1//===-- llvm-libtool-darwin.cpp - a tool for creating libraries -----------===//
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// A utility for creating static and dynamic libraries for Darwin.
10//
11//===----------------------------------------------------------------------===//
12
13#include "DependencyInfo.h"
14#include "llvm/ADT/MapVector.h"
15#include "llvm/BinaryFormat/Magic.h"
16#include "llvm/IR/LLVMContext.h"
17#include "llvm/Object/ArchiveWriter.h"
18#include "llvm/Object/IRObjectFile.h"
19#include "llvm/Object/MachO.h"
20#include "llvm/Object/MachOUniversal.h"
21#include "llvm/Object/MachOUniversalWriter.h"
22#include "llvm/Object/ObjectFile.h"
23#include "llvm/Option/ArgList.h"
24#include "llvm/Option/Option.h"
25#include "llvm/Support/CommandLine.h"
26#include "llvm/Support/LLVMDriver.h"
27#include "llvm/Support/LineIterator.h"
28#include "llvm/Support/TargetSelect.h"
29#include "llvm/Support/VirtualFileSystem.h"
30#include "llvm/Support/WithColor.h"
31#include "llvm/Support/YAMLTraits.h"
32#include "llvm/Support/raw_ostream.h"
33#include "llvm/TextAPI/Architecture.h"
34#include <cstdlib>
35#include <map>
36#include <type_traits>
37
38using namespace llvm;
39using namespace llvm::object;
40using namespace llvm::opt;
41
42// Command-line option boilerplate.
43namespace {
44enum ID {
45 OPT_INVALID = 0, // This is not an option ID.
46#define OPTION(...) LLVM_MAKE_OPT_ID(__VA_ARGS__),
47#include "Opts.inc"
48#undef OPTION
49};
50
51#define OPTTABLE_STR_TABLE_CODE
52#include "Opts.inc"
53#undef OPTTABLE_STR_TABLE_CODE
54
55#define OPTTABLE_PREFIXES_TABLE_CODE
56#include "Opts.inc"
57#undef OPTTABLE_PREFIXES_TABLE_CODE
58
59static constexpr opt::OptTable::Info InfoTable[] = {
60#define OPTION(...) LLVM_CONSTRUCT_OPT_INFO(__VA_ARGS__),
61#include "Opts.inc"
62#undef OPTION
63};
64
65class LibtoolDarwinOptTable : public opt::GenericOptTable {
66public:
67 LibtoolDarwinOptTable()
68 : GenericOptTable(OptionStrTable, OptionPrefixesTable, InfoTable) {}
69};
70} // end anonymous namespace
71
72class NewArchiveMemberList;
73typedef std::map<uint64_t, NewArchiveMemberList> MembersPerArchitectureMap;
74
75static std::string OutputFile;
76static std::vector<std::string> InputFiles;
77static std::optional<std::string> ArchType;
78
79enum class Operation { None, Static };
80static Operation LibraryOperation = Operation::None;
81
82static bool DeterministicOption;
83static bool NonDeterministicOption;
84static std::string FileList;
85static std::vector<std::string> Libraries;
86static std::vector<std::string> LibrarySearchDirs;
87static std::string DependencyInfoPath;
88static bool VersionOption;
89static bool NoWarningForNoSymbols;
90static bool WarningsAsErrors;
91
92static const std::array<std::string, 3> StandardSearchDirs{
93 "/lib",
94 "/usr/lib",
95 "/usr/local/lib",
96};
97
98std::unique_ptr<DependencyInfo> GlobalDependencyInfo;
99
100struct Config {
101 bool Deterministic = true; // Updated by 'D' and 'U' modifiers.
