[ScriptInterpreterPython] Move SWIG initialization into the Python plugin (NFC)

Abstract initialization of the Python SWIG support in the Python plugin.

llvm-svn: 356942

2 files changed, 202 insertions, 38 deletions

diff --git a/lldb/source/Plugins/ScriptInterpreter/Python/ScriptInterpreterPython.cpp b/lldb/source/Plugins/ScriptInterpreter/Python/ScriptInterpreterPython.cpp
index 012c5855e63..dc066a29b1c 100644
--- a/lldb/source/Plugins/ScriptInterpreter/Python/ScriptInterpreterPython.cpp
+++ b/lldb/source/Plugins/ScriptInterpreter/Python/ScriptInterpreterPython.cpp
@@ -57,6 +57,143 @@
 using namespace lldb;
 using namespace lldb_private;
 
+#ifndef LLDB_DISABLE_PYTHON
+
+// Defined in the SWIG source file
+#if PY_MAJOR_VERSION >= 3
+extern "C" PyObject *PyInit__lldb(void);
+
+#define LLDBSwigPyInit PyInit__lldb
+
+#else
+extern "C" void init_lldb(void);
+
+#define LLDBSwigPyInit init_lldb
+#endif
+
+// these are the Pythonic implementations of the required callbacks these are
+// scripting-language specific, which is why they belong here we still need to
+// use function pointers to them instead of relying on linkage-time resolution
+// because the SWIG stuff and this file get built at different times
+extern "C" bool LLDBSwigPythonBreakpointCallbackFunction(
+    const char *python_function_name, const char *session_dictionary_name,
+    const lldb::StackFrameSP &sb_frame,
+    const lldb::BreakpointLocationSP &sb_bp_loc);
+
+extern "C" bool LLDBSwigPythonWatchpointCallbackFunction(
+    const char *python_function_name, const char *session_dictionary_name,
+    const lldb::StackFrameSP &sb_frame, const lldb::WatchpointSP &sb_wp);
+
+extern "C" bool LLDBSwigPythonCallTypeScript(
+    const char *python_function_name, void *session_dictionary,
+    const lldb::ValueObjectSP &valobj_sp, void **pyfunct_wrapper,
+    const lldb::TypeSummaryOptionsSP &options_sp, std::string &retval);
+
+extern "C" void *
+LLDBSwigPythonCreateSyntheticProvider(const char *python_class_name,
+                                      const char *session_dictionary_name,
+                                      const lldb::ValueObjectSP &valobj_sp);
+
+extern "C" void *
+LLDBSwigPythonCreateCommandObject(const char *python_class_name,
+                                  const char *session_dictionary_name,
+                                  const lldb::DebuggerSP debugger_sp);
+
+extern "C" void *LLDBSwigPythonCreateScriptedThreadPlan(
+    const char *python_class_name, const char *session_dictionary_name,
+    const lldb::ThreadPlanSP &thread_plan_sp);
+
+extern "C" bool LLDBSWIGPythonCallThreadPlan(void *implementor,
+                                             const char *method_name,
+                                             Event *event_sp, bool &got_error);
+
+extern "C" void *LLDBSwigPythonCreateScriptedBreakpointResolver(
+    const char *python_class_name, const char *session_dictionary_name,
+    lldb_private::StructuredDataImpl *args, lldb::BreakpointSP &bkpt_sp);
+
+extern "C" unsigned int
+LLDBSwigPythonCallBreakpointResolver(void *implementor, const char *method_name,
+                                     lldb_private::SymbolContext *sym_ctx);
+
+extern "C" size_t LLDBSwigPython_CalculateNumChildren(void *implementor,
+                                                      uint32_t max);
+
+extern "C" void *LLDBSwigPython_GetChildAtIndex(void *implementor,
+                                                uint32_t idx);
+
+extern "C" int LLDBSwigPython_GetIndexOfChildWithName(void *implementor,
+                                                      const char *child_name);
+
+extern "C" void *LLDBSWIGPython_CastPyObjectToSBValue(void *data);
+
+extern lldb::ValueObjectSP
