LLVM 17.0.0git
DarwinAsmParser.cpp
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1//===- DarwinAsmParser.cpp - Darwin (Mach-O) Assembly Parser --------------===//
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
10#include "llvm/ADT/StringRef.h"
12#include "llvm/ADT/Triple.h"
13#include "llvm/ADT/Twine.h"
15#include "llvm/MC/MCContext.h"
21#include "llvm/MC/MCStreamer.h"
22#include "llvm/MC/MCSymbol.h"
23#include "llvm/MC/SectionKind.h"
24#include "llvm/Support/Error.h"
27#include "llvm/Support/SMLoc.h"
30#include <cstddef>
31#include <cstdint>
32#include <string>
33#include <system_error>
34#include <utility>
35
36using namespace llvm;
37
38namespace {
39
40/// Implementation of directive handling which is shared across all
41/// Darwin targets.
42class DarwinAsmParser : public MCAsmParserExtension {
43 template<bool (DarwinAsmParser::*HandlerMethod)(StringRef, SMLoc)>
44 void addDirectiveHandler(StringRef Directive) {
45 MCAsmParser::ExtensionDirectiveHandler Handler = std::make_pair(
46 this, HandleDirective<DarwinAsmParser, HandlerMethod>);
48 }
49
50 bool parseSectionSwitch(StringRef Segment, StringRef Section,
51 unsigned TAA = 0, unsigned ImplicitAlign = 0,
52 unsigned StubSize = 0);
53
54 SMLoc LastVersionDirective;
55
56public:
57 DarwinAsmParser() = default;
58
59 void Initialize(MCAsmParser &Parser) override {
60 // Call the base implementation.
62
63 addDirectiveHandler<&DarwinAsmParser::parseDirectiveAltEntry>(".alt_entry");
64 addDirectiveHandler<&DarwinAsmParser::parseDirectiveDesc>(".desc");
65 addDirectiveHandler<&DarwinAsmParser::parseDirectiveIndirectSymbol>(
66 ".indirect_symbol");
67 addDirectiveHandler<&DarwinAsmParser::parseDirectiveLsym>(".lsym");
68 addDirectiveHandler<&DarwinAsmParser::parseDirectiveSubsectionsViaSymbols>(
69 ".subsections_via_symbols");
70 addDirectiveHandler<&DarwinAsmParser::parseDirectiveDumpOrLoad>(".dump");
71 addDirectiveHandler<&DarwinAsmParser::parseDirectiveDumpOrLoad>(".load");
72 addDirectiveHandler<&DarwinAsmParser::parseDirectiveSection>(".section");
73 addDirectiveHandler<&DarwinAsmParser::parseDirectivePushSection>(
74 ".pushsection");
75 addDirectiveHandler<&DarwinAsmParser::parseDirectivePopSection>(
76 ".popsection");
77 addDirectiveHandler<&DarwinAsmParser::parseDirectivePrevious>(".previous");
78 addDirectiveHandler<&DarwinAsmParser::parseDirectiveSecureLogUnique>(
79 ".secure_log_unique");
80 addDirectiveHandler<&DarwinAsmParser::parseDirectiveSecureLogReset>(
81 ".secure_log_reset");
82 addDirectiveHandler<&DarwinAsmParser::parseDirectiveTBSS>(".tbss");
83 addDirectiveHandler<&DarwinAsmParser::parseDirectiveZerofill>(".zerofill");
84
85 addDirectiveHandler<&DarwinAsmParser::parseDirectiveDataRegion>(
86 ".data_region");
87 addDirectiveHandler<&DarwinAsmParser::parseDirectiveDataRegionEnd>(
88 ".end_data_region");
89
90 // Special section directives.
91 addDirectiveHandler<&DarwinAsmParser::parseSectionDirectiveBss>(".bss");
92 addDirectiveHandler<&DarwinAsmParser::parseSectionDirectiveConst>(".const");
93 addDirectiveHandler<&DarwinAsmParser::parseSectionDirectiveConstData>(
94 ".const_data");
95 addDirectiveHandler<&DarwinAsmParser::parseSectionDirectiveConstructor>(
96 ".constructor");
97 addDirectiveHandler<&DarwinAsmParser::parseSectionDirectiveCString>(
98 ".cstring");
99 addDirectiveHandler<&DarwinAsmParser::parseSectionDirectiveData>(".data");
100 addDirectiveHandler<&DarwinAsmParser::parseSectionDirectiveDestructor>(
101 ".destructor");
102 addDirectiveHandler<&DarwinAsmParser::parseSectionDirectiveDyld>(".dyld");
103 addDirectiveHandler<&DarwinAsmParser::parseSectionDirectiveFVMLibInit0>(
104 ".fvmlib_init0");
105 addDirectiveHandler<&DarwinAsmParser::parseSectionDirectiveFVMLibInit1>(
106 ".fvmlib_init1");
107 addDirectiveHandler<
108 &DarwinAsmParser::parseSectionDirectiveLazySymbolPointers>(
109 ".lazy_symbol_pointer");
110 addDirectiveHandler<&DarwinAsmParser::parseDirectiveLinkerOption>(
111 ".linker_option");
112 addDirectiveHandler<&DarwinAsmParser::parseSectionDirectiveLiteral16>(
113 ".literal16");
114 addDirectiveHandler<&DarwinAsmParser::parseSectionDirectiveLiteral4>(
115 ".literal4");
116 addDirectiveHandler<&DarwinAsmParser::parseSectionDirectiveLiteral8>(
117 ".literal8");
118 addDirectiveHandler<&DarwinAsmParser::parseSectionDirectiveModInitFunc>(
119 ".mod_init_func");
120 addDirectiveHandler<&DarwinAsmParser::parseSectionDirectiveModTermFunc>(
121 ".mod_term_func");
122 addDirectiveHandler<
123 &DarwinAsmParser::parseSectionDirectiveNonLazySymbolPointers>(
124 ".non_lazy_symbol_pointer");
125 addDirectiveHandler<
126 &DarwinAsmParser::parseSectionDirectiveThreadLocalVariablePointers>(
127 ".thread_local_variable_pointer");
128 addDirectiveHandler<&DarwinAsmParser::parseSectionDirectiveObjCCatClsMeth>(
129 ".objc_cat_cls_meth");
130 addDirectiveHandler<&DarwinAsmParser::parseSectionDirectiveObjCCatInstMeth>(
131 ".objc_cat_inst_meth");
132 addDirectiveHandler<&DarwinAsmParser::parseSectionDirectiveObjCCategory>(
133 ".objc_category");
134 addDirectiveHandler<&DarwinAsmParser::parseSectionDirectiveObjCClass>(
135 ".objc_class");
136 addDirectiveHandler<&DarwinAsmParser::parseSectionDirectiveObjCClassNames>(
137 ".objc_class_names");
138 addDirectiveHandler<&DarwinAsmParser::parseSectionDirectiveObjCClassVars>(
