LLVM 19.0.0git
MachOObjcopy.cpp
Go to the documentation of this file.
1//===- MachOObjcopy.cpp -----------------------------------------*- C++ -*-===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8
10#include "Archive.h"
11#include "MachOReader.h"
12#include "MachOWriter.h"
13#include "llvm/ADT/DenseSet.h"
21#include "llvm/Support/Errc.h"
22#include "llvm/Support/Error.h"
24#include "llvm/Support/Path.h"
26
27using namespace llvm;
28using namespace llvm::objcopy;
29using namespace llvm::objcopy::macho;
30using namespace llvm::object;
31
32using SectionPred = std::function<bool(const std::unique_ptr<Section> &Sec)>;
33using LoadCommandPred = std::function<bool(const LoadCommand &LC)>;
34
35#ifndef NDEBUG
37 // TODO: Add support for LC_REEXPORT_DYLIB, LC_LOAD_UPWARD_DYLIB and
38 // LC_LAZY_LOAD_DYLIB
39 return LC.MachOLoadCommand.load_command_data.cmd == MachO::LC_RPATH ||
40 LC.MachOLoadCommand.load_command_data.cmd == MachO::LC_ID_DYLIB ||
41 LC.MachOLoadCommand.load_command_data.cmd == MachO::LC_LOAD_DYLIB ||
42 LC.MachOLoadCommand.load_command_data.cmd == MachO::LC_LOAD_WEAK_DYLIB;
43}
44#endif
45
48 "unsupported load command encountered");
49
50 return StringRef(reinterpret_cast<const char *>(LC.Payload.data()),
51 LC.Payload.size())
52 .rtrim('\0');
53}
54
56 SectionPred RemovePred = [](const std::unique_ptr<Section> &) {
57 return false;
58 };
59
60 if (!Config.ToRemove.empty()) {
61 RemovePred = [&Config, RemovePred](const std::unique_ptr<Section> &Sec) {
62 return Config.ToRemove.matches(Sec->CanonicalName);
63 };
64 }
65
66 if (Config.StripAll || Config.StripDebug) {
67 // Remove all debug sections.
68 RemovePred = [RemovePred](const std::unique_ptr<Section> &Sec) {
69 if (Sec->Segname == "__DWARF")
70 return true;
71
72 return RemovePred(Sec);
73 };
74 }
75
76 if (!Config.OnlySection.empty()) {
77 // Overwrite RemovePred because --only-section takes priority.
78 RemovePred = [&Config](const std::unique_ptr<Section> &Sec) {
79 return !Config.OnlySection.matches(Sec->CanonicalName);
80 };
81 }
82
83 return Obj.removeSections(RemovePred);
84}
85
86static void markSymbols(const CommonConfig &, Object &Obj) {
87 // Symbols referenced from the indirect symbol table must not be removed.
89 if (ISE.Symbol)
90 (*ISE.Symbol)->Referenced = true;
91}
92
95 Object &Obj) {
96 for (SymbolEntry &Sym : Obj.SymTable) {
97 // Weaken symbols first to match ELFObjcopy behavior.
98 bool IsExportedAndDefined =
99 (Sym.n_type & llvm::MachO::N_EXT) &&
101 if (IsExportedAndDefined &&
102 (Config.Weaken || Config.SymbolsToWeaken.matches(Sym.Name)))
104
105 auto I = Config.SymbolsToRename.find(Sym.Name);
106 if (I != Config.SymbolsToRename.end())
107 Sym.Name = std::string(I->getValue());
108 }
109
110 auto RemovePred = [&Config, &MachOConfig,
111 &Obj](const std::unique_ptr<SymbolEntry> &N) {
112 if (N->Referenced)
113 return false;
114 if (MachOConfig.KeepUndefined && N->isUndefinedSymbol())
115 return false;
116 if (N->n_desc & MachO::REFERENCED_DYNAMICALLY)
117 return false;
118 if (Config.StripAll)
119 return true;
120 if (Config.DiscardMode == DiscardType::All && !(N->n_type & MachO::N_EXT))
121 return true;
122 // This behavior is consistent with cctools' strip.
123 if (Config.StripDebug && (N->n_type & MachO::N_STAB))
124 return true;
125 // This behavior is consistent with cctools' strip.
