gdb/testsuite/gdb.base/dmsym.exp

   1 # Copyright (C) 2011-2019 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 set testfile dmsym_main
  17
  18 # Build dmsym_main using two C files:
  19 #   - dmsym.c, which needs to be built without debug info;
  20 #   - dmsym_main.c, which needs to be build with debug info.
  21 # This is why we use gdb_compile instead of relying on the usual
  22 # call to prepare_for_testing.
  23
  24 set dmsym_o [standard_output_file dmsym.o]
  25
  26 if {[gdb_compile "${srcdir}/${subdir}/dmsym.c" \
  27                  $dmsym_o \
  28                  object {}] != ""} {
  29   untested "failed to compile object file"
  30   return -1
  31 }
  32
  33 if {[gdb_compile \
  34       [list ${srcdir}/${subdir}/dmsym_main.c $dmsym_o] \
  35       [standard_output_file ${testfile}] \
  36       executable {debug}] != ""} {
  37     untested "failed to compile"
  38     return -1
  39 }
  40
  41 clean_restart ${testfile}
  42
  43 # Some convenient regular expressions...
  44 set num "\[0-9\]+"
  45 set addr "0x\[0-9a-zA-Z\]+"
  46
  47 # Verify that setting a breakpoint on `test_minsym' only results in
  48 # one location found.  A mistake would be to also insert a breakpoint
  49 # in the test_minsym data symbol in dmsym.c.  Despite the fact that
  50 # there is no debugging info available, this is a data symbol and thus
  51 # should not be used for breakpoint purposes.
  52
  53 gdb_test "break test_minsym" \
  54          "Breakpoint $num at $addr.: file .*dmsym_main\\.c, line $num\\."
  55
  56 # However, verify that the `info line' command, on the other hand,
  57 # finds both locations.
  58
  59 gdb_test "info line test_minsym" \
  60          "Line $num of \".*dmsym_main\\.c\" .*\r\nNo line number information available for address $addr <test_minsym>"
  61
  62 # Now, run the program until we get past the call to test_minsym.
  63 # Except when using hardware breakpoints, inferior behavior is going
  64 # to be affected if a breakpoint was incorrectly inserted at
  65 # test_minsym.
  66
  67 gdb_breakpoint dmsym_main.c:[gdb_get_line_number "BREAK" dmsym_main.c]
  68
  69 gdb_run_cmd
  70 gdb_test "" \
  71          "Breakpoint $num, test_minsym \\(\\) at.*" \
  72          "run until breakpoint at BREAK"
  73
  74 gdb_test "continue" \
  75          "Breakpoint $num, main \\(\\) at.*"
  76
  77 gdb_test "print val" \
  78          " = 124"