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ds3100.md
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ultrixSignal.h
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C/C++ Source or Header
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1989-10-26
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9KB
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218 lines
/* @(#)signal.h 4.1.1.4 (ULTRIX) 11/9/88 */
/************************************************************************
* *
* Copyright (c) 1987 by *
* Digital Equipment Corporation, Maynard, MA *
* All rights reserved. *
* *
* This software is furnished under a license and may be used and *
* copied only in accordance with the terms of such license and *
* with the inclusion of the above copyright notice. This *
* software or any other copies thereof may not be provided or *
* otherwise made available to any other person. No title to and *
* ownership of the software is hereby transferred. *
* *
* This software is derived from software received from the *
* University of California, Berkeley, and from Bell *
* Laboratories. Use, duplication, or disclosure is subject to *
* restrictions under license agreements with University of *
* California and with AT&T. *
* *
* The information in this software is subject to change without *
* notice and should not be construed as a commitment by Digital *
* Equipment Corporation. *
* *
* Digital assumes no responsibility for the use or reliability *
* of its software on equipment which is not supplied by Digital. *
* *
************************************************************************/
/************************************************************************
* Modification History *
* *
* Mark Parenti 2/06/88 *
* Change SA_CLDSTOP to SA_NOCLDSTOP per POSIX change *
* Fred Glover 1/12/88 *
* Add SIGLOST - server crash Sys-V lock notification *
* *
* Larry Cohen 10/1/85 *
* Add SIGWINCH - window change signal *
* *
* Greg Depp 25 Jun 85 *
* Moved SIGUSR1 and SIGUSR2 to 30 and 31 to conform with Berkeley *
* *
* David L Ballenger, 28-Mar-1985 *
* 0001 Add definitions for System V compatibility *
* *
************************************************************************/
#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) */
#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 */
#define SIGTRAP 5 /* trace trap (not reset when caught) */
#define SIGIOT 6 /* IOT instruction */
#define SIGEMT 7 /* EMT instruction */
#define SIGFPE 8 /* floating point exception */
#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 */
#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 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 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 SIGLOST 29 /* Sys-V rec lock: notify user upon server crash */
#define SIGUSR1 30 /* User signal 1 (from SysV) */
#define SIGUSR2 31 /* User signal 2 (from SysV) */
/* Add System V signal definitions (DLB001) */
#define SIGCLD SIGCHLD /* System V name for SIGCHLD */
#define SIGABRT SIGIOT /* Added from BRL package for /usr/group. Signal
* returned by abort(3C). Map onto SIGIOT.
*/
/*
* Codes for the mips break instruction.
*/
#define BRK_USERBP 0 /* user bp (used by debuggers) */
#define BRK_KERNELBP 1 /* kernel bp (used by prom) */
#define BRK_ABORT 2 /* no longer used */
#define BRK_BD_TAKEN 3 /* for taken bd emulation */
#define BRK_BD_NOTTAKEN 4 /* for not taken bd emulation */
#define BRK_SSTEPBP 5 /* user bp (used by debuggers) */
#define BRK_OVERFLOW 6 /* overflow check */
#define BRK_DIVZERO 7 /* divide by zero check */
#define BRK_RANGE 8 /* range error check */
/* reserve 9 for ada stuff per himel */
#if defined(vax) || (defined(mips) && defined(LANGUAGE_C))
#ifndef SYSTEM_FIVE
#define sigset_t int /* type used for sigsetops() functions */
/*
* Signal vector "template" used in sigvec call.
*/
struct sigvec {
void (*sv_handler)(); /* signal handler */
sigset_t sv_mask; /* signal mask to apply */
int sv_flags; /* see signal options below */
};
/*
* The following structure must be exactly the same as the above structure
* with the names changed for POSIX compliance.
*/
struct sigaction {
void (*sa_handler)(); /* signal handler */
sigset_t sa_mask; /* signal mask to apply */
int sa_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 SA_NOCLDSTOP 0x0004 /* Don't generate SIGCLD when children stop */
#define SV_OLDSIG 0x1000 /* Emulate old signal() for POSIX */
#define sv_onstack sv_flags /* isn't compatibility wonderful! */
/* Defines for sigprocmask() call. POSIX.
*/
#define SIG_BLOCK 1 /* Add these signals to block mask */
#define SIG_UNBLOCK 2 /* Remove these signals from block mask */
#define SIG_SETMASK 3 /* Set block mask to this mask */
/*
* 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.
*
* WARNING: THE sigcontext MUST BE KEPT CONSISTENT WITH /usr/include/setjmp.h
* AND THE LIBC ROUTINES setjmp() AND longjmp()
*/
struct sigcontext {
int sc_onstack; /* sigstack state to restore */
int sc_mask; /* signal mask to restore */
int sc_pc; /* pc at time of signal */
/*
* General purpose registers
*/
int sc_regs[32]; /* processor regs 0 to 31 */
int sc_mdlo; /* mul/div low */
int sc_mdhi; /* mul/div high */
/*
* Floating point coprocessor state
*/
int sc_ownedfp; /* fp has been used */
int sc_fpregs[32]; /* fp regs 0 to 31 */
int sc_fpc_csr; /* floating point control and status reg */
int sc_fpc_eir; /* floating point exception instruction reg */
/*
* END OF REGION THAT MUST AGREE WITH setjmp.h
* END OF jmp_buf REGION
*/
/*
* System coprocessor registers at time of signal
*/
int sc_cause; /* cp0 cause register */
int sc_badvaddr; /* cp0 bad virtual address */
int sc_badpaddr; /* cpu bd bad physical address */
};
#endif SYSTEM_FIVE
#define BADSIG ((void (*)())(-1))
#define SIG_ERR ((void (*)())(-1))
#define SIG_DFL ((void (*)())( 0))
#define SIG_IGN ((void (*)())( 1))
#ifdef KERNEL
#define SIG_CATCH ((void (*)())( 2))
#define SIG_HOLD ((void (*)())( 3))
#else KERNEL
extern void (*signal())();
#endif KERNEL
#endif defined(vax) || (defined(mips) && defined(LANGUAGE_C))
/*
* Macro for converting signal number to a mask suitable for
* sigblock().
*/
#define sigmask(m) (1 << ((m)-1))
#endif NSIG