1 /* $NetBSD: signal.h,v 1.12 2003/08/07 16:29:41 agc Exp $ */ 2 3 /* 4 * Copyright (c) 1992, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * This software was developed by the Computer Systems Engineering group 8 * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and 9 * contributed to Berkeley. 10 * 11 * All advertising materials mentioning features or use of this software 12 * must display the following acknowledgement: 13 * This product includes software developed by the University of 14 * California, Lawrence Berkeley Laboratory. 15 * 16 * Redistribution and use in source and binary forms, with or without 17 * modification, are permitted provided that the following conditions 18 * are met: 19 * 1. Redistributions of source code must retain the above copyright 20 * notice, this list of conditions and the following disclaimer. 21 * 2. Redistributions in binary form must reproduce the above copyright 22 * notice, this list of conditions and the following disclaimer in the 23 * documentation and/or other materials provided with the distribution. 24 * 3. Neither the name of the University nor the names of its contributors 25 * may be used to endorse or promote products derived from this software 26 * without specific prior written permission. 27 * 28 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 29 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 30 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 31 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 32 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 33 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 34 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 35 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 36 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 37 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 38 * SUCH DAMAGE. 39 * 40 * @(#)signal.h 8.1 (Berkeley) 6/11/93 41 */ 42 43 #ifndef _SPARC_SIGNAL_H_ 44 #define _SPARC_SIGNAL_H_ 45 46 #include <sys/featuretest.h> 47 48 #ifndef _LOCORE 49 typedef int sig_atomic_t; 50 #endif 51 52 #if defined(_NETBSD_SOURCE) 53 #ifndef _LOCORE 54 55 /* 56 * Information pushed on stack when a signal is delivered. 57 * This is used by the kernel to restore state following 58 * execution of the signal handler. It is also made available 59 * to the handler to allow it to restore state properly if 60 * a non-standard exit is performed. 61 * 62 * All machines must have an sc_onstack and sc_mask. 63 */ 64 #if defined(__LIBC12_SOURCE__) || defined(_KERNEL) 65 struct sigcontext13 { 66 int sc_onstack; /* sigstack state to restore */ 67 int sc_mask; /* signal mask to restore (old style) */ 68 /* begin machine dependent portion */ 69 long sc_sp; /* %sp to restore */ 70 long sc_pc; /* pc to restore */ 71 long sc_npc; /* npc to restore */ 72 #ifdef __arch64__ 73 long sc_tstate; /* tstate to restore */ 74 #else 75 long sc_psr; /* psr to restore */ 76 #endif 77 long sc_g1; /* %g1 to restore */ 78 long sc_o0; /* %o0 to restore */ 79 }; 80 #endif /* __LIBC12_SOURCE__ || _KERNEL */ 81 struct sigcontext { 82 int sc_onstack; /* sigstack state to restore */ 83 int __sc_mask13; /* signal mask to