static void
check_stack_overflow(const void *addr)
{
int ruby_stack_overflowed_p(const rb_thread_t *, const void *);
rb_thread_t *th = ruby_current_thread;
if (ruby_stack_overflowed_p(th, addr)) {
ruby_thread_stack_overflow(th);
}
}
static void
check_stack_overflow(const void *addr)
{
int ruby_stack_overflowed_p(const rb_thread_t *, const void *);
NORETURN(void ruby_thread_stack_overflow(rb_thread_t *th));
rb_thread_t *th = GET_THREAD();
if (ruby_stack_overflowed_p(th, addr)) {
ruby_thread_stack_overflow(th);
}
}
static RETSIGTYPE
sigbus(int sig SIGINFO_ARG)
{
/*
* Mac OS X makes KERN_PROTECTION_FAILURE when thread touch guard page.
* and it's delivered as SIGBUS instaed of SIGSEGV to userland. It's crazy
* wrong IMHO. but anyway we have to care it. Sigh.
*/
#if defined __MACH__ && defined __APPLE__ && defined USE_SIGALTSTACK
int ruby_stack_overflowed_p(const rb_thread_t *, const void *);
NORETURN(void ruby_thread_stack_overflow(rb_thread_t *th));
rb_thread_t *th = GET_THREAD();
if (ruby_stack_overflowed_p(th, info->si_addr)) {
ruby_thread_stack_overflow(th);
}
#endif
rb_bug("Bus Error");
}
static RETSIGTYPE
sigsegv(int sig SIGINFO_ARG)
{
#ifdef USE_SIGALTSTACK
int ruby_stack_overflowed_p(const rb_thread_t *, const void *);
NORETURN(void ruby_thread_stack_overflow(rb_thread_t *th));
rb_thread_t *th = GET_THREAD();
if (ruby_stack_overflowed_p(th, info->si_addr)) {
ruby_thread_stack_overflow(th);
}
#endif
if (segv_received) {
fprintf(stderr, "SEGV received in SEGV handler\n");
exit(EXIT_FAILURE);
}
else {
extern int ruby_disable_gc_stress;
segv_received = 1;
ruby_disable_gc_stress = 1;
rb_bug("Segmentation fault");
}
}
