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1 | #ifndef _BABELTRACE_COMPAT_MMAN_H |
2 | #define _BABELTRACE_COMPAT_MMAN_H | |
3 | ||
4 | /* | |
8f76831a | 5 | * Copyright (C) 2015-2016 Michael Jeanson <mjeanson@efficios.com> |
5d620f61 MJ |
6 | * |
7 | * Permission is hereby granted, free of charge, to any person obtaining a copy | |
8 | * of this software and associated documentation files (the "Software"), to deal | |
9 | * in the Software without restriction, including without limitation the rights | |
10 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
11 | * copies of the Software, and to permit persons to whom the Software is | |
12 | * furnished to do so, subject to the following conditions: | |
13 | * | |
14 | * The above copyright notice and this permission notice shall be included in | |
15 | * all copies or substantial portions of the Software. | |
16 | * | |
17 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
18 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
19 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | |
20 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
21 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
22 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |
23 | * SOFTWARE. | |
24 | */ | |
25 | ||
a555e971 | 26 | #ifdef __MINGW32__ |
8f76831a MJ |
27 | |
28 | #include <sys/types.h> | |
29 | ||
30 | #define PROT_NONE 0x0 | |
31 | #define PROT_READ 0x1 | |
32 | #define PROT_WRITE 0x2 | |
33 | #define PROT_EXEC 0x4 | |
34 | ||
35 | #define MAP_FILE 0 | |
36 | #define MAP_SHARED 1 | |
37 | #define MAP_PRIVATE 2 | |
38 | #define MAP_TYPE 0xF | |
39 | #define MAP_FIXED 0x10 | |
40 | #define MAP_ANONYMOUS 0x20 | |
41 | #define MAP_ANON MAP_ANONYMOUS | |
42 | #define MAP_FAILED ((void *) -1) | |
43 | ||
7b7d8091 JG |
44 | /* |
45 | * Note that some platforms (e.g. Windows) do not allow read-only | |
46 | * mappings to exceed the file's size (even within a page). | |
47 | */ | |
a555e971 | 48 | void *bt_mmap(void *addr, size_t length, int prot, int flags, int fd, |
c8d7667f | 49 | off_t offset, int log_level); |
8f76831a | 50 | |
a555e971 MJ |
51 | int bt_munmap(void *addr, size_t length); |
52 | ||
c8ebf034 MJ |
53 | /* |
54 | * On Windows the memory mapping offset must be aligned to the memory | |
55 | * allocator allocation granularity and not the page size. | |
56 | */ | |
57 | size_t bt_mmap_get_offset_align_size(int log_level); | |
58 | ||
a555e971 MJ |
59 | #else /* __MINGW32__ */ |
60 | ||
61 | #include <sys/mman.h> | |
c8ebf034 | 62 | #include "common/common.h" |
a555e971 MJ |
63 | |
64 | static inline | |
65 | void *bt_mmap(void *addr, size_t length, int prot, int flags, int fd, | |
c8d7667f | 66 | off_t offset, int log_level) |
a555e971 MJ |
67 | { |
68 | return (void *) mmap(addr, length, prot, flags, fd, offset); | |
69 | } | |
70 | ||
71 | static inline | |
72 | int bt_munmap(void *addr, size_t length) | |
73 | { | |
74 | return munmap(addr, length); | |
75 | } | |
c8ebf034 MJ |
76 | |
77 | /* | |
78 | * On other platforms the memory mapping offset must be aligned to the | |
79 | * page size. | |
80 | */ | |
81 | static inline | |
82 | size_t bt_mmap_get_offset_align_size(int log_level) | |
83 | { | |
84 | return bt_common_get_page_size(log_level); | |
85 | } | |
8f76831a MJ |
86 | #endif /* __MINGW32__ */ |
87 | ||
5d620f61 MJ |
88 | #ifndef MAP_ANONYMOUS |
89 | # ifdef MAP_ANON | |
90 | # define MAP_ANONYMOUS MAP_ANON | |
91 | # endif | |
92 | #endif | |
93 | ||
94 | #endif /* _BABELTRACE_COMPAT_MMAN_H */ |