1 /* $NetBSD: signal.h,v 1.14 2017/01/07 19:04:24 christos Exp $ */ 2 3 /* 4 * Copyright (c) 1994-1996 Mark Brinicombe. 5 * Copyright (c) 1994 Brini. 6 * All rights reserved. 7 * 8 * This code is derived from software written for Brini by Mark Brinicombe 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by Brini. 21 * 4. The name of the company nor the name of the author may be used to 22 * endorse or promote products derived from this software without specific 23 * prior written permission. 24 * 25 * THIS SOFTWARE IS PROVIDED BY BRINI ``AS IS'' AND ANY EXPRESS OR IMPLIED 26 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 27 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 28 * IN NO EVENT SHALL BRINI OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, 29 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 30 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 31 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 32 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 33 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 34 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 35 * SUCH DAMAGE. 36 * 37 * RiscBSD kernel project 38 * 39 * signal.h 40 * 41 * Architecture dependent signal types and structures 42 * 43 * Created : 30/09/94 44 */ 45 46 #ifndef _ARM_SIGNAL_H_ 47 #define _ARM_SIGNAL_H_ 48 49 #include <sys/featuretest.h> 50 #include <sys/sigtypes.h> 51 52 #ifndef _LOCORE 53 typedef int sig_atomic_t; 54 #endif 55 56 #if defined(_NETBSD_SOURCE) 57 58 #ifndef _LOCORE 59 /* 60 * Information pushed on stack when a signal is delivered. 61 * This is used by the kernel to restore state following 62 * execution of the signal handler. It is also made available 63 * to the handler to allow it to restore state properly if 64 * a non-standard exit is performed. 65 */ 66 67 #if defined(__LIBC12_SOURCE__) || defined(_KERNEL) 68 struct sigcontext13 { 69 int sc_onstack; /* sigstack state to restore */ 70 int sc_mask; /* signal mask to restore (old style) */ 71 72 unsigned int sc_spsr; 73 unsigned int sc_r0; 74 unsigned int sc_r1; 75 unsigned int sc_r2; 76 unsigned int sc_r3; 77 unsigned int sc_r4; 78 unsigned int sc_r5; 79 unsigned int sc_r6; 80 unsigned int sc_r7; 81 unsigned int sc_r8; 82 unsigned int sc_r9; 83 unsigned int sc_r10; 84 unsigned int sc_r11; 85 unsigned int sc_r12; 86 unsigned int sc_usr_sp; 87 unsigned int sc_usr_lr; 88 unsigned int sc_svc_lr; 89 unsigned int sc_pc; 90 }; 91 #endif /* __LIBC12_SOURCE__ || _KERNEL */ 92 93 struct sigcontext { 94 int sc_onstack; /* sigstack state to restore */ 95 int __sc_mask13; /* signal mask to restore (old style) */ 96 97 unsigned int sc_spsr; 98 unsigned int sc_r0; 99 unsigned int sc_r1; 100 unsigned int sc_r2; 101 unsigned int sc_r3; 102 unsigned int sc_r4; 103 unsigned int sc_r5; 104 unsigned int sc_r6; 105 unsigned int sc_r7; 106 unsigned int sc_r8; 107 unsigned int sc_r9; 108 unsigned int sc_r10; 109 unsigned int sc_r11; 110 unsigned int sc_r12; 111 unsigned int sc_usr_sp; 112 unsigned int sc_usr_lr; 113 unsigned int sc_svc_lr; 114 unsigned int sc_pc; 115 116 sigset_t sc_mask; /* signal mask to restore (new style) */ 117 }; 118 119 #endif /* !_LOCORE */ 120 121 /* Signals codes */ 122 123 /* 124 * SIGFPE codes 125 * 126 * see ieeefp.h for definition of FP exception codes 127 */ 128 129 #define SIG_CODE_FPE_CODE_MASK 0x00000f00 /* Mask for exception code */ 130 #define SIG_CODE_FPE_CODE_SHIFT 8 /* Shift for exception code */ 131 #define SIG_CODE_FPE_TYPE_MASK 0x000000ff /* Mask for specific code */ 132 133 /* 134 * SIGILL codes 135 * 136 * the signal code is the instruction that raised the signal 137 */ 138 139 /* 140 * SIGBUS and SIGSEGV codes 141 * 142 * The signal code is combination of the fault address and the fault code. 143 * 144 * The fault code is the coproc #15 fault status code 145 * 146 * The exception to this is a SIGBUS or SIGSEGV from a prefetch abort. 147 * In this case the fault status code is not valid so the TYPE_MASK 148 * should be treated as undefined (in practice it is the bottom 4 bits 149 * of the fault address). 150 */ 151 152 #define SIG_CODE_BUS_ADDR_MASK 0xfffffff0 153 #define SIG_CODE_BUS_TYPE_MASK 0x0000000f 154 #define SIG_CODE_SEGV_ADDR_MASK SIG_CODE_BUS_ADDR_MASK 155 #define SIG_CODE_SEGV_TYPE_MASK SIG_CODE_BUS_TYPE_MASK 156 157 #endif /* _NETBSD_SOURCE */ 158 #endif /* !_ARM_SIGNAL_H_ */ 159 160 /* End of signal.h */ 161