//
//===----------------------------------------------------------------------===//
+#include "llvm/ADT/StringSwitch.h"
+#include "llvm/ADT/Triple.h"
#include "llvm/IR/LLVMContext.h"
#include "llvm/IR/Module.h"
+#include "llvm/LibDriver/LibDriver.h"
#include "llvm/Object/Archive.h"
+#include "llvm/Object/ArchiveWriter.h"
#include "llvm/Object/ObjectFile.h"
#include "llvm/Support/CommandLine.h"
+#include "llvm/Support/Errc.h"
#include "llvm/Support/FileSystem.h"
#include "llvm/Support/Format.h"
+#include "llvm/Support/LineIterator.h"
#include "llvm/Support/ManagedStatic.h"
#include "llvm/Support/MemoryBuffer.h"
+#include "llvm/Support/Path.h"
#include "llvm/Support/PrettyStackTrace.h"
#include "llvm/Support/Signals.h"
+#include "llvm/Support/TargetSelect.h"
#include "llvm/Support/ToolOutputFile.h"
#include "llvm/Support/raw_ostream.h"
#include <algorithm>
// The name this program was invoked as.
static StringRef ToolName;
-static const char *TemporaryOutput;
-static int TmpArchiveFD = -1;
-
-// fail - Show the error message and exit.
+// Show the error message and exit.
LLVM_ATTRIBUTE_NORETURN static void fail(Twine Error) {
outs() << ToolName << ": " << Error << ".\n";
- if (TmpArchiveFD != -1)
- close(TmpArchiveFD);
- if (TemporaryOutput)
- sys::fs::remove(TemporaryOutput);
exit(1);
}
-static void failIfError(error_code EC, Twine Context = "") {
+static void failIfError(std::error_code EC, Twine Context = "") {
if (!EC)
return;
fail(Context + ": " + EC.message());
}
-// Option for compatibility with AIX, not used but must allow it to be present.
-static cl::opt<bool>
-X32Option ("X32_64", cl::Hidden,
- cl::desc("Ignored option for compatibility with AIX"));
+// llvm-ar/llvm-ranlib remaining positional arguments.
+static cl::list<std::string>
+ RestOfArgs(cl::Positional, cl::ZeroOrMore,
+ cl::desc("[relpos] [count] <archive-file> [members]..."));
-// llvm-ar operation code and modifier flags. This must come first.
-static cl::opt<std::string>
-Options(cl::Positional, cl::Required, cl::desc("{operation}[modifiers]..."));
+static cl::opt<bool> MRI("M", cl::desc(""));
-// llvm-ar remaining positional arguments.
-static cl::list<std::string>
-RestOfArgs(cl::Positional, cl::OneOrMore,
- cl::desc("[relpos] [count] <archive-file> [members]..."));
+namespace {
+enum Format { Default, GNU, BSD };
+}
-// MoreHelp - Provide additional help output explaining the operations and
-// modifiers of llvm-ar. This object instructs the CommandLine library
-// to print the text of the constructor when the --help option is given.
+static cl::opt<Format>
+ FormatOpt("format", cl::desc("Archive format to create"),
+ cl::values(clEnumValN(Default, "defalut", "default"),
+ clEnumValN(GNU, "gnu", "gnu"),
+ clEnumValN(BSD, "bsd", "bsd"), clEnumValEnd));
+
+static std::string Options;
+
+// Provide additional help output explaining the operations and modifiers of
+// llvm-ar. This object instructs the CommandLine library to print the text of
+// the constructor when the --help option is given.
static cl::extrahelp MoreHelp(
"\nOPERATIONS:\n"
" d[NsS] - delete file(s) from the archive\n"
" [a] - put file(s) after [relpos]\n"
" [b] - put file(s) before [relpos] (same as [i])\n"
" [i] - put file(s) before [relpos] (same as [b])\n"
- " [N] - use instance [count] of name\n"
" [o] - preserve original dates\n"
" [s] - create an archive index (cf. ranlib)\n"
" [S] - do not build a symbol table\n"
QuickAppend, ///< Quickly append to end of archive
ReplaceOrInsert, ///< Replace or Insert members
DisplayTable, ///< Display the table of contents
- Extract ///< Extract files back to file system
+ Extract, ///< Extract files back to file system
+ CreateSymTab ///< Create a symbol table in an existing archive
};
// Modifiers to follow operation to vary behavior
static bool OnlyUpdate = false; ///< 'u' modifier
static bool Verbose = false; ///< 'v' modifier
static bool Symtab = true; ///< 's' modifier
+static bool Deterministic = true; ///< 'D' and 'U' modifiers
+static bool Thin = false; ///< 'T' modifier
// Relative Positional Argument (for insert/move). This variable holds
// the name of the archive member to which the 'a', 'b' or 'i' modifier
// This variable holds the list of member files to proecess, as given
// on the command line.
