1 /* $NetBSD: signal.h,v 1.23 2021/10/29 04:13:39 thorpej Exp $ */ 2 3 /* 4 * Copyright (c) 1982, 1986, 1989, 1991 Regents of the University of California. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. Neither the name of the University nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 * 31 * @(#)signal.h 7.16 (Berkeley) 3/17/91 32 */ 33 34 /* All bugs are subject to removal without further notice */ 35 36 #ifndef _VAX_SIGNAL_H_ 37 #define _VAX_SIGNAL_H_ 38 39 #include <sys/featuretest.h> 40 #include <sys/siginfo.h> 41 #include <machine/trap.h> 42 43 #define __HAVE_STRUCT_SIGCONTEXT 44 45 /* VAX versioned its sigcontext trampoline ABI (Sept 2002). */ 46 #define __SIGTRAMP_SIGCONTEXT_VERSION_MAX 2 47 #define __SIGTRAMP_SIGCONTEXT_VERSION 2 48 49 #define __SIGTRAMP_SIGINFO_VERSION_MIN 3 50 #define __SIGTRAMP_SIGINFO_VERSION_MAX 3 51 #define __SIGTRAMP_SIGINFO_VERSION 3 52 53 typedef int sig_atomic_t; 54 55 #if defined(_NETBSD_SOURCE) 56 #include <sys/sigtypes.h> 57 /* 58 * Information pushed on stack when a signal is delivered. 59 * This is used by the kernel to restore state following 60 * execution of the signal handler. It is also made available 61 * to the handler to allow it to restore state properly if 62 * a non-standard exit is performed. 63 */ 64 #if defined(_LIBC) || defined(_KERNEL) 65 struct sigcontext13 { 66 int sc_onstack; /* sigstack state to restore */ 67 int sc_mask; /* signal mask to restore (old style) */ 68 int sc_sp; /* sp to restore */ 69 int sc_fp; /* fp to restore */ 70 int sc_ap; /* ap to restore */ 71 int sc_pc; /* pc to restore */ 72 int sc_ps; /* psl to restore */ 73 }; 74 75 struct sigcontext { 76 int sc_onstack; /* sigstack state to restore */ 77 int __sc_mask13; /* signal mask to restore (old style) */ 78 int sc_sp; /* sp to restore */ 79 int sc_fp; /* fp to restore */ 80 int sc_ap; /* ap to restore */ 81 int sc_pc; /* pc to restore */ 82 int sc_ps; /* psl to restore */ 83 sigset_t sc_mask; /* signal mask to restore (new style) */ 84 }; 85 #endif /* _LIBC || _KERNEL */ 86 87 #ifdef _KERNEL 88 #define sendsig_sigcontext sendsig_sighelper 89 #define sendsig_siginfo sendsig_sighelper 90 91 void sendsig_context(int, const sigset_t *, u_long); 92 93 /* Avoid a cyclic dependency and don't use ksiginfo_t here. */ 94 struct ksiginfo; 95 96 #if defined(COMPAT_13) || defined(COMPAT_ULTRIX) 97 struct otrampframe { 98 unsigned sig; /* Signal number */ 99 unsigned code; /* Info code */ 100 vaddr_t scp; /* Pointer to struct sigcontext */ 101 unsigned r0, r1, r2, r3, r4, r5; /* Registers saved when interrupt */ 102 register_t pc; /* Address of signal handler */ 103 vaddr_t arg; /* Pointer to first (and only) sigreturn argument */ 104 }; 105 106 vaddr_t setupstack_oldsigcontext(const struct ksiginfo *, const sigset_t *, 107 int, struct lwp *, struct trapframe *, vaddr_t, int, vaddr_t); 108 #endif /* COMPAT_13 || COMPAT_ULTRIX */ 109 110 #if defined(COMPAT_16) || defined(COMPAT_ULTRIX) 111 struct trampoline2 { 112 unsigned int narg; /* Argument count (== 3) */ 113 unsigned int sig; /* Signal number */ 114 unsigned int code; /* Info code */ 115 vaddr_t scp; /* Pointer to struct sigcontext */ 116 }; 117 118 vaddr_t setupstack_sigcontext2(const struct ksiginfo *, const sigset_t *, 119 int, struct lwp *, struct trapframe *, vaddr_t, int, vaddr_t); 120 #endif /* COMPAT_16 || COMPAT_ULTRIX */ 121 122 #endif /* _KERNEL */ 123 124 #endif /* _NETBSD_SOURCE */ 125 #endif /* !_VAX_SIGNAL_H_ */ 126