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 #include <sys/cdefs.h> 41 #include <sys/_sigset.h> 42 43 /* 44 * Machine-dependent signal definitions 45 */ 46 47 typedef long sig_atomic_t; 48 49 #if __XSI_VISIBLE 50 /* 51 * Minimum signal stack size. The current signal frame 52 * for i386 is 408 bytes large. 53 */ 54 #define MINSIGSTKSZ (512 * 4) 55 #endif 56 57 #if __BSD_VISIBLE 58 #include <machine/trap.h> /* codes for SIGILL, SIGFPE */ 59 60 /* 61 * Only the kernel should need these old type definitions. 62 */ 63 /* 64 * Information pushed on stack when a signal is delivered. 65 * This is used by the kernel to restore state following 66 * execution of the signal handler. It is also made available 67 * to the handler to allow it to restore state properly if 68 * a non-standard exit is performed. 69 */ 70 /* 71 * The sequence of the fields/registers in struct sigcontext should match 72 * those in mcontext_t. 73 */ 74 struct sigcontext { 75 struct __sigset sc_mask; /* signal mask to restore */ 76 long sc_onstack; /* sigstack state to restore */ 77 long sc_rdi; /* machine state (struct trapframe) */ 78 long sc_rsi; 79 long sc_rdx; 80 long sc_rcx; 81 long sc_r8; 82 long sc_r9; 83 long sc_rax; 84 long sc_rbx; 85 long sc_rbp; 86 long sc_r10; 87 long sc_r11; 88 long sc_r12; 89 long sc_r13; 90 long sc_r14; 91 long sc_r15; 92 long sc_trapno; 93 long sc_addr; 94 long sc_err; 95 long sc_rip; 96 long sc_cs; 97 long sc_rflags; 98 long sc_rsp; 99 long sc_ss; 100 long sc_len; /* sizeof(mcontext_t) */ 101 /* 102 * XXX - See <machine/ucontext.h> and <machine/npx.h> for 103 * the following fields. 104 */ 105 long sc_fpformat; 106 long sc_ownedfp; 107 long sc_spare1[1]; 108 long sc_fpstate[64] __aligned(16); 109 long sc_spare2[8]; 110 }; 111 #endif /* __BSD_VISIBLE */ 112 113 #endif /* !_MACHINE_SIGNAL_H_ */ 114