unit-tests/test-cases/dlopen-init-dlopen-notify/main.cxx

   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 <dlfcn.h>
  26 #include <mach-o/dyld.h>
  27 #include <set>
  28
  29 #include "test.h" // PASS(), FAIL(), XPASS(), XFAIL()
  30
  31
  32 static void trySO(const char* path)
  33 {
  34         void* handle = dlopen(path, RTLD_LAZY);
  35         if ( handle == NULL ) {
  36                 FAIL("dlopen(\"%s\") failed with: %s", path, dlerror());
  37                 exit(0);
  38         }
  39
  40         void* sym = dlsym(handle, "foo");
  41         if ( sym == NULL ) {
  42                 FAIL("dlsym(handle, \"foo\") failed");
  43                 exit(0);
  44         }
  45
  46         int result = dlclose(handle);
  47         if ( result != 0 ) {
  48                 if ( result == 1 ) {
  49                         // panther dyld returns 1 if you try to dlclose() a dylib
  50                         XFAIL("dlclose(handle) returned %d", result);
  51                 }
  52                 else {
  53                         FAIL("dlclose(handle) returned %d", result);
  54                         exit(0);
  55                 }
  56         }
  57
  58 }
  59
  60 static std::set<const struct mach_header*> sCurrentImages;
  61
  62 static void notify(const struct mach_header *mh, intptr_t vmaddr_slide)
  63 {
  64   //fprintf(stderr, "mh=%p\n", mh);
  65   if ( sCurrentImages.count(mh) != 0 ) {
  66     FAIL("notified twice about %p", mh);
  67     exit(0);
  68   }
  69   sCurrentImages.insert(mh);
  70 }
  71
  72
  73
  74 int main()
  75 {
  76   _dyld_register_func_for_add_image(&notify);
  77
  78         trySO("libfoo.dylib");
  79
  80         PASS("dlopen-init-dlopen-notify");
  81         return EXIT_SUCCESS;
  82 }