6 #include "pthread_impl.h"
8 #include "ksigaction.h"
10 void __restore(), __restore_rt();
12 static pthread_t dummy(void) { return 0; }
13 weak_alias(dummy, __pthread_self_def);
15 int __libc_sigaction(int sig, const struct sigaction *restrict sa, struct sigaction *restrict old)
17 struct k_sigaction ksa, ksa_old;
19 if ((uintptr_t)sa->sa_handler > 1UL)
21 ksa.handler = sa->sa_handler;
22 ksa.flags = sa->sa_flags | SA_RESTORER;
23 ksa.restorer = (sa->sa_flags & SA_SIGINFO) ? __restore_rt : __restore;
24 memcpy(&ksa.mask, &sa->sa_mask, sizeof ksa.mask);
26 if (syscall(SYS_rt_sigaction, sig, sa?&ksa:0, old?&ksa_old:0, sizeof ksa.mask))
29 old->sa_handler = ksa_old.handler;
30 old->sa_flags = ksa_old.flags;
31 memcpy(&old->sa_mask, &ksa_old.mask, sizeof ksa_old.mask);
36 int __sigaction(int sig, const struct sigaction *restrict sa, struct sigaction *restrict old)
42 return __libc_sigaction(sig, sa, old);
45 weak_alias(__sigaction, sigaction);