ucontext.h

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    1 /*-
    2  * SPDX-License-Identifier: BSD-4-Clause
    3  *
    4  * Copyright (C) 1995, 1996 Wolfgang Solfrank.
    5  * Copyright (C) 1995, 1996 TooLs GmbH.
    6  * All rights reserved.
    7  *
    8  * Redistribution and use in source and binary forms, with or without
    9  * modification, are permitted provided that the following conditions
   10  * are met:
   11  * 1. Redistributions of source code must retain the above copyright
   12  *    notice, this list of conditions and the following disclaimer.
   13  * 2. Redistributions in binary form must reproduce the above copyright
   14  *    notice, this list of conditions and the following disclaimer in the
   15  *    documentation and/or other materials provided with the distribution.
   16  * 3. All advertising materials mentioning features or use of this software
   17  *    must display the following acknowledgement:
   18  *      This product includes software developed by TooLs GmbH.
   19  * 4. The name of TooLs GmbH may not be used to endorse or promote products
   20  *    derived from this software without specific prior written permission.
   21  *
   22  * THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``AS IS'' AND ANY EXPRESS OR
   23  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   24  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
   25  * IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
   26  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
   27  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
   28  * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
   29  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
   30  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
   31  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   32  *
   33  * $NetBSD: signal.h,v 1.4 1998/09/14 02:48:34 thorpej Exp $
   34  * $FreeBSD$
   35  */
   36 
   37 #ifndef _MACHINE_UCONTEXT_H_
   38 #define _MACHINE_UCONTEXT_H_
   39 
   40 typedef struct __mcontext {
   41         int             mc_vers;
   42         int             mc_flags;
   43 #define _MC_FP_VALID    0x01
   44 #define _MC_AV_VALID    0x02
   45         int             mc_onstack;             /* saved onstack flag */
   46         int             mc_len;                 /* sizeof(__mcontext) */
   47         __uint64_t      mc_avec[32*2];          /* vector register file */
   48         __uint32_t      mc_av[2];
   49         __register_t    mc_frame[42];
   50         __uint64_t      mc_fpreg[33];
   51         __uint64_t      mc_vsxfpreg[32];        /* low-order half of VSR0-31 */
   52 } mcontext_t __aligned(16);
   53 
   54 #if defined(_KERNEL) && defined(__powerpc64__)
   55 typedef struct __mcontext32 {
   56         int             mc_vers;
   57         int             mc_flags;
   58 #define _MC_FP_VALID    0x01
   59 #define _MC_AV_VALID    0x02
   60         int             mc_onstack;             /* saved onstack flag */
   61         int             mc_len;                 /* sizeof(__mcontext) */
   62         uint64_t        mc_avec[32*2];          /* vector register file */
   63         uint32_t        mc_av[2];
   64         uint32_t        mc_frame[42];
   65         uint64_t        mc_fpreg[33];
   66         uint64_t        mc_vsxfpreg[32];        /* low-order half of VSR0-31 */
   67 } mcontext32_t __aligned(16);
   68 #endif
   69 
   70 /* GPRs and supervisor-level regs */
   71 #define mc_gpr          mc_frame
   72 #define mc_lr           mc_frame[32]
   73 #define mc_cr           mc_frame[33]
   74 #define mc_xer          mc_frame[34]
   75 #define mc_ctr          mc_frame[35]
   76 #define mc_srr0         mc_frame[36]
   77 #define mc_srr1         mc_frame[37]
   78 #define mc_exc          mc_frame[38]
   79 #define mc_dar          mc_frame[39]
   80 #define mc_dsisr        mc_frame[40]
   81 
   82 /* floating-point state */
   83 #define mc_fpscr        mc_fpreg[32]
   84 
   85 /* altivec state */
   86 #define mc_vscr         mc_av[0]
   87 #define mc_vrsave       mc_av[1]
   88 
   89 #define _MC_VERSION     0x1
   90 #define _MC_VERSION_KSE 0xee    /* partial ucontext for libpthread */
   91 
   92 #endif  /* !_MACHINE_UCONTEXT_H_ */

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

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