gdb/testsuite/gdb.dwarf2/dw2-lexical-block-bare.exp

   1 # Copyright 2016-2018 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 .S main.c
  23
  24 # Make some DWARF for the test.
  25 set asm_file [standard_output_file $srcfile]
  26 Dwarf::assemble $asm_file {
  27     global srcdir subdir srcfile2
  28
  29     set main_result [function_range main ${srcdir}/${subdir}/${srcfile2}]
  30     set main_start [lindex $main_result 0]
  31     set main_length [lindex $main_result 1]
  32
  33     cu {} {
  34         compile_unit {
  35             {low_pc $main_start addr}
  36             {high_pc "$main_start + $main_length" addr}
  37         } {
  38             declare_labels integer_label
  39
  40             integer_label: DW_TAG_base_type {
  41                 {DW_AT_byte_size 4 DW_FORM_sdata}
  42                 {DW_AT_encoding  @DW_ATE_signed}
  43                 {DW_AT_name      integer}
  44             }
  45
  46             DW_TAG_subprogram {
  47                 {name main}
  48                 {DW_AT_external 1 flag}
  49                 {low_pc $main_start addr}
  50                 {high_pc "$main_start + $main_length" addr}
  51             } {
  52                 DW_TAG_lexical_block {
  53                 } {
  54                     DW_TAG_variable {
  55                         {DW_AT_name testvar}
  56                             {DW_AT_type :$integer_label}
  57                             {DW_AT_external 1 flag}
  58                         {DW_AT_location {
  59                             DW_OP_addr [gdb_target_symbol main]
  60                         } SPECIAL_expr}
  61                     }
  62                 }
  63             }
  64         }
  65     }
  66 }
  67
  68 if { [prepare_for_testing "failed to prepare" ${testfile} \
  69                           [list $srcfile2 $asm_file] {nodebug}] } {
  70     return -1
  71 }
  72
  73 runto_main
  74
  75 # FAILing GDB did print: No symbol "testvar" in current context.
  76 gdb_test "p testvar" { = -?[0-9]+}