1# Copyright 2011-2017 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 $asm_file { 28 global srcdir subdir srcfile 29 30 cu { version 3 addr_size 4 } { 31 compile_unit { 32 {producer "GNU C 4.4.3"} 33 {language @DW_LANG_C89} 34 {name 1.c} 35 } { 36 declare_labels int_label struct_label pointer_label variable_label 37 38 int_label: base_type { 39 {byte_size 4 sdata} 40 {encoding @DW_ATE_signed} 41 {name int} 42 } 43 44 struct_label: structure_type { 45 {name s} 46 {byte_size 4 sdata} 47 } { 48 member { 49 {name f} 50 {type :$int_label} 51 {data_member_location 0 data1} 52 } 53 } 54 55 subprogram { 56 {MACRO_AT_func { main ${srcdir}/${subdir}/${srcfile} }} 57 {type :$int_label} 58 {external 1 flag} 59 } { 60 pointer_label: pointer_type { 61 {byte_size 4 sdata} 62 {type :$struct_label} 63 } 64 65 variable_label: DW_TAG_variable { 66 {name v} 67 {location {} DW_FORM_block1} 68 {type :$struct_label} 69 } 70 71 DW_TAG_variable { 72 {name p} 73 {location { 74 GNU_implicit_pointer $variable_label 0 75 } SPECIAL_expr} 76 {type :$pointer_label} 77 } 78 } 79 } 80 } 81} 82 83if [prepare_for_testing "failed to prepare" $executable "${asm_file} ${srcfile}" {}] { 84 return -1 85} 86 87# DW_OP_GNU_implicit_pointer implementation requires a valid frame. 88if ![runto_main] { 89 return -1 90} 91 92gdb_test "p p->f" " = <optimized out>" 93