remove llvm-db: it is completely broken and if anyone wants to do a debugger,

they should not base it on llvm-db (which not following almost any "best practices").


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83288 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 0 insertions, 866 deletions

diff --git a/tools/llvm-db/Commands.cpp b/tools/llvm-db/Commands.cpp
deleted file mode 100644
index d759dddecd..0000000000
--- a/tools/llvm-db/Commands.cpp
+++ /dev/null
@@ -1,866 +0,0 @@
-//===-- Commands.cpp - Implement various commands for the CLI -------------===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// This file implements many builtin user commands.
-//
-//===----------------------------------------------------------------------===//
-
-#include "CLIDebugger.h"
-#include "CLICommand.h"
-#include "llvm/Debugger/ProgramInfo.h"
-#include "llvm/Debugger/RuntimeInfo.h"
-#include "llvm/Debugger/SourceLanguage.h"
-#include "llvm/Debugger/SourceFile.h"
-#include "llvm/Debugger/InferiorProcess.h"
-#include "llvm/Support/FileUtilities.h"
-#include "llvm/Support/raw_ostream.h"
-#include "llvm/ADT/StringExtras.h"
-#include <cstdlib>
-using namespace llvm;
-
-/// getCurrentLanguage - Return the current source language that the user is
-/// playing around with.  This is aquired from the current stack frame of a
-/// running program if one exists, but this value can be explicitly set by the
-/// user as well.
-const SourceLanguage &CLIDebugger::getCurrentLanguage() const {
-  // If the user explicitly switched languages with 'set language', use what
-  // they asked for.
-  if (CurrentLanguage) {
-    return *CurrentLanguage;
-  } else if (Dbg.isProgramRunning()) {
-    // Otherwise, if the program is running, infer the current language from it.
-    const GlobalVariable *FuncDesc =
-      getRuntimeInfo().getCurrentFrame().getFunctionDesc();
-    return getProgramInfo().getFunction(FuncDesc).getSourceFile().getLanguage();
-  } else {
-    // Otherwise, default to C like GDB apparently does.
-    return SourceLanguage::getCFamilyInstance();
-  }
-}
-
-/// startProgramRunning - If the program has been updated, reload it, then
-/// start executing the program.
-void CLIDebugger::startProgramRunning() {
-  eliminateRunInfo();
-
-  // If the program has been modified, reload it!
-  sys::PathWithStatus Program(Dbg.getProgramPath());
-  std::string Err;
-  const sys::FileStatus *Status = Program.getFileStatus(false, &Err);
-  if (!Status)
-    throw Err;
-  if (TheProgramInfo->getProgramTimeStamp() != Status->getTimestamp()) {
-    outs() << "'" << Program.str() << "' has changed; re-reading program.\n";
-
-    // Unload an existing program.  This kills the program if necessary.
-    Dbg.unloadProgram();
-    delete TheProgramInfo;
-    TheProgramInfo = 0;
-    CurrentFile = 0;
-
-    Dbg.loadProgram(Program.str(), Context);
-    TheProgramInfo = new ProgramInfo(Dbg.getProgram());
-  }
-
-  outs() << "Starting program: " << Dbg.getProgramPath() << "\n";
-  Dbg.createProgram();
-
-  // There was no current frame.
-  LastCurrentFrame = 0;
-}
-
-/// printSourceLine - Print the specified line of the current source file.
-/// If the specified line is invalid (the source file could not be loaded or
-/// the line number is out of range), don't print anything, but return true.
-bool CLIDebugger::printSourceLine(unsigned LineNo) {
-  assert(CurrentFile && "There is no current source file to print!");
-  const char *LineStart, *LineEnd;
-  CurrentFile->getSourceLine(LineNo-1, LineStart, LineEnd);
-  if (LineStart == 0) return true;
-  outs() << LineNo;
-
-  // If this is the line the program is currently stopped at, print a marker.
-  if (Dbg.isProgramRunning()) {
-    unsigned CurLineNo, CurColNo;
-    const SourceFileInfo *CurSFI;
-    getRuntimeInfo().getCurrentFrame().getSourceLocation(CurLineNo, CurColNo,
-                                                         CurSFI);
-
-    if (CurLineNo == LineNo && CurrentFile == &CurSFI->getSourceText())
-      outs() << " ->";
-  }
-
-  outs() << "\t" << std::string(LineStart, LineEnd) << "\n";
-  return false;
-}
-
-/// printProgramLocation - Print a line of the place where the current stack
-/// frame has stopped and the source line it is on.
