projects / apple / xnu.git / blame
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|---|---|---|
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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 | * | |
| 9bccf70c | 24 | * File: mach/shared_memory_server.h |
| 1c79356b A |
25 | * |
| 26 | * protos and struct definitions for shared library | |
| 27 | * server and interface | |
| 28 | */ | |
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29 | #ifndef _MACH_SHARED_MEMORY_SERVER_H_ |
| 30 | #define _MACH_SHARED_MEMORY_SERVER_H_ | |
| 1c79356b | 31 | |
| 0b4e3aa0 | 32 | #define SHARED_LIBRARY_SERVER_SUPPORTED |
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33 | #define GLOBAL_SHARED_TEXT_SEGMENT 0x90000000 |
| 34 | #define GLOBAL_SHARED_DATA_SEGMENT 0xA0000000 | |
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35 | #define GLOBAL_SHARED_SEGMENT_MASK 0xF0000000 |
| 36 | ||
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37 | #define SHARED_TEXT_REGION_SIZE 0x10000000 |
| 38 | #define SHARED_DATA_REGION_SIZE 0x10000000 | |
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39 | #define SHARED_ALTERNATE_LOAD_BASE 0x9000000 |
| 40 | ||
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41 | /* |
| 42 | * Note: the two masks below are useful because the assumption is | |
| 43 | * made that these shared regions will always be mapped on natural boundaries | |
| 44 | * i.e. if the size is 0x10000000 the object can be mapped at | |
| 45 | * 0x20000000, or 0x30000000, but not 0x1000000 | |
| 46 | */ | |
| 47 | #define SHARED_TEXT_REGION_MASK 0xFFFFFFF | |
| 48 | #define SHARED_DATA_REGION_MASK 0xFFFFFFF | |
| 49 | ||
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50 | |
| 51 | #include <mach/vm_prot.h> | |
| 9bccf70c | 52 | #include <mach/mach_types.h> |
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53 | |
| 54 | #define SHARED_LIB_ALIAS 0x10 | |
| 55 | ||
| 56 | ||
| 57 | /* flags field aliases for copyin_shared_file and load_shared_file */ | |
| 58 | ||
| 59 | /* IN */ | |
| 60 | #define ALTERNATE_LOAD_SITE 0x1 | |
| 61 | #define NEW_LOCAL_SHARED_REGIONS 0x2 | |
| 9bccf70c | 62 | #define QUERY_IS_SYSTEM_REGION 0x4 |
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63 | |
| 64 | /* OUT */ | |
| 65 | #define SF_PREV_LOADED 0x1 | |
| 9bccf70c | 66 | #define SYSTEM_REGION_BACKED 0x2 |
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67 | |
| 68 | ||
| 69 | #define load_file_hash(file_object, size) \ | |
| 70 | ((((natural_t)file_object) & 0xffffff) % size) | |
| 71 | ||
| 72 | #define VM_PROT_COW 0x8 /* must not interfere with normal prot assignments */ | |
| 73 | #define VM_PROT_ZF 0x10 /* must not interfere with normal prot assignments */ | |
| 74 | ||
| 75 | struct sf_mapping { | |
| 76 | vm_offset_t mapping_offset; | |
| 77 | vm_size_t size; | |
| 78 | vm_offset_t file_offset; | |
| 79 | vm_prot_t protection; /* read/write/execute/COW/ZF */ | |
| 80 | vm_offset_t cksum; | |
| 81 | }; | |
| 82 | ||
| 83 | typedef struct sf_mapping sf_mapping_t; | |
| 84 | ||
| 9bccf70c | 85 | #endif /* _MACH_SHARED_MEMORY_SERVER_H_ */ |