gdb/testsuite/gdb.dwarf2/cu-no-addrs.exp

   1 # Copyright (C) 2022-2023 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 # Regression test for the situation where aranges covers an address
  17 # but the CU does not.
  18
  19 load_lib "dwarf.exp"
  20
  21 # This test can only be run on targets which support DWARF-2 and use gas.
  22 if {![dwarf2_support]} {
  23     return 0
  24 }
  25
  26 standard_testfile main.c cu-no-addrs.S
  27
  28 lassign [function_range main ${srcdir}/${subdir}/${srcfile}] \
  29     main_start main_length
  30
  31 # Make some DWARF for the test.
  32 set asm_file [standard_output_file $srcfile2]
  33 Dwarf::assemble $asm_file {
  34     global main_start main_length
  35
  36     cu {label cu_start} {
  37         # The PC range here is intentionally empty -- this was the
  38         # trigger for the bug.
  39         compile_unit {
  40             {language @DW_LANG_C}
  41             {DW_AT_low_pc $main_start DW_FORM_addr}
  42             {DW_AT_high_pc $main_start DW_FORM_addr}
  43         } {
  44             DW_TAG_subprogram {
  45                 {DW_AT_name "main"}
  46                 {DW_AT_low_pc $main_start DW_FORM_addr}
  47             }
  48         }
  49     }
  50
  51     aranges {} cu_start {
  52         arange {} $main_start $main_length
  53     }
  54 }
  55
  56 if {[prepare_for_testing "failed to prepare" ${testfile} \
  57          [list $srcfile $asm_file] {nodebug}]} {
  58     return -1
  59 }
  60
  61 gdb_test "break *$main_start" ".*Breakpoint $decimal at $hex" \
  62     "set breakpoint at main address"