-static std::vector<std::string> Members;
+static std::vector<StringRef> Members;
-// show_help - Show the error message, the help message and exit.
+// Show the error message, the help message and exit.
LLVM_ATTRIBUTE_NORETURN static void
show_help(const std::string &msg) {
errs() << ToolName << ": " << msg << "\n\n";
std::exit(1);
}
-// getRelPos - Extract the member filename from the command line for
-// the [relpos] argument associated with a, b, and i modifiers
+// Extract the member filename from the command line for the [relpos] argument
+// associated with a, b, and i modifiers
static void getRelPos() {
if(RestOfArgs.size() == 0)
show_help("Expected [relpos] for a, b, or i modifier");
RestOfArgs.erase(RestOfArgs.begin());
}
-// getArchive - Get the archive file name from the command line
+static void getOptions() {
+ if(RestOfArgs.size() == 0)
+ show_help("Expected options");
+ Options = RestOfArgs[0];
+ RestOfArgs.erase(RestOfArgs.begin());
+}
+
+// Get the archive file name from the command line
static void getArchive() {
if(RestOfArgs.size() == 0)
show_help("An archive name must be specified");
RestOfArgs.erase(RestOfArgs.begin());
}
-// getMembers - Copy over remaining items in RestOfArgs to our Members vector
-// This is just for clarity.
+// Copy over remaining items in RestOfArgs to our Members vector
static void getMembers() {
- if(RestOfArgs.size() > 0)
- Members = std::vector<std::string>(RestOfArgs);
+ for (auto &Arg : RestOfArgs)
+ Members.push_back(Arg);
}
-// parseCommandLine - Parse the command line options as presented and return the
-// operation specified. Process all modifiers and check to make sure that
-// constraints on modifier/operation pairs have not been violated.
+static void runMRIScript();
+
+// Parse the command line options as presented and return the operation
+// specified. Process all modifiers and check to make sure that constraints on
+// modifier/operation pairs have not been violated.
static ArchiveOperation parseCommandLine() {
+ if (MRI) {
+ if (!RestOfArgs.empty())
+ fail("Cannot mix -M and other options");
+ runMRIScript();
+ }
+
+ getOptions();
// Keep track of number of operations. We can only specify one
// per execution.
// Keep track of which operation was requested
ArchiveOperation Operation;
+ bool MaybeJustCreateSymTab = false;
+
for(unsigned i=0; i<Options.size(); ++i) {
switch(Options[i]) {
case 'd': ++NumOperations; Operation = Delete; break;
case 'o': OriginalDates = true; break;
case 's':
Symtab = true;
+ MaybeJustCreateSymTab = true;
break;
case 'S':
Symtab = false;
AddBefore = true;
NumPositional++;
break;
+ case 'D':
+ Deterministic = true;
+ break;
+ case 'U':
+ Deterministic = false;
+ break;
+ case 'T':
+ Thin = true;
+ break;
default:
cl::PrintHelpMessage();
}
// Everything on the command line at this point is a member.
getMembers();
+ if (NumOperations == 0 && MaybeJustCreateSymTab) {
+ NumOperations = 1;
+ Operation = CreateSymTab;
+ if (!Members.empty())
+ show_help("The s operation takes only an archive as argument");
+ }
+
// Perform various checks on the operation/modifier specification
// to make sure we are dealing with a legal request.
if (NumOperations == 0)
// Implements the 'p' operation. This function traverses the archive
// looking for members that match the path list.
-static void doPrint(StringRef Name, object::Archive::child_iterator I) {
+static void doPrint(StringRef Name, const object::Archive::Child &C) {
if (Verbose)
outs() << "Printing " << Name << "\n";
- StringRef Data = I->getBuffer();
+ ErrorOr<StringRef> DataOrErr = C.getBuffer();
+ failIfError(DataOrErr.getError());
+ StringRef Data = *DataOrErr;
outs().write(Data.data(), Data.size());
}
-// putMode - utility function for printing out the file mode when the 't'
-// operation is in verbose mode.
+// Utility function for printing out the file mode when the 't' operation is in
+// verbose mode.
static void printMode(unsigned mode) {
- if (mode & 004)
- outs() << "r";
- else
- outs() << "-";
- if (mode & 002)
- outs() << "w";
- else
- outs() << "-";
- if (mode & 001)
- outs() << "x";
- else
- outs() << "-";
+ outs() << ((mode & 004) ? "r" : "-");
+ outs() << ((mode & 002) ? "w" : "-");
+ outs() << ((mode & 001) ? "x" : "-");
}
// Implement the 't' operation. This function prints out just
// the file names of each of the members. However, if verbose mode is requested
// ('v' modifier) then the file type, permission mode, user, group, size, and
// modification time are also printed.
