1 /* $NetBSD: signal.h,v 1.27 2005/01/20 20:55:55 drochner Exp $ */ 2 3 /* 4 * Copyright (c) 1982, 1986, 1989, 1991 Regents of the University of California. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. Neither the name of the University nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 * 31 * @(#)signal.h 7.16 (Berkeley) 3/17/91 32 */ 33 34 #ifndef _I386_SIGNAL_H_ 35 #define _I386_SIGNAL_H_ 36 37 #include <sys/featuretest.h> 38 39 typedef int sig_atomic_t; 40 41 #ifdef _KERNEL 42 #ifdef _KERNEL_OPT 43 #include "opt_compat_netbsd.h" 44 #include "opt_compat_ibcs2.h" 45 #endif 46 #ifdef COMPAT_16 47 #define SIGTRAMP_VALID(vers) ((unsigned)(vers) <= 2) 48 #else 49 #define SIGTRAMP_VALID(vers) ((vers) == 2) 50 #endif 51 #endif 52 53 #if defined(_NETBSD_SOURCE) 54 /* 55 * Get the "code" values 56 */ 57 #include <machine/trap.h> 58 59 #if defined(_KERNEL) && (defined(COMPAT_16) || defined(COMPAT_IBCS2)) 60 /* 61 * Information pushed on stack when a signal is delivered. 62 * This is used by the kernel to restore state following 63 * execution of the signal handler. It is also made available 64 * to the handler to allow it to restore state properly if 65 * a non-standard exit is performed. 66 */ 67 #if defined(COMPAT_13) 68 struct sigcontext13 { 69 int sc_gs; 70 int sc_fs; 71 int sc_es; 72 int sc_ds; 73 int sc_edi; 74 int sc_esi; 75 int sc_ebp; 76 int sc_ebx; 77 int sc_edx; 78 int sc_ecx; 79 int sc_eax; 80 /* XXX */ 81 int sc_eip; 82 int sc_cs; 83 int sc_eflags; 84 int sc_esp; 85 int sc_ss; 86 87 int sc_onstack; /* sigstack state to restore */ 88 int sc_mask; /* signal mask to restore (old style) */ 89 90 int sc_trapno; /* XXX should be above */ 91 int sc_err; 92 }; 93 #endif /* COMPAT_13 */ 94 95 struct sigcontext { 96 int sc_gs; 97 int sc_fs; 98 int sc_es; 99 int sc_ds; 100 int sc_edi; 101 int sc_esi; 102 int sc_ebp; 103 int sc_ebx; 104 int sc_edx; 105 int sc_ecx; 106 int sc_eax; 107 /* XXX */ 108 int sc_eip; 109 int sc_cs; 110 int sc_eflags; 111 int sc_esp; 112 int sc_ss; 113 114 int sc_onstack; /* sigstack state to restore */ 115 int __sc_mask13; /* signal mask to restore (old style) */ 116 117 int sc_trapno; /* XXX should be above */ 118 int sc_err; 119 120 sigset_t sc_mask; /* signal mask to restore (new style) */ 121 }; 122 #endif /* _KERNEL && (COMPAT_16 || COMPAT_IBCS2) */ 123 124 #endif /* _NETBSD_SOURCE */ 125 #endif /* !_I386_SIGNAL_H_ */ 126