-///
-void CLIDebugger::printProgramLocation(bool PrintLocation) {
-  assert(Dbg.isProgramLoaded() && Dbg.isProgramRunning() &&
-         "Error program is not loaded and running!");
-
-  // Figure out where the program stopped...
-  StackFrame &SF = getRuntimeInfo().getCurrentFrame();
-  unsigned LineNo, ColNo;
-  const SourceFileInfo *FileDesc;
-  SF.getSourceLocation(LineNo, ColNo, FileDesc);
-
-  // If requested, print out some program information about WHERE we are.
-  if (PrintLocation) {
-    // FIXME: print the current function arguments
-    if (const GlobalVariable *FuncDesc = SF.getFunctionDesc())
-      outs() << getProgramInfo().getFunction(FuncDesc).getSymbolicName();
-    else
-      outs() << "<unknown function>";
-
-    CurrentFile = &FileDesc->getSourceText();
-
-    outs() << " at " << CurrentFile->getFilename() << ":" << LineNo;
-    if (ColNo) outs() << ":" << ColNo;
-    outs() << "\n";
-  }
-
-  if (printSourceLine(LineNo))
-    outs() << "<could not load source file>\n";
-  else {
-    LineListedStart = LineNo-ListSize/2+1;
-    if ((int)LineListedStart < 1) LineListedStart = 1;
-    LineListedEnd = LineListedStart+1;
-  }
-}
-
-/// eliminateRunInfo - We are about to run the program.  Forget any state
-/// about how the program used to be stopped.
-void CLIDebugger::eliminateRunInfo() {
-  delete TheRuntimeInfo;
-  TheRuntimeInfo = 0;
-}
-
-/// programStoppedSuccessfully - This method updates internal data
-/// structures to reflect the fact that the program just executed a while,
-/// and has successfully stopped.
-void CLIDebugger::programStoppedSuccessfully() {
-  assert(TheRuntimeInfo==0 && "Someone forgot to release the old RuntimeInfo!");
-
-  TheRuntimeInfo = new RuntimeInfo(TheProgramInfo, Dbg.getRunningProcess());
-
-  // FIXME: if there are any breakpoints at the current location, print them as
-  // well.
-
-  // Since the program as successfully stopped, print its location.
-  void *CurrentFrame = getRuntimeInfo().getCurrentFrame().getFrameID();
-  printProgramLocation(CurrentFrame != LastCurrentFrame);
-  LastCurrentFrame = CurrentFrame;
-}
-
-
-
-/// getUnsignedIntegerOption - Get an unsigned integer number from the Val
-/// string.  Check to make sure that the string contains an unsigned integer
-/// token, and if not, throw an exception.  If isOnlyOption is set, also throw
-/// an exception if there is extra junk at the end of the string.
-static unsigned getUnsignedIntegerOption(const char *Msg, std::string &Val,
-                                         bool isOnlyOption = true) {
-  std::string Tok = getToken(Val);
-  if (Tok.empty() || (isOnlyOption && !getToken(Val).empty()))
-    throw std::string(Msg) + " expects an unsigned integer argument.";
-
-  char *EndPtr;
-  unsigned Result = strtoul(Tok.c_str(), &EndPtr, 0);
-  if (EndPtr != Tok.c_str()+Tok.size())
-    throw std::string(Msg) + " expects an unsigned integer argument.";
-
-  return Result;
-}
-
-/// getOptionalUnsignedIntegerOption - This method is just like
-/// getUnsignedIntegerOption, but if the argument value is not specified, a
-/// default is returned instead of causing an error.
-static unsigned
-getOptionalUnsignedIntegerOption(const char *Msg, unsigned Default,
-                                 std::string &Val, bool isOnlyOption = true) {
-  // Check to see if the value was specified...
-  std::string TokVal = getToken(Val);
-  if (TokVal.empty()) return Default;
-
-  // If it was specified, add it back to the value we are parsing...
-  Val = TokVal+Val;
-
-  // And parse normally.
