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Annotation of sys/arch/alpha/include/signal.h, Revision 1.1.1.1

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_*/