# Copyright 2023-2024 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 hang or segfault on reading a DIE with a
# specification/abstract_origin reference to itself.

load_lib dwarf.exp

require dwarf2_support

standard_testfile main.c .S

# Create the DWARF.
set asm_file [standard_output_file $srcfile2]
Dwarf::assemble $asm_file {
    cu {} {
	compile_unit {{language @DW_LANG_C_plus_plus}} {
	    # Check handling of self-referencing DIE.
	    declare_labels c1
	    c1: class_type {
		{name c1}
		{specification :$c1}
	    }

	    # Check handling of self-referencing child DIE.  Regression test
	    # for PR30799.
	    declare_labels f1 abstract_f1 f1_l
	    abstract_f1: subprogram {}
	    f1: subprogram {
		{MACRO_AT_func {main}}
		{abstract_origin :$abstract_f1}
	    } {
		f1_l: label {
		    {abstract_origin :$f1_l}
		}
	    }
	}
    }
}

if [prepare_for_testing "failed to prepare" $testfile "${asm_file} ${srcfile}" {}] {
    return -1
}

set index [have_index $binfile]
require {string eq $index ""}

require !readnow

gdb_test "pipe maint print objfiles $testfile | grep c1" \
    " *qualified: *c1" \
    "class c1 in cooked index"

gdb_test "maint expand-symtabs"