1 //===-- llvm-ar.cpp - LLVM archive librarian utility ----------------------===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // Builds up (relatively) standard unix archive files (.a) containing LLVM
11 // bitcode or other files.
13 //===----------------------------------------------------------------------===//
15 #include "llvm/IR/LLVMContext.h"
16 #include "llvm/IR/Module.h"
17 #include "llvm/Object/Archive.h"
18 #include "llvm/Object/ObjectFile.h"
19 #include "llvm/Support/CommandLine.h"
20 #include "llvm/Support/FileSystem.h"
21 #include "llvm/Support/Format.h"
22 #include "llvm/Support/ManagedStatic.h"
23 #include "llvm/Support/MemoryBuffer.h"
24 #include "llvm/Support/PrettyStackTrace.h"
25 #include "llvm/Support/Signals.h"
26 #include "llvm/Support/ToolOutputFile.h"
27 #include "llvm/Support/raw_ostream.h"
32 #if !defined(_MSC_VER) && !defined(__MINGW32__)
40 // The name this program was invoked as.
41 static StringRef ToolName;
43 static const char *TemporaryOutput;
44 static int TmpArchiveFD = -1;
46 // fail - Show the error message and exit.
47 LLVM_ATTRIBUTE_NORETURN static void fail(Twine Error) {
48 outs() << ToolName << ": " << Error << ".\n";
49 if (TmpArchiveFD != -1)
52 sys::fs::remove(TemporaryOutput);
56 static void failIfError(error_code EC, Twine Context = "") {
60 std::string ContextStr = Context.str();
63 fail(Context + ": " + EC.message());
66 // Option for compatibility with AIX, not used but must allow it to be present.
68 X32Option ("X32_64", cl::Hidden,
69 cl::desc("Ignored option for compatibility with AIX"));
71 // llvm-ar operation code and modifier flags. This must come first.
72 static cl::opt<std::string>
73 Options(cl::Positional, cl::Required, cl::desc("{operation}[modifiers]..."));
75 // llvm-ar remaining positional arguments.
76 static cl::list<std::string>
77 RestOfArgs(cl::Positional, cl::OneOrMore,
78 cl::desc("[relpos] [count] <archive-file> [members]..."));
80 // MoreHelp - Provide additional help output explaining the operations and
81 // modifiers of llvm-ar. This object instructs the CommandLine library
82 // to print the text of the constructor when the --help option is given.
83 static cl::extrahelp MoreHelp(
85 " d[NsS] - delete file(s) from the archive\n"
86 " m[abiSs] - move file(s) in the archive\n"
87 " p[kN] - print file(s) found in the archive\n"
88 " q[ufsS] - quick append file(s) to the archive\n"
89 " r[abfiuRsS] - replace or insert file(s) into the archive\n"
90 " t - display contents of archive\n"
91 " x[No] - extract file(s) from the archive\n"
92 "\nMODIFIERS (operation specific):\n"
93 " [a] - put file(s) after [relpos]\n"
94 " [b] - put file(s) before [relpos] (same as [i])\n"
95 " [i] - put file(s) before [relpos] (same as [b])\n"
96 " [N] - use instance [count] of name\n"
97 " [o] - preserve original dates\n"
98 " [s] - create an archive index (cf. ranlib)\n"
99 " [S] - do not build a symbol table\n"
100 " [u] - update only files newer than archive contents\n"
101 "\nMODIFIERS (generic):\n"
102 " [c] - do not warn if the library had to be created\n"
103 " [v] - be verbose about actions taken\n"
106 // This enumeration delineates the kinds of operations on an archive
107 // that are permitted.
108 enum ArchiveOperation {
109 Print, ///< Print the contents of the archive
110 Delete, ///< Delete the specified members
111 Move, ///< Move members to end or as given by {a,b,i} modifiers
112 QuickAppend, ///< Quickly append to end of archive
113 ReplaceOrInsert, ///< Replace or Insert members
114 DisplayTable, ///< Display the table of contents
115 Extract ///< Extract files back to file system
118 // Modifiers to follow operation to vary behavior
119 static bool AddAfter = false; ///< 'a' modifier
120 static bool AddBefore = false; ///< 'b' modifier
121 static bool Create = false; ///< 'c' modifier
122 static bool OriginalDates = false; ///< 'o' modifier
123 static bool OnlyUpdate = false; ///< 'u' modifier
124 static bool Verbose = false; ///< 'v' modifier
125 static bool Symtab = true; ///< 's' modifier
127 // Relative Positional Argument (for insert/move). This variable holds
128 // the name of the archive member to which the 'a', 'b' or 'i' modifier
129 // refers. Only one of 'a', 'b' or 'i' can be specified so we only need
131 static std::string RelPos;
133 // This variable holds the name of the archive file as given on the
135 static std::string ArchiveName;
137 // This variable holds the list of member files to proecess, as given
138 // on the command line.
