDataLayout("E-m:e-p:32:32-Fi64-i64:64-n32:64"); 473 } 474 }; 475 476 // Common base class for PS4/PS5 targets. 477 template <typename Target> 478 class LLVM_LIBRARY_VISIBILITY PSOSTargetInfo : public OSTargetInfo<Target> { 479 protected: 480 void getOSDefines(const LangOptions &Opts, const llvm::Triple &Triple, 481 MacroBuilder &Builder) const override { 482 Builder.defineMacro("__FreeBSD__", "9"); 483 Builder.defineMacro("__FreeBSD_cc_version", "900001"); 484 Builder.defineMacro("__KPRINTF_ATTRIBUTE__"); 485 DefineStd(Builder, "unix", Opts); 486 Builder.defineMacro("__SCE__"); 487 Builder.defineMacro("__STDC_NO_COMPLEX__"); 488 Builder.defineMacro("__STDC_NO_THREADS__"); 489 } 490 491 public: 492 PSOSTargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts) 493 : OSTargetInfo<Target>(Triple, Opts) { 494 this->WCharType = TargetInfo::UnsignedShort; 495 496 // On PS4/PS5, TLS variable cannot be aligned to more than 32 bytes (256 497 // bits). 498 this->MaxTLSAlign = 256; 499 500 // On PS4/PS5, do not honor explicit bit field alignment, 501 // as in "__attribute__((aligned(2))) int b : 1;". 502 this->UseExplicitBitFieldAlignment = false; 503 504 this->MCountName = ".mcount"; 505 this->NewAlign = 256; 506 this->SuitableAlign = 256; 507 } 508 509 TargetInfo::CallingConvCheckResult 510 checkCallingConvention(CallingConv CC) const override { 511 return (CC == CC_C) ? TargetInfo::CCCR_OK : TargetInfo::CCCR_Error; 512 } 513 514 bool areDefaultedSMFStillPOD(const LangOptions &) const override { 515 return false; 516 } 517 }; 518 519 // PS4 Target 520 template <typename Target> 521 class LLVM_LIBRARY_VISIBILITY PS4OSTargetInfo : public PSOSTargetInfo<Target> { 522 protected: 523 void getOSDefines(const LangOptions &Opts, const llvm::Triple &Triple, 524 MacroBuilder &Builder) const override { 525 // Start with base class defines. 526 PSOSTargetInfo<Target>::getOSDefines(Opts, Triple, Builder); 527 528 Builder.defineMacro("__ORBIS__"); 529 } 530 531 public: 532 using PSOSTargetInfo<Target>::PSOSTargetInfo; 533 }; 534 535 // PS5 Target 536 template <typename Target> 537 class LLVM_LIBRARY_VISIBILITY PS5OSTargetInfo : public PSOSTargetInfo<Target> { 538 protected: 539 void getOSDefines(const LangOptions &Opts, const llvm::Triple &Triple, 540 MacroBuilder &Builder) const override { 541 // Start with base class defines. 542 PSOSTargetInfo<Target>::getOSDefines(Opts, Triple, Builder); 543 544 Builder.defineMacro("__PROSPERO__"); 545 } 546 547 public: 548 using PSOSTargetInfo<Target>::PSOSTargetInfo; 549 }; 550 551 // RTEMS Target 552 template <typename Target> 553 class LLVM_LIBRARY_VISIBILITY RTEMSTargetInfo : public OSTargetInfo<Target> { 554 protected: 555 void getOSDefines(const LangOptions &Opts, const llvm::Triple &Triple, 556 MacroBuilder &Builder) const override { 557 // RTEMS defines; list based off of gcc output 558 559 Builder.defineMacro("__rtems__"); 560 if (Opts.CPlusPlus) 561 Builder.defineMacro("_GNU_SOURCE"); 562 } 563 564 public: 565 RTEMSTargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts) 566 : OSTargetInfo<Target>(Triple, Opts) { 567 switch (Triple.getArch()) { 568 default: 569 case llvm::Triple::x86: 570 // this->MCountName = ".mcount"; 571 break; 572 case llvm::Triple::mips: 573 case llvm::Triple::mipsel: 574 case llvm::Triple::ppc: 575 case llvm::Triple::ppc64: 576 case llvm::Triple::ppc64le: 577 // this->MCountName = "_mcount"; 578 break; 579 case llvm::Triple::arm: 580 // this->MCountName = "__mcount"; 581 break; 582 } 583 } 584 }; 585 586 // Solaris target 587 template <typename Target> 588 class LLVM_LIBRARY_VISIBILITY SolarisTargetInfo : public OSTargetInfo<Target> { 589 protected: 590 void getOSDefines(const LangOptions &Opts, const llvm::Triple &Triple, 591 MacroBuilder &Builder) const override { 592 DefineStd(Builder, "sun", Opts); 593 DefineStd(Builder, "unix", Opts); 594 Builder.defineMacro("__svr4__"); 595 Builder.defineMacro("__SVR4"); 596 // Solaris headers require _XOPEN_SOURCE to be set to 600 for C99 and 597 // newer, but to 500 for everything else. feature_test.h has a check to 598 // ensure that you are not using C99 with an old version of X/Open or C89 599 // with a new version. 600 if (Opts.C99) 601 Builder.defineMacro("_XOPEN_SOURCE", "600"); 602 else 603 Builder.defineMacro("_XOPEN_SOURCE", "500"); 604 if (Opts.CPlusPlus) { 605 Builder.defineMacro("__C99FEATURES__"); 606 Builder.defineMacro("_FILE_OFFSET_BITS", "64"); 607 } 608 // GCC restricts the next two to C++. 609 Builder.defineMacro("_LARGEFILE_SOURCE"); 610 Builder.defineMacro("_LARGEFILE64_SOURCE"); 611 Builder.defineMacro("__EXTENSIONS__"); 612 if (Opts.POSIXThreads) 613 Builder.defineMacro("_REENTRANT"); 614 if (this->HasFloat128) 615 Builder.defineMacro("__FLOAT128__"); 616 } 617 618 public: 619 SolarisTargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts) 620 : OSTargetInfo<Target>(Triple, Opts) { 621 if (this->PointerWidth == 64) { 622 this->WCharType = this->WIntType = this->SignedInt; 623 } else { 624 this->WCharType = this->WIntType = this->SignedLong; 625 } 626 switch (Triple.getArch()) { 627 default: 628 break; 629 case llvm::Triple::x86: 630 case llvm::Triple::x86_64: 631 this->HasFloat128 = true; 632 break; 633 } 634 } 635 }; 636 637 // AIX Target 638 template <typename Target> 639 class AIXTargetInfo : public OSTargetInfo<Target> { 640 protected: 641 void getOSDefines(const LangOptions &Opts, const llvm::Triple &Triple, 642 MacroBuilder &Builder) const override { 643 DefineStd(Builder, "unix", Opts); 644 Builder.defineMacro("_IBMR2"); 645 Builder.defineMacro("_POWER"); 646 Builder.defineMacro("__THW_BIG_ENDIAN__"); 647 648 Builder.defineMacro("_AIX"); 649 Builder.defineMacro("__TOS_AIX__"); 650 Builder.defineMacro("__HOS_AIX__"); 651 652 if (Opts.C11) { 653 Builder.defineMacro("__STDC_NO_ATOMICS__"); 654 Builder.defineMacro("__STDC_NO_THREADS__"); 655 } 656 657 if (Opts.EnableAIXExtendedAltivecABI) 658 Builder.defineMacro("__EXTABI__"); 659 660 VersionTuple OsVersion = Triple.getOSVersion(); 661 662 // Define AIX OS-Version Macros. 663 // Includes logic for legacy versions of AIX; no specific intent to support. 664 if (OsVersion >= VersionTuple(3, 2)) 665 Builder.defineMacro("_AIX32"); 666 if (OsVersion >= VersionTuple(4, 1)) 667 Builder.defineMacro("_AIX41"); 668 if (OsVersion >= VersionTuple(4, 3)) 669 Builder.defineMacro("_AIX43"); 670 if (OsVersion >= VersionTuple(5, 0)) 671 Builder.defineMacro("_AIX50"); 672 if (OsVersion >= VersionTuple(5, 1)) 673 Builder.defineMacro("_AIX51"); 674 if (OsVersion >= VersionTuple(5, 2)) 675 Builder.defineMacro("_AIX52"); 676 if (OsVersion >= VersionTuple(5, 3)) 677 Builder.defineMacro("_AIX53"); 678 if (OsVersion >= VersionTuple(6, 1)) 679 Builder.defineMacro("_AIX61"); 680 if (OsVersion >= VersionTuple(7, 1)) 681 Builder.defineMacro("_AIX71"); 682 if (OsVersion >= VersionTuple(7, 2)) 683 Builder.defineMacro("_AIX72"); 684 if (OsVersion >= VersionTuple(7, 3)) 685 Builder.defineMacro("_AIX73"); 686 687 // FIXME: Do not define _LONG_LONG when -fno-long-long is specified. 