22869d73e1
Install some sanity checks that sibling DIE offsets are not beyond the defined limits of the DWARF input buffer in read_partial_die and skip_one_die. 2014-03-20 Keith Seitz <keiths@redhat.com> PR gdb/15827 * dwarf2read.c (skip_one_die): Check that all relative-offset sibling DIEs fall within range of the current reader's buffer. (read_partial_die): Likewise. 2014-03-20 Keith Seitz <keiths@redhat.com> PR gdb/15827 * gdb.dwarf2/corrupt.c: New file. * gdb.dwarf2/corrupt.exp: New file.
77 lines
1.8 KiB
Text
77 lines
1.8 KiB
Text
# Copyright 2014 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/>.
|
|
|
|
# Test corrupt DWARF input
|
|
# PR gdb/15827
|
|
|
|
load_lib dwarf.exp
|
|
|
|
if {![dwarf2_support]} {
|
|
return 0
|
|
}
|
|
|
|
standard_testfile corrupt.c corrupt.S
|
|
|
|
# Make the DWARF used for the test.
|
|
#
|
|
# Here we put DW_AT_sibling DIEs into the output which
|
|
# point off into la-la land. The whole purpose is to simulate
|
|
# corrupt DWARF information and make sure that GDB can handle it
|
|
# without crashing.
|
|
|
|
set asm_file [standard_output_file $srcfile2]
|
|
Dwarf::assemble $asm_file {
|
|
cu {} {
|
|
compile_unit {} {
|
|
declare_labels int_label
|
|
|
|
int_label: base_type {
|
|
{byte_size 4}
|
|
{name "int"}
|
|
}
|
|
|
|
enumeration_type {
|
|
{name "ENUM"}
|
|
{byte_size 4}
|
|
} {
|
|
enumerator {
|
|
{name "A"}
|
|
{const_value 0}
|
|
}
|
|
enumerator {
|
|
{name "B"}
|
|
{const_value 1}
|
|
{sibling 12345678 DW_FORM_ref4}
|
|
} {
|
|
base_type {
|
|
{byte_size 1}
|
|
{name "char"}
|
|
}
|
|
}
|
|
array_type {
|
|
{type :$int_label}
|
|
{sibling 12345678 DW_FORM_ref4}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if {[prepare_for_testing $testfile.exp $testfile \
|
|
[list $srcfile $asm_file] {nodebug}]} {
|
|
return -1
|
|
}
|
|
|
|
gdb_test "print 1" "= 1" "recover from corrupt DWARF"
|