gdb/testsuite/gdb.dwarf2/info-locals-optimized-out.exp

   1 # Copyright 2017-2021 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
  16 # Test that "info locals" shows optimized out variables.
  17
  18 load_lib dwarf.exp
  19
  20 # This test can only be run on targets which support DWARF-2 and use gas.
  21 if {![dwarf2_support]} {
  22     return 0
  23 }
  24
  25 standard_testfile main.c -dw.S
  26
  27 # Make some DWARF for the test.
  28
  29 set asm_file [standard_output_file $srcfile2]
  30 Dwarf::assemble $asm_file {
  31     global dwarf_regnum regname srcfile
  32
  33     set buf_var [gdb_target_symbol buf]
  34
  35     cu {} {
  36         DW_TAG_compile_unit {
  37                 {DW_AT_name $srcfile}
  38                 {DW_AT_comp_dir /tmp}
  39         } {
  40             declare_labels int_type_label
  41
  42             # int
  43             int_type_label: base_type {
  44                 {name "int"}
  45                 {encoding @DW_ATE_signed}
  46                 {byte_size 4 DW_FORM_sdata}
  47             }
  48
  49             DW_TAG_subprogram {
  50                 {MACRO_AT_func { main }}
  51                 {DW_AT_external 1 flag}
  52             } {
  53                 # A variable completely optimized out.
  54                 DW_TAG_variable {
  55                     {name "opt_out"}
  56                     {type :$int_type_label}
  57                 }
  58             }
  59         }
  60     }
  61 }
  62
  63 if { [prepare_for_testing ${testfile}.exp ${testfile} \
  64           [list $srcfile $asm_file] {nodebug}] } {
  65     return -1
  66 }
  67
  68 if ![runto_main] {
  69     return -1
  70 }
  71
  72 # Make sure "info locals" shows optimized out variables.
  73 gdb_test "info locals" ".*opt_out = <optimized out>.*" "info local shows optimized out variable"