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 "little"
  32 set test "show endian"
  33 gdb_test_multiple $test $test {
  34     -re "(.* )(big|little)( endian.*)\r\n$gdb_prompt $" {
  35         set endianness $expect_out(2,string)
  36         pass "endianness"
  37     }
  38 }
  39
  40 set high "0x123456789abcdef0"
  41 set low "0x0fedcba987654321"
  42 if { $endianness == "big" } {
  43     set pair $high,$low
  44 } else {
  45     set pair $low,$high
  46 }
  47
  48 # Make some DWARF for the test.
  49 set asm_file [standard_output_file $srcfile2]
  50 Dwarf::assemble $asm_file {
  51     global pair
  52
  53     cu { addr_size 4 } {
  54         compile_unit {} {
  55             declare_labels int_label
  56
  57             int_label: DW_TAG_base_type {
  58                 {DW_AT_byte_size 16 DW_FORM_udata}
  59                 {DW_AT_encoding @DW_ATE_unsigned}
  60                 {DW_AT_name "__uint128"}
  61             }
  62
  63             DW_TAG_variable {
  64                 {name xxx}
  65                 {type :$int_label}
  66                 {const_value $pair DW_FORM_data16}
  67             }
  68         }
  69     }
  70 }
  71
  72 if { [prepare_for_testing "failed to prepare" ${testfile} \
  73                           [list $srcfile $asm_file] {nodebug}] } {
  74     return -1
  75 }
  76
  77 gdb_test "p/x xxx" " = 0x123456789abcdef00fedcba987654321"