gdb/testsuite/gdb.dwarf2/implptrconst.exp

   1 # Copyright 2013-2024 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
  16 load_lib dwarf.exp
  17
  18 # This test can only be run on targets which support DWARF-2 and use gas.
  19 require dwarf2_support
  20
  21 require allow_cplus_tests
  22
  23 standard_testfile main.c -dw.S
  24
  25 # Make some DWARF for the test.
  26 set asm_file [standard_output_file $srcfile2]
  27 Dwarf::assemble $asm_file {
  28     # Creating a CU with 4-byte addresses lets this test link on both
  29     # 32- and 64-bit machines.
  30     cu { addr_size 4 } {
  31         compile_unit {} {
  32             declare_labels byte_label size_type_label array_label
  33             declare_labels var_label ptr_label
  34
  35             byte_label: base_type {
  36                 {name byte}
  37                 {encoding @DW_ATE_signed}
  38                 {byte_size 1 DW_FORM_sdata}
  39             }
  40
  41             size_type_label: base_type {
  42                 {name sizetype}
  43                 {encoding @DW_ATE_unsigned}
  44                 {byte_size 4 DW_FORM_sdata}
  45             }
  46
  47             array_label: array_type {
  48                 {type :$byte_label}
  49             } {
  50                 subrange_type {
  51                     {type :$size_type_label}
  52                     {upper_bound 7 DW_FORM_data1}
  53                 }
  54             }
  55
  56             var_label: DW_TAG_variable {
  57                 {name b}
  58                 {type :$array_label}
  59                 {const_value rstuvwxy DW_FORM_block1}
  60             }
  61
  62             ptr_label: pointer_type {
  63                 {byte_size 4 DW_FORM_sdata}
  64                 {type :$byte_label}
  65             }
  66
  67             DW_TAG_variable {
  68                 {name c}
  69                 {type :$ptr_label}
  70                 {location {
  71                     GNU_implicit_pointer $var_label 0
  72                 } SPECIAL_expr}
  73             }
  74
  75             DW_TAG_variable {
  76                 {name d}
  77                 {type :$ptr_label}
  78                 {location {
  79                     GNU_implicit_pointer $var_label 2
  80                 } SPECIAL_expr}
  81             }
  82         }
  83     }
  84 }
  85
  86 if { [build_executable ${testfile}.exp ${testfile} \
  87           [list $srcfile $asm_file] {nodebug}] } {
  88     return -1
  89 }
  90
  91 # We need --readnow because otherwise we never read in the CU we
  92 # created above.
  93 set saved_gdbflags $GDBFLAGS
  94 set GDBFLAGS "$GDBFLAGS -readnow"
  95 clean_restart ${testfile}
  96 set GDBFLAGS $saved_gdbflags
  97
  98 if ![runto_main] {
  99     return -1
 100 }
 101
 102 gdb_test "print *c" " = 114 'r'"
 103 gdb_test "print d\[-2\]" " = 114 'r'"