+2014-12-02 Nick Bull <nicholaspbull@gmail.com>
+
+ * 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.
+
2014-12-02 Doug Evans <dje@google.com>
* python/py-infthread.c: Whitespace fixes.
py-function.o \
py-gdb-readline.o \
py-inferior.o \
+ py-infevents.o \
py-infthread.o \
py-lazy-string.o \
py-linetable.o \
python/py-function.c \
python/py-gdb-readline.c \
python/py-inferior.c \
+ python/py-infevents.c \
python/py-infthread.c \
python/py-lazy-string.c \
python/py-linetable.c \
$(COMPILE) $(PYTHON_CFLAGS) $(srcdir)/python/py-inferior.c
$(POSTCOMPILE)
+py-infevents.o: $(srcdir)/python/py-infevents.c
+ $(COMPILE) $(PYTHON_CFLAGS) $(srcdir)/python/py-infevents.c
+ $(POSTCOMPILE)
+
py-infthread.o: $(srcdir)/python/py-infthread.c
$(COMPILE) $(PYTHON_CFLAGS) $(srcdir)/python/py-infthread.c
$(POSTCOMPILE)
What has changed in GDB?
(Organized release by release)
+* Python Scripting
+
+ New events which are triggered when GDB modifies the state of the
+ inferior.
+
+ ** gdb.events.inferior_call_pre: Function call is about to be made.
+ ** gdb.events.inferior_call_post: Function call has just been made.
+ ** gdb.events.memory_changed: A memory location has been altered.
+ ** gdb.events.register_changed: A register has been altered.
+
*** Changes since GDB 7.8
* GDB now supports hardware watchpoints on x86 GNU Hurd.
+2014-12-02 Nick Bull <nicholaspbull@gmail.com>
+
+ * python.texi (Events In Python): Document new events
+ InferiorCallPreEvent, InferiorCallPostEvent, MemoryChangedEvent
+ and RegisterChangedEvent.
+
2014-11-30 Jan Kratochvil <jan.kratochvil@redhat.com>
Add add-auto-load-scripts-directory.
The trace state value @var{tsv} is modified.
@end deftypefun
+@deftypefun void inferior_call_pre (ptid_t @var{thread}, CORE_ADDR @var{address})
+An inferior function at @var{address} is about to be called in thread
+@var{thread}.
+@end deftypefun
+
+@deftypefun void inferior_call_post (ptid_t @var{thread}, CORE_ADDR @var{address})
+The inferior function at @var{address} has just been called. This observer
+is called even if the inferior exits during the call. @var{thread} is the
+thread in which the function was called, which may be different from the
+current thread.
+@end deftypefun
+
+@deftypefun void register_changed (struct frame_info *@var{frame}, int @var{regnum})
+A register in the inferior has been modified by the @value{GDBN} user.
+@end deftypefun
+
@deftypefun void test_notification (int @var{somearg})
This observer is used for internal testing. Do not use.
See testsuite/gdb.gdb/observer.exp.
been cleared. @xref{Progspaces In Python}.
@end defvar
+@item events.inferior_call_pre
+Emits @code{gdb.InferiorCallPreEvent} which indicates that a function in
+the inferior is about to be called.
+
+@defvar InferiorCallPreEvent.ptid
+The thread in which the call will be run.
+@end defvar
+
+@defvar InferiorCallPreEvent.address
+The location of the function to be called.
+@end defvar
+
+@item events.inferior_call_post
+Emits @code{gdb.InferiorCallPostEvent} which indicates that a function in
+the inferior has returned.
+
+@defvar InferiorCallPostEvent.ptid
+The thread in which the call was run.
+@end defvar
+
+@defvar InferiorCallPostEvent.address
+The location of the function that was called.
+@end defvar
+
+@item events.memory_changed
+Emits @code{gdb.MemoryChangedEvent} which indicates that the memory of the
+inferior has been modified by the @value{GDBN} user, for instance via a
+command like @w{@code{set *addr = value}}. The event has the following
+attributes:
+
+@defvar MemoryChangedEvent.address
+The start address of the changed region.
+@end defvar
+
+@defvar MemoryChangedEvent.length
+Length in bytes of the changed region.
