1 //===-- CommandObjectPlugin.cpp -------------------------------------------===//
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 #include "CommandObjectPlugin.h"
10 #include "lldb/Interpreter/CommandInterpreter.h"
11 #include "lldb/Interpreter/CommandReturnObject.h"
12 
13 using namespace lldb;
14 using namespace lldb_private;
15 
16 class CommandObjectPluginLoad : public CommandObjectParsed {
17 public:
18   CommandObjectPluginLoad(CommandInterpreter &interpreter)
19       : CommandObjectParsed(interpreter, "plugin load",
20                             "Import a dylib that implements an LLDB plugin.",
21                             nullptr) {
22     CommandArgumentEntry arg1;
23     CommandArgumentData cmd_arg;
24 
25     // Define the first (and only) variant of this arg.
26     cmd_arg.arg_type = eArgTypeFilename;
27     cmd_arg.arg_repetition = eArgRepeatPlain;
28 
29     // There is only one variant this argument could be; put it into the
30     // argument entry.
31     arg1.push_back(cmd_arg);
32 
33     // Push the data for the first argument into the m_arguments vector.
34     m_arguments.push_back(arg1);
35   }
36 
37   ~CommandObjectPluginLoad() override = default;
38 
39   void
40   HandleArgumentCompletion(CompletionRequest &request,
41                            OptionElementVector &opt_element_vector) override {
42     lldb_private::CommandCompletions::InvokeCommonCompletionCallbacks(
43         GetCommandInterpreter(), lldb::eDiskFileCompletion, request, nullptr);
44   }
45 
46 protected:
47   bool DoExecute(Args &command, CommandReturnObject &result) override {
48     size_t argc = command.GetArgumentCount();
49 
50     if (argc != 1) {
51       result.AppendError("'plugin load' requires one argument");
52       return false;
53     }
54 
55     Status error;
56 
57     FileSpec dylib_fspec(command[0].ref());
58     FileSystem::Instance().Resolve(dylib_fspec);
59 
60     if (GetDebugger().LoadPlugin(dylib_fspec, error))
61       result.SetStatus(eReturnStatusSuccessFinishResult);
62     else {
63       result.AppendError(error.AsCString());
64     }
65 
66     return result.Succeeded();
67   }
68 };
69 
70 CommandObjectPlugin::CommandObjectPlugin(CommandInterpreter &interpreter)
71     : CommandObjectMultiword(interpreter, "plugin",
72                              "Commands for managing LLDB plugins.",
73                              "plugin <subcommand> [<subcommand-options>]") {
74   LoadSubCommand("load",
75                  CommandObjectSP(new CommandObjectPluginLoad(interpreter)));
76 }
77 
78 CommandObjectPlugin::~CommandObjectPlugin() = default;
79