1 /* Python interface to inferior function events.
3 Copyright (C) 2013-2017 Free Software Foundation, Inc.
5 This file is part of GDB.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program. If not, see <http://www.gnu.org/licenses/>. */
24 extern PyTypeObject inferior_call_pre_event_object_type
25 CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF ("event_object");
26 extern PyTypeObject inferior_call_post_event_object_type
27 CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF ("event_object");
28 extern PyTypeObject register_changed_event_object_type
29 CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF ("event_object");
30 extern PyTypeObject memory_changed_event_object_type
31 CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF ("event_object");
33 /* Construct either a gdb.InferiorCallPreEvent or a
34 gdb.InferiorCallPostEvent. */
37 create_inferior_call_event_object (inferior_call_kind flag
, ptid_t ptid
,
45 case INFERIOR_CALL_PRE
:
46 event
.reset (create_event_object (&inferior_call_pre_event_object_type
));
48 case INFERIOR_CALL_POST
:
49 event
.reset (create_event_object (&inferior_call_post_event_object_type
));
52 gdb_assert_not_reached ("invalid inferior_call_kind");
55 gdbpy_ref
<> ptid_obj (gdbpy_create_ptid_object (ptid
));
59 if (evpy_add_attribute (event
.get (), "ptid", ptid_obj
.get ()) < 0)
62 gdbpy_ref
<> addr_obj (PyLong_FromLongLong (addr
));
66 if (evpy_add_attribute (event
.get (), "address", addr_obj
.get ()) < 0)
69 return event
.release ();
72 /* Construct a gdb.RegisterChangedEvent containing the affected
76 create_register_changed_event_object (struct frame_info
*frame
,
79 gdbpy_ref
<> event (create_event_object (®ister_changed_event_object_type
));
83 gdbpy_ref
<> frame_obj (frame_info_to_frame_object (frame
));
84 if (frame_obj
== NULL
)
87 if (evpy_add_attribute (event
.get (), "frame", frame_obj
.get ()) < 0)
90 gdbpy_ref
<> regnum_obj (PyLong_FromLongLong (regnum
));
91 if (regnum_obj
== NULL
)
94 if (evpy_add_attribute (event
.get (), "regnum", regnum_obj
.get ()) < 0)
97 return event
.release ();
100 /* Construct a gdb.MemoryChangedEvent describing the extent of the
104 create_memory_changed_event_object (CORE_ADDR addr
, ssize_t len
)
106 gdbpy_ref
<> event (create_event_object (&memory_changed_event_object_type
));
111 gdbpy_ref
<> addr_obj (PyLong_FromLongLong (addr
));
112 if (addr_obj
== NULL
)
115 if (evpy_add_attribute (event
.get (), "address", addr_obj
.get ()) < 0)
118 gdbpy_ref
<> len_obj (PyLong_FromLong (len
));
122 if (evpy_add_attribute (event
.get (), "length", len_obj
.get ()) < 0)
125 return event
.release ();
128 /* Callback function which notifies observers when an event occurs which
129 calls a function in the inferior.
130 This function will create a new Python inferior-call event object.
131 Return -1 if emit fails. */
134 emit_inferior_call_event (inferior_call_kind flag
, ptid_t thread
,
137 if (evregpy_no_listeners_p (gdb_py_events
.inferior_call
))
140 gdbpy_ref
<> event (create_inferior_call_event_object (flag
, thread
, addr
));
142 return evpy_emit_event (event
.get (), gdb_py_events
.inferior_call
);
146 /* Callback when memory is modified by the user. This function will
147 create a new Python memory changed event object. */
150 emit_memory_changed_event (CORE_ADDR addr
, ssize_t len
)
152 if (evregpy_no_listeners_p (gdb_py_events
.memory_changed
))
155 gdbpy_ref
<> event (create_memory_changed_event_object (addr
, len
));
157 return evpy_emit_event (event
.get (), gdb_py_events
.memory_changed
);
161 /* Callback when a register is modified by the user. This function
162 will create a new Python register changed event object. */
165 emit_register_changed_event (struct frame_info
* frame
, int regnum
)
167 if (evregpy_no_listeners_p (gdb_py_events
.register_changed
))
170 gdbpy_ref
<> event (create_register_changed_event_object (frame
, regnum
));
172 return evpy_emit_event (event
.get (), gdb_py_events
.register_changed
);
177 GDBPY_NEW_EVENT_TYPE (inferior_call_pre
,
178 "gdb.InferiorCallPreEvent",
179 "InferiorCallPreEvent",
180 "GDB inferior function pre-call event object",
183 GDBPY_NEW_EVENT_TYPE (inferior_call_post
,
184 "gdb.InferiorCallPostEvent",
185 "InferiorCallPostEvent",
186 "GDB inferior function post-call event object",
189 GDBPY_NEW_EVENT_TYPE (register_changed
,
190 "gdb.RegisterChangedEvent",
191 "RegisterChangedEvent",
192 "GDB register change event object",
195 GDBPY_NEW_EVENT_TYPE (memory_changed
,
196 "gdb.MemoryChangedEvent",
197 "MemoryChangedEvent",
198 "GDB memory change event object",