projects / apple / xnu.git / blame
| Commit | Line | Data |
|---|---|---|
| 1c79356b A |
1 | /* |
| 2 | * Copyright (c) 2000 Apple Computer, Inc. All rights reserved. | |
| 3 | * | |
| 4 | * @APPLE_LICENSE_HEADER_START@ | |
| 5 | * | |
| 43866e37 | 6 | * Copyright (c) 1999-2003 Apple Computer, Inc. All Rights Reserved. |
| 1c79356b | 7 | * |
| 43866e37 A |
8 | * This file contains Original Code and/or Modifications of Original Code |
| 9 | * as defined in and that are subject to the Apple Public Source License | |
| 10 | * Version 2.0 (the 'License'). You may not use this file except in | |
| 11 | * compliance with the License. Please obtain a copy of the License at | |
| 12 | * http://www.opensource.apple.com/apsl/ and read it before using this | |
| 13 | * file. | |
| 14 | * | |
| 15 | * The Original Code and all software distributed under the License are | |
| 16 | * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER | |
| 1c79356b A |
17 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, |
| 18 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, | |
| 43866e37 A |
19 | * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. |
| 20 | * Please see the License for the specific language governing rights and | |
| 21 | * limitations under the License. | |
| 1c79356b A |
22 | * |
| 23 | * @APPLE_LICENSE_HEADER_END@ | |
| 24 | */ | |
| 25 | /* | |
| 26 | * @OSF_COPYRIGHT@ | |
| 27 | */ | |
| 28 | ||
| 29 | #ifndef _PPC_SETJMP_H_ | |
| 30 | #define _PPC_SETJMP_H_ | |
| 31 | ||
| 32 | /* | |
| 33 | * We save the following registers (marked as non-volatile in the ELF spec) | |
| 34 | * | |
| 35 | * r1 - stack pointer | |
| 36 | * r13 - small data area pointer | |
| 37 | * r14-r30 - local variables | |
| 38 | * r31 - local variable/environment pointer | |
| 39 | * | |
| 40 | * cr - condition register | |
| 41 | * lr - link register (to know where to jump back to) | |
| 42 | * xer - fixed point exception register | |
| 43 | * | |
| 44 | * fpscr - floating point status and control | |
| 45 | * f14-f31 - local variables | |
| 46 | * | |
| 47 | * which comes to 57 words. We round up to 64 for good measure. | |
| 48 | */ | |
| 49 | ||
| 50 | typedef struct jmp_buf { | |
| 51 | int jmp_buf[64]; | |
| 52 | } jmp_buf_t; | |
| 53 | ||
| 54 | #endif /* _PPC_SETJMP_H_ */ |