Merge lldb r188801 to contrib/llvm/tools/lldb/

1 files changed, 1174 insertions, 0 deletions

diff --git a/contrib/llvm/tools/lldb/source/Interpreter/CommandObject.cpp b/contrib/llvm/tools/lldb/source/Interpreter/CommandObject.cpp
new file mode 100644
index 0000000..291dc40
--- /dev/null
+++ b/contrib/llvm/tools/lldb/source/Interpreter/CommandObject.cpp
@@ -0,0 +1,1174 @@
+//===-- CommandObject.cpp ---------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "lldb/lldb-python.h"
+
+#include "lldb/Interpreter/CommandObject.h"
+
+#include <string>
+#include <map>
+
+#include <getopt.h>
+#include <stdlib.h>
+#include <ctype.h>
+
+#include "lldb/Core/Address.h"
+#include "lldb/Core/ArchSpec.h"
+#include "lldb/Interpreter/Options.h"
+
+// These are for the Sourcename completers.
+// FIXME: Make a separate file for the completers.
+#include "lldb/Host/FileSpec.h"
+#include "lldb/Core/FileSpecList.h"
+#include "lldb/Target/Process.h"
+#include "lldb/Target/Target.h"
+
+#include "lldb/Interpreter/CommandInterpreter.h"
+#include "lldb/Interpreter/CommandReturnObject.h"
+#include "lldb/Interpreter/ScriptInterpreter.h"
+#include "lldb/Interpreter/ScriptInterpreterPython.h"
+
+using namespace lldb;
+using namespace lldb_private;
+
+//-------------------------------------------------------------------------
+// CommandObject
+//-------------------------------------------------------------------------
+
+CommandObject::CommandObject 
+(
+    CommandInterpreter &interpreter, 
+    const char *name, 
+    const char *help, 
+    const char *syntax, 
+    uint32_t flags
+) :
+    m_interpreter (interpreter),
+    m_cmd_name (name),
+    m_cmd_help_short (),
+    m_cmd_help_long (),
+    m_cmd_syntax (),
+    m_is_alias (false),
+    m_flags (flags),
+    m_arguments(),
+    m_command_override_callback (NULL),
+    m_command_override_baton (NULL)
+{
+    if (help && help[0])
+        m_cmd_help_short = help;
+    if (syntax && syntax[0])
+        m_cmd_syntax = syntax;
+}
+
+CommandObject::~CommandObject ()
+{
+}
+
+const char *
+CommandObject::GetHelp ()
+{
+    return m_cmd_help_short.c_str();
+}
+
+const char *
+CommandObject::GetHelpLong ()
+{
+    return m_cmd_help_long.c_str();
+}
+
+const char *
+CommandObject::GetSyntax ()
+{
+    if (m_cmd_syntax.length() == 0)
+    {
+        StreamString syntax_str;
+        syntax_str.Printf ("%s", GetCommandName());
+        if (GetOptions() != NULL)
+            syntax_str.Printf (" <cmd-options>");
+        if (m_arguments.size() > 0)
+        {
+            syntax_str.Printf (" ");
+            if (WantsRawCommandString() && GetOptions() && GetOptions()->NumCommandOptions())
+                syntax_str.Printf("-- ");
+            GetFormattedCommandArguments (syntax_str);
+        }
+        m_cmd_syntax = syntax_str.GetData ();
+    }
+
+    return m_cmd_syntax.c_str();
+}
+
+const char *
+CommandObject::GetCommandName ()
+{
+    return m_cmd_name.c_str();
+}
+
+void
+CommandObject::SetCommandName (const char *name)
+{
+    m_cmd_name = name;
+}
+
+void
+CommandObject::SetHelp (const char *cstr)
+{
+    m_cmd_help_short = cstr;
+}
+
+void
+CommandObject::SetHelpLong (const char *cstr)
+{
+    m_cmd_help_long = cstr;
+}
+
+void
+CommandObject::SetHelpLong (std::string str)
+{
+    m_cmd_help_long = str;
+}
+
+void
+CommandObject::SetSyntax (const char *cstr)
+{
+    m_cmd_syntax = cstr;
+}
+
+Options *
+CommandObject::GetOptions ()
+{
+    // By default commands don't have options unless this virtual function
+    // is overridden by base classes.
+    return NULL;
+}
+
+bool
+CommandObject::ParseOptions
+(
+    Args& args,
+    CommandReturnObject &result
+)
+{
+    // See if the subclass has options?
+    Options *options = GetOptions();
+    if (options != NULL)
+    {
+        Error error;
+        options->NotifyOptionParsingStarting();
+
+        // ParseOptions calls getopt_long_only, which always skips the zero'th item in the array and starts at position 1,
+        // so we need to push a dummy value into position zero.
+        args.Unshift("dummy_string");
+        error = args.ParseOptions (*options);
+
+        // The "dummy_string" will have already been removed by ParseOptions,
+        // so no need to remove it.