688 Builder.defineMacro("_LONG_LONG"); 689 690 if (Opts.POSIXThreads) { 691 Builder.defineMacro("_THREAD_SAFE"); 692 } 693 694 if (this->PointerWidth == 64) { 695 Builder.defineMacro("__64BIT__"); 696 } 697 698 // Define _WCHAR_T when it is a fundamental type 699 // (i.e., for C++ without -fno-wchar). 700 if (Opts.CPlusPlus && Opts.WChar) { 701 Builder.defineMacro("_WCHAR_T"); 702 } 703 } 704 705 public: 706 AIXTargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts) 707 : OSTargetInfo<Target>(Triple, Opts) { 708 this->MCountName = "__mcount"; 709 this->TheCXXABI.set(TargetCXXABI::XL); 710 711 if (this->PointerWidth == 64) { 712 this->WCharType = this->UnsignedInt; 713 } else { 714 this->WCharType = this->UnsignedShort; 715 } 716 this->UseZeroLengthBitfieldAlignment = true; 717 } 718 719 // AIX sets FLT_EVAL_METHOD to be 1. 720 LangOptions::FPEvalMethodKind getFPEvalMethod() const override { 721 return LangOptions::FPEvalMethodKind::FEM_Double; 722 } 723 724 bool defaultsToAIXPowerAlignment() const override { return true; } 725 726 bool areDefaultedSMFStillPOD(const LangOptions &) const override { 727 return false; 728 } 729 }; 730 731 // z/OS target 732 template <typename Target> 733 class LLVM_LIBRARY_VISIBILITY ZOSTargetInfo : public OSTargetInfo<Target> { 734 protected: 735 void getOSDefines(const LangOptions &Opts, const llvm::Triple &Triple, 736 MacroBuilder &Builder) const override { 737 // FIXME: _LONG_LONG should not be defined under -std=c89. 738 Builder.defineMacro("_LONG_LONG"); 739 Builder.defineMacro("__370__"); 740 Builder.defineMacro("__BFP__"); 741 // FIXME: __BOOL__ should not be defined under -std=c89. 742 Builder.defineMacro("__BOOL__"); 743 Builder.defineMacro("__COMPILER_VER__", "0x50000000"); 744 Builder.defineMacro("__LONGNAME__"); 745 Builder.defineMacro("__MVS__"); 746 Builder.defineMacro("__THW_370__"); 747 Builder.defineMacro("__THW_BIG_ENDIAN__"); 748 Builder.defineMacro("__TOS_390__"); 749 Builder.defineMacro("__TOS_MVS__"); 750 Builder.defineMacro("__XPLINK__"); 751 752 if (this->PointerWidth == 64) 753 Builder.defineMacro("__64BIT__"); 754 755 if (Opts.CPlusPlus && Opts.WChar) { 756 // Macro __wchar_t is defined so that the wchar_t data 757 // type is not declared as a typedef in system headers. 758 Builder.defineMacro("__wchar_t"); 759 } 760 761 this->PlatformName = llvm::Triple::getOSTypeName(Triple.getOS()); 762 } 763 764 public: 765 ZOSTargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts) 766 : OSTargetInfo<Target>(Triple, Opts) { 767 this->WCharType = TargetInfo::UnsignedInt; 768 this->MaxAlignedAttribute = 128; 769 this->UseBitFieldTypeAlignment = false; 770 this->UseZeroLengthBitfieldAlignment = true; 771 this->UseLeadingZeroLengthBitfield = false; 772 this->ZeroLengthBitfieldBoundary = 32; 773 this->TheCXXABI.set(TargetCXXABI::XL); 774 } 775 776 bool areDefaultedSMFStillPOD(const LangOptions &) const override { 777 return false; 778 } 779 }; 780 781 void addWindowsDefines(const llvm::Triple &Triple, const LangOptions &Opts, 782 MacroBuilder &Builder); 783 784 // Windows target 785 template <typename Target> 786 class LLVM_LIBRARY_VISIBILITY WindowsTargetInfo : public OSTargetInfo<Target> { 787 protected: 788 void getOSDefines(const LangOptions &Opts, const llvm::Triple &Triple, 789 MacroBuilder &Builder) const override { 790 addWindowsDefines(Triple, Opts, Builder); 791 } 792 793 public: 794 WindowsTargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts) 795 : OSTargetInfo<Target>(Triple, Opts) { 796 this->WCharType = TargetInfo::UnsignedShort; 797 this->WIntType = TargetInfo::UnsignedShort; 798 } 