- enum FileType { AsmFile, CFile };
-}
-
-/// AbstractInterpreter Class - Subclasses of this class are used to execute
-/// LLVM bytecode in a variety of ways. This abstract interface hides this
-/// complexity behind a simple interface.
-///
-struct AbstractInterpreter {
-
- virtual ~AbstractInterpreter() {}
-
- /// ExecuteProgram - Run the specified bytecode file, emitting output to the
- /// specified filename. This returns the exit code of the program.
- ///
- virtual int ExecuteProgram(const std::string &Bytecode,
- const std::string &OutputFile,
- const std::string &SharedLib = "") = 0;
-};
-
-
-//===----------------------------------------------------------------------===//
-// LLI Implementation of AbstractIntepreter interface
-//
-class LLI : public AbstractInterpreter {
- std::string LLIPath; // The path to the LLI executable
-public:
- LLI(const std::string &Path) : LLIPath(Path) { }
-
- // LLI create method - Try to find the LLI executable
- static LLI *create(BugDriver *BD, std::string &Message) {
- std::string LLIPath = FindExecutable("lli", BD->getToolName());
- if (!LLIPath.empty()) {
- Message = "Found lli: " + LLIPath + "\n";
- return new LLI(LLIPath);
- }
-
- Message = "Cannot find `lli' in bugpoint executable directory or PATH!\n";
- return 0;
- }
- virtual int ExecuteProgram(const std::string &Bytecode,
- const std::string &OutputFile,
- const std::string &SharedLib = "");
-};
-
-int LLI::ExecuteProgram(const std::string &Bytecode,
- const std::string &OutputFile,
- const std::string &SharedLib) {
- if (!SharedLib.empty()) {
- std::cerr << "LLI currently does not support loading shared libraries.\n"
- << "Exiting.\n";
- exit(1);
- }
-
- const char *Args[] = {
- LLIPath.c_str(),
- "-abort-on-exception",
- "-quiet",
- "-force-interpreter=true",
- Bytecode.c_str(),
- 0
- };
-
- std::cout << "<lli>";
- return RunProgramWithTimeout(LLIPath, Args,
- InputFile, OutputFile, OutputFile);
-}
-
-//===----------------------------------------------------------------------===//
-// GCC abstraction
-//
-// This is not a *real* AbstractInterpreter as it does not accept bytecode
-// files, but only input acceptable to GCC, i.e. C, C++, and assembly files
-//
-class GCC {
- std::string GCCPath; // The path to the gcc executable
-public:
- GCC(const std::string &gccPath) : GCCPath(gccPath) { }
- virtual ~GCC() {}
-
- // GCC create method - Try to find the `gcc' executable
- static GCC *create(BugDriver *BD, std::string &Message) {
- std::string GCCPath = FindExecutable("gcc", BD->getToolName());
- if (GCCPath.empty()) {
- Message = "Cannot find `gcc' in bugpoint executable directory or PATH!\n";
- return 0;
- }
-
- Message = "Found gcc: " + GCCPath + "\n";
- return new GCC(GCCPath);
- }
-
- virtual int ExecuteProgram(const std::string &ProgramFile,
- FileType fileType,
- const std::string &OutputFile,
- const std::string &SharedLib = "");
-
- int MakeSharedObject(const std::string &InputFile,
- FileType fileType,
- std::string &OutputFile);
-
- void ProcessFailure(const char **Args);
-};
-
-int GCC::ExecuteProgram(const std::string &ProgramFile,
- FileType fileType,
- const std::string &OutputFile,
- const std::string &SharedLib) {
- std::string OutputBinary = getUniqueFilename("bugpoint.gcc.exe");
- const char **GCCArgs;
-
- const char *ArgsWithoutSO[] = {
- GCCPath.c_str(),
- "-x", (fileType == AsmFile) ? "assembler" : "c",
- ProgramFile.c_str(), // Specify the input filename...
- "-o", OutputBinary.c_str(), // Output to the right filename...
- "-lm", // Hard-code the math library...
- "-O2", // Optimize the program a bit...
- 0
- };
- const char *ArgsWithSO[] = {
- GCCPath.c_str(),
- SharedLib.c_str(), // Specify the shared library to link in...
- "-x", (fileType == AsmFile) ? "assembler" : "c",
- ProgramFile.c_str(), // Specify the input filename...
- "-o", OutputBinary.c_str(), // Output to the right filename...
- "-lm", // Hard-code the math library...
- "-O2", // Optimize the program a bit...
- 0
- };
-
- GCCArgs = (SharedLib.empty()) ? ArgsWithoutSO : ArgsWithSO;
- std::cout << "<gcc>";
- if (RunProgramWithTimeout(GCCPath, GCCArgs, "/dev/null", "/dev/null",
- "/dev/null")) {
- ProcessFailure(GCCArgs);
- exit(1);
- }
-
- const char *ProgramArgs[] = {
- OutputBinary.c_str(),
- 0
- };
-
- // Now that we have a binary, run it!