128 *Obj.SwiftVersion && N->isSwiftSymbol())
129 return true;
130 return false;
131 };
132
133 Obj.SymTable.removeSymbols(RemovePred);
134}
135
136template <typename LCType>
139 "unsupported load command encountered");
140
141 uint32_t NewCmdsize = alignTo(sizeof(LCType) + S.size() + 1, 8);
142
143 LC.MachOLoadCommand.load_command_data.cmdsize = NewCmdsize;
144 LC.Payload.assign(NewCmdsize - sizeof(LCType), 0);
145 std::copy(S.begin(), S.end(), LC.Payload.begin());
146}
147
149 LoadCommand LC;
150 MachO::rpath_command RPathLC;
151 RPathLC.cmd = MachO::LC_RPATH;
152 RPathLC.path = sizeof(MachO::rpath_command);
153 RPathLC.cmdsize = alignTo(sizeof(MachO::rpath_command) + Path.size() + 1, 8);
154 LC.MachOLoadCommand.rpath_command_data = RPathLC;
155 LC.Payload.assign(RPathLC.cmdsize - sizeof(MachO::rpath_command), 0);
156 std::copy(Path.begin(), Path.end(), LC.Payload.begin());
157 return LC;
158}
159
161 // Remove RPaths.
162 DenseSet<StringRef> RPathsToRemove(MachOConfig.RPathsToRemove.begin(),
164
165 LoadCommandPred RemovePred = [&RPathsToRemove,
166 &MachOConfig](const LoadCommand &LC) {
167 if (LC.MachOLoadCommand.load_command_data.cmd == MachO::LC_RPATH) {
168 // When removing all RPaths we don't need to care
169 // about what it contains
171 return true;
172
173 StringRef RPath = getPayloadString(LC);
174 if (RPathsToRemove.count(RPath)) {
175 RPathsToRemove.erase(RPath);
176 return true;
177 }
178 }
179 return false;
180 };
181
182 if (Error E = Obj.removeLoadCommands(RemovePred))
183 return E;
184
185 // Emit an error if the Mach-O binary does not contain an rpath path name
186 // specified in -delete_rpath.
187 for (StringRef RPath : MachOConfig.RPathsToRemove) {
188 if (RPathsToRemove.count(RPath))
189 return createStringError(errc::invalid_argument,
190 "no LC_RPATH load command with path: %s",
191 RPath.str().c_str());
192 }
193
194 DenseSet<StringRef> RPaths;
195
196 // Get all existing RPaths.
197 for (LoadCommand &LC : Obj.LoadCommands) {
198 if (LC.MachOLoadCommand.load_command_data.cmd == MachO::LC_RPATH)
199 RPaths.insert(getPayloadString(LC));
200 }
201
202 // Throw errors for invalid RPaths.
203 for (const auto &OldNew : MachOConfig.RPathsToUpdate) {
204 StringRef Old = OldNew.getFirst();
205 StringRef New = OldNew.getSecond();
206 if (!RPaths.contains(Old))
207 return createStringError(errc::invalid_argument,
208 "no LC_RPATH load command with path: " + Old);
209 if (RPaths.contains(New))
210 return createStringError(errc::invalid_argument,
211 "rpath '" + New +
212 "' would create a duplicate load command");
213 }
214
215 // Update load commands.
216 for (LoadCommand &LC : Obj.LoadCommands) {
217 switch (LC.MachOLoadCommand.load_command_data.cmd) {
218 case MachO::LC_ID_DYLIB:
220 updateLoadCommandPayloadString<MachO::dylib_command>(
222 break;
223
224 case MachO::LC_RPATH: {
225 StringRef RPath = getPayloadString(LC);
226 StringRef NewRPath = MachOConfig.RPathsToUpdate.lookup(RPath);
227 if (!NewRPath.empty())
228 updateLoadCommandPayloadString<MachO::rpath_command>(LC, NewRPath);
229 break;
230 }
231
232 // TODO: Add LC_REEXPORT_DYLIB, LC_LAZY_LOAD_DYLIB, and LC_LOAD_UPWARD_DYLIB
233 // here once llvm-objcopy supports them.
