1 /* $NetBSD: signal.h,v 1.5 2005/12/11 12:17:37 christos Exp $ */ 2 3 /* $OpenBSD: signal.h,v 1.1 1998/06/23 19:45:27 mickey Exp $ */ 4 5 /* 6 * Copyright (c) 1994, The University of Utah and 7 * the Computer Systems Laboratory at the University of Utah (CSL). 8 * All rights reserved. 9 * 10 * Permission to use, copy, modify and distribute this software is hereby 11 * granted provided that (1) source code retains these copyright, permission, 12 * and disclaimer notices, and (2) redistributions including binaries 13 * reproduce the notices in supporting documentation, and (3) all advertising 14 * materials mentioning features or use of this software display the following 15 * acknowledgement: ``This product includes software developed by the 16 * Computer Systems Laboratory at the University of Utah.'' 17 * 18 * THE UNIVERSITY OF UTAH AND CSL ALLOW FREE USE OF THIS SOFTWARE IN ITS "AS 19 * IS" CONDITION. THE UNIVERSITY OF UTAH AND CSL DISCLAIM ANY LIABILITY OF 20 * ANY KIND FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. 21 * 22 * CSL requests users of this software to return to csl-dist@cs.utah.edu any 23 * improvements that they make and grant CSL redistribution rights. 24 * 25 * Utah $Hdr: signal.h 1.3 94/12/16$ 26 */ 27 28 #ifndef _HPPA_SIGNAL_H__ 29 #define _HPPA_SIGNAL_H__ 30 31 /* 32 * Machine-dependent signal definitions 33 */ 34 35 #include <sys/featuretest.h> 36 37 typedef int sig_atomic_t; 38 39 #define __HAVE_SIGINFO 40 41 #if defined(_XOPEN_SOURCE) || defined(_NETBSD_SOURCE) 42 #include <machine/trap.h> /* codes for SIGILL, SIGFPE */ 43 #endif 44 45 /* 46 * Information pushed on stack when a signal is delivered. 47 * This is used by the kernel to restore state following 48 * execution of the signal handler. It is also made available 49 * to the handler to allow it to restore state properly if 50 * a non-standard exit is performed. 51 */ 52 struct sigcontext { 53 int sc_onstack; /* sigstack state to restore */ 54 int __sc_mask13; /* signal mask to restore (old style) */ 55 int sc_sp; /* sp to restore */ 56 int sc_fp; /* fp to restore */ 57 int sc_ap; /* ap to restore */ 58 int sc_pcsqh; /* pc space queue (head) to restore */ 59 int sc_pcoqh; /* pc offset queue (head) to restore */ 60 int sc_pcsqt; /* pc space queue (tail) to restore */ 61 int sc_pcoqt; /* pc offset queue (tail) to restore */ 62 int sc_ps; /* psl to restore */ 63 sigset_t sc_mask; /* signal mask to restore (new style) */ 64 }; 65 66 #if defined(_KERNEL) 67 #include <hppa/frame.h> 68 69 /* 70 * Register state saved while kernel delivers a signal. 71 */ 72 struct sigstate { 73 int ss_flags; /* which of the following are valid */ 74 struct trapframe ss_frame; /* original exception frame */ 75 }; 76 77 #define SS_FPSTATE 0x01 78 #define SS_USERREGS 0x02 79 80 /* 81 * Stack frame layout when delivering a signal. 82 */ 83 struct sigframe { 84 struct sigcontext sf_sc; /* actual context */ 85 struct sigstate sf_state; /* state of the hardware */ 86 /* 87 * Everything below here must match the calling convention. 88 * Per that convention, sendsig must initialize very little; 89 * only sf_psp, sf_clup, sf_sl, and sf_edp must be set. 90 * Note that this layout matches the HPPA_FRAME_ macros 91 * in frame.h. 92 */ 93 u_int sf_arg3; 94 u_int sf_arg2; 95 u_int sf_arg1; 96 u_int sf_arg0; 97 u_int sf_edp; 98 u_int sf_esr4; 99 u_int sf_erp; 100 u_int sf_crp; 101 u_int sf_sl; 102 u_int sf_clup; 103 u_int sf_ep; 104 u_int sf_psp; 105 }; 106 107 #endif /* _KERNEL */ 108 109 #endif /* _HPPA_SIGNAL_H__ */ 110