gdb/testsuite/gdb.mi/mi-syn-frame.c

   1 #include <signal.h>
   2 #include <unistd.h>
   3 #include <stdlib.h>
   4
   5 void foo (void);
   6 void bar (void);
   7
   8 void subroutine (int);
   9 void handler (int);
  10 void have_a_very_merry_interrupt (void);
  11
  12 main ()
  13 {
  14   puts ("Starting up");
  15
  16   foo ();   /* Put a breakpoint on foo() and call it to see a dummy frame */
  17
  18
  19   have_a_very_merry_interrupt ();
  20
  21   puts ("Shutting down");
  22 }
  23
  24 void
  25 foo (void)
  26 {
  27   puts ("hi in foo");
  28 }
  29
  30 void
  31 bar (void)
  32 {
  33   char *nuller = 0;
  34
  35   puts ("hi in bar");
  36
  37   *nuller = 'a';      /* try to cause a segfault */
  38 }
  39
  40 void
  41 handler (int sig)
  42 {
  43   subroutine (sig);
  44 }
  45
  46 /* The first statement in subroutine () is a place for a breakpoint.
  47    Without it, the breakpoint is put on the while comparison and will
  48    be hit at each iteration. */
  49
  50 void
  51 subroutine (int in)
  52 {
  53   int count = in;
  54   while (count < 100)
  55     count++;
  56 }
  57
  58 void
  59 have_a_very_merry_interrupt (void)
  60 {
  61   puts ("Waiting to get a signal");
  62   signal (SIGALRM, handler);
  63   alarm (1);
  64   sleep (2);  /* We'll receive that signal while sleeping */
  65 }
  66