-  return getUnsignedIntegerOption(Msg, Val, isOnlyOption);
-}
-
-
-/// parseProgramOptions - This method parses the Options string and loads it
-/// as options to be passed to the program.  This is used by the run command
-/// and by 'set args'.
-void CLIDebugger::parseProgramOptions(std::string &Options) {
-  // FIXME: tokenizing by whitespace is clearly incorrect.  Instead we should
-  // honor quotes and other things that a shell would.  Also in the future we
-  // should support redirection of standard IO.
-
-  std::vector<std::string> Arguments;
-  for (std::string A = getToken(Options); !A.empty(); A = getToken(Options))
-    Arguments.push_back(A);
-  Dbg.setProgramArguments(Arguments.begin(), Arguments.end());
-}
-
-
-//===----------------------------------------------------------------------===//
-//                   Program startup and shutdown options
-//===----------------------------------------------------------------------===//
-
-
-/// file command - If the user specifies an option, search the PATH for the
-/// specified program/bitcode file and load it.  If the user does not specify
-/// an option, unload the current program.
-void CLIDebugger::fileCommand(std::string &Options) {
-  std::string Prog = getToken(Options);
-  if (!getToken(Options).empty())
-    throw "file command takes at most one argument.";
-
-  // Check to make sure the user knows what they are doing
-  if (Dbg.isProgramRunning() &&
-      !askYesNo("A program is already loaded.  Kill it?"))
-    return;
-
-  // Unload an existing program.  This kills the program if necessary.
-  eliminateRunInfo();
-  delete TheProgramInfo;
-  TheProgramInfo = 0;
-  Dbg.unloadProgram();
-  CurrentFile = 0;
-
-  // If requested, start the new program.
-  if (Prog.empty()) {
-    outs() << "Unloaded program.\n";
-  } else {
-    outs() << "Loading program... ";
-    outs().flush();
-    Dbg.loadProgram(Prog, Context);
-    assert(Dbg.isProgramLoaded() &&
-           "loadProgram succeeded, but not program loaded!");
-    TheProgramInfo = new ProgramInfo(Dbg.getProgram());
-    outs() << "successfully loaded '" << Dbg.getProgramPath() << "'!\n";
-  }
-}
-
-
-void CLIDebugger::createCommand(std::string &Options) {
-  if (!getToken(Options).empty())
-    throw "create command does not take any arguments.";
-  if (!Dbg.isProgramLoaded()) throw "No program loaded.";
-  if (Dbg.isProgramRunning() &&
-      !askYesNo("The program is already running.  Restart from the beginning?"))
-    return;
-
-  // Start the program running.
-  startProgramRunning();
-
-  // The program stopped!
-  programStoppedSuccessfully();
-}
-
-void CLIDebugger::killCommand(std::string &Options) {
-  if (!getToken(Options).empty())
-    throw "kill command does not take any arguments.";
-  if (!Dbg.isProgramRunning())
-    throw "No program is currently being run.";
-
-  if (askYesNo("Kill the program being debugged?"))
-    Dbg.killProgram();
-  eliminateRunInfo();
-}
-
-void CLIDebugger::quitCommand(std::string &Options) {
-  if (!getToken(Options).empty())
-    throw "quit command does not take any arguments.";
-
-  if (Dbg.isProgramRunning() &&
-      !askYesNo("The program is running.  Exit anyway?"))
-    return;
-
-  // Throw exception to get out of the user-input loop.
-  throw 0;
-}
-
-
-//===----------------------------------------------------------------------===//
-//                        Program execution commands
-//===----------------------------------------------------------------------===//
-
-void CLIDebugger::runCommand(std::string &Options) {
-  if (!Dbg.isProgramLoaded()) throw "No program loaded.";
-  if (Dbg.isProgramRunning() &&
-      !askYesNo("The program is already running.  Restart from the beginning?"))
-    return;
-
-  // Parse all of the options to the run command, which specify program
-  // arguments to run with.
-  parseProgramOptions(Options);
-
-  eliminateRunInfo();
-
-  // Start the program running.
-  startProgramRunning();
-
-  // Start the program running...