139 ".objc_class_vars");
140 addDirectiveHandler<&DarwinAsmParser::parseSectionDirectiveObjCClsMeth>(
141 ".objc_cls_meth");
142 addDirectiveHandler<&DarwinAsmParser::parseSectionDirectiveObjCClsRefs>(
143 ".objc_cls_refs");
144 addDirectiveHandler<&DarwinAsmParser::parseSectionDirectiveObjCInstMeth>(
145 ".objc_inst_meth");
146 addDirectiveHandler<
147 &DarwinAsmParser::parseSectionDirectiveObjCInstanceVars>(
148 ".objc_instance_vars");
149 addDirectiveHandler<&DarwinAsmParser::parseSectionDirectiveObjCMessageRefs>(
150 ".objc_message_refs");
151 addDirectiveHandler<&DarwinAsmParser::parseSectionDirectiveObjCMetaClass>(
152 ".objc_meta_class");
153 addDirectiveHandler<
154 &DarwinAsmParser::parseSectionDirectiveObjCMethVarNames>(
155 ".objc_meth_var_names");
156 addDirectiveHandler<
157 &DarwinAsmParser::parseSectionDirectiveObjCMethVarTypes>(
158 ".objc_meth_var_types");
159 addDirectiveHandler<&DarwinAsmParser::parseSectionDirectiveObjCModuleInfo>(
160 ".objc_module_info");
161 addDirectiveHandler<&DarwinAsmParser::parseSectionDirectiveObjCProtocol>(
162 ".objc_protocol");
163 addDirectiveHandler<
164 &DarwinAsmParser::parseSectionDirectiveObjCSelectorStrs>(
165 ".objc_selector_strs");
166 addDirectiveHandler<
167 &DarwinAsmParser::parseSectionDirectiveObjCStringObject>(
168 ".objc_string_object");
169 addDirectiveHandler<&DarwinAsmParser::parseSectionDirectiveObjCSymbols>(
170 ".objc_symbols");
171 addDirectiveHandler<&DarwinAsmParser::parseSectionDirectivePICSymbolStub>(
172 ".picsymbol_stub");
173 addDirectiveHandler<&DarwinAsmParser::parseSectionDirectiveStaticConst>(
174 ".static_const");
175 addDirectiveHandler<&DarwinAsmParser::parseSectionDirectiveStaticData>(
176 ".static_data");
177 addDirectiveHandler<&DarwinAsmParser::parseSectionDirectiveSymbolStub>(
178 ".symbol_stub");
179 addDirectiveHandler<&DarwinAsmParser::parseSectionDirectiveTData>(".tdata");
180 addDirectiveHandler<&DarwinAsmParser::parseSectionDirectiveText>(".text");
181 addDirectiveHandler<&DarwinAsmParser::parseSectionDirectiveThreadInitFunc>(
182 ".thread_init_func");
183 addDirectiveHandler<&DarwinAsmParser::parseSectionDirectiveTLV>(".tlv");
184
185 addDirectiveHandler<&DarwinAsmParser::parseSectionDirectiveIdent>(".ident");
186 addDirectiveHandler<&DarwinAsmParser::parseWatchOSVersionMin>(
187 ".watchos_version_min");
188 addDirectiveHandler<&DarwinAsmParser::parseTvOSVersionMin>(
189 ".tvos_version_min");
190 addDirectiveHandler<&DarwinAsmParser::parseIOSVersionMin>(
191 ".ios_version_min");
192 addDirectiveHandler<&DarwinAsmParser::parseMacOSXVersionMin>(
193 ".macosx_version_min");
194 addDirectiveHandler<&DarwinAsmParser::parseBuildVersion>(".build_version");
195 addDirectiveHandler<&DarwinAsmParser::parseDirectiveCGProfile>(
196 ".cg_profile");
197
198 LastVersionDirective = SMLoc();
199 }
200
201 bool parseDirectiveAltEntry(StringRef, SMLoc);
202 bool parseDirectiveDesc(StringRef, SMLoc);
203 bool parseDirectiveIndirectSymbol(StringRef, SMLoc);
204 bool parseDirectiveDumpOrLoad(StringRef, SMLoc);
205 bool parseDirectiveLsym(StringRef, SMLoc);
206 bool parseDirectiveLinkerOption(StringRef, SMLoc);
207 bool parseDirectiveSection(StringRef, SMLoc);
208 bool parseDirectivePushSection(StringRef, SMLoc);
209 bool parseDirectivePopSection(StringRef, SMLoc);
210 bool parseDirectivePrevious(StringRef, SMLoc);
211 bool parseDirectiveSecureLogReset(StringRef, SMLoc);
212 bool parseDirectiveSecureLogUnique(StringRef, SMLoc);
213 bool parseDirectiveSubsectionsViaSymbols(StringRef, SMLoc);
214 bool parseDirectiveTBSS(StringRef, SMLoc);
215 bool parseDirectiveZerofill(StringRef, SMLoc);
216 bool parseDirectiveDataRegion(StringRef, SMLoc);
217 bool parseDirectiveDataRegionEnd(StringRef, SMLoc);
218
219 // Named Section Directive
220 bool parseSectionDirectiveBss(StringRef, SMLoc) {
221 return parseSectionSwitch("__DATA", "__bss");
222 }
223
224 bool parseSectionDirectiveConst(StringRef, SMLoc) {
225 return parseSectionSwitch("__TEXT", "__const");
226 }
227
228 bool parseSectionDirectiveStaticConst(StringRef, SMLoc) {
229 return parseSectionSwitch("__TEXT", "__static_const");
230 }
231
232 bool parseSectionDirectiveCString(StringRef, SMLoc) {
233 return parseSectionSwitch("__TEXT","__cstring",
235 }
236
237 bool parseSectionDirectiveLiteral4(StringRef, SMLoc) {
238 return parseSectionSwitch("__TEXT", "__literal4",
240 }
241
242 bool parseSectionDirectiveLiteral8(StringRef, SMLoc) {
243 return parseSectionSwitch("__TEXT", "__literal8",
245 }
246
247 bool parseSectionDirectiveLiteral16(StringRef, SMLoc) {
248 return parseSectionSwitch("__TEXT","__literal16",
250 }
251
252 bool parseSectionDirectiveConstructor(StringRef, SMLoc) {
253 return parseSectionSwitch("__TEXT","__constructor");
254 }
255
256 bool parseSectionDirectiveDestructor(StringRef, SMLoc) {
257 return parseSectionSwitch("__TEXT","__destructor");
258 }
259
260 bool parseSectionDirectiveFVMLibInit0(StringRef, SMLoc) {
261 return parseSectionSwitch("__TEXT","__fvmlib_init0");
262 }
263
264 bool parseSectionDirectiveFVMLibInit1(StringRef, SMLoc) {
265 return parseSectionSwitch("__TEXT","__fvmlib_init1");
266 }
267
268 bool parseSectionDirectiveSymbolStub(StringRef, SMLoc) {
269 return parseSectionSwitch("__TEXT","__symbol_stub",
272 // FIXME: Different on PPC and ARM.
