gdb/testsuite/gdb.dwarf2/dw2-align.exp

   1 # Copyright 2018-2020 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 align-dw.S
  23
  24 # Make some DWARF for the test.
  25
  26 set asm_file [standard_output_file $srcfile2]
  27 Dwarf::assemble $asm_file {
  28     global srcdir subdir srcfile
  29
  30     cu {} {
  31         DW_TAG_compile_unit {
  32                 {DW_AT_language @DW_LANG_C_plus_plus}
  33                 {DW_AT_name     dw2-align.c}
  34                 {DW_AT_comp_dir /tmp}
  35         } {
  36             declare_labels itype ptype
  37
  38             itype: DW_TAG_base_type {
  39                 {DW_AT_byte_size 4 DW_FORM_sdata}
  40                 {DW_AT_encoding  @DW_ATE_signed}
  41                 {DW_AT_name int_4096}
  42                 {DW_AT_alignment 4096 DW_FORM_sdata}
  43             }
  44
  45             ptype: DW_TAG_pointer_type {
  46                 {DW_AT_byte_size 8 DW_FORM_sdata}
  47                 {DW_AT_type :$itype}
  48                 {DW_AT_alignment 4096 DW_FORM_sdata}
  49             }
  50
  51             DW_TAG_typedef {
  52                 {DW_AT_name ptr_4096}
  53                 {DW_AT_type :$ptype}
  54             }
  55
  56             DW_TAG_structure_type {
  57                 {DW_AT_name "struct_4096"}
  58                 {DW_AT_byte_size 4096 DW_FORM_sdata}
  59                 {DW_AT_alignment 4096 DW_FORM_udata}
  60             } {
  61                 member {
  62                     {name a}
  63                     {type :$itype}
  64                     {data_member_location 0 data1}
  65                 }
  66             }
  67         }
  68     }
  69 }
  70
  71 if { [prepare_for_testing "failed to prepare" ${testfile} \
  72           [list $srcfile $asm_file] {nodebug}] } {
  73     return -1
  74 }
  75
  76 if ![runto_main] {
  77     return -1
  78 }
  79
  80 gdb_test_no_output "set lang c++"
  81 gdb_test "print alignof(int_4096)" " = 4096"
  82 gdb_test "print alignof(ptr_4096)" " = 4096"
  83 gdb_test "print alignof(struct_4096)" " = 4096"