示例#1
0
  bool DoExecute(Args &args, CommandReturnObject &result) override {
    if (args.empty()) {
      result.AppendErrorWithFormat(
          "%s takes a log channel and one or more log types.\n",
          m_cmd_name.c_str());
      return false;
    }

    Log::Callbacks log_callbacks;

    const std::string channel = args.GetArgumentAtIndex(0);
    args.Shift(); // Shift off the channel
    if (Log::GetLogChannelCallbacks(ConstString(channel), log_callbacks)) {
      log_callbacks.disable(args.GetConstArgumentVector(),
                            &result.GetErrorStream());
      result.SetStatus(eReturnStatusSuccessFinishNoResult);
    } else if (channel == "all") {
      Log::DisableAllLogChannels(&result.GetErrorStream());
    } else {
      LogChannelSP log_channel_sp(LogChannel::FindPlugin(channel.data()));
      if (log_channel_sp) {
        log_channel_sp->Disable(args.GetConstArgumentVector(),
                                &result.GetErrorStream());
        result.SetStatus(eReturnStatusSuccessFinishNoResult);
      } else
        result.AppendErrorWithFormat("Invalid log channel '%s'.\n",
                                     channel.data());
    }
    return result.Succeeded();
  }
示例#2
0
 virtual bool
 DoExecute (Args& args,
          CommandReturnObject &result)
 {
     if (args.GetArgumentCount() < 2)
     {
         result.AppendErrorWithFormat("%s takes a log channel and one or more log types.\n", m_cmd_name.c_str());
     }
     else
     {
         std::string channel(args.GetArgumentAtIndex(0));
         args.Shift ();  // Shift off the channel
         char log_file[PATH_MAX];
         if (m_options.log_file)
             m_options.log_file.GetPath(log_file, sizeof(log_file));
         else
             log_file[0] = '\0';
         bool success = m_interpreter.GetDebugger().EnableLog (channel.c_str(), 
                                                               args.GetConstArgumentVector(), 
                                                               log_file, 
                                                               m_options.log_options, 
                                                               result.GetErrorStream());
         if (success)
             result.SetStatus (eReturnStatusSuccessFinishNoResult);
         else
             result.SetStatus (eReturnStatusFailed);
     }    
     return result.Succeeded();
 }
示例#3
0
bool
CommandObject::ParseOptions
(
    CommandInterpreter &interpreter,
    Args& args,
    CommandReturnObject &result
)
{
    // See if the subclass has options?
    Options *options = GetOptions();
    if (options != NULL)
    {
        Error error;
        options->ResetOptionValues();

        // ParseOptions calls getopt_long, 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.Fail() || !options->VerifyOptions (result))
        {
            const char *error_cstr = error.AsCString();
            if (error_cstr)
            {
                // We got an error string, lets use that
                result.GetErrorStream().PutCString(error_cstr);
            }
            else
            {
                // No error string, output the usage information into result
                options->GenerateOptionUsage (result.GetErrorStream(), this);
            }
            // Set the return status to failed (this was an error).
            result.SetStatus (eReturnStatusFailed);
            return false;
        }
    }
    return true;
}
示例#4
0
    virtual bool
    Execute (Args& args,
             CommandReturnObject &result)
    {
        const size_t argc = args.GetArgumentCount();
        if (argc == 0)
        {
            result.AppendErrorWithFormat("Usage: %s\n", m_cmd_syntax.c_str());
        }
        else
        {
            Log::Callbacks log_callbacks;

            std::string channel(args.GetArgumentAtIndex(0));
            args.Shift ();  // Shift off the channel
            if (Log::GetLogChannelCallbacks (channel.c_str(), log_callbacks))
            {
                log_callbacks.disable (args, &result.GetErrorStream());
                result.SetStatus(eReturnStatusSuccessFinishNoResult);
            }
            else if (channel == "all")
            {
                Log::DisableAllLogChannels(&result.GetErrorStream());
            }
            else
            {
                LogChannelSP log_channel_sp (LogChannel::FindPlugin(channel.c_str()));
                if (log_channel_sp)
                {
                    log_channel_sp->Disable(args, &result.GetErrorStream());
                    result.SetStatus(eReturnStatusSuccessFinishNoResult);
                }
                else
                    result.AppendErrorWithFormat("Invalid log channel '%s'.\n", args.GetArgumentAtIndex(0));
            }
        }
        return result.Succeeded();
    }
示例#5
0
    virtual bool
    Execute (CommandInterpreter &interpreter, 
             Args& args,
             CommandReturnObject &result)
    {
        const size_t argc = args.GetArgumentCount();
        if (argc == 0)
        {
            result.GetErrorStream() << m_cmd_syntax.c_str();
        }
        else
        {
            for (size_t i=0; i<argc; ++i)
            {
                Log::Callbacks log_callbacks;

                std::string channel(args.GetArgumentAtIndex(i));
                if (Log::GetLogChannelCallbacks (channel.c_str(), log_callbacks))
                {
                    log_callbacks.disable ();
                    result.SetStatus(eReturnStatusSuccessFinishNoResult);
                }
                else if (channel == "all")
                {
                    Log::DisableAllLogChannels();
                }
                else
                {
                    LogChannelSP log_channel_sp (GetLogChannelPluginForChannel(channel.c_str()));
                    if (log_channel_sp)
                    {
                        log_channel_sp->Disable();
                        result.SetStatus(eReturnStatusSuccessFinishNoResult);
                    }
                    else
                        result.AppendErrorWithFormat("Invalid log channel '%s'.\n", args.GetArgumentAtIndex(0));
                }
            }
        }
        return result.Succeeded();
    }
示例#6
0
  bool DoExecute(Args &command, CommandReturnObject &result) override {
    // No need to check "frame" for validity as eCommandRequiresFrame ensures it
    // is valid
    StackFrame *frame = m_exe_ctx.GetFramePtr();

    Stream &s = result.GetOutputStream();

    // Be careful about the stack frame, if any summary formatter runs code, it
    // might clear the StackFrameList
    // for the thread.  So hold onto a shared pointer to the frame so it stays
    // alive.

