1 /* $NetBSD: signal.h,v 1.29 2009/12/14 00:46:05 matt Exp $ */ 2 3 /* 4 * Copyright (c) 1992, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * This code is derived from software contributed to Berkeley by 8 * Ralph Campbell. 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. Neither the name of the University nor the names of its contributors 19 * may be used to endorse or promote products derived from this software 20 * without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 * 34 * @(#)signal.h 8.1 (Berkeley) 6/10/93 35 */ 36 37 #ifndef _MIPS_SIGNAL_H_ 38 #define _MIPS_SIGNAL_H_ 39 40 #include <sys/featuretest.h> 41 42 #include <machine/cdefs.h> /* for API selection */ 43 44 #ifdef _KERNEL_OPT 45 #include "opt_compat_netbsd.h" 46 #include "opt_compat_ultrix.h" 47 #endif 48 49 #if !defined(__ASSEMBLER__) 50 51 52 /* 53 * Machine-dependent signal definitions 54 */ 55 56 typedef int sig_atomic_t; 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 * sizeof(sigcontext) = 45 * sizeof(int) + 35 * sizeof(mips_reg_t) 66 */ 67 #if defined(_KERNEL) && (defined(COMPAT_13) || defined(COMPAT_ULTRIX)) 68 struct sigcontext13 { 69 int sc_onstack; /* sigstack state to restore */ 70 int sc_mask; /* signal mask to restore (old style) */ 71 int sc_pc; /* pc at time of signal */ 72 int sc_regs[32]; /* processor regs 0 to 31 */ 73 int mullo, mulhi; /* mullo and mulhi registers... */ 74 int sc_fpused; /* fp has been used */ 75 int sc_fpregs[33]; /* fp regs 0 to 31 and csr */ 76 int sc_fpc_eir; /* floating point exception instruction reg */ 77 int sc_xxx[8]; /* XXX reserved */ 78 }; 79 #endif /* _KERNEL && COMPAT_13 */ 80 81 #if defined(_LIBC) || (defined(_KERNEL) && (defined(COMPAT_16) || defined(COMPAT_ULTRIX))) 82 /* 83 * Only need an O32 version. 84 */ 85 #define _SIGCONTEXT_DEFINE(_name, _reg_t, _fp_t) \ 86 struct sigcontext { \ 87 int sc_onstack; /* sigstack state to restore */ \ 88 int __sc_mask13; /* signal mask to restore (old style) */ \ 89 _reg_t sc_pc; /* pc at time of signal */ \ 90 _reg_t sc_regs[32]; /* processor regs 0 to 31 */ \ 91 _reg_t mullo, mulhi; /* mullo and mulhi registers... */ \ 92 int sc_fpused; /* fp has been used */ \ 93 _fp_t sc_fpregs[33]; /* fp regs 0 to 31 and csr */ \ 94 int sc_fpc_eir; /* floating point exception instruction reg */ \ 95 int sc_xxx[8]; /* XXX reserved */ \ 96 sigset_t sc_mask; /* signal mask to restore (new style) */ \ 97 } 98 99 /* 100 * These will be identical in O32 101 */ 102 #ifdef _KERNEL 103 /* 104 * We need this only compatibility. 105 */ 106 _SIGCONTEXT_DEFINE(sigcontext, int, int); 107 #endif 108 #ifdef _LIBC 109 _SIGCONTEXT_DEFINE(sigcontext, register_t, fpregister_t); 110 #endif 111 112 #endif /* _LIBC || _KERNEL */ 113 114 #endif /* !_LANGUAGE_ASSEMBLY */ 115 #endif /* !_MIPS_SIGNAL_H_ */ 116