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# Copyright 2022-2023 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/>.

load_lib dwarf.exp

# This test can only be run on targets which support DWARF-2 and use gas.
require dwarf2_support

standard_testfile _start.c debug-names.S

set func_info_vars \
    [get_func_info _start [list debug additional_flags=-nostartfiles]]

# Create the DWARF.
set asm_file [standard_output_file $srcfile2]
Dwarf::assemble {
    filename $asm_file
    add_dummy_cus 0
} {
    global func_info_vars
    foreach var $func_info_vars {
	global $var
    }

    cu { label cu_label } {
	compile_unit {{language @DW_LANG_C}} {
	    subprogram {
		{DW_AT_name _start}
		{DW_AT_low_pc $_start_start DW_FORM_addr}
		{DW_AT_high_pc $_start_end DW_FORM_addr}
	    }
	}
    }

    cu { label cu_label_2 } {
	compile_unit {{language @DW_LANG_C}} {
	    base_type {
		{name int}
		{byte_size 4 sdata}
		{encoding @DW_ATE_signed}
	    }
	}
    }

    debug_names {} {
	cu cu_label_2
	cu cu_label
	name _start subprogram cu_label 0xEDDB6232
	name int base_type cu_label 0xB888030
    }
}

if [prepare_for_testing "failed to prepare" $testfile "${asm_file} ${srcfile}" \
	[list additional_flags=-nostartfiles]] {
    return -1
}

# Check for warning.
set re \
    [list \
	 "warning:" \
	 "Section .debug_names has non-ascending CU table," \
	 "ignoring .debug_names."]
set re [join $re]
gdb_assert {[regexp $re $gdb_file_cmd_msg]} "warning"

# Verify that .debug_names section is ignored.
set index [have_index $binfile]
gdb_assert { [string equal $index ""] } ".debug_names not used"