+
+        if (error.Success())
+            error = options->NotifyOptionParsingFinished();
+
+        if (error.Success())
+        {
+            if (options->VerifyOptions (result))
+                return true;
+        }
+        else
+        {
+            const char *error_cstr = error.AsCString();
+            if (error_cstr)
+            {
+                // We got an error string, lets use that
+                result.AppendError(error_cstr);
+            }
+            else
+            {
+                // No error string, output the usage information into result
+                options->GenerateOptionUsage (result.GetErrorStream(), this);
+            }
+        }
+        result.SetStatus (eReturnStatusFailed);
+        return false;
+    }
+    return true;
+}
+
+
+
+bool
+CommandObject::CheckRequirements (CommandReturnObject &result)
+{
+#ifdef LLDB_CONFIGURATION_DEBUG
+    // Nothing should be stored in m_exe_ctx between running commands as m_exe_ctx
+    // has shared pointers to the target, process, thread and frame and we don't
+    // want any CommandObject instances to keep any of these objects around
+    // longer than for a single command. Every command should call
+    // CommandObject::Cleanup() after it has completed
+    assert (m_exe_ctx.GetTargetPtr() == NULL);
+    assert (m_exe_ctx.GetProcessPtr() == NULL);
+    assert (m_exe_ctx.GetThreadPtr() == NULL);
+    assert (m_exe_ctx.GetFramePtr() == NULL);
+#endif
+
+    // Lock down the interpreter's execution context prior to running the
+    // command so we guarantee the selected target, process, thread and frame
+    // can't go away during the execution
+    m_exe_ctx = m_interpreter.GetExecutionContext();
+
+    const uint32_t flags = GetFlags().Get();
+    if (flags & (eFlagRequiresTarget   |
+                 eFlagRequiresProcess  |
+                 eFlagRequiresThread   |
+                 eFlagRequiresFrame    |
+                 eFlagTryTargetAPILock ))
+    {
+
+        if ((flags & eFlagRequiresTarget) && !m_exe_ctx.HasTargetScope())
+        {
+            result.AppendError (GetInvalidTargetDescription());
+            return false;
+        }
+
+        if ((flags & eFlagRequiresProcess) && !m_exe_ctx.HasProcessScope())
+        {
+            result.AppendError (GetInvalidProcessDescription());
+            return false;
+        }
+        
+        if ((flags & eFlagRequiresThread) && !m_exe_ctx.HasThreadScope())
+        {
+            result.AppendError (GetInvalidThreadDescription());
+            return false;
+        }
+        
+        if ((flags & eFlagRequiresFrame) && !m_exe_ctx.HasFrameScope())
+        {
+            result.AppendError (GetInvalidFrameDescription());
+            return false;
+        }
+        
+        if ((flags & eFlagRequiresRegContext) && (m_exe_ctx.GetRegisterContext() == NULL))
+        {
+            result.AppendError (GetInvalidRegContextDescription());
+            return false;
+        }
+
+        if (flags & eFlagTryTargetAPILock)
+        {
+            Target *target = m_exe_ctx.GetTargetPtr();
+            if (target)
+            {
+                if (m_api_locker.TryLock (target->GetAPIMutex(), NULL) == false)
+                {
+                    result.AppendError ("failed to get API lock");
+                    return false;
+                }
+            }
+        }
+    }
+
+    if (GetFlags().AnySet (CommandObject::eFlagProcessMustBeLaunched | CommandObject::eFlagProcessMustBePaused))
+    {
+        Process *process = m_interpreter.GetExecutionContext().GetProcessPtr();
+        if (process == NULL)
+        {
+            // A process that is not running is considered paused.
+            if (GetFlags().Test(CommandObject::eFlagProcessMustBeLaunched))
+            {
+                result.AppendError ("Process must exist.");
+                result.SetStatus (eReturnStatusFailed);
+                return false;
+            }
+        }
+        else
+        {
+            StateType state = process->GetState();
+            switch (state)
+            {
+            case eStateInvalid:
+            case eStateSuspended:
+            case eStateCrashed:
+            case eStateStopped:
+                break;
+            
+            case eStateConnected:
+            case eStateAttaching:
+            case eStateLaunching:
+            case eStateDetached:
+            case eStateExited:
+            case eStateUnloaded:
+                if (GetFlags().Test(CommandObject::eFlagProcessMustBeLaunched))
+                {
+                    result.AppendError ("Process must be launched.");
+                    result.SetStatus (eReturnStatusFailed);
+                    return false;
+                }
+                break;
+
+            case eStateRunning:
+            case eStateStepping:
+                if (GetFlags().Test(CommandObject::eFlagProcessMustBePaused))
+                {
+                    result.AppendError ("Process is running.  Use 'process interrupt' to pause execution.");
+                    result.SetStatus (eReturnStatusFailed);
+                    return false;
+                }
+            }
+        }
+    }
+    return true;
+}
+
+void
+CommandObject::Cleanup ()
+{
+    m_exe_ctx.Clear();
+    m_api_locker.Unlock();
+}
+
+
+class CommandDictCommandPartialMatch
+{
+    public:
+        CommandDictCommandPartialMatch (const char *match_str)
+        {
+            m_match_str = match_str;
+        }
+        bool operator() (const std::pair<std::string, lldb::CommandObjectSP> map_element) const
+        {
+            // A NULL or empty string matches everything.
+            if (m_match_str == NULL || *m_match_str == '\0')
+                return true;
+
+            return map_element.first.find (m_match_str, 0) == 0;
+        }
+
+    private:
+        const char *m_match_str;
+};
+
+int
+CommandObject::AddNamesMatchingPartialString (CommandObject::CommandMap &in_map, const char *cmd_str,
+                                              StringList &matches)
+{
+    int number_added = 0;
+    CommandDictCommandPartialMatch matcher(cmd_str);
+
+    CommandObject::CommandMap::iterator matching_cmds = std::find_if (in_map.begin(), in_map.end(), matcher);
+
+    while (matching_cmds != in_map.end())
+    {
+        ++number_added;
+        matches.AppendString((*matching_cmds).first.c_str());
+        matching_cmds = std::find_if (++matching_cmds, in_map.end(), matcher);;
+    }
+    return number_added;
+}
+
+int
+CommandObject::HandleCompletion
+(
+    Args &input,
+    int &cursor_index,
+    int &cursor_char_position,
+    int match_start_point,
+    int max_return_elements,
+    bool &word_complete,
+    StringList &matches
+)
+{
+    // Default implmentation of WantsCompletion() is !WantsRawCommandString().
+    // Subclasses who want raw command string but desire, for example,
+    // argument completion should override WantsCompletion() to return true,
+    // instead.
+    if (WantsRawCommandString() && !WantsCompletion())
+    {
+        // FIXME: Abstract telling the completion to insert the completion character.
+        matches.Clear();
+        return -1;
+    }
+    else
+    {
+        // Can we do anything generic with the options?
+        Options *cur_options = GetOptions();
+        CommandReturnObject result;
+        OptionElementVector opt_element_vector;
+
+        if (cur_options != NULL)
+        {
+            // Re-insert the dummy command name string which will have been
+            // stripped off:
+            input.Unshift ("dummy-string");
+            cursor_index++;
+
+
+            // I stick an element on the end of the input, because if the last element is
+            // option that requires an argument, getopt_long_only will freak out.
+
+            input.AppendArgument ("<FAKE-VALUE>");
+
+            input.ParseArgsForCompletion (*cur_options, opt_element_vector, cursor_index);
+
+            input.DeleteArgumentAtIndex(input.GetArgumentCount() - 1);
+
+            bool handled_by_options;
+            handled_by_options = cur_options->HandleOptionCompletion (input,
+                                                                      opt_element_vector,
+                                                                      cursor_index,
+                                                                      cursor_char_position,
+                                                                      match_start_point,
+                                                                      max_return_elements,
+                                                                      word_complete,
+                                                                      matches);
+            if (handled_by_options)
+                return matches.GetSize();
+        }
+
+        // If we got here, the last word is not an option or an option argument.
