1/*
2 * Copyright (c) 2008 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 <stdlib.h> // EXIT_SUCCESS
24#include <mach-o/dyld.h>
25#include <mach-o/dyld_priv.h>
26#include <dlfcn.h>
27
28#include "test.h"
29
30extern void foo();
31
32intptr_t findSlide(const struct mach_header* mh)
33{
34	int count = _dyld_image_count();
35	for(int i=0; i < count; ++i) {
36		if ( mh == _dyld_get_image_header(i) ) {
37			return _dyld_get_image_vmaddr_slide(i);
38		}
39	}
40	return -1;
41}
42
43
44int
45main()
46{
47	// find mach_header for libfoo.dylib
48	const struct mach_header* mh;
49	Dl_info info;
50	if ( dladdr(&foo, &info) ) {
51		mh = info.dli_fbase;
52	}
53	else {
54		FAIL("dladdr() could not find foo()");
55		exit(0);
56	}
57
58
59	intptr_t slide1 = _dyld_get_image_slide(mh);
60	intptr_t slide2 = findSlide(mh);
61	if ( slide1 == slide2 )
62		PASS("image-slide");
63	else
64		FAIL("image-slide: 0x%lX != 0x%lX", slide1, slide2);
65
66	return EXIT_SUCCESS;
67}
68
69
70