root/usr/src/ucbhead/sys/signal.h
/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License (the "License").
 * You may not use this file except in compliance with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */

/*
 * Copyright 2010 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

/*      Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
/*        All Rights Reserved   */

/*
 * University Copyright- Copyright (c) 1982, 1986, 1988
 * The Regents of the University of California
 * All Rights Reserved
 *
 * University Acknowledgment- Portions of this document are derived from
 * software developed by the University of California, Berkeley, and its
 * contributors.
 */

#ifndef _UCB_SYS_SIGNAL_H
#define _UCB_SYS_SIGNAL_H

/*
 * 4.3BSD signal compatibility header
 *
 * this file includes all standard SVR4 header info, plus the 4.3BSD
 * structures  - 4.3BSD signal codes are translated to SVR4 generic
 * signal codes where applicable
 */

#ifdef  __cplusplus
extern "C" {
#endif

/*
 * SysV <signal.h>
 */

/* ---- <signal.h> ---- */

/*      Copyright (c) 1988 AT&T */
/*        All Rights Reserved   */


#ifndef _SIGNAL_H
#define _SIGNAL_H

/* ---- <sys/signal.h> ---- */

/*      Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
/*        All Rights Reserved   */


#ifndef _SYS_SIGNAL_H
#define _SYS_SIGNAL_H

#define SIGHUP  1       /* hangup */
#define SIGINT  2       /* interrupt (rubout) */
#define SIGQUIT 3       /* quit (ASCII FS) */
#define SIGILL  4       /* illegal instruction (not reset when caught) */
#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 */
#define SIGFPE  8       /* floating point exception */
#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 SIGUSR1 16      /* user defined signal 1 */
#define SIGUSR2 17      /* user defined signal 2 */
#define SIGCLD  18      /* child status change */
#define SIGCHLD 18      /* child status change alias (POSIX) */
#define SIGPWR  19      /* power-fail restart */
#define SIGWINCH 20     /* window size change */
#define SIGURG  21      /* urgent socket condition */
#define SIGPOLL 22      /* pollable event occured */
#define SIGIO   SIGPOLL /* socket I/O possible (SIGPOLL alias) */
#define SIGSTOP 23      /* stop (cannot be caught or ignored) */
#define SIGTSTP 24      /* user stop requested from tty */
#define SIGCONT 25      /* stopped process has been continued */
#define SIGTTIN 26      /* background tty read attempted */
#define SIGTTOU 27      /* background tty write attempted */
#define SIGVTALRM 28    /* virtual timer expired */
#define SIGPROF 29      /* profiling timer expired */
#define SIGXCPU 30      /* exceeded cpu limit */
#define SIGXFSZ 31      /* exceeded file size limit */
#define SIGWAITING 32   /* process's lwps are blocked */
#define SIGLWP  33      /* special signal used by thread library */

#if     defined(__cplusplus)

typedef void SIG_FUNC_TYP(int);
typedef SIG_FUNC_TYP *SIG_TYP;
#define SIG_PF SIG_TYP

#define SIG_DFL (SIG_PF)0
#define SIG_ERR (SIG_PF)-1
#define SIG_IGN (SIG_PF)1
#define SIG_HOLD (SIG_PF)2

#elif   defined(lint)

#define SIG_DFL (void(*)(int))0
#define SIG_ERR (void(*)(int))0
#define SIG_IGN (void (*)(int))0
#define SIG_HOLD (void(*)(int))0

#else

#define SIG_DFL (void(*)())0
#define SIG_ERR (void(*)())-1
#define SIG_IGN (void (*)())1
#define SIG_HOLD (void(*)())2

#endif

#define SIG_BLOCK       1
#define SIG_UNBLOCK     2
#define SIG_SETMASK     3

#define SIGNO_MASK      0xFF
#define SIGDEFER        0x100
#define SIGHOLD         0x200
#define SIGRELSE        0x400
#define SIGIGNORE       0x800
#define SIGPAUSE        0x1000

#if !defined(_STRICT_STDC) || defined(_POSIX_SOURCE)

#ifndef _SIGSET_T
#define _SIGSET_T
typedef struct {                /* signal set type */
        unsigned int    __sigbits[4];
} sigset_t;
#endif  /* _SIGSET_T */

struct sigaction {
        int sa_flags;
#if defined(__cplusplus)
        void (*sa_handler)(int);
#else
        void (*sa_handler)();
#endif
        sigset_t sa_mask;
        int sa_resv[2];
};

/* this is only valid for SIGCLD */
#define SA_NOCLDSTOP    0x00020000      /* don't send job control SIGCLD's */
#endif

#if !defined(_STRICT_STDC) && !defined(_POSIX_SOURCE)
                        /* non-comformant ANSI compilation      */

/* definitions for the sa_flags field */
#define SA_ONSTACK      0x00000001
#define SA_RESETHAND    0x00000002
#define SA_RESTART      0x00000004
#define SA_SIGINFO      0x00000008
#define SA_NODEFER      0x00000010

/* this is only valid for SIGCLD */
#define SA_NOCLDWAIT    0x00010000      /* don't save zombie children    */

#define NSIG    34      /* valid signals range from 1 to NSIG-1 */
#define MAXSIG  33      /* size of u_signal[], NSIG-1 <= MAXSIG */

#define MINSIGSTKSZ     2048
#define SIGSTKSZ        8192

#define SS_ONSTACK      0x00000001
#define SS_DISABLE      0x00000002

struct sigaltstack {
        char    *ss_sp;
        int     ss_size;
        int     ss_flags;
};

typedef struct sigaltstack stack_t;

