src/dyldLibSystemInterface.h

   1 /* -*- mode: C++; c-basic-offset: 4; tab-width: 4 -*-
   2  *
   3  * Copyright (c) 2004-2009 Apple Inc. All rights reserved.
   4  *
   5  * @APPLE_LICENSE_HEADER_START@
   6  *
   7  * This file contains Original Code and/or Modifications of Original Code
   8  * as defined in and that are subject to the Apple Public Source License
   9  * Version 2.0 (the 'License'). You may not use this file except in
  10  * compliance with the License. Please obtain a copy of the License at
  11  * http://www.opensource.apple.com/apsl/ and read it before using this
  12  * file.
  13  *
  14  * The Original Code and all software distributed under the License are
  15  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  16  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
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  19  * Please see the License for the specific language governing rights and
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  24
  25
  26 #ifndef __DYLDLIBSYSTEMHELPERS__
  27 #define __DYLDLIBSYSTEMHELPERS__
  28
  29 #include <stdint.h>
  30
  31 #if __cplusplus
  32 namespace dyld {
  33 #endif
  34         //
  35         // This file contains the synchronization utilities used by dyld to be thread safe.
  36         // This struct is implemented in in libSystem (where pthreads is available)
  37         // and passed to dyld to use.
  38         //
  39         struct LibSystemHelpers
  40         {
  41                 uintptr_t       version;
  42                 void            (*acquireGlobalDyldLock)();
  43                 void            (*releaseGlobalDyldLock)();
  44                 char*           (*getThreadBufferFor_dlerror)(uint32_t sizeRequired);
  45                 // addded in version 2
  46                 void*           (*malloc)(size_t);
  47                 void            (*free)(void*);
  48                 int                     (*cxa_atexit)(void (*)(void*), void*, void*);
  49                 // addded in version 3
  50                 void            (*dyld_shared_cache_missing)();
  51                 void            (*dyld_shared_cache_out_of_date)();
  52                 // addded in version 4
  53                 void            (*acquireDyldInitializerLock)();
  54                 void            (*releaseDyldInitializerLock)();
  55                 // added in version 5
  56                 int                     (*pthread_key_create)(pthread_key_t*, void (*destructor)(void*));
  57                 int                     (*pthread_setspecific)(pthread_key_t, const void*);
  58                 // added in version 6
  59                 size_t          (*malloc_size)(const void *ptr);
  60                 // added in version 7
  61                 void*           (*pthread_getspecific)(pthread_key_t);
  62                 // added in version 8
  63                 void            (*cxa_finalize)(const void*);
  64                 // added in version 9
  65                 void*           startGlueToCallExit;
  66         };
  67 #if __cplusplus
  68 };
  69 #endif
  70
  71
  72
  73
  74 #endif // __DYLDLIBSYSTEMHELPERS__
  75