https://github.com/medismailben updated 
https://github.com/llvm/llvm-project/pull/97273

>From bfffecd229e695e2f5b63e704e917a3585826b55 Mon Sep 17 00:00:00 2001
From: Med Ismail Bennani <ism...@bennani.ma>
Date: Tue, 2 Jul 2024 21:57:48 -0700
Subject: [PATCH] [lldb/Commands] Add `scripting template list` command with
 auto discovery

This patch introduces a new `template` multiword sub-command to the
`scripting` top-level command. As the name suggests, this sub-command
operates on scripting templates, and currently has the ability to
automatically discover the various scripting extensions that lldb
supports.

Signed-off-by: Med Ismail Bennani <ism...@bennani.ma>
---
 lldb/include/lldb/Core/PluginManager.h        |  27 +++
 .../Interfaces/ScriptedInterface.h            |   7 +
 lldb/include/lldb/lldb-private-interfaces.h   |   4 +
 .../Commands/CommandObjectScripting.cpp       | 157 ++++++++++++++++++
 lldb/source/Commands/Options.td               |   6 +
 lldb/source/Core/PluginManager.cpp            |  87 ++++++++++
 lldb/source/Plugins/CMakeLists.txt            |   3 +
 .../Python/Interfaces/CMakeLists.txt          |   6 +
 .../OperatingSystemPythonInterface.cpp        |  17 ++
 .../OperatingSystemPythonInterface.h          |  13 +-
 .../ScriptedProcessPythonInterface.cpp        |  23 +++
 .../ScriptedProcessPythonInterface.h          |  13 +-
 .../ScriptedThreadPlanPythonInterface.cpp     |  18 ++
 .../ScriptedThreadPlanPythonInterface.h       |  13 +-
 14 files changed, 391 insertions(+), 3 deletions(-)

diff --git a/lldb/include/lldb/Core/PluginManager.h 
b/lldb/include/lldb/Core/PluginManager.h
index f2296e2920238..d7d89347c1561 100644
--- a/lldb/include/lldb/Core/PluginManager.h
+++ b/lldb/include/lldb/Core/PluginManager.h
@@ -487,6 +487,33 @@ class PluginManager {
 
   static LanguageSet GetAllTypeSystemSupportedLanguagesForExpressions();
 
+  // Scripted Interface
+  static bool
+  RegisterPlugin(llvm::StringRef name, llvm::StringRef description,
+                 ScriptedInterfaceCreateInstance create_callback,
+                 lldb::ScriptLanguage language,
+                 std::vector<llvm::StringRef> command_interpreter_usages,
+                 std::vector<llvm::StringRef> api_usages);
+
+  static bool UnregisterPlugin(ScriptedInterfaceCreateInstance 
create_callback);
+
+  static ScriptedInterfaceCreateInstance
+  GetScriptedInterfaceCreateCallbackAtIndex(uint32_t idx);
+
+  static uint32_t GetNumScriptedInterfaces();
+
+  static llvm::StringRef GetScriptedInterfaceNameAtIndex(uint32_t idx);
+
+  static llvm::StringRef GetScriptedInterfaceDescriptionAtIndex(uint32_t idx);
+
+  static lldb::ScriptLanguage GetScriptedInterfaceLanguageAtIndex(uint32_t 
idx);
+
+  static std::vector<llvm::StringRef>
+  GetScriptedInterfaceCommandInterpreterUsagesAtIndex(uint32_t idx);
+
+  static std::vector<llvm::StringRef>
+  GetScriptedInterfaceAPIUsagesAtIndex(uint32_t idx);
+
   // REPL
   static bool RegisterPlugin(llvm::StringRef name, llvm::StringRef description,
                              REPLCreateInstance create_callback,
diff --git a/lldb/include/lldb/Interpreter/Interfaces/ScriptedInterface.h 
b/lldb/include/lldb/Interpreter/Interfaces/ScriptedInterface.h
index 69504dbcda5dc..23658b90bb90a 100644
--- a/lldb/include/lldb/Interpreter/Interfaces/ScriptedInterface.h
+++ b/lldb/include/lldb/Interpreter/Interfaces/ScriptedInterface.h
@@ -68,6 +68,13 @@ class ScriptedInterface {
     return true;
   }
 
