include/dlfcn_private.h

   1 /*
   2  * Copyright (c) 2019 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 #ifndef _DLFCN_PRIVATE_H_
  25 #define _DLFCN_PRIVATE_H_
  26
  27 #include <dlfcn.h>
  28
  29 #ifdef __cplusplus
  30 extern "C" {
  31 #endif
  32
  33 /*
  34  * Internal interface for dlopen; intended to help audit internal use of
  35  * dlopen.
  36  */
  37 #if __i386__
  38 /*
  39  * i386 makes tail calls difficult, and RTLD_NEXT requires that dlopen_audited
  40  * tail call dlopen.  Just directly call dlopen on i386.
  41  */
  42 #define dlopen_audited(__path, __mode) dlopen(__path, __mode)
  43 #else
  44 extern void * dlopen_audited(const char * __path, int __mode) __DYLDDL_DRIVERKIT_UNAVAILABLE;
  45 #endif
  46
  47
  48 /*
  49  * Sometimes dlopen() looks at who called it (such as for @rpath and @loader_path).
  50  * This SPI allows you to simulate dlopen() being called by other code.
  51  * Available in macOS 11.0 and iOS 14.0 and later.
  52  */
  53 extern void* dlopen_from(const char* __path, int __mode, void* __addressInCaller) __DYLDDL_DRIVERKIT_UNAVAILABLE;
  54
  55
  56 #ifdef __cplusplus
  57 }
  58 #endif
  59
  60 #endif /* _DLFCN_PRIVATE_H_ */