139 static std::vector<std::string> Members;
141 // show_help - Show the error message, the help message and exit.
142 LLVM_ATTRIBUTE_NORETURN static void
143 show_help(const std::string &msg) {
144 errs() << ToolName << ": " << msg << "\n\n";
145 cl::PrintHelpMessage();
149 // getRelPos - Extract the member filename from the command line for
150 // the [relpos] argument associated with a, b, and i modifiers
151 static void getRelPos() {
152 if(RestOfArgs.size() == 0)
153 show_help("Expected [relpos] for a, b, or i modifier");
154 RelPos = RestOfArgs[0];
155 RestOfArgs.erase(RestOfArgs.begin());
158 // getArchive - Get the archive file name from the command line
159 static void getArchive() {
160 if(RestOfArgs.size() == 0)
161 show_help("An archive name must be specified");
162 ArchiveName = RestOfArgs[0];
163 RestOfArgs.erase(RestOfArgs.begin());
166 // getMembers - Copy over remaining items in RestOfArgs to our Members vector
167 // This is just for clarity.
168 static void getMembers() {
169 if(RestOfArgs.size() > 0)
170 Members = std::vector<std::string>(RestOfArgs);
173 // parseCommandLine - Parse the command line options as presented and return the
174 // operation specified. Process all modifiers and check to make sure that
175 // constraints on modifier/operation pairs have not been violated.
176 static ArchiveOperation parseCommandLine() {
178 // Keep track of number of operations. We can only specify one
180 unsigned NumOperations = 0;
182 // Keep track of the number of positional modifiers (a,b,i). Only
183 // one can be specified.
184 unsigned NumPositional = 0;
186 // Keep track of which operation was requested
187 ArchiveOperation Operation;
189 for(unsigned i=0; i<Options.size(); ++i) {
191 case 'd': ++NumOperations; Operation = Delete; break;
192 case 'm': ++NumOperations; Operation = Move ; break;
193 case 'p': ++NumOperations; Operation = Print; break;
194 case 'q': ++NumOperations; Operation = QuickAppend; break;
195 case 'r': ++NumOperations; Operation = ReplaceOrInsert; break;
196 case 't': ++NumOperations; Operation = DisplayTable; break;
197 case 'x': ++NumOperations; Operation = Extract; break;
198 case 'c': Create = true; break;
199 case 'l': /* accepted but unused */ break;
200 case 'o': OriginalDates = true; break;
207 case 'u': OnlyUpdate = true; break;
208 case 'v': Verbose = true; break;
225 cl::PrintHelpMessage();
229 // At this point, the next thing on the command line must be
233 // Everything on the command line at this point is a member.
236 // Perform various checks on the operation/modifier specification
237 // to make sure we are dealing with a legal request.
238 if (NumOperations == 0)
239 show_help("You must specify at least one of the operations");
240 if (NumOperations > 1)
241 show_help("Only one operation may be specified");
242 if (NumPositional > 1)
243 show_help("You may only specify one of a, b, and i modifiers");
244 if (AddAfter || AddBefore) {
245 if (Operation != Move && Operation != ReplaceOrInsert)
246 show_help("The 'a', 'b' and 'i' modifiers can only be specified with "
247 "the 'm' or 'r' operations");
249 if (OriginalDates && Operation != Extract)
250 show_help("The 'o' modifier is only applicable to the 'x' operation");
251 if (OnlyUpdate && Operation != ReplaceOrInsert)
252 show_help("The 'u' modifier is only applicable to the 'r' operation");
254 // Return the parsed operation to the caller
258 // Implements the 'p' operation. This function traverses the archive
259 // looking for members that match the path list.