-  Options = "";
-  contCommand(Options);
-}
-
-void CLIDebugger::contCommand(std::string &Options) {
-  if (!getToken(Options).empty()) throw "cont argument not supported yet.";
-  if (!Dbg.isProgramRunning()) throw "Program is not running.";
-
-  eliminateRunInfo();
-
-  Dbg.contProgram();
-
-  // The program stopped!
-  programStoppedSuccessfully();
-}
-
-void CLIDebugger::stepCommand(std::string &Options) {
-  if (!Dbg.isProgramRunning()) throw "Program is not running.";
-
-  // Figure out how many times to step.
-  unsigned Amount =
-    getOptionalUnsignedIntegerOption("'step' command", 1, Options);
-
-  eliminateRunInfo();
-
-  // Step the specified number of times.
-  for (; Amount; --Amount)
-    Dbg.stepProgram();
-
-  // The program stopped!
-  programStoppedSuccessfully();
-}
-
-void CLIDebugger::nextCommand(std::string &Options) {
-  if (!Dbg.isProgramRunning()) throw "Program is not running.";
-  unsigned Amount =
-    getOptionalUnsignedIntegerOption("'next' command", 1, Options);
-
-  eliminateRunInfo();
-
-  for (; Amount; --Amount)
-    Dbg.nextProgram();
-
-  // The program stopped!
-  programStoppedSuccessfully();
-}
-
-void CLIDebugger::finishCommand(std::string &Options) {
-  if (!getToken(Options).empty())
-    throw "finish command does not take any arguments.";
-  if (!Dbg.isProgramRunning()) throw "Program is not running.";
-
-  // Figure out where we are exactly.  If the user requests that we return from
-  // a frame that is not the top frame, make sure we get it.
-  void *CurrentFrame = getRuntimeInfo().getCurrentFrame().getFrameID();
-
-  eliminateRunInfo();
-
-  Dbg.finishProgram(CurrentFrame);
-
-  // The program stopped!
-  programStoppedSuccessfully();
-}
-
-//===----------------------------------------------------------------------===//
-//                           Stack frame commands
-//===----------------------------------------------------------------------===//
-
-void CLIDebugger::backtraceCommand(std::string &Options) {
-  // Accepts "full", n, -n
-  if (!getToken(Options).empty())
-    throw "FIXME: bt command argument not implemented yet!";
-
-  RuntimeInfo &RI = getRuntimeInfo();
-  ProgramInfo &PI = getProgramInfo();
-
-  try {
-    for (unsigned i = 0; ; ++i) {
-      StackFrame &SF = RI.getStackFrame(i);
-      outs() << "#" << i;
-      if (i == RI.getCurrentFrameIdx())
-        outs() << " ->";
-      outs() << "\t" << SF.getFrameID() << " in ";
-      if (const GlobalVariable *G = SF.getFunctionDesc())
-        outs() << PI.getFunction(G).getSymbolicName();
-
-      unsigned LineNo, ColNo;
-      const SourceFileInfo *SFI;
-      SF.getSourceLocation(LineNo, ColNo, SFI);
-      if (!SFI->getBaseName().empty()) {
-        outs() << " at " << SFI->getBaseName();
-        if (LineNo) {
-          outs() << ":" << LineNo;
-          if (ColNo)
-            outs() << ":" << ColNo;
-        }
-      }
-
-      // FIXME: when we support shared libraries, we should print ' from foo.so'
-      // if the stack frame is from a different object than the current one.
-
-      outs() << "\n";
-    }
-  } catch (...) {
-    // Stop automatically when we run off the bottom of the stack.
-  }
-}
-
-void CLIDebugger::upCommand(std::string &Options) {
-  unsigned Num =
-    getOptionalUnsignedIntegerOption("'up' command", 1, Options);
-
-  RuntimeInfo &RI = getRuntimeInfo();
-  unsigned CurFrame = RI.getCurrentFrameIdx();
-
-  // Check to see if we go can up the specified number of frames.
-  try {
-    RI.getStackFrame(CurFrame+Num);
-  } catch (...) {
-    if (Num == 1)
-      throw "Initial frame selected; you cannot go up.";
-    else
-      throw "Cannot go up " + utostr(Num) + " frames!";
-  }
-
-  RI.setCurrentFrameIdx(CurFrame+Num);
-  printProgramLocation();
-}
-
-void CLIDebugger::downCommand(std::string &Options) {
-  unsigned Num =
-    getOptionalUnsignedIntegerOption("'down' command", 1, Options);
-
-  RuntimeInfo &RI = getRuntimeInfo();
-  unsigned CurFrame = RI.getCurrentFrameIdx();
-
-  // Check to see if we can go up the specified number of frames.
