gnu/dist/gdb6/gdb/testsuite/gdb.base/signals.c

   1 /* Test GDB dealing with stuff like stepping into sigtramp.  */
   2
   3 #include <signal.h>
   4 #include <unistd.h>
   5
   6 #ifdef __sh__
   7 #define signal(a,b)     /* Signals not supported on this target - make them go away */
   8 #define alarm(a)        /* Ditto for alarm() */
   9 #endif
  10
  11 static int count = 0;
  12
  13 #ifdef PROTOTYPES
  14 static void
  15 handler (int sig)
  16 #else
  17 static void
  18 handler (sig)
  19      int sig;
  20 #endif
  21 {
  22   signal (sig, handler);
  23   ++count;
  24 }
  25
  26 static void
  27 func1 ()
  28 {
  29   ++count;
  30 }
  31
  32 static void
  33 func2 ()
  34 {
  35   ++count;
  36 }
  37
  38 int
  39 main ()
  40 {
  41 #ifdef usestubs
  42   set_debug_traps();
  43   breakpoint();
  44 #endif
  45 #ifdef SIGALRM
  46   signal (SIGALRM, handler);
  47 #endif
  48 #ifdef SIGUSR1
  49   signal (SIGUSR1, handler);
  50 #endif
  51   alarm (1);
  52   ++count; /* first */
  53   alarm (1);
  54   ++count; /* second */
  55   func1 ();
  56   alarm (1);
  57   func2 ();
  58   return count;
  59 }