273 0, 16);
274 }
275
276 bool parseSectionDirectivePICSymbolStub(StringRef, SMLoc) {
277 return parseSectionSwitch("__TEXT","__picsymbol_stub",
280 }
281
282 bool parseSectionDirectiveData(StringRef, SMLoc) {
283 return parseSectionSwitch("__DATA", "__data");
284 }
285
286 bool parseSectionDirectiveStaticData(StringRef, SMLoc) {
287 return parseSectionSwitch("__DATA", "__static_data");
288 }
289
290 bool parseSectionDirectiveNonLazySymbolPointers(StringRef, SMLoc) {
291 return parseSectionSwitch("__DATA", "__nl_symbol_ptr",
293 }
294
295 bool parseSectionDirectiveLazySymbolPointers(StringRef, SMLoc) {
296 return parseSectionSwitch("__DATA", "__la_symbol_ptr",
298 }
299
300 bool parseSectionDirectiveThreadLocalVariablePointers(StringRef, SMLoc) {
301 return parseSectionSwitch("__DATA", "__thread_ptr",
303 }
304
305 bool parseSectionDirectiveDyld(StringRef, SMLoc) {
306 return parseSectionSwitch("__DATA", "__dyld");
307 }
308
309 bool parseSectionDirectiveModInitFunc(StringRef, SMLoc) {
310 return parseSectionSwitch("__DATA", "__mod_init_func",
312 }
313
314 bool parseSectionDirectiveModTermFunc(StringRef, SMLoc) {
315 return parseSectionSwitch("__DATA", "__mod_term_func",
317 }
318
319 bool parseSectionDirectiveConstData(StringRef, SMLoc) {
320 return parseSectionSwitch("__DATA", "__const");
321 }
322
323 bool parseSectionDirectiveObjCClass(StringRef, SMLoc) {
324 return parseSectionSwitch("__OBJC", "__class",
326 }
327
328 bool parseSectionDirectiveObjCMetaClass(StringRef, SMLoc) {
329 return parseSectionSwitch("__OBJC", "__meta_class",
331 }
332
333 bool parseSectionDirectiveObjCCatClsMeth(StringRef, SMLoc) {
334 return parseSectionSwitch("__OBJC", "__cat_cls_meth",
336 }
337
338 bool parseSectionDirectiveObjCCatInstMeth(StringRef, SMLoc) {
339 return parseSectionSwitch("__OBJC", "__cat_inst_meth",
341 }
342
343 bool parseSectionDirectiveObjCProtocol(StringRef, SMLoc) {
344 return parseSectionSwitch("__OBJC", "__protocol",
346 }
347
348 bool parseSectionDirectiveObjCStringObject(StringRef, SMLoc) {
349 return parseSectionSwitch("__OBJC", "__string_object",
351 }
352
353 bool parseSectionDirectiveObjCClsMeth(StringRef, SMLoc) {
354 return parseSectionSwitch("__OBJC", "__cls_meth",
356 }
357
358 bool parseSectionDirectiveObjCInstMeth(StringRef, SMLoc) {
359 return parseSectionSwitch("__OBJC", "__inst_meth",
361 }
362
363 bool parseSectionDirectiveObjCClsRefs(StringRef, SMLoc) {
364 return parseSectionSwitch("__OBJC", "__cls_refs",
367 }
368
369 bool parseSectionDirectiveObjCMessageRefs(StringRef, SMLoc) {
370 return parseSectionSwitch("__OBJC", "__message_refs",
373 }
374
375 bool parseSectionDirectiveObjCSymbols(StringRef, SMLoc) {
376 return parseSectionSwitch("__OBJC", "__symbols",
378 }
379
380 bool parseSectionDirectiveObjCCategory(StringRef, SMLoc) {
381 return parseSectionSwitch("__OBJC", "__category",
383 }
384
385 bool parseSectionDirectiveObjCClassVars(StringRef, SMLoc) {
386 return parseSectionSwitch("__OBJC", "__class_vars",
388 }
389
390 bool parseSectionDirectiveObjCInstanceVars(StringRef, SMLoc) {
391 return parseSectionSwitch("__OBJC", "__instance_vars",
393 }
394
395 bool parseSectionDirectiveObjCModuleInfo(StringRef, SMLoc) {
396 return parseSectionSwitch("__OBJC", "__module_info",
398 }
399
400 bool parseSectionDirectiveObjCClassNames(StringRef, SMLoc) {
401 return parseSectionSwitch("__TEXT", "__cstring",
403 }
404
405 bool parseSectionDirectiveObjCMethVarTypes(StringRef, SMLoc) {
406 return parseSectionSwitch("__TEXT", "__cstring",
408 }
409
410 bool parseSectionDirectiveObjCMethVarNames(StringRef, SMLoc) {
411 return parseSectionSwitch("__TEXT", "__cstring",
413 }
414
415 bool parseSectionDirectiveObjCSelectorStrs(StringRef, SMLoc) {
416 return parseSectionSwitch("__OBJC", "__selector_strs",
418 }
419
420 bool parseSectionDirectiveTData(StringRef, SMLoc) {
421 return parseSectionSwitch("__DATA", "__thread_data",
423 }
424
425 bool parseSectionDirectiveText(StringRef, SMLoc) {
426 return parseSectionSwitch("__TEXT", "__text",
428 }
429
430 bool parseSectionDirectiveTLV(StringRef, SMLoc) {
431 return parseSectionSwitch("__DATA", "__thread_vars",
433 }
434
435 bool parseSectionDirectiveIdent(StringRef, SMLoc) {
436 // Darwin silently ignores the .ident directive.
438 return false;
439 }
440
441 bool parseSectionDirectiveThreadInitFunc(StringRef, SMLoc) {
442 return parseSectionSwitch("__DATA", "__thread_init",
444 }
445
446 bool parseWatchOSVersionMin(StringRef Directive, SMLoc Loc) {
447 return parseVersionMin(Directive, Loc, MCVM_WatchOSVersionMin);
448 }
449 bool parseTvOSVersionMin(StringRef Directive, SMLoc Loc) {
450 return parseVersionMin(Directive, Loc, MCVM_TvOSVersionMin);
451 }
452 bool parseIOSVersionMin(StringRef Directive, SMLoc Loc) {
453 return parseVersionMin(Directive, Loc, MCVM_IOSVersionMin);
454 }
455 bool parseMacOSXVersionMin(StringRef Directive, SMLoc Loc) {
456 return parseVersionMin(Directive, Loc, MCVM_OSXVersionMin);
457 }
458
459 bool parseBuildVersion(StringRef Directive, SMLoc Loc);
460 bool parseVersionMin(StringRef Directive, SMLoc Loc, MCVersionMinType Type);
461 bool parseMajorMinorVersionComponent(unsigned *Major, unsigned *Minor,
462 const char *VersionName);
463 bool parseOptionalTrailingVersionComponent(unsigned *Component,
464 const char *ComponentName);
465 bool parseVersion(unsigned *Major, unsigned *Minor, unsigned *Update);
466 bool parseSDKVersion(VersionTuple &SDKVersion);
467 void checkVersion(StringRef Directive, StringRef Arg, SMLoc Loc,
468 Triple::OSType ExpectedOS);
469 bool parseDirectiveCGProfile(StringRef Directive, SMLoc Loc);
470};
471
472} // end anonymous namespace
473
474bool DarwinAsmParser::parseSectionSwitch(StringRef Segment, StringRef Section,
475 unsigned TAA, unsigned Alignment,
476 unsigned StubSize) {
477 if (getLexer().isNot(AsmToken::EndOfStatement))
478 return TokError("unexpected token in section switching directive");
479 Lex();
480
481 // FIXME: Arch specific.
482 bool isText = TAA & MachO::S_ATTR_PURE_INSTRUCTIONS;
483 getStreamer().switchSection(getContext().getMachOSection(
484 Segment, Section, TAA, StubSize,
486
487 // Set the implicit alignment, if any.
488 //
489 // FIXME: This isn't really what 'as' does; I think it just uses the implicit
490 // alignment on the section (e.g., if one manually inserts bytes into the
491 // section, then just issuing the section switch directive will not realign
492 // the section. However, this is arguably more reasonable behavior, and there
493 // is no good reason for someone to intentionally emit incorrectly sized
494 // values into the implicitly aligned sections.
495 if (Alignment)
496 getStreamer().emitValueToAlignment(Align(Alignment));
497
498 return false;
499}
500
501/// parseDirectiveAltEntry
502/// ::= .alt_entry identifier
503bool DarwinAsmParser::parseDirectiveAltEntry(StringRef, SMLoc) {
505 if (getParser().parseIdentifier(Name))
506 return TokError("expected identifier in directive");
507
508 // Look up symbol.