+        return HandleArgumentCompletion (input,
+                                         cursor_index,
+                                         cursor_char_position,
+                                         opt_element_vector,
+                                         match_start_point,
+                                         max_return_elements,
+                                         word_complete,
+                                         matches);
+    }
+}
+
+bool
+CommandObject::HelpTextContainsWord (const char *search_word)
+{
+    std::string options_usage_help;
+
+    bool found_word = false;
+
+    const char *short_help = GetHelp();
+    const char *long_help = GetHelpLong();
+    const char *syntax_help = GetSyntax();
+    
+    if (short_help && strcasestr (short_help, search_word))
+        found_word = true;
+    else if (long_help && strcasestr (long_help, search_word))
+        found_word = true;
+    else if (syntax_help && strcasestr (syntax_help, search_word))
+        found_word = true;
+
+    if (!found_word
+        && GetOptions() != NULL)
+    {
+        StreamString usage_help;
+        GetOptions()->GenerateOptionUsage (usage_help, this);
+        if (usage_help.GetSize() > 0)
+        {
+            const char *usage_text = usage_help.GetData();
+            if (strcasestr (usage_text, search_word))
+              found_word = true;
+        }
+    }
+
+    return found_word;
+}
+
+int
+CommandObject::GetNumArgumentEntries  ()
+{
+    return m_arguments.size();
+}
+
+CommandObject::CommandArgumentEntry *
+CommandObject::GetArgumentEntryAtIndex (int idx)
+{
+    if (idx < m_arguments.size())
+        return &(m_arguments[idx]);
+
+    return NULL;
+}
+
+CommandObject::ArgumentTableEntry *
+CommandObject::FindArgumentDataByType (CommandArgumentType arg_type)
+{
+    const ArgumentTableEntry *table = CommandObject::GetArgumentTable();
+
+    for (int i = 0; i < eArgTypeLastArg; ++i)
+        if (table[i].arg_type == arg_type)
+            return (ArgumentTableEntry *) &(table[i]);
+
+    return NULL;
+}
+
+void
+CommandObject::GetArgumentHelp (Stream &str, CommandArgumentType arg_type, CommandInterpreter &interpreter)
+{
+    const ArgumentTableEntry* table = CommandObject::GetArgumentTable();
+    ArgumentTableEntry *entry = (ArgumentTableEntry *) &(table[arg_type]);
+    
+    // The table is *supposed* to be kept in arg_type order, but someone *could* have messed it up...
+
+    if (entry->arg_type != arg_type)
+        entry = CommandObject::FindArgumentDataByType (arg_type);
+
+    if (!entry)
+        return;
+
+    StreamString name_str;
+    name_str.Printf ("<%s>", entry->arg_name);
+
+    if (entry->help_function)
+    {
+        const char* help_text = entry->help_function();
+        if (!entry->help_function.self_formatting)
+        {
+            interpreter.OutputFormattedHelpText (str, name_str.GetData(), "--", help_text,
+                                                 name_str.GetSize());
+        }
+        else
+        {
+            interpreter.OutputHelpText(str, name_str.GetData(), "--", help_text,
+                                       name_str.GetSize());
+        }
+    }
+    else
+        interpreter.OutputFormattedHelpText (str, name_str.GetData(), "--", entry->help_text, name_str.GetSize());
+}
+
+const char *
+CommandObject::GetArgumentName (CommandArgumentType arg_type)
+{
+    ArgumentTableEntry *entry = (ArgumentTableEntry *) &(CommandObject::GetArgumentTable()[arg_type]);
+
+    // The table is *supposed* to be kept in arg_type order, but someone *could* have messed it up...
+
+    if (entry->arg_type != arg_type)
+        entry = CommandObject::FindArgumentDataByType (arg_type);
+
+    if (entry)
+        return entry->arg_name;
+
+    StreamString str;
+    str << "Arg name for type (" << arg_type << ") not in arg table!";
+    return str.GetData();
+}
+
+bool
+CommandObject::IsPairType (ArgumentRepetitionType arg_repeat_type)
+{
+    if ((arg_repeat_type == eArgRepeatPairPlain)
+        ||  (arg_repeat_type == eArgRepeatPairOptional)
+        ||  (arg_repeat_type == eArgRepeatPairPlus)
+        ||  (arg_repeat_type == eArgRepeatPairStar)
+        ||  (arg_repeat_type == eArgRepeatPairRange)
+        ||  (arg_repeat_type == eArgRepeatPairRangeOptional))
+        return true;
+
+    return false;
+}
+
+static CommandObject::CommandArgumentEntry
+OptSetFiltered(uint32_t opt_set_mask, CommandObject::CommandArgumentEntry &cmd_arg_entry)
+{
+    CommandObject::CommandArgumentEntry ret_val;
+    for (unsigned i = 0; i < cmd_arg_entry.size(); ++i)
+        if (opt_set_mask & cmd_arg_entry[i].arg_opt_set_association)
+            ret_val.push_back(cmd_arg_entry[i]);
+    return ret_val;
+}
+
+// Default parameter value of opt_set_mask is LLDB_OPT_SET_ALL, which means take
+// all the argument data into account.  On rare cases where some argument sticks
+// with certain option sets, this function returns the option set filtered args.
+void
+CommandObject::GetFormattedCommandArguments (Stream &str, uint32_t opt_set_mask)
+{
+    int num_args = m_arguments.size();
+    for (int i = 0; i < num_args; ++i)
+    {
+        if (i > 0)
+            str.Printf (" ");
+        CommandArgumentEntry arg_entry =
+            opt_set_mask == LLDB_OPT_SET_ALL ? m_arguments[i]
+                                             : OptSetFiltered(opt_set_mask, m_arguments[i]);
+        int num_alternatives = arg_entry.size();
+
+        if ((num_alternatives == 2)
+            && IsPairType (arg_entry[0].arg_repetition))
+        {
+            const char *first_name = GetArgumentName (arg_entry[0].arg_type);
+            const char *second_name = GetArgumentName (arg_entry[1].arg_type);
+            switch (arg_entry[0].arg_repetition)
+            {
+                case eArgRepeatPairPlain:
+                    str.Printf ("<%s> <%s>", first_name, second_name);
+                    break;
+                case eArgRepeatPairOptional:
+                    str.Printf ("[<%s> <%s>]", first_name, second_name);
+                    break;
+                case eArgRepeatPairPlus:
+                    str.Printf ("<%s> <%s> [<%s> <%s> [...]]", first_name, second_name, first_name, second_name);
+                    break;
+                case eArgRepeatPairStar:
+                    str.Printf ("[<%s> <%s> [<%s> <%s> [...]]]", first_name, second_name, first_name, second_name);
+                    break;
+                case eArgRepeatPairRange:
+                    str.Printf ("<%s_1> <%s_1> ... <%s_n> <%s_n>", first_name, second_name, first_name, second_name);
+                    break;
+                case eArgRepeatPairRangeOptional:
+                    str.Printf ("[<%s_1> <%s_1> ... <%s_n> <%s_n>]", first_name, second_name, first_name, second_name);
+                    break;
+                // Explicitly test for all the rest of the cases, so if new types get added we will notice the
+                // missing case statement(s).