-  if (CurFrame < Num) {
-    if (Num == 1)
-      throw "Bottom (i.e., innermost) frame selected; you cannot go down.";
-    else
-      throw "Cannot go down " + utostr(Num) + " frames!";
-  }
-
-  RI.setCurrentFrameIdx(CurFrame-Num);
-  printProgramLocation();
-}
-
-void CLIDebugger::frameCommand(std::string &Options) {
-  RuntimeInfo &RI = getRuntimeInfo();
-  unsigned CurFrame = RI.getCurrentFrameIdx();
-
-  unsigned Num =
-    getOptionalUnsignedIntegerOption("'frame' command", CurFrame, Options);
-
-  // Check to see if we go to the specified frame.
-  RI.getStackFrame(Num);
-
-  RI.setCurrentFrameIdx(Num);
-  printProgramLocation();
-}
-
-
-//===----------------------------------------------------------------------===//
-//                        Breakpoint related commands
-//===----------------------------------------------------------------------===//
-
-void CLIDebugger::breakCommand(std::string &Options) {
-  // Figure out where the user wants a breakpoint.
-  const SourceFile *File;
-  unsigned LineNo;
-
-  // Check to see if the user specified a line specifier.
-  std::string Option = getToken(Options);  // strip whitespace
-  if (!Option.empty()) {
-    Options = Option + Options;  // reconstruct string
-
-    // Parse the line specifier.
-    parseLineSpec(Options, File, LineNo);
-  } else {
-    // Build a line specifier for the current stack frame.
-    throw "FIXME: breaking at the current location is not implemented yet!";
-  }
-
-  if (!File) File = CurrentFile;
-  if (File == 0)
-    throw "Unknown file to place breakpoint!";
-
-  errs() << "Break: " << File->getFilename() << ":" << LineNo << "\n";
-
-  throw "breakpoints not implemented yet!";
-}
-
-//===----------------------------------------------------------------------===//
-//                          Miscellaneous commands
-//===----------------------------------------------------------------------===//
-
-void CLIDebugger::infoCommand(std::string &Options) {
-  std::string What = getToken(Options);
-
-  if (What.empty() || !getToken(Options).empty()){
-    std::string infoStr("info");
-    helpCommand(infoStr);
-    return;
-  }
-
-  if (What == "frame") {
-  } else if (What == "functions") {
-    const std::map<const GlobalVariable*, SourceFunctionInfo*> &Functions
-      = getProgramInfo().getSourceFunctions();
-    outs() << "All defined functions:\n";
-    // FIXME: GDB groups these by source file.  We could do that I guess.
-    for (std::map<const GlobalVariable*, SourceFunctionInfo*>::const_iterator
-           I = Functions.begin(), E = Functions.end(); I != E; ++I) {
-      outs() << I->second->getSymbolicName() << "\n";
-    }
-
-  } else if (What == "source") {
-    if (CurrentFile == 0)
-      throw "No current source file.";
-
-    // Get the SourceFile information for the current file.
-    const SourceFileInfo &SF =
-      getProgramInfo().getSourceFile(CurrentFile->getDescriptor());
-
-    outs() << "Current source file is: " << SF.getBaseName() << "\n"
-            << "Compilation directory is: " << SF.getDirectory() << "\n";
-    if (unsigned NL = CurrentFile->getNumLines())
-      outs() << "Located in: " << CurrentFile->getFilename() << "\n"
-              << "Contains " << NL << " lines\n";
-    else
-      outs() << "Could not find source file.\n";
-    outs() << "Source language is "
-           << SF.getLanguage().getSourceLanguageName() << "\n";
-
-  } else if (What == "sources") {
-    const std::map<const GlobalVariable*, SourceFileInfo*> &SourceFiles =
-      getProgramInfo().getSourceFiles();
-    outs() << "Source files for the program:\n";
-    for (std::map<const GlobalVariable*, SourceFileInfo*>::const_iterator I =
-           SourceFiles.begin(), E = SourceFiles.end(); I != E;) {
-      outs() << I->second->getDirectory() << "/"
-             << I->second->getBaseName();
-      ++I;
-      if (I != E) outs() << ", ";
-    }
-    outs() << "\n";
-  } else if (What == "target") {
-    outs() << Dbg.getRunningProcess().getStatus();
-  } else {
-    // See if this is something handled by the current language.