102 uint32_t ArchCPUType;
103 uint32_t ArchCPUSubtype;
104};
105
106static Expected<std::string> searchForFile(const Twine &FileName) {
107 auto FindLib =
108 [FileName](
109 ArrayRef<std::string> SearchDirs) -> std::optional<std::string> {
110 for (StringRef Dir : SearchDirs) {
111 SmallString<128> Path;
112 sys::path::append(path&: Path, a: Dir, b: FileName);
113
114 if (sys::fs::exists(Path))
115 return std::string(Path);
116
117 GlobalDependencyInfo->addMissingInput(Path);
118 }
119 return std::nullopt;
120 };
121
122 std::optional<std::string> Found = FindLib(LibrarySearchDirs);
123 if (!Found)
124 Found = FindLib(StandardSearchDirs);
125 if (Found)
126 return *Found;
127
128 return createStringError(EC: std::errc::invalid_argument,
129 Fmt: "cannot locate file '%s'", Vals: FileName.str().c_str());
130}
131
132static Error processCommandLineLibraries() {
133 for (StringRef BaseName : Libraries) {
134 Expected<std::string> FullPath = searchForFile(
135 FileName: BaseName.ends_with(Suffix: ".o") ? BaseName.str() : "lib" + BaseName + ".a");
136 if (!FullPath)
137 return FullPath.takeError();
138 InputFiles.push_back(x: FullPath.get());
139 }
140
141 return Error::success();
142}
143
144static Error processFileList() {
145 StringRef FileName, DirName;
146 std::tie(args&: FileName, args&: DirName) = StringRef(FileList).rsplit(Separator: ",");
147
148 ErrorOr<std::unique_ptr<MemoryBuffer>> FileOrErr =
149 MemoryBuffer::getFileOrSTDIN(Filename: FileName, /*IsText=*/false,
150 /*RequiresNullTerminator=*/false);
151 if (std::error_code EC = FileOrErr.getError())
152 return createFileError(F: FileName, E: errorCodeToError(EC));
153 const MemoryBuffer &Ref = *FileOrErr.get();
154
155 line_iterator I(Ref, /*SkipBlanks=*/false);
156 if (I.is_at_eof())
157 return createStringError(EC: std::errc::invalid_argument,
158 Fmt: "file list file: '%s' is empty",
159 Vals: FileName.str().c_str());
160 for (; !I.is_at_eof(); ++I) {
161 StringRef Line = *I;
162 if (Line.empty())
163 return createStringError(EC: std::errc::invalid_argument,
164 Fmt: "file list file: '%s': filename cannot be empty",
165 Vals: FileName.str().c_str());
166
167 SmallString<128> Path;
168 if (!DirName.empty())
169 sys::path::append(path&: Path, a: DirName, b: Line);
170 else
171 sys::path::append(path&: Path, a: Line);
172 InputFiles.push_back(x: static_cast<std::string>(Path));
173 }
174 return Error::success();
175}
176
177static Error validateArchitectureName(StringRef ArchitectureName) {
178 if (!MachOObjectFile::isValidArch(ArchFlag: ArchitectureName)) {
179 std::string Buf;
180 raw_string_ostream OS(Buf);
181 for (StringRef Arch : MachOObjectFile::getValidArchs())
182 OS << Arch << " ";
183
184 return createStringError(
185 EC: std::errc::invalid_argument,
186 Fmt: "invalid architecture '%s': valid architecture names are %s",
187 Vals: ArchitectureName.str().c_str(), Vals: Buf.c_str());
188 }
189 return Error::success();
190}
191
192static uint64_t getCPUID(uint32_t CPUType, uint32_t CPUSubtype) {
193 switch (CPUType) {
194 case MachO::CPU_TYPE_ARM:
195 case MachO::CPU_TYPE_ARM64:
196 case MachO::CPU_TYPE_ARM64_32:
197 case MachO::CPU_TYPE_X86_64:
198 // We consider CPUSubtype only for the above 4 CPUTypes to match cctools'
199 // libtool behavior.
200 return static_cast<uint64_t>(CPUType) << 32 | CPUSubtype;
201 default:
202 return CPUType;
203 }
204}
205
206// MembersData is an organized collection of members.
207struct MembersData {
208 // MembersPerArchitectureMap is a mapping from CPU architecture to a list of
209 // members.