+                case eArgRepeatPlain:
+                case eArgRepeatOptional:
+                case eArgRepeatPlus:
+                case eArgRepeatStar:
+                case eArgRepeatRange:
+                    // These should not be reached, as they should fail the IsPairType test above.
+                    break;
+            }
+        }
+        else
+        {
+            StreamString names;
+            for (int j = 0; j < num_alternatives; ++j)
+            {
+                if (j > 0)
+                    names.Printf (" | ");
+                names.Printf ("%s", GetArgumentName (arg_entry[j].arg_type));
+            }
+            switch (arg_entry[0].arg_repetition)
+            {
+                case eArgRepeatPlain:
+                    str.Printf ("<%s>", names.GetData());
+                    break;
+                case eArgRepeatPlus:
+                    str.Printf ("<%s> [<%s> [...]]", names.GetData(), names.GetData());
+                    break;
+                case eArgRepeatStar:
+                    str.Printf ("[<%s> [<%s> [...]]]", names.GetData(), names.GetData());
+                    break;
+                case eArgRepeatOptional:
+                    str.Printf ("[<%s>]", names.GetData());
+                    break;
+                case eArgRepeatRange:
+                    str.Printf ("<%s_1> .. <%s_n>", names.GetData(), names.GetData());
+                    break;
+                // Explicitly test for all the rest of the cases, so if new types get added we will notice the
+                // missing case statement(s).
+                case eArgRepeatPairPlain:
+                case eArgRepeatPairOptional:
+                case eArgRepeatPairPlus:
+                case eArgRepeatPairStar:
+                case eArgRepeatPairRange:
+                case eArgRepeatPairRangeOptional:
+                    // These should not be hit, as they should pass the IsPairType test above, and control should
+                    // have gone into the other branch of the if statement.
+                    break;
+            }
+        }
+    }
+}
+
+CommandArgumentType
+CommandObject::LookupArgumentName (const char *arg_name)
+{
+    CommandArgumentType return_type = eArgTypeLastArg;
+
+    std::string arg_name_str (arg_name);
+    size_t len = arg_name_str.length();
+    if (arg_name[0] == '<'
+        && arg_name[len-1] == '>')
+        arg_name_str = arg_name_str.substr (1, len-2);
+
+    const ArgumentTableEntry *table = GetArgumentTable();
+    for (int i = 0; i < eArgTypeLastArg; ++i)
+        if (arg_name_str.compare (table[i].arg_name) == 0)
+            return_type = g_arguments_data[i].arg_type;
+
+    return return_type;
+}
+
+static const char *
+RegisterNameHelpTextCallback ()
+{
+    return "Register names can be specified using the architecture specific names.  "
+    "They can also be specified using generic names.  Not all generic entities have "
+    "registers backing them on all architectures.  When they don't the generic name "
+    "will return an error.\n"
+    "The generic names defined in lldb are:\n"
+    "\n"
+    "pc       - program counter register\n"
+    "ra       - return address register\n"
+    "fp       - frame pointer register\n"
+    "sp       - stack pointer register\n"
+    "flags    - the flags register\n"
+    "arg{1-6} - integer argument passing registers.\n";
+}
+
+static const char *
+BreakpointIDHelpTextCallback ()
+{
+    return "Breakpoint ID's consist major and minor numbers;  the major number "
+    "corresponds to the single entity that was created with a 'breakpoint set' "
+    "command; the minor numbers correspond to all the locations that were actually "
+    "found/set based on the major breakpoint.  A full breakpoint ID might look like "
+    "3.14, meaning the 14th location set for the 3rd breakpoint.  You can specify "
+    "all the locations of a breakpoint by just indicating the major breakpoint "
+    "number. A valid breakpoint id consists either of just the major id number, "
+    "or the major number, a dot, and the location number (e.g. 3 or 3.2 could "
+    "both be valid breakpoint ids).";
+}
+
+static const char *
+BreakpointIDRangeHelpTextCallback ()
+{
+    return "A 'breakpoint id list' is a manner of specifying multiple breakpoints. "
+    "This can be done  through several mechanisms.  The easiest way is to just "
+    "enter a space-separated list of breakpoint ids.  To specify all the "
+    "breakpoint locations under a major breakpoint, you can use the major "
+    "breakpoint number followed by '.*', eg. '5.*' means all the locations under "
+    "breakpoint 5.  You can also indicate a range of breakpoints by using "
+    "<start-bp-id> - <end-bp-id>.  The start-bp-id and end-bp-id for a range can "
+    "be any valid breakpoint ids.  It is not legal, however, to specify a range "
+    "using specific locations that cross major breakpoint numbers.  I.e. 3.2 - 3.7"
+    " is legal; 2 - 5 is legal; but 3.2 - 4.4 is not legal.";
+}
+
+static const char *
+GDBFormatHelpTextCallback ()
+{
+    return "A GDB format consists of a repeat count, a format letter and a size letter. "
+    "The repeat count is optional and defaults to 1. The format letter is optional "
+    "and defaults to the previous format that was used. The size letter is optional "
+    "and defaults to the previous size that was used.\n"
+    "\n"
+    "Format letters include:\n"
+    "o - octal\n"
+    "x - hexadecimal\n"
+    "d - decimal\n"
+    "u - unsigned decimal\n"
+    "t - binary\n"
+    "f - float\n"
+    "a - address\n"
+    "i - instruction\n"
+    "c - char\n"
+    "s - string\n"
+    "T - OSType\n"
+    "A - float as hex\n"
+    "\n"
+    "Size letters include:\n"
+    "b - 1 byte  (byte)\n"
+    "h - 2 bytes (halfword)\n"
+    "w - 4 bytes (word)\n"
+    "g - 8 bytes (giant)\n"
+    "\n"
+    "Example formats:\n"
+    "32xb - show 32 1 byte hexadecimal integer values\n"
+    "16xh - show 16 2 byte hexadecimal integer values\n"
+    "64   - show 64 2 byte hexadecimal integer values (format and size from the last format)\n"
+    "dw   - show 1 4 byte decimal integer value\n"
+    ;
+} 
+
+static const char *
+FormatHelpTextCallback ()
+{
+    
+    static char* help_text_ptr = NULL;
+    
+    if (help_text_ptr)
+        return help_text_ptr;
+    
+    StreamString sstr;
+    sstr << "One of the format names (or one-character names) that can be used to show a variable's value:\n";
+    for (Format f = eFormatDefault; f < kNumFormats; f = Format(f+1))
+    {
+        if (f != eFormatDefault)
+            sstr.PutChar('\n');
+        
+        char format_char = FormatManager::GetFormatAsFormatChar(f);
+        if (format_char)
+            sstr.Printf("'%c' or ", format_char);
+        
+        sstr.Printf ("\"%s\"", FormatManager::GetFormatAsCString(f));
+    }
+    
+    sstr.Flush();
+    
+    std::string data = sstr.GetString();
+    
+    help_text_ptr = new char[data.length()+1];
+    
+    data.copy(help_text_ptr, data.length());
+    
+    return help_text_ptr;
+}
+
+static const char *
+LanguageTypeHelpTextCallback ()
+{
+    static char* help_text_ptr = NULL;
+    
+    if (help_text_ptr)
+        return help_text_ptr;
+    
+    StreamString sstr;
+    sstr << "One of the following languages:\n";
+    
+    for (unsigned int l = eLanguageTypeUnknown; l < eNumLanguageTypes; ++l)
+    {
+        sstr << "  " << LanguageRuntime::GetNameForLanguageType(static_cast<LanguageType>(l)) << "\n";