509 MCSymbol *Sym = getContext().getOrCreateSymbol(Name);
510
511 if (Sym->isDefined())
512 return TokError(".alt_entry must preceed symbol definition");
513
514 if (!getStreamer().emitSymbolAttribute(Sym, MCSA_AltEntry))
515 return TokError("unable to emit symbol attribute");
516
517 Lex();
518 return false;
519}
520
521/// parseDirectiveDesc
522/// ::= .desc identifier , expression
523bool DarwinAsmParser::parseDirectiveDesc(StringRef, SMLoc) {
525 if (getParser().parseIdentifier(Name))
526 return TokError("expected identifier in directive");
527
528 // Handle the identifier as the key symbol.
529 MCSymbol *Sym = getContext().getOrCreateSymbol(Name);
530
531 if (getLexer().isNot(AsmToken::Comma))
532 return TokError("unexpected token in '.desc' directive");
533 Lex();
534
535 int64_t DescValue;
536 if (getParser().parseAbsoluteExpression(DescValue))
537 return true;
538
539 if (getLexer().isNot(AsmToken::EndOfStatement))
540 return TokError("unexpected token in '.desc' directive");
541
542 Lex();
543
544 // Set the n_desc field of this Symbol to this DescValue
545 getStreamer().emitSymbolDesc(Sym, DescValue);
546
547 return false;
548}
549
550/// parseDirectiveIndirectSymbol
551/// ::= .indirect_symbol identifier
552bool DarwinAsmParser::parseDirectiveIndirectSymbol(StringRef, SMLoc Loc) {
553 const MCSectionMachO *Current = static_cast<const MCSectionMachO *>(
554 getStreamer().getCurrentSectionOnly());
556 if (SectionType != MachO::S_NON_LAZY_SYMBOL_POINTERS &&
557 SectionType != MachO::S_LAZY_SYMBOL_POINTERS &&
559 SectionType != MachO::S_SYMBOL_STUBS)
560 return Error(Loc, "indirect symbol not in a symbol pointer or stub "
561 "section");
562
564 if (getParser().parseIdentifier(Name))
565 return TokError("expected identifier in .indirect_symbol directive");
566
567 MCSymbol *Sym = getContext().getOrCreateSymbol(Name);
568
569 // Assembler local symbols don't make any sense here. Complain loudly.
570 if (Sym->isTemporary())
571 return TokError("non-local symbol required in directive");
572
573 if (!getStreamer().emitSymbolAttribute(Sym, MCSA_IndirectSymbol))
574 return TokError("unable to emit indirect symbol attribute for: " + Name);
575
576 if (getLexer().isNot(AsmToken::EndOfStatement))
577 return TokError("unexpected token in '.indirect_symbol' directive");
578
579 Lex();
580
581 return false;
582}
583
584/// parseDirectiveDumpOrLoad
585/// ::= ( .dump | .load ) "filename"
586bool DarwinAsmParser::parseDirectiveDumpOrLoad(StringRef Directive,
587 SMLoc IDLoc) {
588 bool IsDump = Directive == ".dump";
589 if (getLexer().isNot(AsmToken::String))
590 return TokError("expected string in '.dump' or '.load' directive");
591
592 Lex();
593
594 if (getLexer().isNot(AsmToken::EndOfStatement))
595 return TokError("unexpected token in '.dump' or '.load' directive");
596
597 Lex();
598
599 // FIXME: If/when .dump and .load are implemented they will be done in the
600 // the assembly parser and not have any need for an MCStreamer API.
601 if (IsDump)
602 return Warning(IDLoc, "ignoring directive .dump for now");
603 else
604 return Warning(IDLoc, "ignoring directive .load for now");
605}
606
607/// ParseDirectiveLinkerOption
608/// ::= .linker_option "string" ( , "string" )*
609bool DarwinAsmParser::parseDirectiveLinkerOption(StringRef IDVal, SMLoc) {
611 while (true) {
612 if (getLexer().isNot(AsmToken::String))
613 return TokError("expected string in '" + Twine(IDVal) + "' directive");
614
615 std::string Data;
616 if (getParser().parseEscapedString(Data))
617 return true;
618
619 Args.push_back(Data);
620
621 if (getLexer().is(AsmToken::EndOfStatement))
622 break;
623
624 if (getLexer().isNot(AsmToken::Comma))
625 return TokError("unexpected token in '" + Twine(IDVal) + "' directive");
626 Lex();
627 }
628
629 getStreamer().emitLinkerOptions(Args);
630 return false;
631}
632
633/// parseDirectiveLsym
634/// ::= .lsym identifier , expression
635bool DarwinAsmParser::parseDirectiveLsym(StringRef, SMLoc) {
637 if (getParser().parseIdentifier(Name))
638 return TokError("expected identifier in directive");
639
640 // Handle the identifier as the key symbol.
641 MCSymbol *Sym = getContext().getOrCreateSymbol(Name);
642
643 if (getLexer().isNot(AsmToken::Comma))
644 return TokError("unexpected token in '.lsym' directive");
645 Lex();
646
647 const MCExpr *Value;
648 if (getParser().parseExpression(Value))
649 return true;
650
651 if (getLexer().isNot(AsmToken::EndOfStatement))
652 return TokError("unexpected token in '.lsym' directive");
653
654 Lex();
655
656 // We don't currently support this directive.
657 //
658 // FIXME: Diagnostic location!
659 (void) Sym;
660 return TokError("directive '.lsym' is unsupported");
661}
662
663/// parseDirectiveSection:
664/// ::= .section identifier (',' identifier)*
665bool DarwinAsmParser::parseDirectiveSection(StringRef, SMLoc) {
666 SMLoc Loc = getLexer().getLoc();
667
669 if (getParser().parseIdentifier(SectionName))
670 return Error(Loc, "expected identifier after '.section' directive");
671
672 // Verify there is a following comma.
673 if (!getLexer().is(AsmToken::Comma))
674 return TokError("unexpected token in '.section' directive");
675
676 std::string SectionSpec = std::string(SectionName);
677 SectionSpec += ",";
678
679 // Add all the tokens until the end of the line, ParseSectionSpecifier will
680 // handle this.
681 StringRef EOL = getLexer().LexUntilEndOfStatement();
682 SectionSpec.append(EOL.begin(), EOL.end());
683
684 Lex();
685 if (getLexer().isNot(AsmToken::EndOfStatement))
686 return TokError("unexpected token in '.section' directive");
687 Lex();
688
689 StringRef Segment, Section;
690 unsigned StubSize;
691 unsigned TAA;
692 bool TAAParsed;
694 SectionSpec, Segment, Section, TAA, TAAParsed, StubSize))
695 return Error(Loc, toString(std::move(E)));
696
697 // Issue a warning if the target is not powerpc and Section is a *coal* section.
698 Triple TT = getParser().getContext().getTargetTriple();
699 Triple::ArchType ArchTy = TT.getArch();
700
701 if (ArchTy != Triple::ppc && ArchTy != Triple::ppc64) {
702 StringRef NonCoalSection = StringSwitch<StringRef>(Section)
703 .Case("__textcoal_nt", "__text")
704 .Case("__const_coal", "__const")
705 .Case("__datacoal_nt", "__data")
706 .Default(Section);
707
708 if (!Section.equals(NonCoalSection)) {
709 StringRef SectionVal(Loc.getPointer());
710 size_t B = SectionVal.find(',') + 1, E = SectionVal.find(',', B);
711 SMLoc BLoc = SMLoc::getFromPointer(SectionVal.data() + B);
712 SMLoc ELoc = SMLoc::getFromPointer(SectionVal.data() + E);
713 getParser().Warning(Loc, "section \"" + Section + "\" is deprecated",
714 SMRange(BLoc, ELoc));
715 getParser().Note(Loc, "change section name to \"" + NonCoalSection +
716 "\"", SMRange(BLoc, ELoc));
717 }
718 }
719
720 // FIXME: Arch specific.