+@end defvar
+
+@item events.register_changed
+Emits @code{gdb.RegisterChangedEvent} which indicates that a register in the
+inferior has been modified by the @value{GDBN} user.
+
+@defvar RegisterChangedEvent.frame
+A gdb.Frame object representing the frame in which the register was modified.
+@end defvar
+@defvar RegisterChangedEvent.regnum
+Denotes which register was modified.
+@end defvar
+
@end table
@node Threads In Python
#include "ada-lang.h"
#include "gdbthread.h"
#include "event-top.h"
+#include "observer.h"
/* If we can't find a function's name from its address,
we print this instead. */
target_values_type = values_type;
}
+ observer_notify_inferior_call_pre (inferior_ptid, funaddr);
+
/* Determine the location of the breakpoint (and possibly other
stuff) that the called function will return to. The SPARC, for a
function returning a structure or union, needs to make space for
e = run_inferior_call (tp, real_pc);
}
+ observer_notify_inferior_call_post (call_thread_ptid, funaddr);
+
/* Rethrow an error if we got one trying to run the inferior. */
if (e.reason < 0)
extern int emit_continue_event (ptid_t ptid);
extern int emit_exited_event (const LONGEST *exit_code, struct inferior *inf);
+/* For inferior function call events, discriminate whether event is
+ before or after the call. */
+
+typedef enum
+{
+ /* Before the call */
+ INFERIOR_CALL_PRE,
+ /* after the call */
+ INFERIOR_CALL_POST,
+} inferior_call_kind;
+
+extern int emit_inferior_call_event (inferior_call_kind kind,
+ ptid_t thread, CORE_ADDR addr);
+extern int emit_register_changed_event (struct frame_info *frame,
+ int regnum);
+extern int emit_memory_changed_event (CORE_ADDR addr, ssize_t len);
extern int evpy_emit_event (PyObject *event,
eventregistry_object *registry)
CPYCHECKER_STEALS_REFERENCE_TO_ARG (1);
eventregistry_object *exited;
eventregistry_object *new_objfile;
eventregistry_object *clear_objfiles;
+ eventregistry_object *inferior_call;
+ eventregistry_object *memory_changed;
+ eventregistry_object *register_changed;
PyObject *module;
if (add_new_registry (&gdb_py_events.exited, "exited") < 0)
return -1;
+ if (add_new_registry (&gdb_py_events.inferior_call,
+ "inferior_call") < 0)
+ return -1;
+
+ if (add_new_registry (&gdb_py_events.memory_changed,
+ "memory_changed") < 0)
+ return -1;
+
+ if (add_new_registry (&gdb_py_events.register_changed,
+ "register_changed") < 0)
+ return -1;
+
if (add_new_registry (&gdb_py_events.new_objfile, "new_objfile") < 0)
return -1;
do_cleanups (cleanup);
}
+/* Callback, registered as an observer, that notifies Python listeners
+ when an inferior function call is about to be made. */
+
+static void
+python_on_inferior_call_pre (ptid_t thread, CORE_ADDR address)
+{
+ struct cleanup *cleanup;
+
+ cleanup = ensure_python_env (target_gdbarch (), current_language);
+
+ if (emit_inferior_call_event (INFERIOR_CALL_PRE, thread, address) < 0)
+ gdbpy_print_stack ();
+
+ do_cleanups (cleanup);
+}
+
+/* Callback, registered as an observer, that notifies Python listeners
+ when an inferior function call has completed. */
+
+static void
+python_on_inferior_call_post (ptid_t thread, CORE_ADDR address)
+{
+ struct cleanup *cleanup;
+
+ cleanup = ensure_python_env (target_gdbarch (), current_language);
+
+ if (emit_inferior_call_event (INFERIOR_CALL_POST, thread, address) < 0)
+ gdbpy_print_stack ();
+
+ do_cleanups (cleanup);
+}
+
+/* Callback, registered as an observer, that notifies Python listeners
+ when a part of memory has been modified by user action (eg via a
+ 'set' command). */
+
+static void
+python_on_memory_change (struct inferior *inferior, CORE_ADDR addr, ssize_t len, const bfd_byte *data)
+{
+ struct cleanup *cleanup;
+
+ cleanup = ensure_python_env (target_gdbarch (), current_language);
+
+ if (emit_memory_changed_event (addr, len) < 0)
+ gdbpy_print_stack ();
+
+ do_cleanups (cleanup);
+}
+
+/* Callback, registered as an observer, that notifies Python listeners
+ when a register has been modified by user action (eg via a 'set'
+ command). */
+
+static void
+python_on_register_change (struct frame_info *frame, int regnum)
+{
+ struct cleanup *cleanup;
+
+ cleanup = ensure_python_env (target_gdbarch (), current_language);
+
+ if (emit_register_changed_event (frame, regnum) < 0)
+ gdbpy_print_stack ();
+
+ do_cleanups (cleanup);
+}
+
static void
python_inferior_exit (struct inferior *inf)
{
observer_attach_thread_exit (delete_thread_object);
observer_attach_normal_stop (python_on_normal_stop);
observer_attach_target_resumed (python_on_resume);
+ observer_attach_inferior_call_pre (python_on_inferior_call_pre);
+ observer_attach_inferior_call_post (python_on_inferior_call_post);
+ observer_attach_memory_changed (python_on_memory_change);
+ observer_attach_register_changed (python_on_register_change);
observer_attach_inferior_exit (python_inferior_exit);
observer_attach_new_objfile (python_new_objfile);
--- /dev/null
+/* Python interface to inferior function events.