+    }
+    
+    sstr.Flush();
+    
+    std::string data = sstr.GetString();
+    
+    help_text_ptr = new char[data.length()+1];
+    
+    data.copy(help_text_ptr, data.length());
+    
+    return help_text_ptr;
+}
+
+static const char *
+SummaryStringHelpTextCallback()
+{
+    return
+        "A summary string is a way to extract information from variables in order to present them using a summary.\n"
+        "Summary strings contain static text, variables, scopes and control sequences:\n"
+        "  - Static text can be any sequence of non-special characters, i.e. anything but '{', '}', '$', or '\\'.\n"
+        "  - Variables are sequences of characters beginning with ${, ending with } and that contain symbols in the format described below.\n"
+        "  - Scopes are any sequence of text between { and }. Anything included in a scope will only appear in the output summary if there were no errors.\n"
+        "  - Control sequences are the usual C/C++ '\\a', '\\n', ..., plus '\\$', '\\{' and '\\}'.\n"
+        "A summary string works by copying static text verbatim, turning control sequences into their character counterpart, expanding variables and trying to expand scopes.\n"
+        "A variable is expanded by giving it a value other than its textual representation, and the way this is done depends on what comes after the ${ marker.\n"
+        "The most common sequence if ${var followed by an expression path, which is the text one would type to access a member of an aggregate types, given a variable of that type"
+        " (e.g. if type T has a member named x, which has a member named y, and if t is of type T, the expression path would be .x.y and the way to fit that into a summary string would be"
+        " ${var.x.y}). You can also use ${*var followed by an expression path and in that case the object referred by the path will be dereferenced before being displayed."
+        " If the object is not a pointer, doing so will cause an error. For additional details on expression paths, you can type 'help expr-path'. \n"
+        "By default, summary strings attempt to display the summary for any variable they reference, and if that fails the value. If neither can be shown, nothing is displayed."
+        "In a summary string, you can also use an array index [n], or a slice-like range [n-m]. This can have two different meanings depending on what kind of object the expression"
+        " path refers to:\n"
+        "  - if it is a scalar type (any basic type like int, float, ...) the expression is a bitfield, i.e. the bits indicated by the indexing operator are extracted out of the number"
+        " and displayed as an individual variable\n"
+        "  - if it is an array or pointer the array items indicated by the indexing operator are shown as the result of the variable. if the expression is an array, real array items are"
+        " printed; if it is a pointer, the pointer-as-array syntax is used to obtain the values (this means, the latter case can have no range checking)\n"
+        "If you are trying to display an array for which the size is known, you can also use [] instead of giving an exact range. This has the effect of showing items 0 thru size - 1.\n"
+        "Additionally, a variable can contain an (optional) format code, as in ${var.x.y%code}, where code can be any of the valid formats described in 'help format', or one of the"
+        " special symbols only allowed as part of a variable:\n"
+        "    %V: show the value of the object by default\n"
+        "    %S: show the summary of the object by default\n"
+        "    %@: show the runtime-provided object description (for Objective-C, it calls NSPrintForDebugger; for C/C++ it does nothing)\n"
+        "    %L: show the location of the object (memory address or a register name)\n"
+        "    %#: show the number of children of the object\n"
+        "    %T: show the type of the object\n"
+        "Another variable that you can use in summary strings is ${svar . This sequence works exactly like ${var, including the fact that ${*svar is an allowed sequence, but uses"
+        " the object's synthetic children provider instead of the actual objects. For instance, if you are using STL synthetic children providers, the following summary string would"
+        " count the number of actual elements stored in an std::list:\n"
+        "type summary add -s \"${svar%#}\" -x \"std::list<\"";
+}
+
+static const char *
+ExprPathHelpTextCallback()
+{
+    return
+    "An expression path is the sequence of symbols that is used in C/C++ to access a member variable of an aggregate object (class).\n"
+    "For instance, given a class:\n"
+    "  class foo {\n"
+    "      int a;\n"
+    "      int b; .\n"
+    "      foo* next;\n"
+    "  };\n"
+    "the expression to read item b in the item pointed to by next for foo aFoo would be aFoo.next->b.\n"
+    "Given that aFoo could just be any object of type foo, the string '.next->b' is the expression path, because it can be attached to any foo instance to achieve the effect.\n"
+    "Expression paths in LLDB include dot (.) and arrow (->) operators, and most commands using expression paths have ways to also accept the star (*) operator.\n"
+    "The meaning of these operators is the same as the usual one given to them by the C/C++ standards.\n"
+    "LLDB also has support for indexing ([ ]) in expression paths, and extends the traditional meaning of the square brackets operator to allow bitfield extraction:\n"
+    "for objects of native types (int, float, char, ...) saying '[n-m]' as an expression path (where n and m are any positive integers, e.g. [3-5]) causes LLDB to extract"
+    " bits n thru m from the value of the variable. If n == m, [n] is also allowed as a shortcut syntax. For arrays and pointers, expression paths can only contain one index"
+    " and the meaning of the operation is the same as the one defined by C/C++ (item extraction). Some commands extend bitfield-like syntax for arrays and pointers with the"
+    " meaning of array slicing (taking elements n thru m inside the array or pointed-to memory).";
+}
+
+void
+CommandObject::GenerateHelpText (CommandReturnObject &result)
+{
+    GenerateHelpText(result.GetOutputStream());
+    
+    result.SetStatus (eReturnStatusSuccessFinishNoResult);
+}
+
+void
+CommandObject::GenerateHelpText (Stream &output_strm)
+{
+    CommandInterpreter& interpreter = GetCommandInterpreter();
+    if (GetOptions() != NULL)
+    {
+        if (WantsRawCommandString())
+        {
+            std::string help_text (GetHelp());
+            help_text.append ("  This command takes 'raw' input (no need to quote stuff).");
+            interpreter.OutputFormattedHelpText (output_strm, "", "", help_text.c_str(), 1);
+        }
+        else
+            interpreter.OutputFormattedHelpText (output_strm, "", "", GetHelp(), 1);
+        output_strm.Printf ("\nSyntax: %s\n", GetSyntax());
+        GetOptions()->GenerateOptionUsage (output_strm, this);
+        const char *long_help = GetHelpLong();
+        if ((long_help != NULL)
+            && (strlen (long_help) > 0))
+            output_strm.Printf ("\n%s", long_help);
+        if (WantsRawCommandString() && !WantsCompletion())
+        {
+            // Emit the message about using ' -- ' between the end of the command options and the raw input
+            // conditionally, i.e., only if the command object does not want completion.
