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

   1 # Copyright 2014-2022 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 -dw.S
  23
  24 # Make some DWARF for the test.
  25 set asm_file [standard_output_file $srcfile2]
  26 Dwarf::assemble $asm_file {
  27     cu {} {
  28         DW_TAG_compile_unit {
  29                 {DW_AT_language @DW_LANG_Ada95}
  30                 {DW_AT_name     foo.adb}
  31                 {DW_AT_comp_dir /tmp}
  32         } {
  33             declare_labels integer_label array_elt_label array_label \
  34                 big_array_label struct_label
  35
  36             integer_label: DW_TAG_base_type {
  37                 {DW_AT_byte_size 4 DW_FORM_sdata}
  38                 {DW_AT_encoding  @DW_ATE_signed}
  39                 {DW_AT_name      integer}
  40             }
  41
  42             array_elt_label: DW_TAG_subrange_type {
  43                 {DW_AT_lower_bound 0xe0 DW_FORM_data1}
  44                 {DW_AT_upper_bound 0x1f DW_FORM_data1}
  45                 {DW_AT_name        pck__item}
  46                 {DW_AT_type        :$integer_label}
  47             }
  48
  49             DW_TAG_typedef {
  50                 {DW_AT_name pck__table}
  51                 {DW_AT_type :$array_label}
  52             }
  53
  54             array_label: DW_TAG_array_type {
  55                 {DW_AT_name pck__table}
  56                 {DW_AT_bit_stride 6 DW_FORM_data1}
  57                 {DW_AT_type :$array_elt_label}
  58             } {
  59                 DW_TAG_subrange_type {
  60                     {DW_AT_type        :$integer_label}
  61                     {DW_AT_lower_bound 0 DW_FORM_data1}
  62                     {DW_AT_upper_bound 4 DW_FORM_data1}
  63                 }
  64             }
  65
  66             DW_TAG_typedef {
  67                 {DW_AT_name pck__big_table}
  68                 {DW_AT_type :$big_array_label}
  69             }
  70
  71             big_array_label: DW_TAG_array_type {
  72                 {DW_AT_name pck__big_table}
  73                 {DW_AT_byte_stride 1 DW_FORM_data1}
  74                 {DW_AT_type :$array_elt_label}
  75             } {
  76                 DW_TAG_subrange_type {
  77                     {DW_AT_type        :$integer_label}
  78                     {DW_AT_lower_bound 0 DW_FORM_data1}
  79                     {DW_AT_upper_bound 4 DW_FORM_data1}
  80                 }
  81             }
  82
  83             struct_label: DW_TAG_structure_type {
  84                 {name struct_type}
  85                 {byte_size 16 DW_FORM_sdata}
  86             } {
  87                 member {
  88                     {name intfield}
  89                     {type :$integer_label}
  90                     {data_member_location 0 DW_FORM_sdata}
  91                 }
  92                 member {
  93                     {name arrayfield}
  94                     {type :$array_label}
  95                     {data_member_location 4 DW_FORM_sdata}
  96                 }
  97             }
  98
  99             DW_TAG_variable {
 100                 {name the_struct}
 101                 {external 1 DW_FORM_flag}
 102                 {location {
 103                     DW_OP_const1u 1
 104                     DW_OP_stack_value
 105                     DW_OP_piece 4
 106                     DW_OP_piece 12
 107                 } SPECIAL_expr}
 108                 {type :$struct_label}
 109             }
 110         }
 111     }
 112 }
 113
 114 if { [prepare_for_testing "failed to prepare" ${testfile} \
 115           [list $srcfile $asm_file] {nodebug}] } {
 116     return -1
 117 }
 118
 119 gdb_test_no_output "set language ada"
 120
 121 gdb_test "ptype pck.table" \
 122          "type = array \\(0 \\.\\. 4\\) of pck\\.item <packed: 6-bit elements>"
 123
 124 gdb_test "ptype pck.big_table" \
 125          "type = array \\(0 \\.\\. 4\\) of pck\\.item <packed: 8-bit elements>"
 126
 127 gdb_test "print the_struct" \
 128     "\\(intfield => 1, arrayfield => \\(0 => <optimized out>\\)\\)"