-    if (getCurrentLanguage().printInfo(What))
-      return;
-
-    throw "Unknown info command '" + What + "'.  Try 'help info'.";
-  }
-}
-
-/// parseLineSpec - Parses a line specifier, for use by the 'list' command.
-/// If SourceFile is returned as a void pointer, then it was not specified.
-/// If the line specifier is invalid, an exception is thrown.
-void CLIDebugger::parseLineSpec(std::string &LineSpec,
-                                const SourceFile *&SourceFile,
-                                unsigned &LineNo) {
-  SourceFile = 0;
-  LineNo = 0;
-
-  // First, check to see if we have a : separator.
-  std::string FirstPart = getToken(LineSpec, ":");
-  std::string SecondPart = getToken(LineSpec, ":");
-  if (!getToken(LineSpec).empty()) throw "Malformed line specification!";
-
-  // If there is no second part, we must have either "function", "number",
-  // "+offset", or "-offset".
-  if (SecondPart.empty()) {
-    if (FirstPart.empty()) throw "Malformed line specification!";
-    if (FirstPart[0] == '+') {
-      FirstPart.erase(FirstPart.begin(), FirstPart.begin()+1);
-      // For +n, return LineListedEnd+n
-      LineNo = LineListedEnd +
-               getUnsignedIntegerOption("Line specifier '+'", FirstPart);
-
-    } else if (FirstPart[0] == '-') {
-      FirstPart.erase(FirstPart.begin(), FirstPart.begin()+1);
-      // For -n, return LineListedEnd-n
-      LineNo = LineListedEnd -
-               getUnsignedIntegerOption("Line specifier '-'", FirstPart);
-      if ((int)LineNo < 1) LineNo = 1;
-    } else if (FirstPart[0] == '*') {
-      throw "Address expressions not supported as source locations!";
-    } else {
-      // Ok, check to see if this is just a line number.
-      std::string Saved = FirstPart;
-      try {
-        LineNo = getUnsignedIntegerOption("", Saved);
-      } catch (...) {
-        // Ok, it's not a valid line number.  It must be a source-language
-        // entity name.
-        std::string Name = getToken(FirstPart);
-        if (!getToken(FirstPart).empty())
-          throw "Extra junk in line specifier after '" + Name + "'.";
-        SourceFunctionInfo *SFI =
-          getCurrentLanguage().lookupFunction(Name, getProgramInfo(),
-                                              TheRuntimeInfo);
-        if (SFI == 0)
-          throw "Unknown identifier '" + Name + "'.";
-
-        unsigned L, C;
-        SFI->getSourceLocation(L, C);
-        if (L == 0) throw "Could not locate '" + Name + "'!";
-        LineNo = L;
-        SourceFile = &SFI->getSourceFile().getSourceText();
-        return;
-      }
-    }
-
-  } else {
-    // Ok, this must be a filename qualified line number or function name.
-    // First, figure out the source filename.
-    std::string SourceFilename = getToken(FirstPart);
-    if (!getToken(FirstPart).empty())
-      throw "Invalid filename qualified source location!";
-
-    // Next, check to see if this is just a line number.
-    std::string Saved = SecondPart;
-    try {
-      LineNo = getUnsignedIntegerOption("", Saved);
-    } catch (...) {
-      // Ok, it's not a valid line number.  It must be a function name.
-      throw "FIXME: Filename qualified function names are not support "
-            "as line specifiers yet!";
-    }
-
-    // Ok, we got the line number.  Now check out the source file name to make
-    // sure it's all good.  If it is, return it.  If not, throw exception.