    VariableList *variable_list =
        frame->GetVariableList(m_option_variable.show_globals);

    VariableSP var_sp;
    ValueObjectSP valobj_sp;

    const char *name_cstr = nullptr;
    size_t idx;

    TypeSummaryImplSP summary_format_sp;
    if (!m_option_variable.summary.IsCurrentValueEmpty())
      DataVisualization::NamedSummaryFormats::GetSummaryFormat(
          ConstString(m_option_variable.summary.GetCurrentValue()),
          summary_format_sp);
    else if (!m_option_variable.summary_string.IsCurrentValueEmpty())
      summary_format_sp.reset(new StringSummaryFormat(
          TypeSummaryImpl::Flags(),
          m_option_variable.summary_string.GetCurrentValue()));

    DumpValueObjectOptions options(m_varobj_options.GetAsDumpOptions(
        eLanguageRuntimeDescriptionDisplayVerbosityFull, eFormatDefault,
        summary_format_sp));

    const SymbolContext &sym_ctx =
        frame->GetSymbolContext(eSymbolContextFunction);
    if (sym_ctx.function && sym_ctx.function->IsTopLevelFunction())
      m_option_variable.show_globals = true;

    if (variable_list) {
      const Format format = m_option_format.GetFormat();
      options.SetFormat(format);

      if (!command.empty()) {
        VariableList regex_var_list;

        // If we have any args to the variable command, we will make
        // variable objects from them...
        for (idx = 0; (name_cstr = command.GetArgumentAtIndex(idx)) != nullptr;
             ++idx) {
          if (m_option_variable.use_regex) {
            const size_t regex_start_index = regex_var_list.GetSize();
            llvm::StringRef name_str(name_cstr);
            RegularExpression regex(name_str);
            if (regex.Compile(name_str)) {
              size_t num_matches = 0;
              const size_t num_new_regex_vars =
                  variable_list->AppendVariablesIfUnique(regex, regex_var_list,
                                                         num_matches);
              if (num_new_regex_vars > 0) {
                for (size_t regex_idx = regex_start_index,
                            end_index = regex_var_list.GetSize();
                     regex_idx < end_index; ++regex_idx) {
                  var_sp = regex_var_list.GetVariableAtIndex(regex_idx);
                  if (var_sp) {
                    valobj_sp = frame->GetValueObjectForFrameVariable(
                        var_sp, m_varobj_options.use_dynamic);
                    if (valobj_sp) {
                      //                                            if (format
                      //                                            !=
                      //                                            eFormatDefault)
                      //                                                valobj_sp->SetFormat
                      //                                                (format);

                      std::string scope_string;
                      if (m_option_variable.show_scope)
                        scope_string = GetScopeString(var_sp).str();

                      if (!scope_string.empty())
                        s.PutCString(scope_string);

                      if (m_option_variable.show_decl &&
                          var_sp->GetDeclaration().GetFile()) {
                        bool show_fullpaths = false;
                        bool show_module = true;
                        if (var_sp->DumpDeclaration(&s, show_fullpaths,
                                                    show_module))
                          s.PutCString(": ");
                      }
                      valobj_sp->Dump(result.GetOutputStream(), options);
                    }
                  }
                }
              } else if (num_matches == 0) {
                result.GetErrorStream().Printf("error: no variables matched "
                                               "the regular expression '%s'.\n",
                                               name_cstr);
              }
            } else {
              char regex_error[1024];
              if (regex.GetErrorAsCString(regex_error, sizeof(regex_error)))
                result.GetErrorStream().Printf("error: %s\n", regex_error);
              else
                result.GetErrorStream().Printf(
                    "error: unknown regex error when compiling '%s'\n",
                    name_cstr);
            }
          } else // No regex, either exact variable names or variable
                 // expressions.
          {
            Error error;
            uint32_t expr_path_options =
                StackFrame::eExpressionPathOptionCheckPtrVsMember |
                StackFrame::eExpressionPathOptionsAllowDirectIVarAccess |
                StackFrame::eExpressionPathOptionsInspectAnonymousUnions;
            lldb::VariableSP var_sp;
            valobj_sp = frame->GetValueForVariableExpressionPath(
                name_cstr, m_varobj_options.use_dynamic, expr_path_options,
                var_sp, error);
            if (valobj_sp) {
              std::string scope_string;
              if (m_option_variable.show_scope)
                scope_string = GetScopeString(var_sp).str();

              if (!scope_string.empty())
                s.PutCString(scope_string);

              //                            if (format != eFormatDefault)
              //                                valobj_sp->SetFormat (format);
              if (m_option_variable.show_decl && var_sp &&
                  var_sp->GetDeclaration().GetFile()) {
                var_sp->GetDeclaration().DumpStopContext(&s, false);
                s.PutCString(": ");
              }

              options.SetFormat(format);
              options.SetVariableFormatDisplayLanguage(
                  valobj_sp->GetPreferredDisplayLanguage());

