101 lines
3.1 KiB
C
101 lines
3.1 KiB
C
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/* $NetBSD: signal.h,v 1.1 2002/06/05 01:04:23 fredette Exp $ */
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/* $OpenBSD: signal.h,v 1.1 1998/06/23 19:45:27 mickey Exp $ */
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/*
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* Copyright (c) 1994, The University of Utah and
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* the Computer Systems Laboratory at the University of Utah (CSL).
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* All rights reserved.
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*
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* Permission to use, copy, modify and distribute this software is hereby
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* granted provided that (1) source code retains these copyright, permission,
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* and disclaimer notices, and (2) redistributions including binaries
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* reproduce the notices in supporting documentation, and (3) all advertising
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* materials mentioning features or use of this software display the following
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* acknowledgement: ``This product includes software developed by the
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* Computer Systems Laboratory at the University of Utah.''
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*
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* THE UNIVERSITY OF UTAH AND CSL ALLOW FREE USE OF THIS SOFTWARE IN ITS "AS
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* IS" CONDITION. THE UNIVERSITY OF UTAH AND CSL DISCLAIM ANY LIABILITY OF
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* ANY KIND FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
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*
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* CSL requests users of this software to return to csl-dist@cs.utah.edu any
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* improvements that they make and grant CSL redistribution rights.
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*
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* Utah $Hdr: signal.h 1.3 94/12/16$
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*/
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/*
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* Machine-dependent signal definitions
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*/
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typedef int sig_atomic_t;
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#ifndef _POSIX_SOURCE
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#include <machine/trap.h> /* codes for SIGILL, SIGFPE */
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#endif
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/*
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* Information pushed on stack when a signal is delivered.
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* This is used by the kernel to restore state following
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* execution of the signal handler. It is also made available
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* to the handler to allow it to restore state properly if
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* a non-standard exit is performed.
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*/
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struct sigcontext {
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int sc_onstack; /* sigstack state to restore */
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int __sc_mask13; /* signal mask to restore (old style) */
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int sc_sp; /* sp to restore */
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int sc_fp; /* fp to restore */
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int sc_ap; /* ap to restore */
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int sc_pcsqh; /* pc space queue (head) to restore */
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int sc_pcoqh; /* pc offset queue (head) to restore */
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int sc_pcsqt; /* pc space queue (tail) to restore */
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int sc_pcoqt; /* pc offset queue (tail) to restore */
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int sc_ps; /* psl to restore */
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sigset_t sc_mask; /* signal mask to restore (new style) */
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};
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#if defined(_KERNEL)
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#include <hppa/frame.h>
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/*
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* Register state saved while kernel delivers a signal.
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*/
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struct sigstate {
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int ss_flags; /* which of the following are valid */
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struct trapframe ss_frame; /* original exception frame */
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};
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#define SS_FPSTATE 0x01
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#define SS_USERREGS 0x02
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/*
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* Stack frame layout when delivering a signal.
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*/
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struct sigframe {
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struct sigcontext sf_sc; /* actual context */
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struct sigstate sf_state; /* state of the hardware */
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/*
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* Everything below here must match the calling convention.
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* Per that convention, sendsig must initialize very little;
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* only sf_psp, sf_clup, sf_sl, and sf_edp must be set.
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* Note that this layout matches the HPPA_FRAME_ macros
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* in frame.h.
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*/
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u_int sf_arg3;
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u_int sf_arg2;
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u_int sf_arg1;
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u_int sf_arg0;
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u_int sf_edp;
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u_int sf_esr4;
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u_int sf_erp;
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u_int sf_crp;
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u_int sf_sl;
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u_int sf_clup;
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u_int sf_ep;
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u_int sf_psp;
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};
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#endif /* _KERNEL */
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