+LLDBSWIGPython_GetValueObjectSPFromSBValue(void *data);
+
+extern "C" bool LLDBSwigPython_UpdateSynthProviderInstance(void *implementor);
+
+extern "C" bool
+LLDBSwigPython_MightHaveChildrenSynthProviderInstance(void *implementor);
+
+extern "C" void *
+LLDBSwigPython_GetValueSynthProviderInstance(void *implementor);
+
+extern "C" bool
+LLDBSwigPythonCallCommand(const char *python_function_name,
+                          const char *session_dictionary_name,
+                          lldb::DebuggerSP &debugger, const char *args,
+                          lldb_private::CommandReturnObject &cmd_retobj,
+                          lldb::ExecutionContextRefSP exe_ctx_ref_sp);
+
+extern "C" bool
+LLDBSwigPythonCallCommandObject(void *implementor, lldb::DebuggerSP &debugger,
+                                const char *args,
+                                lldb_private::CommandReturnObject &cmd_retobj,
+                                lldb::ExecutionContextRefSP exe_ctx_ref_sp);
+
+extern "C" bool
+LLDBSwigPythonCallModuleInit(const char *python_module_name,
+                             const char *session_dictionary_name,
+                             lldb::DebuggerSP &debugger);
+
+extern "C" void *
+LLDBSWIGPythonCreateOSPlugin(const char *python_class_name,
+                             const char *session_dictionary_name,
+                             const lldb::ProcessSP &process_sp);
+
+extern "C" void *
+LLDBSWIGPython_CreateFrameRecognizer(const char *python_class_name,
+                                     const char *session_dictionary_name);
+
+extern "C" void *
+LLDBSwigPython_GetRecognizedArguments(void *implementor,
+                                      const lldb::StackFrameSP &frame_sp);
+
+extern "C" bool LLDBSWIGPythonRunScriptKeywordProcess(
+    const char *python_function_name, const char *session_dictionary_name,
+    lldb::ProcessSP &process, std::string &output);
+
+extern "C" bool LLDBSWIGPythonRunScriptKeywordThread(
+    const char *python_function_name, const char *session_dictionary_name,
+    lldb::ThreadSP &thread, std::string &output);
+
+extern "C" bool LLDBSWIGPythonRunScriptKeywordTarget(
+    const char *python_function_name, const char *session_dictionary_name,
+    lldb::TargetSP &target, std::string &output);
+
+extern "C" bool LLDBSWIGPythonRunScriptKeywordFrame(
+    const char *python_function_name, const char *session_dictionary_name,
+    lldb::StackFrameSP &frame, std::string &output);
+
+extern "C" bool LLDBSWIGPythonRunScriptKeywordValue(
+    const char *python_function_name, const char *session_dictionary_name,
+    lldb::ValueObjectSP &value, std::string &output);
+
+extern "C" void *
+LLDBSWIGPython_GetDynamicSetting(void *module, const char *setting,
+                                 const lldb::TargetSP &target_sp);
+
+#endif
+
 static ScriptInterpreterPython::SWIGInitCallback g_swig_init_callback = nullptr;
 static ScriptInterpreterPython::SWIGBreakpointCallbackFunction
     g_swig_breakpoint_callback = nullptr;
@@ -1967,7 +2104,7 @@ ScriptInterpreterPython::CreateScriptedBreakpointResolver(
     const char *class_name,
     StructuredDataImpl *args_data,
     lldb::BreakpointSP &bkpt_sp) {
-    
+
   if (class_name == nullptr || class_name[0] == '\0')
     return StructuredData::GenericSP();
 
@@ -2002,7 +2139,7 @@ ScriptInterpreterPython::ScriptedBreakpointResolverSearchCallback(
     StructuredData::GenericSP implementor_sp,
     SymbolContext *sym_ctx) {
   bool should_continue = false;
-  
+
   if (implementor_sp) {
     Locker py_lock(this,
                    Locker::AcquireLock | Locker::InitSession | Locker::NoSTDIN);
@@ -3258,6 +3395,32 @@ ScriptInterpreterPython::AcquireInterpreterLock() {
   return py_lock;
 }
 
