1 /* $NetBSD: signal.h,v 1.27 2005/12/11 12:18:09 christos 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 45 #ifdef _KERNEL_OPT 46 #include "opt_compat_netbsd.h" 47 #include "opt_compat_ultrix.h" 48 #endif 49 #ifdef COMPAT_16 50 #define SIGTRAMP_VALID(vers) ((unsigned)(vers) <= 2) 51 #else 52 #define SIGTRAMP_VALID(vers) ((vers) == 2) 53 #endif 54 #endif 55 56 #if !defined(__ASSEMBLER__) 57 58 59 /* 60 * Machine-dependent signal definitions 61 */ 62 63 typedef int sig_atomic_t; 64 65 /* 66 * Information pushed on stack when a signal is delivered. 67 * This is used by the kernel to restore state following 68 * execution of the signal handler. It is also made available 69 * to the handler to allow it to restore state properly if 70 * a non-standard exit is performed. 71 * 72 * sizeof(sigcontext) = 45 * sizeof(int) + 35 * sizeof(mips_reg_t) 73 */ 74 #if defined(_KERNEL) && (defined(COMPAT_13) || defined(COMPAT_ULTRIX)) 75 struct sigcontext13 { 76 int sc_onstack; /* sigstack state to restore */ 77 int sc_mask; /* signal mask to restore (old style) */ 78 mips_reg_t sc_pc; /* pc at time of signal */ 79 mips_reg_t sc_regs[32]; /* processor regs 0 to 31 */ 80 mips_reg_t mullo, mulhi;/* mullo and mulhi registers... */ 81 int sc_fpused; /* fp has been used */ 82 int sc_fpregs[33]; /* fp regs 0 to 31 and csr */ 83 int sc_fpc_eir; /* floating point exception instruction reg */ 84 int sc_xxx[8]; /* XXX reserved */ 85 }; 86 #endif /* _KERNEL && COMPAT_13 */ 87 88 #if defined(_LIBC) || (defined(_KERNEL) && (defined(COMPAT_16) || defined(COMPAT_ULTRIX))) 89 struct sigcontext { 90 int sc_onstack; /* sigstack state to restore */ 91 int __sc_mask13; /* signal mask to restore (old style) */ 92 mips_reg_t sc_pc; /* pc at time of signal */ 93 mips_reg_t sc_regs[32]; /* processor regs 0 to 31 */ 94 mips_reg_t mullo, mulhi;/* mullo and mulhi registers... */ 95 int sc_fpused; /* fp has been used */ 96 int sc_fpregs[33]; /* fp regs 0 to 31 and csr */ 97 int sc_fpc_eir; /* floating point exception instruction reg */ 98 int sc_xxx[8]; /* XXX reserved */ 99 sigset_t sc_mask; /* signal mask to restore (new style) */ 100 }; 101 #endif /* _LIBC || _KERNEL */ 102 103 #endif /* !_LANGUAGE_ASSEMBLY */ 104 #if defined(_LIBC) 105 /* 106 * Hard code these to make people think twice about breaking compatibility. 107 * These macros are generated independently for the kernel. 108 */ 109 #if !defined(_MIPS_BSD_API) || _MIPS_BSD_API == _MIPS_BSD_API_LP32 110 #define _OFFSETOF_SC_REGS 12 111 #define _OFFSETOF_SC_FPREGS 152 112 #define _OFFSETOF_SC_MASK 320 113 #else 114 #define _OFFSETOF_SC_REGS 16 115 #define _OFFSETOF_SC_FPREGS 292 116 #define _OFFSETOF_SC_MASK 460 117 #endif 118 #endif /* _LIBC */ 119 #endif /* !_MIPS_SIGNAL_H_ */ 120