-    SourceFile =&getProgramInfo().getSourceFile(SourceFilename).getSourceText();
-  }
-}
-
-void CLIDebugger::listCommand(std::string &Options) {
-  if (!Dbg.isProgramLoaded())
-    throw "No program is loaded.  Use the 'file' command.";
-
-  // Handle "list foo," correctly, by returning " " as the second token
-  Options += " ";
-
-  std::string FirstLineSpec = getToken(Options, ",");
-  std::string SecondLineSpec = getToken(Options, ",");
-  if (!getToken(Options, ",").empty())
-    throw "list command only expects two source location specifiers!";
-
-  // StartLine, EndLine - The starting and ending line numbers to print.
-  unsigned StartLine = 0, EndLine = 0;
-
-  if (SecondLineSpec.empty()) {    // No second line specifier provided?
-    // Handle special forms like "", "+", "-", etc.
-    std::string TmpSpec = FirstLineSpec;
-    std::string Tok = getToken(TmpSpec);
-    if (getToken(TmpSpec).empty() && (Tok == "" || Tok == "+" || Tok == "-")) {
-      if (Tok == "+" || Tok == "") {
-        StartLine = LineListedEnd;
-        EndLine = StartLine + ListSize;
-      } else {
-        assert(Tok == "-");
-        StartLine = LineListedStart-ListSize;
-        EndLine = LineListedStart;
-        if ((int)StartLine <= 0) StartLine = 1;
-      }
-    } else {
-      // Must be a normal line specifier.
-      const SourceFile *File;
-      unsigned LineNo;
-      parseLineSpec(FirstLineSpec, File, LineNo);
-
-      // If the user only specified one file specifier, we should display
-      // ListSize lines centered at the specified line.
-      if (File != 0) CurrentFile = File;
-      StartLine = LineNo - (ListSize+1)/2;
-      if ((int)StartLine <= 0) StartLine = 1;
-      EndLine = StartLine + ListSize;
-    }
-
-  } else {
-    // Parse two line specifiers...
-    const SourceFile *StartFile, *EndFile;
-    unsigned StartLineNo, EndLineNo;
-    parseLineSpec(FirstLineSpec, StartFile, StartLineNo);
-    unsigned SavedLLE = LineListedEnd;
-    LineListedEnd = StartLineNo;
-    try {
-      parseLineSpec(SecondLineSpec, EndFile, EndLineNo);
-    } catch (...) {
-      LineListedEnd = SavedLLE;
-      throw;
-    }
-
-    // Inherit file specified by the first line spec if there was one.
-    if (EndFile == 0) EndFile = StartFile;
-
-    if (StartFile != EndFile)
-      throw "Start and end line specifiers are in different files!";
-    CurrentFile = StartFile;
-    StartLine = StartLineNo;
-    EndLine = EndLineNo+1;
-  }
-
-  assert((int)StartLine > 0 && (int)EndLine > 0 && StartLine <= EndLine &&
-         "Error reading line specifiers!");
-
-  // If there was no current file, and the user didn't specify one to list, we
-  // have an error.
-  if (CurrentFile == 0)
-    throw "There is no current file to list.";
-
-  // Remember for next time.
-  LineListedStart = StartLine;
-  LineListedEnd = StartLine;
-
-  for (unsigned LineNo = StartLine; LineNo != EndLine; ++LineNo) {
-    // Print the source line, unless it is invalid.
-    if (printSourceLine(LineNo))
-      break;
-    LineListedEnd = LineNo+1;
-  }
-
-  // If we didn't print any lines, find out why.
-  if (LineListedEnd == StartLine) {
-    // See if we can read line #0 from the file, if not, we couldn't load the
-    // file.
