1 /* $NetBSD: signal.h,v 1.14 2005/12/11 12:16:16 christos Exp $ */ 2 3 /* 4 * Copyright (c) 1994, 1995 Carnegie-Mellon University. 5 * All rights reserved. 6 * 7 * Author: Chris G. Demetriou 8 * 9 * Permission to use, copy, modify and distribute this software and 10 * its documentation is hereby granted, provided that both the copyright 11 * notice and this permission notice appear in all copies of the 12 * software, derivative works or modified versions, and any portions 13 * thereof, and that both notices appear in supporting documentation. 14 * 15 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" 16 * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND 17 * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. 18 * 19 * Carnegie Mellon requests users of this software to return to 20 * 21 * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU 22 * School of Computer Science 23 * Carnegie Mellon University 24 * Pittsburgh PA 15213-3890 25 * 26 * any improvements or extensions that they make and grant Carnegie the 27 * rights to redistribute these changes. 28 */ 29 30 #ifndef _ALPHA_SIGNAL_H_ 31 #define _ALPHA_SIGNAL_H_ 32 33 #include <sys/featuretest.h> 34 35 typedef long sig_atomic_t; 36 37 #ifdef _KERNEL 38 #ifdef _KERNEL_OPT 39 #include "opt_compat_netbsd.h" 40 #include "opt_compat_osf1.h" 41 #endif 42 #ifdef COMPAT_16 43 #define SIGTRAMP_VALID(vers) ((unsigned)(vers) <= 2) 44 #else 45 #define SIGTRAMP_VALID(vers) ((vers) == 2) 46 #endif 47 #endif 48 49 /* 50 * Information pushed on stack when a signal is delivered. 51 * This is used by the kernel to restore state following 52 * execution of the signal handler. It is also made available 53 * to the handler to allow it to restore state properly if 54 * a non-standard exit is performed. 55 * 56 * Note that sc_regs[] and sc_fpregs[]+sc_fpcr are inline 57 * representations of 'struct reg' and 'struct fpreg', respectively. 58 */ 59 #if defined(_KERNEL) && (defined(COMPAT_13) || defined(COMPAT_OSF1)) 60 struct sigcontext13 { 61 long sc_onstack; /* sigstack state to restore */ 62 long sc_mask; /* signal mask to restore (old style) */ 63 long sc_pc; /* pc to restore */ 64 long sc_ps; /* ps to restore */ 65 unsigned long sc_regs[32]; /* integer register set (see above) */ 66 #define sc_sp sc_regs[R_SP] 67 long sc_ownedfp; /* fp has been used */ 68 unsigned long sc_fpregs[32]; /* FP register set (see above) */ 69 unsigned long sc_fpcr; /* FP control register (see above) */ 70 unsigned long sc_fp_control; /* FP software control word */ 71 long sc_reserved[2]; /* XXX */ 72 long sc_xxx[8]; /* XXX */ 73 }; 74 #endif /* _KERNEL && (COMPAT_13 || COMPAT_OSF1) */ 75 76 #if defined(_LIBC) || (defined(_KERNEL) && (defined(COMPAT_16) || defined(COMPAT_OSF1))) 77 struct sigcontext { 78 long sc_onstack; /* sigstack state to restore */ 79 long __sc_mask13; /* signal mask to restore (old style) */ 80 long sc_pc; /* pc to restore */ 81 long sc_ps; /* ps to restore */ 82 unsigned long sc_regs[32]; /* integer register set (see above) */ 83 #define sc_sp sc_regs[R_SP] 84 long sc_ownedfp; /* fp has been used */ 85 unsigned long sc_fpregs[32]; /* FP register set (see above) */ 86 unsigned long sc_fpcr; /* FP control register (see above) */ 87 unsigned long sc_fp_control; /* FP software control word */ 88 long sc_reserved[2]; /* XXX */ 89 long sc_xxx[8]; /* XXX */ 90 sigset_t sc_mask; /* signal mask to restore (new style) */ 91 }; 92 #endif /* _LIBC || _KERNEL */ 93 94 #endif /* !_ALPHA_SIGNAL_H_*/ 95