//
//===----------------------------------------------------------------------===//
+#include "llvm/ADT/StringSwitch.h"
#include "llvm/IR/LLVMContext.h"
#include "llvm/IR/Module.h"
#include "llvm/Object/Archive.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/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>
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)
// llvm-ar/llvm-ranlib remaining positional arguments.
static cl::list<std::string>
-RestOfArgs(cl::Positional, cl::OneOrMore,
- cl::desc("[relpos] [count] <archive-file> [members]..."));
+ RestOfArgs(cl::Positional, cl::ZeroOrMore,
+ cl::desc("[relpos] [count] <archive-file> [members]..."));
+
+static cl::opt<bool> MRI("M", cl::desc(""));
std::string Options;
-// 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.
+// 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"
// 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
+// 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);
+}
+
+namespace {
+enum class MRICommand { AddMod, Create, Save, End, Invalid };
+}
+
+static std::vector<std::string> MRIMembers;
+static ArchiveOperation parseMRIScript() {
+ ErrorOr<std::unique_ptr<MemoryBuffer>> Buf = MemoryBuffer::getSTDIN();
+ failIfError(Buf.getError());
+ const MemoryBuffer &Ref = *Buf.get();
+ bool Saved = false;
+
+ for (line_iterator I(Ref, /*SkipBlanks*/ true, ';'), E; I != E; ++I) {
+ StringRef Line = *I;
+ StringRef CommandStr, Rest;
+ std::tie(CommandStr, Rest) = Line.split(' ');
+ auto Command = StringSwitch<MRICommand>(CommandStr.lower())
+ .Case("addmod", MRICommand::AddMod)
+ .Case("create", MRICommand::Create)
+ .Case("save", MRICommand::Save)
+ .Case("end", MRICommand::End)
+ .Default(MRICommand::Invalid);
+
+ switch (Command) {
+ case MRICommand::AddMod:
+ MRIMembers.push_back(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)
+ exit(0);
+
+ for (auto &M : MRIMembers)
+ Members.push_back(M);
+
+ return ReplaceOrInsert;
}
-// 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.
+// 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");
+ return parseMRIScript();
+ }
+
getOptions();
// Keep track of number of operations. We can only specify one
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";
object::Archive::child_iterator OldI;
- std::string NewFilename;
+ StringRef NewFilename;
mutable int NewFD;
mutable sys::fs::file_status NewStatus;
public:
NewArchiveIterator(object::Archive::child_iterator I, StringRef Name);
- NewArchiveIterator(std::string *I, StringRef Name);
+ NewArchiveIterator(StringRef I, StringRef Name);
NewArchiveIterator();
bool isNewMember() const;
StringRef getName() const;
object::Archive::child_iterator getOld() const;
- const char *getNew() const;
+ StringRef getNew() const;
int getFD() const;
const sys::fs::file_status &getStatus() const;
};
StringRef Name)
: IsNewMember(false), Name(Name), OldI(I) {}
-NewArchiveIterator::NewArchiveIterator(std::string *NewFilename, StringRef Name)
- : IsNewMember(true), Name(Name), NewFilename(*NewFilename), NewFD(-1) {}
+NewArchiveIterator::NewArchiveIterator(StringRef NewFilename, StringRef Name)
+ : IsNewMember(true), Name(Name), NewFilename(NewFilename), NewFD(-1) {}
StringRef NewArchiveIterator::getName() const { return Name; }
return OldI;
}
-const char *NewArchiveIterator::getNew() const {
+StringRef NewArchiveIterator::getNew() const {
