gdb/testsuite/gdb.python/py-framefilter-invalidarg.py

   1 # Copyright (C) 2014-2022 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-based
  17 # frame-filters.
  18 import gdb
  19 import itertools
  20 from gdb.FrameDecorator import FrameDecorator
  21 import copy
  22
  23
  24 class Reverse_Function(FrameDecorator):
  25     def __init__(self, fobj):
  26         super(Reverse_Function, self).__init__(fobj)
  27         self.fobj = fobj
  28
  29     def function(self):
  30         fname = str(self.fobj.function())
  31         if not fname:
  32             return None
  33         if fname == "end_func":
  34             extra = self.fobj.inferior_frame().read_var("str").string()
  35         else:
  36             extra = ""
  37         fname = fname[::-1] + extra
  38         return fname
  39
  40
  41 class FrameFilter:
  42     def __init__(self):
  43         self.name = "Reverse"
  44         self.priority = 100
  45         self.enabled = True
  46         gdb.frame_filters[self.name] = self
  47
  48     def filter(self, frame_iter):
  49         # Python 3.x moved the itertools.imap functionality to map(),
  50         # so check if it is available.
  51         if hasattr(itertools, "imap"):
  52             frame_iter = itertools.imap(Reverse_Function, frame_iter)
  53         else:
  54             frame_iter = map(Reverse_Function, frame_iter)
  55
  56         return frame_iter
  57
  58
  59 FrameFilter()