gdb/testsuite/gdb.base/chng-syms.exp

   1 # Copyright 2004-2016 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 # Author: Paul N. Hilfinger (Hilfinger@gnat.com)
  17
  18 # Test that GDB cleans up properly after errors that result when a
  19 # breakpoint is reset.
  20
  21 standard_testfile .c
  22
  23 if  { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug additional_flags=-DVARIABLE=var1}] != "" } {
  24     untested chng-syms.exp
  25     return -1
  26 }
  27
  28 set oldtimeout $timeout
  29 set timeout 10
  30 verbose "Timeout is now 10 seconds" 2
  31
  32 proc expect_to_stop_here { ident } {
  33     # the "at foo.c:36" output we get with -g.
  34     # the "in func" output we get without -g.
  35
  36     gdb_test "" "Breakpoint \[0-9\]*, stop_here .*" "running to stop_here $ident"
  37 }
  38
  39 clean_restart ${binfile}
  40
  41 gdb_test "break stop_here if (var1 == 42)" \
  42     "Breakpoint.*at.* file .*$srcfile, line.*" \
  43     "setting conditional breakpoint on function"
  44 gdb_run_cmd
  45
  46 expect_to_stop_here "first time"
  47
  48 gdb_continue_to_end "breakpoint first time through"
  49
  50 # Now we recompile the executable, but without a variable named "var1", first
  51 # waiting to insure that even on fast machines, the file modification times
  52 # are distinct. This will force GDB to reload the file on the
  53 # next "run" command, causing an error when GDB tries to tries to reset
  54 # the breakpoint.
  55
  56 sleep 2
  57 if  { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug additional_flags=-DVARIABLE=var2}] != "" } {
  58
  59 # Complication: Since GDB generally holds an open file descriptor on the
  60 # executable at this point, there are some systems in which the
  61 # re-compilation will fail. In such cases, we'll consider the test
  62 # (vacuously) passed providing that re-running it succeeds as before.
  63
  64     gdb_run_cmd
  65     expect_to_stop_here "after re-compile fails"
  66     gdb_continue_to_end "after re-compile fails"
  67
  68 } else {
  69
  70     gdb_run_cmd
  71
  72     set test "running with invalidated bpt condition after executable changes"
  73     gdb_test_multiple "" $test {
  74         -re ".*$inferior_exited_re normally.*$gdb_prompt $" {
  75             pass $test
  76         }
  77         -re ".*Breakpoint .*,( 0x.* in)? (\[^ \]*)exit .*$gdb_prompt $" {
  78             pass $test
  79         }
  80     }
  81
  82 }
  83
  84 set timeout $oldtimeout
  85 verbose "Timeout is now $timeout seconds" 2
  86 return 0