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Use the newly abstracted interface for running our tools and gcc.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8756 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Misha Brukman 2003-09-29 22:40:52 +00:00
parent 44f8a34aab
commit 4148556a9c
1 changed files with 18 additions and 437 deletions
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455
tools/bugpoint/ExecutionDriver.cpp
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@ -15,6 +15,7 @@ BUGPOINT NOTES:
*/
#include "BugDriver.h"
#include "Support/ToolRunner.h"
#include "Support/CommandLine.h"
#include "Support/Debug.h"
#include "Support/FileUtilities.h"
@ -29,6 +30,7 @@ namespace {
enum OutputType {
RunLLI, RunJIT, RunLLC, RunCBE
};
cl::opt<OutputType>
InterpreterSel(cl::desc("Specify how LLVM code should be executed:"),
cl::values(clEnumValN(RunLLI, "run-lli", "Execute with LLI"),
@ -40,8 +42,6 @@ namespace {
cl::opt<std::string>
InputFile("input", cl::init("/dev/null"),
cl::desc("Filename to pipe in as stdin (default: /dev/null)"));
enum FileType { AsmFile, CFile };
}
// Anything specified after the --args option are taken as arguments to the
@ -50,426 +50,6 @@ cl::list<std::string>
InputArgv("args", cl::Positional, cl::desc("<program arguments>..."),
cl::ZeroOrMore);
/// 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);
}
std::vector<const char*> LLIArgs;
LLIArgs.push_back(LLIPath.c_str());
LLIArgs.push_back("-abort-on-exception");
LLIArgs.push_back("-quiet");
LLIArgs.push_back("-force-interpreter=true");
LLIArgs.push_back(Bytecode.c_str());
// Add optional parameters to the running program from Argv
for (unsigned i=0, e = InputArgv.size(); i != e; ++i)
LLIArgs.push_back(InputArgv[i].c_str());
LLIArgs.push_back(0);
std::cout << "<lli>" << std::flush;
DEBUG(std::cerr << "\nAbout to run:\n\t";
for (unsigned i=0, e = LLIArgs.size(); i != e; ++i)
std::cerr << " " << LLIArgs[i];
std::cerr << "\n";
);
return RunProgramWithTimeout(LLIPath, &LLIArgs[0],
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");
std::vector<const char*> GCCArgs;
GCCArgs.push_back(GCCPath.c_str());
if (!SharedLib.empty()) // Specify the shared library to link in...
GCCArgs.push_back(SharedLib.c_str());
GCCArgs.push_back("-x");
if (fileType == CFile) {
GCCArgs.push_back("c");
GCCArgs.push_back("-fno-strict-aliasing");
} else {
GCCArgs.push_back("assembler");
}
GCCArgs.push_back(ProgramFile.c_str()); // Specify the input filename...
GCCArgs.push_back("-o");
GCCArgs.push_back(OutputBinary.c_str()); // Output to the right file...
GCCArgs.push_back("-lm"); // Hard-code the math library...
GCCArgs.push_back("-O2"); // Optimize the program a bit...
GCCArgs.push_back(0); // NULL terminator
std::cout << "<gcc>" << std::flush;
if (RunProgramWithTimeout(GCCPath, &GCCArgs[0], "/dev/null", "/dev/null",
"/dev/null")) {
ProcessFailure(&GCCArgs[0]);
exit(1);
}
std::vector<const char*> ProgramArgs;
ProgramArgs.push_back(OutputBinary.c_str());
// Add optional parameters to the running program from Argv
for (unsigned i=0, e = InputArgv.size(); i != e; ++i)
ProgramArgs.push_back(InputArgv[i].c_str());
ProgramArgs.push_back(0); // NULL terminator
// Now that we have a binary, run it!
std::cout << "<program>" << std::flush;
DEBUG(std::cerr << "\nAbout to run:\n\t";
for (unsigned i=0, e = ProgramArgs.size(); i != e; ++i)
std::cerr << " " << ProgramArgs[i];
std::cerr << "\n";
);
int ProgramResult = RunProgramWithTimeout(OutputBinary, &ProgramArgs[0],
InputFile, OutputFile, OutputFile);
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",
"-fno-strict-aliasing",
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>" << std::flush;
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>" << std::flush;
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;
}
//===----------------------------------------------------------------------===//
// JIT Implementation of AbstractIntepreter interface
//
class JIT : public AbstractInterpreter {
std::string LLIPath; // The path to the LLI executable
public:
JIT(const std::string &Path) : LLIPath(Path) { }
// JIT create method - Try to find the LLI executable
static JIT *create(BugDriver *BD, std::string &Message) {
std::string LLIPath = FindExecutable("lli", BD->getToolName());
if (!LLIPath.empty()) {
Message = "Found lli: " + LLIPath + "\n";
return new JIT(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 JIT::ExecuteProgram(const std::string &Bytecode,
const std::string &OutputFile,
const std::string &SharedLib) {
// Construct a vector of parameters, incorporating those from the command-line
std::vector<const char*> JITArgs;
JITArgs.push_back(LLIPath.c_str());
JITArgs.push_back("-quiet");
JITArgs.push_back("-force-interpreter=false");
if (!SharedLib.empty()) {
JITArgs.push_back("-load");
JITArgs.push_back(SharedLib.c_str());
}
JITArgs.push_back(Bytecode.c_str());
// Add optional parameters to the running program from Argv
for (unsigned i=0, e = InputArgv.size(); i != e; ++i)
JITArgs.push_back(InputArgv[i].c_str());
JITArgs.push_back(0);
std::cout << "<jit>" << std::flush;
DEBUG(std::cerr << "\nAbout to run:\n\t";
for (unsigned i=0, e = JITArgs.size(); i != e; ++i)
std::cerr << " " << JITArgs[i];
std::cerr << "\n";
);
DEBUG(std::cerr << "\nSending output to " << OutputFile << "\n");
return RunProgramWithTimeout(LLIPath, &JITArgs[0],
InputFile, OutputFile, OutputFile);
}
//===----------------------------------------------------------------------===//
// 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; }
// CBE create method - Try to find the 'dis' executable
static CBE *create(BugDriver *BD, std::string &Message) {
std::string DISPath = FindExecutable("llvm-dis", BD->getToolName());
if (DISPath.empty()) {
Message =
"Cannot find `llvm-dis' in bugpoint executable directory or PATH!\n";
return 0;
}
Message = "Found llvm-dis: " + DISPath + "\n";
GCC *gcc = GCC::create(BD, Message);
if (!gcc) {
std::cerr << Message << "\n";
exit(1);
}
return new CBE(DISPath, gcc);
}
virtual int ExecuteProgram(const std::string &Bytecode,
const std::string &OutputFile,
const std::string &SharedLib = "");
// 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);
};
int CBE::OutputC(const std::string &Bytecode,
std::string &OutputCFile) {
OutputCFile = "bugpoint.cbe.c";
const char *DisArgs[] = {
DISPath.c_str(),
"-o", OutputCFile.c_str(), // Output to the C file
"-c", // Output to C
"-f", // Overwrite as necessary...
