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 17namespace clang { 18namespace targets { 19 20template <typename TgtInfo> 21class LLVM_LIBRARY_VISIBILITY OSTargetInfo : public TgtInfo { 22protected: 23 virtual void getOSDefines(const LangOptions &Opts, const llvm::Triple &Triple, 24 MacroBuilder &Builder) const = 0; 25 26public: 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// CloudABI Target 38template <typename Target> 39class LLVM_LIBRARY_VISIBILITY CloudABITargetInfo : public OSTargetInfo<Target> { 40protected: 41 void getOSDefines(const LangOptions &Opts, const llvm::Triple &Triple, 42 MacroBuilder &Builder) const override { 43 Builder.defineMacro("__CloudABI__"); 44 Builder.defineMacro("__ELF__"); 45 46 // CloudABI uses ISO/IEC 10646:2012 for wchar_t, char16_t and char32_t. 47 Builder.defineMacro("__STDC_ISO_10646__", "201206L"); 48 Builder.defineMacro("__STDC_UTF_16__"); 49 Builder.defineMacro("__STDC_UTF_32__"); 50 } 51 52public: 53 CloudABITargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts) 54 : OSTargetInfo<Target>(Triple, Opts) {} 55}; 56 57// Ananas target 58template <typename Target> 59class LLVM_LIBRARY_VISIBILITY AnanasTargetInfo : public OSTargetInfo<Target> { 60protected: 61 void getOSDefines(const LangOptions &Opts, const llvm::Triple &Triple, 62 MacroBuilder &Builder) const override { 63 // Ananas defines 64 Builder.defineMacro("__Ananas__"); 65 Builder.defineMacro("__ELF__"); 66 } 67 68public: 69 AnanasTargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts) 70 : OSTargetInfo<Target>(Triple, Opts) {} 71}; 72 73void getDarwinDefines(MacroBuilder &Builder, const LangOptions &Opts, 74 const llvm::Triple &Triple, StringRef &PlatformName, 75 VersionTuple &PlatformMinVersion); 76 77template <typename Target> 78class LLVM_LIBRARY_VISIBILITY DarwinTargetInfo : public OSTargetInfo<Target> { 79protected: 80 void getOSDefines(const LangOptions &Opts, const llvm::Triple &Triple, 81 MacroBuilder &Builder) const override { 82 getDarwinDefines(Builder, Opts, Triple, this->PlatformName, 83 this->PlatformMinVersion); 84 } 85 86public: 87 DarwinTargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts) 88 : OSTargetInfo<Target>(Triple, Opts) { 89 // By default, no TLS, and we list permitted architecture/OS 90 // combinations. 91 this->TLSSupported = false; 92 93 if (Triple.isMacOSX()) 94 this->TLSSupported = !Triple.isMacOSXVersionLT(10, 7); 95 else if (Triple.isiOS()) { 96 // 64-bit iOS supported it from 8 onwards, 32-bit device from 9 onwards, 97 // 32-bit simulator from 10 onwards. 98 if (Triple.isArch64Bit()) 99 this->TLSSupported = !Triple.isOSVersionLT(8); 100 else if (Triple.isArch32Bit()) { 101 if (!Triple.isSimulatorEnvironment()) 102 this->TLSSupported = !Triple.isOSVersionLT(9); 103 else 104 this->TLSSupported = !Triple.isOSVersionLT(10); 105 } 106 } else if (Triple.isWatchOS()) { 107 if (!Triple.isSimulatorEnvironment()) 108 this->TLSSupported = !Triple.isOSVersionLT(2); 109 else 110 this->TLSSupported = !Triple.isOSVersionLT(3); 111 } 112 113 this->MCountName = "\01mcount"; 114 } 115 116 const char *getStaticInitSectionSpecifier() const override { 117 // FIXME: We should return 0 when building kexts. 118 return "__TEXT,__StaticInit,regular,pure_instructions"; 119 } 120 121 /// Darwin does not support protected visibility. Darwin's "default" 122 /// is very similar to ELF's "protected"; Darwin requires a "weak" 123 /// attribute on declarations that can be dynamically replaced. 124 bool hasProtectedVisibility() const override { return false; } 125 126 unsigned getExnObjectAlignment() const override { 127 // Older versions of libc++abi guarantee an alignment of only 8-bytes for 128 // exception objects because of a bug in __cxa_exception that was 129 // eventually fixed in r319123. 