1# Copyright 2011-2020 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/>. 15load_lib dwarf.exp 16 17# This test can only be run on targets which support DWARF-2 and use gas. 18if {![dwarf2_support]} { 19 return 0 20} 21 22standard_testfile main.c .S 23set executable ${testfile} 24 25# Create the DWARF. 26set asm_file [standard_output_file $srcfile2] 27Dwarf::assemble $asm_file { 28 cu { version 3 addr_size 4 } { 29 compile_unit { 30 {producer "GNU C 4.4.3"} 31 {language @DW_LANG_C89} 32 {name 1.c} 33 } { 34 declare_labels int_label struct_label pointer_label variable_label 35 36 int_label: base_type { 37 {byte_size 4 sdata} 38 {encoding @DW_ATE_signed} 39 {name int} 40 } 41 42 struct_label: structure_type { 43 {name s} 44 {byte_size 4 sdata} 45 } { 46 member { 47 {name f} 48 {type :$int_label} 49 {data_member_location 0 data1} 50 } 51 } 52 53 subprogram { 54 {MACRO_AT_func { main }} 55 {type :$int_label} 56 {external 1 flag} 57 } { 58 pointer_label: pointer_type { 59 {byte_size 4 sdata} 60 {type :$struct_label} 61 } 62 63 variable_label: DW_TAG_variable { 64 {name v} 65 {location {} DW_FORM_block1} 66 {type :$struct_label} 67 } 68 69 DW_TAG_variable { 70 {name p} 71 {location { 72 GNU_implicit_pointer $variable_label 0 73 } SPECIAL_expr} 74 {type :$pointer_label} 75 } 76 } 77 } 78 } 79} 80 81if [prepare_for_testing "failed to prepare" $executable "${asm_file} ${srcfile}" {}] { 82 return -1 83} 84 85# DW_OP_GNU_implicit_pointer implementation requires a valid frame. 86if ![runto_main] { 87 return -1 88} 89 90gdb_test "p p->f" " = <optimized out>" 91