1#define sa_sz 32
 2#define sa_flags 8
 3#define sa_handler 0
 4#define sa_mask_sz 8
 5#define SIGUSR1 10
 6#define SIGUSR2 12
 7#define SIGTERM 15
 8#define SIGINT 2
 9#define SIGABRT 6
10#define SA_NODEFER 1073741824
11#define SA_SIGINFO 4
12#define ucontext_regs 184