1 //===--- OSTargets.h - Declare OS target feature support --------*- C++ -*-===//
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
7 //===----------------------------------------------------------------------===//
9 // This file declares OS specific TargetInfo types.
10 //===----------------------------------------------------------------------===//
12 #ifndef LLVM_CLANG_LIB_BASIC_TARGETS_OSTARGETS_H
13 #define LLVM_CLANG_LIB_BASIC_TARGETS_OSTARGETS_H
16 #include "llvm/MC/MCSectionMachO.h"
21 template <typename TgtInfo>
22 class LLVM_LIBRARY_VISIBILITY OSTargetInfo : public TgtInfo {
24 virtual void getOSDefines(const LangOptions &Opts, const llvm::Triple &Triple,
25 MacroBuilder &Builder) const = 0;
28 OSTargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts)
29 : TgtInfo(Triple, Opts) {}
31 void getTargetDefines(const LangOptions &Opts,
32 MacroBuilder &Builder) const override {
33 TgtInfo::getTargetDefines(Opts, Builder);
34 getOSDefines(Opts, TgtInfo::getTriple(), Builder);
39 template <typename Target>
40 class LLVM_LIBRARY_VISIBILITY CloudABITargetInfo : public OSTargetInfo<Target> {
42 void getOSDefines(const LangOptions &Opts, const llvm::Triple &Triple,
43 MacroBuilder &Builder) const override {
44 Builder.defineMacro("__CloudABI__");
45 Builder.defineMacro("__ELF__");
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__");
54 CloudABITargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts)
55 : OSTargetInfo<Target>(Triple, Opts) {}
59 template <typename Target>
60 class LLVM_LIBRARY_VISIBILITY AnanasTargetInfo : public OSTargetInfo<Target> {
62 void getOSDefines(const LangOptions &Opts, const llvm::Triple &Triple,
63 MacroBuilder &Builder) const override {
65 Builder.defineMacro("__Ananas__");
66 Builder.defineMacro("__ELF__");
70 AnanasTargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts)
71 : OSTargetInfo<Target>(Triple, Opts) {}
74 void getDarwinDefines(MacroBuilder &Builder, const LangOptions &Opts,
75 const llvm::Triple &Triple, StringRef &PlatformName,
76 VersionTuple &PlatformMinVersion);
78 template <typename Target>
79 class LLVM_LIBRARY_VISIBILITY DarwinTargetInfo : public OSTargetInfo<Target> {
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);
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
92 this->TLSSupported = false;
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);
105 this->TLSSupported = !Triple.isOSVersionLT(10);
107 } else if (Triple.isWatchOS()) {
108 if (!Triple.isSimulatorEnvironment())
109 this->TLSSupported = !Triple.isOSVersionLT(2);
111 this->TLSSupported = !Triple.isOSVersionLT(3);
114 this->MCountName = "\01mcount";
117 std::string isValidSectionSpecifier(StringRef SR) const override {
118 // Let MCSectionMachO validate this.
119 StringRef Segment, Section;
120 unsigned TAA, StubSize;
122 return llvm::MCSectionMachO::ParseSectionSpecifier(SR, Segment, Section,
123 TAA, HasTAA, StubSize);
126 const char *getStaticInitSectionSpecifier() const override {
127 // FIXME: We should return 0 when building kexts.
128 return "__TEXT,__StaticInit,regular,pure_instructions";
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; }
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();
143 // Compute the earliest OS versions that have the fix to libc++abi.
145 case llvm::Triple::Darwin:
146 case llvm::Triple::MacOSX: // Earliest supporting version is 10.14.
147 MinVersion = llvm::VersionTuple(10U, 14U);
149 case llvm::Triple::IOS:
150 case llvm::Triple::TvOS: // Earliest supporting version is 12.0.0.
151 MinVersion = llvm::VersionTuple(12U);
153 case llvm::Triple::WatchOS: // Earliest supporting version is 5.0.0.
