lldb/examples/plugins/commands/fooplugin.cpp

   1 //===-- fooplugin.cpp -------------------------------------------*- C++ -*-===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 /*
  10 An example plugin for LLDB that provides a new foo command with a child
  11 subcommand
  12 Compile this into a dylib foo.dylib and load by placing in appropriate locations
  13 on disk or
  14 by typing plugin load foo.dylib at the LLDB command line
  15 */
  16
  17 #include <LLDB/SBCommandInterpreter.h>
  18 #include <LLDB/SBCommandReturnObject.h>
  19 #include <LLDB/SBDebugger.h>
  20
  21 namespace lldb {
  22 bool PluginInitialize(lldb::SBDebugger debugger);
  23 }
  24
  25 class ChildCommand : public lldb::SBCommandPluginInterface {
  26 public:
  27   virtual bool DoExecute(lldb::SBDebugger debugger, char **command,
  28                          lldb::SBCommandReturnObject &result) {
  29     if (command) {
  30       const char *arg = *command;
  31       while (arg) {
  32         result.Printf("%s\n", arg);
  33         arg = *(++command);
  34       }
  35       return true;
  36     }
  37     return false;
  38   }
  39 };
  40
  41 bool lldb::PluginInitialize(lldb::SBDebugger debugger) {
  42   lldb::SBCommandInterpreter interpreter = debugger.GetCommandInterpreter();
  43   lldb::SBCommand foo = interpreter.AddMultiwordCommand("foo", NULL);
  44   foo.AddCommand("child", new ChildCommand(), "a child of foo");
  45   return true;
  46 }