+void ScriptInterpreterPython::InitializeSWIG() {
+#if !defined(LLDB_DISABLE_PYTHON)
+  InitializeInterpreter(
+      LLDBSwigPyInit, LLDBSwigPythonBreakpointCallbackFunction,
+      LLDBSwigPythonWatchpointCallbackFunction, LLDBSwigPythonCallTypeScript,
+      LLDBSwigPythonCreateSyntheticProvider, LLDBSwigPythonCreateCommandObject,
+      LLDBSwigPython_CalculateNumChildren, LLDBSwigPython_GetChildAtIndex,
+      LLDBSwigPython_GetIndexOfChildWithName,
+      LLDBSWIGPython_CastPyObjectToSBValue,
+      LLDBSWIGPython_GetValueObjectSPFromSBValue,
+      LLDBSwigPython_UpdateSynthProviderInstance,
+      LLDBSwigPython_MightHaveChildrenSynthProviderInstance,
+      LLDBSwigPython_GetValueSynthProviderInstance, LLDBSwigPythonCallCommand,
+      LLDBSwigPythonCallCommandObject, LLDBSwigPythonCallModuleInit,
+      LLDBSWIGPythonCreateOSPlugin, LLDBSWIGPython_CreateFrameRecognizer,
+      LLDBSwigPython_GetRecognizedArguments,
+      LLDBSWIGPythonRunScriptKeywordProcess,
+      LLDBSWIGPythonRunScriptKeywordThread,
+      LLDBSWIGPythonRunScriptKeywordTarget, LLDBSWIGPythonRunScriptKeywordFrame,
+      LLDBSWIGPythonRunScriptKeywordValue, LLDBSWIGPython_GetDynamicSetting,
+      LLDBSwigPythonCreateScriptedThreadPlan, LLDBSWIGPythonCallThreadPlan,
+      LLDBSwigPythonCreateScriptedBreakpointResolver,
+      LLDBSwigPythonCallBreakpointResolver);
+#endif
+}
+
 void ScriptInterpreterPython::InitializeInterpreter(
     SWIGInitCallback swig_init_callback,
     SWIGBreakpointCallbackFunction swig_breakpoint_callback,
diff --git a/lldb/source/Plugins/ScriptInterpreter/Python/ScriptInterpreterPython.h b/lldb/source/Plugins/ScriptInterpreter/Python/ScriptInterpreterPython.h
index 8dcc6fde3f0..dc91fd1cb7e 100644
--- a/lldb/source/Plugins/ScriptInterpreter/Python/ScriptInterpreterPython.h
+++ b/lldb/source/Plugins/ScriptInterpreter/Python/ScriptInterpreterPython.h
@@ -218,7 +218,7 @@ public:
   lldb::StateType
   ScriptedThreadPlanGetRunState(StructuredData::ObjectSP implementor_sp,
                                 bool &script_error) override;
-                                
+
   StructuredData::GenericSP
   CreateScriptedBreakpointResolver(const char *class_name,
                                    StructuredDataImpl *args_data,
@@ -396,41 +396,6 @@ public:
 
   void ResetOutputFileHandle(FILE *new_fh) override;
 
-  static void InitializePrivate();
-
-  static void InitializeInterpreter(
-      SWIGInitCallback python_swig_init_callback,
-      SWIGBreakpointCallbackFunction swig_breakpoint_callback,
-      SWIGWatchpointCallbackFunction swig_watchpoint_callback,
-      SWIGPythonTypeScriptCallbackFunction swig_typescript_callback,
-      SWIGPythonCreateSyntheticProvider swig_synthetic_script,
-      SWIGPythonCreateCommandObject swig_create_cmd,
-      SWIGPythonCalculateNumChildren swig_calc_children,
-      SWIGPythonGetChildAtIndex swig_get_child_index,
-      SWIGPythonGetIndexOfChildWithName swig_get_index_child,
-      SWIGPythonCastPyObjectToSBValue swig_cast_to_sbvalue,
-      SWIGPythonGetValueObjectSPFromSBValue swig_get_valobj_sp_from_sbvalue,
-      SWIGPythonUpdateSynthProviderInstance swig_update_provider,
-      SWIGPythonMightHaveChildrenSynthProviderInstance
-          swig_mighthavechildren_provider,
-      SWIGPythonGetValueSynthProviderInstance swig_getvalue_provider,
-      SWIGPythonCallCommand swig_call_command,
-      SWIGPythonCallCommandObject swig_call_command_object,
-      SWIGPythonCallModuleInit swig_call_module_init,
-      SWIGPythonCreateOSPlugin swig_create_os_plugin,
-      SWIGPythonCreateFrameRecognizer swig_create_frame_recognizer,
-      SWIGPythonGetRecognizedArguments swig_get_recognized_arguments,
-      SWIGPythonScriptKeyword_Process swig_run_script_keyword_process,
-      SWIGPythonScriptKeyword_Thread swig_run_script_keyword_thread,
-      SWIGPythonScriptKeyword_Target swig_run_script_keyword_target,
-      SWIGPythonScriptKeyword_Frame swig_run_script_keyword_frame,
-      SWIGPythonScriptKeyword_Value swig_run_script_keyword_value,
-      SWIGPython_GetDynamicSetting swig_plugin_get,
-      SWIGPythonCreateScriptedThreadPlan swig_thread_plan_script,
-      SWIGPythonCallThreadPlan swig_call_thread_plan,
-      SWIGPythonCreateScriptedBreakpointResolver swig_bkpt_resolver_script,
-      SWIGPythonCallBreakpointResolver swig_call_breakpoint_resolver);
-
   const char *GetDictionaryName() { return m_dictionary_name.c_str(); }
 
