projects / apple / dyld.git / blame
| Commit | Line | Data |
|---|---|---|
| 0959b6d4 | 1 | /* |
| 412ebb8e | 2 | * Copyright (c) 2005-2009 Apple Inc. All rights reserved. |
| 0959b6d4 A |
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 | */ | |
| 0959b6d4 | 23 | |
| bac542e6 | 24 | #include <stdbool.h> |
| 412ebb8e A |
25 | #include <Availability.h> |
| 26 | ||
| 27 | ||
| 28 | // _dyld_func_lookup is only available in 10.5 and earlier | |
| 29 | #if defined(__MAC_OS_X_VERSION_MIN_REQUIRED) && (__MAC_OS_X_VERSION_MIN_REQUIRED <= __MAC_10_5) | |
| 0959b6d4 | 30 | |
| bac542e6 A |
31 | extern bool _dyld_func_lookup(const char* dyld_func_name, void** address); |
| 32 | ||
| 33 | ||
| 34 | ||
| 35 | bool check_dyld_func_lookup() | |
| 0959b6d4 | 36 | { |
| bac542e6 A |
37 | void* address; |
| 38 | ||
| 39 | // dlopen does not exist, something is wrong | |
| 40 | if ( ! _dyld_func_lookup("__dyld_dlopen", &address) ) | |
| 41 | return false; | |
| 42 | ||
| 43 | // if a garbage string returns true, something is wrong | |
| 44 | if ( _dyld_func_lookup("blablah", &address) ) | |
| 45 | return false; | |
| 46 | ||
| 47 | // looks good | |
| 48 | return true; | |
| 0959b6d4 | 49 | } |
| 412ebb8e A |
50 | |
| 51 | #endif |