Bytecode.c_str(), // This is the input bytecode
0
};
std::cout << "<cbe>" << std::flush;
if (RunProgramWithTimeout(DISPath, DisArgs, "/dev/null", "/dev/null",
"/dev/null")) {
// If dis failed on the bytecode, print error...
std::cerr << "bugpoint error: `llvm-dis -c' failed!\n";
return 1;
}
return 0;
}
int CBE::ExecuteProgram(const std::string &Bytecode,
const std::string &OutputFile,
const std::string &SharedLib) {
std::string OutputCFile;
if (OutputC(Bytecode, OutputCFile)) {
std::cerr << "Could not generate C code with `llvm-dis', exiting.\n";
exit(1);
}
int Result = gcc->ExecuteProgram(OutputCFile, CFile, OutputFile, SharedLib);
removeFile(OutputCFile);
return Result;
}
//===----------------------------------------------------------------------===//
// BugDriver method implementation
//
@ -483,25 +63,24 @@ bool BugDriver::initializeExecutionEnvironment() {
// FIXME: This should default to searching for the best interpreter to use on
// this platform, which would be JIT, then LLC, then CBE, then LLI.
// Create an instance of the AbstractInterpreter interface as specified on the
// command line
// Create an instance of the AbstractInterpreter interface as specified on
// the command line
std::string Message;
switch (InterpreterSel) {
case RunLLI: Interpreter = LLI::create(this, Message); break;
case RunLLC: Interpreter = LLC::create(this, Message); break;
case RunJIT: Interpreter = JIT::create(this, Message); break;
case RunCBE: Interpreter = CBE::create(this, Message); break;
case RunLLI: Interpreter = createLLItool(getToolName(), Message); break;
case RunLLC: Interpreter = createLLCtool(getToolName(), Message); break;
case RunJIT: Interpreter = createJITtool(getToolName(), Message); break;
case RunCBE: Interpreter = createCBEtool(getToolName(), Message); break;
default:
Message = " Sorry, this back-end is not supported by bugpoint right now!\n";
Message = "Sorry, this back-end is not supported by bugpoint right now!\n";
break;
}
std::cout << Message;
std::cerr << Message;
// Initialize auxiliary tools for debugging
cbe = CBE::create(this, Message);
cbe = createCBEtool(getToolName(), Message);
if (!cbe) { std::cout << Message << "\nExiting.\n"; exit(1); }
gcc = GCC::create(this, Message);
gcc = createGCCtool(getToolName(), Message);
if (!gcc) { std::cout << Message << "\nExiting.\n"; exit(1); }
// If there was an error creating the selected interpreter, quit with error.
@ -517,7 +96,7 @@ std::string BugDriver::executeProgram(std::string OutputFile,
std::string BytecodeFile,
std::string SharedObject,
AbstractInterpreter *AI) {
assert((Interpreter || AI) &&"Interpreter should have been created already!");
assert((Interpreter||AI) && "Interpreter should have been created already!");
bool CreatedBytecode = false;
if (BytecodeFile.empty()) {
// Emit the program to a bytecode file...
@ -538,8 +117,10 @@ std::string BugDriver::executeProgram(std::string OutputFile,
// Actually execute the program!
int RetVal = (AI != 0) ?
AI->ExecuteProgram(BytecodeFile, OutputFile, SharedObject) :
Interpreter->ExecuteProgram(BytecodeFile, OutputFile, SharedObject);
AI->ExecuteProgram(BytecodeFile, InputArgv, InputFile, OutputFile,
SharedObject) :
Interpreter->ExecuteProgram(BytecodeFile, InputArgv,
InputFile, OutputFile, SharedObject);
// Remove the temporary bytecode file.
if (CreatedBytecode) removeFile(BytecodeFile);
@ -564,7 +145,7 @@ int BugDriver::compileSharedObject(const std::string &BytecodeFile,
#if 0 /* This is an alternative, as yet unimplemented */
// Using LLC
LLC *llc = LLC::create(this, Message);
LLC *llc = createLLCtool(Message);
if (llc->OutputAsm(BytecodeFile, OutputFile)) {
std::cerr << "Could not generate asm code with `llc', exiting.\n";
exit(1);