gdb/testsuite/gdb.dwarf2/subrange.exp

# Copyright 2013-2025 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/>.
load_lib dwarf.exp

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

require allow_cplus_tests

standard_testfile method-ptr.cc -dw.S

# Make some DWARF for the test.
set asm_file [standard_output_file $srcfile2]
Dwarf::assemble $asm_file {
    cu {} {
 	compile_unit {{language @DW_LANG_Pascal83}} {
	    declare_labels byte_label typedef_label array_label

	    # A subrange's underlying type that is a typedef.
	    byte_label: base_type {
		{name byte}
		{encoding @DW_ATE_unsigned}
		{byte_size 1 DW_FORM_sdata}
	    }

	    typedef_label: typedef {
		{name byte_typedef}
		{type :$byte_label}
	    }

	    array_label: array_type {
		{type :$byte_label}
	    } {
		subrange_type {
		    {lower_bound 0 DW_FORM_sdata}
		    {upper_bound 191 DW_FORM_sdata}
		    {byte_stride 2 DW_FORM_sdata}
		    {type :$typedef_label}
		}
	    }

	    typedef {
		{name TByteArray}
		{type :$array_label}
	    }

	    # This subrange's underlying type is signed, but the bounds are
	    # specified using a non-signed form.
	    declare_labels signed_byte_label subrange_with_buggy_negative_bounds_label

	    signed_byte_label: base_type {
		{name signed_byte}
		{encoding @DW_ATE_signed}
		{byte_size 1 DW_FORM_sdata}
	    }

	    # The bounds mean -16 to -12.
	    subrange_with_buggy_negative_bounds_label: subrange_type {
		{lower_bound 0xf0 DW_FORM_udata}
		{upper_bound 0xf4 DW_FORM_udata}
		{type :$signed_byte_label}
	    }

	    DW_TAG_variable {
		{name subrange_with_buggy_negative_bounds_variable}
		{type :$subrange_with_buggy_negative_bounds_label}
	    }

	    # This subrange's base type is 16-bytes long (although the bounds fit in
	    # signed 64-bit).  This is to test the fix for PR 29386.
	    declare_labels a_16_byte_integer_label a_16_byte_subrange_label

	    a_16_byte_integer_label: base_type {
		{byte_size 16 udata}
		{encoding @DW_ATE_signed}
	    }

	    a_16_byte_subrange_label: subrange_type {
		{lower_bound -9223372036854775808 DW_FORM_sdata}
		{upper_bound 9223372036854775807 DW_FORM_sdata}
		{type :$a_16_byte_integer_label}
	    }

	    DW_TAG_variable {
		{name a_16_byte_subrange_variable}
		{type :$a_16_byte_subrange_label}
	    }
	}
    }
}

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

gdb_test_no_output "set language pascal"

gdb_test "ptype TByteArray" \
    "type = array \\\[0\\.\\.191\\\] of byte"
gdb_test "ptype subrange_with_buggy_negative_bounds_variable" \
    "type = -16\\.\\.-12"
gdb_test "ptype a_16_byte_subrange_variable" \
    "type = -9223372036854775808\\.\\.9223372036854775807"