+  static bool
+  CreateInstance(lldb::ScriptLanguage language,
+                 std::vector<llvm::StringRef> command_interpreter_usages,
+                 std::vector<llvm::StringRef> api_usages) {
+    return false;
+  }
+
 protected:
   StructuredData::GenericSP m_object_instance_sp;
 };
diff --git a/lldb/include/lldb/lldb-private-interfaces.h 
b/lldb/include/lldb/lldb-private-interfaces.h
index cdd9b51d9329c..2404e28158690 100644
--- a/lldb/include/lldb/lldb-private-interfaces.h
+++ b/lldb/include/lldb/lldb-private-interfaces.h
@@ -124,6 +124,10 @@ typedef lldb::REPLSP (*REPLCreateInstance)(Status &error,
                                            lldb::LanguageType language,
                                            Debugger *debugger, Target *target,
                                            const char *repl_options);
+typedef bool (*ScriptedInterfaceCreateInstance)(
+    lldb::ScriptLanguage language,
+    std::vector<llvm::StringRef> command_interpreter_usages,
+    std::vector<llvm::StringRef> api_usages);
 typedef int (*ComparisonFunction)(const void *, const void *);
 typedef void (*DebuggerInitializeCallback)(Debugger &debugger);
 /// Trace
diff --git a/lldb/source/Commands/CommandObjectScripting.cpp 
b/lldb/source/Commands/CommandObjectScripting.cpp
index fee0565a7c48a..1cc46ec87c00f 100644
--- a/lldb/source/Commands/CommandObjectScripting.cpp
+++ b/lldb/source/Commands/CommandObjectScripting.cpp
@@ -8,6 +8,7 @@
 
 #include "CommandObjectScripting.h"
 #include "lldb/Core/Debugger.h"
+#include "lldb/Core/PluginManager.h"
 #include "lldb/DataFormatters/DataVisualization.h"
 #include "lldb/Host/Config.h"
 #include "lldb/Host/OptionParser.h"
@@ -21,6 +22,8 @@
 using namespace lldb;
 using namespace lldb_private;
 
+#pragma mark CommandObjectScriptingRun
+
 #define LLDB_OPTIONS_scripting_run
 #include "CommandOptions.inc"
 
@@ -127,6 +130,157 @@ class CommandObjectScriptingRun : public CommandObjectRaw 
{
   CommandOptions m_options;
 };
 
