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Annotation of sys/arch/alpha/include/signal.h, Revision 1.1

1.1     ! nbrk        1: /*     $OpenBSD: signal.h,v 1.6 2006/12/11 20:53:23 deraadt Exp $      */
        !             2: /*     $NetBSD: signal.h,v 1.2 1995/02/16 03:08:08 cgd Exp $   */
        !             3:
        !             4: /*
        !             5:  * Copyright (c) 1994, 1995 Carnegie-Mellon University.
        !             6:  * All rights reserved.
        !             7:  *
        !             8:  * Author: Chris G. Demetriou
        !             9:  *
        !            10:  * Permission to use, copy, modify and distribute this software and
        !            11:  * its documentation is hereby granted, provided that both the copyright
        !            12:  * notice and this permission notice appear in all copies of the
        !            13:  * software, derivative works or modified versions, and any portions
        !            14:  * thereof, and that both notices appear in supporting documentation.
        !            15:  *
        !            16:  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
        !            17:  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
        !            18:  * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
        !            19:  *
        !            20:  * Carnegie Mellon requests users of this software to return to
        !            21:  *
        !            22:  *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
        !            23:  *  School of Computer Science
        !            24:  *  Carnegie Mellon University
        !            25:  *  Pittsburgh PA 15213-3890
        !            26:  *
        !            27:  * any improvements or extensions that they make and grant Carnegie the
        !            28:  * rights to redistribute these changes.
        !            29:  */
        !            30:
        !            31: #ifndef _ALPHA_SIGNAL_H_
        !            32: #define        _ALPHA_SIGNAL_H_
        !            33:
        !            34: #include <sys/cdefs.h>
        !            35:
        !            36: typedef int    sig_atomic_t;
        !            37:
        !            38: #if __BSD_VISIBLE || __XPG_VISIBLE >= 420
        !            39: /*
        !            40:  * Information pushed on stack when a signal is delivered.
        !            41:  * This is used by the kernel to restore state following
        !            42:  * execution of the signal handler.  It is also made available
        !            43:  * to the handler to allow it to restore state properly if
        !            44:  * a non-standard exit is performed.
        !            45:  *
        !            46:  * Note that sc_regs[] and sc_fpregs[]+sc_fpcr are inline
        !            47:  * representations of 'struct reg' and 'struct fpreg', respectively.
        !            48:  */
        !            49: struct  sigcontext {
        !            50:        long    sc_onstack;             /* sigstack state to restore */
        !            51:        long    sc_mask;                /* signal mask to restore */
        !            52:        long    sc_pc;                  /* pc to restore */
        !            53:        long    sc_ps;                  /* ps to restore */
        !            54:        unsigned long sc_regs[32];      /* integer register set (see above) */
        !            55: #define        sc_sp   sc_regs[R_SP]
        !            56:        long    sc_ownedfp;             /* fp has been used */
        !            57:        unsigned long sc_fpregs[32];    /* FP register set (see above) */
        !            58:        unsigned long sc_fpcr;          /* FP control register (see above) */
        !            59:        unsigned long sc_fp_control;    /* FP software control word */
        !            60:        long    sc_reserved[2];         /* XXX */
        !            61:        long    sc_xxx[8];              /* XXX */
        !            62: };
        !            63: #endif /* __BSD_VISIBLE || __XPG_VISIBLE >= 420 */
        !            64: #endif /* !_ALPHA_SIGNAL_H_*/