+
+ Copyright (C) 2013, 2014 Free Software Foundation, Inc.
+
+ This file is part of GDB.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
+
+#include "defs.h"
+#include "py-event.h"
+
+static PyTypeObject inferior_call_pre_event_object_type
+ CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF ("event_object");
+static PyTypeObject inferior_call_post_event_object_type
+ CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF ("event_object");
+static PyTypeObject register_changed_event_object_type
+ CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF ("event_object");
+static PyTypeObject memory_changed_event_object_type
+ CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF ("event_object");
+
+/* Construct either a gdb.InferiorCallPreEvent or a
+ gdb.InferiorCallPostEvent. */
+
+static PyObject *
+create_inferior_call_event_object (inferior_call_kind flag, ptid_t ptid,
+ CORE_ADDR addr)
+{
+ int pid;
+ long tid, lwp;
+ PyObject *event;
+ PyObject *ptid_obj = NULL;
+ PyObject *addr_obj = NULL;
+ int failed;
+ struct cleanup *cleanups;
+ struct cleanup *member_cleanups;
+
+ switch (flag)
+ {
+ case INFERIOR_CALL_PRE:
+ event = create_event_object (&inferior_call_pre_event_object_type);
+ break;
+ case INFERIOR_CALL_POST:
+ event = create_event_object (&inferior_call_post_event_object_type);
+ break;
+ default:
+ return NULL;
+ }
+
+ cleanups = make_cleanup_py_decref (event);
+
+ ptid_obj = gdbpy_create_ptid_object (ptid);
+ if (ptid_obj == NULL)
+ goto fail;
+ member_cleanups = make_cleanup_py_decref (ptid_obj);
+
+ failed = evpy_add_attribute (event, "ptid", ptid_obj) < 0;
+ if (failed)
+ goto fail;
+
+ addr_obj = PyLong_FromLongLong (addr);
+ if (addr_obj == NULL)
+ goto fail;
+ make_cleanup_py_decref (addr_obj);
+
+ failed = evpy_add_attribute (event, "address", addr_obj) < 0;
+ if (failed)
+ goto fail;
+
+ do_cleanups (member_cleanups);
+ discard_cleanups (cleanups);
+ return event;
+
+ fail:
+ do_cleanups (cleanups);
+ return NULL;
+}
+
+/* Construct a gdb.RegisterChangedEvent containing the affected
+ register number. */
+
+static PyObject *
+create_register_changed_event_object (struct frame_info *frame,
+ int regnum)
+{
+ PyObject *event;
+ PyObject *frame_obj = NULL;
+ PyObject *regnum_obj = NULL;
+ int failed;
+ struct cleanup *cleanups;
+ struct cleanup *member_cleanups;
+
+ event = create_event_object (®ister_changed_event_object_type);
+ if (event == NULL)
+ return NULL;
+
+ cleanups = make_cleanup_py_decref (event);
+
+ frame_obj = frame_info_to_frame_object (frame);
+ if (frame_obj == NULL)
+ goto fail;
+ member_cleanups = make_cleanup_py_decref (frame_obj);
+
+ failed = evpy_add_attribute (event, "frame", frame_obj) < 0;
+ if (failed)
+ goto fail;
+
+ regnum_obj = PyLong_FromLongLong (regnum);
+ if (regnum_obj == NULL)
+ goto fail;
+ make_cleanup_py_decref (regnum_obj);
+
+ failed = evpy_add_attribute (event, "regnum", regnum_obj) < 0;
+ if (failed)
+ goto fail;
+
+ do_cleanups (member_cleanups);
+ discard_cleanups (cleanups);
+ return event;
+
+ fail:
+ do_cleanups (cleanups);
+ return NULL;
+}
+
+/* Construct a gdb.MemoryChangedEvent describing the extent of the
+ affected memory. */
+
+static PyObject *