210 MembersPerArchitectureMap MembersPerArchitecture;
211 std::vector<std::unique_ptr<MemoryBuffer>> FileBuffers;
212};
213
214// NewArchiveMemberList instances serve as collections of archive members and
215// information about those members.
216class NewArchiveMemberList {
217 std::vector<NewArchiveMember> Members;
218 // This vector contains the file that each NewArchiveMember from Members came
219 // from. Therefore, it has the same size as Members.
220 std::vector<StringRef> Files;
221
222public:
223 // Add a NewArchiveMember and the file it came from to the list.
224 void push_back(NewArchiveMember &&Member, StringRef File) {
225 Members.push_back(x: std::move(Member));
226 Files.push_back(x: File);
227 }
228
229 ArrayRef<NewArchiveMember> getMembers() const { return Members; }
230
231 ArrayRef<StringRef> getFiles() const { return Files; }
232
233 static_assert(
234 std::is_same<decltype(MembersData::MembersPerArchitecture)::mapped_type,
235 NewArchiveMemberList>(),
236 "This test makes sure NewArchiveMemberList is used by MembersData since "
237 "the following asserts test invariants required for MembersData.");
238 static_assert(
239 !std::is_copy_constructible_v<
240 decltype(NewArchiveMemberList::Members)::value_type>,
241 "MembersData::MembersPerArchitecture has a dependency on "
242 "MembersData::FileBuffers so it should not be able to "
243 "be copied on its own without FileBuffers. Unfortunately, "
244 "is_copy_constructible does not detect whether the container (ie vector) "
245 "of a non-copyable type is itself non-copyable so we have to test the "
246 "actual type of the stored data (ie, value_type).");
247 static_assert(
248 !std::is_copy_assignable_v<
249 decltype(NewArchiveMemberList::Members)::value_type>,
250 "MembersData::MembersPerArchitecture has a dependency on "
251 "MembersData::FileBuffers so it should not be able to "
252 "be copied on its own without FileBuffers. Unfortunately, "
253 "is_copy_constructible does not detect whether the container (ie vector) "
254 "of a non-copyable type is itself non-copyable so we have to test the "
255 "actual type of the stored data (ie, value_type).");
256};
257
258// MembersBuilder collects and organizes all members from the files provided by
259// the user.
260class MembersBuilder {
261public:
262 MembersBuilder(LLVMContext &LLVMCtx, const Config &C)
263 : LLVMCtx(LLVMCtx), C(C) {}
264
265 Expected<MembersData> build() {
266 for (StringRef FileName : InputFiles)
267 if (Error E = AddMember(*this, FileName)())
268 return std::move(E);
269
270 std::string Arch = ArchType.value_or(u: "");
271 if (!Arch.empty()) {
272 uint64_t ArchCPUID = getCPUID(CPUType: C.ArchCPUType, CPUSubtype: C.ArchCPUSubtype);
273 if (Data.MembersPerArchitecture.find(x: ArchCPUID) ==
274 Data.MembersPerArchitecture.end())
275 return createStringError(EC: std::errc::invalid_argument,
276 Fmt: "no library created (no object files in input "
277 "files matching -arch_only %s)",
278 Vals: Arch.c_str());
279 }
280 return std::move(Data);
281 }
282
283private:
284 class AddMember {
285 MembersBuilder &Builder;
286 StringRef FileName;
287
288 public:
289 AddMember(MembersBuilder &Builder, StringRef FileName)
290 : Builder(Builder), FileName(FileName) {}
291
292 Error operator()() {
293 Expected<NewArchiveMember> NewMemberOrErr =
294 NewArchiveMember::getFile(FileName, Deterministic: Builder.C.Deterministic);
295 if (!NewMemberOrErr)
296 return createFileError(F: FileName, E: NewMemberOrErr.takeError());
297 auto &NewMember = *NewMemberOrErr;
298
299 // For regular archives, use the basename of the object path for the
300 // member name.
301 NewMember.MemberName = sys::path::filename(path: NewMember.MemberName);
302 file_magic Magic = identify_magic(magic: NewMember.Buf->getBuffer());
303
304 // Flatten archives.
