gcore.tproj/loader_additions.h

   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
  19 struct 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
  52 struct 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 */