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- /* @(#)signal.h 2.39 89/08/14 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) 1987 by Sun Microsystems, Inc.
- */
-
- #ifndef __sys_signal_h
- #define __sys_signal_h
-
- #include <vm/faultcode.h>
- #define NSIG 32
-
- /*
- * If any signal defines (SIG*) are added, deleted, or changed, the same
- * changes must be made in /usr/include/signal.h as well.
- */
- #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 /* [coprocessor 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
- #ifdef sparc
- #define ILL_STACK 0x00 /* bad stack */
- #define ILL_ILLINSTR_FAULT 0x02 /* illegal instruction fault */
- #define ILL_PRIVINSTR_FAULT 0x03 /* privileged instruction fault */
- /* codes from 0x80 to 0xff are software traps */
- #define ILL_TRAP_FAULT(n) ((n)+0x80) /* trap n fault */
- #endif sparc
- #define SIGTRAP 5 /* trace trap (not reset when caught) */
- #define SIGIOT 6 /* IOT instruction */
- #define SIGABRT 6 /* used by abort, replace SIGIOT in the future */
- #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
- #ifdef sparc
- #define EMT_TAG 0x0a /* tag overflow */
- #endif sparc
- #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
- #ifdef sparc
- #define FPE_INTOVF_TRAP 0x1 /* integer overflow */
- #define FPE_STARTSIG_TRAP 0x2 /* process using fp */
- #define FPE_INTDIV_TRAP 0x14 /* integer divide by zero */
- #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] */
- #endif sparc
- #define SIGKILL 9 /* kill (cannot be caught or ignored) */
- /*
- * The codes for SIGBUS and SIGSEGV are described in <vm/faultcode.h>
- */
- #define SIGBUS 10 /* bus error */
- #define BUS_HWERR FC_HWERR /* misc hardware error (e.g. timeout) */
- #define BUS_ALIGN FC_ALIGN /* hardware alignment error */
- #define BUS_OBJERR FC_OBJERR /* object returned errno value */
- /*
- * The BUS_CODE(code) will be one of the above. In the BUS_OBJERR case,
- * doing a BUS_ERRNO(code) gives an errno value reported by the underlying
- * file object mapped at the fault address. Note that this appears to be
- * duplicated with the segmentation fault case below -- unfortunate, since
- * the specification has always claimed that such errors produce SIGBUS.
- * The segmentation cases are left defined as a transition aid.
- */
- #define BUS_CODE(C) FC_CODE(C)
- #define BUS_ERRNO(C) FC_ERRNO(C)
- #define SIGSEGV 11 /* segmentation violation */
- #define SEGV_NOMAP FC_NOMAP /* no mapping at the fault address */
- #define SEGV_PROT FC_PROT /* access exceeded protections */
- #define SEGV_OBJERR FC_OBJERR /* object returned errno value */
- /*
- * The SEGV_CODE(code) will be SEGV_NOMAP, SEGV_PROT, or SEGV_OBJERR.
- * In the SEGV_OBJERR case, doing a SEGV_ERRNO(code) gives an errno value
- * reported by the underlying file object mapped at the fault address.
- */
- #define SEGV_CODE(C) FC_CODE(C)
- #define SEGV_ERRNO(C) FC_ERRNO(C)
- #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 */
- /*
- * If addr cannot be computed it is set to SIG_NOADDR.
- */
- #define SIG_NOADDR ((char *)~0)
-
- #if !defined(KERNEL) && !defined(LOCORE)
- void (*signal())();
- /*
- * Define BSD 4.1 reliable signals for SVID compatibility.
- * These functions may go away in a future release.
- */
- void (*sigset())();
- int sighold();
- int sigrelse();
- int sigignore();
- #endif !KERNEL && !LOCORE
-
- #ifndef LOCORE
- /*
- * Signal vector "template" used in sigvec call.
- */
- struct sigvec {
- void (*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 */
- /*
- * If any SA_NOCLDSTOP or SV_NOCLDSTOP is change, the same
- * changes must be made in /usr/include/signal.h as well.
