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//===- llvm-mt.cpp - Merge .manifest files ---------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===---------------------------------------------------------------------===//
//
// Merge .manifest files. This is intended to be a platform-independent port
// of Microsoft's mt.exe.
//
//===---------------------------------------------------------------------===//
#include "llvm/Option/Arg.h"
#include "llvm/Option/ArgList.h"
#include "llvm/Option/Option.h"
#include "llvm/Support/Error.h"
#include "llvm/Support/FileOutputBuffer.h"
#include "llvm/Support/ManagedStatic.h"
#include "llvm/Support/Path.h"
#include "llvm/Support/PrettyStackTrace.h"
#include "llvm/Support/Process.h"
#include "llvm/Support/Signals.h"
#include "llvm/Support/raw_ostream.h"
#include "llvm/WindowsManifest/WindowsManifestMerger.h"
#include <system_error>
using namespace llvm;
namespace {
enum ID {
OPT_INVALID = 0, // This is not an option ID.
#define OPTION(PREFIX, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \
HELPTEXT, METAVAR, VALUES) \
OPT_##ID,
#include "Opts.inc"
#undef OPTION
};
#define PREFIX(NAME, VALUE) const char *const NAME[] = VALUE;
#include "Opts.inc"
#undef PREFIX
static const opt::OptTable::Info InfoTable[] = {
#define OPTION(PREFIX, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \
HELPTEXT, METAVAR, VALUES) \
{ \
PREFIX, NAME, HELPTEXT, \
METAVAR, OPT_##ID, opt::Option::KIND##Class, \
PARAM, FLAGS, OPT_##GROUP, \
OPT_##ALIAS, ALIASARGS, VALUES},
#include "Opts.inc"
#undef OPTION
};
class CvtResOptTable : public opt::OptTable {
public:
CvtResOptTable() : OptTable(InfoTable, true) {}
};
static ExitOnError ExitOnErr;
} // namespace
LLVM_ATTRIBUTE_NORETURN void reportError(Twine Msg) {
errs() << "llvm-mt error: " << Msg << "\n";
exit(1);
}
static void reportError(StringRef Input, std::error_code EC) {
reportError(Twine(Input) + ": " + EC.message());
}
void error(std::error_code EC) {
if (EC)
reportError(EC.message());
}
void error(Error EC) {
if (EC)
handleAllErrors(std::move(EC), [&](const ErrorInfoBase &EI) {
reportError(EI.message());
});
}
int main(int argc, const char **argv) {
sys::PrintStackTraceOnErrorSignal(argv[0]);
PrettyStackTraceProgram X(argc, argv);
ExitOnErr.setBanner("llvm-mt: ");
SmallVector<const char *, 256> argv_buf;
SpecificBumpPtrAllocator<char> ArgAllocator;
ExitOnErr(errorCodeToError(sys::Process::GetArgumentVector(
argv_buf, makeArrayRef(argv, argc), ArgAllocator)));
llvm_shutdown_obj Y; // Call llvm_shutdown() on exit.
CvtResOptTable T;
unsigned MAI, MAC;
ArrayRef<const char *> ArgsArr = makeArrayRef(argv + 1, argc);
opt::InputArgList InputArgs = T.ParseArgs(ArgsArr, MAI, MAC);
for (auto *Arg : InputArgs.filtered(OPT_INPUT))
reportError(Twine("invalid option ") + Arg->getSpelling());
for (auto &Arg : InputArgs) {
if (Arg->getOption().matches(OPT_unsupported)) {
outs() << "llvm-mt: ignoring unsupported '" << Arg->getOption().getName()
<< "' option\n";
}
}
if (InputArgs.hasArg(OPT_help)) {
T.PrintHelp(outs(), "mt", "Manifest Tool", false);
return 0;
}
std::vector<std::string> InputFiles = InputArgs.getAllArgValues(OPT_manifest);
if (InputFiles.size() == 0) {
reportError("no input file specified");
}
StringRef OutputFile;
if (InputArgs.hasArg(OPT_out)) {
OutputFile = InputArgs.getLastArgValue(OPT_out);
} else if (InputFiles.size() == 1) {
OutputFile = InputFiles[0];
} else {
reportError("no output file specified");
}
windows_manifest::WindowsManifestMerger Merger;
for (const auto &File : InputFiles) {
ErrorOr<std::unique_ptr<MemoryBuffer>> ManifestOrErr =
MemoryBuffer::getFile(File);
if (!ManifestOrErr)
reportError(File, ManifestOrErr.getError());
MemoryBuffer &Manifest = *ManifestOrErr.get();
error(Merger.merge(Manifest));
}
std::unique_ptr<MemoryBuffer> OutputBuffer = Merger.getMergedManifest();
if (!OutputBuffer)
reportError("empty manifest not written");
Expected<std::unique_ptr<FileOutputBuffer>> FileOrErr =
FileOutputBuffer::create(OutputFile, OutputBuffer->getBufferSize());
if (!FileOrErr)
reportError(OutputFile, errorToErrorCode(FileOrErr.takeError()));
std::unique_ptr<FileOutputBuffer> FileBuffer = std::move(*FileOrErr);
std::copy(OutputBuffer->getBufferStart(), OutputBuffer->getBufferEnd(),
FileBuffer->getBufferStart());
error(FileBuffer->commit());
return 0;
}
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