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     CommandCompletions::InvokeCommonCompletionCallbacks(
43         GetCommandInterpreter(), CommandCompletions::eDiskFileCompletion,
44         request, nullptr);
45   }
46 
47 protected:
48   bool DoExecute(Args &command, CommandReturnObject &result) override {
49     size_t argc = command.GetArgumentCount();
50 
51     if (argc != 1) {
52       result.AppendError("'plugin load' requires one argument");
53       return false;
54     }
55 
56     Status error;
57 
58     FileSpec dylib_fspec(command[0].ref());
59     FileSystem::Instance().Resolve(dylib_fspec);
60 
61     if (GetDebugger().LoadPlugin(dylib_fspec, error))
62       result.SetStatus(eReturnStatusSuccessFinishResult);
63     else {
64       result.AppendError(error.AsCString());
65     }
66 
67     return result.Succeeded();
68   }
69 };
70 
71 CommandObjectPlugin::CommandObjectPlugin(CommandInterpreter &interpreter)
72     : CommandObjectMultiword(interpreter, "plugin",
73                              "Commands for managing LLDB plugins.",
74                              "plugin <subcommand> [<subcommand-options>]") {
75   LoadSubCommand("load",
76                  CommandObjectSP(new CommandObjectPluginLoad(interpreter)));
77 }
78 
79 CommandObjectPlugin::~CommandObjectPlugin() = default;
80