130 llvm::VersionTuple MinVersion; 131 const llvm::Triple &T = this->getTriple(); 132 133 // Compute the earliest OS versions that have the fix to libc++abi. 134 switch (T.getOS()) { 135 case llvm::Triple::Darwin: 136 case llvm::Triple::MacOSX: // Earliest supporting version is 10.14. 137 MinVersion = llvm::VersionTuple(10U, 14U); 138 break; 139 case llvm::Triple::IOS: 140 case llvm::Triple::TvOS: // Earliest supporting version is 12.0.0. 141 MinVersion = llvm::VersionTuple(12U); 142 break; 143 case llvm::Triple::WatchOS: // Earliest supporting version is 5.0.0. 144 MinVersion = llvm::VersionTuple(5U); 145 break; 146 default: 147 // Conservatively return 8 bytes if OS is unknown. 148 return 64; 149 } 150 151 unsigned Major, Minor, Micro; 152 T.getOSVersion(Major, Minor, Micro); 153 if (llvm::VersionTuple(Major, Minor, Micro) < MinVersion) 154 return 64; 155 return OSTargetInfo<Target>::getExnObjectAlignment(); 156 } 157 158 TargetInfo::IntType getLeastIntTypeByWidth(unsigned BitWidth, 159 bool IsSigned) const final { 160 // Darwin uses `long long` for `int_least64_t` and `int_fast64_t`. 161 return BitWidth == 64 162 ? (IsSigned ? TargetInfo::SignedLongLong 163 : TargetInfo::UnsignedLongLong) 164 : TargetInfo::getLeastIntTypeByWidth(BitWidth, IsSigned); 165 } 166}; 167 168// DragonFlyBSD Target 169template <typename Target> 170class LLVM_LIBRARY_VISIBILITY DragonFlyBSDTargetInfo 171 : public OSTargetInfo<Target> { 172protected: 173 void getOSDefines(const LangOptions &Opts, const llvm::Triple &Triple, 174 MacroBuilder &Builder) const override { 175 // DragonFly defines; list based off of gcc output 176 Builder.defineMacro("__DragonFly__"); 177 Builder.defineMacro("__DragonFly_cc_version", "100001"); 178 Builder.defineMacro("__ELF__"); 179 Builder.defineMacro("__KPRINTF_ATTRIBUTE__"); 180 Builder.defineMacro("__tune_i386__"); 181 DefineStd(Builder, "unix", Opts); 182 } 183 184public: 185 DragonFlyBSDTargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts) 186 : OSTargetInfo<Target>(Triple, Opts) { 187 switch (Triple.getArch()) { 188 default: 189 case llvm::Triple::x86: 190 case llvm::Triple::x86_64: 191 this->MCountName = ".mcount"; 192 break; 193 } 194 } 195}; 196 197#ifndef FREEBSD_CC_VERSION 198#define FREEBSD_CC_VERSION 0U 199#endif 200 201// FreeBSD Target 202template <typename Target> 203class LLVM_LIBRARY_VISIBILITY FreeBSDTargetInfo : public OSTargetInfo<Target> { 204protected: 205 void getOSDefines(const LangOptions &Opts, const llvm::Triple &Triple, 206 MacroBuilder &Builder) const override { 207 // FreeBSD defines; list based off of gcc output 208 209 unsigned Release = Triple.getOSMajorVersion(); 210 if (Release == 0U) 211 Release = 8U; 212 unsigned CCVersion = FREEBSD_CC_VERSION; 213 if (CCVersion == 0U) 214 CCVersion = Release * 100000U + 1U; 215 216 Builder.defineMacro("__FreeBSD__", Twine(Release)); 217 Builder.defineMacro("__FreeBSD_cc_version", Twine(CCVersion)); 218 Builder.defineMacro("__KPRINTF_ATTRIBUTE__"); 219 DefineStd(Builder, "unix", Opts); 220 Builder.defineMacro("__ELF__"); 221 222 // On FreeBSD, wchar_t contains the number of the code point as 223 // used by the character set of the locale. These character sets are 224 // not necessarily a superset of ASCII. 