-static void doDisplayTable(StringRef Name, object::Archive::child_iterator I) {
+static void doDisplayTable(StringRef Name, const object::Archive::Child &C) {
if (Verbose) {
- sys::fs::perms Mode = I->getAccessMode();
+ sys::fs::perms Mode = C.getAccessMode();
printMode((Mode >> 6) & 007);
printMode((Mode >> 3) & 007);
printMode(Mode & 007);
- outs() << ' ' << I->getUID();
- outs() << '/' << I->getGID();
- outs() << ' ' << format("%6llu", I->getSize());
- outs() << ' ' << I->getLastModified().str();
+ outs() << ' ' << C.getUID();
+ outs() << '/' << C.getGID();
+ ErrorOr<uint64_t> Size = C.getSize();
+ failIfError(Size.getError());
+ outs() << ' ' << format("%6llu", Size.get());
+ outs() << ' ' << C.getLastModified().str();
outs() << ' ';
}
outs() << Name << "\n";
// Implement the 'x' operation. This function extracts files back to the file
// system.
-static void doExtract(StringRef Name, object::Archive::child_iterator I) {
+static void doExtract(StringRef Name, const object::Archive::Child &C) {
// Retain the original mode.
- sys::fs::perms Mode = I->getAccessMode();
+ sys::fs::perms Mode = C.getAccessMode();
SmallString<128> Storage = Name;
int FD;
failIfError(
- sys::fs::openFileForWrite(Storage.c_str(), FD, sys::fs::F_Binary, Mode),
+ sys::fs::openFileForWrite(Storage.c_str(), FD, sys::fs::F_None, Mode),
Storage.c_str());
{
raw_fd_ostream file(FD, false);
// Get the data and its length
- StringRef Data = I->getBuffer();
+ StringRef Data = *C.getBuffer();
// Write the data.
file.write(Data.data(), Data.size());
// now.
if (OriginalDates)
failIfError(
- sys::fs::setLastModificationAndAccessTime(FD, I->getLastModified()));
+ sys::fs::setLastModificationAndAccessTime(FD, C.getLastModified()));
if (close(FD))
fail("Could not close the file");
case Move:
case DisplayTable:
case Extract:
+ case CreateSymTab:
return false;
case QuickAppend:
static void performReadOperation(ArchiveOperation Operation,
object::Archive *OldArchive) {
- for (object::Archive::child_iterator I = OldArchive->begin_children(),
- E = OldArchive->end_children();
- I != E; ++I) {
- StringRef Name;
- failIfError(I->getName(Name));
+ if (Operation == Extract && OldArchive->isThin())
+ fail("extracting from a thin archive is not supported");
+
+ bool Filter = !Members.empty();
+ for (auto &ChildOrErr : OldArchive->children()) {
+ failIfError(ChildOrErr.getError());
+ const object::Archive::Child &C = *ChildOrErr;
- if (!Members.empty() &&
- std::find(Members.begin(), Members.end(), Name) == Members.end())
- continue;
+ ErrorOr<StringRef> NameOrErr = C.getName();
+ failIfError(NameOrErr.getError());
+ StringRef Name = NameOrErr.get();
+
+ if (Filter) {
+ auto I = std::find(Members.begin(), Members.end(), Name);
+ if (I == Members.end())
+ continue;
+ Members.erase(I);
+ }
switch (Operation) {
default:
llvm_unreachable("Not a read operation");
case Print:
- doPrint(Name, I);
+ doPrint(Name, C);
break;
case DisplayTable:
- doDisplayTable(Name, I);
+ doDisplayTable(Name, C);
break;
case Extract:
- doExtract(Name, I);
+ doExtract(Name, C);
break;
}
}
+ if (Members.empty())
+ return;
+ for (StringRef Name : Members)
+ errs() << Name << " was not found\n";
+ std::exit(1);
}
-namespace {
-class NewArchiveIterator {
- bool IsNewMember;
- StringRef Name;
- object::Archive::child_iterator OldI;
- std::string NewFilename;
-
-public:
- NewArchiveIterator(object::Archive::child_iterator I, StringRef Name);
- NewArchiveIterator(std::string *I, StringRef Name);
- NewArchiveIterator();
- bool isNewMember() const;
- object::Archive::child_iterator getOld() const;
- const char *getNew() const;
- StringRef getName() const;
-};
-}
-
-NewArchiveIterator::NewArchiveIterator() {}
-
-NewArchiveIterator::NewArchiveIterator(object::Archive::child_iterator I,
- StringRef Name)
- : IsNewMember(false), Name(Name), OldI(I) {}
-
-NewArchiveIterator::NewArchiveIterator(std::string *NewFilename, StringRef Name)
- : IsNewMember(true), Name(Name), NewFilename(*NewFilename) {}
