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# Copyright 2024-2025 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/>.
# Check that GDB doesn't crash on invalid dwarf, specifically an inter-CU
# reference pointing to a dummy CU.
load_lib dwarf.exp
# This test can only be run on targets which support DWARF-2 and use gas.
require dwarf2_support
standard_testfile main.c .S
# Create the DWARF.
set asm_file [standard_output_file $srcfile2]
Dwarf::assemble $asm_file {
declare_labels label1
cu {} {
compile_unit {{language @DW_LANG_C}} {
subprogram {
{MACRO_AT_range { main }}
{DW_AT_specification %$label1}
}
}
}
label1: cu {} {
}
}
if [build_executable "failed to prepare" $testfile \
[list $asm_file $srcfile] {nodebug}] {
return -1
}
clean_restart
gdb_test_no_output "maint set dwarf synchronous on"
gdb_load $binfile
gdb_assert \
{ [regexp "DWARF Error: cannot follow reference" $gdb_file_cmd_msg] } \
"Error message"
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