| # Copyright (C) 2018-2021 Free Software Foundation, Inc. |
| |
| # This program is free software; you can redistribute it and/or modify |
| # it under the terms of the GNU General Public License as published by |
| # the Free Software Foundation; either version 3 of the License, or |
| # (at your option) any later version. |
| # |
| # This program is distributed in the hope that it will be useful, |
| # but WITHOUT ANY WARRANTY; without even the implied warranty of |
| # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| # GNU General Public License for more details. |
| # |
| # You should have received a copy of the GNU General Public License |
| # along with this program. If not, see <http://www.gnu.org/licenses/>. |
| |
| import sys |
| import gdb |
| import gdb.types |
| |
| # Following is for Python 3 compatibility... |
| if sys.version_info[0] > 2: |
| long = int |
| |
| |
| class cons_pp(object): |
| def __init__(self, val): |
| self._val = val |
| |
| def to_string(self): |
| if long(self._val) == 0: |
| return "nil" |
| elif long(self._val["type"]) == 0: |
| return "( . )" |
| else: |
| return "%d" % self._val["atom"]["ival"] |
| |
| def children(self): |
| if long(self._val) == 0: |
| return [] |
| elif long(self._val["type"]) == 0: |
| return [("atom", self._val["atom"])] |
| else: |
| return [ |
| ("car", self._val["slots"][0]), |
| ("cdr", self._val["slots"][1]), |
| ] |
| |
| |
| def cons_pp_lookup(val): |
| if str(val.type) == "struct cons *": |
| return cons_pp(val) |
| else: |
| return None |
| |
| |
| del gdb.pretty_printers[1:] |
| gdb.pretty_printers.append(cons_pp_lookup) |
