gdb/testsuite/gdb.dwarf2/ada-thick-pointer.exp

# Copyright 2020-2021 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
# 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 that handling of Ada thick pointers does not rewrite other
# similar types.

load_lib dwarf.exp

# This test can only be run on targets which support DWARF-2 and use gas.
if {![dwarf2_support]} {
    return 0
}

standard_testfile main.c -debug.S

# Set up the DWARF for the test.

set asm_file [standard_output_file $srcfile2]
Dwarf::assemble $asm_file {
    global srcdir subdir srcfile

    cu {} {
	DW_TAG_compile_unit {
                {DW_AT_language @DW_LANG_Ada95}
                {DW_AT_name     $srcfile}
        } {
	    declare_labels integer array array_pointer bounds_pointer

            integer: DW_TAG_base_type {
                {DW_AT_byte_size 8 DW_FORM_sdata}
                {DW_AT_encoding  @DW_ATE_signed}
                {DW_AT_name      integer}
            }

	    array: DW_TAG_array_type {
		{DW_AT_name array_type}
		{DW_AT_type :$integer}
	    } {
		DW_TAG_subrange_type {
		    {DW_AT_type        :$integer}
		    {DW_AT_lower_bound 1 DW_FORM_data1}
		    {DW_AT_upper_bound 7 DW_FORM_data1}
		}
	    }

	    array_pointer: DW_TAG_pointer_type {
		{DW_AT_type :$array}
		{DW_AT_byte_size 8 DW_FORM_sdata}
	    }

	    # This isn't exactly what GNAT emits, but it doesn't
	    # matter.
	    bounds_pointer: DW_TAG_pointer_type {
		{DW_AT_type :$integer}
		{DW_AT_byte_size 8 DW_FORM_sdata}
	    }

	    DW_TAG_structure_type {
		{DW_AT_name thick_pointer_type}
		{DW_AT_byte_size 8 DW_FORM_sdata}
	    } {
		DW_TAG_member {
		    {DW_AT_name P_ARRAY}
		    {DW_AT_type :$array_pointer}
		    {DW_AT_data_member_location 0 DW_FORM_sdata}
		}
		DW_TAG_member {
		    {DW_AT_name P_BOUNDS}
		    {DW_AT_type :$bounds_pointer}
		    {DW_AT_data_member_location 8 DW_FORM_sdata}
		}
	    }
	}
    }
}

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

gdb_test_no_output "set language ada"
gdb_test "ptype array_type" "type = array \\(1 \\.\\. 7\\) of integer"