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[/] [openrisc/] [trunk/] [gnu-old/] [gcc-4.2.2/] [gcc/] [testsuite/] [gcc.dg/] [cleanup-10.c] - Blame information for rev 149

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Line No. Rev Author Line
1 149 jeremybenn
/* { dg-do run { target hppa*-*-hpux* *-*-linux* powerpc*-*-darwin* } } */
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/* { dg-options "-fexceptions -fnon-call-exceptions -O2" } */
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/* Verify that cleanups work with exception handling through signal frames
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   on alternate stack.  */
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#include <unwind.h>
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#include <stdlib.h>
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#include <signal.h>
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#include <unistd.h>
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#include <string.h>
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static _Unwind_Reason_Code
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force_unwind_stop (int version, _Unwind_Action actions,
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                   _Unwind_Exception_Class exc_class,
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                   struct _Unwind_Exception *exc_obj,
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                   struct _Unwind_Context *context,
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                   void *stop_parameter)
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{
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  if (actions & _UA_END_OF_STACK)
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    abort ();
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  return _URC_NO_REASON;
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}
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static void force_unwind ()
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{
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  struct _Unwind_Exception *exc = malloc (sizeof (*exc));
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  memset (&exc->exception_class, 0, sizeof (exc->exception_class));
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  exc->exception_cleanup = 0;
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#ifndef __USING_SJLJ_EXCEPTIONS__
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  _Unwind_ForcedUnwind (exc, force_unwind_stop, 0);
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#else
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  _Unwind_SjLj_ForcedUnwind (exc, force_unwind_stop, 0);
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#endif
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  abort ();
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}
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int count;
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char *null;
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static void counter (void *p __attribute__((unused)))
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{
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  ++count;
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}
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static void handler (void *p __attribute__((unused)))
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{
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  if (count != 2)
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    abort ();
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  exit (0);
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}
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static int __attribute__((noinline)) fn5 ()
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{
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  char dummy __attribute__((cleanup (counter)));
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  force_unwind ();
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  return 0;
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}
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static void fn4 (int sig, siginfo_t *info, void *ctx)
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{
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  char dummy __attribute__((cleanup (counter)));
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  fn5 ();
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  null = NULL;
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}
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static void fn3 ()
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{
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  abort ();
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}
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static int __attribute__((noinline)) fn2 ()
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{
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  *null = 0;
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  fn3 ();
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  return 0;
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}
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static int __attribute__((noinline)) fn1 ()
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{
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  stack_t ss;
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  struct sigaction s;
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  ss.ss_size = 4 * sysconf (_SC_PAGESIZE);
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  if (ss.ss_size < SIGSTKSZ)
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    ss.ss_size = SIGSTKSZ;
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  ss.ss_sp = malloc (ss.ss_size);
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  if (ss.ss_sp == NULL)
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    exit (1);
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  ss.ss_flags = 0;
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  if (sigaltstack (&ss, NULL) < 0)
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    exit (1);
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  sigemptyset (&s.sa_mask);
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  s.sa_sigaction = fn4;
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  s.sa_flags = SA_RESETHAND | SA_ONSTACK;
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  sigaction (SIGSEGV, &s, NULL);
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  sigaction (SIGBUS, &s, NULL);
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  fn2 ();
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  return 0;
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}
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static int __attribute__((noinline)) fn0 ()
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{
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  char dummy __attribute__((cleanup (handler)));
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  fn1 ();
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  null = 0;
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  return 0;
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}
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int main()
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{
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  fn0 ();
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  abort ();
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}

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