1 /* $NetBSD: signal.h,v 1.12 2004/05/10 21:51:49 drochner 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 COMPAT_16 39 #define SIGTRAMP_VALID(vers) ((unsigned)(vers) <= 2) 40 #else 41 #define SIGTRAMP_VALID(vers) ((vers) == 2) 42 #endif 43 #endif 44 45 #if defined(_NETBSD_SOURCE) 46 /* 47 * Information pushed on stack when a signal is delivered. 48 * This is used by the kernel to restore state following 49 * execution of the signal handler. It is also made available 50 * to the handler to allow it to restore state properly if 51 * a non-standard exit is performed. 52 * 53 * Note that sc_regs[] and sc_fpregs[]+sc_fpcr are inline 54 * representations of 'struct reg' and 'struct fpreg', respectively. 55 */ 56 #if defined(__LIBC12_SOURCE__) || defined(_KERNEL) 57 struct sigcontext13 { 58 long sc_onstack; /* sigstack state to restore */ 59 long sc_mask; /* signal mask to restore (old style) */ 60 long sc_pc; /* pc to restore */ 61 long sc_ps; /* ps to restore */ 62 unsigned long sc_regs[32]; /* integer register set (see above) */ 63 #define sc_sp sc_regs[R_SP] 64 long sc_ownedfp; /* fp has been used */ 65 unsigned long sc_fpregs[32]; /* FP register set (see above) */ 66 unsigned long sc_fpcr; /* FP control register (see above) */ 67 unsigned long sc_fp_control; /* FP software control word */ 68 long sc_reserved[2]; /* XXX */ 69 long sc_xxx[8]; /* XXX */ 70 }; 71 #endif /* __LIBC12_SOURCE__ || _KERNEL */ 72 73 struct sigcontext { 74 long sc_onstack; /* sigstack state to restore */ 75 long __sc_mask13; /* signal mask to restore (old style) */ 76 long sc_pc; /* pc to restore */ 77 long sc_ps; /* ps to restore */ 78 unsigned long sc_regs[32]; /* integer register set (see above) */ 79 #define sc_sp sc_regs[R_SP] 80 long sc_ownedfp; /* fp has been used */ 81 unsigned long sc_fpregs[32]; /* FP register set (see above) */ 82 unsigned long sc_fpcr; /* FP control register (see above) */ 83 unsigned long sc_fp_control; /* FP software control word */ 84 long sc_reserved[2]; /* XXX */ 85 long sc_xxx[8]; /* XXX */ 86 sigset_t sc_mask; /* signal mask to restore (new style) */ 87 }; 88 89 #endif /* _NETBSD_SOURCE */ 90 #endif /* !_ALPHA_SIGNAL_H_*/ 91