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,
  17  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  19  * Please see the License for the specific language governing rights and
  20  * limitations under the License.
  21  *
  22  * @APPLE_LICENSE_HEADER_END@
  23  */
  24
  25
  26 #ifndef __DYLDLIBSYSTEMHELPERS__
  27 #define __DYLDLIBSYSTEMHELPERS__
  28
  29 #include <stdint.h>
  30 #include <mach/mach.h>
  31
  32 struct __cxa_range_t { const void* addr; size_t length; };
  33
  34 #if __cplusplus
  35 namespace dyld {
  36 #endif
  37         //
  38         // This file contains the synchronization utilities used by dyld to be thread safe.
  39         // This struct is implemented in in libSystem (where pthreads is available)
  40         // and passed to dyld to use.
  41         //
  42         struct LibSystemHelpers
  43         {
  44                 uintptr_t       version;
  45                 void            (*acquireGlobalDyldLock)(void);
  46                 void            (*releaseGlobalDyldLock)(void);
  47                 char*           (*getThreadBufferFor_dlerror)(size_t sizeRequired);
  48                 // addded in version 2
  49                 void*           (*malloc)(size_t);
  50                 void            (*free)(void*);
  51                 int                     (*cxa_atexit)(void (*)(void*), void*, void*);
  52                 // addded in version 3
  53                 void            (*dyld_shared_cache_missing)(void);
  54                 void            (*dyld_shared_cache_out_of_date)(void);
  55                 // addded in version 4
  56                 void            (*acquireDyldInitializerLock)(void);
  57                 void            (*releaseDyldInitializerLock)(void);
  58                 // added in version 5
  59                 int                     (*pthread_key_create)(pthread_key_t*, void (*destructor)(void*));
  60                 int                     (*pthread_setspecific)(pthread_key_t, const void*);
  61                 // added in version 6
  62                 size_t          (*malloc_size)(const void *ptr);
  63                 // added in version 7
  64                 void*           (*pthread_getspecific)(pthread_key_t);
  65                 // added in version 8
  66                 void            (*cxa_finalize)(const void*);
  67                 // added in version 9
  68                 void*           startGlueToCallExit;
  69                 // added in version 10
  70                 bool            (*hasPerThreadBufferFor_dlerror)(void);
  71                 // added in version 11
  72                 bool            (*isLaunchdOwned)(void);
  73                 // added in version 12
  74                 kern_return_t (*vm_alloc)(vm_map_t task, vm_address_t* addr, vm_size_t size, int flags);
  75                 void*           (*mmap)(void* addr, size_t len, int prot, int flags, int fd, off_t offset);
  76                 // added in version 13
  77                 void            (*cxa_finalize_ranges)(const struct __cxa_range_t ranges[], int count);
  78         };
  79 #if __cplusplus
  80 }
  81 #endif
  82
  83
  84
  85
  86 #endif // __DYLDLIBSYSTEMHELPERS__
  87