260 static void doPrint(StringRef Name, object::Archive::child_iterator I) {
262 outs() << "Printing " << Name << "\n";
264 StringRef Data = I->getBuffer();
265 outs().write(Data.data(), Data.size());
268 // putMode - utility function for printing out the file mode when the 't'
269 // operation is in verbose mode.
270 static void printMode(unsigned mode) {
285 // Implement the 't' operation. This function prints out just
286 // the file names of each of the members. However, if verbose mode is requested
287 // ('v' modifier) then the file type, permission mode, user, group, size, and
288 // modification time are also printed.
289 static void doDisplayTable(StringRef Name, object::Archive::child_iterator I) {
291 sys::fs::perms Mode = I->getAccessMode();
292 printMode((Mode >> 6) & 007);
293 printMode((Mode >> 3) & 007);
294 printMode(Mode & 007);
295 outs() << ' ' << I->getUID();
296 outs() << '/' << I->getGID();
297 outs() << ' ' << format("%6llu", I->getSize());
298 outs() << ' ' << I->getLastModified().str();
301 outs() << Name << "\n";
304 // Implement the 'x' operation. This function extracts files back to the file
306 static void doExtract(StringRef Name, object::Archive::child_iterator I) {
307 // Retain the original mode.
308 sys::fs::perms Mode = I->getAccessMode();
309 SmallString<128> Storage = Name;
313 sys::fs::openFileForWrite(Storage.c_str(), FD, sys::fs::F_Binary, Mode),
317 raw_fd_ostream file(FD, false);
319 // Get the data and its length
320 StringRef Data = I->getBuffer();
323 file.write(Data.data(), Data.size());
326 // If we're supposed to retain the original modification times, etc. do so
330 sys::fs::setLastModificationAndAccessTime(FD, I->getLastModified()));
333 fail("Could not close the file");
336 static bool shouldCreateArchive(ArchiveOperation Op) {
346 case ReplaceOrInsert:
350 llvm_unreachable("Missing entry in covered switch.");
353 static void performReadOperation(ArchiveOperation Operation,
354 object::Archive *OldArchive) {
355 for (object::Archive::child_iterator I = OldArchive->begin_children(),
356 E = OldArchive->end_children();
359 failIfError(I->getName(Name));
361 if (!Members.empty() &&
362 std::find(Members.begin(), Members.end(), Name) == Members.end())
367 llvm_unreachable("Not a read operation");
372 doDisplayTable(Name, I);
382 class NewArchiveIterator {
385 object::Archive::child_iterator OldI;
386 std::string NewFilename;
389 NewArchiveIterator(object::Archive::child_iterator I, StringRef Name);
390 NewArchiveIterator(std::string *I, StringRef Name);
391 NewArchiveIterator();
392 bool isNewMember() const;
393 object::Archive::child_iterator getOld() const;
394 const char *getNew() const;
395 StringRef getName() const;
399 NewArchiveIterator::NewArchiveIterator() {}
401 NewArchiveIterator::NewArchiveIterator(object::Archive::child_iterator I,
403 : IsNewMember(false), Name(Name), OldI(I) {}
405 NewArchiveIterator::NewArchiveIterator(std::string *NewFilename, StringRef Name)
406 : IsNewMember(true), Name(Name), NewFilename(*NewFilename) {}
408 StringRef NewArchiveIterator::getName() const { return Name; }
410 bool NewArchiveIterator::isNewMember() const { return IsNewMember; }
412 object::Archive::child_iterator NewArchiveIterator::getOld() const {
413 assert(!IsNewMember);
417 const char *NewArchiveIterator::getNew() const {
419 return NewFilename.c_str();
422 template <typename T>
423 void addMember(std::vector<NewArchiveIterator> &Members, T I, StringRef Name,
425 NewArchiveIterator NI(I, Name);
427 Members.push_back(NI);
437 HasName(StringRef Name) : Name(Name) {}
438 bool operator()(StringRef Path) { return Name == sys::path::filename(Path); }
451 computeInsertAction(ArchiveOperation Operation,
452 object::Archive::child_iterator I, StringRef Name,
453 std::vector<std::string>::iterator &Pos) {
454 if (Operation == QuickAppend || Members.empty())
455 return IA_AddOldMember;
457 std::vector<std::string>::iterator MI =
458 std::find_if(Members.begin(), Members.end(), HasName(Name));
460 if (MI == Members.end())
461 return IA_AddOldMember;
465 if (Operation == Delete)
468 if (Operation == Move)
469 return IA_MoveOldMember;
471 if (Operation == ReplaceOrInsert) {
472 StringRef PosName = sys::path::filename(RelPos);
475 return IA_AddNewMeber;
476 return IA_MoveNewMember;
479 // We could try to optimize this to a fstat, but it is not a common
481 sys::fs::file_status Status;
482 failIfError(sys::fs::status(*MI, Status));
483 if (Status.getLastModificationTime() < I->getLastModified()) {
485 return IA_AddOldMember;
486 return IA_MoveOldMember;
490 return IA_AddNewMeber;
491 return IA_MoveNewMember;
493 llvm_unreachable("No such operation");
496 // We have to walk this twice and computing it is not trivial, so creating an
497 // explicit std::vector is actually fairly efficient.
