The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/arm/include/ucontext.h

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    1 /*      $NetBSD: mcontext.h,v 1.4 2003/10/08 22:43:01 thorpej Exp $     */
    2 
    3 /*-
    4  * SPDX-License-Identifier: BSD-2-Clause-NetBSD
    5  *
    6  * Copyright (c) 2001, 2002 The NetBSD Foundation, Inc.
    7  * All rights reserved.
    8  *
    9  * This code is derived from software contributed to The NetBSD Foundation
   10  * by Klaus Klein and by Jason R. Thorpe of Wasabi Systems, Inc.
   11  *
   12  * Redistribution and use in source and binary forms, with or without
   13  * modification, are permitted provided that the following conditions
   14  * are met:
   15  * 1. Redistributions of source code must retain the above copyright
   16  *    notice, this list of conditions and the following disclaimer.
   17  * 2. Redistributions in binary form must reproduce the above copyright
   18  *    notice, this list of conditions and the following disclaimer in the
   19  *    documentation and/or other materials provided with the distribution.
   20  *
   21  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
   22  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
   23  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
   24  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
   25  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   26  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   27  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   28  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   29  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   30  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
   31  * POSSIBILITY OF SUCH DAMAGE.
   32  *
   33  * $FreeBSD$
   34  */
   35 
   36 #ifndef _MACHINE_MCONTEXT_H_
   37 #define _MACHINE_MCONTEXT_H_
   38 /*
   39  * General register state
   40  */
   41 #define _NGREG          17
   42 typedef unsigned int    __greg_t;
   43 typedef __greg_t        __gregset_t[_NGREG];
   44 
   45 #define _REG_R0         0
   46 #define _REG_R1         1
   47 #define _REG_R2         2
   48 #define _REG_R3         3
   49 #define _REG_R4         4
   50 #define _REG_R5         5
   51 #define _REG_R6         6
   52 #define _REG_R7         7
   53 #define _REG_R8         8
   54 #define _REG_R9         9
   55 #define _REG_R10        10
   56 #define _REG_R11        11
   57 #define _REG_R12        12
   58 #define _REG_R13        13
   59 #define _REG_R14        14
   60 #define _REG_R15        15
   61 #define _REG_CPSR       16
   62 /* Convenience synonyms */
   63 #define _REG_FP         _REG_R11
   64 #define _REG_SP         _REG_R13
   65 #define _REG_LR         _REG_R14
   66 #define _REG_PC         _REG_R15
   67 
   68 /*
   69  * Floating point register state
   70  */
   71 typedef struct {
   72         __uint64_t      mcv_reg[32];
   73         __uint32_t      mcv_fpscr;
   74 } mcontext_vfp_t;
   75 
   76 typedef struct {
   77         __gregset_t     __gregs;
   78 
   79         /*
   80          * Originally, rest of this structure was named __fpu, 35 * 4 bytes
   81          * long, never accessed from kernel. 
   82          */
   83         __size_t        mc_vfp_size;
   84         void            *mc_vfp_ptr;
   85         unsigned int    mc_spare[33];
   86 } mcontext_t;
   87 
   88 #define UC_
   89 #endif  /* !_MACHINE_MCONTEXT_H_ */

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