gdb/testsuite/gdb.dwarf2/imported-unit-abstract-const-value.exp

   1 # Copyright 2020-2021 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 a concrete var importing an abstract var using
  17 # DW_AT_abstract_origin inherits the DW_AT_const_value attribute.
  18
  19 load_lib dwarf.exp
  20
  21 # This test can only be run on targets which support DWARF-2 and use gas.
  22 if {![dwarf2_support]} {
  23     return 0
  24 };
  25
  26 standard_testfile main.c .S
  27
  28 set executable ${testfile}
  29 set asm_file [standard_output_file ${srcfile2}]
  30
  31 # We need to know the size of integer type in order
  32 # to write some of the debugging info we'd like to generate.
  33 if [prepare_for_testing "failed to prepare" ${testfile} ${srcfile}] {
  34     return -1
  35 }
  36
  37 # Create the DWARF.
  38 Dwarf::assemble $asm_file {
  39     declare_labels cu_label main_label int_label
  40     declare_labels aaa_label
  41     set int_size [get_sizeof "int" 4]
  42
  43     cu {} {
  44         cu_label: partial_unit {
  45             {language @DW_LANG_C}
  46             {name "imported_unit.c"}
  47         } {
  48             int_label: base_type {
  49                 {byte_size $int_size sdata}
  50                 {encoding @DW_ATE_signed}
  51                 {name int}
  52             }
  53
  54             aaa_label: DW_TAG_variable {
  55                 {name aaa}
  56                 {type :$int_label}
  57                 {const_value 1 DW_FORM_sdata}
  58             }
  59
  60             main_label: subprogram {
  61                 {name main}
  62                 {type :$int_label}
  63                 {external 1 flag}
  64             }
  65         }
  66     }
  67
  68     cu {} {
  69         compile_unit {
  70             {language @DW_LANG_C}
  71             {name "<artificial>"}
  72         } {
  73             DW_TAG_variable {
  74                 {abstract_origin %$aaa_label}
  75             }
  76             subprogram {
  77                 {abstract_origin %$main_label}
  78                 {MACRO_AT_range {main}}
  79             }
  80         }
  81     }
  82 }
  83
  84 if { [prepare_for_testing "failed to prepare" ${testfile} \
  85           [list $srcfile $asm_file] {nodebug}] } {
  86     return -1
  87 }
  88
  89 gdb_test "p aaa" "= 1"