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# Copyright (C) 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/>.

# Test "start" for D, dwarf assembly version.

load_lib d-support.exp
load_lib dwarf.exp
require allow_d_tests dwarf2_support

# This testcase verifies the behavior of the `start' command, which
# does not work when we use the gdb stub...
require !use_gdb_stub

standard_testfile dmain.c -dw.S

with_shared_gdb {
    lassign [function_range _Dmain ${srcdir}/${subdir}/${srcfile}] \
	dmain_start dmain_length

    lassign [function_range main ${srcdir}/${subdir}/${srcfile}] \
	main_start main_length
}

set asm_file [standard_output_file $srcfile2]
Dwarf::assemble $asm_file {
    global dmain_start dmain_length
    global main_start main_length

    cu { label cu_start } {
	compile_unit {
	    {language @DW_LANG_D}
	} {
	    module {
		{name dmain}
	    }
	    subprogram {
		{name "D main" }
		{MIPS_linkage_name "_Dmain"}
		{low_pc $dmain_start DW_FORM_addr}
		{high_pc "$dmain_start + $dmain_length" DW_FORM_addr}
		{external 1 flag_present}
	    }
	    subprogram {
		{name "dmain._d_cmain!().main" }
		{MIPS_linkage_name "main"}
		{low_pc $main_start DW_FORM_addr}
		{high_pc "$main_start + $main_length" DW_FORM_addr}
		{external 1 flag_present}
	    }
	}
    }

    aranges {} cu_start {
	arange {} $dmain_start $dmain_length
	arange {} $main_start $main_length
    }
}

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

# Verify that "start" lands inside the right procedure.
if {[gdb_start_cmd] < 0} {
    unsupported "start failed"
    return -1
}

gdb_test "" \
    "in D main \\(\\)" \
    "start"

gdb_test "show language" {"auto; currently d".}