#define SIGHUP 1 /* hangup */
#define SIGINT 2 /* interrupt (DEL) */
#define SIGQUIT 3 /* quit (ASCII FS) */
#define SIGILL 4 /* illegal instruction */
#define SIGTRAP 5 /* trace trap (not reset when caught) */
#define SIGABRT 6 /* IOT instruction */
#define SIGIOT 6 /* SIGABRT for people who speak PDP-11 */
#define SIGUNUSED 7 /* spare code */
#define SIGFPE 8 /* floating point exception */
#define SIGKILL 9 /* kill (cannot be caught or ignored) */
#define SIGUSR1 10 /* user defined signal # 1 */
#define SIGSEGV 11 /* segmentation violation */
#define SIGUSR2 12 /* user defined signal # 2 */
#define SIGPIPE 13 /* write on a pipe with no one to read it */
#define SIGALRM 14 /* alarm clock */
#define SIGTERM 15 /* software termination signal from kill */
#define SIGCHLD 17 /* child process terminated or stopped */
#define SIGEMT 7 /* obsolete */
#define SIGBUS 10 /* obsolete */