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/frame.h

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    1 /*      $NetBSD: frame.h,v 1.5 2002/10/19 00:10:54 bjh21 Exp $  */
    2 
    3 /*-
    4  * Copyright (c) 1994-1997 Mark Brinicombe.
    5  * Copyright (c) 1994 Brini.
    6  * All rights reserved.
    7  *
    8  * This code is derived from software written for Brini by Mark Brinicombe
    9  *
   10  * Redistribution and use in source and binary forms, with or without
   11  * modification, are permitted provided that the following conditions
   12  * are met:
   13  * 1. Redistributions of source code must retain the above copyright
   14  *    notice, this list of conditions and the following disclaimer.
   15  * 2. Redistributions in binary form must reproduce the above copyright
   16  *    notice, this list of conditions and the following disclaimer in the
   17  *    documentation and/or other materials provided with the distribution.
   18  * 3. All advertising materials mentioning features or use of this software
   19  *    must display the following acknowledgement:
   20  *      This product includes software developed by Brini.
   21  * 4. The name of the company nor the name of the author may be used to
   22  *    endorse or promote products derived from this software without specific
   23  *    prior written permission.
   24  *
   25  * THIS SOFTWARE IS PROVIDED BY BRINI ``AS IS'' AND ANY EXPRESS OR IMPLIED
   26  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
   27  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
   28  * IN NO EVENT SHALL BRINI OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
   29  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
   30  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
   31  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   32  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   33  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   34  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   35  * SUCH DAMAGE.
   36  *
   37  * RiscBSD kernel project
   38  *
   39  * frame.h
   40  *
   41  * Stack frames structures
   42  *
   43  * Created      : 30/09/94
   44  *
   45  * $FreeBSD: releng/11.1/sys/arm/include/frame.h 317005 2017-04-16 07:33:47Z mmel $
   46  *
   47  */
   48 
   49 #ifndef _MACHINE_FRAME_H_
   50 #define _MACHINE_FRAME_H_
   51 
   52 #ifndef _LOCORE
   53 
   54 #include <sys/signal.h>
   55 #include <sys/ucontext.h>
   56 
   57 
   58 /*
   59  * Trap frame.  Pushed onto the kernel stack on a trap (synchronous exception).
   60  */
   61 
   62 struct trapframe {
   63         register_t tf_spsr; /* Zero on arm26 */
   64         register_t tf_r0;
   65         register_t tf_r1;
   66         register_t tf_r2;
   67         register_t tf_r3;
   68         register_t tf_r4;
   69         register_t tf_r5;
   70         register_t tf_r6;
   71         register_t tf_r7;
   72         register_t tf_r8;
   73         register_t tf_r9;
   74         register_t tf_r10;
   75         register_t tf_r11;
   76         register_t tf_r12;
   77         register_t tf_usr_sp;
   78         register_t tf_usr_lr;
   79         register_t tf_svc_sp; /* Not used on arm26 */
   80         register_t tf_svc_lr; /* Not used on arm26 */
   81         register_t tf_pc;
   82         register_t tf_pad;
   83 };
   84 
   85 /* Register numbers */
   86 #define tf_r13 tf_usr_sp
   87 #define tf_r14 tf_usr_lr
   88 #define tf_r15 tf_pc
   89 
   90 /*
   91  * Signal frame.  Pushed onto user stack before calling sigcode.
   92  * The pointers are used in the trampoline code to locate the ucontext.
   93  */
   94 struct sigframe {
   95         siginfo_t       sf_si;          /* actual saved siginfo */
   96         ucontext_t      sf_uc;          /* actual saved ucontext */
   97         mcontext_vfp_t  sf_vfp;         /* actual saved VFP context */
   98 };
   99 
  100 
  101 /*
  102  * Switch frame.
  103  *
  104  * It is important this is a multiple of 8 bytes so the stack is correctly
  105  * aligned when we create new threads.
  106  */
  107 struct switchframe
  108 {
  109         register_t sf_r4;
  110         register_t sf_r5;
  111         register_t sf_r6;
  112         register_t sf_r7;
  113         register_t sf_r8;
  114         register_t sf_r9;
  115         register_t sf_r10;
  116         register_t sf_r11;
  117         register_t sf_r12;
  118         register_t sf_sp;
  119         register_t sf_lr;
  120         register_t sf_pc;
  121 #if __ARM_ARCH >= 6
  122         register_t sf_tpidrurw;
  123         register_t sf_spare0;
  124 #endif
  125 };
  126 
  127 
  128 /*
  129  * Stack frame. Used during stack traces (db_trace.c)
  130  */
  131 struct frame {
  132         u_int   fr_fp;
  133         u_int   fr_sp;
  134         u_int   fr_lr;
  135         u_int   fr_pc;
  136 };
  137 
  138 #endif /* !_LOCORE */
  139 
  140 #endif /* _MACHINE_FRAME_H_ */

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