1 /* $NetBSD: signal.h,v 1.13 2014/01/29 00:42:15 matt 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 51 #ifndef _LOCORE 52 typedef int sig_atomic_t; 53 #endif 54 55 #if defined(_NETBSD_SOURCE) 56 57 #ifndef _LOCORE 58 /* 59 * Information pushed on stack when a signal is delivered. 60 * This is used by the kernel to restore state following 61 * execution of the signal handler. It is also made available 62 * to the handler to allow it to restore state properly if 63 * a non-standard exit is performed. 64 */ 65 66 #if defined(__LIBC12_SOURCE__) || defined(_KERNEL) 67 struct sigcontext13 { 68 int sc_onstack; /* sigstack state to restore */ 69 int sc_mask; /* signal mask to restore (old style) */ 70 71 unsigned int sc_spsr; 72 unsigned int sc_r0; 73 unsigned int sc_r1; 74 unsigned int sc_r2; 75 unsigned int sc_r3; 76 unsigned int sc_r4; 77 unsigned int sc_r5; 78 unsigned int sc_r6; 79 unsigned int sc_r7; 80 unsigned int sc_r8; 81 unsigned int sc_r9; 82 unsigned int sc_r10; 83 unsigned int sc_r11; 84 unsigned int sc_r12; 85 unsigned int sc_usr_sp; 86 unsigned int sc_usr_lr; 87 unsigned int sc_svc_lr; 88 unsigned int sc_pc; 89 }; 90 #endif /* __LIBC12_SOURCE__ || _KERNEL */ 91 92 struct sigcontext { 93 int sc_onstack; /* sigstack state to restore */ 94 int __sc_mask13; /* signal mask to restore (old style) */ 95 96 unsigned int sc_spsr; 97 unsigned int sc_r0; 98 unsigned int sc_r1; 99 unsigned int sc_r2; 100 unsigned int sc_r3; 101 unsigned int sc_r4; 102 unsigned int sc_r5; 103 unsigned int sc_r6; 104 unsigned int sc_r7; 105 unsigned int sc_r8; 106 unsigned int sc_r9; 107 unsigned int sc_r10; 108 unsigned int sc_r11; 109 unsigned int sc_r12; 110 unsigned int sc_usr_sp; 111 unsigned int sc_usr_lr; 112 unsigned int sc_svc_lr; 113 unsigned int sc_pc; 114 115 sigset_t sc_mask; /* signal mask to restore (new style) */ 116 #ifdef __minix 117 #define SC_MAGIC 0xc0ffee2 118 int sc_magic; 119 int sc_flags; 120 int trap_style; 121 #endif 122 }; 123 124 #endif /* !_LOCORE */ 125 126 /* Signals codes */ 127 128 /* 129 * SIGFPE codes 130 * 131 * see ieeefp.h for definition of FP exception codes 132 */ 133 134 #define SIG_CODE_FPE_CODE_MASK 0x00000f00 /* Mask for exception code */ 135 #define SIG_CODE_FPE_CODE_SHIFT 8 /* Shift for exception code */ 136 #define SIG_CODE_FPE_TYPE_MASK 0x000000ff /* Mask for specific code */ 137 138 /* 139 * SIGILL codes 140 * 141 * the signal code is the instruction that raised the signal 142 */ 143 144 /* 145 * SIGBUS and SIGSEGV codes 146 * 147 * The signal code is combination of the fault address and the fault code. 148 * 149 * The fault code is the coproc #15 fault status code 150 * 151 * The exception to this is a SIGBUS or SIGSEGV from a prefetch abort. 152 * In this case the fault status code is not valid so the TYPE_MASK 153 * should be treated as undefined (in practice it is the bottom 4 bits 154 * of the fault address). 155 */ 156 157 #define SIG_CODE_BUS_ADDR_MASK 0xfffffff0 158 #define SIG_CODE_BUS_TYPE_MASK 0x0000000f 159 #define SIG_CODE_SEGV_ADDR_MASK SIG_CODE_BUS_ADDR_MASK 160 #define SIG_CODE_SEGV_TYPE_MASK SIG_CODE_BUS_TYPE_MASK 161 162 #endif /* _NETBSD_SOURCE */ 163 164 #if defined(__minix) 165 __BEGIN_DECLS 166 int sigreturn(struct sigcontext *_scp); 167 __END_DECLS 168 #endif /* defined(__minix) */ 169 170 #endif /* !_ARM_SIGNAL_H_ */ 171 172 /* End of signal.h */ 173