-
-StringRef NewArchiveIterator::getName() const { return Name; }
-
-bool NewArchiveIterator::isNewMember() const { return IsNewMember; }
-
-object::Archive::child_iterator NewArchiveIterator::getOld() const {
- assert(!IsNewMember);
- return OldI;
-}
-
-const char *NewArchiveIterator::getNew() const {
- assert(IsNewMember);
- return NewFilename.c_str();
-}
-
-template <typename T>
-void addMember(std::vector<NewArchiveIterator> &Members, T I, StringRef Name,
- int Pos = -1) {
- NewArchiveIterator NI(I, Name);
+static void addMember(std::vector<NewArchiveIterator> &Members,
+ StringRef FileName, int Pos = -1) {
+ NewArchiveIterator NI(FileName);
if (Pos == -1)
Members.push_back(NI);
else
Members[Pos] = NI;
}
-namespace {
-class HasName {
- StringRef Name;
-
-public:
- HasName(StringRef Name) : Name(Name) {}
- bool operator()(StringRef Path) { return Name == sys::path::filename(Path); }
-};
+static void addMember(std::vector<NewArchiveIterator> &Members,
+ const object::Archive::Child &M, StringRef Name,
+ int Pos = -1) {
+ if (Thin && !M.getParent()->isThin())
+ fail("Cannot convert a regular archive to a thin one");
+ NewArchiveIterator NI(M, Name);
+ if (Pos == -1)
+ Members.push_back(NI);
+ else
+ Members[Pos] = NI;
}
enum InsertAction {
IA_MoveNewMember
};
-static InsertAction
-computeInsertAction(ArchiveOperation Operation,
- object::Archive::child_iterator I, StringRef Name,
- std::vector<std::string>::iterator &Pos) {
+static InsertAction computeInsertAction(ArchiveOperation Operation,
+ const object::Archive::Child &Member,
+ StringRef Name,
+ std::vector<StringRef>::iterator &Pos) {
if (Operation == QuickAppend || Members.empty())
return IA_AddOldMember;
- std::vector<std::string>::iterator MI =
- std::find_if(Members.begin(), Members.end(), HasName(Name));
+ auto MI =
+ std::find_if(Members.begin(), Members.end(), [Name](StringRef Path) {
+ return Name == sys::path::filename(Path);
+ });
if (MI == Members.end())
return IA_AddOldMember;
// We could try to optimize this to a fstat, but it is not a common
// operation.
sys::fs::file_status Status;
- failIfError(sys::fs::status(*MI, Status));
- if (Status.getLastModificationTime() < I->getLastModified()) {
+ failIfError(sys::fs::status(*MI, Status), *MI);
+ if (Status.getLastModificationTime() < Member.getLastModified()) {
if (PosName.empty())
return IA_AddOldMember;
return IA_MoveOldMember;
int InsertPos = -1;
StringRef PosName = sys::path::filename(RelPos);
if (OldArchive) {
- for (object::Archive::child_iterator I = OldArchive->begin_children(),
- E = OldArchive->end_children();
- I != E; ++I) {
+ for (auto &ChildOrErr : OldArchive->children()) {
+ failIfError(ChildOrErr.getError());
+ auto &Child = ChildOrErr.get();
int Pos = Ret.size();
- StringRef Name;
- failIfError(I->getName(Name));
+ ErrorOr<StringRef> NameOrErr = Child.getName();
+ failIfError(NameOrErr.getError());
+ StringRef Name = NameOrErr.get();
if (Name == PosName) {
assert(AddAfter || AddBefore);
if (AddBefore)
InsertPos = Pos + 1;
}
- std::vector<std::string>::iterator MemberI = Members.end();
- InsertAction Action = computeInsertAction(Operation, I, Name, MemberI);
+ std::vector<StringRef>::iterator MemberI = Members.end();
+ InsertAction Action =
+ computeInsertAction(Operation, Child, Name, MemberI);
switch (Action) {
case IA_AddOldMember:
- addMember(Ret, I, Name);
+ addMember(Ret, Child, Name);
break;
case IA_AddNewMeber:
- addMember(Ret, &*MemberI, Name);
+ addMember(Ret, *MemberI);
break;
case IA_Delete:
break;
case IA_MoveOldMember:
- addMember(Moved, I, Name);
+ addMember(Moved, Child, Name);
break;
case IA_MoveNewMember:
- addMember(Moved, &*MemberI, Name);
+ addMember(Moved, *MemberI);
break;
}
if (MemberI != Members.end())
assert(unsigned(InsertPos) <= Ret.size());
Ret.insert(Ret.begin() + InsertPos, Moved.begin(), Moved.end());
- Ret.insert(Ret.begin() + InsertPos, Members.size(), NewArchiveIterator());
+ Ret.insert(Ret.begin() + InsertPos, Members.size(), NewArchiveIterator(""));
