sigaction13
int sigaction(int, const struct sigaction13 * __restrict,
struct sigaction13 * __restrict);
native_sigaction_to_sigaction13(const struct sigaction *sa, struct sigaction13 *osa)
struct sigaction13 nesa, oesa;
native_sigaction13_to_sigaction(const struct sigaction13 *osa, struct sigaction *sa)
void native_sigaction13_to_sigaction(const struct sigaction13 *,
struct sigaction13 *);
syscallarg(const struct sigaction13 *) nsa;
syscallarg(struct sigaction13 *) osa;