+            interpreter.OutputFormattedHelpText (output_strm, "", "",
+                                                 "\nIMPORTANT NOTE:  Because this command takes 'raw' input, if you use any command options"
+                                                 " you must use ' -- ' between the end of the command options and the beginning of the raw input.", 1);
+        }
+        else if (GetNumArgumentEntries() > 0
+                 && GetOptions()
+                 && GetOptions()->NumCommandOptions() > 0)
+        {
+            // Also emit a warning about using "--" in case you are using a command that takes options and arguments.
+            interpreter.OutputFormattedHelpText (output_strm, "", "",
+                                                 "\nThis command takes options and free-form arguments.  If your arguments resemble"
+                                                 " option specifiers (i.e., they start with a - or --), you must use ' -- ' between"
+                                                 " the end of the command options and the beginning of the arguments.", 1);
+        }
+    }
+    else if (IsMultiwordObject())
+    {
+        if (WantsRawCommandString())
+        {
+            std::string help_text (GetHelp());
+            help_text.append ("  This command takes 'raw' input (no need to quote stuff).");
+            interpreter.OutputFormattedHelpText (output_strm, "", "", help_text.c_str(), 1);
+        }
+        else
+            interpreter.OutputFormattedHelpText (output_strm, "", "", GetHelp(), 1);
+        GenerateHelpText (output_strm);
+    }
+    else
+    {
+        const char *long_help = GetHelpLong();
+        if ((long_help != NULL)
+            && (strlen (long_help) > 0))
+            output_strm.Printf ("%s", long_help);
+        else if (WantsRawCommandString())
+        {
+            std::string help_text (GetHelp());
+            help_text.append ("  This command takes 'raw' input (no need to quote stuff).");
+            interpreter.OutputFormattedHelpText (output_strm, "", "", help_text.c_str(), 1);
+        }
+        else
+            interpreter.OutputFormattedHelpText (output_strm, "", "", GetHelp(), 1);
+        output_strm.Printf ("\nSyntax: %s\n", GetSyntax());
+    }
+}
+
+void
+CommandObject::AddIDsArgumentData(CommandArgumentEntry &arg, CommandArgumentType ID, CommandArgumentType IDRange)
+{
+    CommandArgumentData id_arg;
+    CommandArgumentData id_range_arg;
+
+    // Create the first variant for the first (and only) argument for this command.
+    id_arg.arg_type = ID;
+    id_arg.arg_repetition = eArgRepeatOptional;
+
+    // Create the second variant for the first (and only) argument for this command.
+    id_range_arg.arg_type = IDRange;
+    id_range_arg.arg_repetition = eArgRepeatOptional;
+
+    // The first (and only) argument for this command could be either an id or an id_range.
+    // Push both variants into the entry for the first argument for this command.
+    arg.push_back(id_arg);
+    arg.push_back(id_range_arg);
+}
+
+const char * 
+CommandObject::GetArgumentTypeAsCString (const lldb::CommandArgumentType arg_type)
+{
+    if (arg_type >=0 && arg_type < eArgTypeLastArg)
+        return g_arguments_data[arg_type].arg_name;
+    return NULL;
+
+}
+
+const char * 
+CommandObject::GetArgumentDescriptionAsCString (const lldb::CommandArgumentType arg_type)
+{
+    if (arg_type >=0 && arg_type < eArgTypeLastArg)
+        return g_arguments_data[arg_type].help_text;
+    return NULL;
+}
+
+bool
+CommandObjectParsed::Execute (const char *args_string, CommandReturnObject &result)
+{
+    CommandOverrideCallback command_callback = GetOverrideCallback();
+    bool handled = false;
+    Args cmd_args (args_string);
+    if (command_callback)
+    {
+        Args full_args (GetCommandName ());
+        full_args.AppendArguments(cmd_args);
+        handled = command_callback (GetOverrideCallbackBaton(), full_args.GetConstArgumentVector());
+    }
+    if (!handled)
+    {
+        for (size_t i = 0; i < cmd_args.GetArgumentCount();  ++i)
+        {
+            const char *tmp_str = cmd_args.GetArgumentAtIndex (i);
+            if (tmp_str[0] == '`')  // back-quote
+                cmd_args.ReplaceArgumentAtIndex (i, m_interpreter.ProcessEmbeddedScriptCommands (tmp_str));
+        }
+
+        if (CheckRequirements(result))
+        {
+            if (ParseOptions (cmd_args, result))
+            {
+                // Call the command-specific version of 'Execute', passing it the already processed arguments.