#endif /* __STDC__ && !POSIX */


#endif /* _SYS_SIGNAL_H */

/* ---- end of SysV <sys/signal.h> ---- */

typedef int     sig_atomic_t;

#if defined(__STDC__)

extern const char *_sys_siglist[];
extern const int _sys_nsig;

#ifdef __cplusplus
extern "C" SIG_PF signal(int, SIG_PF);
#else
extern void (*signal(int, void (*)(int)))(int);
#endif
extern int raise(int);

#if !defined(_STRICT_STDC) || defined(_POSIX_SOURCE) || \
        defined(_XOPEN_SOURCE)
extern int kill(pid_t, int);
extern int sigaction(int, const struct sigaction *, struct sigaction *);
extern int sigaddset(sigset_t *, int);
extern int sigdelset(sigset_t *, int);
extern int sigemptyset(sigset_t *);
extern int sigfillset(sigset_t *);
extern int sigismember(const sigset_t *, int);
extern int sigpending(sigset_t *);
extern int sigprocmask(int, const sigset_t *, sigset_t *);
extern int sigsuspend(const sigset_t *);
#endif

#if !defined(_STRICT_STDC) && !defined(_POSIX_SOURCE)
extern int gsignal(int);
extern void (*sigset(int, void (*)(int)))(int);
extern int sighold(int);
extern int sigrelse(int);
extern int sigignore(int);
extern int sigpause(int);
extern int (*ssignal(int, int (*)(int)))(int);
extern int sigaltstack(const stack_t *, stack_t *);
/* extern int sigsend(idtype_t, id_t, int); */
/* extern int sigsendset(const procset_t *, int); */
#endif

#else

extern char *_sys_siglist[];
extern int _sys_nsig;

extern  void(*signal())();
extern  void(*sigset())();

#endif  /* __STDC__ */

#endif  /* _SIGNAL_H */
/* ---- end of SysV <signal.h> ---- */

#define sigmask(m)      (m > 32 ? 0 : (1 << ((m)-1)))

/*
 * 4.3BSD structure used in sigstack call.
 */

struct  sigstack {
        char    *ss_sp;                 /* signal stack pointer */
        int     ss_onstack;             /* current status */
};

#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 handler to SIG_DFL when signal taken */

#define sv_onstack sv_flags

struct  sigcontext {
        int     sc_onstack;             /* sigstack state to restore */
        int     sc_mask;                /* signal mask to restore */
#ifdef u3b2
        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;                  /* psw to restore */
#endif
#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 MAXWINDOW       31              /* max usable windows in sparc */
        long    sc_sp;                  /* sp to restore */
        long    sc_pc;                  /* pc to retore */
        long    sc_npc;                 /* next pc to restore */
        long    sc_psr;                 /* psr to restore */
                                        /* aliased to REG_CCR for sparcv9 */
        long    sc_g1;                  /* register that must be restored */
        long    sc_o0;
        int     sc_wbcnt;               /* number of outstanding windows */
        char    *sc_spbuf[MAXWINDOW];   /* sp's for each wbuf */
        long    sc_wbuf[MAXWINDOW][16]; /* outstanding window save buffer */
#endif /* __sparc */
#if defined(__amd64)
        long    sc_sp;                  /* sp to restore */
        long    sc_pc;                  /* pc to retore */
        long    sc_ps;                  /* psl to restore */
        long    sc_rax;                 /* rax to restore */
        long    sc_rdx;                 /* rdx to restore */
#define sc_r0   sc_rax
#define sc_r1   sc_rdx
#elif defined(__i386)
        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 */
#define sc_r0   sc_eax
#define sc_r1   sc_edx
#endif
};

/*
 * 4.3BSD signal vector structure used in sigvec call.
 */
struct  sigvec {
#if defined(__cplusplus)
        void    (*sv_handler)(int, int, struct sigcontext *, char *);
#else
        void    (*sv_handler)();        /* signal handler */
#endif
        int     sv_mask;                /* signal mask to apply */
        int     sv_flags;               /* see signal options below */
};

#if defined(__STDC__)
extern int sigvec(int, struct sigvec *, struct sigvec *);
extern int sigblock(int);
extern int sigsetmask(int);
#endif

/*
 * Signal codes taken verbatim from SunOS4.1
 */
#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 */
#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 */
#if defined(__i386) || defined(__amd64)
#define     ILL_ILLINSTR_FAULT  0x02    /* illegal instruction fault */
#endif

#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 */

#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 */

/*
 * The codes for SIGBUS and SIGSEGV are described in <vm/faultcode.h>
 * These are the same between SunOS4.1 and SunOS5.0
 */

#include <vm/faultcode.h>

#define     BUS_HWERR   FC_HWERR        /* misc hardware error (e.g. timeout) */
#define     BUS_ALIGN   FC_ALIGN        /* hardware alignment error */
#ifdef  BUS_OBJERR      /* namespace conflict with SysV */
#undef  BUS_OBJERR
#endif
#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     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     SEGV_MAKE_ERR(e)    FC_MAKE_ERR(e)

#define SIG_NOADDR      ((char *)~0)

#if defined(lint)
#define BADSIG (void(*)())0
#else
#define BADSIG (void(*)())-1
#endif

#ifdef  __cplusplus
}
#endif

#endif /* _UCB_SYS_SIGNAL_H */