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/* $OpenBSD: signal.h,v 1.3 2005/12/18 15:42:52 millert Exp $ */
/* $NetBSD: signal.h,v 1.5 2003/10/18 17:57:21 briggs Exp $ */
/*
* Copyright (c) 1994-1996 Mark Brinicombe.
* Copyright (c) 1994 Brini.
* All rights reserved.
*
* This code is derived from software written for Brini by Mark Brinicombe
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Brini.
* 4. The name of the company nor the name of the author may be used to
* endorse or promote products derived from this software without specific
* prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY BRINI ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL BRINI OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* RiscBSD kernel project
*
* signal.h
*
* Architecture dependant signal types and structures
*
* Created : 30/09/94
*/
#ifndef _ARM32_SIGNAL_H_
#define _ARM32_SIGNAL_H_
#ifndef _LOCORE
#include <sys/cdefs.h>
typedef int sig_atomic_t;
#if __BSD_VISIBLE
/*
* Information pushed on stack when a signal is delivered.
* This is used by the kernel to restore state following
* execution of the signal handler. It is also made available
* to the handler to allow it to restore state properly if
* a non-standard exit is performed.
*/
struct sigcontext {
int sc_onstack; /* sigstack state to restore */
int sc_mask; /* signal mask to restore (old style) */
unsigned int sc_spsr;
unsigned int sc_r0;
unsigned int sc_r1;
unsigned int sc_r2;
unsigned int sc_r3;
unsigned int sc_r4;
unsigned int sc_r5;
unsigned int sc_r6;
unsigned int sc_r7;
unsigned int sc_r8;
unsigned int sc_r9;
unsigned int sc_r10;
unsigned int sc_r11;
unsigned int sc_r12;
unsigned int sc_usr_sp;
unsigned int sc_usr_lr;
unsigned int sc_svc_lr;
unsigned int sc_pc;
#if 0
sigset_t sc_mask; /* signal mask to restore (new style) */
#endif
};
#endif /* __BSD_VISIBLE */
#endif /* !_LOCORE */
#if defined(_LOCORE) || __BSD_VISIBLE
/*
* SIGFPE codes
*
* see ieeefp.h for definition of FP exception codes
*/
#define SIG_CODE_FPE_CODE_MASK 0x00000f00 /* Mask for exception code */
#define SIG_CODE_FPE_CODE_SHIFT 8 /* Shift for exception code */
#define SIG_CODE_FPE_TYPE_MASK 0x000000ff /* Mask for specific code */
/*
* SIGILL codes
*
* the signal code is the instruction that raised the signal
*/
/*
* SIGBUS and SIGSEGV codes
*
* The signal code is combination of the fault address and the fault code.
*
* The fault code is the coproc #15 fault status code
*
* The exception to this is a SIGBUS or SIGSEGV from a prefetch abort.
* In this case the fault status code is not valid so the TYPE_MASK
* should be treated as undefined (in practice it is the bottom 4 bits
* of the fault address).
*/
#define SIG_CODE_BUS_ADDR_MASK 0xfffffff0
#define SIG_CODE_BUS_TYPE_MASK 0x0000000f
#define SIG_CODE_SEGV_ADDR_MASK SIG_CODE_BUS_ADDR_MASK
#define SIG_CODE_SEGV_TYPE_MASK SIG_CODE_BUS_TYPE_MASK
#endif /* _LOCORE || __BSD_VISIBLE */
#endif /* !_ARM32_SIGNAL_H_ */
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