- std::cout << "<program>";
- int ProgramResult = RunProgramWithTimeout(OutputBinary, ProgramArgs,
- InputFile, OutputFile, OutputFile);
- std::cout << "\n";
- removeFile(OutputBinary);
- return ProgramResult;
-}
-
-int GCC::MakeSharedObject(const std::string &InputFile,
- FileType fileType,
- std::string &OutputFile) {
- OutputFile = getUniqueFilename("./bugpoint.so");
- // Compile the C/asm file into a shared object
- const char* GCCArgs[] = {
- GCCPath.c_str(),
- "-x", (fileType == AsmFile) ? "assembler" : "c",
- InputFile.c_str(), // Specify the input filename...
-#if defined(sparc) || defined(__sparc__) || defined(__sparcv9)
- "-G", // Compile a shared library, `-G' for Sparc
-#else
- "-shared", // `-shared' for Linux/X86, maybe others
-#endif
- "-o", OutputFile.c_str(), // Output to the right filename...
- "-O2", // Optimize the program a bit...
- 0
- };
-
- std::cout << "<gcc>";
- if(RunProgramWithTimeout(GCCPath, GCCArgs, "/dev/null", "/dev/null",
- "/dev/null")) {
- ProcessFailure(GCCArgs);
- exit(1);
- }
- return 0;
-}
-
-void GCC::ProcessFailure(const char** GCCArgs) {
- std::cerr << "\n*** bugpoint error: invocation of the C compiler failed!\n";
- for (const char **Arg = GCCArgs; *Arg; ++Arg)
- std::cerr << " " << *Arg;
- std::cerr << "\n";
-
- // Rerun the compiler, capturing any error messages to print them.
- std::string ErrorFilename = getUniqueFilename("bugpoint.gcc.errors");
- RunProgramWithTimeout(GCCPath, GCCArgs, "/dev/null", ErrorFilename.c_str(),
- ErrorFilename.c_str());
-
- // Print out the error messages generated by GCC if possible...
- std::ifstream ErrorFile(ErrorFilename.c_str());
- if (ErrorFile) {
- std::copy(std::istreambuf_iterator<char>(ErrorFile),
- std::istreambuf_iterator<char>(),
- std::ostreambuf_iterator<char>(std::cerr));
- ErrorFile.close();
- std::cerr << "\n";
- }
-
- removeFile(ErrorFilename);
-}
-
-//===----------------------------------------------------------------------===//
-// LLC Implementation of AbstractIntepreter interface
-//
-class LLC : public AbstractInterpreter {
- std::string LLCPath; // The path to the LLC executable
- GCC *gcc;
-public:
- LLC(const std::string &llcPath, GCC *Gcc)
- : LLCPath(llcPath), gcc(Gcc) { }
- ~LLC() { delete gcc; }
-
- // LLC create method - Try to find the LLC executable
- static LLC *create(BugDriver *BD, std::string &Message) {
- std::string LLCPath = FindExecutable("llc", BD->getToolName());
- if (LLCPath.empty()) {
- Message = "Cannot find `llc' in bugpoint executable directory or PATH!\n";
- return 0;
- }
-
- Message = "Found llc: " + LLCPath + "\n";
- GCC *gcc = GCC::create(BD, Message);
- if (!gcc) {
- std::cerr << Message << "\n";
- exit(1);
- }
- return new LLC(LLCPath, gcc);
- }
-
- virtual int ExecuteProgram(const std::string &Bytecode,
- const std::string &OutputFile,
- const std::string &SharedLib = "");
-
- int OutputAsm(const std::string &Bytecode,
- std::string &OutputAsmFile);
-};
-
-int LLC::OutputAsm(const std::string &Bytecode,
- std::string &OutputAsmFile) {
- OutputAsmFile = "bugpoint.llc.s";
- const char *LLCArgs[] = {
- LLCPath.c_str(),
- "-o", OutputAsmFile.c_str(), // Output to the Asm file
- "-f", // Overwrite as necessary...
- Bytecode.c_str(), // This is the input bytecode
- 0
- };
-
- std::cout << "<llc>";
- if (RunProgramWithTimeout(LLCPath, LLCArgs, "/dev/null", "/dev/null",
- "/dev/null")) {
- // If LLC failed on the bytecode, print error...
- std::cerr << "bugpoint error: `llc' failed!\n";
- removeFile(OutputAsmFile);
- return 1;
- }
-
- return 0;
-}
-
-int LLC::ExecuteProgram(const std::string &Bytecode,
- const std::string &OutputFile,
- const std::string &SharedLib) {
-
- std::string OutputAsmFile;
- if (OutputAsm(Bytecode, OutputAsmFile)) {
- std::cerr << "Could not generate asm code with `llc', exiting.\n";
- exit(1);
- }
-
- // Assuming LLC worked, compile the result with GCC and run it.
- int Result = gcc->ExecuteProgram(OutputAsmFile,AsmFile,OutputFile,SharedLib);
- removeFile(OutputAsmFile);
- return Result;