gdb/testsuite/gdb.python/py-events.py

   1 # Copyright (C) 2010-2023 Free Software Foundation, Inc.
   2
   3 # This program is free software; you can redistribute it and/or modify
   4 # it under the terms of the GNU General Public License as published by
   5 # the Free Software Foundation; either version 3 of the License, or
   6 # (at your option) any later version.
   7 #
   8 # This program is distributed in the hope that it will be useful,
   9 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  10 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11 # GNU General Public License for more details.
  12 #
  13 # You should have received a copy of the GNU General Public License
  14 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  15
  16 # This file is part of the GDB testsuite.  It tests python pretty
  17 # printers.
  18 import gdb
  19
  20
  21 def signal_stop_handler(event):
  22     if isinstance(event, gdb.StopEvent):
  23         print("event type: stop")
  24     if isinstance(event, gdb.SignalEvent):
  25         print("stop reason: signal")
  26         print("stop signal: %s" % (event.stop_signal))
  27         if event.inferior_thread is not None:
  28             print("thread num: %s" % (event.inferior_thread.num))
  29
  30
  31 def breakpoint_stop_handler(event):
  32     if isinstance(event, gdb.StopEvent):
  33         print("event type: stop")
  34     if isinstance(event, gdb.BreakpointEvent):
  35         print("stop reason: breakpoint")
  36         print("first breakpoint number: %s" % (event.breakpoint.number))
  37         for bp in event.breakpoints:
  38             print("breakpoint number: %s" % (bp.number))
  39         if event.inferior_thread is not None:
  40             print("thread num: %s" % (event.inferior_thread.num))
  41         else:
  42             print("all threads stopped")
  43
  44
  45 def exit_handler(event):
  46     assert isinstance(event, gdb.ExitedEvent)
  47     print("event type: exit")
  48     if hasattr(event, "exit_code"):
  49         print("exit code: %d" % (event.exit_code))
  50     else:
  51         print("exit code: not-present")
  52     print("exit inf: %d" % (event.inferior.num))
  53     print("exit pid: %d" % (event.inferior.pid))
  54     print("dir ok: %s" % str("exit_code" in dir(event)))
  55
  56
  57 def continue_handler(event):
  58     assert isinstance(event, gdb.ContinueEvent)
  59     print("event type: continue")
  60     if event.inferior_thread is not None:
  61         print("thread num: %s" % (event.inferior_thread.num))
  62
  63
  64 def new_objfile_handler(event):
  65     assert isinstance(event, gdb.NewObjFileEvent)
  66     print("event type: new_objfile")
  67     print("new objfile name: %s" % (event.new_objfile.filename))
  68
  69
  70 def clear_objfiles_handler(event):
  71     assert isinstance(event, gdb.ClearObjFilesEvent)
  72     print("event type: clear_objfiles")
  73     print("progspace: %s" % (event.progspace.filename))
  74
  75
  76 def inferior_call_handler(event):
  77     if isinstance(event, gdb.InferiorCallPreEvent):
  78         print("event type: pre-call")
  79     elif isinstance(event, gdb.InferiorCallPostEvent):
  80         print("event type: post-call")
  81     else:
  82         assert False
  83     print("ptid: %s" % (event.ptid,))
  84     print("address: 0x%x" % (event.address))
  85
  86
  87 def register_changed_handler(event):
  88     assert isinstance(event, gdb.RegisterChangedEvent)
  89     print("event type: register-changed")
  90     assert isinstance(event.frame, gdb.Frame)
  91     print("frame: %s" % (event.frame))
  92     print("num: %s" % (event.regnum))
  93
  94
  95 def memory_changed_handler(event):
  96     assert isinstance(event, gdb.MemoryChangedEvent)
  97     print("event type: memory-changed")
  98     print("address: %s" % (event.address))
  99     print("length: %s" % (event.length))
 100
 101
 102 class test_events(gdb.Command):
 103     """Test events."""
 104
 105     def __init__(self):
 106         gdb.Command.__init__(self, "test-events", gdb.COMMAND_STACK)
 107
 108     def invoke(self, arg, from_tty):
 109         gdb.events.stop.connect(signal_stop_handler)
 110         gdb.events.stop.connect(breakpoint_stop_handler)
 111         gdb.events.exited.connect(exit_handler)
 112         gdb.events.cont.connect(continue_handler)
 113         gdb.events.inferior_call.connect(inferior_call_handler)
 114         gdb.events.memory_changed.connect(memory_changed_handler)
 115         gdb.events.register_changed.connect(register_changed_handler)
 116         print("Event testers registered.")
 117
 118
 119 test_events()
 120
 121
 122 class test_newobj_events(gdb.Command):
 123     """NewObj events."""
 124
 125     def __init__(self):
 126         gdb.Command.__init__(self, "test-objfile-events", gdb.COMMAND_STACK)
 127
 128     def invoke(self, arg, from_tty):
 129         gdb.events.new_objfile.connect(new_objfile_handler)
 130         gdb.events.clear_objfiles.connect(clear_objfiles_handler)
 131         print("Object file events registered.")
 132
 133
 134 test_newobj_events()
 135
 136
 137 def gdb_exiting_handler(event, throw_error):
 138     assert isinstance(event, gdb.GdbExitingEvent)
 139     if throw_error:
 140         raise gdb.GdbError("error from gdb_exiting_handler")
 141     else:
 142         print("event type: gdb-exiting")
 143         print("exit code: %d" % (event.exit_code))
 144
 145
 146 class test_exiting_event(gdb.Command):
 147     """GDB Exiting event."""
 148
 149     def __init__(self):
 150         gdb.Command.__init__(self, "test-exiting-event", gdb.COMMAND_STACK)
 151
 152     def invoke(self, arg, from_tty):
 153         if arg == "normal":
 154             gdb.events.gdb_exiting.connect(lambda e: gdb_exiting_handler(e, False))
 155         elif arg == "error":
 156             gdb.events.gdb_exiting.connect(lambda e: gdb_exiting_handler(e, True))
 157         else:
 158             raise gdb.GdbError("invalid or missing argument")
 159         print("GDB exiting event registered.")
 160
 161
 162 test_exiting_event()