-    const char *LineStart, *LineEnd;
-    CurrentFile->getSourceLine(0, LineStart, LineEnd);
-    if (LineStart == 0)
-      throw "Could not load source file '" + CurrentFile->getFilename() + "'!";
-    else
-      outs() << "<end of file>\n";
-  }
-}
-
-void CLIDebugger::setCommand(std::string &Options) {
-  std::string What = getToken(Options);
-
-  if (What.empty())
-    throw "set command expects at least two arguments.";
-  if (What == "args") {
-    parseProgramOptions(Options);
-  } else if (What == "language") {
-    std::string Lang = getToken(Options);
-    if (!getToken(Options).empty())
-      throw "set language expects one argument at most.";
-    if (Lang == "") {
-      outs() << "The currently understood settings are:\n\n"
-             << "local or auto  Automatic setting based on source file\n"
-             << "c              Use the C language\n"
-             << "c++            Use the C++ language\n"
-             << "unknown        Use when source language is not supported\n";
-    } else if (Lang == "local" || Lang == "auto") {
-      CurrentLanguage = 0;
-    } else if (Lang == "c") {
-      CurrentLanguage = &SourceLanguage::getCFamilyInstance();
-    } else if (Lang == "c++") {
-      CurrentLanguage = &SourceLanguage::getCPlusPlusInstance();
-    } else if (Lang == "unknown") {
-      CurrentLanguage = &SourceLanguage::getUnknownLanguageInstance();
-    } else {
-      throw "Unknown language '" + Lang + "'.";
-    }
-
-  } else if (What == "listsize") {
-    ListSize = getUnsignedIntegerOption("'set prompt' command", Options);
-  } else if (What == "prompt") {
-    // Include any trailing whitespace or other tokens, but not leading
-    // whitespace.
-    Prompt = getToken(Options);  // Strip leading whitespace
-    Prompt += Options;           // Keep trailing whitespace or other stuff
-  } else {
-    // FIXME: Try to parse this as a source-language program expression.
-    throw "Don't know how to set '" + What + "'!";
-  }
-}
-
-void CLIDebugger::showCommand(std::string &Options) {
-  std::string What = getToken(Options);
-
-  if (What.empty() || !getToken(Options).empty())
-    throw "show command expects one argument.";
-
-  if (What == "args") {
-    outs() << "Argument list to give program when started is \"";
-    // FIXME: This doesn't print stuff correctly if the arguments have spaces in
-    // them, but currently the only way to get that is to use the --args command
-    // line argument.  This should really handle escaping all hard characters as
-    // needed.
-    for (unsigned i = 0, e = Dbg.getNumProgramArguments(); i != e; ++i)
-      outs() << (i ? " " : "") << Dbg.getProgramArgument(i);
-    outs() << "\"\n";
-
-  } else if (What == "language") {
-    outs() << "The current source language is '";
-    if (CurrentLanguage)
-      outs() << CurrentLanguage->getSourceLanguageName();
-    else
-      outs() << "auto; currently "
-             << getCurrentLanguage().getSourceLanguageName();
-    outs() << "'.\n";
-  } else if (What == "listsize") {
-    outs() << "Number of source lines llvm-db will list by default is "
-           << ListSize << ".\n";
-  } else if (What == "prompt") {
-    outs() << "llvm-db's prompt is \"" << Prompt << "\".\n";
-  } else {
-    throw "Unknown show command '" + What + "'.  Try 'help show'.";
-  }
-}
-
-void CLIDebugger::helpCommand(std::string &Options) {
-  // Print out all of the commands in the CommandTable
-  std::string Command = getToken(Options);
-  if (!getToken(Options).empty())
-    throw "help command takes at most one argument.";
-
-  // Getting detailed help on a particular command?
-  if (!Command.empty()) {
-    CLICommand *C = getCommand(Command);
-    outs() << C->getShortHelp() << ".\n" << C->getLongHelp();
-
-    // If there are aliases for this option, print them out.
-    const std::vector<std::string> &Names = C->getOptionNames();
-    if (Names.size() > 1) {
-      outs() << "The '" << Command << "' command is known as: '"
-             << Names[0] << "'";
-      for (unsigned i = 1, e = Names.size(); i != e; ++i)
-        outs() << ", '" << Names[i] << "'";
-      outs() << "\n";
-    }
-
-  } else {
-    unsigned MaxSize = 0;
-    for (std::map<std::string, CLICommand*>::iterator I = CommandTable.begin(),
-           E = CommandTable.end(); I != E; ++I)
-      if (I->first.size() > MaxSize &&
-          I->first == I->second->getPrimaryOptionName())
-        MaxSize = I->first.size();
-
-    // Loop over all of the commands, printing the short help version
-    for (std::map<std::string, CLICommand*>::iterator I = CommandTable.begin(),
-           E = CommandTable.end(); I != E; ++I)
-      if (I->first == I->second->getPrimaryOptionName())
-        outs() << I->first << std::string(MaxSize - I->first.size(), ' ')
-               << " - " << I->second->getShortHelp() << "\n";
-  }
-}