1 /* 2 * Copyright (c) 1986, 1989, 1991, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * @(#)signal.h 8.1 (Berkeley) 6/11/93 34 * $FreeBSD$ 35 */ 36 37 #ifndef _MACHINE_SIGNAL_H_ 38 #define _MACHINE_SIGNAL_H_ 39 40 /* 41 * Machine-dependent signal definitions 42 */ 43 44 typedef int sig_atomic_t; 45 46 #if !defined(_ANSI_SOURCE) && !defined(_POSIX_SOURCE) 47 48 #include <machine/trap.h> /* codes for SIGILL, SIGFPE */ 49 50 /* 51 * Information pushed on stack when a signal is delivered. 52 * This is used by the kernel to restore state following 53 * execution of the signal handler. It is also made available 54 * to the handler to allow it to restore state properly if 55 * a non-standard exit is performed. 56 */ 57 typedef unsigned int osigset_t; 58 59 struct osigcontext { 60 int sc_onstack; /* sigstack state to restore */ 61 osigset_t sc_mask; /* signal mask to restore */ 62 int sc_esp; /* machine state */ 63 int sc_ebp; 64 int sc_isp; 65 int sc_eip; 66 int sc_efl; 67 int sc_es; 68 int sc_ds; 69 int sc_cs; 70 int sc_ss; 71 int sc_edi; 72 int sc_esi; 73 int sc_ebx; 74 int sc_edx; 75 int sc_ecx; 76 int sc_eax; 77 int sc_gs; 78 int sc_fs; 79 int sc_trapno; 80 int sc_err; 81 }; 82 83 /* 84 * The sequence of the fields/registers in sigcontext should match 85 * those in mcontext_t. 86 */ 87 struct sigcontext { 88 sigset_t sc_mask; /* signal mask to restore */ 89 int sc_onstack; /* sigstack state to restore */ 90 int sc_gs; 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; /* machine state */ 108 int sc_ss; 109 }; 110 111 #define sc_sp sc_esp 112 #define sc_fp sc_ebp 113 #define sc_pc sc_eip 114 #define sc_ps sc_efl 115 #define sc_eflags sc_efl 116 117 #endif /* !_ANSI_SOURCE && !_POSIX_SOURCE */ 118 119 #endif /* !_MACHINE_SIGNAL_H_ */ 120