URL
https://opencores.org/ocsvn/openrisc_me/openrisc_me/trunk
Subversion Repositories openrisc_me
[/] [openrisc/] [trunk/] [gnu-src/] [gcc-4.5.1/] [gcc/] [testsuite/] [gcc.dg/] [cleanup-11.c] - Rev 298
Compare with Previous | Blame | View Log
/* { dg-do run { target hppa*-*-hpux* *-*-linux* powerpc*-*-darwin* *-*-darwin[912]* } } */ /* { dg-options "-fexceptions -fnon-call-exceptions -O2" } */ /* Verify that cleanups work with exception handling through realtime signal frames on alternate stack. */ #include <unwind.h> #include <stdlib.h> #include <signal.h> #include <unistd.h> #include <string.h> static _Unwind_Reason_Code force_unwind_stop (int version, _Unwind_Action actions, _Unwind_Exception_Class exc_class, struct _Unwind_Exception *exc_obj, struct _Unwind_Context *context, void *stop_parameter) { if (actions & _UA_END_OF_STACK) abort (); return _URC_NO_REASON; } static void force_unwind () { struct _Unwind_Exception *exc = malloc (sizeof (*exc)); memset (&exc->exception_class, 0, sizeof (exc->exception_class)); exc->exception_cleanup = 0; #ifndef __USING_SJLJ_EXCEPTIONS__ _Unwind_ForcedUnwind (exc, force_unwind_stop, 0); #else _Unwind_SjLj_ForcedUnwind (exc, force_unwind_stop, 0); #endif abort (); } int count; char *null; static void counter (void *p __attribute__((unused))) { ++count; } static void handler (void *p __attribute__((unused))) { if (count != 2) abort (); exit (0); } static int __attribute__((noinline)) fn5 () { char dummy __attribute__((cleanup (counter))); force_unwind (); return 0; } static void fn4 (int sig, siginfo_t *info, void *ctx) { char dummy __attribute__((cleanup (counter))); fn5 (); null = NULL; } static void fn3 () { abort (); } static int __attribute__((noinline)) fn2 () { *null = 0; fn3 (); return 0; } static int __attribute__((noinline)) fn1 () { stack_t ss; struct sigaction s; ss.ss_size = 4 * sysconf (_SC_PAGESIZE); if (ss.ss_size < SIGSTKSZ) ss.ss_size = SIGSTKSZ; ss.ss_sp = malloc (ss.ss_size); if (ss.ss_sp == NULL) exit (1); ss.ss_flags = 0; if (sigaltstack (&ss, NULL) < 0) exit (1); sigemptyset (&s.sa_mask); s.sa_sigaction = fn4; s.sa_flags = SA_RESETHAND | SA_ONSTACK | SA_SIGINFO; sigaction (SIGSEGV, &s, NULL); sigaction (SIGBUS, &s, NULL); fn2 (); return 0; } static int __attribute__((noinline)) fn0 () { char dummy __attribute__((cleanup (handler))); fn1 (); null = 0; return 0; } int main() { fn0 (); abort (); }