00001 /* 00002 * Copyright (c) 1999-2004 Apple Computer, Inc. All rights reserved. 00003 * 00004 * @APPLE_LICENSE_HEADER_START@ 00005 * 00006 * "Portions Copyright (c) 1999 Apple Computer, Inc. All Rights 00007 * Reserved. This file contains Original Code and/or Modifications of 00008 * Original Code as defined in and that are subject to the Apple Public 00009 * Source License Version 1.0 (the 'License'). You may not use this file 00010 * except in compliance with the License. Please obtain a copy of the 00011 * License at http://www.apple.com/publicsource and read it before using 00012 * this file. 00013 * 00014 * The Original Code and all software distributed under the License are 00015 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 00016 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 00017 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 00018 * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the 00019 * License for the specific language governing rights and limitations 00020 * under the License." 00021 * 00022 * @APPLE_LICENSE_HEADER_END@ 00023 */ 00024 /* Copyright (c) 1991 NeXT Software, Inc. All rights reserved. 00025 * 00026 * File: architecture/ppc/cframe.h 00027 * Author: Mike DeMoney, NeXT Software, Inc. 00028 * 00029 * This include file defines C calling sequence defines 00030 * for ppc port. 00031 * 00032 * HISTORY 00033 * 20-May-97 Umesh Vaishampayan (umeshv@apple.com) 00034 * Added C_RED_ZONE. 00035 * 29-Dec-96 Umesh Vaishampayan (umeshv@NeXT.com) 00036 * Ported from m98k. 00037 * 11-June-91 Mike DeMoney (mike@next.com) 00038 * Created. 00039 */ 00040 00041 #ifndef _ARCH_PPC_CFRAME_H_ 00042 #define _ARCH_PPC_CFRAME_H_ 00043 00044 /* Note that these values are copies of the somewhat more authoritative 00045 * values in <architecture/ppc/mode_independent_asm.h>. We do not 00046 * include that file to avoid breaking legacy clients due to name 00047 * collisions. 00048 * 00049 * Note also that C_ARGSAVE_LEN isn't well defined or useful in PPC. 00050 * Most legacy uses of it are assuming it is the minimum stack frame 00051 * size, which is what we define it to be. 00052 */ 00053 #if defined (__ppc64__) 00054 #define C_ARGSAVE_LEN 64 /* "minimum arg save area" (but see above) */ 00055 #define C_STACK_ALIGN 32 /* stack must be 32 byte aligned */ 00056 #define C_RED_ZONE 320 /* 320 bytes to skip over saved registers */ 00057 #else 00058 #define C_ARGSAVE_LEN 32 /* "minimum arg save area" (but see above) */ 00059 #define C_STACK_ALIGN 16 /* stack must be 16 byte aligned */ 00060 #define C_RED_ZONE 224 /* 224 bytes to skip over saved registers */ 00061 #endif 00062 00063 #endif /* _ARCH_PPC_CFRAME_H_ */