234 case MachO::LC_LOAD_DYLIB:
235 case MachO::LC_LOAD_WEAK_DYLIB:
236 StringRef InstallName = getPayloadString(LC);
237 StringRef NewInstallName =
238 MachOConfig.InstallNamesToUpdate.lookup(InstallName);
239 if (!NewInstallName.empty())
240 updateLoadCommandPayloadString<MachO::dylib_command>(LC,
241 NewInstallName);
242 break;
243 }
244 }
245
246 // Add new RPaths.
247 for (StringRef RPath : MachOConfig.RPathToAdd) {
248 if (RPaths.contains(RPath))
249 return createStringError(errc::invalid_argument,
250 "rpath '" + RPath +
251 "' would create a duplicate load command");
252 RPaths.insert(RPath);
253 Obj.LoadCommands.push_back(buildRPathLoadCommand(RPath));
254 }
255
256 for (StringRef RPath : MachOConfig.RPathToPrepend) {
257 if (RPaths.contains(RPath))
258 return createStringError(errc::invalid_argument,
259 "rpath '" + RPath +
260 "' would create a duplicate load command");
261
262 RPaths.insert(RPath);
263 Obj.LoadCommands.insert(Obj.LoadCommands.begin(),
264 buildRPathLoadCommand(RPath));
265 }
266
267 // Unlike appending rpaths, the indexes of subsequent load commands must
268 // be recalculated after prepending one.
269 if (!MachOConfig.RPathToPrepend.empty())
271
272 // Remove any empty segments if required.
273 if (!MachOConfig.EmptySegmentsToRemove.empty()) {
274 auto RemovePred = [&MachOConfig](const LoadCommand &LC) {
275 if (LC.MachOLoadCommand.load_command_data.cmd == MachO::LC_SEGMENT_64 ||
276 LC.MachOLoadCommand.load_command_data.cmd == MachO::LC_SEGMENT) {
277 return LC.Sections.empty() &&
279 }
280 return false;
281 };
282 if (Error E = Obj.removeLoadCommands(RemovePred))
283 return E;
284 }
285
286 return Error::success();
287}
288
290 Object &Obj) {
291 for (LoadCommand &LC : Obj.LoadCommands)
292 for (const std::unique_ptr<Section> &Sec : LC.Sections) {
293 if (Sec->CanonicalName == SecName) {
295 FileOutputBuffer::create(Filename, Sec->Content.size());
296 if (!BufferOrErr)
297 return BufferOrErr.takeError();
298 std::unique_ptr<FileOutputBuffer> Buf = std::move(*BufferOrErr);
299 llvm::copy(Sec->Content, Buf->getBufferStart());
300
301 if (Error E = Buf->commit())
302 return E;
303 return Error::success();
304 }
305 }
306
307 return createStringError(object_error::parse_failed, "section '%s' not found",
308 SecName.str().c_str());
309}
310
311static Error addSection(const NewSectionInfo &NewSection, Object &Obj) {
312 std::pair<StringRef, StringRef> Pair = NewSection.SectionName.split(',');
313 StringRef TargetSegName = Pair.first;
314 Section Sec(TargetSegName, Pair.second);
315 Sec.Content =
316 Obj.NewSectionsContents.save(NewSection.SectionData->getBuffer());
317 Sec.Size = Sec.Content.size();
318
319 // Add the a section into an existing segment.
320 for (LoadCommand &LC : Obj.LoadCommands) {
321 std::optional<StringRef> SegName = LC.getSegmentName();
322 if (SegName && SegName == TargetSegName) {
324 for (const std::unique_ptr<Section> &S : LC.Sections)
325 Addr = std::max(Addr, S->Addr + S->Size);
326 LC.Sections.push_back(std::make_unique<Section>(Sec));
327 LC.Sections.back()->Addr = Addr;
328 return Error::success();
329 }
330 }
331
332 // There's no segment named TargetSegName. Create a new load command and
333 // Insert a new section into it.