+#pragma mark CommandObjectScriptingTemplateList
+
+#define LLDB_OPTIONS_scripting_template_list
+#include "CommandOptions.inc"
+
+class CommandObjectScriptingTemplateList : public CommandObjectParsed {
+public:
+  CommandObjectScriptingTemplateList(CommandInterpreter &interpreter)
+      : CommandObjectParsed(
+            interpreter, "scripting template list",
+            "List all the available scripting affordances templates. ",
+            "scripting template list [--language <scripting-language> --]") {}
+
+  ~CommandObjectScriptingTemplateList() override = default;
+
+  Options *GetOptions() override { return &m_options; }
+
+  class CommandOptions : public Options {
+  public:
+    CommandOptions() = default;
+    ~CommandOptions() override = default;
+    Status SetOptionValue(uint32_t option_idx, llvm::StringRef option_arg,
+                          ExecutionContext *execution_context) override {
+      Status error;
+      const int short_option = m_getopt_table[option_idx].val;
+
+      switch (short_option) {
+      case 'l':
+        m_language = (lldb::ScriptLanguage)OptionArgParser::ToOptionEnum(
+            option_arg, GetDefinitions()[option_idx].enum_values,
+            eScriptLanguageNone, error);
+        if (!error.Success())
+          error.SetErrorStringWithFormat("unrecognized value for language 
'%s'",
+                                         option_arg.str().c_str());
+        break;
+      default:
+        llvm_unreachable("Unimplemented option");
+      }
+
+      return error;
+    }
+
+    void OptionParsingStarting(ExecutionContext *execution_context) override {
+      m_language = lldb::eScriptLanguageDefault;
+    }
+
+    llvm::ArrayRef<OptionDefinition> GetDefinitions() override {
+      return llvm::ArrayRef(g_scripting_template_list_options);
+    }
+
+    lldb::ScriptLanguage m_language = lldb::eScriptLanguageDefault;
+  };
+
+protected:
+  void DoExecute(Args &command, CommandReturnObject &result) override {
+    Stream &s = result.GetOutputStream();
+    s.Printf("Available scripted extension templates:");
+
+    auto print_field = [&s](llvm::StringRef key, llvm::StringRef value,
+                            bool check_validity = false) {
+      if (!check_validity || !value.empty()) {
+        s.IndentMore();
+        s.Indent();
+        s << key << ": " << value << '\n';
+        s.IndentLess();
+      }
+    };
+
+    auto print_usages = [&s](llvm::StringRef usage_kind,
+                             std::vector<llvm::StringRef> &usages) {
+      s.IndentMore();
+      s.Indent();
+      s << usage_kind << " Usages:";
+      if (usages.empty())
+        s << " None\n";
+      else if (usages.size() == 1)
+        s << " " << usages.front() << '\n';
+      else {
+        s << '\n';
+        for (llvm::StringRef usage : usages) {
+          s.IndentMore();
+          s.Indent();
+          s << usage << '\n';
+          s.IndentLess();
+        }
+      }
+      s.IndentLess();
+    };
+
+    size_t num_listed_interface = 0;
+    size_t num_templates = PluginManager::GetNumScriptedInterfaces();
+    for (size_t i = 0; i < num_templates; i++) {
+      llvm::StringRef plugin_name =
+          PluginManager::GetScriptedInterfaceNameAtIndex(i);
+      if (plugin_name.empty())
+        break;
+
+      lldb::ScriptLanguage lang =
+          PluginManager::GetScriptedInterfaceLanguageAtIndex(i);
+      if (lang != m_options.m_language)
+        continue;
+
+      if (!num_listed_interface)
+        s.EOL();
+
+      num_listed_interface++;
+
+      llvm::StringRef desc =
+          PluginManager::GetScriptedInterfaceDescriptionAtIndex(i);
+      std::vector<llvm::StringRef> ci_usages =
+          
PluginManager::GetScriptedInterfaceCommandInterpreterUsagesAtIndex(i);
+      std::vector<llvm::StringRef> api_usages =
+          PluginManager::GetScriptedInterfaceAPIUsagesAtIndex(i);
+
+      print_field("Name", plugin_name);
+      print_field("Language", ScriptInterpreter::LanguageToString(lang));
+      print_field("Description", desc);
+      print_usages("Command Interpreter", ci_usages);
+      print_usages("API", api_usages);
+
+      if (i != num_templates - 1)
+        s.EOL();
+    }
+
+    if (!num_listed_interface)
+      s << " None\n";
+  }
+
+private:
+  CommandOptions m_options;
+};
+
+#pragma mark CommandObjectMultiwordScriptingTemplate
+
+// CommandObjectMultiwordScriptingTemplate
+
+class CommandObjectMultiwordScriptingTemplate : public CommandObjectMultiword {
+public:
+  CommandObjectMultiwordScriptingTemplate(CommandInterpreter &interpreter)
+      : CommandObjectMultiword(
+            interpreter, "scripting template",
+            "Commands for operating on the scripting templates.",
+            "scripting template [<subcommand-options>]") {
+    LoadSubCommand(
+        "list",
+        CommandObjectSP(new CommandObjectScriptingTemplateList(interpreter)));
+  }
+
+  ~CommandObjectMultiwordScriptingTemplate() override = default;
+};
+
 #pragma mark CommandObjectMultiwordScripting
 
