1 /* $NetBSD: signal.h,v 1.19 2021/10/29 01:49:26 thorpej 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 #define __HAVE_STRUCT_SIGCONTEXT 36 37 typedef long sig_atomic_t; 38 39 #ifdef _KERNEL_OPT 40 #include "opt_compat_netbsd.h" 41 #endif 42 43 /* 44 * Information pushed on stack when a signal is delivered. 45 * This is used by the kernel to restore state following 46 * execution of the signal handler. It is also made available 47 * to the handler to allow it to restore state properly if 48 * a non-standard exit is performed. 49 * 50 * Note that sc_regs[] and sc_fpregs[]+sc_fpcr are inline 51 * representations of 'struct reg' and 'struct fpreg', respectively. 52 */ 53 #if defined(_KERNEL) && defined(COMPAT_13) 54 struct sigcontext13 { 55 long sc_onstack; /* sigstack state to restore */ 56 long sc_mask; /* signal mask to restore (old style) */ 57 long sc_pc; /* pc to restore */ 58 long sc_ps; /* ps to restore */ 59 unsigned long sc_regs[32]; /* integer register set (see above) */ 60 #define sc_sp sc_regs[R_SP] 61 long sc_ownedfp; /* fp has been used */ 62 unsigned long sc_fpregs[32]; /* FP register set (see above) */ 63 unsigned long sc_fpcr; /* FP control register (see above) */ 64 unsigned long sc_fp_control; /* FP software control word */ 65 long sc_reserved[2]; /* XXX */ 66 long sc_xxx[8]; /* XXX */ 67 }; 68 #endif /* _KERNEL && COMPAT_13 */ 69 70 #if defined(_LIBC) || (defined(_KERNEL) && defined(COMPAT_16)) 71 struct sigcontext { 72 long sc_onstack; /* sigstack state to restore */ 73 long __sc_mask13; /* signal mask to restore (old style) */ 74 long sc_pc; /* pc to restore */ 75 long sc_ps; /* ps to restore */ 76 unsigned long sc_regs[32]; /* integer register set (see above) */ 77 #define sc_sp sc_regs[R_SP] 78 long sc_ownedfp; /* fp has been used */ 79 unsigned long sc_fpregs[32]; /* FP register set (see above) */ 80 unsigned long sc_fpcr; /* FP control register (see above) */ 81 unsigned long sc_fp_control; /* FP software control word */ 82 long sc_reserved[2]; /* XXX */ 83 long sc_xxx[8]; /* XXX */ 84 sigset_t sc_mask; /* signal mask to restore (new style) */ 85 }; 86 #endif /* _LIBC || _KERNEL */ 87 88 #endif /* !_ALPHA_SIGNAL_H_*/ 89