gdb/testsuite/gdb.dwarf2/dw2-ref-missing-frame.exp

   1 # Copyright 2008-2017 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 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
  23 set srcfuncfile ${testfile}-func.c
  24 set srcmainfile ${testfile}-main.c
  25 set executable ${testfile}
  26
  27 if {[prepare_for_testing_full "failed to prepare" \
  28          [list $testfile {} $srcfile {} $srcfuncfile {} \
  29               $srcmainfile debug]]} {
  30     return -1
  31 }
  32
  33 # First try referencing DW_AT_frame_base which is not defined.
  34 if [runto func_nofb] {
  35     gdb_test "p func_nofb_var" {Could not find the frame base for "func_nofb".} "func_nofb print"
  36     gdb_test "bt full" " in main .* main_var = 1" "func_nofb backtrace"
  37 }
  38
  39 # GDB could have crashed.
  40 clean_restart $executable
  41
  42 # And now try referencing DW_AT_frame_base defined using a self-reference
  43 # (DW_OP_fbreg).
  44 if [runto func_loopfb] {
  45     gdb_test "p func_loopfb_var" "DWARF-2 expression error: Loop detected .*" "func_loopfb print"
  46     gdb_test "bt full" " in main .* main_var = 1" "func_loopfb backtrace"
  47 }