              Stream &output_stream = result.GetOutputStream();
              options.SetRootValueObjectName(valobj_sp->GetParent() ? name_cstr
                                                                    : nullptr);
              valobj_sp->Dump(output_stream, options);
            } else {
              const char *error_cstr = error.AsCString(nullptr);
              if (error_cstr)
                result.GetErrorStream().Printf("error: %s\n", error_cstr);
              else
                result.GetErrorStream().Printf("error: unable to find any "
                                               "variable expression path that "
                                               "matches '%s'.\n",
                                               name_cstr);
            }
          }
        }
      } else // No command arg specified.  Use variable_list, instead.
      {
        const size_t num_variables = variable_list->GetSize();
        if (num_variables > 0) {
          for (size_t i = 0; i < num_variables; i++) {
            var_sp = variable_list->GetVariableAtIndex(i);
            bool dump_variable = true;
            std::string scope_string;
            if (dump_variable && m_option_variable.show_scope)
              scope_string = GetScopeString(var_sp).str();

            if (dump_variable) {
              // Use the variable object code to make sure we are
              // using the same APIs as the public API will be
              // using...
              valobj_sp = frame->GetValueObjectForFrameVariable(
                  var_sp, m_varobj_options.use_dynamic);
              if (valobj_sp) {
                //                                if (format != eFormatDefault)
                //                                    valobj_sp->SetFormat
                //                                    (format);

                // When dumping all variables, don't print any variables
                // that are not in scope to avoid extra unneeded output
                if (valobj_sp->IsInScope()) {
                  if (!valobj_sp->GetTargetSP()
                           ->GetDisplayRuntimeSupportValues() &&
                      valobj_sp->IsRuntimeSupportValue())
                    continue;

                  if (!scope_string.empty())
                    s.PutCString(scope_string);

                  if (m_option_variable.show_decl &&
                      var_sp->GetDeclaration().GetFile()) {
                    var_sp->GetDeclaration().DumpStopContext(&s, false);
                    s.PutCString(": ");
                  }

                  options.SetFormat(format);
                  options.SetVariableFormatDisplayLanguage(
                      valobj_sp->GetPreferredDisplayLanguage());
                  options.SetRootValueObjectName(name_cstr);
                  valobj_sp->Dump(result.GetOutputStream(), options);
                }
              }
            }
          }
        }
      }
      result.SetStatus(eReturnStatusSuccessFinishResult);
    }

    if (m_interpreter.TruncationWarningNecessary()) {
      result.GetOutputStream().Printf(m_interpreter.TruncationWarningText(),
                                      m_cmd_name.c_str());
      m_interpreter.TruncationWarningGiven();
    }

    return result.Succeeded();
  }
示例#7
0
  bool DoExecute(Args &command, CommandReturnObject &result) override {
    // No need to check "thread" for validity as eCommandRequiresThread ensures
    // it is valid
    Thread *thread = m_exe_ctx.GetThreadPtr();

    uint32_t frame_idx = UINT32_MAX;
    if (m_options.relative_frame_offset != INT32_MIN) {
      // The one and only argument is a signed relative frame index
      frame_idx = thread->GetSelectedFrameIndex();
      if (frame_idx == UINT32_MAX)
        frame_idx = 0;

      if (m_options.relative_frame_offset < 0) {
        if (static_cast<int32_t>(frame_idx) >= -m_options.relative_frame_offset)
          frame_idx += m_options.relative_frame_offset;
        else {
          if (frame_idx == 0) {
            // If you are already at the bottom of the stack, then just warn and
            // don't reset the frame.
            result.AppendError("Already at the bottom of the stack.");
            result.SetStatus(eReturnStatusFailed);
            return false;
          } else
            frame_idx = 0;
        }
      } else if (m_options.relative_frame_offset > 0) {
        // I don't want "up 20" where "20" takes you past the top of the stack
        // to produce
        // an error, but rather to just go to the top.  So I have to count the
        // stack here...
        const uint32_t num_frames = thread->GetStackFrameCount();
        if (static_cast<int32_t>(num_frames - frame_idx) >
            m_options.relative_frame_offset)
          frame_idx += m_options.relative_frame_offset;
        else {
          if (frame_idx == num_frames - 1) {
            // If we are already at the top of the stack, just warn and don't
            // reset the frame.
            result.AppendError("Already at the top of the stack.");
            result.SetStatus(eReturnStatusFailed);
            return false;
          } else
            frame_idx = num_frames - 1;
        }
      }
    } else {
      if (command.GetArgumentCount() == 1) {
        const char *frame_idx_cstr = command.GetArgumentAtIndex(0);
        bool success = false;
        frame_idx =
            StringConvert::ToUInt32(frame_idx_cstr, UINT32_MAX, 0, &success);
        if (!success) {
          result.AppendErrorWithFormat("invalid frame index argument '%s'.",
                                       frame_idx_cstr);
          result.SetStatus(eReturnStatusFailed);
          return false;
        }
      } else if (command.GetArgumentCount() == 0) {
        frame_idx = thread->GetSelectedFrameIndex();
        if (frame_idx == UINT32_MAX) {
          frame_idx = 0;
        }
      } else {
        result.AppendErrorWithFormat(
            "too many arguments; expected frame-index, saw '%s'.\n",
            command.GetArgumentAtIndex(0));
        m_options.GenerateOptionUsage(
            result.GetErrorStream(), this,
            GetCommandInterpreter().GetDebugger().GetTerminalWidth());
        return false;
      }
    }

