| //===-- class2llvm.cpp - class2llvm utility ---------------------*- C++ -*-===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file was developed by the LLVM research group and is distributed under |
| // the University of Illinois Open Source License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // This is a sample class reader driver. It is used to drive class |
| // reader tests. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include <llvm/Java/ClassFile.h> |
| #include <llvm/Java/Compiler.h> |
| #include <llvm/PassManager.h> |
| #include <llvm/Analysis/Verifier.h> |
| #include <llvm/Bytecode/WriteBytecodePass.h> |
| #include <llvm/Support/CommandLine.h> |
| #include <llvm/System/Signals.h> |
| |
| #include <cstddef> |
| #include <fstream> |
| #include <iostream> |
| |
| using namespace llvm; |
| |
| static cl::opt<std::string> |
| InputClass(cl::Positional, cl::desc("<input class>")); |
| |
| static cl::opt<std::string> |
| OutputFilename("o", cl::desc("Output filename"), cl::value_desc("filename")); |
| |
| int main(int argc, char* argv[]) |
| { |
| sys::PrintStackTraceOnErrorSignal(); |
| cl::ParseCommandLineOptions(argc, argv, |
| "classfile to llvm utility"); |
| |
| std::ostream* out = &std::cout; |
| if (!OutputFilename.empty()) { |
| sys::RemoveFileOnSignal(sys::Path(OutputFilename)); |
| out = new std::ofstream(OutputFilename.c_str()); |
| } |
| |
| try { |
| std::auto_ptr<Module> module = Java::compile(InputClass); |
| |
| PassManager passes; |
| passes.add(createVerifierPass()); |
| passes.add(new WriteBytecodePass(out)); |
| passes.run(*module); |
| } |
| catch (std::exception& e) { |
| std::cerr << e.what() << '\n'; |
| sys::Path(OutputFilename).eraseFromDisk(); |
| return EXIT_FAILURE; |
| } |
| |
| if (!OutputFilename.empty()) |
| delete out; |
| |
| return EXIT_SUCCESS; |
| } |