dyld-43.tar.gz
[apple/dyld.git] / unit-tests / test-cases / dlopen-RTLD_NODELETE / main.c
1 /*
2 * Copyright (c) 2005 Apple Computer, 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 <stdio.h> // fprintf(), NULL
24 #include <stdlib.h> // exit(), EXIT_SUCCESS
25 #include <string.h>
26 #include <dlfcn.h>
27
28 #include "test.h" // PASS(), FAIL(), XPASS(), XFAIL()
29
30
31 ///
32 /// This tests that RTLD_NODELETE prevents an image from being unloaded
33 ///
34
35 static int trySO(const char* path)
36 { // main links against libfoo.dylib so it should already be loaded
37 void* handle = dlopen(path, RTLD_NODELETE);
38 if ( handle == NULL ) {
39 const char* msg = dlerror();
40 FAIL("dlopen(\"%s\" RTLD_NODELETE) failed but it should have worked: %s", path, msg);
41 exit(0);
42 }
43 void* sym = dlsym(handle, "foo");
44 if ( sym == NULL ) {
45 const char* msg = dlerror();
46 FAIL("dlsym(handle, \"foo\") failed but it should have worked: %s", msg);
47 exit(0);
48 }
49
50 int result = dlclose(handle);
51 if ( result != 0 ) {
52 if ( result == 1 ) {
53 // panther dyld returns 1 if you try to dlclose() a dylib
54 XFAIL("dlclose(handle[%s]) returned %d", path, result);
55 }
56 else {
57 FAIL("dlclose(handle) returned %d", result);
58 exit(0);
59 }
60 }
61
62 // now try to access foo. If .so was unmapped, this will bus error
63 return *((int*)sym);
64 }
65
66
67 int main()
68 {
69 trySO("test.bundle");
70 trySO("test.dylib");
71
72 PASS("dlopen-RTLD_NODELETE");
73 return 0;
74 }