+                handled = DoExecute (cmd_args, result);
+            }
+        }
+
+        Cleanup();
+    }
+    return handled;
+}
+
+bool
+CommandObjectRaw::Execute (const char *args_string, CommandReturnObject &result)
+{
+    CommandOverrideCallback command_callback = GetOverrideCallback();
+    bool handled = false;
+    if (command_callback)
+    {
+        std::string full_command (GetCommandName ());
+        full_command += ' ';
+        full_command += args_string;
+        const char *argv[2] = { NULL, NULL };
+        argv[0] = full_command.c_str();
+        handled = command_callback (GetOverrideCallbackBaton(), argv);
+    }
+    if (!handled)
+    {
+        if (CheckRequirements(result))
+            handled = DoExecute (args_string, result);
+        
+        Cleanup();
+    }
+    return handled;
+}
+
+static
+const char *arch_helper()
+{
+    static StreamString g_archs_help;
+    if (g_archs_help.Empty())
+    {
+        StringList archs;
+        ArchSpec::AutoComplete(NULL, archs);
+        g_archs_help.Printf("These are the supported architecture names:\n");
+        archs.Join("\n", g_archs_help);
+    }
+    return g_archs_help.GetData();
+}
+
+CommandObject::ArgumentTableEntry
+CommandObject::g_arguments_data[] =
+{
+    { eArgTypeAddress, "address", CommandCompletions::eNoCompletion, { NULL, false }, "A valid address in the target program's execution space." },
+    { eArgTypeAddressOrExpression, "address-expression", CommandCompletions::eNoCompletion, { NULL, false }, "An expression that resolves to an address." },
+    { eArgTypeAliasName, "alias-name", CommandCompletions::eNoCompletion, { NULL, false }, "The name of an abbreviation (alias) for a debugger command." },
+    { eArgTypeAliasOptions, "options-for-aliased-command", CommandCompletions::eNoCompletion, { NULL, false }, "Command options to be used as part of an alias (abbreviation) definition.  (See 'help commands alias' for more information.)" },
+    { eArgTypeArchitecture, "arch", CommandCompletions::eArchitectureCompletion, { arch_helper, true }, "The architecture name, e.g. i386 or x86_64." },
+    { eArgTypeBoolean, "boolean", CommandCompletions::eNoCompletion, { NULL, false }, "A Boolean value: 'true' or 'false'" },
+    { eArgTypeBreakpointID, "breakpt-id", CommandCompletions::eNoCompletion, { BreakpointIDHelpTextCallback, false }, NULL },
+    { eArgTypeBreakpointIDRange, "breakpt-id-list", CommandCompletions::eNoCompletion, { BreakpointIDRangeHelpTextCallback, false }, NULL },
+    { eArgTypeByteSize, "byte-size", CommandCompletions::eNoCompletion, { NULL, false }, "Number of bytes to use." },
+    { eArgTypeClassName, "class-name", CommandCompletions::eNoCompletion, { NULL, false }, "Then name of a class from the debug information in the program." },
+    { eArgTypeCommandName, "cmd-name", CommandCompletions::eNoCompletion, { NULL, false }, "A debugger command (may be multiple words), without any options or arguments." },
+    { eArgTypeCount, "count", CommandCompletions::eNoCompletion, { NULL, false }, "An unsigned integer." },
+    { eArgTypeDirectoryName, "directory", CommandCompletions::eDiskDirectoryCompletion, { NULL, false }, "A directory name." },
+    { eArgTypeDisassemblyFlavor, "disassembly-flavor", CommandCompletions::eNoCompletion, { NULL, false }, "A disassembly flavor recognized by your disassembly plugin.  Currently the only valid options are \"att\" and \"intel\" for Intel targets" },
+    { eArgTypeEndAddress, "end-address", CommandCompletions::eNoCompletion, { NULL, false }, "Help text goes here." },
+    { eArgTypeExpression, "expr", CommandCompletions::eNoCompletion, { NULL, false }, "Help text goes here." },
+    { eArgTypeExpressionPath, "expr-path", CommandCompletions::eNoCompletion, { ExprPathHelpTextCallback, true }, NULL },
+    { eArgTypeExprFormat, "expression-format", CommandCompletions::eNoCompletion, { NULL, false }, "[ [bool|b] | [bin] | [char|c] | [oct|o] | [dec|i|d|u] | [hex|x] | [float|f] | [cstr|s] ]" },
+    { eArgTypeFilename, "filename", CommandCompletions::eDiskFileCompletion, { NULL, false }, "The name of a file (can include path)." },
+    { eArgTypeFormat, "format", CommandCompletions::eNoCompletion, { FormatHelpTextCallback, true }, NULL },
+    { eArgTypeFrameIndex, "frame-index", CommandCompletions::eNoCompletion, { NULL, false }, "Index into a thread's list of frames." },
+    { eArgTypeFullName, "fullname", CommandCompletions::eNoCompletion, { NULL, false }, "Help text goes here." },
+    { eArgTypeFunctionName, "function-name", CommandCompletions::eNoCompletion, { NULL, false }, "The name of a function." },
+    { eArgTypeFunctionOrSymbol, "function-or-symbol", CommandCompletions::eNoCompletion, { NULL, false }, "The name of a function or symbol." },
+    { eArgTypeGDBFormat, "gdb-format", CommandCompletions::eNoCompletion, { GDBFormatHelpTextCallback, true }, NULL },
+    { eArgTypeIndex, "index", CommandCompletions::eNoCompletion, { NULL, false }, "An index into a list." },
+    { eArgTypeLanguage, "language", CommandCompletions::eNoCompletion, { LanguageTypeHelpTextCallback, true }, NULL },
+    { eArgTypeLineNum, "linenum", CommandCompletions::eNoCompletion, { NULL, false }, "Line number in a source file." },
+    { eArgTypeLogCategory, "log-category", CommandCompletions::eNoCompletion, { NULL, false }, "The name of a category within a log channel, e.g. all (try \"log list\" to see a list of all channels and their categories." },
+    { eArgTypeLogChannel, "log-channel", CommandCompletions::eNoCompletion, { NULL, false }, "The name of a log channel, e.g. process.gdb-remote (try \"log list\" to see a list of all channels and their categories)." },
+    { eArgTypeMethod, "method", CommandCompletions::eNoCompletion, { NULL, false }, "A C++ method name." },
+    { eArgTypeName, "name", CommandCompletions::eNoCompletion, { NULL, false }, "Help text goes here." },
+    { eArgTypeNewPathPrefix, "new-path-prefix", CommandCompletions::eNoCompletion, { NULL, false }, "Help text goes here." },
+    { eArgTypeNumLines, "num-lines", CommandCompletions::eNoCompletion, { NULL, false }, "The number of lines to use." },
+    { eArgTypeNumberPerLine, "number-per-line", CommandCompletions::eNoCompletion, { NULL, false }, "The number of items per line to display." },
