int __libc_sigaction(int sig, const struct sigaction *sa, struct sigaction *old)
{
struct {
void *handler;
unsigned long flags;
void (*restorer)(void);
sigset_t mask;
} ksa, kold;
long pksa=0, pkold=0;
if (sa) {
ksa.handler = sa->sa_handler;
ksa.flags = sa->sa_flags | SA_RESTORER;
ksa.restorer = (sa->sa_flags & SA_SIGINFO) ? __restore_rt : __restore;
ksa.mask = sa->sa_mask;
pksa = (long)&ksa;
}
if (old) pkold = (long)&kold;
__pthread_self_def();
if (syscall(SYS_rt_sigaction, sig, pksa, pkold, 8))
return -1;
if (old) {
old->sa_handler = kold.handler;
old->sa_flags = kold.flags;
old->sa_mask = kold.mask;
}
return 0;
}
void *__install_initial_tls(void *p)
{
main_thread = p;
return __pthread_self_def();
}
