projects / apple / xnu.git / blame
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|---|---|---|
| 1c79356b A |
1 | /* |
| 2 | * Copyright (c) 2000 Apple Computer, Inc. All rights reserved. | |
| 3 | * | |
| 4 | * @APPLE_LICENSE_HEADER_START@ | |
| 5 | * | |
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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. | |
| 1c79356b | 11 | * |
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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 | |
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14 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, |
| 15 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, | |
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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. | |
| 1c79356b A |
19 | * |
| 20 | * @APPLE_LICENSE_HEADER_END@ | |
| 21 | */ | |
| 22 | /* | |
| 23 | * @OSF_COPYRIGHT@ | |
| 24 | */ | |
| 25 | ||
| 26 | /* | |
| 27 | * File: machine/thread.h | |
| 28 | * | |
| 29 | * This file contains the structure definitions for the thread | |
| 30 | * state as applied to PPC processors. | |
| 31 | */ | |
| 32 | ||
| 33 | #ifndef _PPC_THREAD_H_ | |
| 34 | #define _PPC_THREAD_H_ | |
| 35 | ||
| 36 | #include <mach/machine/vm_types.h> | |
| 37 | ||
| 38 | /* | |
| 39 | * Return address of the function that called current function, given | |
| 40 | * address of the first parameter of current function. We can't | |
| 41 | * do it this way, since parameter was copied from a register | |
| 42 | * into a local variable. Call an assembly sub-function to | |
| 43 | * return this. | |
| 44 | */ | |
| 45 | ||
| 46 | extern vm_offset_t getrpc(void); | |
| 47 | #define GET_RETURN_PC(addr) getrpc() | |
| 48 | ||
| 49 | #define STACK_IKS(stack) \ | |
| 50 | ((vm_offset_t)(((vm_offset_t)stack)+KERNEL_STACK_SIZE)-FM_SIZE) | |
| 51 | ||
| 52 | #define syscall_emulation_sync(task) /* do nothing */ | |
| 53 | ||
| 54 | /* | |
| 55 | * Defining this indicates that MD code will supply an exception() | |
| 56 | * routine, conformant with kern/exception.c (dependency alert!) | |
| 57 | * but which does wonderfully fast, machine-dependent magic. | |
| 58 | */ | |
| 59 | ||
| 60 | #define MACHINE_FAST_EXCEPTION 1 | |
| 61 | ||
| 62 | #endif /* _PPC_THREAD_H_ */ | |
| 63 | ||
| 64 |