305 if (Magic == file_magic::archive)
306 return addArchiveMembers(NewMember: std::move(NewMember));
307
308 // Flatten universal files.
309 if (Magic == file_magic::macho_universal_binary)
310 return addUniversalMembers(NewMember: std::move(NewMember));
311
312 // Bitcode files.
313 if (Magic == file_magic::bitcode)
314 return verifyAndAddIRObject(Member: std::move(NewMember));
315
316 return verifyAndAddMachOObject(Member: std::move(NewMember));
317 }
318
319 private:
320 // Check that a file's architecture [FileCPUType, FileCPUSubtype]
321 // matches the architecture specified under -arch_only flag.
322 bool acceptFileArch(uint32_t FileCPUType, uint32_t FileCPUSubtype) {
323 if (Builder.C.ArchCPUType != FileCPUType)
324 return false;
325
326 switch (Builder.C.ArchCPUType) {
327 case MachO::CPU_TYPE_ARM:
328 case MachO::CPU_TYPE_ARM64_32:
329 case MachO::CPU_TYPE_X86_64:
330 return Builder.C.ArchCPUSubtype == FileCPUSubtype;
331
332 case MachO::CPU_TYPE_ARM64:
333 if (Builder.C.ArchCPUSubtype == MachO::CPU_SUBTYPE_ARM64_ALL)
334 return FileCPUSubtype == MachO::CPU_SUBTYPE_ARM64_ALL ||
335 FileCPUSubtype == MachO::CPU_SUBTYPE_ARM64_V8;
336 else
337 return Builder.C.ArchCPUSubtype == FileCPUSubtype;
338
339 default:
340 return true;
341 }
342 }
343
344 Error verifyAndAddMachOObject(NewArchiveMember Member) {
345 auto MBRef = Member.Buf->getMemBufferRef();
346 Expected<std::unique_ptr<object::ObjectFile>> ObjOrErr =
347 object::ObjectFile::createObjectFile(Object: MBRef);
348
349 // Throw error if not a valid object file.
350 if (!ObjOrErr)
351 return createFileError(F: Member.MemberName, E: ObjOrErr.takeError());
352
353 // Throw error if not in Mach-O format.
354 if (!isa<object::MachOObjectFile>(Val: **ObjOrErr))
355 return createStringError(EC: std::errc::invalid_argument,
356 Fmt: "'%s': format not supported",
357 Vals: Member.MemberName.data());
358
359 auto *O = cast<MachOObjectFile>(Val: ObjOrErr->get());
360 uint32_t FileCPUType, FileCPUSubtype;
361 std::tie(args&: FileCPUType, args&: FileCPUSubtype) = MachO::getCPUTypeFromArchitecture(
362 Arch: MachO::getArchitectureFromName(Name: O->getArchTriple().getArchName()));
363
364 // If -arch_only is specified then skip this file if it doesn't match
365 // the architecture specified.
366 if (ArchType && !acceptFileArch(FileCPUType, FileCPUSubtype)) {
367 return Error::success();
368 }
369
370 if (!NoWarningForNoSymbols && O->symbols().empty()) {
371 Error E = createFileError(
372 F: Member.MemberName,
373 E: createStringError(EC: std::errc::invalid_argument,
374 Fmt: "has no symbols for architecture %s",
375 Vals: O->getArchTriple().getArchName().str().c_str()));
376
377 if (WarningsAsErrors)
378 return E;
379 WithColor::defaultWarningHandler(Warning: std::move(E));
380 }
381
382 uint64_t FileCPUID = getCPUID(CPUType: FileCPUType, CPUSubtype: FileCPUSubtype);
383 Builder.Data.MembersPerArchitecture[FileCPUID].push_back(
384 Member: std::move(Member), File: FileName);
385 return Error::success();
386 }
387
388 Error verifyAndAddIRObject(NewArchiveMember Member) {
389 auto MBRef = Member.Buf->getMemBufferRef();
390 Expected<std::unique_ptr<object::IRObjectFile>> IROrErr =
391 object::IRObjectFile::create(Object: MBRef, Context&: Builder.LLVMCtx);
392
393 // Throw error if not a valid IR object file.
