1 //===- llvm-db.cpp - LLVM Debugger ----------------------------------------===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This utility implements a simple text-mode front-end to the LLVM debugger
13 //===----------------------------------------------------------------------===//
15 #include "CLIDebugger.h"
16 #include "llvm/Support/CommandLine.h"
17 #include "llvm/Support/ManagedStatic.h"
18 #include "llvm/Support/PrettyStackTrace.h"
19 #include "llvm/System/Signals.h"
24 // Command line options for specifying the program to debug and options to use
26 InputFile(cl::desc("<program>"), cl::Positional, cl::init(""));
29 InputArgs("args", cl::Positional, cl::desc("<program and arguments>"),
32 // Command line options to control various directory related stuff
34 SourceDirectories("directory", cl::value_desc("directory"),
35 cl::desc("Add directory to the search for source files"));
36 cl::alias SDA("d", cl::desc("Alias for --directory"),
37 cl::aliasopt(SourceDirectories));
40 WorkingDirectory("cd", cl::desc("Use directory as current working directory"),
41 cl::value_desc("directory"));
43 // Command line options specific to the llvm-db debugger driver
44 cl::opt<bool> Quiet("quiet", cl::desc("Do not print introductory messages"));
45 cl::alias QA1("silent", cl::desc("Alias for -quiet"), cl::aliasopt(Quiet));
46 cl::alias QA2("q", cl::desc("Alias for -quiet"), cl::aliasopt(Quiet));
49 //===----------------------------------------------------------------------===//
50 // main Driver function
52 int main(int argc, char **argv, char * const *envp) {
53 // Print a stack trace if we signal out.
54 sys::PrintStackTraceOnErrorSignal();
55 PrettyStackTraceProgram X(argc, argv);
57 llvm_shutdown_obj Y; // Call llvm_shutdown() on exit.
58 std::cout << "NOTE: llvm-db is known useless right now.\n";
60 cl::ParseCommandLineOptions(argc, argv,
61 "llvm source-level debugger\n");
64 std::cout << "llvm-db: The LLVM source-level debugger\n";
66 // Merge Inputfile and InputArgs into the InputArgs list...
67 if (!InputFile.empty() && InputArgs.empty())
68 InputArgs.push_back(InputFile);
70 // Create the CLI debugger...
73 // Initialize the debugger with the command line options we read...
74 Debugger &Dbg = D.getDebugger();
76 // Initialize the debugger environment.
77 Dbg.initializeEnvironment(envp);
78 Dbg.setWorkingDirectory(WorkingDirectory);
79 for (unsigned i = 0, e = SourceDirectories.size(); i != e; ++i)
80 D.addSourceDirectory(SourceDirectories[i]);
82 if (!InputArgs.empty()) {
84 D.fileCommand(InputArgs[0]);
85 } catch (const std::string &Error) {
86 std::cout << "Error: " << Error << "\n";
89 Dbg.setProgramArguments(InputArgs.begin()+1, InputArgs.end());
92 // Now that we have initialized the debugger, run it.
94 } catch (const std::string& msg) {
95 std::cerr << argv[0] << ": " << msg << "\n";
97 std::cerr << argv[0] << ": Unexpected unknown exception occurred.\n";