721 bool isText = Segment == "__TEXT"; // FIXME: Hack.
722 getStreamer().switchSection(getContext().getMachOSection(
723 Segment, Section, TAA, StubSize,
725 return false;
726}
727
728/// ParseDirectivePushSection:
729/// ::= .pushsection identifier (',' identifier)*
730bool DarwinAsmParser::parseDirectivePushSection(StringRef S, SMLoc Loc) {
731 getStreamer().pushSection();
732
733 if (parseDirectiveSection(S, Loc)) {
734 getStreamer().popSection();
735 return true;
736 }
737
738 return false;
739}
740
741/// ParseDirectivePopSection:
742/// ::= .popsection
743bool DarwinAsmParser::parseDirectivePopSection(StringRef, SMLoc) {
744 if (!getStreamer().popSection())
745 return TokError(".popsection without corresponding .pushsection");
746 return false;
747}
748
749/// ParseDirectivePrevious:
750/// ::= .previous
751bool DarwinAsmParser::parseDirectivePrevious(StringRef DirName, SMLoc) {
752 MCSectionSubPair PreviousSection = getStreamer().getPreviousSection();
753 if (!PreviousSection.first)
754 return TokError(".previous without corresponding .section");
755 getStreamer().switchSection(PreviousSection.first, PreviousSection.second);
756 return false;
757}
758
759/// ParseDirectiveSecureLogUnique
760/// ::= .secure_log_unique ... message ...
761bool DarwinAsmParser::parseDirectiveSecureLogUnique(StringRef, SMLoc IDLoc) {
762 StringRef LogMessage = getParser().parseStringToEndOfStatement();
763 if (getLexer().isNot(AsmToken::EndOfStatement))
764 return TokError("unexpected token in '.secure_log_unique' directive");
765
766 if (getContext().getSecureLogUsed())
767 return Error(IDLoc, ".secure_log_unique specified multiple times");
768
769 // Get the secure log path.
770 StringRef SecureLogFile = getContext().getSecureLogFile();
771 if (SecureLogFile.empty())
772 return Error(IDLoc, ".secure_log_unique used but AS_SECURE_LOG_FILE "
773 "environment variable unset.");
774
775 // Open the secure log file if we haven't already.
776 raw_fd_ostream *OS = getContext().getSecureLog();
777 if (!OS) {
778 std::error_code EC;
779 auto NewOS = std::make_unique<raw_fd_ostream>(
780 SecureLogFile, EC, sys::fs::OF_Append | sys::fs::OF_TextWithCRLF);
781 if (EC)
782 return Error(IDLoc, Twine("can't open secure log file: ") +
783 SecureLogFile + " (" + EC.message() + ")");
784 OS = NewOS.get();
785 getContext().setSecureLog(std::move(NewOS));
786 }
787
788 // Write the message.
789 unsigned CurBuf = getSourceManager().FindBufferContainingLoc(IDLoc);
790 *OS << getSourceManager().getBufferInfo(CurBuf).Buffer->getBufferIdentifier()
791 << ":" << getSourceManager().FindLineNumber(IDLoc, CurBuf) << ":"
792 << LogMessage + "\n";
793
794 getContext().setSecureLogUsed(true);
795
796 return false;
797}
798
799/// ParseDirectiveSecureLogReset
800/// ::= .secure_log_reset
801bool DarwinAsmParser::parseDirectiveSecureLogReset(StringRef, SMLoc IDLoc) {
802 if (getLexer().isNot(AsmToken::EndOfStatement))
803 return TokError("unexpected token in '.secure_log_reset' directive");
804
805 Lex();
806
807 getContext().setSecureLogUsed(false);
808
809 return false;
810}
811
812/// parseDirectiveSubsectionsViaSymbols
813/// ::= .subsections_via_symbols
814bool DarwinAsmParser::parseDirectiveSubsectionsViaSymbols(StringRef, SMLoc) {
815 if (getLexer().isNot(AsmToken::EndOfStatement))
816 return TokError("unexpected token in '.subsections_via_symbols' directive");
817
818 Lex();
819
820 getStreamer().emitAssemblerFlag(MCAF_SubsectionsViaSymbols);
821
822 return false;
823}
824
825/// ParseDirectiveTBSS
826/// ::= .tbss identifier, size, align
827bool DarwinAsmParser::parseDirectiveTBSS(StringRef, SMLoc) {
828 SMLoc IDLoc = getLexer().getLoc();
830 if (getParser().parseIdentifier(Name))
831 return TokError("expected identifier in directive");
832
833 // Handle the identifier as the key symbol.
834 MCSymbol *Sym = getContext().getOrCreateSymbol(Name);
835
836 if (getLexer().isNot(AsmToken::Comma))
837 return TokError("unexpected token in directive");
838 Lex();
839
840 int64_t Size;
841 SMLoc SizeLoc = getLexer().getLoc();
842 if (getParser().parseAbsoluteExpression(Size))
843 return true;
844
845 int64_t Pow2Alignment = 0;
846 SMLoc Pow2AlignmentLoc;
847 if (getLexer().is(AsmToken::Comma)) {
848 Lex();
849 Pow2AlignmentLoc = getLexer().getLoc();
850 if (getParser().parseAbsoluteExpression(Pow2Alignment))
851 return true;
852 }
853
854 if (getLexer().isNot(AsmToken::EndOfStatement))
855 return TokError("unexpected token in '.tbss' directive");
856
857 Lex();
858
859 if (Size < 0)
860 return Error(SizeLoc, "invalid '.tbss' directive size, can't be less than"
861 "zero");
862
863 // FIXME: Diagnose overflow.
864 if (Pow2Alignment < 0)
865 return Error(Pow2AlignmentLoc, "invalid '.tbss' alignment, can't be less"
866 "than zero");
867
868 if (!Sym->isUndefined())
869 return Error(IDLoc, "invalid symbol redefinition");
870
871 getStreamer().emitTBSSSymbol(
872 getContext().getMachOSection("__DATA", "__thread_bss",
875 Sym, Size, Align(1ULL << Pow2Alignment));
876
877 return false;
878}
879
880/// ParseDirectiveZerofill
881/// ::= .zerofill segname , sectname [, identifier , size_expression [
882/// , align_expression ]]
883bool DarwinAsmParser::parseDirectiveZerofill(StringRef, SMLoc) {
884 StringRef Segment;
885 if (getParser().parseIdentifier(Segment))
886 return TokError("expected segment name after '.zerofill' directive");
887
888 if (getLexer().isNot(AsmToken::Comma))
889 return TokError("unexpected token in directive");
890 Lex();
891
893 SMLoc SectionLoc = getLexer().getLoc();
894 if (getParser().parseIdentifier(Section))
895 return TokError("expected section name after comma in '.zerofill' "
896 "directive");
897
898 // If this is the end of the line all that was wanted was to create the
899 // the section but with no symbol.
900 if (getLexer().is(AsmToken::EndOfStatement)) {
901 // Create the zerofill section but no symbol
902 getStreamer().emitZerofill(
903 getContext().getMachOSection(Segment, Section, MachO::S_ZEROFILL, 0,
905 /*Symbol=*/nullptr, /*Size=*/0, Align(1), SectionLoc);
906 return false;
907 }
908
909 if (getLexer().isNot(AsmToken::Comma))
910 return TokError("unexpected token in directive");
911 Lex();
912
913 SMLoc IDLoc = getLexer().getLoc();
914 StringRef IDStr;
915 if (getParser().parseIdentifier(IDStr))
916 return TokError("expected identifier in directive");
917
918 // handle the identifier as the key symbol.
