Make it simpler to add events to Python

The first patch in this series went through several iterations as I'd
forgotten how many places had to be touched to add a new event and a
new event type.

This patch simplifies the process using two new ".def" files.  Now, a
new event type can be added by adding a line to "py-event-types.def",
and a new event registry can be added by adding a line to
"py-all-events.def".

ChangeLog
2017-09-11  Tom Tromey  <tom@tromey.com>

	* python/python.c (do_start_initialization): Use
	py-event-types.def to initialize types.
	Define all object type structures.
	* python/python-internal.h: Don't declare event initialization
	functions.
	* python/py-threadevent.c (thread_event_object_type): Don't
	define.
	* python/py-stopevent.c (stop_event_object_type): Don't define.
	* python/py-signalevent.c (signal_event_object_type): Don't
	declare or define.
	* python/py-newobjfileevent.c (new_objfile_event_object_type)
	(clear_objfiles_event_object_type): Don't declare or define.
	* python/py-infevents.c (inferior_call_pre_event_object_type)
	(inferior_call_post_event_object_type)
	(register_changed_event_object_type)
	(memory_changed_event_object_type): Don't declare or define.
	* python/py-inferior.c (new_thread_event_object_type)
	(new_inferior_event_object_type)
	(inferior_deleted_event_object_type): Don't declare or define.
	* python/py-exitedevent.c (exited_event_object_type): Don't
	declare or define.
	* python/py-evts.c (gdbpy_initialize_py_events): Use
	py-all-events.def.
	* python/py-events.h (thread_event_object_type): Don't declare.
	(events_object): Use py-all-events.def.
	* python/py-event.h (GDBPY_NEW_EVENT_TYPE): Remove.  Use
	py-event-types.def.
	* python/py-event-types.def: New file.
	* python/py-continueevent.c (create_continue_event_object): Don't
	declare or define.
	* python/py-bpevent.c (breakpoint_event_object_type): Don't
	declare or define.
	* python/py-all-events.def: New file.

1 files changed, 4 insertions, 18 deletions

diff --git a/gdb/python/py-events.h b/gdb/python/py-events.h
index 2275d89..876b564 100644
--- a/gdb/python/py-events.h
+++ b/gdb/python/py-events.h
@@ -24,9 +24,6 @@
 #include "python-internal.h"
 #include "inferior.h"
 
-extern PyTypeObject thread_event_object_type
-    CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF ("event_object");
-
 /* Stores a list of objects to be notified when the event for which this
    registry tracks occurs.  */
 
@@ -42,21 +39,10 @@ typedef struct
 
 typedef struct
 {
-  eventregistry_object *stop;
-  eventregistry_object *cont;
-  eventregistry_object *exited;
-  eventregistry_object *new_objfile;
-  eventregistry_object *clear_objfiles;
-  eventregistry_object *new_inferior;
-  eventregistry_object *inferior_deleted;
-  eventregistry_object *new_thread;
-  eventregistry_object *inferior_call;
-  eventregistry_object *memory_changed;
-  eventregistry_object *register_changed;
-  eventregistry_object *breakpoint_created;
-  eventregistry_object *breakpoint_deleted;
-  eventregistry_object *breakpoint_modified;
-  eventregistry_object *before_prompt;
+#define GDB_PY_DEFINE_EVENT(name)		\
+  eventregistry_object *name;
+#include "py-all-events.def"
+#undef GDB_PY_DEFINE_EVENT
 
   PyObject *module;