diff options
author | Chris Lattner <sabre@nondot.org> | 2009-10-05 02:29:51 +0000 |
---|---|---|
committer | Chris Lattner <sabre@nondot.org> | 2009-10-05 02:29:51 +0000 |
commit | dbf75e813e6d3b0de0487fe3afcc458717535e02 (patch) | |
tree | cecb1e5a17976bec55a42d4bf1ecc1096062a283 /tools/llvm-db | |
parent | c758feca8afcf9d0b9d447ac981fea37f4d9bc13 (diff) |
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
Diffstat (limited to 'tools/llvm-db')
-rw-r--r-- | tools/llvm-db/CLICommand.h | 111 | ||||
-rw-r--r-- | tools/llvm-db/CLIDebugger.cpp | 309 | ||||
-rw-r--r-- | tools/llvm-db/CLIDebugger.h | 208 | ||||
-rw-r--r-- | tools/llvm-db/CMakeLists.txt | 8 | ||||
-rw-r--r-- | tools/llvm-db/Commands.cpp | 866 | ||||
-rw-r--r-- | tools/llvm-db/Makefile | 15 | ||||
-rw-r--r-- | tools/llvm-db/llvm-db.cpp | 102 |
7 files changed, 0 insertions, 1619 deletions
diff --git a/tools/llvm-db/CLICommand.h b/tools/llvm-db/CLICommand.h deleted file mode 100644 index 0beec91eda..0000000000 --- a/tools/llvm-db/CLICommand.h +++ /dev/null @@ -1,111 +0,0 @@ -//===- CLICommand.h - Classes used to represent commands --------*- C++ -*-===// -// -// The LLVM Compiler Infrastructure -// -// This file is distributed under the University of Illinois Open Source -// License. See LICENSE.TXT for details. -// -//===----------------------------------------------------------------------===// -// -// This file defines a small class hierarchy used to represent the various types -// of commands in the CLI debugger front-end. -// -//===----------------------------------------------------------------------===// - -#ifndef CLICOMMAND_H -#define CLICOMMAND_H - -#include <string> -#include <vector> -#include <cassert> - -namespace llvm { - class CLIDebugger; - - /// CLICommand - Base class of the hierarchy, used to provide the abstract - /// interface common to all commands. - /// - class CLICommand { - /// ShortHelp, LongHelp - The short and long helps strings printed for the - /// command. The ShortHelp string should be a single line of text without a - /// newline. The LongHelp string should be a full description with - /// terminating newline. - std::string ShortHelp, LongHelp; - - /// RefCount - This contains the number of entries in the CLIDebugger - /// CommandTable that points to this command. - unsigned RefCount; - - /// OptionNames - This contains a list of names for the option. Keeping - /// track of this is done just to make the help output more helpful. - /// - std::vector<std::string> OptionNames; - public: - CLICommand(const std::string &SH, const std::string &LH) - : ShortHelp(SH), LongHelp(LH), RefCount(0) {} - - virtual ~CLICommand() {} - - /// addRef/dropRef - Implement a simple reference counting scheme to make - /// sure we delete commands that are no longer used. - void addRef() { ++RefCount; } - void dropRef() { - if (--RefCount == 0) delete this; - } - - /// getPrimaryOptionName - Return the first name the option was added under. - /// This is the name we report for the option in the help output. - std::string getPrimaryOptionName() const { - return OptionNames.empty() ? "" : OptionNames[0]; - } - - /// getOptionName - Return all of the names the option is registered as. - /// - const std::vector<std::string> &getOptionNames() const { - return OptionNames; - } - - /// addOptionName - Add a name that this option is known as. - /// - void addOptionName(const std::string &Name) { - OptionNames.push_back(Name); - } - - /// removeOptionName - Eliminate one of the names for this option. - /// - void removeOptionName(const std::string &Name) { - unsigned i = 0; - for (; OptionNames[i] != Name; ++i) - assert(i+1 < OptionNames.size() && "Didn't find option name!"); - OptionNames.erase(OptionNames.begin()+i); - } - - - /// getShortHelp - Return the short help string for this command. - /// - const std::string &getShortHelp() { return ShortHelp; } - - /// getLongHelp - Return the long help string for this command, if it - /// exists. - const std::string &getLongHelp() { return LongHelp; } - - virtual void runCommand(CLIDebugger &D, std::string &Arguments) = 0; - }; - - /// BuiltinCLICommand - This class represents commands that are built directly - /// into the debugger. - class BuiltinCLICommand : public CLICommand { - // Impl - Pointer to the method that implements the command - void (CLIDebugger::*Impl)(std::string&); - public: - BuiltinCLICommand(const std::string &ShortHelp, const std::string &LongHelp, - void (CLIDebugger::*impl)(std::string&)) - : CLICommand(ShortHelp, LongHelp), Impl(impl) {} - - void runCommand(CLIDebugger &D, std::string &Arguments) { - (D.