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   foo ();   /* Put a breakpoint on foo() and call it to see a dummy frame */
  15
  16
  17   have_a_very_merry_interrupt ();
  18 }
  19
  20 void
  21 foo (void)
  22 {
  23 }
  24
  25 void
  26 bar (void)
  27 {
  28   char *nuller = 0;
  29
  30   *nuller = 'a';      /* try to cause a segfault */
  31 }
  32
  33 void
  34 handler (int sig)
  35 {
  36   subroutine (sig);
  37 }
  38
  39 /* The first statement in subroutine () is a place for a breakpoint.
  40    Without it, the breakpoint is put on the while comparison and will
  41    be hit at each iteration. */
  42
  43 void
  44 subroutine (int in)
  45 {
  46   int count = in;
  47   while (count < 100)
  48     count++;
  49 }
  50
  51 void
  52 have_a_very_merry_interrupt (void)
  53 {
  54   signal (SIGALRM, handler);
  55   alarm (1);
  56   sleep (2);  /* We'll receive that signal while sleeping */
  57 }
  58