799 }; 800 801 template <typename Target> 802 class LLVM_LIBRARY_VISIBILITY NaClTargetInfo : public OSTargetInfo<Target> { 803 protected: 804 void getOSDefines(const LangOptions &Opts, const llvm::Triple &Triple, 805 MacroBuilder &Builder) const override { 806 if (Opts.POSIXThreads) 807 Builder.defineMacro("_REENTRANT"); 808 if (Opts.CPlusPlus) 809 Builder.defineMacro("_GNU_SOURCE"); 810 811 DefineStd(Builder, "unix", Opts); 812 Builder.defineMacro("__native_client__"); 813 } 814 815 public: 816 NaClTargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts) 817 : OSTargetInfo<Target>(Triple, Opts) { 818 this->LongAlign = 32; 819 this->LongWidth = 32; 820 this->PointerAlign = 32; 821 this->PointerWidth = 32; 822 this->IntMaxType = TargetInfo::SignedLongLong; 823 this->Int64Type = TargetInfo::SignedLongLong; 824 this->DoubleAlign = 64; 825 this->LongDoubleWidth = 64; 826 this->LongDoubleAlign = 64; 827 this->LongLongWidth = 64; 828 this->LongLongAlign = 64; 829 this->SizeType = TargetInfo::UnsignedInt; 830 this->PtrDiffType = TargetInfo::SignedInt; 831 this->IntPtrType = TargetInfo::SignedInt; 832 // RegParmMax is inherited from the underlying architecture. 833 this->LongDoubleFormat = &llvm::APFloat::IEEEdouble(); 834 if (Triple.getArch() == llvm::Triple::arm) { 835 // Handled in ARM's setABI(). 836 } else if (Triple.getArch() == llvm::Triple::x86) { 837 this->resetDataLayout("e-m:e-p:32:32-p270:32:32-p271:32:32-p272:64:64-" 838 "i64:64-i128:128-n8:16:32-S128"); 839 } else if (Triple.getArch() == llvm::Triple::x86_64) { 840 this->resetDataLayout("e-m:e-p:32:32-p270:32:32-p271:32:32-p272:64:64-" 841 "i64:64-i128:128-n8:16:32:64-S128"); 842 } else if (Triple.getArch() == llvm::Triple::mipsel) { 843 // Handled on mips' setDataLayout. 844 } else { 845 assert(Triple.getArch() == llvm::Triple::le32); 846 this->resetDataLayout("e-p:32:32-i64:64"); 847 } 848 } 849 }; 850 851 // Fuchsia Target 852 template <typename Target> 853 class LLVM_LIBRARY_VISIBILITY FuchsiaTargetInfo : public OSTargetInfo<Target> { 854 protected: 855 void getOSDefines(const LangOptions &Opts, const llvm::Triple &Triple, 856 MacroBuilder &Builder) const override { 857 Builder.defineMacro("__Fuchsia__"); 858 if (Opts.POSIXThreads) 859 Builder.defineMacro("_REENTRANT"); 860 // Required by the libc++ locale support. 861 if (Opts.CPlusPlus) 862 Builder.defineMacro("_GNU_SOURCE"); 863 Builder.defineMacro("__Fuchsia_API_level__", Twine(Opts.FuchsiaAPILevel)); 864 this->PlatformName = "fuchsia"; 865 this->PlatformMinVersion = VersionTuple(Opts.FuchsiaAPILevel); 866 } 867 868 public: 869 FuchsiaTargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts) 870 : OSTargetInfo<Target>(Triple, Opts) { 871 this->MCountName = "__mcount"; 872 this->TheCXXABI.set(TargetCXXABI::Fuchsia); 873 } 874 }; 875 876 // WebAssembly target 877 template <typename Target> 878 class LLVM_LIBRARY_VISIBILITY WebAssemblyOSTargetInfo 879 : public OSTargetInfo<Target> { 880 protected: 881 void getOSDefines(const LangOptions &Opts, const llvm::Triple &Triple, 882 MacroBuilder &Builder) const override { 883 // A common platform macro. 884 if (Opts.POSIXThreads) 885 Builder.defineMacro("_REENTRANT"); 886 // Follow g++ convention and predefine _GNU_SOURCE for C++. 887 if (Opts.CPlusPlus) 888 Builder.defineMacro("_GNU_SOURCE"); 889 // Indicate that we have __float128. 