signal.h revision 53108
11543Srgrimes/* 21543Srgrimes * Copyright (c) 1986, 1989, 1991, 1993 31543Srgrimes * The Regents of the University of California. All rights reserved. 41543Srgrimes * 51543Srgrimes * Redistribution and use in source and binary forms, with or without 61543Srgrimes * modification, are permitted provided that the following conditions 71543Srgrimes * are met: 81543Srgrimes * 1. Redistributions of source code must retain the above copyright 91543Srgrimes * notice, this list of conditions and the following disclaimer. 101543Srgrimes * 2. Redistributions in binary form must reproduce the above copyright 111543Srgrimes * notice, this list of conditions and the following disclaimer in the 121543Srgrimes * documentation and/or other materials provided with the distribution. 131543Srgrimes * 3. All advertising materials mentioning features or use of this software 141543Srgrimes * must display the following acknowledgement: 151543Srgrimes * This product includes software developed by the University of 161543Srgrimes * California, Berkeley and its contributors. 171543Srgrimes * 4. Neither the name of the University nor the names of its contributors 181543Srgrimes * may be used to endorse or promote products derived from this software 191543Srgrimes * without specific prior written permission. 201543Srgrimes * 211543Srgrimes * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 221543Srgrimes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 231543Srgrimes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 241543Srgrimes * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 251543Srgrimes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 261543Srgrimes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 271543Srgrimes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 281543Srgrimes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 291543Srgrimes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 301543Srgrimes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 311543Srgrimes * SUCH DAMAGE. 321543Srgrimes * 331543Srgrimes * @(#)signal.h 8.1 (Berkeley) 6/11/93 341543Srgrimes * $FreeBSD: head/sys/i386/include/signal.h 53108 1999-11-12 13:52:11Z marcel $ 351543Srgrimes */ 361543Srgrimes 371543Srgrimes#ifndef _MACHINE_SIGNAL_H_ 381543Srgrimes#define _MACHINE_SIGNAL_H_ 391543Srgrimes 401543Srgrimes/* 411543Srgrimes * Machine-dependent signal definitions 421543Srgrimes */ 431543Srgrimes 441543Srgrimestypedef int sig_atomic_t; 451543Srgrimes 461543Srgrimes#if !defined(_ANSI_SOURCE) && !defined(_POSIX_SOURCE) 471543Srgrimes 481543Srgrimes#include <machine/trap.h> /* codes for SIGILL, SIGFPE */ 491543Srgrimes 501543Srgrimes/* 511543Srgrimes * Information pushed on stack when a signal is delivered. 521543Srgrimes * This is used by the kernel to restore state following 531543Srgrimes * execution of the signal handler. It is also made available 541543Srgrimes * to the handler to allow it to restore state properly if 551543Srgrimes * a non-standard exit is performed. 561543Srgrimes */ 571543Srgrimestypedef unsigned int osigset_t; 581543Srgrimes 591543Srgrimesstruct osigcontext { 601543Srgrimes int sc_onstack; /* sigstack state to restore */ 611543Srgrimes osigset_t sc_mask; /* signal mask to restore */ 621543Srgrimes int sc_esp; /* machine state follows: */ 631543Srgrimes int sc_ebp; 641543Srgrimes int sc_isp; 651543Srgrimes int sc_eip; 661543Srgrimes int sc_efl; 671543Srgrimes int sc_es; 681543Srgrimes int sc_ds; 691543Srgrimes int sc_cs; 701543Srgrimes int sc_ss; 711543Srgrimes int sc_edi; 721543Srgrimes int sc_esi; 731543Srgrimes int sc_ebx; 741543Srgrimes int sc_edx; 751543Srgrimes int sc_ecx; 761543Srgrimes int sc_eax; 771543Srgrimes int sc_gs; 781543Srgrimes int sc_fs; 791543Srgrimes int sc_trapno; 801543Srgrimes int sc_err; 811543Srgrimes}; 821543Srgrimes 831543Srgrimes/* 84 * The sequence of the fields/registers in struct sigcontext should match 85 * those in mcontext_t. 86 */ 87struct sigcontext { 88 sigset_t sc_mask; /* signal mask to restore */ 89 int sc_onstack; /* sigstack state to restore */ 90 int sc_gs; /* machine state (struct trapframe): */ 91 int sc_fs; 92 int sc_es; 93 int sc_ds; 94 int sc_edi; 95 int sc_esi; 96 int sc_ebp; 97 int sc_isp; 98 int sc_ebx; 99 int sc_edx; 100 int sc_ecx; 101 int sc_eax; 102 int sc_trapno; 103 int sc_err; 104 int sc_eip; 105 int sc_cs; 106 int sc_efl; 107 int sc_esp; 108 int sc_ss; 109 /* 110 * XXX FPU state is 27 * 4 bytes h/w, 1 * 4 bytes s/w (probably not 111 * needed here), or that + 16 * 4 bytes for emulators (probably all 112 * needed here). The "spare" bytes are mostly not spare. 113 */ 114 int sc_fpregs[28]; /* machine state (FPU): */ 115 int sc_spare[17]; 116}; 117 118#define sc_sp sc_esp 119#define sc_fp sc_ebp 120#define sc_pc sc_eip 121#define sc_ps sc_efl 122#define sc_eflags sc_efl 123 124#endif /* !_ANSI_SOURCE && !_POSIX_SOURCE */ 125 126#endif /* !_MACHINE_SIGNAL_H_ */ 127