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/mips/include/abi.h

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    1 /*      $NetBSD: asm.h,v 1.29 2000/12/14 21:29:51 jeffs Exp $   */
    2 
    3 /*
    4  * SPDX-License-Identifier: BSD-3-Clause
    5  *
    6  * Copyright (c) 1992, 1993
    7  *      The Regents of the University of California.  All rights reserved.
    8  *
    9  * This code is derived from software contributed to Berkeley by
   10  * Ralph Campbell.
   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  * 3. Neither the name of the University nor the names of its contributors
   21  *    may be used to endorse or promote products derived from this software
   22  *    without specific prior written permission.
   23  *
   24  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
   25  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   26  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   27  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
   28  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   29  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   30  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   31  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   32  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   33  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   34  * SUCH DAMAGE.
   35  *
   36  *      @(#)machAsmDefs.h       8.1 (Berkeley) 6/10/93
   37  *      JNPR: asm.h,v 1.10 2007/08/09 11:23:32 katta
   38  * $FreeBSD$
   39  */
   40 
   41 /*
   42  * machAsmDefs.h --
   43  *
   44  *      Macros used when writing assembler programs.
   45  *
   46  *      Copyright (C) 1989 Digital Equipment Corporation.
   47  *      Permission to use, copy, modify, and distribute this software and
   48  *      its documentation for any purpose and without fee is hereby granted,
   49  *      provided that the above copyright notice appears in all copies.
   50  *      Digital Equipment Corporation makes no representations about the
   51  *      suitability of this software for any purpose.  It is provided "as is"
   52  *      without express or implied warranty.
   53  *
   54  * from: Header: /sprite/src/kernel/mach/ds3100.md/RCS/machAsmDefs.h,
   55  *      v 1.2 89/08/15 18:28:24 rab Exp  SPRITE (DECWRL)
   56  */
   57 
   58 #ifndef _MACHINE_ABI_H_
   59 #define _MACHINE_ABI_H_
   60 
   61 #if defined(__mips_o32)
   62 #define SZREG   4
   63 #else
   64 #define SZREG   8
   65 #endif
   66 
   67 #if defined(__mips_o32) || defined(__mips_o64)
   68 #define STACK_ALIGN     8
   69 #else
   70 #define STACK_ALIGN     16
   71 #endif
   72 
   73 /*
   74  *  standard callframe {
   75  *      register_t cf_pad[N];           o32/64 (N=0), n32 (N=1) n64 (N=1)
   76  *      register_t cf_args[4];          arg0 - arg3 (only on o32 and o64)
   77  *      register_t cf_gp;               global pointer (only on n32 and n64)
   78  *      register_t cf_sp;               frame pointer
   79  *      register_t cf_ra;               return address
   80  *  };
   81  */
   82 #if defined(__mips_o32) || defined(__mips_o64)
   83 #define CALLFRAME_SIZ   (SZREG * (4 + 2))
   84 #define CALLFRAME_S0    0
   85 #elif defined(__mips_n32) || defined(__mips_n64)
   86 #define CALLFRAME_SIZ   (SZREG * 4)
   87 #define CALLFRAME_S0    (CALLFRAME_SIZ - 4 * SZREG)
   88 #endif
   89 #ifndef _KERNEL
   90 #define CALLFRAME_GP    (CALLFRAME_SIZ - 3 * SZREG)
   91 #endif
   92 #define CALLFRAME_SP    (CALLFRAME_SIZ - 2 * SZREG)
   93 #define CALLFRAME_RA    (CALLFRAME_SIZ - 1 * SZREG)
   94 
   95 #endif /* !_MACHINE_ABI_H_ */

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