mirror of
https://sourceware.org/git/binutils-gdb.git
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136 lines
4.0 KiB
Python
136 lines
4.0 KiB
Python
# Copyright (C) 2019-2020 Free Software Foundation, Inc.
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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# This file is part of the GDB testsuite. It tests GDB's printing of
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# nested map like structures.
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import re
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import gdb
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def _iterator1 (pointer, len):
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while len > 0:
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map = pointer.dereference()
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yield ('', map['name'])
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yield ('', map.dereference())
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pointer += 1
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len -= 1
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def _iterator2 (pointer1, pointer2, len):
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while len > 0:
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yield ("", pointer1.dereference())
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yield ("", pointer2.dereference())
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pointer1 += 1
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pointer2 += 1
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len -= 1
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class pp_map (object):
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def __init__(self, val):
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self.val = val
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def to_string(self):
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if (self.val['show_header'] == 0):
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return None
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else:
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return "pp_map"
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def children(self):
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return _iterator2(self.val['keys'],
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self.val['values'],
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self.val['length'])
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def display_hint (self):
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return 'map'
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class pp_map_map (object):
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def __init__(self, val):
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self.val = val
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def to_string(self):
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if (self.val['show_header'] == 0):
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return None
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else:
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return "pp_map_map"
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def children(self):
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return _iterator1(self.val['values'],
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self.val['length'])
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def display_hint (self):
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return 'map'
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def lookup_function (val):
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"Look-up and return a pretty-printer that can print val."
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# Get the type.
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type = val.type
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# If it points to a reference, get the reference.
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if type.code == gdb.TYPE_CODE_REF:
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type = type.target ()
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# Get the unqualified type, stripped of typedefs.
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type = type.unqualified ().strip_typedefs ()
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# Get the type name.
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typename = type.tag
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if typename == None:
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return None
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# Iterate over local dictionary of types to determine
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# if a printer is registered for that type. Return an
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# instantiation of the printer if found.
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for function in pretty_printers_dict:
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if function.match (typename):
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return pretty_printers_dict[function] (val)
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# Cannot find a pretty printer. Return None.
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return None
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# Lookup a printer for VAL in the typedefs dict.
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def lookup_typedefs_function (val):
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"Look-up and return a pretty-printer that can print val (typedefs)."
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# Get the type.
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type = val.type
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if type == None or type.name == None or type.code != gdb.TYPE_CODE_TYPEDEF:
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return None
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# Iterate over local dictionary of typedef types to determine if a
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# printer is registered for that type. Return an instantiation of
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# the printer if found.
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for function in typedefs_pretty_printers_dict:
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if function.match (type.name):
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return typedefs_pretty_printers_dict[function] (val)
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# Cannot find a pretty printer.
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return None
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def register_pretty_printers ():
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pretty_printers_dict[re.compile ('^struct map_t$')] = pp_map
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pretty_printers_dict[re.compile ('^map_t$')] = pp_map
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pretty_printers_dict[re.compile ('^struct map_map_t$')] = pp_map_map
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pretty_printers_dict[re.compile ('^map_map_t$')] = pp_map_map
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# Dict for struct types with typedefs fully stripped.
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pretty_printers_dict = {}
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# Dict for typedef types.
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typedefs_pretty_printers_dict = {}
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register_pretty_printers ()
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gdb.pretty_printers.append (lookup_function)
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gdb.pretty_printers.append (lookup_typedefs_function)
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