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/i386/include/ucontext.h

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    1 /*-
    2  * Copyright (c) 1999 Marcel Moolenaar
    3  * All rights reserved.
    4  *
    5  * Redistribution and use in source and binary forms, with or without
    6  * modification, are permitted provided that the following conditions
    7  * are met:
    8  * 1. Redistributions of source code must retain the above copyright
    9  *    notice, this list of conditions and the following disclaimer 
   10  *    in this position and unchanged.
   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  * 3. The name of the author may not be used to endorse or promote products
   15  *    derived from this software without specific prior written permission.
   16  *
   17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
   18  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   19  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
   20  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
   21  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
   22  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   23  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   24  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
   26  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   27  *
   28  * $FreeBSD$
   29  */
   30 
   31 #ifndef _MACHINE_UCONTEXT_H_
   32 #define _MACHINE_UCONTEXT_H_
   33 
   34 #if defined(_KERNEL) && defined(COMPAT_FREEBSD4)
   35 struct mcontext4 {
   36         __register_t    mc_onstack;     /* XXX - sigcontext compat. */
   37         __register_t    mc_gs;          /* machine state (struct trapframe) */
   38         __register_t    mc_fs;
   39         __register_t    mc_es;
   40         __register_t    mc_ds;
   41         __register_t    mc_edi;
   42         __register_t    mc_esi;
   43         __register_t    mc_ebp;
   44         __register_t    mc_isp;
   45         __register_t    mc_ebx;
   46         __register_t    mc_edx;
   47         __register_t    mc_ecx;
   48         __register_t    mc_eax;
   49         __register_t    mc_trapno;
   50         __register_t    mc_err;
   51         __register_t    mc_eip;
   52         __register_t    mc_cs;
   53         __register_t    mc_eflags;
   54         __register_t    mc_esp;         /* machine state */
   55         __register_t    mc_ss;
   56         __register_t    mc_fpregs[28];  /* env87 + fpacc87 + u_long */
   57         __register_t    __spare__[17];
   58 };
   59 #endif
   60 
   61 #include <x86/ucontext.h>
   62 
   63 #endif /* !_MACHINE_UCONTEXT_H_ */

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