69b4374a87
gdb/ChangeLog: PR python/18089 * python/py-prettyprint.c (print_children): Verify result of children iterator. Provide better error message. * python/python-internal..h (gdbpy_print_python_errors_p): Declare. * python/python.c (gdbpy_print_python_errors_p): New function. gdb/testsuite/ChangeLog: * gdb.python/py-bad-printers.c: New file. * gdb.python/py-bad-printers.py: New file. * gdb.python/py-bad-printers.exp: New file.
80 lines
2.5 KiB
Python
80 lines
2.5 KiB
Python
# Copyright (C) 2008-2015 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/>.
|
|
|
|
# This file is part of the GDB testsuite. It tests GDB's handling of
|
|
# bad python pretty printers.
|
|
|
|
# Test a printer with a bad children iterator.
|
|
|
|
import re
|
|
import gdb.printing
|
|
|
|
|
|
class BadChildrenContainerPrinter1(object):
|
|
"""Children iterator doesn't return a tuple of two elements."""
|
|
|
|
def __init__(self, val):
|
|
self.val = val
|
|
|
|
def to_string(self):
|
|
return 'container %s with %d elements' % (self.val['name'], self.val['len'])
|
|
|
|
@staticmethod
|
|
def _bad_iterator(pointer, len):
|
|
start = pointer
|
|
end = pointer + len
|
|
while pointer != end:
|
|
yield 'intentional violation of children iterator protocol'
|
|
pointer += 1
|
|
|
|
def children(self):
|
|
return self._bad_iterator(self.val['elements'], self.val['len'])
|
|
|
|
|
|
class BadChildrenContainerPrinter2(object):
|
|
"""Children iterator returns a tuple of two elements with bad values."""
|
|
|
|
def __init__(self, val):
|
|
self.val = val
|
|
|
|
def to_string(self):
|
|
return 'container %s with %d elements' % (self.val['name'], self.val['len'])
|
|
|
|
@staticmethod
|
|
def _bad_iterator(pointer, len):
|
|
start = pointer
|
|
end = pointer + len
|
|
while pointer != end:
|
|
# The first argument is supposed to be a string.
|
|
yield (42, 'intentional violation of children iterator protocol')
|
|
pointer += 1
|
|
|
|
def children(self):
|
|
return self._bad_iterator(self.val['elements'], self.val['len'])
|
|
|
|
|
|
def build_pretty_printer():
|
|
pp = gdb.printing.RegexpCollectionPrettyPrinter("bad-printers")
|
|
|
|
pp.add_printer('container1', '^container$',
|
|
BadChildrenContainerPrinter1)
|
|
pp.add_printer('container2', '^container$',
|
|
BadChildrenContainerPrinter2)
|
|
|
|
return pp
|
|
|
|
|
|
my_pretty_printer = build_pretty_printer()
|
|
gdb.printing.register_pretty_printer(gdb, my_pretty_printer)
|