1 /* $NetBSD: signal.h,v 1.24 2004/05/10 21:51:50 drochner 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 COMPAT_16 46 #define SIGTRAMP_VALID(vers) ((unsigned)(vers) <= 2) 47 #else 48 #define SIGTRAMP_VALID(vers) ((vers) == 2) 49 #endif 50 #endif 51 52 #if !defined(__ASSEMBLER__) 53 54 55 /* 56 * Machine-dependent signal definitions 57 */ 58 59 typedef int sig_atomic_t; 60 61 #if defined(_NETBSD_SOURCE) 62 /* 63 * Information pushed on stack when a signal is delivered. 64 * This is used by the kernel to restore state following 65 * execution of the signal handler. It is also made available 66 * to the handler to allow it to restore state properly if 67 * a non-standard exit is performed. 68 * 69 * sizeof(sigcontext) = 45 * sizeof(int) + 35 * sizeof(mips_reg_t) 70 */ 71 #if defined(__LIBC12_SOURCE__) || defined(_KERNEL) 72 struct sigcontext13 { 73 int sc_onstack; /* sigstack state to restore */ 74 int sc_mask; /* signal mask to restore (old style) */ 75 mips_reg_t sc_pc; /* pc at time of signal */ 76 mips_reg_t sc_regs[32]; /* processor regs 0 to 31 */ 77 mips_reg_t mullo, mulhi;/* mullo and mulhi registers... */ 78 int sc_fpused; /* fp has been used */ 79 int sc_fpregs[33]; /* fp regs 0 to 31 and csr */ 80 int sc_fpc_eir; /* floating point exception instruction reg */ 81 int sc_xxx[8]; /* XXX reserved */ 82 }; 83 #endif /* __LIBC12_SOURCE__ || _KERNEL */ 84 85 struct sigcontext { 86 int sc_onstack; /* sigstack state to restore */ 87 int __sc_mask13; /* signal mask to restore (old style) */ 88 mips_reg_t sc_pc; /* pc at time of signal */ 89 mips_reg_t sc_regs[32]; /* processor regs 0 to 31 */ 90 mips_reg_t mullo, mulhi;/* mullo and mulhi registers... */ 91 int sc_fpused; /* fp has been used */ 92 int sc_fpregs[33]; /* fp regs 0 to 31 and csr */ 93 int sc_fpc_eir; /* floating point exception instruction reg */ 94 int sc_xxx[8]; /* XXX reserved */ 95 sigset_t sc_mask; /* signal mask to restore (new style) */ 96 }; 97 98 #endif /* _NETBSD_SOURCE */ 99 100 #endif /* !_LANGUAGE_ASSEMBLY */ 101 #if !defined(_KERNEL) 102 /* 103 * Hard code these to make people think twice about breaking compatibility. 104 * These macros are generated independently for the kernel. 105 */ 106 #if !defined(_MIPS_BSD_API) || _MIPS_BSD_API == _MIPS_BSD_API_LP32 107 #define _OFFSETOF_SC_REGS 12 108 #define _OFFSETOF_SC_FPREGS 152 109 #define _OFFSETOF_SC_MASK 320 110 #else 111 #define _OFFSETOF_SC_REGS 16 112 #define _OFFSETOF_SC_FPREGS 292 113 #define _OFFSETOF_SC_MASK 460 114 #endif 115 #endif /* !_KERNEL */ 116 #endif /* !_MIPS_SIGNAL_H_ */ 117