gdb/testsuite/gdb.dwarf2/formdata16.exp

   1 # Copyright 2017 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 if {![dwarf2_support]} {
  20     return 0
  21 }
  22
  23 standard_testfile .c formdata16-dw.S
  24
  25 # We need to know the endianess in order
  26 # to write some of the debugging info we'd like to generate.
  27 if [prepare_for_testing "failed to prepare for endianness test" ${testfile} ${srcfile}] {
  28     return -1
  29 }
  30
  31 set endianness [get_endianness]
  32
  33 set high "0x123456789abcdef0"
  34 set low "0x0fedcba987654321"
  35 if { $endianness == "big" } {
  36     set pair $high,$low
  37     set pair2 0x0,$low
  38     set negative 0xffffffffffffffff,$low
  39 } else {
  40     set pair $low,$high
  41     set pair2 $low,0x0
  42     set negative $low,0xffffffffffffffff
  43 }
  44
  45 # Make some DWARF for the test.
  46 set asm_file [standard_output_file $srcfile2]
  47 Dwarf::assemble $asm_file {
  48     global pair pair2 negative
  49
  50     cu { addr_size 4 } {
  51         compile_unit {} {
  52             declare_labels int_label sint_label
  53
  54             int_label: DW_TAG_base_type {
  55                 {DW_AT_byte_size 16 DW_FORM_udata}
  56                 {DW_AT_encoding @DW_ATE_unsigned}
  57                 {DW_AT_name "__uint128"}
  58             }
  59
  60             sint_label: DW_TAG_base_type {
  61                 {DW_AT_byte_size 16 DW_FORM_udata}
  62                 {DW_AT_encoding @DW_ATE_signed}
  63                 {DW_AT_name "__int128"}
  64             }
  65
  66             DW_TAG_variable {
  67                 {name xxx}
  68                 {type :$int_label}
  69                 {const_value $pair DW_FORM_data16}
  70             }
  71
  72             DW_TAG_variable {
  73                 {name yyy}
  74                 {type :$int_label}
  75                 {const_value $pair2 DW_FORM_data16}
  76             }
  77
  78             DW_TAG_variable {
  79                 {name sss}
  80                 {type :$sint_label}
  81                 {const_value $negative DW_FORM_data16}
  82             }
  83         }
  84     }
  85 }
  86
  87 if { [prepare_for_testing "failed to prepare" ${testfile} \
  88                           [list $srcfile $asm_file] {nodebug}] } {
  89     return -1
  90 }
  91
  92 gdb_test "p/x xxx" " = 0x123456789abcdef00fedcba987654321"
  93 gdb_test "p xxx" "= 24197857203266734864629346612071973665"
  94 gdb_test "p/x yyy" " = 0xfedcba987654321"
  95 gdb_test "p yyy" "= 1147797409030816545"
  96 gdb_test "p/x sss" " = 0xffffffffffffffff0fedcba987654321"
  97 gdb_test "p sss" "= -17298946664678735071"