   PyThreadState *GetThreadState() { return m_command_thread_state; }
@@ -451,6 +416,7 @@ public:
   //------------------------------------------------------------------
   // Static Functions
   //------------------------------------------------------------------
+  static void InitializeSWIG();
   static void Initialize();
 
   static void Terminate();
@@ -512,6 +478,41 @@ public:
   };
 
 protected:
+  static void InitializePrivate();
+
+  static void InitializeInterpreter(
+      SWIGInitCallback python_swig_init_callback,
+      SWIGBreakpointCallbackFunction swig_breakpoint_callback,
+      SWIGWatchpointCallbackFunction swig_watchpoint_callback,
+      SWIGPythonTypeScriptCallbackFunction swig_typescript_callback,
+      SWIGPythonCreateSyntheticProvider swig_synthetic_script,
+      SWIGPythonCreateCommandObject swig_create_cmd,
+      SWIGPythonCalculateNumChildren swig_calc_children,
+      SWIGPythonGetChildAtIndex swig_get_child_index,
+      SWIGPythonGetIndexOfChildWithName swig_get_index_child,
+      SWIGPythonCastPyObjectToSBValue swig_cast_to_sbvalue,
+      SWIGPythonGetValueObjectSPFromSBValue swig_get_valobj_sp_from_sbvalue,
+      SWIGPythonUpdateSynthProviderInstance swig_update_provider,
+      SWIGPythonMightHaveChildrenSynthProviderInstance
+          swig_mighthavechildren_provider,
+      SWIGPythonGetValueSynthProviderInstance swig_getvalue_provider,
+      SWIGPythonCallCommand swig_call_command,
+      SWIGPythonCallCommandObject swig_call_command_object,
+      SWIGPythonCallModuleInit swig_call_module_init,
+      SWIGPythonCreateOSPlugin swig_create_os_plugin,
+      SWIGPythonCreateFrameRecognizer swig_create_frame_recognizer,
+      SWIGPythonGetRecognizedArguments swig_get_recognized_arguments,
+      SWIGPythonScriptKeyword_Process swig_run_script_keyword_process,
+      SWIGPythonScriptKeyword_Thread swig_run_script_keyword_thread,
+      SWIGPythonScriptKeyword_Target swig_run_script_keyword_target,
+      SWIGPythonScriptKeyword_Frame swig_run_script_keyword_frame,
+      SWIGPythonScriptKeyword_Value swig_run_script_keyword_value,
+      SWIGPython_GetDynamicSetting swig_plugin_get,
+      SWIGPythonCreateScriptedThreadPlan swig_thread_plan_script,
+      SWIGPythonCallThreadPlan swig_call_thread_plan,
+      SWIGPythonCreateScriptedBreakpointResolver swig_bkpt_resolver_script,
+      SWIGPythonCallBreakpointResolver swig_call_breakpoint_resolver);
+
   class SynchronicityHandler {
   private:
     lldb::DebuggerSP m_debugger_sp;