+create_memory_changed_event_object (CORE_ADDR addr, ssize_t len)
+{
+ PyObject *event;
+ PyObject *addr_obj = NULL;
+ PyObject *len_obj = NULL;
+ int failed;
+ struct cleanup *cleanups;
+ struct cleanup *member_cleanups;
+
+ event = create_event_object (&memory_changed_event_object_type);
+
+ if (event == NULL)
+ return NULL;
+ cleanups = make_cleanup_py_decref (event);
+
+ addr_obj = PyLong_FromLongLong (addr);
+ if (addr_obj == NULL)
+ goto fail;
+ member_cleanups = make_cleanup_py_decref (addr_obj);
+
+ failed = evpy_add_attribute (event, "address", addr_obj) < 0;
+ if (failed)
+ goto fail;
+
+ len_obj = PyLong_FromLong (len);
+ if (len_obj == NULL)
+ goto fail;
+ make_cleanup_py_decref (len_obj);
+
+ failed = evpy_add_attribute (event, "length", len_obj) < 0;
+ if (failed)
+ goto fail;
+
+ do_cleanups (member_cleanups);
+ discard_cleanups (cleanups);
+ return event;
+
+ fail:
+ do_cleanups (cleanups);
+ return NULL;
+}
+
+/* Callback function which notifies observers when an event occurs which
+ calls a function in the inferior.
+ This function will create a new Python inferior-call event object.
+ Return -1 if emit fails. */
+
+int
+emit_inferior_call_event (inferior_call_kind flag, ptid_t thread,
+ CORE_ADDR addr)
+{
+ PyObject *event;
+
+ if (evregpy_no_listeners_p (gdb_py_events.inferior_call))
+ return 0;
+
+ event = create_inferior_call_event_object (flag, thread, addr);
+ if (event != NULL)
+ return evpy_emit_event (event, gdb_py_events.inferior_call);
+ return -1;
+}
+
+/* Callback when memory is modified by the user. This function will
+ create a new Python memory changed event object. */
+
+int
+emit_memory_changed_event (CORE_ADDR addr, ssize_t len)
+{
+ PyObject *event;
+
+ if (evregpy_no_listeners_p (gdb_py_events.memory_changed))
+ return 0;
+
+ event = create_memory_changed_event_object (addr, len);
+ if (event != NULL)
+ return evpy_emit_event (event, gdb_py_events.memory_changed);
+ return -1;
+}
+
+/* Callback when a register is modified by the user. This function
+ will create a new Python register changed event object. */
+
+int
+emit_register_changed_event (struct frame_info* frame, int regnum)
+{
+ PyObject *event;
+
+ if (evregpy_no_listeners_p (gdb_py_events.register_changed))
+ return 0;
+
+ event = create_register_changed_event_object (frame, regnum);
+ if (event != NULL)
+ return evpy_emit_event (event, gdb_py_events.register_changed);
+ return -1;
+}
+
+
+GDBPY_NEW_EVENT_TYPE (inferior_call_pre,
+ "gdb.InferiorCallPreEvent",
+ "InferiorCallPreEvent",
+ "GDB inferior function pre-call event object",
+ event_object_type,
+ static);
+
+GDBPY_NEW_EVENT_TYPE (inferior_call_post,
+ "gdb.InferiorCallPostEvent",
+ "InferiorCallPostEvent",
+ "GDB inferior function post-call event object",
+ event_object_type,
+ static);
+
+GDBPY_NEW_EVENT_TYPE (register_changed,
+ "gdb.RegisterChangedEvent",
+ "RegisterChangedEvent",
+ "GDB register change event object",
+ event_object_type,
+ static);
+
+GDBPY_NEW_EVENT_TYPE (memory_changed,
+ "gdb.MemoryChangedEvent",
+ "MemoryChangedEvent",
+ "GDB memory change event object",
+ event_object_type,
+ static);
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 ().
