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

   1 # Copyright 2004-2014 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     global gdb_prompt
  34     global decimal
  35
  36     # the "at foo.c:36" output we get with -g.
  37     # the "in func" output we get without -g.
  38     gdb_expect {
  39         -re "Breakpoint \[0-9\]*, stop_here .*$gdb_prompt $" {
  40             return 1
  41         }
  42         -re "$gdb_prompt $" {
  43             fail "running to stop_here $ident"
  44             return 0
  45         }
  46         timeout {
  47             fail "running to stop_here $ident (timeout)"
  48             return 0
  49         }
  50     }
  51     return 1
  52 }
  53
  54 clean_restart ${binfile}
  55
  56 gdb_test "break stop_here if (var1 == 42)" \
  57     "Breakpoint.*at.* file .*$srcfile, line.*" \
  58     "setting conditional breakpoint on function"
  59 gdb_run_cmd
  60
  61 expect_to_stop_here "first time"
  62
  63 gdb_continue_to_end "breakpoint first time through"
  64
  65 # Now we recompile the executable, but without a variable named "var1", first
  66 # waiting to insure that even on fast machines, the file modification times
  67 # are distinct. This will force GDB to reload the file on the
  68 # next "run" command, causing an error when GDB tries to tries to reset
  69 # the breakpoint.
  70
  71 sleep 2
  72 if  { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug additional_flags=-DVARIABLE=var2}] != "" } {
  73
  74 # Complication: Since GDB generally holds an open file descriptor on the
  75 # executable at this point, there are some systems in which the
  76 # re-compilation will fail. In such cases, we'll consider the test
  77 # (vacuously) passed providing that re-running it succeeds as before.
  78
  79     gdb_run_cmd
  80     expect_to_stop_here "after re-compile fails"
  81     gdb_continue_to_end "after re-compile fails"
  82
  83 } else {
  84
  85     gdb_run_cmd
  86     gdb_expect {
  87         -re ".*$inferior_exited_re normally.*$gdb_prompt $" {
  88             pass "running with invalidated bpt condition after executable changes"
  89         }
  90         -re ".*Breakpoint .*,( 0x.* in)? (\[^ \]*)exit .*$gdb_prompt $" {
  91             pass "running with invalidated bpt condition after executable changes"
  92         }
  93         -re "$gdb_prompt $" {
  94             fail "running with invalidated bpt condition after executable changes"
  95         }
  96         timeout {
  97             fail "(timeout) running with invalidated bpt condition after executable changes"
  98         }
  99     }
 100
 101 }
 102
 103 set timeout $oldtimeout
 104 verbose "Timeout is now $timeout seconds" 2
 105 return 0