/* @(#)signal.h 1.2 86/10/07 SMI; from UCB 6.7 85/06/08 */ /* * Copyright (c) 1982 Regents of the University of California. * All rights reserved. The Berkeley software License Agreement * specifies the terms and conditions for redistribution. */ /* * Copyright (c) 1986 by Sun Microsystems, Inc. */ #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 vax #define ILL_RESAD_FAULT 0x0 /* reserved addressing fault */ #define ILL_PRIVIN_FAULT 0x1 /* privileged instruction fault */ #define ILL_RESOP_FAULT 0x2 /* reserved operand fault */ /* CHME, CHMS, CHMU are not yet given back to users reasonably */ #endif vax #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 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 FPE_INTOVF_TRAP 0x1 /* integer overflow */ #define FPE_INTDIV_TRAP 0x2 /* integer divide by zero */ #define FPE_FLTOVF_TRAP 0x3 /* floating overflow */ #define FPE_FLTDIV_TRAP 0x4 /* floating/decimal divide by zero */ #define FPE_FLTUND_TRAP 0x5 /* floating underflow */ #define FPE_DECOVF_TRAP 0x6 /* decimal overflow */ #define FPE_SUBRNG_TRAP 0x7 /* subscript out of range */ #define FPE_FLTOVF_FAULT 0x8 /* floating overflow fault */ #define FPE_FLTDIV_FAULT 0x9 /* divide by zero floating fault */ #define FPE_FLTUND_FAULT 0xa /* floating underflow fault */ #endif vax #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] */ #ifdef sun #define FPE_FPA_ENABLE 0x400 /* [FPA not enabled] */ #define FPE_FPA_ERROR 0x404 /* [FPA arithmetic exception] */ #endif sun #endif mc68000 #define SIGKILL 9 /* kill (cannot be caught or ignored) */ #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 SIGURG 16 /* urgent condition on IO channel */ #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 SIGCLD 20 /* System V name for SIGCHLD */ #define SIGTTIN 21 /* to readers pgrp upon background tty read */ #define SIGTTOU 22 /* like TTIN for output if (tp->t_local<OSTOP) */ #define SIGIO 23 /* input/output possible signal */ #define SIGPOLL SIGIO /* System V name for SIGIO */ #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 changed */ #define SIGLOST 29 /* resource lost (eg, record-lock lost) */ #define SIGUSR1 30 /* user defined signal 1 */ #define SIGUSR2 31 /* user defined signal 2 */ #ifndef KERNEL int (*signal())(); #endif !KERNEL #ifndef LOCORE /* * Signal vector "template" used in sigvec call. */ struct sigvec { int (*sv_handler)(); /* signal handler */ int sv_mask; /* signal mask to apply */ int sv_flags; /* see signal options below */ }; #define SV_ONSTACK 0x0001 /* take signal on signal stack */ #define SV_INTERRUPT 0x0002 /* do not restart system on signal return */ #define SV_RESETHAND 0x0004 /* reset signal handler to SIG_DFL when signal taken */ #define sv_onstack sv_flags /* isn't compatibility wonderful! */ /* * Structure used in sigstack call. */ struct sigstack { char *ss_sp; /* signal stack pointer */ int ss_onstack; /* current status */ }; /* * Information pushed on stack when a signal is delivered. * This is used by the kernel to restore state following * execution of the signal handler. It is also made available * to the handler to allow it to properly restore state if * a non-standard exit is performed. */ struct sigcontext { int sc_onstack; /* sigstack state to restore */ int sc_mask; /* signal mask to restore */ int sc_sp; /* sp to restore */ int sc_pc; /* pc to retore */ int sc_ps; /* psl to restore */ }; #endif !LOCORE #define BADSIG (int (*)())-1 #define SIG_DFL (int (*)())0 #define SIG_IGN (int (*)())1 #ifdef KERNEL #define SIG_CATCH (int (*)())2 #define SIG_HOLD (int (*)())3 #endif KERNEL #endif !NSIG /* * Macro for converting signal number to a mask suitable for sigblock(). */ #define sigmask(m) (1 << ((m)-1))