blob: 1d6d7d65335682b4ee266661a797f5ffff4d706a [file] [log] [blame]
# Copyright 2015-2021 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
# 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 <>.
load_lib dwarf.exp
# Test GDB does not internal error on DWARF register number -1 which is invalid
# in DWARF. clang-3.5.0-9.fc22.x86_64 produced it inside DW_AT_location.
# This test can only be run on targets which support DWARF-2 and use gas.
if {![dwarf2_support]} {
return 0
standard_testfile main.c .S
# Make some DWARF for the test.
set asm_file [standard_output_file $srcfile2]
Dwarf::assemble $asm_file {
cu {} {
compile_unit {
{MACRO_AT_range {main}}
} {
declare_labels integer_label
integer_label: DW_TAG_base_type {
{DW_AT_byte_size 4 DW_FORM_sdata}
{DW_AT_encoding @DW_ATE_signed}
{DW_AT_name integer}
DW_TAG_subprogram {
{DW_AT_external 1 flag}
{MACRO_AT_func {main}}
} {
DW_TAG_variable {
{DW_AT_name bregx}
{DW_AT_type :$integer_label}
{DW_AT_external 1 flag}
{DW_AT_location {
DW_OP_bregx 0xffffffff 0
} SPECIAL_expr}
if { [prepare_for_testing "failed to prepare" ${testfile} \
[list $srcfile $asm_file] {nodebug}] } {
return -1
# Variable 'bregx' needs to be inside main as for global symbols GDB does not
# support non-trivial DW_AT_location. Former GDB printed internal error here.
gdb_test "p bregx"