EXTERNAL_HEADERS/architecture/ppc/cframe.h

   1 /*
   2  * Copyright (c) 2000-2004 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * The contents of this file constitute Original Code as defined in and
   7  * are subject to the Apple Public Source License Version 1.1 (the
   8  * "License").  You may not use this file except in compliance with the
   9  * License.  Please obtain a copy of the License at
  10  * http://www.apple.com/publicsource and read it before using this file.
  11  *
  12  * This Original Code and all software distributed under the License are
  13  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  14  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  15  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
  17  * License for the specific language governing rights and limitations
  18  * under the License.
  19  *
  20  * @APPLE_LICENSE_HEADER_END@
  21  */
  22 /* Copyright (c) 1991 NeXT Software, Inc.  All rights reserved.
  23  *
  24  *      File:   architecture/ppc/cframe.h
  25  *      Author: Mike DeMoney, NeXT Software, Inc.
  26  *
  27  *      This include file defines C calling sequence defines
  28  *      for ppc port.
  29  */
  30
  31 #ifndef _ARCH_PPC_CFRAME_H_
  32 #define _ARCH_PPC_CFRAME_H_
  33
  34 #if defined (__ppc64__)
  35 #define C_ARGSAVE_LEN   64      /* at least 64 bytes of arg save */
  36 #define C_STACK_ALIGN   32      /* stack must be 32 byte aligned */
  37 #define C_RED_ZONE      320     /* 320 bytes to skip over saved registers */
  38 #else
  39 #define C_ARGSAVE_LEN   32      /* at least 32 bytes of arg save */
  40 #define C_STACK_ALIGN   16      /* stack must be 16 byte aligned */
  41 #define C_RED_ZONE      224     /* 224 bytes to skip over saved registers */
  42 #endif
  43
  44 #endif  /* _ARCH_PPC_CFRAME_H_ */