1# Copyright (C) 2013-2023 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 16import re 17import gdb 18 19 20class pp_s(object): 21 def __init__(self, val): 22 self.val = val 23 24 def to_string(self): 25 m = self.val["m"] 26 return "m=<" + str(self.val["m"]) + ">" 27 28 29class pp_ss(object): 30 def __init__(self, val): 31 self.val = val 32 33 def to_string(self): 34 return "super struct" 35 36 def children(self): 37 yield "a", self.val["a"] 38 yield "b", self.val["b"] 39 40 41def lookup_function(val): 42 "Look-up and return a pretty-printer that can print val." 43 44 # Get the type. 45 type = val.type 46 47 # If it points to a reference, get the reference. 48 if type.code == gdb.TYPE_CODE_REF: 49 type = type.target() 50 51 # Get the unqualified type, stripped of typedefs. 52 type = type.unqualified().strip_typedefs() 53 54 # Get the type name. 55 typename = type.tag 56 if typename is None: 57 return None 58 59 # Iterate over local dictionary of types to determine 60 # if a printer is registered for that type. Return an 61 # instantiation of the printer if found. 62 for function in pretty_printers_dict: 63 if function.match(typename): 64 return pretty_printers_dict[function](val) 65 66 # Cannot find a pretty printer. Return None. 67 return None 68 69 70def register_pretty_printers(): 71 pretty_printers_dict[re.compile("^s$")] = pp_s 72 pretty_printers_dict[re.compile("^ss$")] = pp_ss 73 74 75pretty_printers_dict = {} 76 77register_pretty_printers() 78gdb.pretty_printers.append(lookup_function) 79