 // CommandObjectMultiwordScripting
@@ -139,6 +293,9 @@ 
CommandObjectMultiwordScripting::CommandObjectMultiwordScripting(
           "scripting <subcommand> [<subcommand-options>]") {
   LoadSubCommand("run",
                  CommandObjectSP(new CommandObjectScriptingRun(interpreter)));
+  LoadSubCommand("template",
+                 CommandObjectSP(
+                     new 
CommandObjectMultiwordScriptingTemplate(interpreter)));
 }
 
 CommandObjectMultiwordScripting::~CommandObjectMultiwordScripting() = default;
diff --git a/lldb/source/Commands/Options.td b/lldb/source/Commands/Options.td
index 24e97f3bb97d3..6e5ed21b22ad8 100644
--- a/lldb/source/Commands/Options.td
+++ b/lldb/source/Commands/Options.td
@@ -841,6 +841,12 @@ let Command = "scripting run" in {
     " language. If none is specific the default scripting language is used.">;
 }
 
+let Command = "scripting template list" in {
+  def scripting_template_list_language : Option<"language", "l">,
+    EnumArg<"ScriptLang">, Desc<"Specify the scripting "
+    " language. If none is specified the default scripting language is used.">;
+}
+
 let Command = "source info" in {
   def source_info_count : Option<"count", "c">, Arg<"Count">,
     Desc<"The number of line entries to display.">;
diff --git a/lldb/source/Core/PluginManager.cpp 
b/lldb/source/Core/PluginManager.cpp
index b428370d7f333..d7d4d16938c0c 100644
--- a/lldb/source/Core/PluginManager.cpp
+++ b/lldb/source/Core/PluginManager.cpp
@@ -1479,6 +1479,92 @@ LanguageSet 
PluginManager::GetAllTypeSystemSupportedLanguagesForExpressions() {
   return all;
 }
 
+#pragma mark ScriptedInterfaces
+
+struct ScriptedInterfaceInstance
+    : public PluginInstance<ScriptedInterfaceCreateInstance> {
+  ScriptedInterfaceInstance(
+      llvm::StringRef name, llvm::StringRef description,
+      ScriptedInterfaceCreateInstance create_callback,
+      lldb::ScriptLanguage language,
+      std::vector<llvm::StringRef> command_interpreter_usages,
+      std::vector<llvm::StringRef> api_usages)
+      : PluginInstance<ScriptedInterfaceCreateInstance>(name, description,
+                                                        create_callback),
+        language(language),
+        command_interpreter_usages(command_interpreter_usages),
+        api_usages(api_usages) {}
+
+  lldb::ScriptLanguage language;
+  std::vector<llvm::StringRef> command_interpreter_usages;
+  std::vector<llvm::StringRef> api_usages;
+};
+
+typedef PluginInstances<ScriptedInterfaceInstance> ScriptedInterfaceInstances;
+
+static ScriptedInterfaceInstances &GetScriptedInterfaceInstances() {
+  static ScriptedInterfaceInstances g_instances;
+  return g_instances;
+}
+
+bool PluginManager::RegisterPlugin(
+    llvm::StringRef name, llvm::StringRef description,
+    ScriptedInterfaceCreateInstance create_callback,
+    lldb::ScriptLanguage language,
+    std::vector<llvm::StringRef> command_interpreter_usages,
+    std::vector<llvm::StringRef> api_usages) {
+  return GetScriptedInterfaceInstances().RegisterPlugin(
+      name, description, create_callback, language, command_interpreter_usages,
+      api_usages);
+}
+
+bool PluginManager::UnregisterPlugin(
+    ScriptedInterfaceCreateInstance create_callback) {
+  return GetScriptedInterfaceInstances().UnregisterPlugin(create_callback);
+}
+
+ScriptedInterfaceCreateInstance
+PluginManager::GetScriptedInterfaceCreateCallbackAtIndex(uint32_t idx) {
+  return GetScriptedInterfaceInstances().GetCallbackAtIndex(idx);
+}
+
+uint32_t PluginManager::GetNumScriptedInterfaces() {
+  return GetScriptedInterfaceInstances().GetInstances().size();
+}
+
+llvm::StringRef PluginManager::GetScriptedInterfaceNameAtIndex(uint32_t index) 
{
+  return GetScriptedInterfaceInstances().GetNameAtIndex(index);
+}
+
+llvm::StringRef
+PluginManager::GetScriptedInterfaceDescriptionAtIndex(uint32_t index) {
+  return GetScriptedInterfaceInstances().GetDescriptionAtIndex(index);
+}
+
+lldb::ScriptLanguage
+PluginManager::GetScriptedInterfaceLanguageAtIndex(uint32_t idx) {
+  const auto &instances = GetScriptedInterfaceInstances().GetInstances();
+  return idx < instances.size() ? instances[idx].language
+                                : ScriptLanguage::eScriptLanguageNone;
+}
+
+std::vector<llvm::StringRef>
+PluginManager::GetScriptedInterfaceCommandInterpreterUsagesAtIndex(
+    uint32_t idx) {
+  const auto &instances = GetScriptedInterfaceInstances().GetInstances();
+  if (idx >= instances.size())
+    return {};
+  return instances[idx].command_interpreter_usages;
+}
+
+std::vector<llvm::StringRef>
+PluginManager::GetScriptedInterfaceAPIUsagesAtIndex(uint32_t idx) {
+  const auto &instances = GetScriptedInterfaceInstances().GetInstances();
+  if (idx >= instances.size())
+    return {};
+  return instances[idx].api_usages;
+}
+
 #pragma mark REPL
 