assert(IsNewMember);
- return NewFilename.c_str();
+ return NewFilename;
}
int NewArchiveIterator::getFD() const {
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,
+ object::Archive::child_iterator I,
+ 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(),
- [Name](StringRef Path) { return Name == sys::path::filename(Path); });
+ 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;
InsertPos = Pos + 1;
}
- std::vector<std::string>::iterator MemberI = Members.end();
+ std::vector<StringRef>::iterator MemberI = Members.end();
InsertAction Action = computeInsertAction(Operation, I, Name, MemberI);
switch (Action) {
case IA_AddOldMember:
addMember(Ret, I, Name);
break;
case IA_AddNewMeber:
- addMember(Ret, &*MemberI, Name);
+ addMember(Ret, *MemberI, Name);
break;
case IA_Delete:
break;
addMember(Moved, I, Name);
break;
case IA_MoveNewMember:
- addMember(Moved, &*MemberI, Name);
+ addMember(Moved, *MemberI, Name);
break;
}
if (MemberI != Members.end())
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) {
+ StringRef Name = sys::path::filename(Member);
+ addMember(Ret, Member, Name, Pos);
+ ++Pos;
}
return Ret;
static void
writeSymbolTable(raw_fd_ostream &Out, ArrayRef<NewArchiveIterator> Members,
- MutableArrayRef<std::unique_ptr<MemoryBuffer>> Buffers,
+ ArrayRef<MemoryBufferRef> Buffers,
std::vector<std::pair<unsigned, unsigned>> &MemberOffsetRefs) {
unsigned StartOffset = 0;
unsigned MemberNum = 0;
for (ArrayRef<NewArchiveIterator>::iterator I = Members.begin(),
E = Members.end();
I != E; ++I, ++MemberNum) {
- std::unique_ptr<MemoryBuffer> &MemberBuffer = Buffers[MemberNum];
- ErrorOr<object::SymbolicFile *> ObjOrErr =
+ MemoryBufferRef MemberBuffer = Buffers[MemberNum];
+ ErrorOr<std::unique_ptr<object::SymbolicFile>> ObjOrErr =
object::SymbolicFile::createSymbolicFile(
MemberBuffer, sys::fs::file_magic::unknown, &Context);
if (!ObjOrErr)
continue; // FIXME: check only for "not an object file" errors.
- std::unique_ptr<object::SymbolicFile> Obj(ObjOrErr.get());
+ object::SymbolicFile &Obj = *ObjOrErr.get();
if (!StartOffset) {
printMemberHeader(Out, "", sys::TimeValue::now(), 0, 0, 0, 0);
print32BE(Out, 0);
}
- for (const object::BasicSymbolRef &S : Obj->symbols()) {
+ for (const object::BasicSymbolRef &S : Obj.symbols()) {
uint32_t Symflags = S.getFlags();
if (Symflags & object::SymbolRef::SF_FormatSpecific)
continue;
MemberOffsetRefs.push_back(std::make_pair(Out.tell(), MemberNum));
print32BE(Out, 0);
}
- MemberBuffer.reset(Obj->releaseBuffer());
}
Out << NameOS.str();
std::vector<std::pair<unsigned, unsigned> > MemberOffsetRefs;
- std::vector<std::unique_ptr<MemoryBuffer>> MemberBuffers;
- MemberBuffers.resize(NewMembers.size());
+ std::vector<std::unique_ptr<MemoryBuffer>> Buffers;
+ std::vector<MemoryBufferRef> Members;
for (unsigned I = 0, N = NewMembers.size(); I < N; ++I) {
- std::unique_ptr<MemoryBuffer> MemberBuffer;
NewArchiveIterator &Member = NewMembers[I];
+ MemoryBufferRef MemberRef;
if (Member.isNewMember()) {
- const char *Filename = Member.getNew();
+ StringRef Filename = Member.getNew();
int FD = Member.getFD();
const sys::fs::file_status &Status = Member.getStatus();
- failIfError(MemoryBuffer::getOpenFile(FD, Filename, MemberBuffer,
- Status.getSize(), false),
- Filename);
-
+ ErrorOr<std::unique_ptr<MemoryBuffer>> MemberBufferOrErr =