int Pos = InsertPos;
- for (std::vector<std::string>::iterator I = Members.begin(),
- E = Members.end();
- I != E; ++I, ++Pos) {
- StringRef Name = sys::path::filename(*I);
- addMember(Ret, &*I, Name, Pos);
+ for (auto &Member : Members) {
+ addMember(Ret, Member, Pos);
+ ++Pos;
}
return Ret;
}
-template <typename T>
-static void printWithSpacePadding(raw_ostream &OS, T Data, unsigned Size) {
- uint64_t OldPos = OS.tell();
- OS << Data;
- unsigned SizeSoFar = OS.tell() - OldPos;
- assert(Size >= SizeSoFar && "Data doesn't fit in Size");
- unsigned Remaining = Size - SizeSoFar;
- for (unsigned I = 0; I < Remaining; ++I)
- OS << ' ';
-}
-
-static void print32BE(raw_fd_ostream &Out, unsigned Val) {
- for (int I = 3; I >= 0; --I) {
- char V = (Val >> (8 * I)) & 0xff;
- Out << V;
+static void
+performWriteOperation(ArchiveOperation Operation, object::Archive *OldArchive,
+ std::vector<NewArchiveIterator> *NewMembersP) {
+ object::Archive::Kind Kind;
+ switch (FormatOpt) {
+ case Default: {
+ Triple T(sys::getProcessTriple());
+ if (T.isOSDarwin())
+ Kind = object::Archive::K_BSD;
+ else
+ Kind = object::Archive::K_GNU;
+ break;
}
-}
-
-static void printRestOfMemberHeader(raw_fd_ostream &Out,
- const sys::TimeValue &ModTime, unsigned UID,
- unsigned GID, unsigned Perms,
- unsigned Size) {
- printWithSpacePadding(Out, ModTime.toEpochTime(), 12);
- printWithSpacePadding(Out, UID, 6);
- printWithSpacePadding(Out, GID, 6);
- printWithSpacePadding(Out, format("%o", Perms), 8);
- printWithSpacePadding(Out, Size, 10);
- Out << "`\n";
-}
-
-static void printMemberHeader(raw_fd_ostream &Out, StringRef Name,
- const sys::TimeValue &ModTime, unsigned UID,
- unsigned GID, unsigned Perms, unsigned Size) {
- printWithSpacePadding(Out, Twine(Name) + "/", 16);
- printRestOfMemberHeader(Out, ModTime, UID, GID, Perms, Size);
-}
-
-static void printMemberHeader(raw_fd_ostream &Out, unsigned NameOffset,
- const sys::TimeValue &ModTime, unsigned UID,
- unsigned GID, unsigned Perms, unsigned Size) {
- Out << '/';
- printWithSpacePadding(Out, NameOffset, 15);
- printRestOfMemberHeader(Out, ModTime, UID, GID, Perms, Size);
-}
-
-static void writeStringTable(raw_fd_ostream &Out,
- ArrayRef<NewArchiveIterator> Members,
- std::vector<unsigned> &StringMapIndexes) {
- unsigned StartOffset = 0;
- for (ArrayRef<NewArchiveIterator>::iterator I = Members.begin(),
- E = Members.end();
- I != E; ++I) {
- StringRef Name = I->getName();
- if (Name.size() < 16)
- continue;
- if (StartOffset == 0) {
- printWithSpacePadding(Out, "//", 58);
- Out << "`\n";
- StartOffset = Out.tell();
- }
- StringMapIndexes.push_back(Out.tell() - StartOffset);
- Out << Name << "/\n";
+ case GNU:
+ Kind = object::Archive::K_GNU;
+ break;
+ case BSD:
+ Kind = object::Archive::K_BSD;
+ break;
}
- if (StartOffset == 0)
+ if (NewMembersP) {
+ std::pair<StringRef, std::error_code> Result = writeArchive(
+ ArchiveName, *NewMembersP, Symtab, Kind, Deterministic, Thin);
+ failIfError(Result.second, Result.first);
return;
- if (Out.tell() % 2)
- Out << '\n';
- int Pos = Out.tell();
- Out.seek(StartOffset - 12);
- printWithSpacePadding(Out, Pos - StartOffset, 10);
- Out.seek(Pos);
-}
-
-static void writeSymbolTable(
- raw_fd_ostream &Out, ArrayRef<NewArchiveIterator> Members,
- std::vector<std::pair<unsigned, unsigned> > &MemberOffsetRefs) {
- unsigned StartOffset = 0;
- unsigned MemberNum = 0;
- std::vector<StringRef> SymNames;
- std::vector<OwningPtr<object::ObjectFile> > DeleteIt;
- for (ArrayRef<NewArchiveIterator>::iterator I = Members.begin(),
- E = Members.end();
- I != E; ++I, ++MemberNum) {
- object::ObjectFile *Obj;
- if (I->isNewMember()) {
- const char *Filename = I->getNew();
- Obj = object::ObjectFile::createObjectFile(Filename);
- } else {
- object::Archive::child_iterator OldMember = I->getOld();
- OwningPtr<object::Binary> Binary;
- error_code EC = OldMember->getAsBinary(Binary);
- if (EC) { // FIXME: check only for "not an object file" errors.
