signal.h revision 1.10
1 /* $NetBSD: signal.h,v 1.10 2003/01/18 06:44:57 thorpej 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. All advertising materials mentioning features or use of this software 25 * must display the following acknowledgement: 26 * This product includes software developed by the University of 27 * California, Berkeley and its contributors. 28 * 4. Neither the name of the University nor the names of its contributors 29 * may be used to endorse or promote products derived from this software 30 * without specific prior written permission. 31 * 32 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 33 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 34 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 35 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 36 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 37 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 38 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 39 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 40 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 41 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 42 * SUCH DAMAGE. 43 * 44 * @(#)signal.h 8.1 (Berkeley) 6/11/93 45 */ 46 47 #ifndef _SPARC_SIGNAL_H_ 48 #define _SPARC_SIGNAL_H_ 49 50 #ifndef _LOCORE 51 typedef int sig_atomic_t; 52 #endif 53 54 #if !defined(_ANSI_SOURCE) && !defined(_POSIX_C_SOURCE) && \ 55 !defined(_XOPEN_SOURCE) 56 #ifndef _LOCORE 57 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 * All machines must have an sc_onstack and sc_mask. 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 /* begin machine dependent portion */ 72 long sc_sp; /* %sp to restore */ 73 long sc_pc; /* pc to restore */ 74 long sc_npc; /* npc to restore */ 75 #ifdef __arch64__ 76 long sc_tstate; /* tstate to restore */ 77 #else 78 long sc_psr; /* psr to restore */ 79 #endif 80 long sc_g1; /* %g1 to restore */ 81 long sc_o0; /* %o0 to restore */ 82 }; 83 #endif /* __LIBC12_SOURCE__ || _KERNEL */ 84 struct sigcontext { 85 int sc_onstack; /* sigstack state to restore */ 86 int __sc_mask13; /* signal mask to restore (old style) */ 87 /* begin machine dependent portion */ 88 long sc_sp; /* %sp to restore */ 89 long sc_pc; /* pc to restore */ 90 long sc_npc; /* npc to restore */ 91 #ifdef __arch64__ 92 long sc_tstate; /* tstate to restore */ 93 #else 94 long sc_psr; /* psr to restore */ 95 #endif 96 long sc_g1; /* %g1 to restore */ 97 long sc_o0; /* %o0 to restore */ 98 sigset_t sc_mask; /* signal mask to restore (new style) */ 99 }; 100 101 #ifdef __arch64__ 102 #define _MCONTEXT_TO_SIGCONTEXT_32_64(uc, sc) \ 103 do { \ 104 (sc)->sc_tstate = \ 105 ((uc)->uc_mcontext.__gregs[_REG_CCR] << TSTATE_CCR_SHIFT) | \ 106 ((uc)->uc_mcontext.__gregs[_REG_ASI] << TSTATE_ASI_SHIFT); \ 107 } while (/*CONSTCOND*/0) 108 109 #define _SIGCONTEXT_TO_MCONTEXT_32_64(sc, uc) \ 110 do { \ 111 (uc)->uc_mcontext.__gregs[_REG_CCR] = \ 112 ((sc)->sc_tstate & TSTATE_CCR) >> TSTATE_CCR_SHIFT; \ 113 (uc)->uc_mcontext.__gregs[_REG_ASI] = \ 114 ((sc)->sc_tstate & TSTATE_ASI) >> TSTATE_ASI_SHIFT; \ 115 } while (/*CONSTCOND*/0) 116 #else /* ! __arch64__ */ 117 #define _MCONTEXT_TO_SIGCONTEXT_32_64(uc, sc) \ 118 do { \ 119 (sc)->sc_psr = (uc)->uc_mcontext.__gregs[_REG_PSR]; \ 120 } while (/*CONSTCOND*/0) 121 122 #define _SIGCONTEXT_TO_MCONTEXT_32_64(sc, uc) \ 123 do { \ 124 (uc)->uc_mcontext.__gregs[_REG_PSR] = (sc)->sc_psr; \ 125 } while (/*CONSTCOND*/0) 126 #endif /* __arch64__ */ 127 128 #define _MCONTEXT_TO_SIGCONTEXT(uc, sc) \ 129 do { \ 130 (sc)->sc_sp = (uc)->uc_mcontext.__gregs[_REG_O6]; \ 131 (sc)->sc_pc = (uc)->uc_mcontext.__gregs[_REG_PC]; \ 132 (sc)->sc_npc = (uc)->uc_mcontext.__gregs[_REG_nPC]; \ 133 _MCONTEXT_TO_SIGCONTEXT_32_64((uc), (sc)); \ 134 (sc)->sc_g1 = (uc)->uc_mcontext.__gregs[_REG_G1]; \ 135 (sc)->sc_o0 = (uc)->uc_mcontext.__gregs[_REG_O0]; \ 136 } while (/*CONSTCOND*/0) 137 138 #define _SIGCONTEXT_TO_MCONTEXT(sc, uc) \ 139 do { \ 140 (uc)->uc_mcontext.__gregs[_REG_O6] = (sc)->sc_sp; \ 141 (uc)->uc_mcontext.__gregs[_REG_PC] = (sc)->sc_pc; \ 142 (uc)->uc_mcontext.__gregs[_REG_nPC] = (sc)->sc_npc; \ 143 _SIGCONTEXT_TO_MCONTEXT_32_64((sc), (uc)); \ 144 (uc)->uc_mcontext.__gregs[_REG_G1] = (sc)->sc_g1; \ 145 (uc)->uc_mcontext.__gregs[_REG_O0] = (sc)->sc_o0; \ 146 } while (/*CONSTCOND*/0) 147 148 #else /* _LOCORE */ 149 /* XXXXX These values don't work for _LP64 */ 150 #define SC_SP_OFFSET 8 151 #define SC_PC_OFFSET 12 152 #define SC_NPC_OFFSET 16 153 #define SC_PSR_OFFSET 20 154 #define SC_G1_OFFSET 24 155 #define SC_O0_OFFSET 28 156 #endif /* _LOCORE */ 157 158 /* 159 * `Code' arguments to signal handlers. The names, and the funny numbering. 160 * are defined so as to match up with what SunOS uses; I have no idea why 161 * they did the numbers that way, except maybe to match up with the 68881. 162 */ 163 #define FPE_INTOVF_TRAP 0x01 /* integer overflow */ 164 #define FPE_INTDIV_TRAP 0x14 /* integer divide by zero */ 165 #define FPE_FLTINEX_TRAP 0xc4 /* inexact */ 166 #define FPE_FLTDIV_TRAP 0xc8 /* divide by zero */ 167 #define FPE_FLTUND_TRAP 0xcc /* underflow */ 168 #define FPE_FLTOPERR_TRAP 0xd0 /* operand error */ 169 #define FPE_FLTOVF_TRAP 0xd4 /* overflow */ 170 171 #endif /* !_ANSI_SOURCE && !_POSIX_C_SOURCE && !_XOPEN_SOURCE */ 172 #endif /* !_SPARC_SIGNAL_H_ */ 173
Indexes created Thu Oct 02 10:09:58 GMT 2025