*Impl)(Arguments); - } - }; -} - -#endif diff --git a/tools/llvm-db/CLIDebugger.cpp b/tools/llvm-db/CLIDebugger.cpp deleted file mode 100644 index 31476f7d0b..0000000000 --- a/tools/llvm-db/CLIDebugger.cpp +++ /dev/null @@ -1,309 +0,0 @@ -//===-- CLIDebugger.cpp - Command Line Interface to the Debugger ----------===// -// -// The LLVM Compiler Infrastructure -// -// This file is distributed under the University of Illinois Open Source -// License. See LICENSE.TXT for details. -// -//===----------------------------------------------------------------------===// -// -// This file contains the main implementation of the Command Line Interface to -// the debugger. -// -//===----------------------------------------------------------------------===// - -#include "CLIDebugger.h" -#include "CLICommand.h" -#include "llvm/Debugger/SourceFile.h" -#include "llvm/ADT/StringExtras.h" -#include <iostream> -using namespace llvm; - -/// CLIDebugger constructor - This initializes the debugger to its default -/// state, and initializes the command table. -/// -CLIDebugger::CLIDebugger(LLVMContext& ctxt) - : Context(ctxt), TheProgramInfo(0), TheRuntimeInfo(0), - Prompt("(llvm-db) "), ListSize(10) { - // Initialize instance variables - CurrentFile = 0; - LineListedStart = 1; - LineListedEnd = 1; - LastCurrentFrame = 0; - CurrentLanguage = 0; - - CLICommand *C; - //===--------------------------------------------------------------------===// - // Program startup and shutdown options - // - addCommand("file", new BuiltinCLICommand( - "Use specified file as the program to be debugged", - "The debugger looks in the current directory and the program $PATH for the" - " specified LLVM program. It then unloads the currently loaded program and" - " loads the specified program.\n", - &CLIDebugger::fileCommand)); - - addCommand("create", new BuiltinCLICommand( - "Start the program, halting its execution in main", - "This command creates an instance of the current program, but stops" - "\nexecution immediately.\n", - &CLIDebugger::createCommand)); - - addCommand("kill", new BuiltinCLICommand( - "Kills the execution of the current program being debugged", "", - &CLIDebugger::killCommand)); - - addCommand("quit", new BuiltinCLICommand( - "Exit the debugger", "", - &CLIDebugger::quitCommand)); - - //===--------------------------------------------------------------------===// - // Program execution commands - // - addCommand("run", C = new BuiltinCLICommand( - "Start the program running from the beginning", "", - &CLIDebugger::runCommand)); - addCommand("r", C); - - addCommand("cont", C = new BuiltinCLICommand( - "Continue program being debugged until the next stop point", "", - &CLIDebugger::contCommand)); - addCommand("c", C); addCommand("fg", C); - - addCommand("step", C = new BuiltinCLICommand( - "Step program until it reaches a new source line", "", - &CLIDebugger::stepCommand)); - addCommand("s", C); - - addCommand("next", C = new BuiltinCLICommand( - "Step program until it reaches a new source line, stepping over calls", "", - &CLIDebugger::nextCommand)); - addCommand("n", C); - - addCommand("finish", new BuiltinCLICommand( - "Execute until the selected stack frame returns", - "Upon return, the value returned is printed and put in the value history.\n", - &CLIDebugger::finishCommand)); - - //===--------------------------------------------------------------------===// - // Stack frame commands - // - addCommand("backtrace", C = new BuiltinCLICommand( - "Print backtrace of all stack frames, or innermost COUNT frames", - "FIXME: describe. Takes 'n', '-n' or 'full'\n", - &CLIDebugger::backtraceCommand)); - addCommand("bt", C); - - addCommand("up", new BuiltinCLICommand( - "Select and print stack frame that called this one", - "An argument says how many frames up to go.\n", - &CLIDebugger::upCommand)); - - addCommand("down", new BuiltinCLICommand( - "Select and print stack frame called by this one", - "An argument says how many frames down go.\n", - &CLIDebugger::downCommand)); - - addCommand("frame", C = new BuiltinCLICommand( - "Select and print a stack frame", - "With no argument, print the selected stack frame. (See also 'info frame').\n" - "An argument specifies the frame to select.\n", - &CLIDebugger::frameCommand)); - addCommand("f", C); - - //===--------------------------------------------------------------------===// - // Breakpoint related commands - // - addCommand("break", C = new BuiltinCLICommand( - "Set breakpoint at specified line or function", - "FIXME: describe.