498 static std::vector<NewArchiveIterator>
499 computeNewArchiveMembers(ArchiveOperation Operation,
500 object::Archive *OldArchive) {
501 std::vector<NewArchiveIterator> Ret;
502 std::vector<NewArchiveIterator> Moved;
504 StringRef PosName = sys::path::filename(RelPos);
506 for (object::Archive::child_iterator I = OldArchive->begin_children(),
507 E = OldArchive->end_children();
509 int Pos = Ret.size();
511 failIfError(I->getName(Name));
512 if (Name == PosName) {
513 assert(AddAfter || AddBefore);
520 std::vector<std::string>::iterator MemberI = Members.end();
521 InsertAction Action = computeInsertAction(Operation, I, Name, MemberI);
523 case IA_AddOldMember:
524 addMember(Ret, I, Name);
527 addMember(Ret, &*MemberI, Name);
531 case IA_MoveOldMember:
532 addMember(Moved, I, Name);
534 case IA_MoveNewMember:
535 addMember(Moved, &*MemberI, Name);
538 if (MemberI != Members.end())
539 Members.erase(MemberI);
543 if (Operation == Delete)
546 if (!RelPos.empty() && InsertPos == -1)
547 fail("Insertion point not found");
550 InsertPos = Ret.size();
552 assert(unsigned(InsertPos) <= Ret.size());
553 Ret.insert(Ret.begin() + InsertPos, Moved.begin(), Moved.end());
555 Ret.insert(Ret.begin() + InsertPos, Members.size(), NewArchiveIterator());
557 for (std::vector<std::string>::iterator I = Members.begin(),
559 I != E; ++I, ++Pos) {
560 StringRef Name = sys::path::filename(*I);
561 addMember(Ret, &*I, Name, Pos);
567 template <typename T>
568 static void printWithSpacePadding(raw_ostream &OS, T Data, unsigned Size) {
569 uint64_t OldPos = OS.tell();
571 unsigned SizeSoFar = OS.tell() - OldPos;
572 assert(Size >= SizeSoFar && "Data doesn't fit in Size");
573 unsigned Remaining = Size - SizeSoFar;
574 for (unsigned I = 0; I < Remaining; ++I)
578 static void print32BE(raw_fd_ostream &Out, unsigned Val) {
579 for (int I = 3; I >= 0; --I) {
580 char V = (Val >> (8 * I)) & 0xff;
585 static void printRestOfMemberHeader(raw_fd_ostream &Out,
586 const sys::TimeValue &ModTime, unsigned UID,
587 unsigned GID, unsigned Perms,
589 printWithSpacePadding(Out, ModTime.toEpochTime(), 12);
590 printWithSpacePadding(Out, UID, 6);
591 printWithSpacePadding(Out, GID, 6);
592 printWithSpacePadding(Out, format("%o", Perms), 8);
593 printWithSpacePadding(Out, Size, 10);
597 static void printMemberHeader(raw_fd_ostream &Out, StringRef Name,
598 const sys::TimeValue &ModTime, unsigned UID,
599 unsigned GID, unsigned Perms, unsigned Size) {
600 printWithSpacePadding(Out, Twine(Name) + "/", 16);
601 printRestOfMemberHeader(Out, ModTime, UID, GID, Perms, Size);
604 static void printMemberHeader(raw_fd_ostream &Out, unsigned NameOffset,
605 const sys::TimeValue &ModTime, unsigned UID,
606 unsigned GID, unsigned Perms, unsigned Size) {
608 printWithSpacePadding(Out, NameOffset, 15);
609 printRestOfMemberHeader(Out, ModTime, UID, GID, Perms, Size);
612 static void writeStringTable(raw_fd_ostream &Out,
613 ArrayRef<NewArchiveIterator> Members,
614 std::vector<unsigned> &StringMapIndexes) {
615 unsigned StartOffset = 0;
616 for (ArrayRef<NewArchiveIterator>::iterator I = Members.begin(),
619 StringRef Name = I->getName();
620 if (Name.size() < 16)
622 if (StartOffset == 0) {
623 printWithSpacePadding(Out, "//", 58);