154 MinVersion = llvm::VersionTuple(5U);
157 llvm_unreachable("Unexpected OS");
160 unsigned Major, Minor, Micro;
161 T.getOSVersion(Major, Minor, Micro);
162 if (llvm::VersionTuple(Major, Minor, Micro) < MinVersion)
164 return OSTargetInfo<Target>::getExnObjectAlignment();
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);
177 // DragonFlyBSD Target
178 template <typename Target>
179 class LLVM_LIBRARY_VISIBILITY DragonFlyBSDTargetInfo
180 : public OSTargetInfo<Target> {
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);
194 DragonFlyBSDTargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts)
195 : OSTargetInfo<Target>(Triple, Opts) {
196 switch (Triple.getArch()) {
198 case llvm::Triple::x86:
199 case llvm::Triple::x86_64:
200 this->MCountName = ".mcount";
206 #ifndef FREEBSD_CC_VERSION
207 #define FREEBSD_CC_VERSION 0U
211 template <typename Target>
212 class LLVM_LIBRARY_VISIBILITY FreeBSDTargetInfo : public OSTargetInfo<Target> {
214 void getOSDefines(const LangOptions &Opts, const llvm::Triple &Triple,
215 MacroBuilder &Builder) const override {
216 // FreeBSD defines; list based off of gcc output
218 unsigned Release = Triple.getOSMajorVersion();
221 unsigned CCVersion = FREEBSD_CC_VERSION;
223 CCVersion = Release * 100000U + 1U;
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__");
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.
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");
244 FreeBSDTargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts)
245 : OSTargetInfo<Target>(Triple, Opts) {
246 switch (Triple.getArch()) {
248 case llvm::Triple::x86:
249 case llvm::Triple::x86_64:
250 this->MCountName = ".mcount";
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";
259 case llvm::Triple::arm:
260 this->MCountName = "__mcount";
266 // GNU/kFreeBSD Target
267 template <typename Target>
268 class LLVM_LIBRARY_VISIBILITY KFreeBSDTargetInfo : public OSTargetInfo<Target> {
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
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");
281 Builder.defineMacro("_GNU_SOURCE");
285 KFreeBSDTargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts)
286 : OSTargetInfo<Target>(Triple, Opts) {}
290 template <typename Target>
291 class LLVM_LIBRARY_VISIBILITY HaikuTargetInfo : public OSTargetInfo<Target> {
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__");
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()) {
314 case llvm::Triple::x86:
315 case llvm::Triple::x86_64:
316 this->HasFloat128 = true;
323 template <typename Target>
324 class LLVM_LIBRARY_VISIBILITY HurdTargetInfo : public OSTargetInfo<Target> {
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");
338 Builder.defineMacro("_GNU_SOURCE");
341 HurdTargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts)
342 : OSTargetInfo<Target>(Triple, Opts) {}
346 template <typename Target>
347 class LLVM_LIBRARY_VISIBILITY MinixTargetInfo : public OSTargetInfo<Target> {
349 void getOSDefines(const LangOptions &Opts, const llvm::Triple &Triple,
350 MacroBuilder &Builder) const override {
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);
365 MinixTargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts)
366 : OSTargetInfo<Target>(Triple, Opts) {}
370 template <typename Target>
371 class LLVM_LIBRARY_VISIBILITY LinuxTargetInfo : public OSTargetInfo<Target> {
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);
386 Builder.defineMacro("__ANDROID_API__", Twine(Maj));
388 Builder.defineMacro("__gnu_linux__");
390 if (Opts.POSIXThreads)
391 Builder.defineMacro("_REENTRANT");
393 Builder.defineMacro("_GNU_SOURCE");