225 // 226 // FIXME: This is wrong; the macro refers to the numerical values 227 // of wchar_t *literals*, which are not locale-dependent. However, 228 // FreeBSD systems apparently depend on us getting this wrong, and 229 // setting this to 1 is conforming even if all the basic source 230 // character literals have the same encoding as char and wchar_t. 231 Builder.defineMacro("__STDC_MB_MIGHT_NEQ_WC__", "1"); 232 } 233 234public: 235 FreeBSDTargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts) 236 : OSTargetInfo<Target>(Triple, Opts) { 237 switch (Triple.getArch()) { 238 default: 239 case llvm::Triple::x86: 240 case llvm::Triple::x86_64: 241 this->MCountName = ".mcount"; 242 break; 243 case llvm::Triple::mips: 244 case llvm::Triple::mipsel: 245 case llvm::Triple::ppc: 246 case llvm::Triple::ppcle: 247 case llvm::Triple::ppc64: 248 case llvm::Triple::ppc64le: 249 this->MCountName = "_mcount"; 250 break; 251 case llvm::Triple::arm: 252 this->MCountName = "__mcount"; 253 break; 254 case llvm::Triple::riscv32: 255 case llvm::Triple::riscv64: 256 break; 257 } 258 } 259}; 260 261// GNU/kFreeBSD Target 262template <typename Target> 263class LLVM_LIBRARY_VISIBILITY KFreeBSDTargetInfo : public OSTargetInfo<Target> { 264protected: 265 void getOSDefines(const LangOptions &Opts, const llvm::Triple &Triple, 266 MacroBuilder &Builder) const override { 267 // GNU/kFreeBSD defines; list based off of gcc output 268 269 DefineStd(Builder, "unix", Opts); 270 Builder.defineMacro("__FreeBSD_kernel__"); 271 Builder.defineMacro("__GLIBC__"); 272 Builder.defineMacro("__ELF__"); 273 if (Opts.POSIXThreads) 274 Builder.defineMacro("_REENTRANT"); 275 if (Opts.CPlusPlus) 276 Builder.defineMacro("_GNU_SOURCE"); 277 } 278 279public: 280 KFreeBSDTargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts) 281 : OSTargetInfo<Target>(Triple, Opts) {} 282}; 283 284// Haiku Target 285template <typename Target> 286class LLVM_LIBRARY_VISIBILITY HaikuTargetInfo : public OSTargetInfo<Target> { 287protected: 288 void getOSDefines(const LangOptions &Opts, const llvm::Triple &Triple, 289 MacroBuilder &Builder) const override { 290 // Haiku defines; list based off of gcc output 291 Builder.defineMacro("__HAIKU__"); 292 Builder.defineMacro("__ELF__"); 293 DefineStd(Builder, "unix", Opts); 294 if (this->HasFloat128) 295 Builder.defineMacro("__FLOAT128__"); 296 } 297 298public: 299 HaikuTargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts) 300 : OSTargetInfo<Target>(Triple, Opts) { 301 this->SizeType = TargetInfo::UnsignedLong; 302 this->IntPtrType = TargetInfo::SignedLong; 303 this->PtrDiffType = TargetInfo::SignedLong; 304 this->ProcessIDType = TargetInfo::SignedLong; 305 this->TLSSupported = false; 306 switch (Triple.getArch()) { 307 default: 308 break; 309 case llvm::Triple::x86: 310 case llvm::Triple::x86_64: 311 this->HasFloat128 = true; 312 break; 313 } 314 } 315}; 316 317// Hurd target 318template <typename Target> 319class LLVM_LIBRARY_VISIBILITY HurdTargetInfo : public OSTargetInfo<Target> { 320protected: 321 void getOSDefines(const LangOptions &Opts, const llvm::Triple &Triple, 322 MacroBuilder &Builder) const override { 323 // Hurd defines; list based off of gcc output. 324 DefineStd(Builder, "unix", Opts); 325 Builder.defineMacro("__GNU__"); 326 Builder.defineMacro("__gnu_hurd__"); 327 Builder.defineMacro("__MACH__"); 328 Builder.defineMacro("__GLIBC__"); 329 Builder.defineMacro("__ELF__"); 330 if (Opts.POSIXThreads) 331 Builder.defineMacro("_REENTRANT"); 332 if (Opts.CPlusPlus) 333 Builder.defineMacro("_GNU_SOURCE"); 334 } 335public: 336 HurdTargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts) 337 : OSTargetInfo<Target>(Triple, Opts) {} 338}; 339 340// Minix Target 341template <typename Target> 342class LLVM_LIBRARY_VISIBILITY MinixTargetInfo : public OSTargetInfo<Target> { 343protected: 344 void getOSDefines(const LangOptions &Opts, const llvm::Triple &Triple, 345 MacroBuilder &Builder) const override { 346 // Minix defines 347 348 Builder.defineMacro("__minix", "3"); 349 Builder.defineMacro("_EM_WSIZE", "4"); 350 Builder.defineMacro("_EM_PSIZE", "4"); 351 Builder.defineMacro("_EM_SSIZE", "2"); 352 Builder.defineMacro("_EM_LSIZE", "4"); 353 Builder.defineMacro("_EM_FSIZE", "4"); 354 Builder.defineMacro("_EM_DSIZE", "8"); 355 Builder.defineMacro("__ELF__"); 356 DefineStd(Builder, "unix", Opts); 357 } 