 struct REPLInstance : public PluginInstance<REPLCreateInstance> {
@@ -1539,6 +1625,7 @@ void PluginManager::DebuggerInitialize(Debugger 
&debugger) {
   GetOperatingSystemInstances().PerformDebuggerCallback(debugger);
   GetStructuredDataPluginInstances().PerformDebuggerCallback(debugger);
   GetTracePluginInstances().PerformDebuggerCallback(debugger);
+  GetScriptedInterfaceInstances().PerformDebuggerCallback(debugger);
 }
 
 // This is the preferred new way to register plugin specific settings.  e.g.
diff --git a/lldb/source/Plugins/CMakeLists.txt 
b/lldb/source/Plugins/CMakeLists.txt
index 854f589f45ae0..34dd8c1eb22f6 100644
--- a/lldb/source/Plugins/CMakeLists.txt
+++ b/lldb/source/Plugins/CMakeLists.txt
@@ -29,6 +29,9 @@ add_subdirectory(UnwindAssembly)
 
 set(LLDB_STRIPPED_PLUGINS)
 get_property(LLDB_ALL_PLUGINS GLOBAL PROPERTY LLDB_PLUGINS)
+get_property(LLDB_EXTRA_PLUGINS GLOBAL PROPERTY LLDB_EXTRA_SCRIPT_PLUGINS)
+list(APPEND LLDB_ALL_PLUGINS ${LLDB_EXTRA_PLUGINS})
+
 
 set(LLDB_ENUM_PLUGINS "")
 
diff --git 
a/lldb/source/Plugins/ScriptInterpreter/Python/Interfaces/CMakeLists.txt 
b/lldb/source/Plugins/ScriptInterpreter/Python/Interfaces/CMakeLists.txt
index c60e4bb503a37..9c4db7f3adb86 100644
--- a/lldb/source/Plugins/ScriptInterpreter/Python/Interfaces/CMakeLists.txt
+++ b/lldb/source/Plugins/ScriptInterpreter/Python/Interfaces/CMakeLists.txt
@@ -19,6 +19,12 @@ if (LLDB_ENABLE_LIBEDIT)
   list(APPEND LLDB_LIBEDIT_LIBS LibEdit::LibEdit)
 endif()
 
