gdb/testsuite/gdb.server/stripped-pie.exp

# Copyright 2017 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/>.

# PR 21126
# strip may completely nullify the PT_GNU_RELRO segment header.
# Seeing this bug requires exec_bfd to be from the non-stripped binary,
# with the in-memory image being from the stripped binary. And it seems
# to require clang-built executables, not sure what the difference is that
# triggers the complete nullification.

load_lib gdbserver-support.exp

standard_testfile server.c

if { [skip_gdbserver_tests] } {
    return 0
}

if {[prepare_for_testing "failed to prepare" $testfile $srcfile {debug additional_flags=-fpie "ldflags=-pie -Wl,-z,relro"}]} {
    return -1
}

set stripped_binfile ${binfile}.stripped

set strip_program [transform strip]
remote_file host delete ${stripped_binfile}
if [run_on_host "strip" "$strip_program" "-g -o ${stripped_binfile} $binfile"] {
    return -1
}

clean_restart ${binfile}

# Make sure we're disconnected, in case we're testing with an
# extended-remote board, therefore already connected.
gdb_test "disconnect" ".*"

set remote_binfile [gdb_remote_download target $stripped_binfile]
gdbserver_start_extended

gdb_test_no_output "set remote exec-file $remote_binfile" "set remote exec-file"

# If we can run to main, we're good.
runto main message