/usr/include/sys/signal.h


/*
 * System defined signals.
 */
#define SIGHUP          1       /* hangup */
#define SIGINT          2       /* interrupt */
#define SIGQUIT         3       /* quit */
#define SIGILL          4       /* illegal instr. (not reset when caught) */
#ifndef _POSIX_SOURCE
#define SIGTRAP         5       /* trace trap (not reset when caught) */
#endif
#define SIGABRT         6       /* abort() */
#ifndef _POSIX_SOURCE
#define SIGIOT          SIGABRT /* compatibility */
#define SIGEMT          7       /* EMT instruction */
#endif
#define SIGFPE          8       /* floating point exception */
#define SIGKILL         9       /* kill (cannot be caught or ignored) */
#ifndef _POSIX_SOURCE
#define SIGBUS          10      /* bus error */
#endif
#define SIGSEGV         11      /* segmentation violation */
#ifndef _POSIX_SOURCE
#define SIGSYS          12      /* non-existent system call invoked */
#endif
#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 */
#ifndef _POSIX_SOURCE
#define SIGURG          16      /* urgent condition on IO channel */
#endif
#define SIGSTOP         17      /* sendable stop signal not from tty */
#define SIGTSTP         18      /* stop signal from tty */
#define SIGCONT         19      /* continue a stopped process */
#define SIGCHLD         20      /* to parent on child stop or exit */
#define SIGTTIN         21      /* to readers pgrp upon background tty read */
#define SIGTTOU         22      /* like TTIN if (tp->t_local<OSTOP) */
#ifndef _POSIX_SOURCE
#define SIGIO           23      /* input/output possible signal */
#define SIGXCPU         24      /* exceeded CPU time limit */
#define SIGXFSZ         25      /* exceeded file size limit */
#define SIGVTALRM       26      /* virtual time alarm */
#define SIGPROF         27      /* profiling time alarm */
#define SIGWINCH        28      /* window size changes */
#define SIGINFO         29      /* information request */
#endif
#define SIGUSR1         30      /* user defined signal 1 */
#define SIGUSR2         31      /* user defined signal 2 */