1# Copyright 2008-2019 Free Software Foundation, Inc. 2 3# This program is free software; you can redistribute it and/or modify 4# it under the terms of the GNU General Public License as published by 5# the Free Software Foundation; either version 3 of the License, or 6# (at your option) any later version. 7# 8# This program is distributed in the hope that it will be useful, 9# but WITHOUT ANY WARRANTY; without even the implied warranty of 10# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 11# GNU General Public License for more details. 12# 13# You should have received a copy of the GNU General Public License 14# along with this program. If not, see <http://www.gnu.org/licenses/>. 15load_lib dwarf.exp 16 17# This test can only be run on targets which support DWARF-2 and use gas. 18if {![dwarf2_support]} { 19 return 0 20} 21 22standard_testfile .S 23set srcfuncfile ${testfile}-func.c 24set srcmainfile ${testfile}-main.c 25set executable ${testfile} 26 27if {[prepare_for_testing_full "failed to prepare" \ 28 [list $testfile {} $srcfile {} $srcfuncfile {} \ 29 $srcmainfile debug]]} { 30 return -1 31} 32 33# First try referencing DW_AT_frame_base which is not defined. 34if [runto func_nofb] { 35 gdb_test "p func_nofb_var" {Could not find the frame base for "func_nofb".} "func_nofb print" 36 gdb_test "bt full" " in main .* main_var = 1" "func_nofb backtrace" 37} 38 39# GDB could have crashed. 40clean_restart $executable 41 42# And now try referencing DW_AT_frame_base defined using a self-reference 43# (DW_OP_fbreg). 44if [runto func_loopfb] { 45 gdb_test "p func_loopfb_var" "DWARF-2 expression error: Loop detected .*" "func_loopfb print" 46 gdb_test "bt full" " in main .* main_var = 1" "func_loopfb backtrace" 47} 48