394 if (!IROrErr)
395 return createFileError(F: Member.MemberName, E: IROrErr.takeError());
396
397 Triple TT = Triple(IROrErr->get()->getTargetTriple());
398
399 Expected<uint32_t> FileCPUTypeOrErr = MachO::getCPUType(T: TT);
400 if (!FileCPUTypeOrErr)
401 return FileCPUTypeOrErr.takeError();
402
403 Expected<uint32_t> FileCPUSubTypeOrErr = MachO::getCPUSubType(T: TT);
404 if (!FileCPUSubTypeOrErr)
405 return FileCPUSubTypeOrErr.takeError();
406
407 // If -arch_only is specified then skip this file if it doesn't match
408 // the architecture specified.
409 if (ArchType &&
410 !acceptFileArch(FileCPUType: *FileCPUTypeOrErr, FileCPUSubtype: *FileCPUSubTypeOrErr)) {
411 return Error::success();
412 }
413
414 uint64_t FileCPUID = getCPUID(CPUType: *FileCPUTypeOrErr, CPUSubtype: *FileCPUSubTypeOrErr);
415 Builder.Data.MembersPerArchitecture[FileCPUID].push_back(
416 Member: std::move(Member), File: FileName);
417 return Error::success();
418 }
419
420 Error addChildMember(const object::Archive::Child &M) {
421 Expected<NewArchiveMember> NewMemberOrErr =
422 NewArchiveMember::getOldMember(OldMember: M, Deterministic: Builder.C.Deterministic);
423 if (!NewMemberOrErr)
424 return NewMemberOrErr.takeError();
425 auto &NewMember = *NewMemberOrErr;
426
427 file_magic Magic = identify_magic(magic: NewMember.Buf->getBuffer());
428
429 if (Magic == file_magic::bitcode)
430 return verifyAndAddIRObject(Member: std::move(NewMember));
431
432 return verifyAndAddMachOObject(Member: std::move(NewMember));
433 }
434
435 Error processArchive(object::Archive &Lib) {
436 Error Err = Error::success();
437 for (const object::Archive::Child &Child : Lib.children(Err))
438 if (Error E = addChildMember(M: Child))
439 return createFileError(F: FileName, E: std::move(E));
440 if (Err)
441 return createFileError(F: FileName, E: std::move(Err));
442
443 return Error::success();
444 }
445
446 Error addArchiveMembers(NewArchiveMember NewMember) {
447 Expected<std::unique_ptr<Archive>> LibOrErr =
448 object::Archive::create(Source: NewMember.Buf->getMemBufferRef());
449 if (!LibOrErr)
450 return createFileError(F: FileName, E: LibOrErr.takeError());
451
452 if (Error E = processArchive(Lib&: **LibOrErr))
453 return E;
454
455 // Update vector FileBuffers with the MemoryBuffers to transfer
456 // ownership.
457 Builder.Data.FileBuffers.push_back(x: std::move(NewMember.Buf));
458 return Error::success();
459 }
460
461 Error addUniversalMembers(NewArchiveMember NewMember) {
462 Expected<std::unique_ptr<MachOUniversalBinary>> BinaryOrErr =
463 MachOUniversalBinary::create(Source: NewMember.Buf->getMemBufferRef());
464 if (!BinaryOrErr)
465 return createFileError(F: FileName, E: BinaryOrErr.takeError());
466
467 auto *UO = BinaryOrErr->get();
468 for (const MachOUniversalBinary::ObjectForArch &O : UO->objects()) {
469
470 Expected<std::unique_ptr<MachOObjectFile>> MachOObjOrErr =
471 O.getAsObjectFile();
472 if (MachOObjOrErr) {
473 NewArchiveMember NewMember =
474 NewArchiveMember(MachOObjOrErr->get()->getMemoryBufferRef());
475 NewMember.MemberName = sys::path::filename(path: NewMember.MemberName);
476
477 if (Error E = verifyAndAddMachOObject(Member: std::move(NewMember)))
478 return E;
479 continue;
480 }
481
482 Expected<std::unique_ptr<IRObjectFile>> IRObjectOrError =
483 O.getAsIRObject(Ctx&: Builder.LLVMCtx);
484 if (IRObjectOrError) {
485 // A universal file member can be a MachOObjectFile, an IRObject or an
486 // Archive. In case we can successfully cast the member as an
487 // IRObject, it is safe to throw away the error generated due to
488 // casting the object as a MachOObjectFile.