358 359public: 360 MinixTargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts) 361 : OSTargetInfo<Target>(Triple, Opts) {} 362}; 363 364// Linux target 365template <typename Target> 366class LLVM_LIBRARY_VISIBILITY LinuxTargetInfo : public OSTargetInfo<Target> { 367protected: 368 void getOSDefines(const LangOptions &Opts, const llvm::Triple &Triple, 369 MacroBuilder &Builder) const override { 370 // Linux defines; list based off of gcc output 371 DefineStd(Builder, "unix", Opts); 372 DefineStd(Builder, "linux", Opts); 373 Builder.defineMacro("__ELF__"); 374 if (Triple.isAndroid()) { 375 Builder.defineMacro("__ANDROID__", "1"); 376 unsigned Maj, Min, Rev; 377 Triple.getEnvironmentVersion(Maj, Min, Rev); 378 this->PlatformName = "android"; 379 this->PlatformMinVersion = VersionTuple(Maj, Min, Rev); 380 if (Maj) { 381 Builder.defineMacro("__ANDROID_MIN_SDK_VERSION__", Twine(Maj)); 382 // This historical but ambiguous name for the minSdkVersion macro. Keep 383 // defined for compatibility. 384 Builder.defineMacro("__ANDROID_API__", "__ANDROID_MIN_SDK_VERSION__"); 385 } 386 } else { 387 Builder.defineMacro("__gnu_linux__"); 388 } 389 if (Opts.POSIXThreads) 390 Builder.defineMacro("_REENTRANT"); 391 if (Opts.CPlusPlus) 392 Builder.defineMacro("_GNU_SOURCE"); 393 if (this->HasFloat128) 394 Builder.defineMacro("__FLOAT128__"); 395 } 396 397public: 398 LinuxTargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts) 399 : OSTargetInfo<Target>(Triple, Opts) { 400 this->WIntType = TargetInfo::UnsignedInt; 401 402 switch (Triple.getArch()) { 403 default: 404 break; 405 case llvm::Triple::mips: 406 case llvm::Triple::mipsel: 407 case llvm::Triple::mips64: 408 case llvm::Triple::mips64el: 409 case llvm::Triple::ppc: 410 case llvm::Triple::ppcle: 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 428template <typename Target> 429class LLVM_LIBRARY_VISIBILITY NetBSDTargetInfo : public OSTargetInfo<Target> { 430protected: 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 441public: 442 NetBSDTargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts) 443 : OSTargetInfo<Target>(Triple, Opts) { 444 this->MCountName = "__mcount"; 445 } 446}; 447 448// OpenBSD Target 449template <typename Target> 450class LLVM_LIBRARY_VISIBILITY OpenBSDTargetInfo : public OSTargetInfo<Target> { 451protected: 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 465public: 466 OpenBSDTargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts) 467 : OSTargetInfo<Target>(Triple, Opts) { 468 this->WCharType = this->WIntType = this->SignedInt; 469 this->IntMaxType = TargetInfo::SignedLongLong; 470 this->Int64Type = TargetInfo::SignedLongLong; 471 switch (Triple.getArch()) { 472 case llvm::Triple::x86: 473 case llvm::Triple::x86_64: 474 this->HasFloat128 = true; 475 LLVM_FALLTHROUGH; 476 default: 477 this->MCountName = "__mcount"; 478 break; 479 case llvm::Triple::mips64: 480 case llvm::Triple::mips64el: 481 case llvm::Triple::ppc: 482 case llvm::Triple::ppc64: 483 case llvm::Triple::ppc64le: 484 case llvm::Triple::sparcv9: 485 this->MCountName = "_mcount"; 486 break; 487 case llvm::Triple::riscv32: 488 case llvm::Triple::riscv64: 489 break; 490 } 491 } 492}; 493 494// PSP Target 495template <typename Target> 496class LLVM_LIBRARY_VISIBILITY PSPTargetInfo : public OSTargetInfo<Target> { 497protected: 498 void getOSDefines(const LangOptions &Opts, const llvm::Triple &Triple, 499 MacroBuilder &Builder) const override { 500 // PSP defines; list based on the output of the pspdev gcc toolchain. 501 Builder.defineMacro("PSP"); 502 Builder.defineMacro("_PSP"); 503 Builder.defineMacro("__psp__"); 504 Builder.defineMacro("__ELF__"); 505 } 506 507public: 508 PSPTargetInfo(const llvm::Triple &Triple) : OSTargetInfo<Target>(Triple) {} 509}; 510 511// PS3 PPU Target 512template <typename Target> 513class LLVM_LIBRARY_VISIBILITY PS3PPUTargetInfo : public OSTargetInfo<Target> { 514protected: 515 void getOSDefines(const LangOptions &Opts, const llvm::Triple &Triple, 516 MacroBuilder &Builder) const override { 517 // PS3 PPU defines. 