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