//===-- llvm/Support/ToolRunner.h -------------------------------*- 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 file exposes an abstraction around a platform C compiler, used to // compile C and assembly code. It also exposes an "AbstractIntepreter" // interface, which is used to execute code using one of the LLVM execution // engines. // //===----------------------------------------------------------------------===// #ifndef LLVM_SUPPORT_TOOLRUNNER_H #define LLVM_SUPPORT_TOOLRUNNER_H #include "llvm/Support/SystemUtils.h" #include <exception> #include <vector> namespace llvm { class CBE; class LLC; /// ToolExecutionError - An instance of this class is thrown by the /// AbstractInterpreter instances if there is an error running a tool (e.g., LLC /// crashes) which prevents execution of the program. /// class ToolExecutionError : std::exception { std::string Message; public: explicit ToolExecutionError(const std::string &M) : Message(M) {} virtual ~ToolExecutionError() throw(); virtual const char* what() const throw() { return Message.c_str(); } }; //===---------------------------------------------------------------------===// // GCC abstraction // class GCC { sys::Path GCCPath; // The path to the gcc executable GCC(const sys::Path &gccPath) : GCCPath(gccPath) { } public: enum FileType { AsmFile, CFile }; static GCC* create(const std::string &ProgramPath, std::string &Message); /// ExecuteProgram - Execute the program specified by "ProgramFile" (which is /// either a .s file, or a .c file, specified by FileType), with the specified /// arguments. Standard input is specified with InputFile, and standard /// Output is captured to the specified OutputFile location. The SharedLibs /// option specifies optional native shared objects that can be loaded into /// the program for execution. /// int ExecuteProgram(const std::string &ProgramFile, const std::vector<std::string> &Args, FileType fileType, const std::string &InputFile, const std::string &OutputFile, const std::vector<std::string> &SharedLibs = std::vector<std::string>(), unsigned Timeout = 0); /// MakeSharedObject - This compiles the specified file (which is either a .c /// file or a .s file) into a shared object. /// int MakeSharedObject(const std::string &InputFile, FileType fileType, std::string &OutputFile); }; //===---------------------------------------------------------------------===// /// 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. /// class AbstractInterpreter { public: static CBE *createCBE(const std::string &ProgramPath, std::string &Message, const std::vector<std::string> *Args = 0); static LLC *createLLC(const std::string &ProgramPath, std::string &Message, const std::vector<std::string> *Args = 0); static AbstractInterpreter* createLLI(const std::string &ProgramPath, std::string &Message, const std::vector<std::string> *Args=0); static AbstractInterpreter* createJIT(const std::string &ProgramPath, std::string &Message, const std::vector<std::string> *Args=0); virtual ~AbstractInterpreter() {} /// compileProgram - Compile the specified program from bytecode to executable /// code. This does not produce any output, it is only used when debugging /// the code generator. If the code generator fails, an exception should be /// thrown, otherwise, this function will just return. virtual void compileProgram(const std::string &Bytecode) {} /// 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::vector<std::string> &Args, const std::string &InputFile, const std::string &OutputFile, const std::vector<std::string> &SharedLibs = std::vector<std::string>(), unsigned Timeout = 0) = 0; }; //===---------------------------------------------------------------------===// // CBE Implementation of AbstractIntepreter interface // class CBE : public AbstractInterpreter { sys::Path LLCPath; // The path to the `llc' executable std::vector<std::string> ToolArgs; // Extra args to pass to LLC GCC *gcc; public: CBE(const sys::Path &llcPath, GCC *Gcc, const std::vector<std::string> *Args) : LLCPath(llcPath), gcc(Gcc) { ToolArgs.clear (); if (Args) { ToolArgs = *Args; } } ~CBE() { delete gcc; } /// compileProgram - Compile the specified program from bytecode to executable /// code. This does not produce any output, it is only used when debugging /// the code generator. If the code generator fails, an exception should be /// thrown, otherwise, this function will just return. virtual void compileProgram(const std::string &Bytecode); virtual int ExecuteProgram(const std::string &Bytecode, const std::vector<std::string> &Args, const std::string &InputFile, const std::string &OutputFile, const std::vector<std::string> &SharedLibs = std::vector<std::string>(), unsigned Timeout = 0); // Sometimes we just want to go half-way and only generate the .c file, not // necessarily compile it with GCC and run the program. This throws an // exception if LLC crashes. // virtual void OutputC(const std::string &Bytecode, sys::Path& OutputCFile); }; //===---------------------------------------------------------------------===// // LLC Implementation of AbstractIntepreter interface // class LLC : public AbstractInterpreter { std::string LLCPath; // The path to the LLC executable std::vector<std::string> ToolArgs; // Extra args to pass to LLC GCC *gcc; public: LLC(const std::string &llcPath, GCC *Gcc, const std::vector<std::string> *Args) : LLCPath(llcPath), gcc(Gcc) { ToolArgs.clear (); if (Args) { ToolArgs = *Args; } } ~LLC() { delete gcc; } /// compileProgram - Compile the specified program from bytecode to executable /// code. This does not produce any output, it is only used when debugging /// the code generator. If the code generator fails, an exception should be /// thrown, otherwise, this function will just return. virtual void compileProgram(const std::string &Bytecode); virtual int ExecuteProgram(const std::string &Bytecode, const std::vector<std::string> &Args, const std::string &InputFile, const std::string &OutputFile, const std::vector<std::string> &SharedLibs = std::vector<std::string>(), unsigned Timeout = 0); // Sometimes we just want to go half-way and only generate the .s file, // not necessarily compile it all the way and run the program. This throws // an exception if execution of LLC fails. // void OutputAsm(const std::string &Bytecode, sys::Path &OutputAsmFile); }; } // End llvm namespace #endif