919 MCSymbol *Sym = getContext().getOrCreateSymbol(IDStr);
920
921 if (getLexer().isNot(AsmToken::Comma))
922 return TokError("unexpected token in directive");
923 Lex();
924
925 int64_t Size;
926 SMLoc SizeLoc = getLexer().getLoc();
927 if (getParser().parseAbsoluteExpression(Size))
928 return true;
929
930 int64_t Pow2Alignment = 0;
931 SMLoc Pow2AlignmentLoc;
932 if (getLexer().is(AsmToken::Comma)) {
933 Lex();
934 Pow2AlignmentLoc = getLexer().getLoc();
935 if (getParser().parseAbsoluteExpression(Pow2Alignment))
936 return true;
937 }
938
939 if (getLexer().isNot(AsmToken::EndOfStatement))
940 return TokError("unexpected token in '.zerofill' directive");
941
942 Lex();
943
944 if (Size < 0)
945 return Error(SizeLoc, "invalid '.zerofill' directive size, can't be less "
946 "than zero");
947
948 // NOTE: The alignment in the directive is a power of 2 value, the assembler
949 // may internally end up wanting an alignment in bytes.
950 // FIXME: Diagnose overflow.
951 if (Pow2Alignment < 0)
952 return Error(Pow2AlignmentLoc, "invalid '.zerofill' directive alignment, "
953 "can't be less than zero");
954
955 if (!Sym->isUndefined())
956 return Error(IDLoc, "invalid symbol redefinition");
957
958 // Create the zerofill Symbol with Size and Pow2Alignment
959 //
960 // FIXME: Arch specific.
961 getStreamer().emitZerofill(
962 getContext().getMachOSection(Segment, Section, MachO::S_ZEROFILL, 0,
964 Sym, Size, Align(1ULL << Pow2Alignment), SectionLoc);
965
966 return false;
967}
968
969/// ParseDirectiveDataRegion
970/// ::= .data_region [ ( jt8 | jt16 | jt32 ) ]
971bool DarwinAsmParser::parseDirectiveDataRegion(StringRef, SMLoc) {
972 if (getLexer().is(AsmToken::EndOfStatement)) {
973 Lex();
974 getStreamer().emitDataRegion(MCDR_DataRegion);
975 return false;
976 }
977 StringRef RegionType;
978 SMLoc Loc = getParser().getTok().getLoc();
979 if (getParser().parseIdentifier(RegionType))
980 return TokError("expected region type after '.data_region' directive");
981 int Kind = StringSwitch<int>(RegionType)
982 .Case("jt8", MCDR_DataRegionJT8)
983 .Case("jt16", MCDR_DataRegionJT16)
984 .Case("jt32", MCDR_DataRegionJT32)
985 .Default(-1);
986 if (Kind == -1)
987 return Error(Loc, "unknown region type in '.data_region' directive");
988 Lex();
989
990 getStreamer().emitDataRegion((MCDataRegionType)Kind);
991 return false;
992}
993
994/// ParseDirectiveDataRegionEnd
995/// ::= .end_data_region
996bool DarwinAsmParser::parseDirectiveDataRegionEnd(StringRef, SMLoc) {
997 if (getLexer().isNot(AsmToken::EndOfStatement))
998 return TokError("unexpected token in '.end_data_region' directive");
999
1000 Lex();
1001 getStreamer().emitDataRegion(MCDR_DataRegionEnd);
1002 return false;
1003}
1004
1005static bool isSDKVersionToken(const AsmToken &Tok) {
1006 return Tok.is(AsmToken::Identifier) && Tok.getIdentifier() == "sdk_version";
1007}
1008
1009/// parseMajorMinorVersionComponent ::= major, minor
1010bool DarwinAsmParser::parseMajorMinorVersionComponent(unsigned *Major,
1011 unsigned *Minor,
1012 const char *VersionName) {
1013 // Get the major version number.
1014 if (getLexer().isNot(AsmToken::Integer))
1015 return TokError(Twine("invalid ") + VersionName +
1016 " major version number, integer expected");
1017 int64_t MajorVal = getLexer().getTok().getIntVal();
1018 if (MajorVal > 65535 || MajorVal <= 0)
1019 return TokError(Twine("invalid ") + VersionName + " major version number");
1020 *Major = (unsigned)MajorVal;
1021 Lex();
1022 if (getLexer().isNot(AsmToken::Comma))
1023 return TokError(Twine(VersionName) +
1024 " minor version number required, comma expected");
1025 Lex();
1026 // Get the minor version number.
1027 if (getLexer().isNot(AsmToken::Integer))
1028 return TokError(Twine("invalid ") + VersionName +
1029 " minor version number, integer expected");
1030 int64_t MinorVal = getLexer().getTok().getIntVal();
1031 if (MinorVal > 255 || MinorVal < 0)
1032 return TokError(Twine("invalid ") + VersionName + " minor version number");
1033 *Minor = MinorVal;
1034 Lex();
1035 return false;
1036}
1037
1038/// parseOptionalTrailingVersionComponent ::= , version_number
1039bool DarwinAsmParser::parseOptionalTrailingVersionComponent(
1040 unsigned *Component, const char *ComponentName) {
1041 assert(getLexer().is(AsmToken::Comma) && "comma expected");
1042 Lex();
1043 if (getLexer().isNot(AsmToken::Integer))
1044 return TokError(Twine("invalid ") + ComponentName +
1045 " version number, integer expected");
1046 int64_t Val = getLexer().getTok().getIntVal();
1047 if (Val > 255 || Val < 0)
1048 return TokError(Twine("invalid ") + ComponentName + " version number");
1049 *Component = Val;
1050 Lex();
1051 return false;
1052}
1053
1054/// parseVersion ::= parseMajorMinorVersionComponent
1055/// parseOptionalTrailingVersionComponent
1056bool DarwinAsmParser::parseVersion(unsigned *Major, unsigned *Minor,
1057 unsigned *Update) {
1058 if (parseMajorMinorVersionComponent(Major, Minor, "OS"))
1059 return true;
1060
1061 // Get the update level, if specified
1062 *Update = 0;
1063 if (getLexer().is(AsmToken::EndOfStatement) ||
1064 isSDKVersionToken(getLexer().getTok()))
1065 return false;
1066 if (getLexer().isNot(AsmToken::Comma))
1067 return TokError("invalid OS update specifier, comma expected");
1068 if (parseOptionalTrailingVersionComponent(Update, "OS update"))
1069 return true;
1070 return false;
1071}
1072
1073bool DarwinAsmParser::parseSDKVersion(VersionTuple &SDKVersion) {
1074 assert(isSDKVersionToken(getLexer().getTok()) && "expected sdk_version");
1075 Lex();
1076 unsigned Major, Minor;
1077 if (parseMajorMinorVersionComponent(&Major, &Minor, "SDK"))
1078 return true;
1079 SDKVersion = VersionTuple(Major, Minor);
1080
1081 // Get the subminor version, if specified.