+set_property(GLOBAL PROPERTY LLDB_EXTRA_SCRIPT_PLUGINS
+  lldbPluginOperatingSystemPythonInterface
+  lldbPluginScriptedProcessPythonInterface
+  lldbPluginScriptedThreadPlanPythonInterface
+)
+
 add_lldb_library(lldbPluginScriptInterpreterPythonInterfaces
   OperatingSystemPythonInterface.cpp
   ScriptedPythonInterface.cpp
diff --git 
a/lldb/source/Plugins/ScriptInterpreter/Python/Interfaces/OperatingSystemPythonInterface.cpp
 
b/lldb/source/Plugins/ScriptInterpreter/Python/Interfaces/OperatingSystemPythonInterface.cpp
index c162c7367c654..71eac890e7293 100644
--- 
a/lldb/source/Plugins/ScriptInterpreter/Python/Interfaces/OperatingSystemPythonInterface.cpp
+++ 
b/lldb/source/Plugins/ScriptInterpreter/Python/Interfaces/OperatingSystemPythonInterface.cpp
@@ -19,12 +19,15 @@
 #include "../SWIGPythonBridge.h"
 #include "../ScriptInterpreterPythonImpl.h"
 #include "OperatingSystemPythonInterface.h"
+#include "lldb/Core/PluginManager.h"
 
 using namespace lldb;
 using namespace lldb_private;
 using namespace lldb_private::python;
 using Locker = ScriptInterpreterPythonImpl::Locker;
 
+LLDB_PLUGIN_DEFINE(OperatingSystemPythonInterface)
+
 OperatingSystemPythonInterface::OperatingSystemPythonInterface(
     ScriptInterpreterPythonImpl &interpreter)
     : OperatingSystemInterface(), ScriptedThreadPythonInterface(interpreter) {}
@@ -79,4 +82,18 @@ 
OperatingSystemPythonInterface::GetRegisterContextForTID(lldb::tid_t tid) {
   return obj->GetAsString()->GetValue().str();
 }
 
+void OperatingSystemPythonInterface::Initialize() {
+  const std::vector<llvm::StringRef> ci_usages = {
+      "settings set target.process.python-os-plugin-path <script-path>",
+      "settings set process.experimental.os-plugin-reports-all-threads [0/1]"};
+  const std::vector<llvm::StringRef> api_usages = {};
+  PluginManager::RegisterPlugin(
+      GetPluginNameStatic(), llvm::StringRef("Mock thread state"),
+      CreateInstance, eScriptLanguagePython, ci_usages, api_usages);
+}
+
+void OperatingSystemPythonInterface::Terminate() {
+  PluginManager::UnregisterPlugin(CreateInstance);
+}
+
 #endif
diff --git 
a/lldb/source/Plugins/ScriptInterpreter/Python/Interfaces/OperatingSystemPythonInterface.h
 
b/lldb/source/Plugins/ScriptInterpreter/Python/Interfaces/OperatingSystemPythonInterface.h
index da7bbf13b1d55..ea8fd6a570076 100644
--- 
a/lldb/source/Plugins/ScriptInterpreter/Python/Interfaces/OperatingSystemPythonInterface.h
+++ 
b/lldb/source/Plugins/ScriptInterpreter/Python/Interfaces/OperatingSystemPythonInterface.h
@@ -20,7 +20,8 @@
 namespace lldb_private {
 class OperatingSystemPythonInterface
     : virtual public OperatingSystemInterface,
-      virtual public ScriptedThreadPythonInterface {
+      virtual public ScriptedThreadPythonInterface,
+      public PluginInterface {
 public:
   OperatingSystemPythonInterface(ScriptInterpreterPythonImpl &interpreter);
 
@@ -41,6 +42,16 @@ class OperatingSystemPythonInterface
   StructuredData::DictionarySP GetRegisterInfo() override;
 
   std::optional<std::string> GetRegisterContextForTID(lldb::tid_t tid) 
override;
+
+  static void Initialize();
+
+  static void Terminate();
+
+  static llvm::StringRef GetPluginNameStatic() {
+    return "OperatingSystemPythonInterface";
+  }
+
+  llvm::StringRef GetPluginName() override { return GetPluginNameStatic(); }
 };
 } // namespace lldb_private
 
