1 /* $NetBSD: signal.h,v 1.10 2002/07/04 01:50:39 thorpej 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 _M68K_SIGNAL_H_ 39 #define _M68K_SIGNAL_H_ 40 41 typedef int sig_atomic_t; 42 43 #if !defined(_ANSI_SOURCE) && !defined(_POSIX_C_SOURCE) && \ 44 !defined(_XOPEN_SOURCE) 45 /* 46 * Get the "code" values 47 */ 48 #include <machine/trap.h> 49 50 /* 51 * Information pushed on stack when a signal is delivered. 52 * This is used by the kernel to restore state following 53 * execution of the signal handler. It is also made available 54 * to the handler to allow it to restore state properly if 55 * a non-standard exit is performed. 56 */ 57 #if defined(__LIBC12_SOURCE__) || defined(_KERNEL) 58 struct sigcontext13 { 59 int sc_onstack; /* sigstack state to restore */ 60 int sc_mask; /* signal mask to restore (old style) */ 61 int sc_sp; /* sp to restore */ 62 int sc_fp; /* fp to restore */ 63 int sc_ap; /* ap to restore */ 64 int sc_pc; /* pc to restore */ 65 int sc_ps; /* psl to restore */ 66 }; 67 #endif /* __LIBC12_SOURCE__ || _KERNEL */ 68 69 struct sigcontext { 70 int sc_onstack; /* sigstack state to restore */ 71 int __sc_mask13; /* signal mask to restore (old style) */ 72 int sc_sp; /* sp to restore */ 73 int sc_fp; /* fp to restore */ 74 int sc_ap; /* ap to restore */ 75 int sc_pc; /* pc to restore */ 76 int sc_ps; /* psl to restore */ 77 sigset_t sc_mask; /* signal mask to restore (new style) */ 78 }; 79 80 #if defined(_KERNEL) && defined(__M68K_SIGNAL_PRIVATE) 81 #include <m68k/frame.h> 82 83 /* 84 * Register state saved while kernel delivers a signal. 85 */ 86 struct sigstate { 87 int ss_flags; /* which of the following are valid */ 88 struct frame ss_frame; /* original exception frame */ 89 struct fpframe ss_fpstate; /* 68881/68882 state info */ 90 }; 91 92 #define SS_RTEFRAME 0x01 93 #define SS_FPSTATE 0x02 94 #define SS_USERREGS 0x04 95 96 /* 97 * Stack frame layout when delivering a signal. 98 */ 99 struct sigframe { 100 int sf_ra; /* handler return address */ 101 int sf_signum; /* signal number for handler */ 102 int sf_code; /* additional info for handler */ 103 struct sigcontext *sf_scp; /* context pointer for handler */ 104 struct sigcontext sf_sc; /* actual context */ 105 struct sigstate sf_state; /* state of the hardware */ 106 }; 107 #endif /* _KERNEL && __M68K_SIGNAL_PRIVATE */ 108 109 #endif /* !_ANSI_SOURCE && !_POSIX_C_SOURCE && !_XOPEN_SOURCE */ 110 #endif /* !_M68K_SIGNAL_H_ */ 111