- Obj = NULL;
- } else {
- Obj = dyn_cast<object::ObjectFile>(Binary.get());
- if (Obj)
- Binary.take();
- }
- }
- if (!Obj)
- continue;
- DeleteIt.push_back(OwningPtr<object::ObjectFile>(Obj));
- if (!StartOffset) {
- printMemberHeader(Out, "", sys::TimeValue::now(), 0, 0, 0, 0);
- StartOffset = Out.tell();
- print32BE(Out, 0);
- }
-
- error_code Err;
- for (object::symbol_iterator I = Obj->begin_symbols(),
- E = Obj->end_symbols();
- I != E; I.increment(Err), failIfError(Err)) {
- uint32_t Symflags;
- failIfError(I->getFlags(Symflags));
- if (Symflags & object::SymbolRef::SF_FormatSpecific)
- continue;
- if (!(Symflags & object::SymbolRef::SF_Global))
- continue;
- if (Symflags & object::SymbolRef::SF_Undefined)
- continue;
- StringRef Name;
- failIfError(I->getName(Name));
- SymNames.push_back(Name);
- MemberOffsetRefs.push_back(std::make_pair(Out.tell(), MemberNum));
- print32BE(Out, 0);
- }
- }
- for (std::vector<StringRef>::iterator I = SymNames.begin(),
- E = SymNames.end();
- I != E; ++I) {
- Out << *I;
- Out << '\0';
}
-
- if (StartOffset == 0)
- return;
-
- if (Out.tell() % 2)
- Out << '\0';
-
- unsigned Pos = Out.tell();
- Out.seek(StartOffset - 12);
- printWithSpacePadding(Out, Pos - StartOffset, 10);
- Out.seek(StartOffset);
- print32BE(Out, SymNames.size());
- Out.seek(Pos);
-}
-
-static void performWriteOperation(ArchiveOperation Operation,
- object::Archive *OldArchive) {
- SmallString<128> TmpArchive;
- failIfError(sys::fs::createUniqueFile(ArchiveName + ".temp-archive-%%%%%%%.a",
- TmpArchiveFD, TmpArchive));
-
- TemporaryOutput = TmpArchive.c_str();
- tool_output_file Output(TemporaryOutput, TmpArchiveFD);
- raw_fd_ostream &Out = Output.os();
- Out << "!<arch>\n";
-
std::vector<NewArchiveIterator> NewMembers =
computeNewArchiveMembers(Operation, OldArchive);
+ auto Result =
+ writeArchive(ArchiveName, NewMembers, Symtab, Kind, Deterministic, Thin);
+ failIfError(Result.second, Result.first);
+}
- std::vector<std::pair<unsigned, unsigned> > MemberOffsetRefs;
-
- if (Symtab) {
- writeSymbolTable(Out, NewMembers, MemberOffsetRefs);
- }
-
- std::vector<unsigned> StringMapIndexes;
- writeStringTable(Out, NewMembers, StringMapIndexes);
-
- std::vector<std::pair<unsigned, unsigned> >::iterator MemberRefsI =
- MemberOffsetRefs.begin();
-
- unsigned MemberNum = 0;
- unsigned LongNameMemberNum = 0;
- for (std::vector<NewArchiveIterator>::iterator I = NewMembers.begin(),
- E = NewMembers.end();
- I != E; ++I, ++MemberNum) {
-
- unsigned Pos = Out.tell();
- while (MemberRefsI != MemberOffsetRefs.end() &&
- MemberRefsI->second == MemberNum) {
- Out.seek(MemberRefsI->first);
- print32BE(Out, Pos);
- ++MemberRefsI;
- }
- Out.seek(Pos);
-
- if (I->isNewMember()) {
- const char *FileName = I->getNew();
-
- int FD;
- failIfError(sys::fs::openFileForRead(FileName, FD), FileName);
-
- sys::fs::file_status Status;
- failIfError(sys::fs::status(FD, Status), FileName);
-
- OwningPtr<MemoryBuffer> File;
- failIfError(
- MemoryBuffer::getOpenFile(FD, FileName, File, Status.getSize()),
- FileName);
-
- StringRef Name = sys::path::filename(FileName);
- if (Name.size() < 16)
- printMemberHeader(Out, Name, Status.getLastModificationTime(),
- Status.getUser(), Status.getGroup(),
- Status.permissions(), Status.getSize());
- else
- printMemberHeader(Out, StringMapIndexes[LongNameMemberNum++],
- Status.getLastModificationTime(), Status.getUser(),
- Status.getGroup(), Status.permissions(),
- Status.getSize());
- Out << File->getBuffer();
- } else {
- object::Archive::child_iterator OldMember = I->getOld();
- StringRef Name = I->getName();
-
- if (Name.size() < 16)
- printMemberHeader(Out, Name, OldMember->getLastModified(),
- OldMember->getUID(), OldMember->getGID(),
- OldMember->getAccessMode(), OldMember->getSize());
- else
- printMemberHeader(Out, StringMapIndexes[LongNameMemberNum++],
- OldMember->getLastModified(), OldMember->getUID(),
- OldMember->getGID(), OldMember->getAccessMode(),
- OldMember->getSize());
- Out << OldMember->getBuffer();
- }
+static void createSymbolTable(object::Archive *OldArchive) {
+ // When an archive is created or modified, if the s option is given, the
+ // resulting archive will have a current symbol table. If the S option
+ // is given, it will have no symbol table.
