sys/arch/vax/include/signal.h

   1 /*      $NetBSD: signal.h,v 1.14 2008/11/19 18:36:01 ad Exp $   */
   2
   3 /*
   4  * Copyright (c) 1982, 1986, 1989, 1991 Regents of the University of California.
   5  * All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  * 3. Neither the name of the University nor the names of its contributors
  16  *    may be used to endorse or promote products derived from this software
  17  *    without specific prior written permission.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  29  * SUCH DAMAGE.
  30  *
  31  *      @(#)signal.h    7.16 (Berkeley) 3/17/91
  32  */
  33
  34  /* All bugs are subject to removal without further notice */
  35
  36 #ifndef _VAX_SIGNAL_H_
  37 #define _VAX_SIGNAL_H_
  38
  39 #include <sys/featuretest.h>
  40 #include <sys/siginfo.h>
  41 #include <machine/trap.h>
  42
  43 typedef int sig_atomic_t;
  44
  45 #if defined(_NETBSD_SOURCE)
  46 /*
  47  * Information pushed on stack when a signal is delivered.
  48  * This is used by the kernel to restore state following
  49  * execution of the signal handler.  It is also made available
  50  * to the handler to allow it to restore state properly if
  51  * a non-standard exit is performed.
  52  */
  53 #if defined(__LIBC12_SOURCE__) || defined(_KERNEL)
  54 struct sigcontext13 {
  55         int     sc_onstack;             /* sigstack state to restore */
  56         int     sc_mask;                /* signal mask to restore (old style) */
  57         int     sc_sp;                  /* sp to restore */
  58         int     sc_fp;                  /* fp to restore */
  59         int     sc_ap;                  /* ap to restore */
  60         int     sc_pc;                  /* pc to restore */
  61         int     sc_ps;                  /* psl to restore */
  62 };
  63 #endif /* __LIBC12_SOURCE__ || _KERNEL */
  64
  65 struct sigcontext {
  66         int     sc_onstack;             /* sigstack state to restore */
  67         int     __sc_mask13;            /* signal mask to restore (old style) */
  68         int     sc_sp;                  /* sp to restore */
  69         int     sc_fp;                  /* fp to restore */
  70         int     sc_ap;                  /* ap to restore */
  71         int     sc_pc;                  /* pc to restore */
  72         int     sc_ps;                  /* psl to restore */
  73         sigset_t sc_mask;               /* signal mask to restore (new style) */
  74 };
  75
  76 #ifdef _KERNEL
  77 #define sendsig_sigcontext      sendsig_sighelper
  78 #define sendsig_siginfo         sendsig_sighelper
  79
  80 void sendsig_context(int, const sigset_t *, u_long);
  81
  82 /* Avoid a cyclic dependency and don't use ksiginfo_t here. */
  83 struct ksiginfo;
  84
  85 #if defined(COMPAT_13) || defined(COMPAT_ULTRIX) || defined(COMPAT_IBCS2)
  86 struct otrampframe {
  87         unsigned sig;   /* Signal number */
  88         unsigned code;  /* Info code */
  89         vaddr_t scp;    /* Pointer to struct sigcontext */
  90         unsigned r0, r1, r2, r3, r4, r5; /* Registers saved when interrupt */
  91         register_t pc;  /* Address of signal handler */
  92         vaddr_t arg;    /* Pointer to first (and only) sigreturn argument */
  93 };
  94
  95 vaddr_t setupstack_oldsigcontext(const struct ksiginfo *, const sigset_t *,
  96         int, struct lwp *, struct trapframe *, vaddr_t, int, vaddr_t);
  97 #endif /* COMPAT_13 || COMPAT_ULTRIX || COMPAT_IBCS2 */
  98
  99 #if defined(COMPAT_16) || defined(COMPAT_ULTRIX)
 100 struct trampoline2 {
 101         unsigned int narg;      /* Argument count (== 3) */
 102         unsigned int sig;       /* Signal number */
 103         unsigned int code;      /* Info code */
 104         vaddr_t scp;            /* Pointer to struct sigcontext */
 105 };
 106
 107 vaddr_t setupstack_sigcontext2(const struct ksiginfo *, const sigset_t *,
 108         int, struct lwp *, struct trapframe *, vaddr_t, int, vaddr_t);
 109 #endif /* COMPAT_16 || COMPAT_ULTRIX */
 110
 111 #endif  /* _KERNEL */
 112
 113 #endif  /* _NETBSD_SOURCE */
 114 #endif  /* !_VAX_SIGNAL_H_ */