625 StartOffset = Out.tell();
627 StringMapIndexes.push_back(Out.tell() - StartOffset);
628 Out << Name << "/\n";
630 if (StartOffset == 0)
634 int Pos = Out.tell();
635 Out.seek(StartOffset - 12);
636 printWithSpacePadding(Out, Pos - StartOffset, 10);
640 static void writeSymbolTable(
641 raw_fd_ostream &Out, ArrayRef<NewArchiveIterator> Members,
642 std::vector<std::pair<unsigned, unsigned> > &MemberOffsetRefs) {
643 unsigned StartOffset = 0;
644 unsigned MemberNum = 0;
645 std::vector<StringRef> SymNames;
646 std::vector<object::ObjectFile *> DeleteIt;
647 for (ArrayRef<NewArchiveIterator>::iterator I = Members.begin(),
649 I != E; ++I, ++MemberNum) {
650 object::ObjectFile *Obj;
651 if (I->isNewMember()) {
652 const char *Filename = I->getNew();
653 Obj = object::ObjectFile::createObjectFile(Filename);
655 object::Archive::child_iterator OldMember = I->getOld();
656 OwningPtr<object::Binary> Binary;
657 error_code EC = OldMember->getAsBinary(Binary);
658 if (EC) { // FIXME: check only for "not an object file" errors.
661 Obj = dyn_cast<object::ObjectFile>(Binary.get());
668 DeleteIt.push_back(Obj);
670 printMemberHeader(Out, "", sys::TimeValue::now(), 0, 0, 0, 0);
671 StartOffset = Out.tell();
676 for (object::symbol_iterator I = Obj->begin_symbols(),
677 E = Obj->end_symbols();
678 I != E; I.increment(Err), failIfError(Err)) {
680 failIfError(I->getFlags(Symflags));
681 if (Symflags & object::SymbolRef::SF_FormatSpecific)
683 if (!(Symflags & object::SymbolRef::SF_Global))
685 if (Symflags & object::SymbolRef::SF_Undefined)
688 failIfError(I->getName(Name));
689 SymNames.push_back(Name);
690 MemberOffsetRefs.push_back(std::make_pair(Out.tell(), MemberNum));
694 for (std::vector<StringRef>::iterator I = SymNames.begin(),
701 for (std::vector<object::ObjectFile *>::iterator I = DeleteIt.begin(),
704 object::ObjectFile *O = *I;
708 if (StartOffset == 0)
714 unsigned Pos = Out.tell();
715 Out.seek(StartOffset - 12);
716 printWithSpacePadding(Out, Pos - StartOffset, 10);
717 Out.seek(StartOffset);
718 print32BE(Out, SymNames.size());
722 static void performWriteOperation(ArchiveOperation Operation,
723 object::Archive *OldArchive) {
724 SmallString<128> TmpArchive;
725 failIfError(sys::fs::createUniqueFile(ArchiveName + ".temp-archive-%%%%%%%.a",
726 TmpArchiveFD, TmpArchive));
728 TemporaryOutput = TmpArchive.c_str();
729 tool_output_file Output(TemporaryOutput, TmpArchiveFD);
730 raw_fd_ostream &Out = Output.os();
733 std::vector<NewArchiveIterator> NewMembers =
734 computeNewArchiveMembers(Operation, OldArchive);
736 std::vector<std::pair<unsigned, unsigned> > MemberOffsetRefs;
739 writeSymbolTable(Out, NewMembers, MemberOffsetRefs);
742 std::vector<unsigned> StringMapIndexes;
743 writeStringTable(Out, NewMembers, StringMapIndexes);
745 std::vector<std::pair<unsigned, unsigned> >::iterator MemberRefsI =
746 MemberOffsetRefs.begin();
748 unsigned MemberNum = 0;
749 unsigned LongNameMemberNum = 0;
750 for (std::vector<NewArchiveIterator>::iterator I = NewMembers.begin(),
751 E = NewMembers.end();
752 I != E; ++I, ++MemberNum) {
754 unsigned Pos = Out.tell();
755 while (MemberRefsI != MemberOffsetRefs.end() &&
756 MemberRefsI->second == MemberNum) {
