gcore.tproj/corefile.h

   1 /*
   2  * Copyright (c) 2016 Apple Inc.  All rights reserved.
   3  */
   4
   5 #include "loader_additions.h"
   6 #include "dyld_shared_cache.h"
   7 #include "region.h"
   8
   9 #include <mach-o/loader.h>
  10 #include <mach/mach.h>
  11 #include <mach/mach_vm.h>
  12 #include <sys/types.h>
  13
  14 #ifndef _COREFILE_H
  15 #define _COREFILE_H
  16
  17 #if defined(__LP64__)
  18 typedef struct mach_header_64 native_mach_header_t;
  19 typedef struct segment_command_64 native_segment_command_t;
  20 #define NATIVE_MH_MAGIC         MH_MAGIC_64
  21 #define NATIVE_LC_SEGMENT       LC_SEGMENT_64
  22 #else
  23 typedef struct mach_header native_mach_header_t;
  24 typedef struct segment_command native_segment_command_t;
  25 #define NATIVE_MH_MAGIC         MH_MAGIC
  26 #define NATIVE_LC_SEGMENT       LC_SEGMENT
  27 #endif
  28
  29 static __inline const struct load_command *next_lc(const struct load_command *lc) {
  30         if (lc->cmdsize && (lc->cmdsize & 3) == 0)
  31                 return (const void *)((caddr_t)lc + lc->cmdsize);
  32         return NULL;
  33 }
  34
  35 extern native_segment_command_t *make_native_segment_command(void *, const struct vm_range *, const struct file_range *, vm_prot_t, vm_prot_t);
  36
  37 extern native_mach_header_t *make_corefile_mach_header(void *);
  38 extern struct proto_coreinfo_command *make_coreinfo_command(native_mach_header_t *, void *, const uuid_t, uint64_t, uint64_t);
  39
  40 static __inline void mach_header_inc_ncmds(native_mach_header_t *mh, uint32_t inc) {
  41     mh->ncmds += inc;
  42 }
  43
  44 static __inline void mach_header_inc_sizeofcmds(native_mach_header_t *mh, uint32_t inc) {
  45     mh->sizeofcmds += inc;
  46 }
  47
  48 struct size_core {
  49     unsigned long count; /* number-of-objects */
  50     size_t headersize;   /* size in mach header */
  51     mach_vm_offset_t memsize;     /* size in memory */
  52 };
  53
  54 struct size_segment_data {
  55     struct size_core ssd_vanilla;  /* full segments with data */
  56     struct size_core ssd_sparse;   /* sparse segments with data */
  57     struct size_core ssd_fileref;  /* full & sparse segments with uuid file references */
  58     struct size_core ssd_zfod;     /* full segments with zfod pages */
  59 };
  60
  61 struct write_segment_data {
  62     task_t wsd_task;
  63     native_mach_header_t *wsd_mh;
  64     void *wsd_lc;
  65     int wsd_fd;
  66         bool wsd_nocache;
  67     off_t wsd_foffset;
  68     off_t wsd_nwritten;
  69 };
  70
  71 #endif /* _COREFILE_H */