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//===-- tools/bugpoint/ToolRunner.h -----------------------------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// 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_TOOLS_BUGPOINT_TOOLRUNNER_H
#define LLVM_TOOLS_BUGPOINT_TOOLRUNNER_H
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/Error.h"
#include "llvm/Support/Path.h"
#include "llvm/Support/SystemUtils.h"
#include "llvm/TargetParser/Triple.h"
#include <exception>
#include <vector>
namespace llvm {
extern cl::opt<bool> SaveTemps;
extern Triple TargetTriple;
class LLC;
//===---------------------------------------------------------------------===//
// CC abstraction
//
class CC {
std::string CCPath; // The path to the cc executable.
std::string RemoteClientPath; // The path to the rsh / ssh executable.
std::vector<std::string> ccArgs; // CC-specific arguments.
CC(StringRef ccPath, StringRef RemotePath,
const std::vector<std::string> *CCArgs)
: CCPath(std::string(ccPath)), RemoteClientPath(std::string(RemotePath)) {
if (CCArgs)
ccArgs = *CCArgs;
}
public:
enum FileType { AsmFile, ObjectFile, CFile };
static CC *create(const char *Argv0, std::string &Message,
const std::string &CCBinary,
const std::vector<std::string> *Args);
/// 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.
///
Expected<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> &CCArgs = std::vector<std::string>(),
unsigned Timeout = 0, unsigned MemoryLimit = 0);
/// MakeSharedObject - This compiles the specified file (which is either a .c
/// file or a .s file) into a shared object.
///
Error MakeSharedObject(const std::string &InputFile, FileType fileType,
std::string &OutputFile,
const std::vector<std::string> &ArgsForCC);
};
//===---------------------------------------------------------------------===//
/// AbstractInterpreter Class - Subclasses of this class are used to execute
/// LLVM bitcode in a variety of ways. This abstract interface hides this
/// complexity behind a simple interface.
///
class AbstractInterpreter {
virtual void anchor();
public:
static LLC *createLLC(const char *Argv0, std::string &Message,
const std::string &CCBinary,
const std::vector<std::string> *Args = nullptr,
const std::vector<std::string> *CCArgs = nullptr,
bool UseIntegratedAssembler = false);
static AbstractInterpreter *
createLLI(const char *Argv0, std::string &Message,
const std::vector<std::string> *Args = nullptr);
static AbstractInterpreter *
createJIT(const char *Argv0, std::string &Message,
const std::vector<std::string> *Args = nullptr);
static AbstractInterpreter *
createCustomCompiler(const char *Argv0, std::string &Message,
const std::string &CompileCommandLine);
static AbstractInterpreter *
createCustomExecutor(const char *Argv0, std::string &Message,
const std::string &ExecCommandLine);
virtual ~AbstractInterpreter() {}
/// compileProgram - Compile the specified program from bitcode to executable
/// code. This does not produce any output, it is only used when debugging
/// the code generator. It returns false if the code generator fails.
virtual Error compileProgram(const std::string &Bitcode, unsigned Timeout = 0,
unsigned MemoryLimit = 0) {
return Error::success();
}
/// Compile the specified program from bitcode to code understood by the CC
/// driver (either C or asm). Returns an error if the code generator fails,,
/// otherwise, the type of code emitted.
virtual Expected<CC::FileType> OutputCode(const std::string &Bitcode,
std::string &OutFile,
unsigned Timeout = 0,
unsigned MemoryLimit = 0) {
return make_error<StringError>(
"OutputCode not supported by this AbstractInterpreter!",
inconvertibleErrorCode());
}
/// ExecuteProgram - Run the specified bitcode file, emitting output to the
/// specified filename. This sets RetVal to the exit code of the program or
/// returns an Error if a problem was encountered that prevented execution of
/// the program.
///
virtual Expected<int> ExecuteProgram(
const std::string &Bitcode, const std::vector<std::string> &Args,
const std::string &InputFile, const std::string &OutputFile,
const std::vector<std::string> &CCArgs = std::vector<std::string>(),
const std::vector<std::string> &SharedLibs = std::vector<std::string>(),
unsigned Timeout = 0, unsigned MemoryLimit = 0) = 0;
};
//===---------------------------------------------------------------------===//
// 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.
CC *cc;
bool UseIntegratedAssembler;
public:
LLC(const std::string &llcPath, CC *cc, const std::vector<std::string> *Args,
bool useIntegratedAssembler)
: LLCPath(llcPath), cc(cc),
UseIntegratedAssembler(useIntegratedAssembler) {
ToolArgs.clear();
if (Args)
ToolArgs = *Args;
}
~LLC() override { delete cc; }
/// compileProgram - Compile the specified program from bitcode to executable
/// code. This does not produce any output, it is only used when debugging
/// the code generator. Returns false if the code generator fails.
Error compileProgram(const std::string &Bitcode, unsigned Timeout = 0,
unsigned MemoryLimit = 0) override;
Expected<int> ExecuteProgram(
const std::string &Bitcode, const std::vector<std::string> &Args,
const std::string &InputFile, const std::string &OutputFile,
const std::vector<std::string> &CCArgs = std::vector<std::string>(),
const std::vector<std::string> &SharedLibs = std::vector<std::string>(),
unsigned Timeout = 0, unsigned MemoryLimit = 0) override;
Expected<CC::FileType> OutputCode(const std::string &Bitcode,
std::string &OutFile, unsigned Timeout = 0,
unsigned MemoryLimit = 0) override;
};
/// Find the first executable file \ExeName, either in the user's PATH or,
/// failing that, in the same directory as argv[0]. This allows us to find
/// another LLVM tool if it is built in the same directory. If no executable is
/// found, an error is returned.
ErrorOr<std::string> FindProgramByName(const std::string &ExeName,
const char *Argv0, void *MainAddr);
} // End llvm namespace
#endif
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