1 | // Copyright (c) 2006, Google Inc. |
2 | // All rights reserved. |
3 | // |
4 | // Redistribution and use in source and binary forms, with or without |
5 | // modification, are permitted provided that the following conditions are |
6 | // met: |
7 | // |
8 | // * Redistributions of source code must retain the above copyright |
9 | // notice, this list of conditions and the following disclaimer. |
10 | // * Redistributions in binary form must reproduce the above |
11 | // copyright notice, this list of conditions and the following disclaimer |
12 | // in the documentation and/or other materials provided with the |
13 | // distribution. |
14 | // * Neither the name of Google Inc. nor the names of its |
15 | // contributors may be used to endorse or promote products derived from |
16 | // this software without specific prior written permission. |
17 | // |
18 | // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
19 | // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
20 | // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
21 | // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
22 | // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
23 | // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
24 | // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
25 | // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
26 | // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
27 | // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
28 | // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
29 | |
30 | // macho_utilties.cc: Utilities for dealing with mach-o files |
31 | // |
32 | // Author: Dave Camp |
33 | |
34 | #include "common/mac/byteswap.h" |
35 | #include "common/mac/macho_utilities.h" |
36 | |
37 | #include <mach-o/fat.h> |
38 | #include <mach-o/loader.h> |
39 | |
40 | void breakpad_swap_uuid_command(struct breakpad_uuid_command *uc) { |
41 | uc->cmd = ByteSwap(uc->cmd); |
42 | uc->cmdsize = ByteSwap(uc->cmdsize); |
43 | } |
44 | |
45 | void breakpad_swap_load_command(struct load_command *lc) { |
46 | lc->cmd = ByteSwap(lc->cmd); |
47 | lc->cmdsize = ByteSwap(lc->cmdsize); |
48 | } |
49 | |
50 | void breakpad_swap_dylib_command(struct dylib_command *dc) { |
51 | dc->cmd = ByteSwap(dc->cmd); |
52 | dc->cmdsize = ByteSwap(dc->cmdsize); |
53 | |
54 | dc->dylib.name.offset = ByteSwap(dc->dylib.name.offset); |
55 | dc->dylib.timestamp = ByteSwap(dc->dylib.timestamp); |
56 | dc->dylib.current_version = ByteSwap(dc->dylib.current_version); |
57 | dc->dylib.compatibility_version = ByteSwap(dc->dylib.compatibility_version); |
58 | } |
59 | |
60 | void breakpad_swap_segment_command(struct segment_command *sc) { |
61 | sc->cmd = ByteSwap(sc->cmd); |
62 | sc->cmdsize = ByteSwap(sc->cmdsize); |
63 | |
64 | sc->vmaddr = ByteSwap(sc->vmaddr); |
65 | sc->vmsize = ByteSwap(sc->vmsize); |
66 | sc->fileoff = ByteSwap(sc->fileoff); |
67 | sc->filesize = ByteSwap(sc->filesize); |
68 | sc->maxprot = ByteSwap(sc->maxprot); |
69 | sc->initprot = ByteSwap(sc->initprot); |
70 | sc->nsects = ByteSwap(sc->nsects); |
71 | sc->flags = ByteSwap(sc->flags); |
72 | } |
73 | |
74 | void breakpad_swap_segment_command_64(struct segment_command_64 *sg) { |
75 | sg->cmd = ByteSwap(sg->cmd); |
76 | sg->cmdsize = ByteSwap(sg->cmdsize); |
77 | |
78 | sg->vmaddr = ByteSwap(sg->vmaddr); |
79 | sg->vmsize = ByteSwap(sg->vmsize); |
80 | sg->fileoff = ByteSwap(sg->fileoff); |
81 | sg->filesize = ByteSwap(sg->filesize); |
82 | |
83 | sg->maxprot = ByteSwap(sg->maxprot); |
84 | sg->initprot = ByteSwap(sg->initprot); |
85 | sg->nsects = ByteSwap(sg->nsects); |
86 | sg->flags = ByteSwap(sg->flags); |
87 | } |
88 | |
89 | void (struct fat_header *fh) { |
90 | fh->magic = ByteSwap(fh->magic); |
91 | fh->nfat_arch = ByteSwap(fh->nfat_arch); |
92 | } |
93 | |
94 | void breakpad_swap_fat_arch(struct fat_arch *fa, uint32_t narchs) { |
95 | for (uint32_t i = 0; i < narchs; ++i) { |
96 | fa[i].cputype = ByteSwap(fa[i].cputype); |
97 | fa[i].cpusubtype = ByteSwap(fa[i].cpusubtype); |
98 | fa[i].offset = ByteSwap(fa[i].offset); |
99 | fa[i].size = ByteSwap(fa[i].size); |
100 | fa[i].align = ByteSwap(fa[i].align); |
101 | } |
102 | } |
103 | |
104 | void (struct mach_header *mh) { |
105 | mh->magic = ByteSwap(mh->magic); |
106 | mh->cputype = ByteSwap(mh->cputype); |
107 | mh->cpusubtype = ByteSwap(mh->cpusubtype); |
108 | mh->filetype = ByteSwap(mh->filetype); |
109 | mh->ncmds = ByteSwap(mh->ncmds); |
110 | mh->sizeofcmds = ByteSwap(mh->sizeofcmds); |
111 | mh->flags = ByteSwap(mh->flags); |
112 | } |
113 | |
114 | void (struct mach_header_64 *mh) { |
115 | mh->magic = ByteSwap(mh->magic); |
116 | mh->cputype = ByteSwap(mh->cputype); |
117 | mh->cpusubtype = ByteSwap(mh->cpusubtype); |
118 | mh->filetype = ByteSwap(mh->filetype); |
119 | mh->ncmds = ByteSwap(mh->ncmds); |
120 | mh->sizeofcmds = ByteSwap(mh->sizeofcmds); |
121 | mh->flags = ByteSwap(mh->flags); |
122 | mh->reserved = ByteSwap(mh->reserved); |
123 | } |
124 | |
125 | void breakpad_swap_section(struct section *s, |
126 | uint32_t nsects) { |
127 | for (uint32_t i = 0; i < nsects; i++) { |
128 | s[i].addr = ByteSwap(s[i].addr); |
129 | s[i].size = ByteSwap(s[i].size); |
130 | |
131 | s[i].offset = ByteSwap(s[i].offset); |
132 | s[i].align = ByteSwap(s[i].align); |
133 | s[i].reloff = ByteSwap(s[i].reloff); |
134 | s[i].nreloc = ByteSwap(s[i].nreloc); |
135 | s[i].flags = ByteSwap(s[i].flags); |
136 | s[i].reserved1 = ByteSwap(s[i].reserved1); |
137 | s[i].reserved2 = ByteSwap(s[i].reserved2); |
138 | } |
139 | } |
140 | |
141 | void breakpad_swap_section_64(struct section_64 *s, |
142 | uint32_t nsects) { |
143 | for (uint32_t i = 0; i < nsects; i++) { |
144 | s[i].addr = ByteSwap(s[i].addr); |
145 | s[i].size = ByteSwap(s[i].size); |
146 | |
147 | s[i].offset = ByteSwap(s[i].offset); |
148 | s[i].align = ByteSwap(s[i].align); |
149 | s[i].reloff = ByteSwap(s[i].reloff); |
150 | s[i].nreloc = ByteSwap(s[i].nreloc); |
151 | s[i].flags = ByteSwap(s[i].flags); |
152 | s[i].reserved1 = ByteSwap(s[i].reserved1); |
153 | s[i].reserved2 = ByteSwap(s[i].reserved2); |
154 | } |
155 | } |
156 | |