1 /* $NetBSD: signal.h,v 1.2 2003/04/28 23:16:17 bjh21 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. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by the University of 18 * California, Berkeley and its contributors. 19 * 4. Neither the name of the University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 * 35 * @(#)signal.h 7.16 (Berkeley) 3/17/91 36 */ 37 38 #ifndef _AMD64_SIGNAL_H_ 39 #define _AMD64_SIGNAL_H_ 40 41 #include <sys/featuretest.h> 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 #include <machine/fpu.h> 51 #include <machine/mcontext.h> 52 53 /* 54 * Information pushed on stack when a signal is delivered. 55 * This is used by the kernel to restore state following 56 * execution of the signal handler. It is also made available 57 * to the handler to allow it to restore state properly if 58 * a non-standard exit is performed. 59 */ 60 struct sigcontext { 61 struct fxsave64 *sc_fpstate; 62 u_int64_t sc_onstack; 63 sigset_t sc_mask; 64 mcontext_t sc_mcontext; 65 }; 66 67 #define _MCONTEXT_TO_SIGCONTEXT(uc, sc) \ 68 do { \ 69 memcpy(&(sc)->sc_mcontext.__gregs, &(uc)->uc_mcontext.__gregs, \ 70 sizeof ((uc)->uc_mcontext.__gregs)); \ 71 if ((uc)->uc_flags & _UC_FPU) { \ 72 memcpy(&(sc)->sc_mcontext.__fpregs, \ 73 &(uc)->uc_mcontext.__fpregs, \ 74 sizeof ((uc)->uc_mcontext.__fpregs)); \ 75 } \ 76 } while (/*CONSTCOND*/0) 77 78 #define _SIGCONTEXT_TO_MCONTEXT(sc, uc) \ 79 do { \ 80 memcpy(&(uc)->uc_mcontext.__gregs, &(sc)->sc_mcontext.__gregs, \ 81 sizeof ((uc)->uc_mcontext.__gregs)); \ 82 if ((uc)->uc_flags & _UC_FPU) { \ 83 memcpy(&(uc)->uc_mcontext.__fpregs, \ 84 &(sc)->sc_mcontext.__fpregs, \ 85 sizeof ((uc)->uc_mcontext.__fpregs)); \ 86 } \ 87 } while (/*CONSTCOND*/0) 88 89 #endif /* _NETBSD_SOURCE */ 90 #endif /* !_AMD64_SIGNAL_H_ */ 91