518 Builder.defineMacro("__PPC__"); 519 Builder.defineMacro("__PPU__"); 520 Builder.defineMacro("__CELLOS_LV2__"); 521 Builder.defineMacro("__ELF__"); 522 Builder.defineMacro("__LP32__"); 523 Builder.defineMacro("_ARCH_PPC64"); 524 Builder.defineMacro("__powerpc64__"); 525 } 526 527public: 528 PS3PPUTargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts) 529 : OSTargetInfo<Target>(Triple, Opts) { 530 this->LongWidth = this->LongAlign = 32; 531 this->PointerWidth = this->PointerAlign = 32; 532 this->IntMaxType = TargetInfo::SignedLongLong; 533 this->Int64Type = TargetInfo::SignedLongLong; 534 this->SizeType = TargetInfo::UnsignedInt; 535 this->resetDataLayout("E-m:e-p:32:32-i64:64-n32:64"); 536 } 537}; 538 539template <typename Target> 540class LLVM_LIBRARY_VISIBILITY PS4OSTargetInfo : public OSTargetInfo<Target> { 541protected: 542 void getOSDefines(const LangOptions &Opts, const llvm::Triple &Triple, 543 MacroBuilder &Builder) const override { 544 Builder.defineMacro("__FreeBSD__", "9"); 545 Builder.defineMacro("__FreeBSD_cc_version", "900001"); 546 Builder.defineMacro("__KPRINTF_ATTRIBUTE__"); 547 DefineStd(Builder, "unix", Opts); 548 Builder.defineMacro("__ELF__"); 549 Builder.defineMacro("__SCE__"); 550 Builder.defineMacro("__ORBIS__"); 551 } 552 553public: 554 PS4OSTargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts) 555 : OSTargetInfo<Target>(Triple, Opts) { 556 this->WCharType = TargetInfo::UnsignedShort; 557 558 // On PS4, TLS variable cannot be aligned to more than 32 bytes (256 bits). 559 this->MaxTLSAlign = 256; 560 561 // On PS4, do not honor explicit bit field alignment, 562 // as in "__attribute__((aligned(2))) int b : 1;". 563 this->UseExplicitBitFieldAlignment = false; 564 565 switch (Triple.getArch()) { 566 default: 567 case llvm::Triple::x86_64: 568 this->MCountName = ".mcount"; 569 this->NewAlign = 256; 570 break; 571 } 572 } 573 TargetInfo::CallingConvCheckResult 574 checkCallingConvention(CallingConv CC) const override { 575 return (CC == CC_C) ? TargetInfo::CCCR_OK : TargetInfo::CCCR_Error; 576 } 577}; 578 579// RTEMS Target 580template <typename Target> 581class LLVM_LIBRARY_VISIBILITY RTEMSTargetInfo : public OSTargetInfo<Target> { 582protected: 583 void getOSDefines(const LangOptions &Opts, const llvm::Triple &Triple, 584 MacroBuilder &Builder) const override { 585 // RTEMS defines; list based off of gcc output 586 587 Builder.defineMacro("__rtems__"); 588 Builder.defineMacro("__ELF__"); 589 if (Opts.CPlusPlus) 590 Builder.defineMacro("_GNU_SOURCE"); 591 } 592 593public: 594 RTEMSTargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts) 595 : OSTargetInfo<Target>(Triple, Opts) { 596 switch (Triple.getArch()) { 597 default: 598 case llvm::Triple::x86: 599 // this->MCountName = ".mcount"; 600 break; 601 case llvm::Triple::mips: 602 case llvm::Triple::mipsel: 603 case llvm::Triple::ppc: 604 case llvm::Triple::ppc64: 605 case llvm::Triple::ppc64le: 606 // this->MCountName = "_mcount"; 607 break; 608 case llvm::Triple::arm: 609 // this->MCountName = "__mcount"; 610 break; 611 } 612 } 613}; 614 615// Solaris target 616template <typename Target> 617class LLVM_LIBRARY_VISIBILITY SolarisTargetInfo : public OSTargetInfo<Target> { 618protected: 619 void getOSDefines(const LangOptions &Opts, const llvm::Triple &Triple, 620 MacroBuilder &Builder) const override { 621 DefineStd(Builder, "sun", Opts); 622 DefineStd(Builder, "unix", Opts); 623 Builder.defineMacro("__ELF__"); 624 Builder.defineMacro("__svr4__"); 625 Builder.defineMacro("__SVR4"); 626 // Solaris headers require _XOPEN_SOURCE to be set to 600 for C99 and 627 // newer, but to 500 for everything else. feature_test.h has a check to 628 // ensure that you are not using C99 with an old version of X/Open or C89 629 // with a new version. 