ref: 34c14097cb90fb2deccc3f2ab41b79ca3d7a33d2
dir: /src/libc/arch/amd64/dragonfly/_sigaction.c/
#include <stddef.h>
#include <sys.h>
extern int _sigaction2(int sig,
struct sigaction *new, struct sigaction *old,
int siginfo[], int num);
int
_sigaction(int sig, struct sigaction *new, struct sigaction *old)
{
extern int _setcontext[];
return _sigaction2(sig, new, old, _setcontext, 2);
}