1/* 2 * Copyright (c) 2000 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, 21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 23 * Please see the License for the specific language governing rights and 24 * limitations under the License. 25 * 26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ 27 */ 28/* 29 * @OSF_COPYRIGHT@ 30 */ 31 32#ifndef _PPC_SETJMP_H_ 33#define _PPC_SETJMP_H_ 34 35/* 36 * We save the following registers (marked as non-volatile in the ELF spec) 37 * 38 * r1 - stack pointer 39 * r13 - small data area pointer 40 * r14-r30 - local variables 41 * r31 - local variable/environment pointer 42 * 43 * cr - condition register 44 * lr - link register (to know where to jump back to) 45 * xer - fixed point exception register 46 * 47 * fpscr - floating point status and control 48 * f14-f31 - local variables 49 * 50 * which comes to 57 words. We round up to 64 for good measure. 51 */ 52 53typedef struct jmp_buf { 54 int jmp_buf[64]; 55} jmp_buf_t; 56 57#endif /* _PPC_SETJMP_H_ */ 58