/* * Copyright (c) 2005 Apple Computer, Inc. All rights reserved. * * @APPLE_LICENSE_HEADER_START@ * * This file contains Original Code and/or Modifications of Original Code * as defined in and that are subject to the Apple Public Source License * Version 2.0 (the 'License'). You may not use this file except in * compliance with the License. Please obtain a copy of the License at * http://www.opensource.apple.com/apsl/ and read it before using this * file. * * The Original Code and all software distributed under the License are * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. * Please see the License for the specific language governing rights and * limitations under the License. * * @APPLE_LICENSE_HEADER_END@ */ #include <stdio.h> // fprintf(), NULL #include <stdlib.h> // exit(), EXIT_SUCCESS #include <dlfcn.h> #include "test.h" // PASS(), FAIL(), XPASS(), XFAIL() /// /// This process has five foo functions. They are in: /// main, test.bundle, test.dylib, foo1.dylib, foo2.dylib /// /// Both test.bundle and test.dylib call dlsym(RTLD_NEXT, "foo"); /// They should find the ones in foo1.dylib and foo2.dylib respectively. /// We test this be looking up those symbols explictly. /// int foo() { return 0; } typedef void* (*TestProc)(void); static void trySO(const char* pathToLoad, const char* indirectLibrary) { void* indirectHandle = dlopen(indirectLibrary, RTLD_LAZY); if ( indirectHandle == NULL ) { FAIL("dlopen(\"%s\") failed", indirectLibrary); exit(0); } void* indirectFoo = (TestProc)dlsym(indirectHandle, "foo"); if ( indirectFoo == NULL ) { FAIL("dlsym(handle, \"test\") failed"); exit(0); } void* handle = dlopen(pathToLoad, RTLD_LAZY); if ( handle == NULL ) { FAIL("dlopen(\"%s\") failed", pathToLoad); exit(0); } TestProc sym = (TestProc)dlsym(handle, "test"); if ( sym == NULL ) { FAIL("dlsym(handle, \"test\") failed"); exit(0); } void* targetFoo = (*sym)(); //printf("targetFoo = %p, indirectFoo = %p\n", targetFoo, indirectFoo); if ( targetFoo != indirectFoo ) { FAIL("dlsym-RTLD_NEXT wrong foo found"); exit(0); } } int main() { trySO("test.bundle", "foo1.dylib"); trySO("test.dylib", "foo2.dylib"); PASS("dlsym-RTLD_NEXT bundle and dylib"); return EXIT_SUCCESS; }