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