gdb/testsuite/gdb.python/py-section-script.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.
  17
  18 import re
  19
  20
  21 class pp_ss:
  22     def __init__(self, val):
  23         self.val = val
  24
  25     def to_string(self):
  26         return "a=<" + str(self.val["a"]) + "> b=<" + str(self.val["b"]) + ">"
  27
  28
  29 def lookup_function(val):
  30     "Look-up and return a pretty-printer that can print val."
  31
  32     # Get the type.
  33     type = val.type
  34
  35     # If it points to a reference, get the reference.
  36     if type.code == gdb.TYPE_CODE_REF:
  37         type = type.target()
  38
  39     # Get the unqualified type, stripped of typedefs.
  40     type = type.unqualified().strip_typedefs()
  41
  42     # Get the type name.
  43     typename = type.tag
  44
  45     if typename is None:
  46         return None
  47
  48     # Iterate over local dictionary of types to determine
  49     # if a printer is registered for that type.  Return an
  50     # instantiation of the printer if found.
  51     for function in pretty_printers_dict:
  52         if function.match(typename):
  53             return pretty_printers_dict[function](val)
  54
  55     # Cannot find a pretty printer.  Return None.
  56
  57     return None
  58
  59
  60 def register_pretty_printers():
  61     pretty_printers_dict[re.compile("^ss$")] = pp_ss
  62
  63
  64 pretty_printers_dict = {}
  65
  66 register_pretty_printers()
  67 gdb.current_progspace().pretty_printers.append(lookup_function)