usr/src/boot/sys/x86/include/signal.h

   1 /*-
   2  * Copyright (c) 1986, 1989, 1991, 1993
   3  *      The Regents of the University of California.  All rights reserved.
   4  * Copyright (c) 2003 Peter Wemm.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  * 1. Redistributions of source code must retain the above copyright
  10  *    notice, this list of conditions and the following disclaimer.
  11  * 2. Redistributions in binary form must reproduce the above copyright
  12  *    notice, this list of conditions and the following disclaimer in the
  13  *    documentation and/or other materials provided with the distribution.
  14  * 4. Neither the name of the University nor the names of its contributors
  15  *    may be used to endorse or promote products derived from this software
  16  *    without specific prior written permission.
  17  *
  18  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  19  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  20  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  21  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  22  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  23  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  24  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  25  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  26  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  27  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  28  * SUCH DAMAGE.
  29  *
  30  *      @(#)signal.h    8.1 (Berkeley) 6/11/93
  31  * $FreeBSD$
  32  */
  33
  34 #ifndef _X86_SIGNAL_H
  35 #define _X86_SIGNAL_H 1
  36
  37 /*
  38  * Machine-dependent signal definitions
  39  */
  40
  41 #include <sys/cdefs.h>
  42 #include <sys/_sigset.h>
  43
  44 #if __BSD_VISIBLE
  45 #include <machine/trap.h>       /* codes for SIGILL, SIGFPE */
  46 #endif
  47
  48 #ifdef __i386__
  49 typedef int sig_atomic_t;
  50
  51 #if __BSD_VISIBLE
  52 struct sigcontext {
  53         struct __sigset sc_mask;        /* signal mask to restore */
  54         int     sc_onstack;             /* sigstack state to restore */
  55         int     sc_gs;                  /* machine state (struct trapframe) */
  56         int     sc_fs;
  57         int     sc_es;
  58         int     sc_ds;
  59         int     sc_edi;
  60         int     sc_esi;
  61         int     sc_ebp;
  62         int     sc_isp;
  63         int     sc_ebx;
  64         int     sc_edx;
  65         int     sc_ecx;
  66         int     sc_eax;
  67         int     sc_trapno;
  68         int     sc_err;
  69         int     sc_eip;
  70         int     sc_cs;
  71         int     sc_efl;
  72         int     sc_esp;
  73         int     sc_ss;
  74         int     sc_len;                 /* sizeof(mcontext_t) */
  75         /*
  76          * See <machine/ucontext.h> and <machine/npx.h> for
  77          * the following fields.
  78          */
  79         int     sc_fpformat;
  80         int     sc_ownedfp;
  81         int     sc_flags;
  82         int     sc_fpstate[128] __aligned(16);
  83
  84         int     sc_fsbase;
  85         int     sc_gsbase;
  86
  87         int     sc_xfpustate;
  88         int     sc_xfpustate_len;
  89
  90         int     sc_spare2[4];
  91 };
  92
  93 #define sc_sp           sc_esp
  94 #define sc_fp           sc_ebp
  95 #define sc_pc           sc_eip
  96 #define sc_ps           sc_efl
  97 #define sc_eflags       sc_efl
  98
  99 #endif /* __BSD_VISIBLE */
 100 #endif /* __i386__ */
 101
 102 #ifdef __amd64__
 103 typedef long sig_atomic_t;
 104
 105 #if __BSD_VISIBLE
 106 /*
 107  * Information pushed on stack when a signal is delivered.
 108  * This is used by the kernel to restore state following
 109  * execution of the signal handler.  It is also made available
 110  * to the handler to allow it to restore state properly if
 111  * a non-standard exit is performed.
 112  *
 113  * The sequence of the fields/registers after sc_mask in struct
 114  * sigcontext must match those in mcontext_t and struct trapframe.
 115  */
 116 struct sigcontext {
 117         struct __sigset sc_mask;        /* signal mask to restore */
 118         long    sc_onstack;             /* sigstack state to restore */
 119         long    sc_rdi;         /* machine state (struct trapframe) */
 120         long    sc_rsi;
 121         long    sc_rdx;
 122         long    sc_rcx;
 123         long    sc_r8;
 124         long    sc_r9;
 125         long    sc_rax;
 126         long    sc_rbx;
 127         long    sc_rbp;
 128         long    sc_r10;
 129         long    sc_r11;
 130         long    sc_r12;
 131         long    sc_r13;
 132         long    sc_r14;
 133         long    sc_r15;
 134         int     sc_trapno;
 135         short   sc_fs;
 136         short   sc_gs;
 137         long    sc_addr;
 138         int     sc_flags;
 139         short   sc_es;
 140         short   sc_ds;
 141         long    sc_err;
 142         long    sc_rip;
 143         long    sc_cs;
 144         long    sc_rflags;
 145         long    sc_rsp;
 146         long    sc_ss;
 147         long    sc_len;                 /* sizeof(mcontext_t) */
 148         /*
 149          * See <machine/ucontext.h> and <machine/fpu.h> for the following
 150          * fields.
 151          */
 152         long    sc_fpformat;
 153         long    sc_ownedfp;
 154         long    sc_fpstate[64] __aligned(16);
 155
 156         long    sc_fsbase;
 157         long    sc_gsbase;
 158
 159         long    sc_xfpustate;
 160         long    sc_xfpustate_len;
 161
 162         long    sc_spare[4];
 163 };
 164 #endif /* __BSD_VISIBLE */
 165 #endif /* __amd64__ */
 166
 167 #endif