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New python events: infcall, register/memory changed.

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gdb/ChangeLog:

	* NEWS: Mention new Python events.
	* Makefile.in (SUBDIR_PYTHON_OBS): Add py-infevents.o.
	(SUBDIR_PYTHON_SRCS): Add py-infevents.c.
	(py-infevents.o): New rule.
	* doc/observer.texi (inferior_call_pre, inferior_call_post)
	(memory_changed, register_changed): New observers.
	* infcall.c (call_function_by_hand): Notify observer before and
	after inferior call.
	* python/py-event.h (inferior_call_kind): New enum.
	(emit_inferior_call_event): New prototype.
	(emit_register_changed_event): New prototype.
	(emit_memory_changed_event): New prototype.
	* python/py-events.h (events_object): New registries
	inferior_call, memory_changed and register_changed.
	* python/py-evts.c (gdbpy_initialize_py_events): Add the
	inferior_call, memory_changed and register_changed registries.
	* python/py-infevents.c: New.
	* python/py-inferior.c (python_on_inferior_call_pre)
	(python_on_inferior_call_post, python_on_register_change)
	(python_on_memory_change): New functions.
	(gdbpy_initialize_inferior): Attach python handler to new
	observers.
	* python/py-infthread.c(gdbpy_create_ptid_object): New.
	(thpy_get_ptid) Use gdbpy_create_ptid_object.
	* python/python-internal.h:
	(gdbpy_create_ptid_object)
	(gdbpy_initialize_inferior_call_pre_event)
	(gdbpy_initialize_inferior_call_post_event)
	(gdbpy_initialize_register_changed_event)
	(gdbpy_initialize_memory_changed_event): New prototypes.
	* python/python.c (_initialize_python): Initialize new events.
	* valops.c (value_assign): Notify register_changed observer.

gdb/doc/ChangeLog:

	* python.texi (Events In Python): Document new events
	InferiorCallPreEvent, InferiorCallPostEvent, MemoryChangedEvent
	and RegisterChangedEvent.

gdb/testsuite/ChangeLog:

	* gdb.python/py-events.py (inferior_call_handler): New.
	(register_changed_handler, memory_changed_handler): New.
	(test_events.invoke): Register new handlers.
	* gdb.python/py-events.exp: Add tests for inferior call,
	memory_changed and register_changed events.
This commit is contained in:
Doug Evans
2014-12-02 10:59:08 -08:00
parent 007baf27e4
commit dc6c87175b
19 changed files with 682 additions and 14 deletions
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39
gdb/python/py-infthread.c
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@ -134,23 +134,10 @@ thpy_get_ptid (PyObject *self, void *closure)
int pid;
long tid, lwp;
thread_object *thread_obj = (thread_object *) self;
PyObject *ret;
THPY_REQUIRE_VALID (thread_obj);
ret = PyTuple_New (3);
if (!ret)
return NULL;
pid = ptid_get_pid (thread_obj->thread->ptid);
lwp = ptid_get_lwp (thread_obj->thread->ptid);
tid = ptid_get_tid (thread_obj->thread->ptid);
PyTuple_SET_ITEM (ret, 0, PyInt_FromLong (pid));
PyTuple_SET_ITEM (ret, 1, PyInt_FromLong (lwp));
PyTuple_SET_ITEM (ret, 2, PyInt_FromLong (tid));
return ret;
return gdbpy_create_ptid_object (thread_obj->thread->ptid);
}
/* Implementation of InferiorThread.switch ().
@ -236,6 +223,30 @@ thpy_is_valid (PyObject *self, PyObject *args)
Py_RETURN_TRUE;
}
/* Return a reference to a new Python object representing a ptid_t.
The object is a tuple containing (pid, lwp, tid). */
PyObject *
gdbpy_create_ptid_object (ptid_t ptid)
{
int pid;
long tid, lwp;
PyObject *ret;
ret = PyTuple_New (3);
if (!ret)
return NULL;
pid = ptid_get_pid (ptid);
lwp = ptid_get_lwp (ptid);
tid = ptid_get_tid (ptid);
PyTuple_SET_ITEM (ret, 0, PyInt_FromLong (pid));
PyTuple_SET_ITEM (ret, 1, PyInt_FromLong (lwp));
PyTuple_SET_ITEM (ret, 2, PyInt_FromLong (tid));
return ret;
}
/* Implementation of gdb.selected_thread () -> gdb.InferiorThread.
Returns the selected thread object. */