394 if (this->HasFloat128)
395 Builder.defineMacro("__FLOAT128__");
399 LinuxTargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts)
400 : OSTargetInfo<Target>(Triple, Opts) {
401 this->WIntType = TargetInfo::UnsignedInt;
403 switch (Triple.getArch()) {
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";
415 case llvm::Triple::x86:
416 case llvm::Triple::x86_64:
417 this->HasFloat128 = true;
422 const char *getStaticInitSectionSpecifier() const override {
423 return ".text.startup";
428 template <typename Target>
429 class LLVM_LIBRARY_VISIBILITY NetBSDTargetInfo : public OSTargetInfo<Target> {
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");
442 NetBSDTargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts)
443 : OSTargetInfo<Target>(Triple, Opts) {
444 this->MCountName = "__mcount";
449 template <typename Target>
450 class LLVM_LIBRARY_VISIBILITY OpenBSDTargetInfo : public OSTargetInfo<Target> {
452 void getOSDefines(const LangOptions &Opts, const llvm::Triple &Triple,
453 MacroBuilder &Builder) const override {
454 // OpenBSD defines; list based off of gcc output
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__");
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;
474 this->MCountName = "__mcount";
476 case llvm::Triple::mips64:
477 case llvm::Triple::mips64el:
478 case llvm::Triple::ppc:
479 case llvm::Triple::sparcv9:
480 this->MCountName = "_mcount";
487 template <typename Target>
488 class LLVM_LIBRARY_VISIBILITY PSPTargetInfo : public OSTargetInfo<Target> {
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__");
500 PSPTargetInfo(const llvm::Triple &Triple) : OSTargetInfo<Target>(Triple) {}
504 template <typename Target>
505 class LLVM_LIBRARY_VISIBILITY PS3PPUTargetInfo : public OSTargetInfo<Target> {
507 void getOSDefines(const LangOptions &Opts, const llvm::Triple &Triple,
508 MacroBuilder &Builder) const override {
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__");
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");
531 template <typename Target>
532 class LLVM_LIBRARY_VISIBILITY PS4OSTargetInfo : public OSTargetInfo<Target> {
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__");
545 PS4OSTargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts)
546 : OSTargetInfo<Target>(Triple, Opts) {
547 this->WCharType = TargetInfo::UnsignedShort;
549 // On PS4, TLS variable cannot be aligned to more than 32 bytes (256 bits).
550 this->MaxTLSAlign = 256;
552 // On PS4, do not honor explicit bit field alignment,
553 // as in "__attribute__((aligned(2))) int b : 1;".
554 this->UseExplicitBitFieldAlignment = false;
556 switch (Triple.getArch()) {
558 case llvm::Triple::x86_64:
559 this->MCountName = ".mcount";
560 this->NewAlign = 256;
567 template <typename Target>
568 class LLVM_LIBRARY_VISIBILITY RTEMSTargetInfo : public OSTargetInfo<Target> {
570 void getOSDefines(const LangOptions &Opts, const llvm::Triple &Triple,
571 MacroBuilder &Builder) const override {
572 // RTEMS defines; list based off of gcc output
574 Builder.defineMacro("__rtems__");
575 Builder.defineMacro("__ELF__");
577 Builder.defineMacro("_GNU_SOURCE");
581 RTEMSTargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts)
582 : OSTargetInfo<Target>(Triple, Opts) {
583 switch (Triple.getArch()) {
585 case llvm::Triple::x86:
586 // this->MCountName = ".mcount";
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";
595 case llvm::Triple::arm:
596 // this->MCountName = "__mcount";
603 template <typename Target>
604 class LLVM_LIBRARY_VISIBILITY SolarisTargetInfo : public OSTargetInfo<Target> {
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.
