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1 /*
2 * Copyright (c) 2007 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 #include <stddef.h>
24 #include <dlfcn.h>
25
26
27 // <rdar://problem/5366233> Leopard (9a499): dyld crash with recursive calls to dlclose()
28
29 static void* handle = NULL;
30
31 static void __attribute__((constructor)) myinit()
32 {
33 handle = dlopen("libbar.dylib", RTLD_LAZY);
34 }
35
36 static void __attribute__((destructor)) myterm()
37 {
38 // myterm() is called within dlclose.
39 // now call dlclose() on another (chainded dylib) to test dlclose is re-entrant
40 if ( handle != NULL )
41 dlclose(handle);
42 }
43
44
45 int foo()
46 {
47 return 10;
48 }