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. */
const char *encoding,
struct type *type);
PyObject *gdbpy_inferiors (PyObject *unused, PyObject *unused2);
+PyObject *gdbpy_create_ptid_object (ptid_t ptid);
PyObject *gdbpy_selected_thread (PyObject *self, PyObject *args);
PyObject *gdbpy_selected_inferior (PyObject *self, PyObject *args);
PyObject *gdbpy_string_to_argv (PyObject *self, PyObject *args);
CPYCHECKER_NEGATIVE_RESULT_SETS_EXCEPTION;
int gdbpy_initialize_continue_event (void)
CPYCHECKER_NEGATIVE_RESULT_SETS_EXCEPTION;
+int gdbpy_initialize_inferior_call_pre_event (void)
+ CPYCHECKER_NEGATIVE_RESULT_SETS_EXCEPTION;
+int gdbpy_initialize_inferior_call_post_event (void)
+ CPYCHECKER_NEGATIVE_RESULT_SETS_EXCEPTION;
+int gdbpy_initialize_register_changed_event (void)
+ CPYCHECKER_NEGATIVE_RESULT_SETS_EXCEPTION;
+int gdbpy_initialize_memory_changed_event (void)
+ CPYCHECKER_NEGATIVE_RESULT_SETS_EXCEPTION;
int gdbpy_initialize_exited_event (void)
CPYCHECKER_NEGATIVE_RESULT_SETS_EXCEPTION;
int gdbpy_initialize_thread_event (void)
|| gdbpy_initialize_signal_event () < 0
|| gdbpy_initialize_breakpoint_event () < 0
|| gdbpy_initialize_continue_event () < 0
+ || gdbpy_initialize_inferior_call_pre_event () < 0
+ || gdbpy_initialize_inferior_call_post_event () < 0
+ || gdbpy_initialize_register_changed_event () < 0
+ || gdbpy_initialize_memory_changed_event () < 0
|| gdbpy_initialize_exited_event () < 0
|| gdbpy_initialize_thread_event () < 0
|| gdbpy_initialize_new_objfile_event () < 0
+2014-12-02 Nick Bull <nicholaspbull@gmail.com>
+
+ * 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.
+
2014-12-02 Andreas Arnez <arnez@linux.vnet.ibm.com>
* gdb.base/execl-update-breakpoints.exp: Specify the link address
delete_breakpoints
+# Test inferior call events
+
+gdb_test_multiple "info threads" "get current thread" {
+ -re "\[^\n\r\]*process (\[0-9\]+)\[^\n\r\]*do_nothing.*$gdb_prompt $" {
+ set process_id $expect_out(1,string)
+ pass "get current thread"
+ }
+}
+
+gdb_test_multiple "print do_nothing" "get address of do_nothing" {
+ -re "\[^\n\r\]*(0x\[0-9a-f\]+) \<do_nothing\>.*$gdb_prompt $" {
+ set addr $expect_out(1,string)
+ pass "get address of do_nothing"
+ }
+}
+
+set expected [list "event type: pre-call"]
+lappend expected "ptid: \\($process_id, $process_id, 0\\)" "address: $addr"
+lappend expected "event type: post-call"
+lappend expected "ptid: \\($process_id, $process_id, 0\\)" "address: $addr"
+gdb_test_sequence "call do_nothing()" "" $expected
+
+# Test register changed event
+gdb_test_no_output {set $old_sp = $sp}
+gdb_test_sequence {set $sp = 0} "" {
+ "event type: register-changed"
+ "frame: "
+ "num: "
+}
+gdb_test_sequence {set $sp = 1} "" {
+ "event type: register-changed"
+ "frame: "
+ "num: "
+}
+gdb_test_sequence {set $sp = $old_sp} "" {
+ "event type: register-changed"
+ "frame: "
+ "num: "
+}
+
+# Test that no register_changed event is generated on "non-user"
+# modifications
+set test "up"
+gdb_test_multiple {up} $test {
+ -re "event type: register-changed.*\r\n$gdb_prompt $" {
+ fail $test
+ }
+ -re "#1.*in first.*\r\n.*do_nothing.*\r\n$gdb_prompt $" {
+ pass $test
+ }
+}
+
+set test "down"
+gdb_test_multiple {down} $test {
+ -re "event type: register-changed.*\r\n$gdb_prompt $" {
+ fail $test
+ }
+ -re "#0.*do_nothing.* at .*\r\n.*void do_nothing.*\r\n$gdb_prompt $" {
+ pass $test
+ }
+}
+
+set test "step"
+# Note: This will step the inferior out of do_nothing and back into first.