+ // In summary, we only need to update the symbol table if we have none.
+ // This is actually very common because of broken build systems that think
+ // they have to run ranlib.
+ if (OldArchive->hasSymbolTable())
+ return;
- if (Out.tell() % 2)
- Out << '\n';
- }
- Output.keep();
- Out.close();
- sys::fs::rename(TemporaryOutput, ArchiveName);
- TemporaryOutput = NULL;
+ performWriteOperation(CreateSymTab, OldArchive, nullptr);
}
static void performOperation(ArchiveOperation Operation,
- object::Archive *OldArchive) {
+ object::Archive *OldArchive,
+ std::vector<NewArchiveIterator> *NewMembers) {
switch (Operation) {
case Print:
case DisplayTable:
case Move:
case QuickAppend:
case ReplaceOrInsert:
- performWriteOperation(Operation, OldArchive);
+ performWriteOperation(Operation, OldArchive, NewMembers);
+ return;
+ case CreateSymTab:
+ createSymbolTable(OldArchive);
return;
}
llvm_unreachable("Unknown operation.");
}
-// main - main program for llvm-ar .. see comments in the code
-int main(int argc, char **argv) {
- ToolName = argv[0];
- // Print a stack trace if we signal out.
- sys::PrintStackTraceOnErrorSignal();
- PrettyStackTraceProgram X(argc, argv);
- llvm_shutdown_obj Y; // Call llvm_shutdown() on exit.
-
- // Have the command line options parsed and handle things
- // like --help and --version.
- cl::ParseCommandLineOptions(argc, argv,
- "LLVM Archiver (llvm-ar)\n\n"
- " This program archives bitcode files into single libraries\n"
- );
-
- // Do our own parsing of the command line because the CommandLine utility
- // can't handle the grouped positional parameters without a dash.
- ArchiveOperation Operation = parseCommandLine();
-
+static int performOperation(ArchiveOperation Operation,
+ std::vector<NewArchiveIterator> *NewMembers) {
// Create or open the archive object.
- OwningPtr<MemoryBuffer> Buf;
- error_code EC = MemoryBuffer::getFile(ArchiveName, Buf, -1, false);
- if (EC && EC != llvm::errc::no_such_file_or_directory) {
- errs() << argv[0] << ": error opening '" << ArchiveName
- << "': " << EC.message() << "!\n";
- return 1;
- }
+ ErrorOr<std::unique_ptr<MemoryBuffer>> Buf =
+ MemoryBuffer::getFile(ArchiveName, -1, false);
+ std::error_code EC = Buf.getError();
+ if (EC && EC != errc::no_such_file_or_directory)
+ fail("error opening '" + ArchiveName + "': " + EC.message() + "!");
if (!EC) {
- object::Archive Archive(Buf.take(), EC);
-
- if (EC) {
- errs() << argv[0] << ": error loading '" << ArchiveName
- << "': " << EC.message() << "!\n";
- return 1;
- }
- performOperation(Operation, &Archive);
+ object::Archive Archive(Buf.get()->getMemBufferRef(), EC);
+ failIfError(EC,
+ "error loading '" + ArchiveName + "': " + EC.message() + "!");
+ performOperation(Operation, &Archive, NewMembers);
return 0;
}
- assert(EC == llvm::errc::no_such_file_or_directory);
+ assert(EC == errc::no_such_file_or_directory);
if (!shouldCreateArchive(Operation)) {
failIfError(EC, Twine("error loading '") + ArchiveName + "'");
} else {
if (!Create) {
// Produce a warning if we should and we're creating the archive
- errs() << argv[0] << ": creating " << ArchiveName << "\n";
+ errs() << ToolName << ": creating " << ArchiveName << "\n";
}
}
- performOperation(Operation, NULL);
+ performOperation(Operation, nullptr, NewMembers);
return 0;
}
+
+static void runMRIScript() {
+ enum class MRICommand { AddLib, AddMod, Create, Save, End, Invalid };
+
+ ErrorOr<std::unique_ptr<MemoryBuffer>> Buf = MemoryBuffer::getSTDIN();
+ failIfError(Buf.getError());