630 if (Opts.C99) 631 Builder.defineMacro("_XOPEN_SOURCE", "600"); 632 else 633 Builder.defineMacro("_XOPEN_SOURCE", "500"); 634 if (Opts.CPlusPlus) { 635 Builder.defineMacro("__C99FEATURES__"); 636 Builder.defineMacro("_FILE_OFFSET_BITS", "64"); 637 } 638 // GCC restricts the next two to C++. 639 Builder.defineMacro("_LARGEFILE_SOURCE"); 640 Builder.defineMacro("_LARGEFILE64_SOURCE"); 641 Builder.defineMacro("__EXTENSIONS__"); 642 if (Opts.POSIXThreads) 643 Builder.defineMacro("_REENTRANT"); 644 if (this->HasFloat128) 645 Builder.defineMacro("__FLOAT128__"); 646 } 647 648public: 649 SolarisTargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts) 650 : OSTargetInfo<Target>(Triple, Opts) { 651 if (this->PointerWidth == 64) { 652 this->WCharType = this->WIntType = this->SignedInt; 653 } else { 654 this->WCharType = this->WIntType = this->SignedLong; 655 } 656 switch (Triple.getArch()) { 657 default: 658 break; 659 case llvm::Triple::x86: 660 case llvm::Triple::x86_64: 661 this->HasFloat128 = true; 662 break; 663 } 664 } 665}; 666 667// AIX Target 668template <typename Target> 669class AIXTargetInfo : public OSTargetInfo<Target> { 670protected: 671 void getOSDefines(const LangOptions &Opts, const llvm::Triple &Triple, 672 MacroBuilder &Builder) const override { 673 DefineStd(Builder, "unix", Opts); 674 Builder.defineMacro("_IBMR2"); 675 Builder.defineMacro("_POWER"); 676 677 Builder.defineMacro("_AIX"); 678 679 if (Opts.EnableAIXExtendedAltivecABI) 680 Builder.defineMacro("__EXTABI__"); 681 682 unsigned Major, Minor, Micro; 683 Triple.getOSVersion(Major, Minor, Micro); 684 685 // Define AIX OS-Version Macros. 686 // Includes logic for legacy versions of AIX; no specific intent to support. 687 std::pair<int, int> OsVersion = {Major, Minor}; 688 if (OsVersion >= std::make_pair(3, 2)) Builder.defineMacro("_AIX32"); 689 if (OsVersion >= std::make_pair(4, 1)) Builder.defineMacro("_AIX41"); 690 if (OsVersion >= std::make_pair(4, 3)) Builder.defineMacro("_AIX43"); 691 if (OsVersion >= std::make_pair(5, 0)) Builder.defineMacro("_AIX50"); 692 if (OsVersion >= std::make_pair(5, 1)) Builder.defineMacro("_AIX51"); 693 if (OsVersion >= std::make_pair(5, 2)) Builder.defineMacro("_AIX52"); 694 if (OsVersion >= std::make_pair(5, 3)) Builder.defineMacro("_AIX53"); 695 if (OsVersion >= std::make_pair(6, 1)) Builder.defineMacro("_AIX61"); 696 if (OsVersion >= std::make_pair(7, 1)) Builder.defineMacro("_AIX71"); 697 if (OsVersion >= std::make_pair(7, 2)) Builder.defineMacro("_AIX72"); 698 699 // FIXME: Do not define _LONG_LONG when -fno-long-long is specified. 700 Builder.defineMacro("_LONG_LONG"); 701 702 if (Opts.POSIXThreads) { 703 Builder.defineMacro("_THREAD_SAFE"); 704 } 705 706 if (this->PointerWidth == 64) { 707 Builder.defineMacro("__64BIT__"); 708 } 709 710 // Define _WCHAR_T when it is a fundamental type 711 // (i.e., for C++ without -fno-wchar). 712 if (Opts.CPlusPlus && Opts.WChar) { 713 Builder.defineMacro("_WCHAR_T"); 714 } 715 } 716 717public: 718 AIXTargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts) 719 : OSTargetInfo<Target>(Triple, Opts) { 720 this->TheCXXABI.set(TargetCXXABI::XL); 721 722 if (this->PointerWidth == 64) { 723 this->WCharType = this->UnsignedInt; 724 } else { 725 this->WCharType = this->UnsignedShort; 726 } 727 this->UseZeroLengthBitfieldAlignment = true; 728 } 729 730 // AIX sets FLT_EVAL_METHOD to be 1. 