334 LoadCommand &NewSegment =
335 Obj.addSegment(TargetSegName, alignTo(Sec.Size, 16384));
336 NewSegment.Sections.push_back(std::make_unique<Section>(Sec));
337 NewSegment.Sections.back()->Addr = *NewSegment.getSegmentVMAddr();
338 return Error::success();
339}
340
342 StringRef SegName;
343 std::tie(SegName, SecName) = SecName.split(",");
344 auto FoundSeg =
345 llvm::find_if(O.LoadCommands, [SegName](const LoadCommand &LC) {
346 return LC.getSegmentName() == SegName;
347 });
348 if (FoundSeg == O.LoadCommands.end())
349 return createStringError(errc::invalid_argument,
350 "could not find segment with name '%s'",
351 SegName.str().c_str());
352 auto FoundSec = llvm::find_if(FoundSeg->Sections,
353 [SecName](const std::unique_ptr<Section> &Sec) {
354 return Sec->Sectname == SecName;
355 });
356 if (FoundSec == FoundSeg->Sections.end())
357 return createStringError(errc::invalid_argument,
358 "could not find section with name '%s'",
359 SecName.str().c_str());
360
361 assert(FoundSec->get()->CanonicalName == (SegName + "," + SecName).str());
362 return **FoundSec;
363}
364
365static Error updateSection(const NewSectionInfo &NewSection, Object &O) {
366 Expected<Section &> SecToUpdateOrErr = findSection(NewSection.SectionName, O);
367
368 if (!SecToUpdateOrErr)
369 return SecToUpdateOrErr.takeError();
370 Section &Sec = *SecToUpdateOrErr;
371
372 if (NewSection.SectionData->getBufferSize() > Sec.Size)
373 return createStringError(
374 errc::invalid_argument,
375 "new section cannot be larger than previous section");
376 Sec.Content = O.NewSectionsContents.save(NewSection.SectionData->getBuffer());
377 Sec.Size = Sec.Content.size();
378 return Error::success();
379}
380
381// isValidMachOCannonicalName returns success if Name is a MachO cannonical name
382// ("<segment>,<section>") and lengths of both segment and section names are
383// valid.
385 if (Name.count(',') != 1)
386 return createStringError(errc::invalid_argument,
387 "invalid section name '%s' (should be formatted "
388 "as '<segment name>,<section name>')",
389 Name.str().c_str());
390
391 std::pair<StringRef, StringRef> Pair = Name.split(',');
392 if (Pair.first.size() > 16)
393 return createStringError(errc::invalid_argument,
394 "too long segment name: '%s'",
395 Pair.first.str().c_str());
396 if (Pair.second.size() > 16)
397 return createStringError(errc::invalid_argument,
398 "too long section name: '%s'",
399 Pair.second.str().c_str());
400 return Error::success();
401}
402
404 const MachOConfig &MachOConfig, Object &Obj) {
405 // Dump sections before add/remove for compatibility with GNU objcopy.
406 for (StringRef Flag : Config.DumpSection) {
408 StringRef FileName;
409 std::tie(SectionName, FileName) = Flag.split('=');
410 if (Error E = dumpSectionToFile(SectionName, FileName, Obj))
411 return E;
412 }
413
414 if (Error E = removeSections(Config, Obj))
415 return E;
416
417 // Mark symbols to determine which symbols are still needed.
418 if (Config.StripAll)
419 markSymbols(Config, Obj);
420
422
423 if (Config.StripAll)
424 for (LoadCommand &LC : Obj.LoadCommands)
425 for (std::unique_ptr<Section> &Sec : LC.Sections)
426 Sec->Relocations.clear();
427
428 for (const NewSectionInfo &NewSection : Config.AddSection) {
430 return E;
431 if (Error E = addSection(NewSection, Obj))
432 return E;
433 }
434
435 for (const NewSectionInfo &NewSection : Config.UpdateSection) {
437 return E;
438 if (Error E = updateSection(NewSection, Obj))
439 return E;
440 }
441
443 return E;
444
445 return Error::success();
446}
447
451 raw_ostream &Out) {
454 if (!O)
455 return createFileError(Config.InputFilename, O.takeError());
456
457 if (O->get()->Header.FileType == MachO::HeaderFileType::MH_PRELOAD)
458 return createStringError(std::errc::not_supported,
459 "%s: MH_PRELOAD files are not supported",
460 Config.InputFilename.str().c_str());
461
462 if (Error E = handleArgs(Config, MachOConfig, **O))
463 return createFileError(Config.InputFilename, std::move(E));
464
465 // Page size used for alignment of segment sizes in Mach-O executables and
466 // dynamic libraries.
