gdb/testsuite/gdb.python/py-unwind-maint.py

   1 # Copyright (C) 2015-2020 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 unwinders.
  17
  18 import re
  19 import gdb.types
  20 from gdb.unwinder import Unwinder, register_unwinder
  21
  22 class TestGlobalUnwinder(Unwinder):
  23     def __init__(self):
  24         super(TestGlobalUnwinder, self).__init__("global_unwinder")
  25
  26     def __call__(self, unwinder_info):
  27         print("%s called" % self.name)
  28         return None
  29
  30 class TestProgspaceUnwinder(Unwinder):
  31     def __init__(self, name):
  32         super(TestProgspaceUnwinder, self).__init__("%s_ps_unwinder" % name)
  33
  34     def __call__(self, unwinder_info):
  35         print("%s called" % self.name)
  36         return None
  37
  38 class TestObjfileUnwinder(Unwinder):
  39     def __init__(self, name):
  40         super(TestObjfileUnwinder, self).__init__("%s_obj_unwinder" % name)
  41
  42     def __call__(self, unwinder_info):
  43         print("%s called" % self.name)
  44         return None
  45
  46
  47
  48 gdb.unwinder.register_unwinder(None, TestGlobalUnwinder())
  49 saw_runtime_error = False
  50 try:
  51     gdb.unwinder.register_unwinder(None, TestGlobalUnwinder(), replace=False)
  52 except RuntimeError:
  53     saw_runtime_error = True
  54 if not saw_runtime_error:
  55     raise RuntimeError("Missing runtime error from register_unwinder.")
  56 gdb.unwinder.register_unwinder(None, TestGlobalUnwinder(), replace=True)
  57 gdb.unwinder.register_unwinder(gdb.current_progspace(),
  58                                TestProgspaceUnwinder("py_unwind_maint"))
  59 print("Python script imported")