1082 if (getLexer().is(AsmToken::Comma)) {
1083 unsigned Subminor;
1084 if (parseOptionalTrailingVersionComponent(&Subminor, "SDK subminor"))
1085 return true;
1086 SDKVersion = VersionTuple(Major, Minor, Subminor);
1087 }
1088 return false;
1089}
1090
1091void DarwinAsmParser::checkVersion(StringRef Directive, StringRef Arg,
1092 SMLoc Loc, Triple::OSType ExpectedOS) {
1093 const Triple &Target = getContext().getTargetTriple();
1094 if (Target.getOS() != ExpectedOS)
1095 Warning(Loc, Twine(Directive) +
1096 (Arg.empty() ? Twine() : Twine(' ') + Arg) +
1097 " used while targeting " + Target.getOSName());
1098
1099 if (LastVersionDirective.isValid()) {
1100 Warning(Loc, "overriding previous version directive");
1101 Note(LastVersionDirective, "previous definition is here");
1102 }
1103 LastVersionDirective = Loc;
1104}
1105
1107 switch (Type) {
1109 case MCVM_TvOSVersionMin: return Triple::TvOS;
1110 case MCVM_IOSVersionMin: return Triple::IOS;
1112 }
1113 llvm_unreachable("Invalid mc version min type");
1114}
1115
1116/// parseVersionMin
1117/// ::= .ios_version_min parseVersion parseSDKVersion
1118/// | .macosx_version_min parseVersion parseSDKVersion
1119/// | .tvos_version_min parseVersion parseSDKVersion
1120/// | .watchos_version_min parseVersion parseSDKVersion
1121bool DarwinAsmParser::parseVersionMin(StringRef Directive, SMLoc Loc,
1123 unsigned Major;
1124 unsigned Minor;
1125 unsigned Update;
1126 if (parseVersion(&Major, &Minor, &Update))
1127 return true;
1128
1129 VersionTuple SDKVersion;
1130 if (isSDKVersionToken(getLexer().getTok()) && parseSDKVersion(SDKVersion))
1131 return true;
1132
1133 if (parseToken(AsmToken::EndOfStatement))
1134 return addErrorSuffix(Twine(" in '") + Directive + "' directive");
1135
1137 checkVersion(Directive, StringRef(), Loc, ExpectedOS);
1138 getStreamer().emitVersionMin(Type, Major, Minor, Update, SDKVersion);
1139 return false;
1140}
1141
1143 switch (Type) {
1144 case MachO::PLATFORM_UNKNOWN: /* silence warning */
1145 break;
1147 case MachO::PLATFORM_IOS: return Triple::IOS;
1150 case MachO::PLATFORM_BRIDGEOS: /* silence warning */ break;
1152 return Triple::DriverKit;
1154 case MachO::PLATFORM_IOSSIMULATOR: /* silence warning */ break;
1155 case MachO::PLATFORM_TVOSSIMULATOR: /* silence warning */ break;
1156 case MachO::PLATFORM_WATCHOSSIMULATOR: /* silence warning */ break;
1157 }
1158 llvm_unreachable("Invalid mach-o platform type");
1159}
1160
1161/// parseBuildVersion
1162/// ::= .build_version (macos|ios|tvos|watchos), parseVersion parseSDKVersion
1163bool DarwinAsmParser::parseBuildVersion(StringRef Directive, SMLoc Loc) {
1164 StringRef PlatformName;
1165 SMLoc PlatformLoc = getTok().getLoc();
1166 if (getParser().parseIdentifier(PlatformName))
1167 return TokError("platform name expected");
1168
1169 unsigned Platform = StringSwitch<unsigned>(PlatformName)
1170 .Case("macos", MachO::PLATFORM_MACOS)
1171 .Case("ios", MachO::PLATFORM_IOS)
1172 .Case("tvos", MachO::PLATFORM_TVOS)
1173 .Case("watchos", MachO::PLATFORM_WATCHOS)
1174 .Case("macCatalyst", MachO::PLATFORM_MACCATALYST)
1175 .Case("driverkit", MachO::PLATFORM_DRIVERKIT)
1176 .Default(0);
1177 if (Platform == 0)
1178 return Error(PlatformLoc, "unknown platform name");
1179
1180 if (getLexer().isNot(AsmToken::Comma))
1181 return TokError("version number required, comma expected");
1182 Lex();
1183
1184 unsigned Major;
1185 unsigned Minor;
1186 unsigned Update;
1187 if (parseVersion(&Major, &Minor, &Update))
1188 return true;
1189
1190 VersionTuple SDKVersion;
1191 if (isSDKVersionToken(getLexer().getTok()) && parseSDKVersion(SDKVersion))
1192 return true;
1193
1194 if (parseToken(AsmToken::EndOfStatement))
1195 return addErrorSuffix(" in '.build_version' directive");
1196
1197 Triple::OSType ExpectedOS
1199 checkVersion(Directive, PlatformName, Loc, ExpectedOS);
1200 getStreamer().emitBuildVersion(Platform, Major, Minor, Update, SDKVersion);
1201 return false;
1202}
1203
1204/// parseDirectiveCGProfile
1205/// ::= .cg_profile from, to, count
1206bool DarwinAsmParser::parseDirectiveCGProfile(StringRef S, SMLoc Loc) {
1208}
1209
1210namespace llvm {
1211
1213 return new DarwinAsmParser;
1214}
1215
1216} // end llvm namespace
This header is deprecated in favour of llvm/TargetParser/Triple.h.
static bool isNot(const MachineRegisterInfo &MRI, const MachineInstr &MI)
amdgpu Simplify well known AMD library false FunctionCallee Value * Arg
static GCRegistry::Add< OcamlGC > B("ocaml", "ocaml 3.10-compatible GC")
static GCRegistry::Add< CoreCLRGC > E("coreclr", "CoreCLR-compatible GC")
static Version parseVersion(StringRef Name)
static bool isSDKVersionToken(const AsmToken &Tok)
static Triple::OSType getOSTypeFromMCVM(MCVersionMinType Type)
static Triple::OSType getOSTypeFromPlatform(MachO::PlatformType Type)
std::string Name
uint64_t Size
assert(ImpDefSCC.getReg()==AMDGPU::SCC &&ImpDefSCC.isDef())
This file defines the SmallVector class.
This file implements the StringSwitch template, which mimics a switch() statement whose cases are str...
Target independent representation for an assembler token.
Definition: MCAsmMacro.h:21
bool is(TokenKind K) const
Definition: MCAsmMacro.h:82
StringRef getIdentifier() const
Get the identifier string for the current token, which should be an identifier or a string.
Definition: MCAsmMacro.h:99
Lightweight error class with error context and mandatory checking.
Definition: Error.h:156
Generic interface for extending the MCAsmParser, which is implemented by target and object file assem...
virtual void Initialize(MCAsmParser &Parser)
Initialize the extension for parsing using the given Parser.
bool ParseDirectiveCGProfile(StringRef, SMLoc)
ParseDirectiveCGProfile ::= .cg_profile identifier, identifier, <number>
Generic assembler parser interface, for use by target specific assembly parsers.
Definition: MCAsmParser.h:123
virtual void eatToEndOfStatement()=0
Skip to the end of the current statement, for error recovery.
std::pair< MCAsmParserExtension *, DirectiveHandler > ExtensionDirectiveHandler
Definition: MCAsmParser.h:127
virtual void addDirectiveHandler(StringRef Directive, ExtensionDirectiveHandler Handler)=0
Base class for the full range of assembler expressions which are needed for parsing.
Definition: MCExpr.h:35
This represents a section on a Mach-O system (used by Mac OS X).
static Error ParseSectionSpecifier(StringRef Spec, StringRef &Segment, StringRef &Section, unsigned &TAA, bool &TAAParsed, unsigned &StubSize)
Parse the section specifier indicated by "Spec".
MachO::SectionType getType() const
MCSymbol - Instances of this class represent a symbol name in the MC file, and MCSymbols are created ...
Definition: MCSymbol.h:41
bool isDefined() const
isDefined - Check if this symbol is defined (i.e., it has an address).
Definition: MCSymbol.h:248
bool isUndefined(bool SetUsed=true) const
isUndefined - Check if this symbol undefined (i.e., implicitly defined).
Definition: MCSymbol.h:257
bool isTemporary() const
isTemporary - Check if this is an assembler temporary symbol.
Definition: MCSymbol.h:220
Represents a location in source code.