489 consumeError(Err: MachOObjOrErr.takeError());
490
491 NewArchiveMember NewMember =
492 NewArchiveMember(IRObjectOrError->get()->getMemoryBufferRef());
493 NewMember.MemberName = sys::path::filename(path: NewMember.MemberName);
494
495 if (Error E = verifyAndAddIRObject(Member: std::move(NewMember)))
496 return E;
497 continue;
498 }
499
500 Expected<std::unique_ptr<Archive>> ArchiveOrError = O.getAsArchive();
501 if (ArchiveOrError) {
502 // A universal file member can be a MachOObjectFile, an IRObject or an
503 // Archive. In case we can successfully cast the member as an Archive,
504 // it is safe to throw away the error generated due to casting the
505 // object as a MachOObjectFile.
506 consumeError(Err: MachOObjOrErr.takeError());
507 consumeError(Err: IRObjectOrError.takeError());
508
509 if (Error E = processArchive(Lib&: **ArchiveOrError))
510 return E;
511 continue;
512 }
513
514 Error CombinedError = joinErrors(
515 E1: ArchiveOrError.takeError(),
516 E2: joinErrors(E1: IRObjectOrError.takeError(), E2: MachOObjOrErr.takeError()));
517 return createFileError(F: FileName, E: std::move(CombinedError));
518 }
519
520 // Update vector FileBuffers with the MemoryBuffers to transfer
521 // ownership.
522 Builder.Data.FileBuffers.push_back(x: std::move(NewMember.Buf));
523 return Error::success();
524 }
525 };
526
527 MembersData Data;
528 LLVMContext &LLVMCtx;
529 const Config &C;
530};
531
532static Expected<SmallVector<Slice, 2>>
533buildSlices(LLVMContext &LLVMCtx,
534 ArrayRef<OwningBinary<Archive>> OutputBinaries) {
535 SmallVector<Slice, 2> Slices;
536
537 for (const auto &OB : OutputBinaries) {
538 const Archive &A = *OB.getBinary();
539 Expected<Slice> ArchiveSlice = Slice::create(A, LLVMCtx: &LLVMCtx);
540 if (!ArchiveSlice)
541 return ArchiveSlice.takeError();
542 Slices.push_back(Elt: *ArchiveSlice);
543 }
544 return Slices;
545}
546
547static Error
548checkForDuplicates(const MembersPerArchitectureMap &MembersPerArch) {
549 for (const auto &M : MembersPerArch) {
550 ArrayRef<NewArchiveMember> Members = M.second.getMembers();
551 ArrayRef<StringRef> Files = M.second.getFiles();
552 MapVector<StringRef, SmallVector<StringRef, 1>> MembersToFiles;
553 for (auto Iterators = std::make_pair(x: Members.begin(), y: Files.begin());
554 Iterators.first != Members.end();
555 ++Iterators.first, ++Iterators.second) {
556 assert(Iterators.second != Files.end() &&
557 "Files should be the same size as Members.");
558 MembersToFiles[Iterators.first->MemberName].push_back(Elt: *Iterators.second);
559 }
560
561 std::string ErrorData;
562 raw_string_ostream ErrorStream(ErrorData);
563 for (const auto &[Key, Value] : MembersToFiles) {
564 if (Value.size() > 1) {
565 ErrorStream << "file '" << Key << "' was specified multiple times.\n";
566
567 for (StringRef OriginalFile : Value)
568 ErrorStream << "in: " << OriginalFile.str() << '\n';
569
570 ErrorStream << '\n';
571 }
572 }
573
574 if (ErrorData.size() > 0)
575 return createStringError(EC: std::errc::invalid_argument, Fmt: ErrorData.c_str());
