sysdeps/unix/bsd/bsd4.4/kfreebsd/mips/mips64/bits/mcontext.h

   1 /* Machine-dependent processor state structure for kFreeBSD.
   2    Copyright (C) 2010 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.  mips version.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, write to the Free
  17    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  18    02111-1307 USA.  */
  19
  20 #if !defined _SYS_UCONTEXT_H
  21 # error "Never use <bits/mcontext.h> directly; include <sys/ucontext.h> instead."
  22 #endif
  23
  24 /*
  25  * Copyright (c) 1992, 1993
  26  *      The Regents of the University of California.  All rights reserved.
  27  *
  28  * This code is derived from software contributed to Berkeley by
  29  * Ralph Campbell.
  30  *
  31  * Redistribution and use in source and binary forms, with or without
  32  * modification, are permitted provided that the following conditions
  33  * are met:
  34  * 1. Redistributions of source code must retain the above copyright
  35  *    notice, this list of conditions and the following disclaimer.
  36  * 2. Redistributions in binary form must reproduce the above copyright
  37  *    notice, this list of conditions and the following disclaimer in the
  38  *    documentation and/or other materials provided with the distribution.
  39  * 4. Neither the name of the University nor the names of its contributors
  40  *    may be used to endorse or promote products derived from this software
  41  *    without specific prior written permission.
  42  *
  43  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  44  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  45  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  46  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  47  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  48  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  49  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  50  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  51  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  52  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  53  * SUCH DAMAGE.
  54  *
  55  *      @(#)ucontext.h  8.1 (Berkeley) 6/10/93
  56  *      JNPR: ucontext.h,v 1.2 2007/08/09 11:23:32 katta
  57  * $FreeBSD$
  58  */
  59
  60 typedef struct  __mcontext {
  61         /*
  62          * These fields must match the corresponding fields in struct
  63          * sigcontext which follow 'sc_mask'. That way we can support
  64          * struct sigcontext and ucontext_t at the same time.
  65          */
  66         int             mc_onstack;     /* sigstack state to restore */
  67         long int        mc_pc;          /* pc at time of signal */
  68         long int        mc_regs[32];    /* processor regs 0 to 31 */
  69         long int      sr;             /* status register */
  70         long int        mullo, mulhi;   /* mullo and mulhi registers... */
  71         int             mc_fpused;      /* fp has been used */
  72         long int        mc_fpregs[33];  /* fp regs 0 to 31 and csr */
  73         long int        mc_fpc_eir;     /* fp exception instruction reg */
  74         int     __spare__[8];   /* XXX reserved */
  75 } mcontext_t;
  76
  77 #define SZREG           4
  78
  79 /* offsets into mcontext_t */
  80 #define UCTX_REG(x)     (8 + (x)*SZREG)
  81
  82 #define UCR_ZERO        UCTX_REG(0)
  83 #define UCR_AT          UCTX_REG(1)
  84 #define UCR_V0          UCTX_REG(2)
  85 #define UCR_V1          UCTX_REG(3)
  86 #define UCR_A0          UCTX_REG(4)
  87 #define UCR_A1          UCTX_REG(5)
  88 #define UCR_A2          UCTX_REG(6)
  89 #define UCR_A3          UCTX_REG(7)
  90 #define UCR_T0          UCTX_REG(8)
  91 #define UCR_T1          UCTX_REG(9)
  92 #define UCR_T2          UCTX_REG(10)
  93 #define UCR_T3          UCTX_REG(11)
  94 #define UCR_T4          UCTX_REG(12)
  95 #define UCR_T5          UCTX_REG(13)
  96 #define UCR_T6          UCTX_REG(14)
  97 #define UCR_T7          UCTX_REG(15)
  98 #define UCR_S0          UCTX_REG(16)
  99 #define UCR_S1          UCTX_REG(17)
 100 #define UCR_S2          UCTX_REG(18)
 101 #define UCR_S3          UCTX_REG(19)
 102 #define UCR_S4          UCTX_REG(20)
 103 #define UCR_S5          UCTX_REG(21)
 104 #define UCR_S6          UCTX_REG(22)
 105 #define UCR_S7          UCTX_REG(23)
 106 #define UCR_T8          UCTX_REG(24)
 107 #define UCR_T9          UCTX_REG(25)
 108 #define UCR_K0          UCTX_REG(26)
 109 #define UCR_K1          UCTX_REG(27)
 110 #define UCR_GP          UCTX_REG(28)
 111 #define UCR_SP          UCTX_REG(29)
 112 #define UCR_S8          UCTX_REG(30)
 113 #define UCR_RA          UCTX_REG(31)
 114 #define UCR_SR          UCTX_REG(32)
 115 #define UCR_MDLO        UCTX_REG(33)
 116 #define UCR_MDHI        UCTX_REG(34)