EXTERNAL_HEADERS/architecture/ppc/cframe.h

   1 /*
   2  * Copyright (c) 2000-2004 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License. The rights granted to you under the License
  10  * may not be used to create, or enable the creation or redistribution of,
  11  * unlawful or unlicensed copies of an Apple operating system, or to
  12  * circumvent, violate, or enable the circumvention or violation of, any
  13  * terms of an Apple operating system software license agreement.
  14  *
  15  * Please obtain a copy of the License at
  16  * http://www.opensource.apple.com/apsl/ and read it before using this file.
  17  *
  18  * The Original Code and all software distributed under the License are
  19  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  20  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
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  27  */
  28 /* Copyright (c) 1991 NeXT Software, Inc.  All rights reserved.
  29  *
  30  *      File:   architecture/ppc/cframe.h
  31  *      Author: Mike DeMoney, NeXT Software, Inc.
  32  *
  33  *      This include file defines C calling sequence defines
  34  *      for ppc port.
  35  */
  36
  37 #ifndef _ARCH_PPC_CFRAME_H_
  38 #define _ARCH_PPC_CFRAME_H_
  39
  40 #if defined (__ppc64__)
  41 #define C_ARGSAVE_LEN   64      /* at least 64 bytes of arg save */
  42 #define C_STACK_ALIGN   32      /* stack must be 32 byte aligned */
  43 #define C_RED_ZONE      320     /* 320 bytes to skip over saved registers */
  44 #else
  45 #define C_ARGSAVE_LEN   32      /* at least 32 bytes of arg save */
  46 #define C_STACK_ALIGN   16      /* stack must be 16 byte aligned */
  47 #define C_RED_ZONE      224     /* 224 bytes to skip over saved registers */
  48 #endif
  49
  50 #endif  /* _ARCH_PPC_CFRAME_H_ */