diff --git 
a/lldb/source/Plugins/ScriptInterpreter/Python/Interfaces/ScriptedProcessPythonInterface.cpp
 
b/lldb/source/Plugins/ScriptInterpreter/Python/Interfaces/ScriptedProcessPythonInterface.cpp
index 313c597ce48f3..1464467fb3797 100644
--- 
a/lldb/source/Plugins/ScriptInterpreter/Python/Interfaces/ScriptedProcessPythonInterface.cpp
+++ 
b/lldb/source/Plugins/ScriptInterpreter/Python/Interfaces/ScriptedProcessPythonInterface.cpp
@@ -11,6 +11,7 @@
 // LLDB Python header must be included first
 #include "../lldb-python.h"
 #endif
+#include "lldb/Core/PluginManager.h"
 #include "lldb/Target/Process.h"
 #include "lldb/Utility/Log.h"
 #include "lldb/Utility/Status.h"
@@ -29,6 +30,8 @@ using namespace lldb_private;
 using namespace lldb_private::python;
 using Locker = ScriptInterpreterPythonImpl::Locker;
 
+LLDB_PLUGIN_DEFINE(ScriptedProcessPythonInterface)
+
 ScriptedProcessPythonInterface::ScriptedProcessPythonInterface(
     ScriptInterpreterPythonImpl &interpreter)
     : ScriptedProcessInterface(), ScriptedPythonInterface(interpreter) {}
@@ -208,4 +211,24 @@ StructuredData::DictionarySP 
ScriptedProcessPythonInterface::GetMetadata() {
   return dict;
 }
 
+void ScriptedProcessPythonInterface::Initialize() {
+  const std::vector<llvm::StringRef> ci_usages = {
+      "process attach -C <script-name> [-k key -v value ...]",
+      "process launch -C <script-name> [-k key -v value ...]"};
+  const std::vector<llvm::StringRef> api_usages = {
+      "SBAttachInfo.SetScriptedProcessClassName",
+      "SBAttachInfo.SetScriptedProcessDictionary",
+      "SBTarget.Attach",
+      "SBLaunchInfo.SetScriptedProcessClassName",
+      "SBLaunchInfo.SetScriptedProcessDictionary",
+      "SBTarget.Launch"};
+  PluginManager::RegisterPlugin(
+      GetPluginNameStatic(), llvm::StringRef("Mock process state"),
+      CreateInstance, eScriptLanguagePython, ci_usages, api_usages);
+}
+
+void ScriptedProcessPythonInterface::Terminate() {
+  PluginManager::UnregisterPlugin(CreateInstance);
+}
+
 #endif
diff --git 
a/lldb/source/Plugins/ScriptInterpreter/Python/Interfaces/ScriptedProcessPythonInterface.h
 
b/lldb/source/Plugins/ScriptInterpreter/Python/Interfaces/ScriptedProcessPythonInterface.h
index c75caa9340f25..8bfc3f2c0757c 100644
--- 
a/lldb/source/Plugins/ScriptInterpreter/Python/Interfaces/ScriptedProcessPythonInterface.h
+++ 
b/lldb/source/Plugins/ScriptInterpreter/Python/Interfaces/ScriptedProcessPythonInterface.h
@@ -19,7 +19,8 @@
 
 namespace lldb_private {
 class ScriptedProcessPythonInterface : public ScriptedProcessInterface,
-                                       public ScriptedPythonInterface {
+                                       public ScriptedPythonInterface,
+                                       public PluginInterface {
 public:
   ScriptedProcessPythonInterface(ScriptInterpreterPythonImpl &interpreter);
 
@@ -67,6 +68,16 @@ class ScriptedProcessPythonInterface : public 
ScriptedProcessInterface,
 
   StructuredData::DictionarySP GetMetadata() override;
 