    bool success = thread->SetSelectedFrameByIndexNoisily(
        frame_idx, result.GetOutputStream());
    if (success) {
      m_exe_ctx.SetFrameSP(thread->GetSelectedFrame());
      result.SetStatus(eReturnStatusSuccessFinishResult);
    } else {
      result.AppendErrorWithFormat("Frame index (%u) out of range.\n",
                                   frame_idx);
      result.SetStatus(eReturnStatusFailed);
    }

    return result.Succeeded();
  }
bool
CommandObjectDisassemble::DoExecute (Args& command, CommandReturnObject &result)
{
    Target *target = m_interpreter.GetDebugger().GetSelectedTarget().get();
    if (target == NULL)
    {
        result.AppendError ("invalid target, create a debug target using the 'target create' command");
        result.SetStatus (eReturnStatusFailed);
        return false;
    }
    if (!m_options.arch.IsValid())
        m_options.arch = target->GetArchitecture();

    if (!m_options.arch.IsValid())
    {
        result.AppendError ("use the --arch option or set the target architecure to disassemble");
        result.SetStatus (eReturnStatusFailed);
        return false;
    }

    const char *plugin_name = m_options.GetPluginName ();
    const char *flavor_string = m_options.GetFlavorString();

    DisassemblerSP disassembler = Disassembler::FindPlugin(m_options.arch, flavor_string, plugin_name);

    if (!disassembler)
    {
        if (plugin_name)
        {
            result.AppendErrorWithFormat ("Unable to find Disassembler plug-in named '%s' that supports the '%s' architecture.\n",
                                          plugin_name,
                                          m_options.arch.GetArchitectureName());
        }
        else
            result.AppendErrorWithFormat ("Unable to find Disassembler plug-in for the '%s' architecture.\n", 
                                          m_options.arch.GetArchitectureName());
        result.SetStatus (eReturnStatusFailed);
        return false;
    }
    else if (flavor_string != NULL && !disassembler->FlavorValidForArchSpec(m_options.arch, flavor_string))
        result.AppendWarningWithFormat("invalid disassembler flavor \"%s\", using default.\n", flavor_string);

    result.SetStatus (eReturnStatusSuccessFinishResult);

    if (command.GetArgumentCount() != 0)
    {
        result.AppendErrorWithFormat ("\"disassemble\" arguments are specified as options.\n");
        GetOptions()->GenerateOptionUsage (result.GetErrorStream(), this);
        result.SetStatus (eReturnStatusFailed);
        return false;
    }
    
    if (m_options.show_mixed && m_options.num_lines_context == 0)
        m_options.num_lines_context = 1;

    // Always show the PC in the disassembly
    uint32_t options = Disassembler::eOptionMarkPCAddress;

    // Mark the source line for the current PC only if we are doing mixed source and assembly
    if (m_options.show_mixed)
        options |= Disassembler::eOptionMarkPCSourceLine;

    if (m_options.show_bytes)
        options |= Disassembler::eOptionShowBytes;

    if (m_options.raw)
        options |= Disassembler::eOptionRawOuput;

    if (!m_options.func_name.empty())
    {
        ConstString name(m_options.func_name.c_str());
        
        if (Disassembler::Disassemble (m_interpreter.GetDebugger(), 
                                       m_options.arch,
                                       plugin_name,
                                       flavor_string,
                                       m_exe_ctx,
                                       name,
                                       NULL,    // Module *
                                       m_options.num_instructions,
                                       m_options.show_mixed ? m_options.num_lines_context : 0,
                                       options,
                                       result.GetOutputStream()))
        {
            result.SetStatus (eReturnStatusSuccessFinishResult);
        }
        else
        {
            result.AppendErrorWithFormat ("Unable to find symbol with name '%s'.\n", name.GetCString());
            result.SetStatus (eReturnStatusFailed);
        }
    } 
    else
    {
        std::vector<AddressRange> ranges;
        AddressRange range;
        StackFrame *frame = m_exe_ctx.GetFramePtr();
        if (m_options.frame_line)
        {
            if (frame == NULL)
            {
                result.AppendError ("Cannot disassemble around the current line without a selected frame.\n");
                result.SetStatus (eReturnStatusFailed);
                return false;
            }
            LineEntry pc_line_entry (frame->GetSymbolContext(eSymbolContextLineEntry).line_entry);
            if (pc_line_entry.IsValid())
            {
                range = pc_line_entry.range;
            }
            else
            {
                m_options.at_pc = true; // No line entry, so just disassemble around the current pc
                m_options.show_mixed = false;
            }
        }
        else if (m_options.current_function)
        {
            if (frame == NULL)
            {
                result.AppendError ("Cannot disassemble around the current function without a selected frame.\n");
                result.SetStatus (eReturnStatusFailed);
                return false;
            }
            Symbol *symbol = frame->GetSymbolContext(eSymbolContextSymbol).symbol;
            if (symbol)
            {
                range.GetBaseAddress() = symbol->GetAddress();
                range.SetByteSize(symbol->GetByteSize());
            }
        }