618 Builder.defineMacro("_XOPEN_SOURCE", "600");
620 Builder.defineMacro("_XOPEN_SOURCE", "500");
621 if (Opts.CPlusPlus) {
622 Builder.defineMacro("__C99FEATURES__");
623 Builder.defineMacro("_FILE_OFFSET_BITS", "64");
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__");
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;
641 this->WCharType = this->WIntType = this->SignedLong;
643 switch (Triple.getArch()) {
646 case llvm::Triple::x86:
647 case llvm::Triple::x86_64:
648 this->HasFloat128 = true;
655 template <typename Target>
656 class AIXTargetInfo : public OSTargetInfo<Target> {
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");
664 Builder.defineMacro("_AIX");
666 unsigned Major, Minor, Micro;
667 Triple.getOSVersion(Major, Minor, Micro);
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");
683 // FIXME: Do not define _LONG_LONG when -fno-long-long is specified.
684 Builder.defineMacro("_LONG_LONG");
686 if (Opts.POSIXThreads) {
687 Builder.defineMacro("_THREAD_SAFE");
690 if (this->PointerWidth == 64) {
691 Builder.defineMacro("__64BIT__");
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");
702 AIXTargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts)
703 : OSTargetInfo<Target>(Triple, Opts) {
704 if (this->PointerWidth == 64) {
705 this->WCharType = this->UnsignedInt;
707 this->WCharType = this->UnsignedShort;
709 this->UseZeroLengthBitfieldAlignment = true;
712 // AIX sets FLT_EVAL_METHOD to be 1.
713 unsigned getFloatEvalMethod() const override { return 1; }
714 bool hasInt128Type() const override { return false; }
717 void addWindowsDefines(const llvm::Triple &Triple, const LangOptions &Opts,
718 MacroBuilder &Builder);
721 template <typename Target>
722 class LLVM_LIBRARY_VISIBILITY WindowsTargetInfo : public OSTargetInfo<Target> {
724 void getOSDefines(const LangOptions &Opts, const llvm::Triple &Triple,
725 MacroBuilder &Builder) const override {
726 addWindowsDefines(Triple, Opts, Builder);
730 WindowsTargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts)
731 : OSTargetInfo<Target>(Triple, Opts) {
732 this->WCharType = TargetInfo::UnsignedShort;
733 this->WIntType = TargetInfo::UnsignedShort;
737 template <typename Target>
738 class LLVM_LIBRARY_VISIBILITY NaClTargetInfo : public OSTargetInfo<Target> {
740 void getOSDefines(const LangOptions &Opts, const llvm::Triple &Triple,
741 MacroBuilder &Builder) const override {
742 if (Opts.POSIXThreads)
743 Builder.defineMacro("_REENTRANT");
745 Builder.defineMacro("_GNU_SOURCE");
747 DefineStd(Builder, "unix", Opts);
748 Builder.defineMacro("__ELF__");
749 Builder.defineMacro("__native_client__");
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.
780 assert(Triple.getArch() == llvm::Triple::le32);
781 this->resetDataLayout("e-p:32:32-i64:64");
787 template <typename Target>
788 class LLVM_LIBRARY_VISIBILITY FuchsiaTargetInfo : public OSTargetInfo<Target> {
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.
798 Builder.defineMacro("_GNU_SOURCE");
802 FuchsiaTargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts)
803 : OSTargetInfo<Target>(Triple, Opts) {
804 this->MCountName = "__mcount";
808 // WebAssembly target
809 template <typename Target>
810 class LLVM_LIBRARY_VISIBILITY WebAssemblyOSTargetInfo
811 : public OSTargetInfo<Target> {
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++.
820 Builder.defineMacro("_GNU_SOURCE");
821 // Indicate that we have __float128.
822 Builder.defineMacro("__FLOAT128__");
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;
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__");
846 explicit WASITargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts)
847 : WebAssemblyOSTargetInfo<Target>(Triple, Opts) {}
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__");
861 explicit EmscriptenTargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts)
862 : WebAssemblyOSTargetInfo<Target>(Triple, Opts) {}
865 } // namespace targets
867 #endif // LLVM_CLANG_LIB_BASIC_TARGETS_OSTARGETS_H