731 unsigned getFloatEvalMethod() const override { return 1; } 732 bool hasInt128Type() const override { return false; } 733 734 bool defaultsToAIXPowerAlignment() const override { return true; } 735}; 736 737// z/OS target 738template <typename Target> 739class LLVM_LIBRARY_VISIBILITY ZOSTargetInfo : public OSTargetInfo<Target> { 740protected: 741 void getOSDefines(const LangOptions &Opts, const llvm::Triple &Triple, 742 MacroBuilder &Builder) const override { 743 // FIXME: _LONG_LONG should not be defined under -std=c89. 744 Builder.defineMacro("_LONG_LONG"); 745 Builder.defineMacro("_OPEN_DEFAULT"); 746 // _UNIX03_WITHDRAWN is required to build libcxx. 747 Builder.defineMacro("_UNIX03_WITHDRAWN"); 748 Builder.defineMacro("__370__"); 749 Builder.defineMacro("__BFP__"); 750 // FIXME: __BOOL__ should not be defined under -std=c89. 751 Builder.defineMacro("__BOOL__"); 752 Builder.defineMacro("__LONGNAME__"); 753 Builder.defineMacro("__MVS__"); 754 Builder.defineMacro("__THW_370__"); 755 Builder.defineMacro("__THW_BIG_ENDIAN__"); 756 Builder.defineMacro("__TOS_390__"); 757 Builder.defineMacro("__TOS_MVS__"); 758 Builder.defineMacro("__XPLINK__"); 759 760 if (this->PointerWidth == 64) 761 Builder.defineMacro("__64BIT__"); 762 763 if (Opts.CPlusPlus) { 764 Builder.defineMacro("__DLL__"); 765 // _XOPEN_SOURCE=600 is required to build libcxx. 766 Builder.defineMacro("_XOPEN_SOURCE", "600"); 767 } 768 769 if (Opts.GNUMode) { 770 Builder.defineMacro("_MI_BUILTIN"); 771 Builder.defineMacro("_EXT"); 772 } 773 774 if (Opts.CPlusPlus && Opts.WChar) { 775 // Macro __wchar_t is defined so that the wchar_t data 776 // type is not declared as a typedef in system headers. 777 Builder.defineMacro("__wchar_t"); 778 } 779 780 this->PlatformName = llvm::Triple::getOSTypeName(Triple.getOS()); 781 } 782 783public: 784 ZOSTargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts) 785 : OSTargetInfo<Target>(Triple, Opts) { 786 this->WCharType = TargetInfo::UnsignedInt; 787 this->MaxAlignedAttribute = 128; 788 this->UseBitFieldTypeAlignment = false; 789 this->UseZeroLengthBitfieldAlignment = true; 790 this->UseLeadingZeroLengthBitfield = false; 791 this->ZeroLengthBitfieldBoundary = 32; 792 this->MinGlobalAlign = 0; 793 this->DefaultAlignForAttributeAligned = 128; 794 } 795}; 796 797void addWindowsDefines(const llvm::Triple &Triple, const LangOptions &Opts, 798 MacroBuilder &Builder); 799 800// Windows target 801template <typename Target> 802class LLVM_LIBRARY_VISIBILITY WindowsTargetInfo : public OSTargetInfo<Target> { 803protected: 804 void getOSDefines(const LangOptions &Opts, const llvm::Triple &Triple, 805 MacroBuilder &Builder) const override { 806 addWindowsDefines(Triple, Opts, Builder); 807 } 808 809public: 810 WindowsTargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts) 811 : OSTargetInfo<Target>(Triple, Opts) { 812 this->WCharType = TargetInfo::UnsignedShort; 813 this->WIntType = TargetInfo::UnsignedShort; 814 } 815}; 816 817template <typename Target> 818class LLVM_LIBRARY_VISIBILITY NaClTargetInfo : public OSTargetInfo<Target> { 819protected: 820 void getOSDefines(const LangOptions &Opts, const llvm::Triple &Triple, 821 MacroBuilder &Builder) const override { 822 if (Opts.POSIXThreads) 823 Builder.defineMacro("_REENTRANT"); 824 if (Opts.CPlusPlus) 825 Builder.defineMacro("_GNU_SOURCE"); 826 827 DefineStd(Builder, "unix", Opts); 828 Builder.defineMacro("__ELF__"); 829 Builder.defineMacro("__native_client__"); 830 } 831 832public: 833 NaClTargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts) 834 : OSTargetInfo<Target>(Triple, Opts) { 835 this->LongAlign = 32; 836 this->LongWidth = 32; 837 this->PointerAlign = 32; 838 this->PointerWidth = 32; 839 this->IntMaxType = TargetInfo::SignedLongLong; 840 this->Int64Type = TargetInfo::SignedLongLong; 841 this->DoubleAlign = 64; 842 this->LongDoubleWidth = 64; 843 this->LongDoubleAlign = 64; 844 this->LongLongWidth = 64; 845 this->LongLongAlign = 64; 846 this->SizeType = TargetInfo::UnsignedInt; 847 this->PtrDiffType = TargetInfo::SignedInt; 848 this->IntPtrType = TargetInfo::SignedInt; 849 // RegParmMax is inherited from the underlying architecture. 