576 }
577 return Error::success();
578}
579
580static Error createStaticLibrary(LLVMContext &LLVMCtx, const Config &C) {
581 MembersBuilder Builder(LLVMCtx, C);
582 auto DataOrError = Builder.build();
583 if (auto Error = DataOrError.takeError())
584 return Error;
585
586 const auto &NewMembers = DataOrError->MembersPerArchitecture;
587
588 if (Error E = checkForDuplicates(MembersPerArch: NewMembers)) {
589 if (WarningsAsErrors)
590 return E;
591 WithColor::defaultWarningHandler(Warning: std::move(E));
592 }
593
594 if (NewMembers.size() == 1)
595 return writeArchive(ArcName: OutputFile, NewMembers: NewMembers.begin()->second.getMembers(),
596 WriteSymtab: SymtabWritingMode::NormalSymtab,
597 /*Kind=*/object::Archive::K_DARWIN, Deterministic: C.Deterministic,
598 /*Thin=*/false);
599
600 SmallVector<OwningBinary<Archive>, 2> OutputBinaries;
601 for (const std::pair<const uint64_t, NewArchiveMemberList> &M : NewMembers) {
602 Expected<std::unique_ptr<MemoryBuffer>> OutputBufferOrErr =
603 writeArchiveToBuffer(
604 NewMembers: M.second.getMembers(), WriteSymtab: SymtabWritingMode::NormalSymtab,
605 /*Kind=*/object::Archive::K_DARWIN, Deterministic: C.Deterministic,
606 /*Thin=*/false);
607 if (!OutputBufferOrErr)
608 return OutputBufferOrErr.takeError();
609 std::unique_ptr<MemoryBuffer> &OutputBuffer = OutputBufferOrErr.get();
610
611 Expected<std::unique_ptr<Archive>> ArchiveOrError =
612 Archive::create(Source: OutputBuffer->getMemBufferRef());
613 if (!ArchiveOrError)
614 return ArchiveOrError.takeError();
615 std::unique_ptr<Archive> &A = ArchiveOrError.get();
616
617 OutputBinaries.push_back(
618 Elt: OwningBinary<Archive>(std::move(A), std::move(OutputBuffer)));
619 }
620
621 Expected<SmallVector<Slice, 2>> Slices = buildSlices(LLVMCtx, OutputBinaries);
622 if (!Slices)
623 return Slices.takeError();
624
625 llvm::stable_sort(Range&: *Slices);
626 return writeUniversalBinary(Slices: *Slices, OutputFileName: OutputFile);
627}
628
629static void parseRawArgs(int Argc, char **Argv) {
630 LibtoolDarwinOptTable Tbl;
631 llvm::BumpPtrAllocator A;
632 llvm::StringSaver Saver{A};
633 opt::InputArgList Args =
634 Tbl.parseArgs(Argc, Argv, Unknown: OPT_UNKNOWN, Saver, ErrorFn: [&](StringRef Msg) {
635 llvm::errs() << Msg << '\n';
636 std::exit(status: 1);
637 });
638
639 if (Args.hasArg(Ids: OPT_help)) {
640 Tbl.printHelp(OS&: llvm::outs(), Usage: "llvm-libtool-darwin [options] <input files>",
641 Title: "llvm-libtool-darwin");
642 std::exit(status: 0);
643 }
644
645 InputFiles = Args.getAllArgValues(Id: OPT_INPUT);
646 Libraries = Args.getAllArgValues(Id: OPT_libraries);
647 LibrarySearchDirs = Args.getAllArgValues(Id: OPT_librarySearchDirs);
648
649 if (const opt::Arg *A = Args.getLastArg(Ids: OPT_outputFile))
650 OutputFile = A->getValue();
651
652 if (const opt::Arg *A = Args.getLastArg(Ids: OPT_archType))
653 ArchType = std::make_optional(t: A->getValue());
654
655 if (const opt::Arg *A = Args.getLastArg(Ids: OPT_fileList))
656 FileList = A->getValue();
