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- /*
- * $Header: /ax/networking:include/sys/signal.h:networking 1.2 $
- * $Source: /ax/networking:include/sys/signal.h: $
- *
- * Copyright (c) 1988 Acorn Computers Ltd., Cambridge, England
- *
- * $Log: signal.h,v $
- * Revision 1.2 95/02/21 15:02:52 kwelton
- * Removed declarations of unwanted RISC iX specific structures. This
- * has the benefit of removing an unnecessary include: arm/fp.h.
- *
- * Revision 1.1 95/01/11 10:19:46 kwelton
- * Initial revision
- *
- * Revision 1.4 88/08/11 09:27:39 keith
- * Addition of two kernel private psuedo-signals for FP context switching.
- * Also #ifdef _SIGNAL_ to allow multiple inclusions.
- *
- * Revision 1.3 88/06/17 20:21:05 beta
- * Acorn Unix initial beta version
- *
- */
- /* @(#)signal.h 1.3 87/05/29 3.2/4.3NFSSRC */
- /*
- * Copyright (c) 1982, 1986 Regents of the University of California.
- * All rights reserved. The Berkeley software License Agreement
- * specifies the terms and conditions for redistribution.
- *
- * @(#)signal.h 7.1 (Berkeley) 6/4/86
- */
-
- #ifndef _SIGNAL_
- #define _SIGNAL_
-
- #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 SIGABRT SIGIOT /* compatibility */
- #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 FPE_INVALID_OP 0xb /* floating invalid operand */
- #define FPE_INEXACT 0xc /* floating inexactitude! */
- #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 SIGCHLD /* compatibility */
- #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 SIGUSR1 30 /* user defined signal 1 */
- #define SIGUSR2 31 /* user defined signal 2 */
- #define SIGLOST 29 /* resource lost (eg, record-lock lost) */
-
- /* The fp context changer uses two psuedo signals to invoke trampoline
- * code to save/load floating point registers which cannot be accessed
- * in supervisor mode.
- */
- #ifdef KERNEL
- #define SIG_SAVE_FPREGS NSIG+1
- #define SIG_LOAD_FPREGS NSIG+2
- #endif KERNEL
-
-
- #ifndef KERNEL
- int (*signal())();
- #endif
-
- /*
- * 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_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 */
- };
-
- /*
- * 950221 KWelton
- *
- * Remove all the RISC iX specific signal structures
- */
- #ifdef __unix
-
- #ifdef KERNEL
- # include "arm/fp.h"
- #else
- # include "arm/fp.h"
- #endif KERNEL
-
- /*
- * 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_cpu_regs[16]; /* ARM cpu registers to restore */
- struct fp_regs sc_fp_regs; /* floating point register to restore */
- };
-
- struct syslongjmpcontext {
- int sc_onstack; /* sigstack state to restore */
- int sc_mask; /* signal mask to restore */
- int sc_r4, sc_r5, sc_r6; /* r4-r6 to restore */
- int sc_r7, sc_r8, sc_r9; /* r7-r9 to restore */
- int sc_sb; /* static base to restore */
- int sc_fp; /* fp to restore */
- int sc_spt; /* sp temporary to restore */
- int sc_sp; /* sp to restore */
- int sc_lr; /* lr to restore */
- int sc_pc; /* pc to restore */
- };
-
- #endif /* defined(__unix) */
-
- #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
- #endif
-
- /*
- * Macro for converting signal number to a mask suitable for
- * sigblock().
- */
- #define sigmask(m) (1 << ((m)-1))
- #endif _SIGNAL_
-
- /* EOF signal.h */
-