\n", - &CLIDebugger::breakCommand)); - addCommand("b", C); - - - //===--------------------------------------------------------------------===// - // Miscellaneous commands - // - addCommand("info", new BuiltinCLICommand( - "Generic command for showing things about the program being debugged", - "info functions: display information about functions in the program.\ninfo" - " source : display information about the current source file.\ninfo source" - "s : Display source file names for the program\ninfo target : print status" - " of inferior process\n", - &CLIDebugger::infoCommand)); - - addCommand("list", C = new BuiltinCLICommand( - "List specified function or line", - "FIXME: document\n", - &CLIDebugger::listCommand)); - addCommand("l", C); - - addCommand("set", new BuiltinCLICommand( - "Change program or debugger variable", - "FIXME: document\n", - &CLIDebugger::setCommand)); - - addCommand("show", new BuiltinCLICommand( - "Generic command for showing things about the debugger", - "FIXME: document\n", - &CLIDebugger::showCommand)); - - addCommand("help", C = new BuiltinCLICommand( - "Prints information about available commands", "", - &CLIDebugger::helpCommand)); - addCommand("h", C); -} - - -/// addCommand - Add a command to the CommandTable, potentially displacing a -/// preexisting command. -void CLIDebugger::addCommand(const std::string &Option, CLICommand *Cmd) { - assert(Cmd && "Cannot set a null command!"); - CLICommand *&CS = CommandTable[Option]; - if (CS == Cmd) return; // noop - - // If we already have a command, decrement the command's reference count. - if (CS) { - CS->removeOptionName(Option); - CS->dropRef(); - } - CS = Cmd; - - // Remember that we are using this command. - Cmd->addRef(); - Cmd->addOptionName(Option); -} - -static bool isValidPrefix(const std::string &Prefix, const std::string &Option){ - return Prefix.size() <= Option.size() && - Prefix == std::string(Option.begin(), Option.begin()+Prefix.size()); -} - -/// getCommand - This looks up the specified command using a fuzzy match. -/// If the string exactly matches a command or is an unambiguous prefix of a -/// command, it returns the command. Otherwise it throws an exception -/// indicating the possible ambiguous choices. -CLICommand *CLIDebugger::getCommand(const std::string &Command) { - - // Look up the command in the table. - std::map<std::string, CLICommand*>::iterator CI = - CommandTable.lower_bound(Command); - - if (Command == "") { - throw "Null command should not get here!"; - } else if (CI == CommandTable.end() || - !isValidPrefix(Command, CI->first)) { - // If this command has no relation to anything in the command table, - // print the error message. - throw "Unknown command: '" + Command + - "'. Use 'help' for list of commands."; - } else if (CI->first == Command) { - // We have an exact match on the command - return CI->second; - } else { - // Otherwise, we have a prefix match. Check to see if this is - // unambiguous, and if so, run it. - std::map<std::string, CLICommand*>::iterator CI2 = CI; - - // If the next command is a valid completion of this one, we are - // ambiguous. - if (++CI2 != CommandTable.end() && isValidPrefix(Command, CI2->first)) { - std::string ErrorMsg = - "Ambiguous command '" + Command + "'. Options: " + CI->first; - for (++CI; CI != CommandTable.end() && - isValidPrefix(Command, CI->first); ++CI) - ErrorMsg += ", " + CI->first; - throw ErrorMsg; - } else { - // It's an unambiguous prefix of a command, use it. - return CI->second; - } - } -} - - -/// run - Start the debugger, returning when the user exits the debugger. This -/// starts the main event loop of the CLI debugger. -/// -int CLIDebugger::run() { - std::string Command; - std::cout << Prompt; - - // Keep track of the last command issued, so that we can reissue it if the - // user hits enter as the command. - CLICommand *LastCommand = 0; - std::string LastArgs; - - // Continue reading commands until the end of file. - while (getline(std::cin, Command)) { - std::string Arguments = Command; - - // Split off the command from the arguments to the command. - Command = getToken(Arguments, " \t\n\v\f\r\\/;.