+gdb_test_multiple {step} $test {
+ -re "event type: register-changed.*\r\n$gdb_prompt $" {
+ fail $test
+ }
+ -re "first.* at .*\r\n$gdb_prompt $" {
+ pass $test
+ }
+}
+
+# Test memory changed event
+gdb_test_no_output {set $saved = *(int*) $sp}
+gdb_test_sequence {set *(int*) $sp = 0} "" {
+ "event type: memory-changed"
+ "address: "
+ "length: "
+}
+gdb_test_sequence {set *(int*) $sp = $saved} "" {
+ "event type: memory-changed"
+ "address: "
+ "length: "
+}
+
+# Test that no memory_changed event is generated on breakpoint
+# activity
+set test "break second"
+gdb_test_multiple "break second" $test {
+ -re "event type: memory-changed" {
+ fail $test
+ }
+ -re "Breakpoint (\[0-9\]+) at .*\r\n$gdb_prompt $" {
+ set second_breakpoint $expect_out(1,string)
+ pass $test
+ }
+
+}
+
+set test "continue to breakpoint $second_breakpoint"
+set expected ".*event type: continue.*\r\n"
+append expected ".*event type: stop.*\r\n"
+append expected ".*stop reason: breakpoint.*\r\n"
+append expected ".*all threads stopped.*\r\n$gdb_prompt $"
+
+gdb_test_multiple "continue" $test {
+ -re "event type: memory-changed.*\r\n$gdb_prompt $" {
+ fail $test
+ }
+ -re $expected {
+ pass $test
+ }
+}
+
+gdb_test_no_output "delete $second_breakpoint"
+
#test exited event.
gdb_test "continue" ".*event type: continue.*
.*clear_objfiles\[\r\n\]*progspace: .*py-events.*
print ("event type: clear_objfiles")
print ("progspace: %s" % (event.progspace.filename))
+def inferior_call_handler (event):
+ if (isinstance (event, gdb.InferiorCallPreEvent)):
+ print ("event type: pre-call")
+ elif (isinstance (event, gdb.InferiorCallPostEvent)):
+ print ("event type: post-call")
+ else:
+ assert False
+ print ("ptid: %s" % (event.ptid,))
+ print ("address: 0x%x" % (event.address))
+
+def register_changed_handler (event):
+ assert (isinstance (event, gdb.RegisterChangedEvent))
+ print ("event type: register-changed")
+ assert (isinstance (event.frame, gdb.Frame))
+ print ("frame: %s" % (event.frame))
+ print ("num: %s" % (event.regnum))
+
+def memory_changed_handler (event):
+ assert (isinstance (event, gdb.MemoryChangedEvent))
+ print ("event type: memory-changed")
+ print ("address: %s" % (event.address))
+ print ("length: %s" % (event.length))
+
+
class test_events (gdb.Command):
"""Test events."""
gdb.events.stop.connect (breakpoint_stop_handler)
gdb.events.exited.connect (exit_handler)
gdb.events.cont.connect (continue_handler)
+ gdb.events.inferior_call.connect (inferior_call_handler)
+ gdb.events.memory_changed.connect (memory_changed_handler)
+ gdb.events.register_changed.connect (register_changed_handler)
print ("Event testers registered.")
test_events ()
}
}
+ observer_notify_register_changed (frame, value_reg);
if (deprecated_register_changed_hook)
deprecated_register_changed_hook (-1);
break;
projects / platform / upstream / binutils.git / commitdiff