gdb/testsuite/gdb.dwarf2/implptr-optimized-out.exp

   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/>.
  15 load_lib dwarf.exp
  16
  17 # This test can only be run on targets which support DWARF-2 and use gas.
  18 if {![dwarf2_support]} {
  19     return 0
  20 }
  21
  22 standard_testfile main.c .S
  23 set executable ${testfile}
  24
  25 # Create the DWARF.
  26 set asm_file [standard_output_file $srcfile2]
  27 Dwarf::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
  83 if [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.
  88 if ![runto_main] {
  89     return -1
  90 }
  91
  92 gdb_test "p p->f" " = <optimized out>"