        // Did the "m_options.frame_line" find a valid range already? If so
        // skip the rest...
        if (range.GetByteSize() == 0)
        {
            if (m_options.at_pc)
            {
                if (frame == NULL)
                {
                    result.AppendError ("Cannot disassemble around the current PC without a selected frame.\n");
                    result.SetStatus (eReturnStatusFailed);
                    return false;
                }
                range.GetBaseAddress() = frame->GetFrameCodeAddress();
                if (m_options.num_instructions == 0)
                {
                    // Disassembling at the PC always disassembles some number of instructions (not the whole function).
                    m_options.num_instructions = DEFAULT_DISASM_NUM_INS;
                }
                ranges.push_back(range);
            }
            else
            {
                range.GetBaseAddress().SetOffset (m_options.start_addr);
                if (range.GetBaseAddress().IsValid())
                {
                    if (m_options.end_addr != LLDB_INVALID_ADDRESS)
                    {
                        if (m_options.end_addr <= m_options.start_addr)
                        {
                            result.AppendErrorWithFormat ("End address before start address.\n");
                            result.SetStatus (eReturnStatusFailed);
                            return false;            
                        }
                        range.SetByteSize (m_options.end_addr - m_options.start_addr);
                    }
                    ranges.push_back(range);
                }
                else
                {
                    if (m_options.symbol_containing_addr != LLDB_INVALID_ADDRESS 
                        && target)
                    {
                        if (!target->GetSectionLoadList().IsEmpty())
                        {
                            bool failed = false;
                            Address symbol_containing_address;
                            if (target->GetSectionLoadList().ResolveLoadAddress (m_options.symbol_containing_addr, symbol_containing_address))
                            {
                                ModuleSP module_sp (symbol_containing_address.GetModule());
                                SymbolContext sc;
                                bool resolve_tail_call_address = true; // PC can be one past the address range of the function.
                                module_sp->ResolveSymbolContextForAddress (symbol_containing_address, eSymbolContextEverything, sc,
                                                                           resolve_tail_call_address);
                                if (sc.function || sc.symbol)
                                {
                                    sc.GetAddressRange (eSymbolContextFunction | eSymbolContextSymbol, 0, false, range);
                                }
                                else
                                {
                                    failed = true;
                                }
                            }
                            else
                            {
                                failed = true;
                            }
                            if (failed)
                            {
                                result.AppendErrorWithFormat ("Could not find function bounds for address 0x%" PRIx64 "\n", m_options.symbol_containing_addr);
                                result.SetStatus (eReturnStatusFailed);
                                return false;
                            }
                            ranges.push_back(range);
                        }
                        else
                        {
                            for (lldb::ModuleSP module_sp : target->GetImages().Modules())
                            {
                                lldb::addr_t file_addr = m_options.symbol_containing_addr;
                                Address file_address;
                                if (module_sp->ResolveFileAddress(file_addr, file_address))
                                {
                                    SymbolContext sc;
                                    bool resolve_tail_call_address = true; // PC can be one past the address range of the function.
                                    module_sp->ResolveSymbolContextForAddress (file_address, eSymbolContextEverything, sc, resolve_tail_call_address);
                                    if (sc.function || sc.symbol)
                                    {
                                        sc.GetAddressRange (eSymbolContextFunction | eSymbolContextSymbol, 0, false, range);
                                        ranges.push_back(range);
                                    }
                                }
                            }
                            
                        }
                    }
                }
            }
        }
        else
            ranges.push_back(range);

        if (m_options.num_instructions != 0)
        {
            if (ranges.size() == 0)
            {
                // The default action is to disassemble the current frame function.
                if (frame)
                {
                    SymbolContext sc(frame->GetSymbolContext(eSymbolContextFunction | eSymbolContextSymbol));
                    if (sc.function)
                        range.GetBaseAddress() = sc.function->GetAddressRange().GetBaseAddress();
                    else if (sc.symbol && sc.symbol->ValueIsAddress())
                        range.GetBaseAddress() = sc.symbol->GetAddress();
                    else
                        range.GetBaseAddress() = frame->GetFrameCodeAddress();
                }
                
                if (!range.GetBaseAddress().IsValid())
                {
                    result.AppendError ("invalid frame");
                    result.SetStatus (eReturnStatusFailed);
                    return false;
                }
            }
            
            bool print_sc_header = ranges.size() > 1;
            for (AddressRange cur_range : ranges)
            {
                if (Disassembler::Disassemble (m_interpreter.GetDebugger(),
                                               m_options.arch,
                                               plugin_name,
                                               flavor_string,
                                               m_exe_ctx,
                                               cur_range.GetBaseAddress(),
                                               m_options.num_instructions,
                                               m_options.show_mixed ? m_options.num_lines_context : 0,
                                               options,
                                               result.GetOutputStream()))
                {
                    result.SetStatus (eReturnStatusSuccessFinishResult);
                }
                else
                {
                    if (m_options.start_addr != LLDB_INVALID_ADDRESS)
                        result.AppendErrorWithFormat ("Failed to disassemble memory at 0x%8.8" PRIx64 ".\n", m_options.start_addr);
                    else if (m_options.symbol_containing_addr != LLDB_INVALID_ADDRESS)
                        result.AppendErrorWithFormat ("Failed to disassemble memory in function at 0x%8.8" PRIx64 ".\n", m_options.symbol_containing_addr);
                    result.SetStatus (eReturnStatusFailed);
                }
            }
            if (print_sc_header)
                result.AppendMessage("\n");
        }
        else
        {
            if (ranges.size() == 0)
            {
                // The default action is to disassemble the current frame function.
                if (frame)
                {
                    SymbolContext sc(frame->GetSymbolContext(eSymbolContextFunction | eSymbolContextSymbol));
                    if (sc.function)
                        range = sc.function->GetAddressRange();
                    else if (sc.symbol && sc.symbol->ValueIsAddress())
                    {
                        range.GetBaseAddress() = sc.symbol->GetAddress();
                        range.SetByteSize (sc.symbol->GetByteSize());
                    }
                    else
                        range.GetBaseAddress() = frame->GetFrameCodeAddress();
                }
                else
                {
                    result.AppendError ("invalid frame");
                    result.SetStatus (eReturnStatusFailed);
                    return false;
                }
                ranges.push_back(range);
            }
            
