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

   1 # Copyright 2004, 2007-2012 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 set testfile "chng-syms"
  22 set srcfile ${testfile}.c
  23 set binfile ${objdir}/${subdir}/${testfile}
  24
  25 if  { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug additional_flags=-DVARIABLE=var1}] != "" } {
  26     untested chng-syms.exp
  27     return -1
  28 }
  29
  30 set oldtimeout $timeout
  31 set timeout 10
  32 verbose "Timeout is now 10 seconds" 2
  33
  34 proc expect_to_stop_here { ident } {
  35     global gdb_prompt
  36     global decimal
  37
  38     # the "at foo.c:36" output we get with -g.
  39     # the "in func" output we get without -g.
  40     gdb_expect {
  41         -re "Breakpoint \[0-9\]*, stop_here .*$gdb_prompt $" {
  42             return 1
  43         }
  44         -re "$gdb_prompt $" {
  45             fail "running to stop_here $ident"
  46             return 0
  47         }
  48         timeout {
  49             fail "running to stop_here $ident (timeout)"
  50             return 0
  51         }
  52     }
  53     return 1
  54 }
  55
  56 gdb_exit
  57 gdb_start
  58 gdb_reinitialize_dir $srcdir/$subdir
  59 gdb_load ${binfile}
  60
  61 gdb_test "break stop_here if (var1 == 42)" \
  62     "Breakpoint.*at.* file .*$srcfile, line.*" \
  63     "setting conditional breakpoint on function"
  64 gdb_run_cmd
  65
  66 expect_to_stop_here "first time"
  67
  68 gdb_continue_to_end "breakpoint first time through"
  69
  70 # Now we recompile the executable, but without a variable named "var1", first
  71 # waiting to insure that even on fast machines, the file modification times
  72 # are distinct. This will force GDB to reload the file on the
  73 # next "run" command, causing an error when GDB tries to tries to reset
  74 # the breakpoint.
  75
  76 sleep 2
  77 if  { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug additional_flags=-DVARIABLE=var2}] != "" } {
  78
  79 # Complication: Since GDB generally holds an open file descriptor on the
  80 # executable at this point, there are some systems in which the
  81 # re-compilation will fail. In such cases, we'll consider the test
  82 # (vacuously) passed providing that re-running it succeeds as before.
  83
  84     gdb_run_cmd
  85     expect_to_stop_here "after re-compile fails"
  86     gdb_continue_to_end "after re-compile fails"
  87
  88 } else {
  89
  90     gdb_run_cmd
  91     gdb_expect {
  92         -re ".*$inferior_exited_re normally.*$gdb_prompt $" {
  93             pass "running with invalidated bpt condition after executable changes"
  94         }
  95         -re ".*Breakpoint .*,( 0x.* in)? (\[^ \]*)exit .*$gdb_prompt $" {
  96             pass "running with invalidated bpt condition after executable changes"
  97         }
  98         -re "$gdb_prompt $" {
  99             fail "running with invalidated bpt condition after executable changes"
 100         }
 101         timeout {
 102             fail "(timeout) running with invalidated bpt condition after executable changes"
 103         }
 104     }
 105
 106 }
 107
 108 set timeout $oldtimeout
 109 verbose "Timeout is now $timeout seconds" 2
 110 return 0