ucontext.h

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    1 /*-
    2  * Copyright (c) 2003 Peter Wemm
    3  * Copyright (c) 1999 Marcel Moolenaar
    4  * All rights reserved.
    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  *    in this position and unchanged.
   12  * 2. Redistributions in binary form must reproduce the above copyright
   13  *    notice, this list of conditions and the following disclaimer in the
   14  *    documentation and/or other materials provided with the distribution.
   15  * 3. The name of the author may not be used to endorse or promote products
   16  *    derived from this software without specific prior written permission.
   17  *
   18  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
   19  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   20  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
   21  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
   22  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
   23  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   24  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   25  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   26  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
   27  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   28  *
   29  * $FreeBSD$
   30  */
   31 
   32 #ifndef _MACHINE_UCONTEXT_H_
   33 #define _MACHINE_UCONTEXT_H_
   34 
   35 typedef struct __mcontext {
   36         /*
   37          * The first 20 fields must match the definition of
   38          * sigcontext. So that we can support sigcontext
   39          * and ucontext_t at the same time.
   40          */
   41         __register_t    mc_onstack;             /* XXX - sigcontext compat. */
   42         __register_t    mc_rdi;                 /* machine state (struct trapframe) */
   43         __register_t    mc_rsi;
   44         __register_t    mc_rdx;
   45         __register_t    mc_rcx;
   46         __register_t    mc_r8;
   47         __register_t    mc_r9;
   48         __register_t    mc_rax;
   49         __register_t    mc_rbx;
   50         __register_t    mc_rbp;
   51         __register_t    mc_r10;
   52         __register_t    mc_r11;
   53         __register_t    mc_r12;
   54         __register_t    mc_r13;
   55         __register_t    mc_r14;
   56         __register_t    mc_r15;
   57         __register_t    mc_trapno;
   58         __register_t    mc_addr;
   59         __register_t    mc_flags;
   60         __register_t    mc_err;
   61         __register_t    mc_rip;
   62         __register_t    mc_cs;
   63         __register_t    mc_rflags;
   64         __register_t    mc_rsp;
   65         __register_t    mc_ss;
   66 
   67         long    mc_len;                 /* sizeof(mcontext_t) */
   68 #define _MC_FPFMT_NODEV         0x10000 /* device not present or configured */
   69 #define _MC_FPFMT_XMM           0x10002
   70         long    mc_fpformat;
   71 #define _MC_FPOWNED_NONE        0x20000 /* FP state not used */
   72 #define _MC_FPOWNED_FPU         0x20001 /* FP state came from FPU */
   73 #define _MC_FPOWNED_PCB         0x20002 /* FP state came from PCB */
   74         long    mc_ownedfp;
   75         /*
   76          * See <machine/fpu.h> for the internals of mc_fpstate[].
   77          */
   78         long    mc_fpstate[64] __aligned(16);
   79         long    mc_spare[8];
   80 } mcontext_t;
   81 
   82 #endif /* !_MACHINE_UCONTEXT_H_ */

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FreeBSD/Linux Kernel Cross Reference sys/amd64/include/ucontext.h

FreeBSD/Linux Kernel Cross Reference
sys/amd64/include/ucontext.h