            bool print_sc_header = ranges.size() > 1;
            for (AddressRange cur_range : ranges)
            {
                if (cur_range.GetByteSize() == 0)
                    cur_range.SetByteSize(DEFAULT_DISASM_BYTE_SIZE);

                if (Disassembler::Disassemble (m_interpreter.GetDebugger(),
                                               m_options.arch,
                                               plugin_name,
                                               flavor_string,
                                               m_exe_ctx,
                                               cur_range,
                                               m_options.num_instructions,
                                               m_options.show_mixed ? m_options.num_lines_context : 0,
                                               options,
                                               result.GetOutputStream()))
                {
                    result.SetStatus (eReturnStatusSuccessFinishResult);
                }
                else
                {
                    result.AppendErrorWithFormat ("Failed to disassemble memory at 0x%8.8" PRIx64 ".\n", m_options.start_addr);
                    result.SetStatus (eReturnStatusFailed);            
                }
                if (print_sc_header)
                    result.AppendMessage("\n");
            }
        }
    }

    return result.Succeeded();
}
示例#9
0
    virtual bool
    DoExecute (Args& command, CommandReturnObject &result)
    {
        ExecutionContext exe_ctx(m_interpreter.GetExecutionContext());
        StackFrame *frame = exe_ctx.GetFramePtr();
        if (frame == NULL)
        {
            result.AppendError ("you must be stopped in a valid stack frame to view frame variables.");
            result.SetStatus (eReturnStatusFailed);
            return false;
        }

        Stream &s = result.GetOutputStream();

        bool get_file_globals = true;
        
        // Be careful about the stack frame, if any summary formatter runs code, it might clear the StackFrameList
        // for the thread.  So hold onto a shared pointer to the frame so it stays alive.
        
        VariableList *variable_list = frame->GetVariableList (get_file_globals);

        VariableSP var_sp;
        ValueObjectSP valobj_sp;

        const char *name_cstr = NULL;
        size_t idx;
        
        TypeSummaryImplSP summary_format_sp;
        if (!m_option_variable.summary.IsCurrentValueEmpty())
            DataVisualization::NamedSummaryFormats::GetSummaryFormat(ConstString(m_option_variable.summary.GetCurrentValue()), summary_format_sp);
        else if (!m_option_variable.summary_string.IsCurrentValueEmpty())
            summary_format_sp.reset(new StringSummaryFormat(TypeSummaryImpl::Flags(),m_option_variable.summary_string.GetCurrentValue()));
        
        ValueObject::DumpValueObjectOptions options;
        
        options.SetMaximumPointerDepth(m_varobj_options.ptr_depth)
            .SetMaximumDepth(m_varobj_options.max_depth)
            .SetShowTypes(m_varobj_options.show_types)
            .SetShowLocation(m_varobj_options.show_location)
            .SetUseObjectiveC(m_varobj_options.use_objc)
            .SetUseDynamicType(m_varobj_options.use_dynamic)
            .SetUseSyntheticValue(m_varobj_options.use_synth)
            .SetFlatOutput(m_varobj_options.flat_output)
            .SetOmitSummaryDepth(m_varobj_options.no_summary_depth)
            .SetIgnoreCap(m_varobj_options.ignore_cap)
            .SetSummary(summary_format_sp);

        if (m_varobj_options.be_raw)
            options.SetRawDisplay(true);
        
        if (variable_list)
        {
            const Format format = m_option_format.GetFormat();
            options.SetFormat(format);

            if (command.GetArgumentCount() > 0)
            {
                VariableList regex_var_list;

                // If we have any args to the variable command, we will make
                // variable objects from them...
                for (idx = 0; (name_cstr = command.GetArgumentAtIndex(idx)) != NULL; ++idx)
                {
                    if (m_option_variable.use_regex)
                    {
                        const uint32_t regex_start_index = regex_var_list.GetSize();
                        RegularExpression regex (name_cstr);
                        if (regex.Compile(name_cstr))
                        {
                            size_t num_matches = 0;
                            const size_t num_new_regex_vars = variable_list->AppendVariablesIfUnique(regex, 
                                                                                                     regex_var_list, 
                                                                                                     num_matches);
                            if (num_new_regex_vars > 0)
                            {
                                for (uint32_t regex_idx = regex_start_index, end_index = regex_var_list.GetSize(); 
                                     regex_idx < end_index;
                                     ++regex_idx)
                                {
                                    var_sp = regex_var_list.GetVariableAtIndex (regex_idx);
                                    if (var_sp)
                                    {
                                        valobj_sp = frame->GetValueObjectForFrameVariable (var_sp, m_varobj_options.use_dynamic);
                                        if (valobj_sp)
                                        {
//                                            if (format != eFormatDefault)
//                                                valobj_sp->SetFormat (format);
                                            
