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//===-- 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 TOOLRUNNER_H
#define TOOLRUNNER_H
#include "Support/SystemUtils.h"
#include <vector>
class CBE;
class LLC;
//===---------------------------------------------------------------------===//
// GCC abstraction
//
class GCC {
std::string GCCPath; // The path to the gcc executable
GCC(const std::string &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>());
/// 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);
private:
void ProcessFailure(const char **Args);
};
//===---------------------------------------------------------------------===//
/// 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 {
static CBE* createCBE(const std::string &ProgramPath, std::string &Message);
static LLC *createLLC(const std::string &ProgramPath, std::string &Message);
static AbstractInterpreter* createLLI(const std::string &ProgramPath,
std::string &Message);
static AbstractInterpreter* createJIT(const std::string &ProgramPath,
std::string &Message);
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::vector<std::string> &Args,
const std::string &InputFile,
const std::string &OutputFile,
const std::vector<std::string> &SharedLibs =
std::vector<std::string>()) = 0;
};
//===---------------------------------------------------------------------===//
// CBE Implementation of AbstractIntepreter interface
//
class CBE : public AbstractInterpreter {
std::string DISPath; // The path to the `llvm-dis' executable
GCC *gcc;
public:
CBE(const std::string &disPath, GCC *Gcc) : DISPath(disPath), gcc(Gcc) { }
~CBE() { delete gcc; }
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>());
// Sometimes we just want to go half-way and only generate the .c file,
// not necessarily compile it with GCC and run the program.
//
virtual int OutputC(const std::string &Bytecode, std::string &OutputCFile);
};
//===---------------------------------------------------------------------===//
// 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; }
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>());
// 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.
//
int OutputAsm(const std::string &Bytecode, std::string &OutputAsmFile);
};
#endif
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