gdb/testsuite/gdb.dwarf2/arr-stride.exp

   1 # Copyright 2014-2024 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 require dwarf2_support
  19
  20 standard_testfile main.c -dw.S
  21
  22 # Make some DWARF for the test.
  23 set asm_file [standard_output_file $srcfile2]
  24 Dwarf::assemble $asm_file {
  25     cu {} {
  26         DW_TAG_compile_unit {
  27                 {DW_AT_language @DW_LANG_Ada95}
  28                 {DW_AT_name     foo.adb}
  29                 {DW_AT_comp_dir /tmp}
  30         } {
  31             declare_labels integer_label array_elt_label array_label \
  32                 big_array_label struct_label
  33
  34             integer_label: DW_TAG_base_type {
  35                 {DW_AT_byte_size 4 DW_FORM_sdata}
  36                 {DW_AT_encoding  @DW_ATE_signed}
  37                 {DW_AT_name      integer}
  38             }
  39
  40             array_elt_label: DW_TAG_subrange_type {
  41                 {DW_AT_lower_bound 0xe0 DW_FORM_data1}
  42                 {DW_AT_upper_bound 0x1f DW_FORM_data1}
  43                 {DW_AT_name        pck__item}
  44                 {DW_AT_type        :$integer_label}
  45             }
  46
  47             DW_TAG_typedef {
  48                 {DW_AT_name pck__table}
  49                 {DW_AT_type :$array_label}
  50             }
  51
  52             array_label: DW_TAG_array_type {
  53                 {DW_AT_name pck__table}
  54                 {DW_AT_bit_stride 6 DW_FORM_data1}
  55                 {DW_AT_type :$array_elt_label}
  56             } {
  57                 DW_TAG_subrange_type {
  58                     {DW_AT_type        :$integer_label}
  59                     {DW_AT_lower_bound 0 DW_FORM_data1}
  60                     {DW_AT_upper_bound 4 DW_FORM_data1}
  61                 }
  62             }
  63
  64             DW_TAG_typedef {
  65                 {DW_AT_name pck__big_table}
  66                 {DW_AT_type :$big_array_label}
  67             }
  68
  69             big_array_label: DW_TAG_array_type {
  70                 {DW_AT_name pck__big_table}
  71                 {DW_AT_byte_stride 1 DW_FORM_data1}
  72                 {DW_AT_type :$array_elt_label}
  73             } {
  74                 DW_TAG_subrange_type {
  75                     {DW_AT_type        :$integer_label}
  76                     {DW_AT_lower_bound 0 DW_FORM_data1}
  77                     {DW_AT_upper_bound 4 DW_FORM_data1}
  78                 }
  79             }
  80
  81             struct_label: DW_TAG_structure_type {
  82                 {name struct_type}
  83                 {byte_size 16 DW_FORM_sdata}
  84             } {
  85                 member {
  86                     {name intfield}
  87                     {type :$integer_label}
  88                     {data_member_location 0 DW_FORM_sdata}
  89                 }
  90                 member {
  91                     {name arrayfield}
  92                     {type :$array_label}
  93                     {data_member_location 4 DW_FORM_sdata}
  94                 }
  95             }
  96
  97             DW_TAG_variable {
  98                 {name the_struct}
  99                 {external 1 DW_FORM_flag}
 100                 {location {
 101                     DW_OP_const1u 1
 102                     DW_OP_stack_value
 103                     DW_OP_piece 4
 104                     DW_OP_piece 12
 105                 } SPECIAL_expr}
 106                 {type :$struct_label}
 107             }
 108         }
 109     }
 110 }
 111
 112 if { [prepare_for_testing "failed to prepare" ${testfile} \
 113           [list $srcfile $asm_file] {nodebug}] } {
 114     return -1
 115 }
 116
 117 gdb_test_no_output "set language ada"
 118
 119 gdb_test "ptype pck.table" \
 120          "type = array \\(0 \\.\\. 4\\) of pck\\.item <packed: 6-bit elements>"
 121
 122 gdb_test "ptype pck.big_table" \
 123          "type = array \\(0 \\.\\. 4\\) of pck\\.item <packed: 8-bit elements>"
 124
 125 gdb_test "print the_struct" \
 126     "\\(intfield => 1, arrayfield => \\(0 => <optimized out>\\)\\)"