gomp-20050608-branch/gcc/testsuite/gcc.dg/torture/builtin-noret-1.c

   1 /* Test for builtin noreturn attributes.  */
   2 /* Origin: Joseph Myers <jsm28@cam.ac.uk> */
   3 /* { dg-options "-multiply_defined suppress" { target powerpc-*-darwin* } } */
   4 /* { dg-do link } */
   5 /* { dg-require-weak "" } */
   6
   7 extern void abort (void);
   8 extern void exit (int);
   9 extern void _exit (int);
  10 extern void _Exit (int);
  11
  12 extern void tabort (void);
  13 extern void texit (void);
  14 extern void t_exit (void);
  15 extern void t_Exit (void);
  16
  17 extern void link_failure (void);
  18
  19 /* Some libcs have _exit and/or _Exit, and won't allow it to be re-defined,
  20    so make it weak.  */
  21 #pragma weak _exit
  22 #pragma weak _Exit
  23
  24 int
  25 main (void)
  26 {
  27   volatile int i = 0;
  28   if (i)
  29     tabort ();
  30   if (i)
  31     texit ();
  32   if (i)
  33     t_exit ();
  34   if (i)
  35     t_Exit ();
  36   exit (0);
  37 }
  38
  39 void
  40 tabort (void)
  41 {
  42   abort ();
  43   link_failure ();
  44 }
  45
  46 void
  47 texit (void)
  48 {
  49   exit (1);
  50   link_failure ();
  51 }
  52
  53 void
  54 t_exit (void)
  55 {
  56   _exit (1);
  57   link_failure ();
  58 }
  59
  60 /* Some non-Unix libcs might not have _exit.  */
  61 void
  62 _exit (int i)
  63 {
  64   abort ();
  65 }
  66
  67 void
  68 t_Exit (void)
  69 {
  70   _Exit (1);
  71   link_failure ();
  72 }
  73
  74 /* Some libcs might not have _Exit.  */
  75 void
  76 _Exit (int i)
  77 {
  78   abort ();
  79 }