                                            if (m_option_variable.show_decl && var_sp->GetDeclaration ().GetFile())
                                            {
                                                bool show_fullpaths = false;
                                                bool show_module = true;
                                                if (var_sp->DumpDeclaration(&s, show_fullpaths, show_module))
                                                    s.PutCString (": ");
                                            }
                                            ValueObject::DumpValueObject (result.GetOutputStream(), 
                                                                          valobj_sp.get(),
                                                                          options);
                                        }
                                    }
                                }
                            }
                            else if (num_matches == 0)
                            {
                                result.GetErrorStream().Printf ("error: no variables matched the regular expression '%s'.\n", name_cstr);
                            }
                        }
                        else
                        {
                            char regex_error[1024];
                            if (regex.GetErrorAsCString(regex_error, sizeof(regex_error)))
                                result.GetErrorStream().Printf ("error: %s\n", regex_error);
                            else
                                result.GetErrorStream().Printf ("error: unkown regex error when compiling '%s'\n", name_cstr);
                        }
                    }
                    else // No regex, either exact variable names or variable expressions.
                    {
                        Error error;
                        uint32_t expr_path_options = StackFrame::eExpressionPathOptionCheckPtrVsMember |
                                                     StackFrame::eExpressionPathOptionsAllowDirectIVarAccess;
                        lldb::VariableSP var_sp;
                        valobj_sp = frame->GetValueForVariableExpressionPath (name_cstr, 
                                                                              m_varobj_options.use_dynamic, 
                                                                              expr_path_options,
                                                                              var_sp,
                                                                              error);
                        if (valobj_sp)
                        {
//                            if (format != eFormatDefault)
//                                valobj_sp->SetFormat (format);
                            if (m_option_variable.show_decl && var_sp && var_sp->GetDeclaration ().GetFile())
                            {
                                var_sp->GetDeclaration ().DumpStopContext (&s, false);
                                s.PutCString (": ");
                            }
                            
                            options.SetFormat(format);

                            Stream &output_stream = result.GetOutputStream();
                            options.SetRootValueObjectName(valobj_sp->GetParent() ? name_cstr : NULL);
                            ValueObject::DumpValueObject (output_stream, 
                                                          valobj_sp.get(), 
                                                          options);
                        }
                        else
                        {
                            const char *error_cstr = error.AsCString(NULL);
                            if (error_cstr)
                                result.GetErrorStream().Printf("error: %s\n", error_cstr);
                            else
                                result.GetErrorStream().Printf ("error: unable to find any variable expression path that matches '%s'\n", name_cstr);
                        }
                    }
                }
            }
            else // No command arg specified.  Use variable_list, instead.
            {
                const uint32_t num_variables = variable_list->GetSize();
                if (num_variables > 0)
                {
                    for (uint32_t i=0; i<num_variables; i++)
                    {
                        var_sp = variable_list->GetVariableAtIndex(i);
                        bool dump_variable = true;
                        switch (var_sp->GetScope())
                        {
                            case eValueTypeVariableGlobal:
                                dump_variable = m_option_variable.show_globals;
                                if (dump_variable && m_option_variable.show_scope)
                                    s.PutCString("GLOBAL: ");
                                break;

                            case eValueTypeVariableStatic:
                                dump_variable = m_option_variable.show_globals;
                                if (dump_variable && m_option_variable.show_scope)
                                    s.PutCString("STATIC: ");
                                break;

                            case eValueTypeVariableArgument:
                                dump_variable = m_option_variable.show_args;
                                if (dump_variable && m_option_variable.show_scope)
                                    s.PutCString("   ARG: ");
                                break;

                            case eValueTypeVariableLocal:
                                dump_variable = m_option_variable.show_locals;
                                if (dump_variable && m_option_variable.show_scope)
                                    s.PutCString(" LOCAL: ");
                                break;

                            default:
                                break;
                        }

                        if (dump_variable)
                        {
                            // Use the variable object code to make sure we are
                            // using the same APIs as the the public API will be
                            // using...
                            valobj_sp = frame->GetValueObjectForFrameVariable (var_sp, 
                                                                               m_varobj_options.use_dynamic);
                            if (valobj_sp)
                            {
//                                if (format != eFormatDefault)
//                                    valobj_sp->SetFormat (format);

                                // When dumping all variables, don't print any variables
                                // that are not in scope to avoid extra unneeded output
                                if (valobj_sp->IsInScope ())
                                {
                                    if (m_option_variable.show_decl && var_sp->GetDeclaration ().GetFile())
                                    {
                                        var_sp->GetDeclaration ().DumpStopContext (&s, false);
                                        s.PutCString (": ");
                                    }
                                    
                                    options.SetFormat(format);
                                    options.SetRootValueObjectName(name_cstr);
                                    ValueObject::DumpValueObject (result.GetOutputStream(), 
                                                                  valobj_sp.get(), 
                                                                  options);
                                }
                            }
                        }
                    }
                }
            }
            result.SetStatus (eReturnStatusSuccessFinishResult);
        }
        
        if (m_interpreter.TruncationWarningNecessary())
        {
            result.GetOutputStream().Printf(m_interpreter.TruncationWarningText(),
                                            m_cmd_name.c_str());
            m_interpreter.TruncationWarningGiven();
        }
        
        return result.Succeeded();
    }
示例#10
0
    bool
    DoExecute (Args& command,
             CommandReturnObject &result)
    {
        ExecutionContext exe_ctx (m_interpreter.GetExecutionContext());
        Thread *thread = exe_ctx.GetThreadPtr();
        if (thread)
        {
            uint32_t frame_idx = UINT32_MAX;
            if (m_options.relative_frame_offset != INT32_MIN)
            {
                // The one and only argument is a signed relative frame index
                frame_idx = thread->GetSelectedFrameIndex ();
                if (frame_idx == UINT32_MAX)
                    frame_idx = 0;
                
