1 /* $OpenBSD: signal.h,v 1.3 1997/02/18 15:54:27 rahnds Exp $ */ 2 /* $NetBSD: signal.h,v 1.1 1996/09/30 16:34:34 ws Exp $ */ 3 4 /* 5 * Copyright (C) 1995, 1996 Wolfgang Solfrank. 6 * Copyright (C) 1995, 1996 TooLs GmbH. 7 * All rights reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. All advertising materials mentioning features or use of this software 18 * must display the following acknowledgement: 19 * This product includes software developed by TooLs GmbH. 20 * 4. The name of TooLs GmbH may not be used to endorse or promote products 21 * derived from this software without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``AS IS'' AND ANY EXPRESS OR 24 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 25 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 26 * IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 27 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 28 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 29 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 30 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 31 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 32 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 33 */ 34 #ifndef _MACHINE_SIGNAL_H_ 35 #define _MACHINE_SIGNAL_H_ 36 37 typedef int sig_atomic_t; 38 39 #include <machine/types.h> 40 41 /* 42 * We have to save all registers on every trap, because 43 * 1. user could attach this process every time 44 * 2. we must be able to restore all user registers in case of fork 45 * Actually, we do not save the fp registers on trap, since 46 * these are not used by the kernel. They are saved only when switching 47 * between processes using the FPU. 48 * 49 */ 50 struct trapframe { 51 u_int32_t fixreg[32]; 52 u_int32_t lr; 53 u_int32_t cr; 54 u_int32_t xer; 55 u_int32_t ctr; 56 int srr0; 57 int srr1; 58 int dar; /* dar & dsisr are only filled on a DSI trap */ 59 int dsisr; 60 u_int32_t exc; 61 }; 62 63 struct sigcontext { 64 int sc_onstack; /* saved onstack flag */ 65 int sc_mask; /* saved signal mask */ 66 struct trapframe sc_frame; /* saved registers */ 67 }; 68 #endif /* _MACHINE_SIGNAL_H_ */ 69