sys/arch/alpha/include/signal.h

   1 /* $NetBSD: signal.h,v 1.14 2005/12/11 12:16:16 christos Exp $ */
   2
   3 /*
   4  * Copyright (c) 1994, 1995 Carnegie-Mellon University.
   5  * All rights reserved.
   6  *
   7  * Author: Chris G. Demetriou
   8  *
   9  * Permission to use, copy, modify and distribute this software and
  10  * its documentation is hereby granted, provided that both the copyright
  11  * notice and this permission notice appear in all copies of the
  12  * software, derivative works or modified versions, and any portions
  13  * thereof, and that both notices appear in supporting documentation.
  14  *
  15  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
  16  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
  17  * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
  18  *
  19  * Carnegie Mellon requests users of this software to return to
  20  *
  21  *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
  22  *  School of Computer Science
  23  *  Carnegie Mellon University
  24  *  Pittsburgh PA 15213-3890
  25  *
  26  * any improvements or extensions that they make and grant Carnegie the
  27  * rights to redistribute these changes.
  28  */
  29
  30 #ifndef _ALPHA_SIGNAL_H_
  31 #define _ALPHA_SIGNAL_H_
  32
  33 #include <sys/featuretest.h>
  34
  35 typedef long    sig_atomic_t;
  36
  37 #ifdef _KERNEL_OPT
  38 #include "opt_compat_netbsd.h"
  39 #include "opt_compat_osf1.h"
  40 #endif
  41
  42 /*
  43  * Information pushed on stack when a signal is delivered.
  44  * This is used by the kernel to restore state following
  45  * execution of the signal handler.  It is also made available
  46  * to the handler to allow it to restore state properly if
  47  * a non-standard exit is performed.
  48  *
  49  * Note that sc_regs[] and sc_fpregs[]+sc_fpcr are inline
  50  * representations of 'struct reg' and 'struct fpreg', respectively.
  51  */
  52 #if defined(_KERNEL) && (defined(COMPAT_13) || defined(COMPAT_OSF1))
  53 struct sigcontext13 {
  54         long    sc_onstack;             /* sigstack state to restore */
  55         long    sc_mask;                /* signal mask to restore (old style) */
  56         long    sc_pc;                  /* pc to restore */
  57         long    sc_ps;                  /* ps to restore */
  58         unsigned long sc_regs[32];      /* integer register set (see above) */
  59 #define sc_sp   sc_regs[R_SP]
  60         long    sc_ownedfp;             /* fp has been used */
  61         unsigned long sc_fpregs[32];    /* FP register set (see above) */
  62         unsigned long sc_fpcr;          /* FP control register (see above) */
  63         unsigned long sc_fp_control;    /* FP software control word */
  64         long    sc_reserved[2];         /* XXX */
  65         long    sc_xxx[8];              /* XXX */
  66 };
  67 #endif /* _KERNEL && (COMPAT_13 || COMPAT_OSF1) */
  68
  69 #if defined(_LIBC) || (defined(_KERNEL) && (defined(COMPAT_16) || defined(COMPAT_OSF1)))
  70 struct sigcontext {
  71         long    sc_onstack;             /* sigstack state to restore */
  72         long    __sc_mask13;            /* signal mask to restore (old style) */
  73         long    sc_pc;                  /* pc to restore */
  74         long    sc_ps;                  /* ps to restore */
  75         unsigned long sc_regs[32];      /* integer register set (see above) */
  76 #define sc_sp   sc_regs[R_SP]
  77         long    sc_ownedfp;             /* fp has been used */
  78         unsigned long sc_fpregs[32];    /* FP register set (see above) */
  79         unsigned long sc_fpcr;          /* FP control register (see above) */
  80         unsigned long sc_fp_control;    /* FP software control word */
  81         long    sc_reserved[2];         /* XXX */
  82         long    sc_xxx[8];              /* XXX */
  83         sigset_t sc_mask;               /* signal mask to restore (new style) */
  84 };
  85 #endif /* _LIBC || _KERNEL */
  86
  87 #endif /* !_ALPHA_SIGNAL_H_*/