gdb/testsuite/gdb.dwarf2/implptr-64bit.exp

   1 # Copyright 2011-2019 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
  23
  24 proc test { dwarf_version offset_size addr_size ref_addr_size two_cu } {
  25     global testfile srcfile
  26
  27     set name "d${dwarf_version}o${offset_size}a${addr_size}r${ref_addr_size}t${two_cu}"
  28
  29     # Make some DWARF for the test.
  30     set asm_file [standard_output_file ${testfile}-${name}.S]
  31     Dwarf::assemble $asm_file {
  32         upvar dwarf_version dwarf_version
  33         upvar addr_size addr_size
  34         upvar offset_size offset_size
  35         upvar ref_addr_size ref_addr_size
  36         upvar two_cu two_cu
  37
  38         set is_64 [expr { $offset_size == 4 ? 0 : 1 }]
  39
  40         cu {
  41             version $dwarf_version
  42             addr_size $addr_size
  43             is_64 $is_64
  44         } {
  45             compile_unit {
  46                 { producer "GNU C 4.4.3" }
  47                 { language @DW_LANG_C89 }
  48                 { name 1.c }
  49             } {
  50                 declare_labels struct_label variable_label int_label pointer_label
  51
  52                 int_label: base_type {
  53                     { byte_size 4 DW_FORM_sdata }
  54                     { DW_AT_encoding @DW_ATE_signed }
  55                     { name int }
  56                 }
  57
  58                 struct_label: structure_type {
  59                     { name s }
  60                     { byte_size 4 sdata }
  61                 } {
  62                     member {
  63                         { name f }
  64                         { type :$int_label }
  65                         { data_member_location 0 data1 }
  66                     }
  67                 }
  68
  69                 pointer_label: pointer_type {
  70                     { byte_size $Dwarf::_cu_addr_size sdata }
  71                     { type  :$struct_label }
  72                 }
  73
  74                 variable_label: DW_TAG_variable {
  75                     { name v }
  76                     { location {
  77                         DW_OP_implicit_value 0x1 0x1 0x1 0x1
  78                     } SPECIAL_expr}
  79                     { type :$struct_label "DW_FORM_ref$ref_addr_size" }
  80                 }
  81
  82                 if { !$two_cu } {
  83                     subprogram {
  84                         { name main }
  85                         { low_pc main addr }
  86                         { high_pc "main+0x100" addr }
  87                         { type :$int_label }
  88                         { external 1 flag }
  89                     } {
  90                         DW_TAG_variable {
  91                             { name p }
  92                             { location {
  93                                 GNU_implicit_pointer $variable_label 0
  94                             } SPECIAL_expr }
  95                             { type :$pointer_label "DW_FORM_ref$ref_addr_size" }
  96                         }
  97                     }
  98                 }
  99             }
 100         }
 101
 102         if { $two_cu } {
 103             cu {
 104                 version $dwarf_version
 105                 addr_size $addr_size
 106                 is_64 $is_64
 107             } {
 108                 compile_unit {
 109                     { producer "GNU C 4.4.3" }
 110                     { language @DW_LANG_C89 }
 111                     { name 1.c }
 112                 } {
 113                     subprogram {
 114                         { name main }
 115                         { low_pc main addr }
 116                         { high_pc "main+0x100" addr }
 117                         { type %$int_label }
 118                         { external 1 flag }
 119                     } {
 120                         DW_TAG_variable {
 121                             { name p }
 122                             { location {
 123                                 GNU_implicit_pointer $variable_label 0
 124                             } SPECIAL_expr }
 125                             { type %$pointer_label }
 126                         }
 127                     }
 128                 }
 129             }
 130         }
 131     }
 132
 133     # 32-bit targets do not support any of the testcases; keep quiet there.
 134     set opts {quiet}
 135     set executable ${testfile}-${name}
 136     if [prepare_for_testing "failed to prepare" $executable "${asm_file} ${srcfile}" $opts] {
 137         return -1
 138     }
 139
 140     if ![runto_main] {
 141         return -1
 142     }
 143
 144     gdb_test "p/x p->f" " = 0x1010101" $name
 145 }
 146
 147 #    DWARF_VERSION OFFSET_SIZE ADDR_SIZE REF_ADDR_SIZE TWO_CU
 148 test 2 8 4 4 0
 149 test 2 4 8 8 0
 150 test 3 8 4 8 0
 151 test 3 4 8 4 0
 152 test 2 8 4 4 1
 153 test 2 4 8 8 1
 154 test 3 8 4 8 1
 155 test 3 4 8 4 1