V9/include/signal.h
#ifndef NSIG
#define NSIG 32
#define SIGHUP 1 /* hangup */
#define SIGINT 2 /* interrupt */
#define SIGQUIT 3 /* quit */
#define SIGILL 4 /* illegal instruction (not reset when caught) */
#ifdef mc68000
#define ILL_ILLINSTR_FAULT 0x10 /* illegal instruction fault */
#define ILL_PRIVVIO_FAULT 0x20 /* privilege violation fault */
#define ILL_COPROCERR_FAULT 0x34 /* [coprocesser protocol error fault] */
#define ILL_TRAP1_FAULT 0x84 /* trap #1 fault */
#define ILL_TRAP2_FAULT 0x88 /* trap #2 fault */
#define ILL_TRAP3_FAULT 0x8c /* trap #3 fault */
#define ILL_TRAP4_FAULT 0x90 /* trap #4 fault */
#define ILL_TRAP5_FAULT 0x94 /* trap #5 fault */
#define ILL_TRAP6_FAULT 0x98 /* trap #6 fault */
#define ILL_TRAP7_FAULT 0x9c /* trap #7 fault */
#define ILL_TRAP8_FAULT 0xa0 /* trap #8 fault */
#define ILL_TRAP9_FAULT 0xa4 /* trap #9 fault */
#define ILL_TRAP10_FAULT 0xa8 /* trap #10 fault */
#define ILL_TRAP11_FAULT 0xac /* trap #11 fault */
#define ILL_TRAP12_FAULT 0xb0 /* trap #12 fault */
#define ILL_TRAP13_FAULT 0xb4 /* trap #13 fault */
#define ILL_TRAP14_FAULT 0xb8 /* trap #14 fault */
#endif mc68000
#define SIGTRAP 5 /* trace trap (not reset when caught) */
#define TRAP_BKPT 0x1 /* a breakpoint trap */
#define TRAP_TRACE 0x2 /* a trace trap */
#define SIGIOT 6 /* IOT instruction */
#define SIGEMT 7 /* EMT instruction */
#ifdef mc68000
#define EMT_EMU1010 0x28 /* line 1010 emulator trap */
#define EMT_EMU1111 0x2c /* line 1111 emulator trap */
#endif mc68000
#define SIGFPE 8 /* floating point exception */
#ifdef vax
#define K_INTOVF 1 /* integer overflow */
#define K_INTDIV 2 /* integer divide by zero */
#define K_FLTOVF 3 /* floating overflow */
#define K_FLTDIV 4 /* floating/decimal divide by zero */
#define K_FLTUND 5 /* floating underflow */
#define K_DECOVF 6 /* decimal overflow */
#define K_SUBRNG 7 /* subscript out of range */
#endif
#ifdef mc68000
#define FPE_INTDIV_TRAP 0x14 /* integer divide by zero */
#define FPE_CHKINST_TRAP 0x18 /* CHK [CHK2] instruction */
#define FPE_TRAPV_TRAP 0x1c /* TRAPV [cpTRAPcc TRAPcc] instr */
#define FPE_FLTBSUN_TRAP 0xc0 /* [branch or set on unordered cond] */
#define FPE_FLTINEX_TRAP 0xc4 /* [floating inexact result] */
#define FPE_FLTDIV_TRAP 0xc8 /* [floating divide by zero] */
#define FPE_FLTUND_TRAP 0xcc /* [floating underflow] */
#define FPE_FLTOPERR_TRAP 0xd0 /* [floating operand error] */
#define FPE_FLTOVF_TRAP 0xd4 /* [floating overflow] */
#define FPE_FLTNAN_TRAP 0xd8 /* [floating Not-A-Number] */
#endif mc68000
#define SIGKILL 9 /* kill (cannot be caught or ignored) */
#define SIGKIL 9
#define SIGBUS 10 /* bus error */
#define SIGSEGV 11 /* segmentation violation */
#define SIGSYS 12 /* bad argument to system call */
#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 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 for output if (tp->t_local<OSTOP) */
#define SIGTINT 23 /* to pgrp on every input character if LINTRUP */
#define SIGXCPU 24 /* exceeded CPU time limit */
#define SIGXFSZ 25 /* exceeded file size limit */
#ifndef KERNEL
typedef int (*SIG_TYP)();
SIG_TYP signal();
#endif
#define BADSIG (int (*)())-1
#define SIG_DFL (int (*)())0
#define SIG_IGN (int (*)())1
#ifdef KERNEL
#define SIG_CATCH (int (*)())2
#endif
#define SIG_HOLD (int (*)())3
#define SIGISDEFER(x) (((int)(x) & 1) != 0)
#define SIGUNDEFER(x) (int (*)())((int)(x) &~ 1)
#define DEFERSIG(x) (int (*)())((int)(x) | 1)
#define SIGNUMMASK 0377 /* to extract pure signal number */
#define SIGDOPAUSE 0400 /* do pause after setting action */
#define SIGDORTI 01000 /* do ret+rti after setting action */
#endif