1 # Copyright 2015-2020 Free Software Foundation, Inc.
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.
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.
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/>.
17 # Test GDB does not internal error on DWARF register number -1 which is invalid
18 # in DWARF. clang-3.5.0-9.fc22.x86_64 produced it inside DW_AT_location.
20 # This test can only be run on targets which support DWARF-2 and use gas.
21 if {![dwarf2_support]} {
25 standard_testfile .S main.c
27 # Make some DWARF for the test.
28 set asm_file [standard_output_file $srcfile]
29 Dwarf::assemble $asm_file {
32 {low_pc [gdb_target_symbol main] DW_FORM_addr}
33 {high_pc [gdb_target_symbol main]+0x10000 DW_FORM_addr}
35 declare_labels integer_label
37 integer_label: DW_TAG_base_type {
38 {DW_AT_byte_size 4 DW_FORM_sdata}
39 {DW_AT_encoding @DW_ATE_signed}
45 {DW_AT_external 1 flag}
46 {low_pc [gdb_target_symbol main] DW_FORM_addr}
47 {high_pc [gdb_target_symbol main]+0x10000 DW_FORM_addr}
51 {DW_AT_type :$integer_label}
52 {DW_AT_external 1 flag}
54 DW_OP_bregx 0xffffffff 0
62 if { [prepare_for_testing "failed to prepare" ${testfile} \
63 [list $srcfile2 $asm_file] {nodebug}] } {
69 # Variable 'bregx' needs to be inside main as for global symbols GDB does not
70 # support non-trivial DW_AT_location. Former GDB printed internal error here.