gdb/testsuite/gdb.base/exitsignal.exp

   1 # Copyright 2013-2014 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 # This test checks both $_exitcode and $_exitsignal variables.  The
  17 # purpose of this checking is to ensure that the variables are
  18 # mutually exclusive, i.e., that when $_exitsignal is set, $_exitcode
  19 # is not, and vice-versa.  This mutual exclusion happens because if an
  20 # inferior exited (either successfuly or not), it certainly was not
  21 # killed by a signal.  However, if it was killed by an uncaught
  22 # signal, then there is no way for it to have exited.
  23
  24 if { [target_info exists gdb,nosignals] } {
  25     verbose "Skipping exitsignal.exp because of nosignals."
  26     continue
  27 }
  28
  29 standard_testfile segv.c
  30
  31 if { [prepare_for_testing ${testfile}.exp ${testfile} ${srcfile}] } {
  32     return -1
  33 }
  34
  35 # Run to main
  36 if { ![runto_main] } {
  37     return -1
  38 }
  39
  40 # Print $_exitsignal.  It should be void now, because nothing
  41 # happened.
  42 gdb_test "print \$_exitsignal" " = void" \
  43     "\$_exitsignal is void before running"
  44
  45 # Just to guarantee, making sure that $_exitcode is also void.
  46 gdb_test "print \$_exitcode" " = void" \
  47     "\$_exitcode is void before running"
  48
  49 # Trigger SIGSEGV.
  50 gdb_test "continue" "Program received signal SIGSEGV.*" "trigger SIGSEGV"
  51
  52 # Continue until the end.
  53 gdb_test "continue" "Program terminated with signal SIGSEGV.*" \
  54     "program terminated with SIGSEGV"
  55
  56 # Now, print $_exitsignal again.  It should be 11 (SIGSEGV).
  57 gdb_test "print \$_exitsignal" " = 11" \
  58     "\$_exitsignal is 11 (SIGSEGV) after SIGSEGV."
  59
  60 # And $_exitcode should still be void, since the inferior died because
  61 # of a signal, and did not return.
  62 gdb_test "print \$_exitcode" " = void" \
  63     "\$_exitcode is still void after SIGSEGV"
  64
  65 # Re-run to main, i.e., restart the executable.
  66 rerun_to_main
  67
  68 # Print the $_exitsignal again.  Even in this normal scenario, it
  69 # should still contain the signal triggered in the other run.
  70 gdb_test "print \$_exitsignal" " = 11" \
  71     "\$_exitsignal is 11 (SIGSEGV) after restarting the inferior"
  72
  73 # And, again, print $_exitcode.
  74 gdb_test "print \$_exitcode" " = void" \
  75     "\$_exitcode is still void after restarting the inferior"
  76
  77 # Now we test the behaviour of $_exit{code,signal} during a normal
  78 # inferior execution.
  79 standard_testfile normal.c
  80
  81 if { [prepare_for_testing ${testfile}.exp ${testfile} ${srcfile}] } {
  82     return -1
  83 }
  84
  85 # Checking $_exitsignal and $_exitcode, both should be void before the
  86 # inferior is executed.
  87 gdb_test "print \$_exitsignal" " = void" \
  88     "\$_exitsignal is void before normal inferior is executed"
  89 gdb_test "print \$_exitcode" " = void" \
  90     "\$_exitcode is void before normal inferior is executed"
  91
  92 # Run the inferior until the end.
  93 if { ![runto_main] } {
  94     return -1
  95 }
  96
  97 gdb_continue_to_end
  98
  99 # Checking $_exitcode.  It should be 0.
 100 gdb_test "print \$_exitcode" " = 0" \
 101     "\$_exitcode is zero after normal inferior is executed"
 102
 103 # Checking $_exitsignal.  It should still be void, since the inferior
 104 # has not received any signal.
 105 gdb_test "print \$_exitsignal" " = void" \
 106     "\$_exitsignal is still void after normal inferior is executed"