+  static void Initialize();
+
+  static void Terminate();
+
+  static llvm::StringRef GetPluginNameStatic() {
+    return "ScriptedProcessPythonInterface";
+  }
+
+  llvm::StringRef GetPluginName() override { return GetPluginNameStatic(); }
+
 private:
   lldb::ScriptedThreadInterfaceSP CreateScriptedThreadInterface() override;
 };
diff --git 
a/lldb/source/Plugins/ScriptInterpreter/Python/Interfaces/ScriptedThreadPlanPythonInterface.cpp
 
b/lldb/source/Plugins/ScriptInterpreter/Python/Interfaces/ScriptedThreadPlanPythonInterface.cpp
index f23858c01277c..05b7fbaa37af3 100644
--- 
a/lldb/source/Plugins/ScriptInterpreter/Python/Interfaces/ScriptedThreadPlanPythonInterface.cpp
+++ 
b/lldb/source/Plugins/ScriptInterpreter/Python/Interfaces/ScriptedThreadPlanPythonInterface.cpp
@@ -18,11 +18,14 @@
 #include "../SWIGPythonBridge.h"
 #include "../ScriptInterpreterPythonImpl.h"
 #include "ScriptedThreadPlanPythonInterface.h"
+#include "lldb/Core/PluginManager.h"
 
 using namespace lldb;
 using namespace lldb_private;
 using namespace lldb_private::python;
 
+LLDB_PLUGIN_DEFINE(ScriptedThreadPlanPythonInterface)
+
 ScriptedThreadPlanPythonInterface::ScriptedThreadPlanPythonInterface(
     ScriptInterpreterPythonImpl &interpreter)
     : ScriptedThreadPlanInterface(), ScriptedPythonInterface(interpreter) {}
@@ -102,4 +105,19 @@ 
ScriptedThreadPlanPythonInterface::GetStopDescription(lldb::StreamSP &stream) {
   return llvm::Error::success();
 }
 
+void ScriptedThreadPlanPythonInterface::Initialize() {
+  const std::vector<llvm::StringRef> ci_usages = {
+      "thread step-scripted -C <script-name> [-k key -v value ...]"};
+  const std::vector<llvm::StringRef> api_usages = {
+      "SBThread.StepUsingScriptedThreadPlan"};
+  PluginManager::RegisterPlugin(
+      GetPluginNameStatic(),
+      llvm::StringRef("Alter thread stepping logic and stop reason"),
+      CreateInstance, eScriptLanguagePython, ci_usages, api_usages);
+}
+
+void ScriptedThreadPlanPythonInterface::Terminate() {
+  PluginManager::UnregisterPlugin(CreateInstance);
+}
+
 #endif
diff --git 
a/lldb/source/Plugins/ScriptInterpreter/Python/Interfaces/ScriptedThreadPlanPythonInterface.h
 
b/lldb/source/Plugins/ScriptInterpreter/Python/Interfaces/ScriptedThreadPlanPythonInterface.h
index 6ec89b9f59253..4dc4607fb9c9d 100644
--- 
a/lldb/source/Plugins/ScriptInterpreter/Python/Interfaces/ScriptedThreadPlanPythonInterface.h
+++ 
b/lldb/source/Plugins/ScriptInterpreter/Python/Interfaces/ScriptedThreadPlanPythonInterface.h
@@ -19,7 +19,8 @@
 
 namespace lldb_private {
 class ScriptedThreadPlanPythonInterface : public ScriptedThreadPlanInterface,
-                                          public ScriptedPythonInterface {
+                                          public ScriptedPythonInterface,
+                                          public PluginInterface {
 public:
   ScriptedThreadPlanPythonInterface(ScriptInterpreterPythonImpl &interpreter);
 
@@ -41,6 +42,16 @@ class ScriptedThreadPlanPythonInterface : public 
ScriptedThreadPlanInterface,
   lldb::StateType GetRunState() override;
 
   llvm::Error GetStopDescription(lldb::StreamSP &stream) override;
+
+  static void Initialize();
+
+  static void Terminate();
+
+  static llvm::StringRef GetPluginNameStatic() {
+    return "ScriptedThreadPlanPythonInterface";
+  }
+
+  llvm::StringRef GetPluginName() override { return GetPluginNameStatic(); }
 };
 } // namespace lldb_private
 

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