dyld3/Loading.h

   1 /*
   2  * Copyright (c) 2017 Apple Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License. Please obtain a copy of the License at
  10  * http://www.opensource.apple.com/apsl/ and read it before using this
  11  * file.
  12  *
  13  * The Original Code and all software distributed under the License are
  14  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  15  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  16  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  18  * Please see the License for the specific language governing rights and
  19  * limitations under the License.
  20  *
  21  * @APPLE_LICENSE_HEADER_END@
  22  */
  23
  24
  25
  26 #ifndef __DYLD_LOADING_H__
  27 #define __DYLD_LOADING_H__
  28
  29 #include <string.h>
  30 #include <stdint.h>
  31 #include <mach/mach.h>
  32 #include <_simple.h>
  33 #include "LaunchCache.h"
  34 #include "LaunchCacheFormat.h"
  35 #include "MachOParser.h"
  36 #include "ClosureBuffer.h"
  37
  38
  39
  40 namespace dyld3 {
  41
  42 ClosureBuffer closured_CreateImageGroup(const ClosureBuffer& input);
  43
  44 namespace loader {
  45
  46 struct ImageInfo
  47 {
  48     const launch_cache::binary_format::Image*   imageData;
  49     const mach_header*                          loadAddress;
  50     uint32_t                                    groupNum;
  51     uint32_t                                    indexInGroup;
  52     bool                                        previouslyFixedUp;
  53     bool                                        justMapped;
  54     bool                                        justUsedFromDyldCache;
  55     bool                                        neverUnload;
  56 };
  57
  58
  59 #if DYLD_IN_PROCESS
  60
  61 typedef bool (*LogFunc)(const char*, ...) __attribute__((format(printf, 1, 2)));
  62
  63 void mapAndFixupImages(Diagnostics& diag, launch_cache::DynArray<ImageInfo>& images, const uint8_t* cacheLoadAddress,
  64                        LogFunc log_loads, LogFunc log_segments, LogFunc log_fixups, LogFunc log_dofs) VIS_HIDDEN;
  65
  66
  67 void unmapImage(const launch_cache::binary_format::Image* image, const mach_header* loadAddress) VIS_HIDDEN;
  68
  69 #if BUILDING_DYLD
  70 bool bootArgsContains(const char* arg) VIS_HIDDEN;
  71 bool internalInstall();
  72 void forEachLineInFile(const char* path, void (^lineHandler)(const char* line, bool& stop));
  73 #endif
  74 #endif
  75
  76 } // namespace loader
  77 } // namespace dyld3
  78
  79
  80 #endif // __DYLD_LOADING_H__
  81
  82