1# Copyright 2017-2023 Free Software Foundation, Inc. 2 3# This program is free software; you can redistribute it and/or modify 4# it under the terms of the GNU General Public License as published by 5# the Free Software Foundation; either version 3 of the License, or 6# (at your option) any later version. 7# 8# This program is distributed in the hope that it will be useful, 9# but WITHOUT ANY WARRANTY; without even the implied warranty of 10# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 11# GNU General Public License for more details. 12# 13# You should have received a copy of the GNU General Public License 14# along with this program. If not, see <http://www.gnu.org/licenses/>. 15 16load_lib dwarf.exp 17 18# This test can only be run on targets which support DWARF-2 and use gas. 19if {![dwarf2_support]} { 20 return 0 21} 22 23standard_testfile main.c -dw.S 24 25# Make some DWARF for the test. 26set asm_file [standard_output_file $srcfile2] 27Dwarf::assemble $asm_file { 28 global pair 29 30 cu { addr_size 4 } { 31 compile_unit {} { 32 declare_labels int_label ushort_label struct_label 33 34 int_label: DW_TAG_base_type { 35 {DW_AT_byte_size 4 DW_FORM_udata} 36 {DW_AT_encoding @DW_ATE_unsigned} 37 {DW_AT_name "myint"} 38 } 39 ushort_label: DW_TAG_base_type { 40 {DW_AT_byte_size 2 DW_FORM_udata} 41 {DW_AT_encoding @DW_ATE_unsigned} 42 {DW_AT_name "myushort"} 43 } 44 45 struct_label: DW_TAG_structure_type { 46 {DW_AT_name "S"} 47 {DW_AT_byte_size 8 DW_FORM_udata} 48 } { 49 DW_TAG_member { 50 {DW_AT_name "a"} 51 {DW_AT_type :${int_label}} 52 {DW_AT_data_member_location 0 DW_FORM_udata} 53 } 54 55 DW_TAG_member { 56 {DW_AT_name "b"} 57 {DW_AT_type :${ushort_label}} 58 {DW_AT_data_member_location 4 DW_FORM_udata} 59 } 60 } 61 62 DW_TAG_variable { 63 {DW_AT_name "s1"} 64 {DW_AT_type :${struct_label}} 65 {DW_AT_external 1 DW_FORM_flag} 66 {DW_AT_location { 67 DW_OP_constu 1 68 DW_OP_stack_value 69 DW_OP_piece 4 70 DW_OP_constu 0 71 DW_OP_stack_value 72 DW_OP_piece 2 73 } SPECIAL_expr} 74 } 75 76 DW_TAG_variable { 77 {DW_AT_name "s2"} 78 {DW_AT_type :${struct_label}} 79 {DW_AT_external 1 DW_FORM_flag} 80 {DW_AT_location { 81 DW_OP_constu 1 82 DW_OP_stack_value 83 DW_OP_piece 4 84 DW_OP_constu 0 85 DW_OP_stack_value 86 DW_OP_piece 8 87 } SPECIAL_expr} 88 } 89 } 90 } 91} 92 93if { [prepare_for_testing "failed to prepare" ${testfile} \ 94 [list $srcfile $asm_file] {nodebug}] } { 95 return -1 96} 97 98gdb_test "p s1" " = {a = 1, b = 0}" 99gdb_test "p s2" \ 100 "access outside bounds of object referenced via synthetic pointer" 101