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authored <ed@FreeBSD.org>2009-06-02 17:52:33 +0000
committered <ed@FreeBSD.org>2009-06-02 17:52:33 +0000
commit3277b69d734b9c90b44ebde4ede005717e2c3b2e (patch)
tree64ba909838c23261cace781ece27d106134ea451 /tools/llvm-db/llvm-db.cpp
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Import LLVM, at r72732.
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diff --git a/tools/llvm-db/llvm-db.cpp b/tools/llvm-db/llvm-db.cpp
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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/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);
+
+ 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;
+
+ // 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) {
+ std::cerr << argv[0] << ": " << msg << "\n";
+ } catch (...) {
+ std::cerr << argv[0] << ": Unexpected unknown exception occurred.\n";
+ }
+ return 1;
+}
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