gdb/testsuite/gdb.trace/signal.c

   1 /* This testcase is part of GDB, the GNU debugger.
   2
   3    Copyright 2016-2020 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 #include <signal.h>
  19 #include <string.h>
  20 #include <unistd.h>
  21
  22 static int counter = 0;
  23
  24 static void
  25 handler (int sig)
  26 {
  27   counter++;
  28 }
  29
  30 static int iterations = 3;
  31
  32 static void
  33 start (int pid)
  34 {
  35   int i;
  36
  37   for (i = 0; i < iterations; i++)
  38     {
  39       kill (pid, SIGABRT);
  40     }
  41 }
  42
  43 static void
  44 end (void)
  45 {}
  46
  47 int
  48 main (void)
  49 {
  50   struct sigaction act;
  51   int i;
  52
  53   memset (&act, 0, sizeof act);
  54   act.sa_handler = handler;
  55   act.sa_flags = SA_NODEFER;
  56   sigaction (SIGABRT, &act, NULL);
  57
  58   for (i = 0; i < 3; i++)
  59     {
  60       kill (getpid (), SIGABRT);
  61     }
  62
  63   counter = 0;
  64   start (getpid ());
  65
  66   end ();
  67   return 0;
  68 }