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

   1 /* This testcase is part of GDB, the GNU debugger.
   2
   3    Copyright 2008, 2010, 2011 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 #ifdef SIGABRT
  35   kill (getpid (), SIGABRT);
  36 #endif
  37   /* If we get here we couldn't generate a signal, tell dejagnu.  */
  38   printf ("no signal\n");
  39 }
  40
  41 /* Easy place to set a breakpoint.  */
  42
  43 void
  44 stop_one ()
  45 {
  46 }
  47
  48 void
  49 stop_two ()
  50 {
  51 }
  52
  53 void
  54 null_hand_call ()
  55 {
  56 }
  57
  58 int
  59 main ()
  60 {
  61 #ifdef usestubs
  62   set_debug_traps ();
  63   breakpoint ();
  64 #endif
  65
  66 #ifdef SIG_SETMASK
  67   /* Ensure all the signals aren't blocked.
  68      The environment in which the testsuite is run may have blocked some
  69      for whatever reason.  */
  70   {
  71     sigset_t newset;
  72     sigemptyset (&newset);
  73     sigprocmask (SIG_SETMASK, &newset, NULL);
  74   }
  75 #endif
  76
  77   signal (SIGABRT, handle_signal);
  78
  79   /* Stop here so we can hand-call gen_signal.  */
  80   stop_one ();
  81
  82   /* When we're resumed stop here.  */
  83   stop_two ();
  84
  85   /* When we're resumed we generate a signal ourselves.  */
  86   gen_signal ();
  87
  88   return 0;
  89 }