gdb/testsuite/gdb.base/call-signals.c

   1 /* This testcase is part of GDB, the GNU debugger.
   2
   3    Copyright 2008-2015 Free Software Foundation, Inc.
   4
   5    This program is free software; you can redistribute it and/or modify
   6    it under the terms of the GNU General Public License as published by
   7    the Free Software Foundation; either version 3 of the License, or
   8    (at your option) any later version.
   9
  10    This program is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13    GNU General Public License for more details.
  14
  15    You should have received a copy of the GNU General Public License
  16    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  17
  18 /* Support program for testing handling of inferior function calls
  19    in the presence of signals.  */
  20
  21 #include <stdio.h>
  22 #include <signal.h>
  23 #include <unistd.h>
  24
  25 void
  26 handle_signal (int sig)
  27 {
  28 }
  29
  30 void
  31 gen_signal ()
  32 {
  33   /* According to sigall.exp, SIGABRT is always supported.  */
  34   kill (getpid (), SIGABRT);
  35   /* If we get here we couldn't generate a signal, tell dejagnu.  */
  36   printf ("no signal\n");
  37 }
  38
  39 /* Easy place to set a breakpoint.  */
  40
  41 void
  42 stop_one ()
  43 {
  44 }
  45
  46 void
  47 stop_two ()
  48 {
  49 }
  50
  51 void
  52 null_hand_call ()
  53 {
  54 }
  55
  56 int
  57 main ()
  58 {
  59 #ifdef SIG_SETMASK
  60   /* Ensure all the signals aren't blocked.
  61      The environment in which the testsuite is run may have blocked some
  62      for whatever reason.  */
  63   {
  64     sigset_t newset;
  65     sigemptyset (&newset);
  66     sigprocmask (SIG_SETMASK, &newset, NULL);
  67   }
  68 #endif
  69
  70   signal (SIGABRT, handle_signal);
  71
  72   /* Stop here so we can hand-call gen_signal.  */
  73   stop_one ();
  74
  75   /* When we're resumed stop here.  */
  76   stop_two ();
  77
  78   /* When we're resumed we generate a signal ourselves.  */
  79   gen_signal ();
  80
  81   return 0;
  82 }