restore (old style) */ 84 /* begin machine dependent portion */ 85 long sc_sp; /* %sp to restore */ 86 long sc_pc; /* pc to restore */ 87 long sc_npc; /* npc to restore */ 88 #ifdef __arch64__ 89 long sc_tstate; /* tstate to restore */ 90 #else 91 long sc_psr; /* psr to restore */ 92 #endif 93 long sc_g1; /* %g1 to restore */ 94 long sc_o0; /* %o0 to restore */ 95 sigset_t sc_mask; /* signal mask to restore (new style) */ 96 }; 97 98 #ifdef __arch64__ 99 #define _MCONTEXT_TO_SIGCONTEXT_32_64(uc, sc) \ 100 do { \ 101 (sc)->sc_tstate = \ 102 ((uc)->uc_mcontext.__gregs[_REG_CCR] << TSTATE_CCR_SHIFT) | \ 103 ((uc)->uc_mcontext.__gregs[_REG_ASI] << TSTATE_ASI_SHIFT); \ 104 } while (/*CONSTCOND*/0) 105 106 #define _SIGCONTEXT_TO_MCONTEXT_32_64(sc, uc) \ 107 do { \ 108 (uc)->uc_mcontext.__gregs[_REG_CCR] = \ 109 ((sc)->sc_tstate & TSTATE_CCR) >> TSTATE_CCR_SHIFT; \ 110 (uc)->uc_mcontext.__gregs[_REG_ASI] = \ 111 ((sc)->sc_tstate & TSTATE_ASI) >> TSTATE_ASI_SHIFT; \ 112 } while (/*CONSTCOND*/0) 113 #else /* ! __arch64__ */ 114 #define _MCONTEXT_TO_SIGCONTEXT_32_64(uc, sc) \ 115 do { \ 116 (sc)->sc_psr = (uc)->uc_mcontext.__gregs[_REG_PSR]; \ 117 } while (/*CONSTCOND*/0) 118 119 #define _SIGCONTEXT_TO_MCONTEXT_32_64(sc, uc) \ 120 do { \ 121 (uc)->uc_mcontext.__gregs[_REG_PSR] = (sc)->sc_psr; \ 122 } while (/*CONSTCOND*/0) 123 #endif /* __arch64__ */ 124 125 #define _MCONTEXT_TO_SIGCONTEXT(uc, sc) \ 126 do { \ 127 (sc)->sc_sp = (uc)->uc_mcontext.__gregs[_REG_O6]; \ 128 (sc)->sc_pc = (uc)->uc_mcontext.__gregs[_REG_PC]; \ 129 (sc)->sc_npc = (uc)->uc_mcontext.__gregs[_REG_nPC]; \ 130 _MCONTEXT_TO_SIGCONTEXT_32_64((uc), (sc)); \ 131 (sc)->sc_g1 = (uc)->uc_mcontext.__gregs[_REG_G1]; \ 132 (sc)->sc_o0 = (uc)->uc_mcontext.__gregs[_REG_O0]; \ 133 } while (/*CONSTCOND*/0) 134 135 #define _SIGCONTEXT_TO_MCONTEXT(sc, uc) \ 136 do { \ 137 (uc)->uc_mcontext.__gregs[_REG_O6] = (sc)->sc_sp; \ 138 (uc)->uc_mcontext.__gregs[_REG_PC] = (sc)->sc_pc; \ 139 (uc)->uc_mcontext.__gregs[_REG_nPC] = (sc)->sc_npc; \ 140 _SIGCONTEXT_TO_MCONTEXT_32_64((sc), (uc)); \ 141 (uc)->uc_mcontext.__gregs[_REG_G1] = (sc)->sc_g1; \ 142 (uc)->uc_mcontext.__gregs[_REG_O0] = (sc)->sc_o0; \ 143 } while (/*CONSTCOND*/0) 144 145 #else /* _LOCORE */ 146 /* XXXXX These values don't work for _LP64 */ 147 #define SC_SP_OFFSET 8 148 #define SC_PC_OFFSET 12 149 #define SC_NPC_OFFSET 16 150 #define SC_PSR_OFFSET 20 151 #define SC_G1_OFFSET 24 152 #define SC_O0_OFFSET 28 153 #endif /* _LOCORE */ 154 155 /* 156 * `Code' arguments to signal handlers. The names, and the funny numbering. 157 * are defined so as to match up with what SunOS uses; I have no idea why 158 * they did the numbers that way, except maybe to match up with the 68881. 159 */ 160 #define FPE_INTOVF_TRAP 0x01 /* integer overflow */ 161 #define FPE_INTDIV_TRAP 0x14 /* integer divide by zero */ 162 #define FPE_FLTINEX_TRAP 0xc4 /* inexact */ 163 #define FPE_FLTDIV_TRAP 0xc8 /* divide by zero */ 164 #define FPE_FLTUND_TRAP 0xcc /* underflow */ 165 #define FPE_FLTOPERR_TRAP 0xd0 /* operand error */ 166 #define FPE_FLTOVF_TRAP 0xd4 /* overflow */ 167 168 #endif /* _NETBSD_SOURCE */ 169 #endif /* !_SPARC_SIGNAL_H_ */ 170