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# Copyright (C) 2010-2023 Free Software Foundation, Inc.
# 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/>.
# This file is part of the GDB testsuite. It tests python pretty
# printers.
import gdb
def signal_stop_handler(event):
if isinstance(event, gdb.StopEvent):
print("event type: stop")
if isinstance(event, gdb.SignalEvent):
print("stop reason: signal")
print("stop signal: %s" % (event.stop_signal))
if event.inferior_thread is not None:
print("thread num: %s" % (event.inferior_thread.num))
def breakpoint_stop_handler(event):
if isinstance(event, gdb.StopEvent):
print("event type: stop")
if isinstance(event, gdb.BreakpointEvent):
print("stop reason: breakpoint")
print("first breakpoint number: %s" % (event.breakpoint.number))
for bp in event.breakpoints:
print("breakpoint number: %s" % (bp.number))
if event.inferior_thread is not None:
print("thread num: %s" % (event.inferior_thread.num))
else:
print("all threads stopped")
def exit_handler(event):
assert isinstance(event, gdb.ExitedEvent)
print("event type: exit")
if hasattr(event, "exit_code"):
print("exit code: %d" % (event.exit_code))
else:
print("exit code: not-present")
print("exit inf: %d" % (event.inferior.num))
print("exit pid: %d" % (event.inferior.pid))
print("dir ok: %s" % str("exit_code" in dir(event)))
def continue_handler(event):
assert isinstance(event, gdb.ContinueEvent)
print("event type: continue")
if event.inferior_thread is not None:
print("thread num: %s" % (event.inferior_thread.num))
def new_objfile_handler(event):
assert isinstance(event, gdb.NewObjFileEvent)
print("event type: new_objfile")
print("new objfile name: %s" % (event.new_objfile.filename))
def clear_objfiles_handler(event):
assert isinstance(event, gdb.ClearObjFilesEvent)
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."""
def __init__(self):
gdb.Command.__init__(self, "test-events", gdb.COMMAND_STACK)
def invoke(self, arg, from_tty):
gdb.events.stop.connect(signal_stop_handler)
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()
class test_newobj_events(gdb.Command):
"""NewObj events."""
def __init__(self):
gdb.Command.__init__(self, "test-objfile-events", gdb.COMMAND_STACK)
def invoke(self, arg, from_tty):
gdb.events.new_objfile.connect(new_objfile_handler)
gdb.events.clear_objfiles.connect(clear_objfiles_handler)
print("Object file events registered.")
test_newobj_events()
def gdb_exiting_handler(event, throw_error):
assert isinstance(event, gdb.GdbExitingEvent)
if throw_error:
raise gdb.GdbError("error from gdb_exiting_handler")
else:
print("event type: gdb-exiting")
print("exit code: %d" % (event.exit_code))
class test_exiting_event(gdb.Command):
"""GDB Exiting event."""
def __init__(self):
gdb.Command.__init__(self, "test-exiting-event", gdb.COMMAND_STACK)
def invoke(self, arg, from_tty):
if arg == "normal":
gdb.events.gdb_exiting.connect(lambda e: gdb_exiting_handler(e, False))
elif arg == "error":
gdb.events.gdb_exiting.connect(lambda e: gdb_exiting_handler(e, True))
else:
raise gdb.GdbError("invalid or missing argument")
print("GDB exiting event registered.")
test_exiting_event()
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