468 switch (In.getArch()) {
469 case Triple::ArchType::arm:
470 case Triple::ArchType::aarch64:
471 case Triple::ArchType::aarch64_32:
472 PageSize = 16384;
473 break;
474 default:
475 PageSize = 4096;
476 }
477
478 MachOWriter Writer(**O, In.is64Bit(), In.isLittleEndian(),
479 sys::path::filename(Config.OutputFilename), PageSize, Out);
480 if (auto E = Writer.finalize())
481 return E;
482 return Writer.write();
483}
484
487 raw_ostream &Out) {
490 for (const auto &O : In.objects()) {
491 Expected<std::unique_ptr<Archive>> ArOrErr = O.getAsArchive();
492 if (ArOrErr) {
493 Expected<std::vector<NewArchiveMember>> NewArchiveMembersOrErr =
495 if (!NewArchiveMembersOrErr)
496 return NewArchiveMembersOrErr.takeError();
497 auto Kind = (*ArOrErr)->kind();
500 Expected<std::unique_ptr<MemoryBuffer>> OutputBufferOrErr =
502 *NewArchiveMembersOrErr,
503 (*ArOrErr)->hasSymbolTable() ? SymtabWritingMode::NormalSymtab
504 : SymtabWritingMode::NoSymtab,
505 Kind, Config.getCommonConfig().DeterministicArchives,
506 (*ArOrErr)->isThin());
507 if (!OutputBufferOrErr)
508 return OutputBufferOrErr.takeError();
510 object::createBinary(**OutputBufferOrErr);
511 if (!BinaryOrErr)
512 return BinaryOrErr.takeError();
513 Binaries.emplace_back(std::move(*BinaryOrErr),
514 std::move(*OutputBufferOrErr));
515 Slices.emplace_back(*cast<Archive>(Binaries.back().getBinary()),
516 O.getCPUType(), O.getCPUSubType(),
517 O.getArchFlagName(), O.getAlign());
518 continue;
519 }
520 // The methods getAsArchive, getAsObjectFile, getAsIRObject of the class
521 // ObjectForArch return an Error in case of the type mismatch. We need to
522 // check each in turn to see what kind of slice this is, so ignore errors
523 // produced along the way.
524 consumeError(ArOrErr.takeError());
525
526 Expected<std::unique_ptr<MachOObjectFile>> ObjOrErr = O.getAsObjectFile();
527 if (!ObjOrErr) {
528 consumeError(ObjOrErr.takeError());
529 return createStringError(
530 std::errc::invalid_argument,
531 "slice for '%s' of the universal Mach-O binary "
532 "'%s' is not a Mach-O object or an archive",
533 O.getArchFlagName().c_str(),
534 Config.getCommonConfig().InputFilename.str().c_str());
535 }
536 std::string ArchFlagName = O.getArchFlagName();
537
539 raw_svector_ostream MemStream(Buffer);
540
541 Expected<const MachOConfig &> MachO = Config.getMachOConfig();
542 if (!MachO)
543 return MachO.takeError();
544
545 if (Error E = executeObjcopyOnBinary(Config.getCommonConfig(), *MachO,
546 **ObjOrErr, MemStream))
547 return E;
548
549 auto MB = std::make_unique<SmallVectorMemoryBuffer>(
550 std::move(Buffer), ArchFlagName, /*RequiresNullTerminator=*/false);
552 if (!BinaryOrErr)
553 return BinaryOrErr.takeError();
554 Binaries.emplace_back(std::move(*BinaryOrErr), std::move(MB));
555 Slices.emplace_back(*cast<MachOObjectFile>(Binaries.back().getBinary()),
556 O.getAlign());
557 }
558
559 if (Error Err = writeUniversalBinaryToStream(Slices, Out))
560 return Err;
561
562 return Error::success();
563}
static GCRegistry::Add< CoreCLRGC > E("coreclr", "CoreCLR-compatible GC")
This file defines the DenseSet and SmallDenseSet classes.