657
658 if (const opt::Arg *A = Args.getLastArg(Ids: OPT_dependencyInfoPath))
659 DependencyInfoPath = A->getValue();
660
661 LibraryOperation =
662 Args.hasArg(Ids: OPT_static) ? Operation::Static : Operation::None;
663 DeterministicOption = Args.hasArg(Ids: OPT_deterministicOption);
664 NonDeterministicOption = Args.hasArg(Ids: OPT_nonDeterministicOption);
665 VersionOption = Args.hasArg(Ids: OPT_version);
666 NoWarningForNoSymbols = Args.hasArg(Ids: OPT_noWarningForNoSymbols);
667 WarningsAsErrors = Args.hasArg(Ids: OPT_warningsAsErrors);
668}
669
670static Expected<Config> parseCommandLine(int Argc, char **Argv) {
671 Config C;
672 parseRawArgs(Argc, Argv);
673
674 if (LibraryOperation == Operation::None) {
675 if (!VersionOption) {
676 return createStringError(EC: std::errc::invalid_argument,
677 Fmt: "-static option: must be specified");
678 }
679 return C;
680 }
681
682 GlobalDependencyInfo =
683 DependencyInfoPath.empty()
684 ? std::make_unique<DummyDependencyInfo>()
685 : std::make_unique<DependencyInfo>(args&: DependencyInfoPath);
686
687 if (OutputFile.empty()) {
688 return createStringError(EC: std::errc::invalid_argument,
689 Fmt: "-o option: must be specified");
690 }
691
692 if (DeterministicOption && NonDeterministicOption)
693 return createStringError(EC: std::errc::invalid_argument,
694 Fmt: "cannot specify both -D and -U flags");
695 else if (NonDeterministicOption)
696 C.Deterministic = false;
697
698 if (!Libraries.empty())
699 if (Error E = processCommandLineLibraries())
700 return std::move(E);
701
702 if (!FileList.empty())
703 if (Error E = processFileList())
704 return std::move(E);
705
706 if (InputFiles.empty())
707 return createStringError(EC: std::errc::invalid_argument,
708 Fmt: "no input files specified");
709
710 if (ArchType) {
711 if (Error E = validateArchitectureName(ArchitectureName: ArchType.value()))
712 return std::move(E);
713
714 std::tie(args&: C.ArchCPUType, args&: C.ArchCPUSubtype) =
715 MachO::getCPUTypeFromArchitecture(
716 Arch: MachO::getArchitectureFromName(Name: ArchType.value()));
717 }
718
719 GlobalDependencyInfo->write(Version: "llvm-libtool-darwin " LLVM_VERSION_STRING,
720 Inputs: InputFiles, Output: OutputFile);
721
722 return C;
723}
724
725int llvm_libtool_darwin_main(int Argc, char **Argv, const llvm::ToolContext &) {
726 Expected<Config> ConfigOrErr = parseCommandLine(Argc, Argv);
727 if (!ConfigOrErr) {
728 WithColor::defaultErrorHandler(Err: ConfigOrErr.takeError());
729 return EXIT_FAILURE;
730 }
731
732 if (VersionOption)
733 cl::PrintVersionMessage();
734
735 llvm::InitializeAllTargetInfos();
736 llvm::InitializeAllTargetMCs();
737 llvm::InitializeAllAsmParsers();
738
739 LLVMContext LLVMCtx;
740 Config C = *ConfigOrErr;
741 switch (LibraryOperation) {
742 case Operation::None:
743 break;
744 case Operation::Static:
745 if (Error E = createStaticLibrary(LLVMCtx, C)) {
746 WithColor::defaultErrorHandler(Err: std::move(E));
747 return EXIT_FAILURE;
748 }
749 break;
750 }
751 return EXIT_SUCCESS;
752}
753