1 /* $NetBSD: signal.h,v 1.29 2008/11/19 18:35:59 ad 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 #if defined(__minix) && (defined(_LIBMINC) || ! defined(_STANDALONE)) 40 #include <machine/fpu.h> 41 #endif /* defined(__minix) ... */ 42 43 typedef int sig_atomic_t; 44 45 #if defined(_NETBSD_SOURCE) 46 /* 47 * Get the "code" values 48 */ 49 #include <machine/trap.h> 50 51 #if defined(_KERNEL) || defined(__minix) 52 /* 53 * Information pushed on stack when a signal is delivered. 54 * This is used by the kernel to restore state following 55 * execution of the signal handler. It is also made available 56 * to the handler to allow it to restore state properly if 57 * a non-standard exit is performed. 58 */ 59 struct sigcontext13 { 60 int sc_gs; 61 int sc_fs; 62 int sc_es; 63 int sc_ds; 64 int sc_edi; 65 int sc_esi; 66 int sc_ebp; 67 int sc_ebx; 68 int sc_edx; 69 int sc_ecx; 70 int sc_eax; 71 /* XXX */ 72 int sc_eip; 73 int sc_cs; 74 int sc_eflags; 75 int sc_esp; 76 int sc_ss; 77 78 int sc_onstack; /* sigstack state to restore */ 79 int sc_mask; /* signal mask to restore (old style) */ 80 81 int sc_trapno; /* XXX should be above */ 82 int sc_err; 83 }; 84 85 struct sigcontext { 86 int sc_gs; 87 int sc_fs; 88 int sc_es; 89 int sc_ds; 90 int sc_edi; 91 int sc_esi; 92 int sc_ebp; 93 int sc_ebx; 94 int sc_edx; 95 int sc_ecx; 96 int sc_eax; 97 /* XXX */ 98 int sc_eip; 99 int sc_cs; 100 int sc_eflags; 101 int sc_esp; 102 int sc_ss; 103 104 int sc_onstack; /* sigstack state to restore */ 105 int __sc_mask13; /* signal mask to restore (old style) */ 106 107 int sc_trapno; /* XXX should be above */ 108 int sc_err; 109 110 sigset_t sc_mask; /* signal mask to restore (new style) */ 111 #if defined(__minix) && (defined(_LIBMINC) || ! defined(_STANDALONE)) 112 union fpu_state_u sc_fpu_state; 113 int trap_style; /* KTS_* method of entering kernel */ 114 int sc_flags; /* MF_FPU_INITIALIZED if fpu state valid */ 115 #define SC_MAGIC 0xc0ffee1 116 int sc_magic; 117 #endif /* defined(__minix) ... */ 118 }; 119 #endif /* _KERNEL */ 120 121 #if defined(__minix) && (defined(_LIBMINC) || ! defined(_STANDALONE)) 122 __BEGIN_DECLS 123 int sigreturn(struct sigcontext *_scp); 124 __END_DECLS 125 #endif /* defined(__minix) */ 126 127 #endif /* _NETBSD_SOURCE */ 128 #endif /* !_I386_SIGNAL_H_ */ 129