+ MemoryBuffer::getOpenFile(FD, Filename, Status.getSize(), false);
+ failIfError(MemberBufferOrErr.getError(), Filename);
+ Buffers.push_back(std::move(MemberBufferOrErr.get()));
+ MemberRef = Buffers.back()->getMemBufferRef();
} else {
object::Archive::child_iterator OldMember = Member.getOld();
- ErrorOr<std::unique_ptr<MemoryBuffer>> MemberBufferOrErr =
- OldMember->getMemoryBuffer();
+ ErrorOr<MemoryBufferRef> MemberBufferOrErr =
+ OldMember->getMemoryBufferRef();
failIfError(MemberBufferOrErr.getError());
- MemberBuffer = std::move(MemberBufferOrErr.get());
+ MemberRef = MemberBufferOrErr.get();
}
- MemberBuffers[I].reset(MemberBuffer.release());
+ Members.push_back(MemberRef);
}
if (Symtab) {
- writeSymbolTable(Out, NewMembers, MemberBuffers, MemberOffsetRefs);
+ writeSymbolTable(Out, NewMembers, Members, MemberOffsetRefs);
}
std::vector<unsigned> StringMapIndexes;
}
Out.seek(Pos);
- const MemoryBuffer *File = MemberBuffers[MemberNum].get();
+ MemoryBufferRef File = Members[MemberNum];
if (I->isNewMember()) {
- const char *FileName = I->getNew();
+ StringRef FileName = I->getNew();
const sys::fs::file_status &Status = I->getStatus();
StringRef Name = sys::path::filename(FileName);
OldMember->getSize());
}
- Out << File->getBuffer();
+ Out << File.getBuffer();
if (Out.tell() % 2)
Out << '\n';
llvm_unreachable("Unknown operation.");
}
-static int ar_main(char **argv);
-static int ranlib_main();
-
-// 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"
- );
-
- StringRef Stem = sys::path::stem(ToolName);
- if (Stem.find("ar") != StringRef::npos)
- return ar_main(argv);
- if (Stem.find("ranlib") != StringRef::npos)
- return ranlib_main();
- fail("Not ranlib or ar!");
-}
-
-static int performOperation(ArchiveOperation Operation);
-
-int ranlib_main() {
- if (RestOfArgs.size() != 1)
- fail(ToolName + "takes just one archive as argument");
- ArchiveName = RestOfArgs[0];
- return performOperation(CreateSymTab);
-}
-
-int ar_main(char **argv) {
- // 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);
-}
-
static int performOperation(ArchiveOperation Operation) {
// Create or open the archive object.
- std::unique_ptr<MemoryBuffer> Buf;
- std::error_code EC = MemoryBuffer::getFile(ArchiveName, Buf, -1, false);
+ 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) {
errs() << ToolName << ": error opening '" << ArchiveName
<< "': " << EC.message() << "!\n";
}
if (!EC) {
- object::Archive Archive(std::move(Buf), EC);
+ object::Archive Archive(Buf.get()->getMemBufferRef(), EC);
if (EC) {
errs() << ToolName << ": error loading '" << ArchiveName
performOperation(Operation, nullptr);
return 0;
}
+
+int ar_main(char **argv) {
+ // 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);
+}
+
+int ranlib_main() {
+ if (RestOfArgs.size() != 1)
+ fail(ToolName + "takes just one archive as argument");
+ ArchiveName = RestOfArgs[0];
+ return performOperation(CreateSymTab);
+}
+
+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"
+ );
+
+ llvm::InitializeAllTargetInfos();
+ llvm::InitializeAllTargetMCs();
+ llvm::InitializeAllAsmParsers();
+
+ StringRef Stem = sys::path::stem(ToolName);
+ if (Stem.find("ar") != StringRef::npos)
+ return ar_main(argv);
+ if (Stem.find("ranlib") != StringRef::npos)
+ return ranlib_main();
+ fail("Not ranlib or ar!");
+}
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