gdb/testsuite/gdb.base/gcore-buffer-overflow.exp

# Copyright 2007-2021 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.
#
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# along with this program.  If not, see <http://www.gnu.org/licenses/>.

# Test GDB's internal buffers safety for the GCORE command.


standard_testfile .c
# The ${binfile} basename needs to exceed 80 characters (`sizeof (psargs)')
# plus some additional data to overwrite the stack frame.
set pattern  01234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789
append binfile -${pattern}

if  { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } {
     untested "failed to compile"
     return -1
}

# Start with a fresh gdb.

clean_restart ${binfile}

gdb_test_no_output "set args ${pattern}"	\
    "set buffer exceeding arguments"

if { ! [ runto_main ] } then {
    return -1
}

gdb_gcore_cmd [standard_output_file gcore-buffer-overflow.test] \
    "save a corefile"