uint64_t Addr
std::string Name
std::function< bool(const SectionBase &Sec)> SectionPred
Definition: ELFObjcopy.cpp:52
RelaxConfig Config
Definition: ELF_riscv.cpp:506
Symbol * Sym
Definition: ELF_riscv.cpp:479
static cl::opt< int > PageSize("imp-null-check-page-size", cl::desc("The page size of the target in bytes"), cl::init(4096), cl::Hidden)
#define I(x, y, z)
Definition: MD5.cpp:58
static Error processLoadCommands(const MachOConfig &MachOConfig, Object &Obj)
static Expected< Section & > findSection(StringRef SecName, Object &O)
static Error isValidMachOCannonicalName(StringRef Name)
static void updateLoadCommandPayloadString(LoadCommand &LC, StringRef S)
static LoadCommand buildRPathLoadCommand(StringRef Path)
static bool isLoadCommandWithPayloadString(const LoadCommand &LC)
static void markSymbols(const CommonConfig &, Object &Obj)
static Error handleArgs(const CommonConfig &Config, const MachOConfig &MachOConfig, Object &Obj)
static Error removeSections(const CommonConfig &Config, Object &Obj)
std::function< bool(const LoadCommand &LC)> LoadCommandPred
static Error addSection(const NewSectionInfo &NewSection, Object &Obj)
static Error dumpSectionToFile(StringRef SecName, StringRef Filename, Object &Obj)
static StringRef getPayloadString(const LoadCommand &LC)
static void updateAndRemoveSymbols(const CommonConfig &Config, const MachOConfig &MachOConfig, Object &Obj)
static Error updateSection(const NewSectionInfo &NewSection, Object &O)
assert(ImpDefSCC.getReg()==AMDGPU::SCC &&ImpDefSCC.isDef())
Implements a dense probed hash-table based set.
Definition: DenseSet.h:271
Lightweight error class with error context and mandatory checking.
Definition: Error.h:160
static ErrorSuccess success()
Create a success value.
Definition: Error.h:334
Tagged union holding either a T or a Error.
Definition: Error.h:474
Error takeError()
Take ownership of the stored error.
Definition: Error.h:601
static Expected< std::unique_ptr< FileOutputBuffer > > create(StringRef FilePath, size_t Size, unsigned Flags=0)
Factory method to create an OutputBuffer object which manages a read/write buffer of the specified si...
reference emplace_back(ArgTypes &&... Args)
Definition: SmallVector.h:950
This is a 'vector' (really, a variable-sized array), optimized for the case when the array is small.
Definition: SmallVector.h:1209
StringRef - Represent a constant reference to a string, i.e.
Definition: StringRef.h:50
std::pair< StringRef, StringRef > split(char Separator) const
Split into two substrings around the first occurrence of a separator character.
Definition: StringRef.h:696
std::string str() const
str - Get the contents as an std::string.
Definition: StringRef.h:222
constexpr bool empty() const
empty - Check if the string is empty.
Definition: StringRef.h:134
iterator begin() const
Definition: StringRef.h:111
constexpr size_t size() const
size - Get the string size.
Definition: StringRef.h:137
iterator end() const
Definition: StringRef.h:113
StringRef rtrim(char Char) const
Return string with consecutive Char characters starting from the right removed.
Definition: StringRef.h:799
StringRef save(const char *S)
Definition: StringSaver.h:30
std::pair< iterator, bool > insert(const ValueT &V)
Definition: DenseSet.h:206
bool contains(const_arg_type_t< ValueT > V) const
Check if the set contains the given element.
Definition: DenseSet.h:185
bool erase(const ValueT &V)
Definition: DenseSet.h:101
size_type count(const_arg_type_t< ValueT > V) const
Return 1 if the specified key is in the set, 0 otherwise.
Definition: DenseSet.h:97
virtual Expected< std::unique_ptr< Object > > create() const =0
This class implements an extremely fast bulk output stream that can only output to a stream.
Definition: raw_ostream.h:52
A raw_ostream that writes to an SmallVector or SmallString.
Definition: raw_ostream.h:690
@ N_TYPE
Definition: MachO.h:309
@ N_STAB
Definition: MachO.h:307
@ MH_DYLDLINK
Definition: MachO.h:62
@ N_UNDF
Definition: MachO.h:316
@ N_WEAK_DEF
Definition: MachO.h:346
@ REFERENCED_DYNAMICALLY
Definition: MachO.h:343
Error executeObjcopyOnBinary(const CommonConfig &Config, const MachOConfig &MachOConfig, object::MachOObjectFile &In, raw_ostream &Out)
Apply the transformations described by Config and MachOConfig to In and writes the result into Out.