                if (m_options.relative_frame_offset < 0)
                {
                    if (frame_idx >= -m_options.relative_frame_offset)
                        frame_idx += m_options.relative_frame_offset;
                    else
                    {
                        if (frame_idx == 0)
                        {
                            //If you are already at the bottom of the stack, then just warn and don't reset the frame.
                            result.AppendError("Already at the bottom of the stack");
                            result.SetStatus(eReturnStatusFailed);
                            return false;
                        }
                        else
                            frame_idx = 0;
                    }
                }
                else if (m_options.relative_frame_offset > 0)
                {
                    // I don't want "up 20" where "20" takes you past the top of the stack to produce
                    // an error, but rather to just go to the top.  So I have to count the stack here...
                    const uint32_t num_frames = thread->GetStackFrameCount();
                    if (num_frames - frame_idx > m_options.relative_frame_offset)
                        frame_idx += m_options.relative_frame_offset;
                    else
                    {
                        if (frame_idx == num_frames - 1)
                        {
                            //If we are already at the top of the stack, just warn and don't reset the frame.
                            result.AppendError("Already at the top of the stack");
                            result.SetStatus(eReturnStatusFailed);
                            return false;
                        }
                        else
                            frame_idx = num_frames - 1;
                    }
                }
            }
            else 
            {
                if (command.GetArgumentCount() == 1)
                {
                    const char *frame_idx_cstr = command.GetArgumentAtIndex(0);
                    frame_idx = Args::StringToUInt32 (frame_idx_cstr, UINT32_MAX, 0);
                }
                else if (command.GetArgumentCount() == 0)
                {
                    frame_idx = thread->GetSelectedFrameIndex ();
                    if (frame_idx == UINT32_MAX)
                    {
                        frame_idx = 0;
                    }
                }
                else
                {
                    result.AppendError ("invalid arguments.\n");
                    m_options.GenerateOptionUsage (result.GetErrorStream(), this);
                }
            }

            const bool broadcast = true;
            bool success = thread->SetSelectedFrameByIndex (frame_idx, broadcast);
            if (success)
            {
                exe_ctx.SetFrameSP(thread->GetSelectedFrame ());
                StackFrame *frame = exe_ctx.GetFramePtr();
                if (frame)
                {
                    bool already_shown = false;
                    SymbolContext frame_sc(frame->GetSymbolContext(eSymbolContextLineEntry));
                    if (m_interpreter.GetDebugger().GetUseExternalEditor() && frame_sc.line_entry.file && frame_sc.line_entry.line != 0)
                    {
                        already_shown = Host::OpenFileInExternalEditor (frame_sc.line_entry.file, frame_sc.line_entry.line);
                    }

                    bool show_frame_info = true;
                    bool show_source = !already_shown;
                    if (frame->GetStatus (result.GetOutputStream(), show_frame_info, show_source))
                    {
                        result.SetStatus (eReturnStatusSuccessFinishResult);
                        return result.Succeeded();
                    }
                }
            }
            result.AppendErrorWithFormat ("Frame index (%u) out of range.\n", frame_idx);
        }
        else
        {
            result.AppendError ("no current thread");
        }
        result.SetStatus (eReturnStatusFailed);
        return false;
    }
示例#11
0
//    int
//    HandleArgumentCompletion (Args &input,
//                              int &cursor_index,
//                              int &cursor_char_position,
//                              OptionElementVector &opt_element_vector,
//                              int match_start_point,
//                              int max_return_elements,
//                              bool &word_complete,
//                              StringList &matches)
//    {
//        std::string completion_str (input.GetArgumentAtIndex(cursor_index));
//        completion_str.erase (cursor_char_position);
//        
//        if (cursor_index == 1)
//        {
//            //
//            Log::AutoCompleteChannelName (completion_str.c_str(), matches);
//        }
//        return matches.GetSize();
//    }
//
    virtual bool
    Execute (Args& args,
             CommandReturnObject &result)
    {
        if (args.GetArgumentCount() < 1)
        {
            result.AppendErrorWithFormat("Usage: %s\n", m_cmd_syntax.c_str());
        }
        else
        {
            Log::Callbacks log_callbacks;

            std::string channel(args.GetArgumentAtIndex(0));
            args.Shift ();  // Shift off the channel
            StreamSP log_stream_sp;
            if (m_options.log_file.empty())
            {
                log_stream_sp.reset(new StreamFile(m_interpreter.GetDebugger().GetOutputFile().GetDescriptor(), false));
            }
            else
            {
                LogStreamMap::iterator pos = m_log_streams.find(m_options.log_file);
                if (pos == m_log_streams.end())
                {
                    log_stream_sp.reset (new StreamFile (m_options.log_file.c_str()));
                    m_log_streams[m_options.log_file] = log_stream_sp;
                }
                else
                    log_stream_sp = pos->second;
            }
            assert (log_stream_sp.get());
            
            uint32_t log_options = m_options.log_options;
            if (log_options == 0)
                log_options = LLDB_LOG_OPTION_PREPEND_THREAD_NAME | LLDB_LOG_OPTION_THREADSAFE;
            if (Log::GetLogChannelCallbacks (channel.c_str(), log_callbacks))
            {
                log_callbacks.enable (log_stream_sp, log_options, args, &result.GetErrorStream());
                result.SetStatus(eReturnStatusSuccessFinishNoResult);
            }
            else
            {
                LogChannelSP log_channel_sp (LogChannel::FindPlugin (channel.c_str()));
                if (log_channel_sp)
                {
                    if (log_channel_sp->Enable (log_stream_sp, log_options, &result.GetErrorStream(), args))
                    {
                        result.SetStatus (eReturnStatusSuccessFinishNoResult);
                    }
                    else
                    {
                        result.AppendErrorWithFormat("Invalid log channel '%s'.\n", channel.c_str());
                        result.SetStatus (eReturnStatusFailed);
                    }
                }
                else
                {
                    result.AppendErrorWithFormat("Invalid log channel '%s'.\n", channel.c_str());
                    result.SetStatus (eReturnStatusFailed);
                }
            }
        }
        return result.Succeeded();
    }