- */
- #define SV_NOCLDSTOP 0x0008 /* don't send a SIGCHLD on child stop */
- #define SA_ONSTACK SV_ONSTACK
- #define SA_INTERRUPT SV_INTERRUPT
- #define SA_RESETHAND SV_RESETHAND
-
- #define SA_NOCLDSTOP SV_NOCLDSTOP
- #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 */
- #ifdef vax
- int sc_sp; /* sp to restore */
- int sc_fp; /* fp to restore */
- int sc_ap; /* ap to restore */
- int sc_pc; /* pc to restore */
- int sc_ps; /* psl to restore */
- #endif vax
- #ifdef mc68000
- int sc_sp; /* sp to restore */
- int sc_pc; /* pc to retore */
- int sc_ps; /* psl to restore */
- #endif mc68000
- #ifdef sparc
- #define SPARC_MAXREGWINDOW 31 /* max usable windows in sparc */
- int sc_sp; /* sp to restore */
- int sc_pc; /* pc to retore */
- int sc_npc; /* next pc to restore */
- int sc_psr; /* psr to restore */
- int sc_g1; /* register that must be restored */
- int sc_o0;
- int sc_wbcnt; /* number of outstanding windows */
- char *sc_spbuf[SPARC_MAXREGWINDOW]; /* sp's for each wbuf */
- int sc_wbuf[SPARC_MAXREGWINDOW][16]; /* window save buf */
- #endif sparc
- #ifdef sun386
- int sc_sp; /* sp to restore */
- int sc_pc; /* pc to retore */
- int sc_ps; /* psl to restore */
- int sc_eax; /* eax to restore */
- int sc_edx; /* edx to restore */
- #endif
- };
- #endif !LOCORE
-
- #define BADSIG (void (*)())-1
-
- /*
- * If SIG_ERR, SIG_DFL, SIG_IGN, or SIG_HOLD are changed, the same changes
- * must be made in /usr/include/signal.h as well.
- */
- #define SIG_ERR (void (*)())-1
- #define SIG_DFL (void (*)())0
- #define SIG_IGN (void (*)())1
-
- #ifdef KERNEL
- #define SIG_CATCH (void (*)())2
- #endif KERNEL
- #define SIG_HOLD (void (*)())3
-
- /*
- * Macro for converting signal number to a mask suitable for sigblock().
- */
- #define sigmask(m) (1 << ((m)-1))
- /*
- * signals that can't caught, blocked, or ignored
- */
- #ifdef KERNEL
- #define cantmask (sigmask(SIGKILL)|sigmask(SIGSTOP))
- #endif
-
-
- /*
- * If SIG_BLOCK, SIG_UNBLOCK, or SIG_SETMASK are changed, the same changes
- * must be made in /usr/include/signal.h as well.
- */
- #define SIG_BLOCK 0x0001
- #define SIG_UNBLOCK 0x0002
- #define SIG_SETMASK 0x0004
-
- #if !defined(LOCORE) && !defined(KERNEL)
-
- /*
- * If changes are made to sigset_t or struct sigaction, the same changes
- * must be made in /usr/include/signal.h as well.
- */
- #include <sys/stdtypes.h>
-
- struct sigaction {
- void (*sa_handler)();
- sigset_t sa_mask;
- int sa_flags;
- };
-
- /*
- * If changes are made to the function prototypes, the same changes
- * must be made in /usr/include/signal.h as well.
- */
- void (*signal())();
- int kill(/* pid_t p, int sig */);
- int sigaction(/* int signo,
- struct sigaction *act, struct sigaction *oldact */);
- int sigaddset(/* sigset_t *mask, int signo */);
- int sigdelset(/* sigset_t *mask, int signo */);
- int sigemptyset(/* sigset_t *mask */);
- int sigfillset(/* sigset_t *mask */);
- int sigismember(/* sigset_t *mask, int signo */);
- int sigpending(/* sigset_t *set */);
- int sigprocmask(/* int how, sigset_t *set, *oldset */);
- int sigsuspend(/* sigset_t *mask */);
-
- #endif /* !LOCORE && !KERNEL */
- #endif /* !__sys_signal_h */
-