Error executeObjcopyOnMachOUniversalBinary(const MultiFormatConfig &Config, const object::MachOUniversalBinary &In, raw_ostream &Out)
Apply the transformations described by Config and MachOConfig to In and writes the result into Out.
Expected< std::vector< NewArchiveMember > > createNewArchiveMembers(const MultiFormatConfig &Config, const Archive &Ar)
Applies the transformations described by Config to each member in archive Ar.
Definition: Archive.cpp:24
Error writeUniversalBinaryToStream(ArrayRef< Slice > Slices, raw_ostream &Out, FatHeaderType FatHeader=FatHeaderType::FatHeader)
Expected< std::unique_ptr< Binary > > createBinary(MemoryBufferRef Source, LLVMContext *Context=nullptr, bool InitContent=true)
Create a Binary from Source, autodetecting the file type.
Definition: Binary.cpp:45
StringRef filename(StringRef path, Style style=Style::native)
Get filename.
Definition: Path.cpp:579
This is an optimization pass for GlobalISel generic memory operations.
Definition: AddressRanges.h:18
Error createFileError(const Twine &F, Error E)
Concatenate a source file path and/or name with an Error.
Definition: Error.h:1325
Error createStringError(std::error_code EC, char const *Fmt, const Ts &... Vals)
Create formatted StringError object.
Definition: Error.h:1244
uint64_t alignTo(uint64_t Size, Align A)
Returns a multiple of A needed to store Size bytes.
Definition: Alignment.h:155
Expected< std::unique_ptr< MemoryBuffer > > writeArchiveToBuffer(ArrayRef< NewArchiveMember > NewMembers, SymtabWritingMode WriteSymtab, object::Archive::Kind Kind, bool Deterministic, bool Thin)
OutputIt copy(R &&Range, OutputIt Out)
Definition: STLExtras.h:1833
auto find_if(R &&Range, UnaryPredicate P)
Provide wrappers to std::find_if which take ranges instead of having to pass begin/end explicitly.
Definition: STLExtras.h:1758
void consumeError(Error Err)
Consume a Error without doing anything.
Definition: Error.h:1041
#define N
std::vector< StringRef > RPathToPrepend
Definition: MachOConfig.h:25
DenseMap< StringRef, StringRef > InstallNamesToUpdate
Definition: MachOConfig.h:27
std::optional< StringRef > SharedLibId
Definition: MachOConfig.h:31
DenseSet< StringRef > EmptySegmentsToRemove
Definition: MachOConfig.h:34
DenseSet< StringRef > RPathsToRemove
Definition: MachOConfig.h:28
DenseMap< StringRef, StringRef > RPathsToUpdate
Definition: MachOConfig.h:26
std::vector< StringRef > RPathToAdd
Definition: MachOConfig.h:24
std::shared_ptr< MemoryBuffer > SectionData
Definition: CommonConfig.h:193
std::optional< SymbolEntry * > Symbol
The Symbol referenced by this entry.
Definition: MachOObject.h:155
std::vector< IndirectSymbolEntry > Symbols
Definition: MachOObject.h:163
MachO::macho_load_command MachOLoadCommand
Definition: MachOObject.h:82
std::optional< StringRef > getSegmentName() const
std::vector< std::unique_ptr< Section > > Sections
Definition: MachOObject.h:93
std::optional< uint64_t > getSegmentVMAddr() const
std::vector< uint8_t > Payload
Definition: MachOObject.h:87
Error removeLoadCommands(function_ref< bool(const LoadCommand &)> ToRemove)
Definition: MachOObject.cpp:92
Error removeSections(function_ref< bool(const std::unique_ptr< Section > &)> ToRemove)
std::vector< LoadCommand > LoadCommands
Definition: MachOObject.h:300
std::optional< uint32_t > SwiftVersion
Definition: MachOObject.h:318
IndirectSymbolTable IndirectSymTable
Definition: MachOObject.h:310
LoadCommand & addSegment(StringRef SegName, uint64_t SegVMSize)
Creates a new segment load command in the object and returns a reference to the newly created load co...
void removeSymbols(function_ref< bool(const std::unique_ptr< SymbolEntry > &)> ToRemove)
Definition: MachOObject.cpp:36