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
35static 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
67int main()
68{
69	trySO("test.bundle");
70	trySO("test.dylib");
71
72	PASS("dlopen-RTLD_NODELETE");
73	return 0;
74}
75