dyld/unit-tests/test-cases/image-remove-notification/main.c

   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 <stdbool.h>
  26 #include <mach-o/dyld.h>
  27 #include <dlfcn.h>
  28
  29 #include "test.h" // PASS(), FAIL(), XPASS(), XFAIL()
  30
  31
  32 static void* sExpectedBundleBaseAddress = 0;
  33 static bool sNotified = false;
  34
  35 static void removeNotification(const struct mach_header *mh, intptr_t vmaddr_slide)
  36 {
  37         if ( mh == sExpectedBundleBaseAddress )
  38                 sNotified = true;
  39 }
  40
  41
  42
  43 int main(int argc, const char* argv[])
  44 {
  45         // tell dyld we want to know when images go away
  46         _dyld_register_func_for_remove_image(removeNotification);
  47
  48         void* handle = dlopen("foo.bundle", RTLD_LAZY);
  49         if ( handle == NULL ) {
  50                 FAIL("image-remove-notification: dlopen(foo.bundle) failed: %s", dlerror());
  51                 exit(0);
  52         }
  53
  54         void* sym = dlsym(handle, "foo");
  55         if ( sym == NULL ) {
  56                 FAIL("image-remove-notification: dlsym(handle, \"foo\") failed: %s", dlerror());
  57                 exit(0);
  58         }
  59
  60         Dl_info info;
  61         if ( dladdr(sym, &info) == 0 ) {
  62                 FAIL("image-remove-notification: dladdr() failed");
  63                 exit(0);
  64         }
  65
  66         // record the base address we expect to get notification about
  67         sExpectedBundleBaseAddress = info.dli_fbase;
  68
  69         int result = dlclose(handle);
  70         if ( result != 0 ) {
  71                 FAIL("image-remove-notification: dlclose(handle) returned %d, %s", result, dlerror());
  72                 exit(0);
  73         }
  74
  75         if ( sNotified )
  76                 PASS("image-remove-notification");
  77         else
  78                 FAIL("image-remove-notification");
  79
  80         return EXIT_SUCCESS;
  81 }