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

   1 # Copyright 2008-2022 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 -func.c -main.c
  23 lassign [function_range func_nofb \
  24              "${srcdir}/${subdir}/${srcfile2} ${srcdir}/${subdir}/${srcfile3}"] \
  25     func_nofb_start func_nofb_len
  26 lassign [function_range func_loopfb \
  27              "${srcdir}/${subdir}/${srcfile2} ${srcdir}/${subdir}/${srcfile3}"] \
  28     func_loopfb_start func_loopfb_len
  29
  30 set flags \
  31     [list \
  32          "additional_flags=\"-DFUNC_NOFB_START=$func_nofb_start\"" \
  33          "additional_flags=\"-DFUNC_NOFB_END=$func_nofb_start + $func_nofb_len\"" \
  34          "additional_flags=\"-DFUNC_LOOPFB_START=$func_loopfb_start\"" \
  35          "additional_flags=\"-DFUNC_LOOPFB_END=$func_loopfb_start + $func_loopfb_len\""]
  36 set executable ${testfile}
  37
  38 if { [prepare_for_testing_full "failed to prepare" \
  39           [list $testfile {} \
  40                $srcfile [concat $flags {nodebug}]  \
  41                $srcfile2 {nodebug} \
  42                $srcfile3 {debug}]] == -1 } {
  43     return -1
  44 }
  45
  46 # First try referencing DW_AT_frame_base which is not defined.
  47 if [runto func_nofb] {
  48     gdb_test "p func_nofb_var" {Could not find the frame base for "func_nofb".} "func_nofb print"
  49     gdb_test "bt full" " in main .* main_var = 1" "func_nofb backtrace"
  50 }
  51
  52 # GDB could have crashed.
  53 clean_restart $executable
  54
  55 # And now try referencing DW_AT_frame_base defined using a self-reference
  56 # (DW_OP_fbreg).
  57 if [runto func_loopfb] {
  58     gdb_test "p func_loopfb_var" "DWARF-2 expression error: Loop detected .*" "func_loopfb print"
  59     gdb_test "bt full" " in main .* main_var = 1" "func_loopfb backtrace"
  60 }