sigframe.h revision 51792
1/*- 2 * Copyright (c) 1999 Marcel Moolenaar 3 * 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 * in this position and unchanged. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. The name of the author may not be used to endorse or promote products 15 * derived from this software without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 * 28 * $FreeBSD: head/sys/i386/include/sigframe.h 51792 1999-09-29 15:06:27Z marcel $ 29 */ 30 31#ifndef _MACHINE_SIGFRAME_H_ 32#define _MACHINE_SIGFRAME_H_ 1 33 34struct osigframe { 35 /* 36 * The first three members may be used by applications. 37 */ 38 39 register_t sf_signum; 40 41 /* 42 * Either 'int' for old-style FreeBSD handler or 'siginfo_t *' 43 * pointing to sf_siginfo for SA_SIGINFO handlers. 44 */ 45 register_t sf_arg2; 46 47 /* Points to sf_siginfo.si_sc. */ 48 register_t sf_scp; 49 50 /* 51 * The following arguments are not constrained by the 52 * function call protocol. 53 * Applications are not supposed to access these members, 54 * except using the pointers we provide in the first three 55 * arguments. 56 */ 57 58 char *sf_addr; 59 60 union { 61 __osiginfohandler_t *sf_action; 62 __sighandler_t *sf_handler; 63 } sf_ahu; 64 65 /* In the SA_SIGINFO case, sf_arg2 points here. */ 66 osiginfo_t sf_siginfo; 67}; 68 69struct sigframe { 70 /* 71 * The first three members may be used by applications. 72 */ 73 register_t sf_signum; 74 register_t sf_siginfo; /* code or pointer to sf_si */ 75 register_t sf_ucontext; /* points to sf_uc */ 76 register_t __spare__; /* Align sf_ahu */ 77 union { 78 __siginfohandler_t *sf_action; 79 __sighandler_t *sf_handler; 80 } sf_ahu; 81 register_t sf_sigreturn; /* sigreturn to use */ 82 siginfo_t sf_si; /* = *sf_siginfo (SA_SIGINFO case) */ 83 ucontext_t sf_uc; /* = *sf_ucontext */ 84}; 85 86#endif /* _MACHINE_SIGFRAME_H_ */ 87