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//===- llvm-db.cpp - LLVM Debugger ----------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This utility implements a simple text-mode front-end to the LLVM debugger
// library.
//
//===----------------------------------------------------------------------===//
#include "CLIDebugger.h"
#include "llvm/LLVMContext.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/ManagedStatic.h"
#include "llvm/Support/PrettyStackTrace.h"
#include "llvm/System/Signals.h"
#include <iostream>
using namespace llvm;
namespace {
// Command line options for specifying the program to debug and options to use
cl::opt<std::string>
InputFile(cl::desc("<program>"), cl::Positional, cl::init(""));
cl::list<std::string>
InputArgs("args", cl::Positional, cl::desc("<program and arguments>"),
cl::ZeroOrMore);
// Command line options to control various directory related stuff
cl::list<std::string>
SourceDirectories("directory", cl::value_desc("directory"),
cl::desc("Add directory to the search for source files"));
cl::alias SDA("d", cl::desc("Alias for --directory"),
cl::aliasopt(SourceDirectories));
cl::opt<std::string>
WorkingDirectory("cd", cl::desc("Use directory as current working directory"),
cl::value_desc("directory"));
// Command line options specific to the llvm-db debugger driver
cl::opt<bool> Quiet("quiet", cl::desc("Do not print introductory messages"));
cl::alias QA1("silent", cl::desc("Alias for -quiet"), cl::aliasopt(Quiet));
cl::alias QA2("q", cl::desc("Alias for -quiet"), cl::aliasopt(Quiet));
}
//===----------------------------------------------------------------------===//
// main Driver function
//
int main(int argc, char **argv, char * const *envp) {
// Print a stack trace if we signal out.
sys::PrintStackTraceOnErrorSignal();
PrettyStackTraceProgram X(argc, argv);
LLVMContext Context;
llvm_shutdown_obj Y; // Call llvm_shutdown() on exit.
std::cout << "NOTE: llvm-db is known useless right now.\n";
try {
cl::ParseCommandLineOptions(argc, argv,
"llvm source-level debugger\n");
if (!Quiet)
std::cout << "llvm-db: The LLVM source-level debugger\n";
// Merge Inputfile and InputArgs into the InputArgs list...
if (!InputFile.empty() && InputArgs.empty())
InputArgs.push_back(InputFile);
// Create the CLI debugger...
CLIDebugger D(Context);
// Initialize the debugger with the command line options we read...
Debugger &Dbg = D.getDebugger();
// Initialize the debugger environment.
Dbg.initializeEnvironment(envp);
Dbg.setWorkingDirectory(WorkingDirectory);
for (unsigned i = 0, e = SourceDirectories.size(); i != e; ++i)
D.addSourceDirectory(SourceDirectories[i]);
if (!InputArgs.empty()) {
try {
D.fileCommand(InputArgs[0]);
} catch (const std::string &Error) {
std::cout << "Error: " << Error << "\n";
}
Dbg.setProgramArguments(InputArgs.begin()+1, InputArgs.end());
}
// Now that we have initialized the debugger, run it.
return D.run();
} catch (const std::string& msg) {
errs() << argv[0] << ": " << msg << "\n";
} catch (...) {
errs() << argv[0] << ": Unexpected unknown exception occurred.\n";
}
return 1;
}
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