850 this->LongDoubleFormat = &llvm::APFloat::IEEEdouble(); 851 if (Triple.getArch() == llvm::Triple::arm) { 852 // Handled in ARM's setABI(). 853 } else if (Triple.getArch() == llvm::Triple::x86) { 854 this->resetDataLayout("e-m:e-p:32:32-p270:32:32-p271:32:32-p272:64:64-" 855 "i64:64-n8:16:32-S128"); 856 } else if (Triple.getArch() == llvm::Triple::x86_64) { 857 this->resetDataLayout("e-m:e-p:32:32-p270:32:32-p271:32:32-p272:64:64-" 858 "i64:64-n8:16:32:64-S128"); 859 } else if (Triple.getArch() == llvm::Triple::mipsel) { 860 // Handled on mips' setDataLayout. 861 } else { 862 assert(Triple.getArch() == llvm::Triple::le32); 863 this->resetDataLayout("e-p:32:32-i64:64"); 864 } 865 } 866}; 867 868// Fuchsia Target 869template <typename Target> 870class LLVM_LIBRARY_VISIBILITY FuchsiaTargetInfo : public OSTargetInfo<Target> { 871protected: 872 void getOSDefines(const LangOptions &Opts, const llvm::Triple &Triple, 873 MacroBuilder &Builder) const override { 874 Builder.defineMacro("__Fuchsia__"); 875 Builder.defineMacro("__ELF__"); 876 if (Opts.POSIXThreads) 877 Builder.defineMacro("_REENTRANT"); 878 // Required by the libc++ locale support. 879 if (Opts.CPlusPlus) 880 Builder.defineMacro("_GNU_SOURCE"); 881 } 882 883public: 884 FuchsiaTargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts) 885 : OSTargetInfo<Target>(Triple, Opts) { 886 this->MCountName = "__mcount"; 887 this->TheCXXABI.set(TargetCXXABI::Fuchsia); 888 } 889}; 890 891// WebAssembly target 892template <typename Target> 893class LLVM_LIBRARY_VISIBILITY WebAssemblyOSTargetInfo 894 : public OSTargetInfo<Target> { 895protected: 896 void getOSDefines(const LangOptions &Opts, const llvm::Triple &Triple, 897 MacroBuilder &Builder) const override { 898 // A common platform macro. 899 if (Opts.POSIXThreads) 900 Builder.defineMacro("_REENTRANT"); 901 // Follow g++ convention and predefine _GNU_SOURCE for C++. 902 if (Opts.CPlusPlus) 903 Builder.defineMacro("_GNU_SOURCE"); 904 // Indicate that we have __float128. 905 Builder.defineMacro("__FLOAT128__"); 906 } 907 908public: 909 explicit WebAssemblyOSTargetInfo(const llvm::Triple &Triple, 910 const TargetOptions &Opts) 911 : OSTargetInfo<Target>(Triple, Opts) { 912 this->MCountName = "__mcount"; 913 this->TheCXXABI.set(TargetCXXABI::WebAssembly); 914 this->HasFloat128 = true; 915 } 916}; 917 918// WASI target 919template <typename Target> 920class LLVM_LIBRARY_VISIBILITY WASITargetInfo 921 : public WebAssemblyOSTargetInfo<Target> { 922 void getOSDefines(const LangOptions &Opts, const llvm::Triple &Triple, 923 MacroBuilder &Builder) const final { 924 WebAssemblyOSTargetInfo<Target>::getOSDefines(Opts, Triple, Builder); 925 Builder.defineMacro("__wasi__"); 926 } 927 928public: 929 explicit WASITargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts) 930 : WebAssemblyOSTargetInfo<Target>(Triple, Opts) {} 931}; 932 933// Emscripten target 934template <typename Target> 935class LLVM_LIBRARY_VISIBILITY EmscriptenTargetInfo 936 : public WebAssemblyOSTargetInfo<Target> { 937 void getOSDefines(const LangOptions &Opts, const llvm::Triple &Triple, 938 MacroBuilder &Builder) const final { 939 WebAssemblyOSTargetInfo<Target>::getOSDefines(Opts, Triple, Builder); 940 Builder.defineMacro("__EMSCRIPTEN__"); 941 if (Opts.POSIXThreads) 942 Builder.defineMacro("__EMSCRIPTEN_PTHREADS__"); 943 } 944 945public: 946 explicit EmscriptenTargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts) 947 : WebAssemblyOSTargetInfo<Target>(Triple, Opts) {} 948}; 949 950} // namespace targets 951} // namespace clang 952#endif // LLVM_CLANG_LIB_BASIC_TARGETS_OSTARGETS_H 953