| 1 | /*
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| 2 | * Copyright (c) 1986, 1989, 1991, 1993
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| 3 | * The Regents of the University of California. All rights reserved.
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| 4 | *
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| 5 | * Redistribution and use in source and binary forms, with or without
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| 6 | * modification, are permitted provided that the following conditions
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| 7 | * are met:
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| 8 | * 1. Redistributions of source code must retain the above copyright
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| 9 | * notice, this list of conditions and the following disclaimer.
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| 10 | * 2. Redistributions in binary form must reproduce the above copyright
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| 11 | * notice, this list of conditions and the following disclaimer in the
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| 12 | * documentation and/or other materials provided with the distribution.
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| 13 | * 3. All advertising materials mentioning features or use of this software
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| 14 | * must display the following acknowledgement:
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| 15 | * This product includes software developed by the University of
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| 16 | * California, Berkeley and its contributors.
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| 17 | * 4. Neither the name of the University nor the names of its contributors
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| 18 | * may be used to endorse or promote products derived from this software
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| 19 | * without specific prior written permission.
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| 20 | *
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| 21 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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| 22 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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| 23 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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| 24 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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| 25 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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| 26 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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| 27 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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| 28 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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| 29 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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| 30 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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| 31 | * SUCH DAMAGE.
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| 32 | *
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| 33 | * @(#)signal.h 8.1 (Berkeley) 6/11/93
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| 34 | * $FreeBSD: src/sys/i386/include/signal.h,v 1.20 2002/12/02 19:58:55 deischen Exp $
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| 35 | */
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| 36 |
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| 37 | /** @file
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| 38 | * FreeBSD 5.1
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| 39 | */
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| 40 |
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| 41 | #ifndef _MACHINE_SIGNAL_H_
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| 42 | #define _MACHINE_SIGNAL_H_
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| 43 |
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| 44 | #include <sys/cdefs.h>
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| 45 | #include <sys/_sigset.h>
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| 46 |
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| 47 | /*
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| 48 | * Machine-dependent signal definitions
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| 49 | */
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| 50 |
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| 51 | typedef int sig_atomic_t;
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| 52 |
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| 53 | #if __XSI_VISIBLE
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| 54 | /*
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| 55 | * Minimum signal stack size. The current signal frame
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| 56 | * for i386 is 408 bytes large.
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| 57 | */
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| 58 | #define MINSIGSTKSZ (512 * 4)
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| 59 | #endif
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| 60 |
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| 61 | #if __BSD_VISIBLE
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| 62 | #include <machine/trap.h> /* codes for SIGILL, SIGFPE */
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| 63 |
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| 64 | /*
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| 65 | * Only the kernel should need these old type definitions.
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| 66 | */
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| 67 | #if defined(_KERNEL) && defined(COMPAT_43)
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| 68 | /*
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| 69 | * Information pushed on stack when a signal is delivered.
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| 70 | * This is used by the kernel to restore state following
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| 71 | * execution of the signal handler. It is also made available
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| 72 | * to the handler to allow it to restore state properly if
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| 73 | * a non-standard exit is performed.
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| 74 | */
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| 75 | struct osigcontext {
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| 76 | int sc_onstack; /* sigstack state to restore */
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| 77 | osigset_t sc_mask; /* signal mask to restore */
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| 78 | int sc_esp; /* machine state follows: */
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| 79 | int sc_ebp;
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| 80 | int sc_isp;
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| 81 | int sc_eip;
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| 82 | int sc_efl;
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| 83 | int sc_es;
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| 84 | int sc_ds;
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| 85 | int sc_cs;
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| 86 | int sc_ss;
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| 87 | int sc_edi;
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| 88 | int sc_esi;
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| 89 | int sc_ebx;
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| 90 | int sc_edx;
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| 91 | int sc_ecx;
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| 92 | int sc_eax;
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| 93 | int sc_gs;
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| 94 | int sc_fs;
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| 95 | int sc_trapno;
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| 96 | int sc_err;
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| 97 | };
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| 98 | #endif
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| 99 |
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| 100 | /*
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| 101 | * The sequence of the fields/registers in struct sigcontext should match
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| 102 | * those in mcontext_t.
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| 103 | */
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| 104 | struct sigcontext {
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| 105 | struct __sigset sc_mask; /* signal mask to restore */
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| 106 | int sc_onstack; /* sigstack state to restore */
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| 107 | int sc_gs; /* machine state (struct trapframe) */
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| 108 | int sc_fs;
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| 109 | int sc_es;
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| 110 | int sc_ds;
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| 111 | int sc_edi;
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| 112 | int sc_esi;
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| 113 | int sc_ebp;
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| 114 | int sc_isp;
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| 115 | int sc_ebx;
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| 116 | int sc_edx;
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| 117 | int sc_ecx;
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| 118 | int sc_eax;
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| 119 | int sc_trapno;
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| 120 | int sc_err;
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| 121 | int sc_eip;
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| 122 | int sc_cs;
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| 123 | int sc_efl;
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| 124 | int sc_esp;
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| 125 | int sc_ss;
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| 126 | int sc_len; /* sizeof(mcontext_t) */
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| 127 | /*
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| 128 | * XXX - See <machine/ucontext.h> and <machine/npx.h> for
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| 129 | * the following fields.
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| 130 | */
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| 131 | int sc_fpformat;
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| 132 | int sc_ownedfp;
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| 133 | int sc_spare1[1];
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| 134 | int sc_fpstate[128] __aligned(16);
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| 135 | int sc_spare2[8];
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| 136 | };
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| 137 |
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| 138 | #define sc_sp sc_esp
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| 139 | #define sc_fp sc_ebp
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| 140 | #define sc_pc sc_eip
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| 141 | #define sc_ps sc_efl
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| 142 | #define sc_eflags sc_efl
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| 143 |
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| 144 | #endif /* __BSD_VISIBLE */
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| 145 |
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| 146 | #endif /* !_MACHINE_SIGNAL_H_ */
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