Definition: SMLoc.h:23
static SMLoc getFromPointer(const char *Ptr)
Definition: SMLoc.h:36
const char * getPointer() const
Definition: SMLoc.h:34
Represents a range in source code.
Definition: SMLoc.h:48
static SectionKind getText()
Definition: SectionKind.h:190
static SectionKind getData()
Definition: SectionKind.h:213
static SectionKind getBSS()
Definition: SectionKind.h:209
static SectionKind getThreadBSS()
Definition: SectionKind.h:206
This is a 'vector' (really, a variable-sized array), optimized for the case when the array is small.
Definition: SmallVector.h:1200
StringRef - Represent a constant reference to a string, i.e.
Definition: StringRef.h:50
constexpr bool empty() const
empty - Check if the string is empty.
Definition: StringRef.h:134
iterator begin() const
Definition: StringRef.h:111
iterator end() const
Definition: StringRef.h:113
A switch()-like statement whose cases are string literals.
Definition: StringSwitch.h:44
StringSwitch & Case(StringLiteral S, T Value)
Definition: StringSwitch.h:69
R Default(T Value)
Definition: StringSwitch.h:182
Target - Wrapper for Target specific information.
Triple - Helper class for working with autoconf configuration names.
Definition: Triple.h:44
Twine - A lightweight data structure for efficiently representing the concatenation of temporary valu...
Definition: Twine.h:81
The instances of the Type class are immutable: once they are created, they are never changed.
Definition: Type.h:45
LLVM Value Representation.
Definition: Value.h:74
Represents a version number in the form major[.minor[.subminor[.build]]].
Definition: VersionTuple.h:31
A raw_ostream that writes to a file descriptor.
Definition: raw_ostream.h:454
#define llvm_unreachable(msg)
Marks that the current location is not supposed to be reachable.
constexpr char Args[]
Key for Kernel::Metadata::mArgs.
@ S_ATTR_NO_DEAD_STRIP
S_ATTR_NO_DEAD_STRIP - No dead stripping.
Definition: MachO.h:200
@ S_ATTR_PURE_INSTRUCTIONS
S_ATTR_PURE_INSTRUCTIONS - Section contains only true machine instructions.
Definition: MachO.h:192
PlatformType
Definition: MachO.h:497
@ PLATFORM_MACCATALYST
Definition: MachO.h:504
@ PLATFORM_DRIVERKIT
Definition: MachO.h:508
@ PLATFORM_WATCHOS
Definition: MachO.h:502
@ PLATFORM_UNKNOWN
Definition: MachO.h:498
@ PLATFORM_WATCHOSSIMULATOR
Definition: MachO.h:507
@ PLATFORM_IOS
Definition: MachO.h:500
@ PLATFORM_TVOS
Definition: MachO.h:501
@ PLATFORM_TVOSSIMULATOR
Definition: MachO.h:506
@ PLATFORM_BRIDGEOS
Definition: MachO.h:503
@ PLATFORM_MACOS
Definition: MachO.h:499
@ PLATFORM_IOSSIMULATOR
Definition: MachO.h:505
SectionType
These are the section type and attributes fields.
Definition: MachO.h:122
@ S_THREAD_LOCAL_VARIABLE_POINTERS
S_THREAD_LOCAL_VARIABLE_POINTERS - Section with pointers to thread local structures.
Definition: MachO.h:175
@ S_16BYTE_LITERALS
S_16BYTE_LITERALS - Section with only 16 byte literals.
Definition: MachO.h:160
@ S_THREAD_LOCAL_INIT_FUNCTION_POINTERS
S_THREAD_LOCAL_INIT_FUNCTION_POINTERS - Section with thread local variable initialization pointers to...
Definition: MachO.h:178
@ S_THREAD_LOCAL_ZEROFILL
S_THREAD_LOCAL_ZEROFILL - Thread local zerofill section.
Definition: MachO.h:169
@ S_LAZY_SYMBOL_POINTERS
S_LAZY_SYMBOL_POINTERS - Section with lazy symbol pointers.
Definition: MachO.h:141
@ S_MOD_TERM_FUNC_POINTERS
S_MOD_TERM_FUNC_POINTERS - Section with only function pointers for termination.
Definition: MachO.h:150
@ S_MOD_INIT_FUNC_POINTERS
S_MOD_INIT_FUNC_POINTERS - Section with only function pointers for initialization.
Definition: MachO.h:147
@ S_CSTRING_LITERALS
S_CSTRING_LITERALS - Section with literal C strings.
Definition: MachO.h:131
@ S_THREAD_LOCAL_REGULAR
S_THREAD_LOCAL_REGULAR - Thread local data section.
Definition: MachO.h:167
@ S_ZEROFILL
S_ZEROFILL - Zero fill on demand section.
Definition: MachO.h:129
@ S_NON_LAZY_SYMBOL_POINTERS
S_NON_LAZY_SYMBOL_POINTERS - Section with non-lazy symbol pointers.
Definition: MachO.h:139
@ S_4BYTE_LITERALS
S_4BYTE_LITERALS - Section with 4 byte literals.
Definition: MachO.h:133
@ S_LITERAL_POINTERS
S_LITERAL_POINTERS - Section with pointers to literals.
Definition: MachO.h:137
@ S_8BYTE_LITERALS
S_8BYTE_LITERALS - Section with 8 byte literals.
Definition: MachO.h:135
@ S_THREAD_LOCAL_VARIABLES
S_THREAD_LOCAL_VARIABLES - Section with thread local variable structure data.
Definition: MachO.h:172
@ S_SYMBOL_STUBS
S_SYMBOL_STUBS - Section with symbol stubs, byte size of stub in the Reserved2 field.
Definition: MachO.h:144
std::optional< const char * > toString(const std::optional< DWARFFormValue > &V)
Take an optional DWARFFormValue and try to extract a string value from it.
@ OF_TextWithCRLF
The file should be opened in text mode and use a carriage linefeed '\r '.
Definition: FileSystem.h:770
@ OF_Append
The file should be opened in append mode.
Definition: FileSystem.h:773
This is an optimization pass for GlobalISel generic memory operations.
Definition: AddressRanges.h:18
MCDataRegionType
Definition: MCDirectives.h:60
@ MCDR_DataRegionEnd
.end_data_region
Definition: MCDirectives.h:65
@ MCDR_DataRegion
.data_region
Definition: MCDirectives.h:61
@ MCDR_DataRegionJT8
.data_region jt8
Definition: MCDirectives.h:62
@ MCDR_DataRegionJT32
.data_region jt32
Definition: MCDirectives.h:64
@ MCDR_DataRegionJT16
.data_region jt16
Definition: MCDirectives.h:63
MCVersionMinType
Definition: MCDirectives.h:68
@ MCVM_WatchOSVersionMin
.watchos_version_min
Definition: MCDirectives.h:72
@ MCVM_OSXVersionMin
.macosx_version_min
Definition: MCDirectives.h:70
@ MCVM_TvOSVersionMin
.tvos_version_min
Definition: MCDirectives.h:71
@ MCVM_IOSVersionMin
.ios_version_min
Definition: MCDirectives.h:69
@ MCAF_SubsectionsViaSymbols
.subsections_via_symbols (MachO)
Definition: MCDirectives.h:54
std::pair< MCSection *, const MCExpr * > MCSectionSubPair
Definition: MCStreamer.h:66
MCAsmParserExtension * createDarwinAsmParser()
@ MCSA_AltEntry
.alt_entry (MachO)
Definition: MCDirectives.h:41
@ MCSA_IndirectSymbol
.indirect_symbol (MachO)
Definition: MCDirectives.h:35
This struct is a compact representation of a valid (non-zero power of two) alignment.
Definition: Alignment.h:39