890 Builder.defineMacro("__FLOAT128__"); 891 } 892 893 public: 894 explicit WebAssemblyOSTargetInfo(const llvm::Triple &Triple, 895 const TargetOptions &Opts) 896 : OSTargetInfo<Target>(Triple, Opts) { 897 this->MCountName = "__mcount"; 898 this->TheCXXABI.set(TargetCXXABI::WebAssembly); 899 this->HasFloat128 = true; 900 } 901 }; 902 903 // WASI target 904 template <typename Target> 905 class LLVM_LIBRARY_VISIBILITY WASITargetInfo 906 : public WebAssemblyOSTargetInfo<Target> { 907 void getOSDefines(const LangOptions &Opts, const llvm::Triple &Triple, 908 MacroBuilder &Builder) const final { 909 WebAssemblyOSTargetInfo<Target>::getOSDefines(Opts, Triple, Builder); 910 Builder.defineMacro("__wasi__"); 911 } 912 913 public: 914 using WebAssemblyOSTargetInfo<Target>::WebAssemblyOSTargetInfo; 915 }; 916 917 // Emscripten target 918 template <typename Target> 919 class LLVM_LIBRARY_VISIBILITY EmscriptenTargetInfo 920 : public WebAssemblyOSTargetInfo<Target> { 921 void getOSDefines(const LangOptions &Opts, const llvm::Triple &Triple, 922 MacroBuilder &Builder) const final { 923 WebAssemblyOSTargetInfo<Target>::getOSDefines(Opts, Triple, Builder); 924 DefineStd(Builder, "unix", Opts); 925 Builder.defineMacro("__EMSCRIPTEN__"); 926 if (Opts.POSIXThreads) 927 Builder.defineMacro("__EMSCRIPTEN_PTHREADS__"); 928 } 929 930 public: 931 explicit EmscriptenTargetInfo(const llvm::Triple &Triple, 932 const TargetOptions &Opts) 933 : WebAssemblyOSTargetInfo<Target>(Triple, Opts) { 934 // Keeping the alignment of long double to 8 bytes even though its size is 935 // 16 bytes allows emscripten to have an 8-byte-aligned max_align_t which 936 // in turn gives is a 8-byte aligned malloc. 937 // Emscripten's ABI is unstable and we may change this back to 128 to match 938 // the WebAssembly default in the future. 939 this->LongDoubleAlign = 64; 940 } 941 }; 942 943 // OHOS target 944 template <typename Target> 945 class LLVM_LIBRARY_VISIBILITY OHOSTargetInfo : public OSTargetInfo<Target> { 946 protected: 947 void getOSDefines(const LangOptions &Opts, const llvm::Triple &Triple, 948 MacroBuilder &Builder) const override { 949 // Linux defines; list based off of gcc output 950 DefineStd(Builder, "unix", Opts); 951 952 // Generic OHOS target defines 953 if (Triple.isOHOSFamily()) { 954 Builder.defineMacro("__OHOS_FAMILY__", "1"); 955 956 auto Version = Triple.getEnvironmentVersion(); 957 this->PlatformName = "ohos"; 958 this->PlatformMinVersion = Version; 959 Builder.defineMacro("__OHOS_Major__", Twine(Version.getMajor())); 960 if (auto Minor = Version.getMinor()) 961 Builder.defineMacro("__OHOS_Minor__", Twine(*Minor)); 962 if (auto Subminor = Version.getSubminor()) 963 Builder.defineMacro("__OHOS_Micro__", Twine(*Subminor)); 964 } 965 966 if (Triple.isOpenHOS()) 967 Builder.defineMacro("__OHOS__"); 968 969 if (Triple.isOSLinux()) { 970 DefineStd(Builder, "linux", Opts); 971 } else if (Triple.isOSLiteOS()) { 972 Builder.defineMacro("__LITEOS__"); 973 } 974 975 if (Opts.POSIXThreads) 976 Builder.defineMacro("_REENTRANT"); 977 if (Opts.CPlusPlus) 978 Builder.defineMacro("_GNU_SOURCE"); 979 if (this->HasFloat128) 980 Builder.defineMacro("__FLOAT128__"); 981 } 982 983 public: 984 OHOSTargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts) 985 : OSTargetInfo<Target>(Triple, Opts) { 986 this->WIntType = TargetInfo::UnsignedInt; 987 988 switch (Triple.getArch()) { 989 default: 990 break; 991 case llvm::Triple::x86: 992 case llvm::Triple::x86_64: 993 this->HasFloat128 = true; 994 break; 995 } 996 } 997 998 const char *getStaticInitSectionSpecifier() const override { 999 return ".text.startup"; 1000 } 1001 }; 1002 1003 } // namespace targets 1004 } // namespace clang 1005 #endif // LLVM_CLANG_LIB_BASIC_TARGETS_OSTARGETS_H 1006