+    { eArgTypeOffset, "offset", CommandCompletions::eNoCompletion, { NULL, false }, "Help text goes here." },
+    { eArgTypeOldPathPrefix, "old-path-prefix", CommandCompletions::eNoCompletion, { NULL, false }, "Help text goes here." },
+    { eArgTypeOneLiner, "one-line-command", CommandCompletions::eNoCompletion, { NULL, false }, "A command that is entered as a single line of text." },
+    { eArgTypePid, "pid", CommandCompletions::eNoCompletion, { NULL, false }, "The process ID number." },
+    { eArgTypePlugin, "plugin", CommandCompletions::eNoCompletion, { NULL, false }, "Help text goes here." },
+    { eArgTypeProcessName, "process-name", CommandCompletions::eNoCompletion, { NULL, false }, "The name of the process." },
+    { eArgTypePythonClass, "python-class", CommandCompletions::eNoCompletion, { NULL, false }, "The name of a Python class." },
+    { eArgTypePythonFunction, "python-function", CommandCompletions::eNoCompletion, { NULL, false }, "The name of a Python function." },
+    { eArgTypePythonScript, "python-script", CommandCompletions::eNoCompletion, { NULL, false }, "Source code written in Python." },
+    { eArgTypeQueueName, "queue-name", CommandCompletions::eNoCompletion, { NULL, false }, "The name of the thread queue." },
+    { eArgTypeRegisterName, "register-name", CommandCompletions::eNoCompletion, { RegisterNameHelpTextCallback, true }, NULL },
+    { eArgTypeRegularExpression, "regular-expression", CommandCompletions::eNoCompletion, { NULL, false }, "A regular expression." },
+    { eArgTypeRunArgs, "run-args", CommandCompletions::eNoCompletion, { NULL, false }, "Arguments to be passed to the target program when it starts executing." },
+    { eArgTypeRunMode, "run-mode", CommandCompletions::eNoCompletion, { NULL, false }, "Help text goes here." },
+    { eArgTypeScriptedCommandSynchronicity, "script-cmd-synchronicity", CommandCompletions::eNoCompletion, { NULL, false }, "The synchronicity to use to run scripted commands with regard to LLDB event system." },
+    { eArgTypeScriptLang, "script-language", CommandCompletions::eNoCompletion, { NULL, false }, "The scripting language to be used for script-based commands.  Currently only Python is valid." },
+    { eArgTypeSearchWord, "search-word", CommandCompletions::eNoCompletion, { NULL, false }, "The word for which you wish to search for information about." },
+    { eArgTypeSelector, "selector", CommandCompletions::eNoCompletion, { NULL, false }, "An Objective-C selector name." },
+    { eArgTypeSettingIndex, "setting-index", CommandCompletions::eNoCompletion, { NULL, false }, "An index into a settings variable that is an array (try 'settings list' to see all the possible settings variables and their types)." },
+    { eArgTypeSettingKey, "setting-key", CommandCompletions::eNoCompletion, { NULL, false }, "A key into a settings variables that is a dictionary (try 'settings list' to see all the possible settings variables and their types)." },
+    { eArgTypeSettingPrefix, "setting-prefix", CommandCompletions::eNoCompletion, { NULL, false }, "The name of a settable internal debugger variable up to a dot ('.'), e.g. 'target.process.'" },
+    { eArgTypeSettingVariableName, "setting-variable-name", CommandCompletions::eNoCompletion, { NULL, false }, "The name of a settable internal debugger variable.  Type 'settings list' to see a complete list of such variables." }, 
+    { eArgTypeShlibName, "shlib-name", CommandCompletions::eNoCompletion, { NULL, false }, "The name of a shared library." },
+    { eArgTypeSourceFile, "source-file", CommandCompletions::eSourceFileCompletion, { NULL, false }, "The name of a source file.." },
+    { eArgTypeSortOrder, "sort-order", CommandCompletions::eNoCompletion, { NULL, false }, "Specify a sort order when dumping lists." },
+    { eArgTypeStartAddress, "start-address", CommandCompletions::eNoCompletion, { NULL, false }, "Help text goes here." },
+    { eArgTypeSummaryString, "summary-string", CommandCompletions::eNoCompletion, { SummaryStringHelpTextCallback, true }, NULL },
+    { eArgTypeSymbol, "symbol", CommandCompletions::eSymbolCompletion, { NULL, false }, "Any symbol name (function name, variable, argument, etc.)" },
+    { eArgTypeThreadID, "thread-id", CommandCompletions::eNoCompletion, { NULL, false }, "Thread ID number." },
+    { eArgTypeThreadIndex, "thread-index", CommandCompletions::eNoCompletion, { NULL, false }, "Index into the process' list of threads." },
+    { eArgTypeThreadName, "thread-name", CommandCompletions::eNoCompletion, { NULL, false }, "The thread's name." },
+    { eArgTypeUnsignedInteger, "unsigned-integer", CommandCompletions::eNoCompletion, { NULL, false }, "An unsigned integer." },
+    { eArgTypeUnixSignal, "unix-signal", CommandCompletions::eNoCompletion, { NULL, false }, "A valid Unix signal name or number (e.g. SIGKILL, KILL or 9)." },
+    { eArgTypeVarName, "variable-name", CommandCompletions::eNoCompletion, { NULL, false }, "The name of a variable in your program." },
+    { eArgTypeValue, "value", CommandCompletions::eNoCompletion, { NULL, false }, "A value could be anything, depending on where and how it is used." },
+    { eArgTypeWidth, "width", CommandCompletions::eNoCompletion, { NULL, false }, "Help text goes here." },
+    { eArgTypeNone, "none", CommandCompletions::eNoCompletion, { NULL, false }, "No help available for this." },
+    { eArgTypePlatform, "platform-name", CommandCompletions::ePlatformPluginCompletion, { NULL, false }, "The name of an installed platform plug-in . Type 'platform list' to see a complete list of installed platforms." },
+    { eArgTypeWatchpointID, "watchpt-id", CommandCompletions::eNoCompletion, { NULL, false }, "Watchpoint IDs are positive integers." },
+    { eArgTypeWatchpointIDRange, "watchpt-id-list", CommandCompletions::eNoCompletion, { NULL, false }, "For example, '1-3' or '1 to 3'." },
+    { eArgTypeWatchType, "watch-type", CommandCompletions::eNoCompletion, { NULL, false }, "Specify the type for a watchpoint." }
+};
+
+const CommandObject::ArgumentTableEntry*
+CommandObject::GetArgumentTable ()
+{
+    // If this assertion fires, then the table above is out of date with the CommandArgumentType enumeration
+    assert ((sizeof (CommandObject::g_arguments_data) / sizeof (CommandObject::ArgumentTableEntry)) == eArgTypeLastArg);
+    return CommandObject::g_arguments_data;
+}
+
+