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1/*
2 * Copyright (c) 2015 Apple Inc. All rights reserved.
3 */
4
5#include <mach-o/loader.h>
6
7#ifndef _LOADER_ADDITIONS_H
8#define _LOADER_ADDITIONS_H
9
10/*
11 * Something like this should end up in <mach-o/loader.h>
12 */
13#define proto_LC_COREINFO 0x40 /* unofficial value!! */
14
15#define proto_CORETYPE_KERNEL 1
16#define proto_CORETYPE_USER 2
17#define proto_CORETYPE_IBOOT 3
18
19struct proto_coreinfo_command {
20 uint32_t cmd; /* LC_COREINFO */
21 uint32_t cmdsize; /* total size of this command */
22 uint32_t version; /* currently 1 */
23 /*
24 * 'type' determines the content of the corefile; interpretation
25 * of the address and uuid fields are specific to the type.
26 */
27 uint32_t type; /* CORETYPE_KERNEL, CORETYPE_USER etc. */
28 uint64_t address; /* load address of "main binary" */
29 uint8_t uuid[16]; /* uuid of "main binary" */
30 uint64_t dyninfo; /* dynamic modules info */
31};
32
33/*
34 * These are flag bits for the segment_command 'flags' field.
35 */
36
37#define proto_SG_COMP_ALG_MASK 0x7
38/* carve out 3 bits for an enum i.e. allow for 7 flavors */
39#define proto_SG_COMP_ALG_SHIFT 4 /* (bottom 4 bits taken) */
40
41/* zero -> no compression */
42#define proto_SG_COMP_LZ4 1 /* 0x100 */
43#define proto_SG_COMP_ZLIB 2 /* 0x205 */
44#define proto_SG_COMP_LZMA 3 /* 0x306 */
45#define proto_SG_COMP_LZFSE 4 /* 0x801 */
46
47#define proto_SG_COMP_ALG_TYPE(flags) (((flags) >> proto_SG_COMP_ALG_SHIFT) & proto_SG_COMP_ALG_MASK)
48#define proto_SG_COMP_MAKE_FLAGS(type) (((type) & proto_SG_COMP_ALG_MASK) << proto_SG_COMP_ALG_SHIFT)
49
50#define proto_LC_FILEREF 0x41 /* unofficial value! */
51
52struct proto_fileref_command {
53 uint32_t cmd; /* LC_FILEREF */
54 uint32_t cmdsize;
55 union lc_str filename; /* filename these bits come from */
56 uint8_t uuid[16]; /* uuid if known */
57 uint64_t vmaddr; /* memory address of this segment */
58 uint64_t vmsize; /* memory size of this segment */
59 uint64_t fileoff; /* file offset of this segment */
60 uint64_t filesize; /* amount to map from the file */
61 vm_prot_t maxprot; /* maximum VM protection */
62 vm_prot_t initprot; /* initial VM protection */
63};
64
65#endif /* _LOADER_ADDITIONS_H */