757 Out.seek(MemberRefsI->first);
763 if (I->isNewMember()) {
764 const char *FileName = I->getNew();
767 failIfError(sys::fs::openFileForRead(FileName, FD), FileName);
769 sys::fs::file_status Status;
770 failIfError(sys::fs::status(FD, Status), FileName);
772 OwningPtr<MemoryBuffer> File;
773 failIfError(MemoryBuffer::getOpenFile(FD, FileName, File,
774 Status.getSize(), false),
777 StringRef Name = sys::path::filename(FileName);
778 if (Name.size() < 16)
779 printMemberHeader(Out, Name, Status.getLastModificationTime(),
780 Status.getUser(), Status.getGroup(),
781 Status.permissions(), Status.getSize());
783 printMemberHeader(Out, StringMapIndexes[LongNameMemberNum++],
784 Status.getLastModificationTime(), Status.getUser(),
785 Status.getGroup(), Status.permissions(),
787 Out << File->getBuffer();
789 object::Archive::child_iterator OldMember = I->getOld();
790 StringRef Name = I->getName();
792 if (Name.size() < 16)
793 printMemberHeader(Out, Name, OldMember->getLastModified(),
794 OldMember->getUID(), OldMember->getGID(),
795 OldMember->getAccessMode(), OldMember->getSize());
797 printMemberHeader(Out, StringMapIndexes[LongNameMemberNum++],
798 OldMember->getLastModified(), OldMember->getUID(),
799 OldMember->getGID(), OldMember->getAccessMode(),
800 OldMember->getSize());
801 Out << OldMember->getBuffer();
809 sys::fs::rename(TemporaryOutput, ArchiveName);
810 TemporaryOutput = NULL;
813 static void performOperation(ArchiveOperation Operation,
814 object::Archive *OldArchive) {
819 performReadOperation(Operation, OldArchive);
825 case ReplaceOrInsert:
826 performWriteOperation(Operation, OldArchive);
829 llvm_unreachable("Unknown operation.");
832 // main - main program for llvm-ar .. see comments in the code
833 int main(int argc, char **argv) {
835 // Print a stack trace if we signal out.
836 sys::PrintStackTraceOnErrorSignal();
837 PrettyStackTraceProgram X(argc, argv);
838 llvm_shutdown_obj Y; // Call llvm_shutdown() on exit.
840 // Have the command line options parsed and handle things
841 // like --help and --version.
842 cl::ParseCommandLineOptions(argc, argv,
843 "LLVM Archiver (llvm-ar)\n\n"
844 " This program archives bitcode files into single libraries\n"
847 // Do our own parsing of the command line because the CommandLine utility
848 // can't handle the grouped positional parameters without a dash.
849 ArchiveOperation Operation = parseCommandLine();
851 // Create or open the archive object.
852 OwningPtr<MemoryBuffer> Buf;
853 error_code EC = MemoryBuffer::getFile(ArchiveName, Buf, -1, false);
854 if (EC && EC != llvm::errc::no_such_file_or_directory) {
855 errs() << argv[0] << ": error opening '" << ArchiveName
856 << "': " << EC.message() << "!\n";
861 object::Archive Archive(Buf.take(), EC);
864 errs() << argv[0] << ": error loading '" << ArchiveName
865 << "': " << EC.message() << "!\n";
868 performOperation(Operation, &Archive);
872 assert(EC == llvm::errc::no_such_file_or_directory);
874 if (!shouldCreateArchive(Operation)) {
875 failIfError(EC, Twine("error loading '") + ArchiveName + "'");
878 // Produce a warning if we should and we're creating the archive
879 errs() << argv[0] << ": creating " << ArchiveName << "\n";
883 performOperation(Operation, NULL);