*&"); - - try { - CLICommand *CurCommand; - - if (Command == "") { - CurCommand = LastCommand; - Arguments = LastArgs; - } else { - CurCommand = getCommand(Command); - } - - // Save the command we are running in case the user wants us to repeat it - // next time. - LastCommand = CurCommand; - LastArgs = Arguments; - - // Finally, execute the command. - if (CurCommand) - CurCommand->runCommand(*this, Arguments); - - } catch (int RetVal) { - // The quit command exits the command loop by throwing an integer return - // code. - return RetVal; - } catch (const std::string &Error) { - std::cout << "Error: " << Error << "\n"; - } catch (const char *Error) { - std::cout << "Error: " << Error << "\n"; - } catch (const NonErrorException &E) { - std::cout << E.getMessage() << "\n"; - } catch (...) { - std::cout << "ERROR: Debugger caught unexpected exception!\n"; - // Attempt to continue. - } - - // Write the prompt to get the next bit of user input - std::cout << Prompt; - } - - return 0; -} - - -/// askYesNo - Ask the user a question, and demand a yes/no response. If -/// the user says yes, return true. -/// -bool CLIDebugger::askYesNo(const std::string &Message) const { - std::string Answer; - std::cout << Message << " (y or n) " << std::flush; - while (getline(std::cin, Answer)) { - std::string Val = getToken(Answer); - if (getToken(Answer).empty()) { - if (Val == "yes" || Val == "y" || Val == "YES" || Val == "Y" || - Val == "Yes") - return true; - if (Val == "no" || Val == "n" || Val == "NO" || Val == "N" || - Val == "No") - return false; - } - - std::cout << "Please answer y or n.\n" << Message << " (y or n) " - << std::flush; - } - - // Ran out of input? - return false; -} diff --git a/tools/llvm-db/CLIDebugger.h b/tools/llvm-db/CLIDebugger.h deleted file mode 100644 index 0595b3deba..0000000000 --- a/tools/llvm-db/CLIDebugger.h +++ /dev/null @@ -1,208 +0,0 @@ -//===- CLIDebugger.h - LLVM Command Line Interface Debugger -----*- C++ -*-===// -// -// The LLVM Compiler Infrastructure -// -// This file is distributed under the University of Illinois Open Source -// License. See LICENSE.TXT for details. -// -//===----------------------------------------------------------------------===// -// -// This file defines the CLIDebugger class, which implements a command line -// interface to the LLVM Debugger library. -// -//===----------------------------------------------------------------------===// - -#ifndef CLIDEBUGGER_H -#define CLIDEBUGGER_H - -#include "llvm/Debugger/Debugger.h" -#include <map> - -namespace llvm { - class CLICommand; - class SourceFile; - struct SourceLanguage; - class ProgramInfo; - class RuntimeInfo; - class LLVMContext; - - /// CLIDebugger - This class implements the command line interface for the - /// LLVM debugger. - class CLIDebugger { - LLVMContext& Context; - - /// Dbg - The low-level LLVM debugger object that we use to do our dirty - /// work. - Debugger Dbg; - - /// CommandTable - This table contains a mapping from command names to the - /// CLICommand object that implements the command. - std::map<std::string, CLICommand*> CommandTable; - - //===------------------------------------------------------------------===// - // Data related to the program that is currently loaded. Note that the Dbg - // variable also captures some information about the loaded program. This - // pointer is non-null iff Dbg.isProgramLoaded() is true. - // - ProgramInfo *TheProgramInfo; - - //===------------------------------------------------------------------===// - // Data related to the program that is currently executing, but has stopped. - // Note that the Dbg variable also captures some information about the - // loaded program. This pointer is non-null iff Dbg.isProgramRunning() is - // true. - // - RuntimeInfo *TheRuntimeInfo; - - /// LastCurrentFrame - This variable holds the Frame ID of the top-level - /// stack frame from the last time that the program was executed. We keep - /// this because we only want to print the source location when the current - /// function changes. - void *LastCurrentFrame; - - //===------------------------------------------------------------------===// - // Data directly exposed through the debugger prompt - // - std::string Prompt; // set prompt, show prompt - unsigned ListSize; // set listsize, show listsize - - //===------------------------------------------------------------------===// - // Data to support user interaction - // - - /// CurrentFile - The current source file we are inspecting, or null if - /// none. - const SourceFile *CurrentFile; - unsigned LineListedStart, LineListedEnd; - - /// CurrentLanguage - This contains the source language in use, if one is - /// explicitly set by the user. If this is null (the default), the language - /// is automatically determined from the current stack frame. - /// - const SourceLanguage *CurrentLanguage; - - public: - CLIDebugger(LLVMContext& ctxt); - - /// getDebugger - Return the current LLVM debugger implementation being - /// used. - Debugger &getDebugger() { return Dbg; } - - /// run - Start the debugger, returning when the user exits the debugger. - /// This starts the main event loop of the CLI debugger. - /// - int run(); - - /// addCommand - Add a command to the CommandTable, potentially displacing a - /// preexisting command. - void addCommand(const std::string &Option, CLICommand *Cmd); - - /// addSourceDirectory - Add a directory to search when looking for the - /// source code of the program. - void addSourceDirectory(const std::string &Dir) { - // FIXME: implement - } - - /// 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 &getCurrentLanguage() const; - - /// getProgramInfo - Return a reference to the ProgramInfo object for the - /// currently loaded program. If there is no program loaded, throw an - /// exception. - ProgramInfo &getProgramInfo() const { - if (TheProgramInfo == 0) - throw "No program is loaded."; - return *TheProgramInfo; - } - - /// getRuntimeInfo - Return a reference to the current RuntimeInfo object. - /// If there is no program running, throw an exception. - RuntimeInfo &getRuntimeInfo() const { - if (TheRuntimeInfo == 0) - throw "No program is running."; - return *TheRuntimeInfo; - } - - private: // Internal implementation methods - - /// getCommand - This looks up the specified command using a fuzzy match. - /// If the string exactly matches a command or is an unambiguous prefix of a - /// command, it returns the command. Otherwise it throws an exception - /// indicating the possible ambiguous choices. - CLICommand *getCommand(const std::string &Command); - - /// askYesNo - Ask the user a question, and demand a yes/no response. If - /// the user says yes, return true. - bool askYesNo(const std::string &Message) const; - - /// printProgramLocation - Given a loaded and created child process that has - /// stopped, print its current source location. - void printProgramLocation(bool PrintLocation = true); - - /// eliminateRunInfo - We are about to run the program. Forget any state - /// about how the program used to be stopped. - void eliminateRunInfo(); - - /// programStoppedSuccessfully - This method updates internal data - /// structures to reflect the fact that the program just executed a while, - /// and has successfully stopped. - void programStoppedSuccessfully(); - - public: /// Builtin debugger commands, invokable by the user - // Program startup and shutdown options - void fileCommand(std::string &Options); // file - void createCommand(std::string &Options); // create - void killCommand(std::string &Options); // kill - void quitCommand(std::string &Options); // quit - - // Program execution commands - void runCommand(std::string &Options); // run|r - void contCommand(std::string &Options); // cont|c|fg - void stepCommand(std::string &Options); // step|s [count] - void nextCommand(std::string &Options); // next|n [count] - void finishCommand(std::string &Options); // finish - - // Stack frame commands - void backtraceCommand(std::string &Options); // backtrace|bt [count] - void upCommand(std::string &Options); // up - void downCommand(std::string &Options); // down - void frameCommand(std::string &Options); // frame - - - // Breakpoint related commands - void breakCommand(std::string &Options); // break|b <id> - - // Miscellaneous commands - void infoCommand(std::string &Options); // info - void listCommand(std::string &Options); // list - void setCommand(std::string &Options); // set - void showCommand(std::string &Options); // show - void helpCommand(std::string &Options); // help - - private: - /// startProgramRunning - If the program has been updated, reload it, then - /// start executing the program. - void startProgramRunning(); - - /// 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 printSourceLine(unsigned LineNo); - - /// 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 parseLineSpec(std::string &LineSpec, const SourceFile *&SourceFile, - unsigned &LineNo); - - /// 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 parseProgramOptions(std::string &Options); - }; -} - -#endif diff --git a/tools/llvm-db/CMakeLists.txt b/tools/llvm-db/CMakeLists.txt deleted file mode 100644 index af64908171..0000000000 --- a/tools/llvm-db/CMakeLists.txt +++ /dev/null @@ -1,8 +0,0 @@ -set(LLVM_LINK_COMPONENTS debugger) -set(LLVM_REQUIRES_EH 1) - -add_llvm_tool(llvm-db - CLIDebugger.cpp - Commands.cpp - llvm-db.cpp - ) 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: |