+ const MemoryBuffer &Ref = *Buf.get();
+ bool Saved = false;
+ std::vector<NewArchiveIterator> NewMembers;
+ std::vector<std::unique_ptr<MemoryBuffer>> ArchiveBuffers;
+ std::vector<std::unique_ptr<object::Archive>> Archives;
+
+ for (line_iterator I(Ref, /*SkipBlanks*/ true, ';'), E; I != E; ++I) {
+ StringRef Line = *I;
+ StringRef CommandStr, Rest;
+ std::tie(CommandStr, Rest) = Line.split(' ');
+ Rest = Rest.trim();
+ if (!Rest.empty() && Rest.front() == '"' && Rest.back() == '"')
+ Rest = Rest.drop_front().drop_back();
+ auto Command = StringSwitch<MRICommand>(CommandStr.lower())
+ .Case("addlib", MRICommand::AddLib)
+ .Case("addmod", MRICommand::AddMod)
+ .Case("create", MRICommand::Create)
+ .Case("save", MRICommand::Save)
+ .Case("end", MRICommand::End)
+ .Default(MRICommand::Invalid);
+
+ switch (Command) {
+ case MRICommand::AddLib: {
+ auto BufOrErr = MemoryBuffer::getFile(Rest, -1, false);
+ failIfError(BufOrErr.getError(), "Could not open library");
+ ArchiveBuffers.push_back(std::move(*BufOrErr));
+ auto LibOrErr =
+ object::Archive::create(ArchiveBuffers.back()->getMemBufferRef());
+ failIfError(LibOrErr.getError(), "Could not parse library");
+ Archives.push_back(std::move(*LibOrErr));
+ object::Archive &Lib = *Archives.back();
+ for (auto &MemberOrErr : Lib.children()) {
+ failIfError(MemberOrErr.getError());
+ auto &Member = MemberOrErr.get();
+ ErrorOr<StringRef> NameOrErr = Member.getName();
+ failIfError(NameOrErr.getError());
+ addMember(NewMembers, Member, *NameOrErr);
+ }
+ break;
+ }
+ case MRICommand::AddMod:
+ addMember(NewMembers, Rest);
+ break;
+ case MRICommand::Create:
+ Create = true;
+ if (!ArchiveName.empty())
+ fail("Editing multiple archives not supported");
+ if (Saved)
+ fail("File already saved");
+ ArchiveName = Rest;
+ break;
+ case MRICommand::Save:
+ Saved = true;
+ break;
+ case MRICommand::End:
+ break;
+ case MRICommand::Invalid:
+ fail("Unknown command: " + CommandStr);
+ }
+ }
+
+ // Nothing to do if not saved.
+ if (Saved)
+ performOperation(ReplaceOrInsert, &NewMembers);
+ exit(0);
+}
+
+static int ar_main() {
+ // Do our own parsing of the command line because the CommandLine utility
+ // can't handle the grouped positional parameters without a dash.
+ ArchiveOperation Operation = parseCommandLine();
+ return performOperation(Operation, nullptr);
+}
+
+static int ranlib_main() {
+ if (RestOfArgs.size() != 1)
+ fail(ToolName + "takes just one archive as argument");
+ ArchiveName = RestOfArgs[0];
+ return performOperation(CreateSymTab, nullptr);
+}
+
+int main(int argc, char **argv) {
+ ToolName = argv[0];
+ // Print a stack trace if we signal out.
+ sys::PrintStackTraceOnErrorSignal();
+ PrettyStackTraceProgram X(argc, argv);
+ llvm_shutdown_obj Y; // Call llvm_shutdown() on exit.
+
+ llvm::InitializeAllTargetInfos();
+ llvm::InitializeAllTargetMCs();
+ llvm::InitializeAllAsmParsers();
+
+ StringRef Stem = sys::path::stem(ToolName);
+ if (Stem.find("ranlib") == StringRef::npos &&
+ Stem.find("lib") != StringRef::npos)
+ return libDriverMain(makeArrayRef(argv, argc));
+
+ // Have the command line options parsed and handle things
+ // like --help and --version.
+ cl::ParseCommandLineOptions(argc, argv,
+ "LLVM Archiver (llvm-ar)\n\n"
+ " This program archives bitcode files into single libraries\n"
+ );
+
+ if (Stem.find("ranlib") != StringRef::npos)
+ return ranlib_main();
+ if (Stem.find("ar") != StringRef::npos)
+ return ar_main();
+ fail("Not ranlib, ar or lib!");
+}
projects / oota-llvm.git / blobdiff