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//===-- llvm-rc.cpp - Compile .rc scripts into .res -------------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// Compile .rc scripts into .res files. This is intended to be a
// platform-independent port of Microsoft's rc.exe tool.
//
//===----------------------------------------------------------------------===//
#include "ResourceFileWriter.h"
#include "ResourceScriptCppFilter.h"
#include "ResourceScriptParser.h"
#include "ResourceScriptStmt.h"
#include "ResourceScriptToken.h"
#include "llvm/Option/Arg.h"
#include "llvm/Option/ArgList.h"
#include "llvm/Support/Error.h"
#include "llvm/Support/FileSystem.h"
#include "llvm/Support/InitLLVM.h"
#include "llvm/Support/ManagedStatic.h"
#include "llvm/Support/MemoryBuffer.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 <algorithm>
#include <system_error>
using namespace llvm;
using namespace llvm::rc;
namespace {
// Input options tables.
enum ID {
OPT_INVALID = 0, // This is not a correct 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 RcOptTable : public opt::OptTable {
public:
RcOptTable() : OptTable(InfoTable, /* IgnoreCase = */ true) {}
};
static ExitOnError ExitOnErr;
LLVM_ATTRIBUTE_NORETURN static void fatalError(const Twine &Message) {
errs() << Message << "\n";
exit(1);
}
} // anonymous namespace
int main(int Argc, const char **Argv) {
InitLLVM X(Argc, Argv);
ExitOnErr.setBanner("llvm-rc: ");
RcOptTable T;
unsigned MAI, MAC;
const char **DashDash = std::find_if(
Argv + 1, Argv + Argc, [](StringRef Str) { return Str == "--"; });
ArrayRef<const char *> ArgsArr = makeArrayRef(Argv + 1, DashDash);
opt::InputArgList InputArgs = T.ParseArgs(ArgsArr, MAI, MAC);
// The tool prints nothing when invoked with no command-line arguments.
if (InputArgs.hasArg(OPT_help)) {
T.PrintHelp(outs(), "rc [options] file...", "Resource Converter", false);
return 0;
}
const bool BeVerbose = InputArgs.hasArg(OPT_verbose);
std::vector<std::string> InArgsInfo = InputArgs.getAllArgValues(OPT_INPUT);
if (DashDash != Argv + Argc)
InArgsInfo.insert(InArgsInfo.end(), DashDash + 1, Argv + Argc);
if (InArgsInfo.size() != 1) {
fatalError("Exactly one input file should be provided.");
}
// Read and tokenize the input file.
ErrorOr<std::unique_ptr<MemoryBuffer>> File =
MemoryBuffer::getFile(InArgsInfo[0]);
if (!File) {
fatalError("Error opening file '" + Twine(InArgsInfo[0]) +
"': " + File.getError().message());
}
std::unique_ptr<MemoryBuffer> FileContents = std::move(*File);
StringRef Contents = FileContents->getBuffer();
std::string FilteredContents = filterCppOutput(Contents);
std::vector<RCToken> Tokens = ExitOnErr(tokenizeRC(FilteredContents));
if (BeVerbose) {
const Twine TokenNames[] = {
#define TOKEN(Name) #Name,
#define SHORT_TOKEN(Name, Ch) #Name,
#include "ResourceScriptTokenList.def"
};
for (const RCToken &Token : Tokens) {
outs() << TokenNames[static_cast<int>(Token.kind())] << ": "
<< Token.value();
if (Token.kind() == RCToken::Kind::Int)
outs() << "; int value = " << Token.intValue();
outs() << "\n";
}
}
WriterParams Params;
SmallString<128> InputFile(InArgsInfo[0]);
llvm::sys::fs::make_absolute(InputFile);
Params.InputFilePath = InputFile;
Params.Include = InputArgs.getAllArgValues(OPT_includepath);
Params.NoInclude = InputArgs.getAllArgValues(OPT_noinclude);
if (InputArgs.hasArg(OPT_codepage)) {
if (InputArgs.getLastArgValue(OPT_codepage)
.getAsInteger(10, Params.CodePage))
fatalError("Invalid code page: " +
InputArgs.getLastArgValue(OPT_codepage));
switch (Params.CodePage) {
case CpAcp:
case CpWin1252:
case CpUtf8:
break;
default:
fatalError(
"Unsupported code page, only 0, 1252 and 65001 are supported!");
}
}
std::unique_ptr<ResourceFileWriter> Visitor;
bool IsDryRun = InputArgs.hasArg(OPT_dry_run);
if (!IsDryRun) {
auto OutArgsInfo = InputArgs.getAllArgValues(OPT_fileout);
if (OutArgsInfo.empty()) {
SmallString<128> OutputFile = InputFile;
llvm::sys::path::replace_extension(OutputFile, "res");
OutArgsInfo.push_back(std::string(OutputFile.str()));
}
if (OutArgsInfo.size() != 1)
fatalError(
"No more than one output file should be provided (using /FO flag).");
std::error_code EC;
auto FOut = std::make_unique<raw_fd_ostream>(
OutArgsInfo[0], EC, sys::fs::FA_Read | sys::fs::FA_Write);
if (EC)
fatalError("Error opening output file '" + OutArgsInfo[0] +
"': " + EC.message());
Visitor = std::make_unique<ResourceFileWriter>(Params, std::move(FOut));
Visitor->AppendNull = InputArgs.hasArg(OPT_add_null);
ExitOnErr(NullResource().visit(Visitor.get()));
// Set the default language; choose en-US arbitrarily.
unsigned PrimaryLangId = 0x09, SubLangId = 0x01;
if (InputArgs.hasArg(OPT_lang_id)) {
unsigned LangId;
if (InputArgs.getLastArgValue(OPT_lang_id).getAsInteger(16, LangId))
fatalError("Invalid language id: " +
InputArgs.getLastArgValue(OPT_lang_id));
PrimaryLangId = LangId & 0x3ff;
SubLangId = LangId >> 10;
}
ExitOnErr(LanguageResource(PrimaryLangId, SubLangId).visit(Visitor.get()));
}
rc::RCParser Parser{std::move(Tokens)};
while (!Parser.isEof()) {
auto Resource = ExitOnErr(Parser.parseSingleResource());
if (BeVerbose)
Resource->log(outs());
if (!IsDryRun)
ExitOnErr(Resource->visit(Visitor.get()));
}
// STRINGTABLE resources come at the very end.
if (!IsDryRun)
ExitOnErr(Visitor->dumpAllStringTables());
return 0;
}
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