1 /* $NetBSD: signal.h,v 1.26 2004/05/10 21:51:50 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 COMPAT_16 43 #define SIGTRAMP_VALID(vers) ((unsigned)(vers) <= 2) 44 #else 45 #define SIGTRAMP_VALID(vers) ((vers) == 2) 46 #endif 47 #endif 48 49 #if defined(_NETBSD_SOURCE) 50 /* 51 * Get the "code" values 52 */ 53 #include <machine/trap.h> 54 55 /* 56 * Information pushed on stack when a signal is delivered. 57 * This is used by the kernel to restore state following 58 * execution of the signal handler. It is also made available 59 * to the handler to allow it to restore state properly if 60 * a non-standard exit is performed. 61 */ 62 #if defined(__LIBC12_SOURCE__) || defined(_KERNEL) 63 struct sigcontext13 { 64 int sc_gs; 65 int sc_fs; 66 int sc_es; 67 int sc_ds; 68 int sc_edi; 69 int sc_esi; 70 int sc_ebp; 71 int sc_ebx; 72 int sc_edx; 73 int sc_ecx; 74 int sc_eax; 75 /* XXX */ 76 int sc_eip; 77 int sc_cs; 78 int sc_eflags; 79 int sc_esp; 80 int sc_ss; 81 82 int sc_onstack; /* sigstack state to restore */ 83 int sc_mask; /* signal mask to restore (old style) */ 84 85 int sc_trapno; /* XXX should be above */ 86 int sc_err; 87 }; 88 #endif 89 90 /* 91 * We expose this to userland for legacy interfaces, but only use 92 * it in the kernel for compat code. 93 */ 94 struct sigcontext { 95 int sc_gs; 96 int sc_fs; 97 int sc_es; 98 int sc_ds; 99 int sc_edi; 100 int sc_esi; 101 int sc_ebp; 102 int sc_ebx; 103 int sc_edx; 104 int sc_ecx; 105 int sc_eax; 106 /* XXX */ 107 int sc_eip; 108 int sc_cs; 109 int sc_eflags; 110 int sc_esp; 111 int sc_ss; 112 113 int sc_onstack; /* sigstack state to restore */ 114 int __sc_mask13; /* signal mask to restore (old style) */ 115 116 int sc_trapno; /* XXX should be above */ 117 int sc_err; 118 119 sigset_t sc_mask; /* signal mask to restore (new style) */ 120 }; 121 122 #define sc_sp sc_esp 123 #define sc_fp sc_ebp 124 #define sc_pc sc_eip 125 #define sc_ps sc_eflags 126 127 #endif /* _NETBSD_SOURCE */ 128 #endif /* !_I386_SIGNAL_H_ */ 129