unit-tests/test-cases/dlopen-local-and-global/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 <dlfcn.h>
  26 #include <string.h>
  27
  28 #include "test.h" // PASS(), FAIL(), XPASS(), XFAIL()
  29
  30
  31
  32
  33 static void* openWithModeGetSymbol(const char* path, int mode, const char* symbol)
  34 {
  35         void* handle = dlopen(path, mode);
  36         if ( handle == NULL ) {
  37                 const char* msg = dlerror();
  38                 if ( ((mode & RTLD_LOCAL) != 0) && (strstr(msg, "RTLD_LOCAL") != NULL) )
  39                         XFAIL("dlopen(\"%s\") failed: %s", path, msg);
  40                 else
  41                         FAIL("dlopen(\"%s\") failed: %s", path, msg);
  42                 exit(0);
  43         }
  44
  45         void* sym = dlsym(handle, symbol);
  46         if ( sym == NULL ) {
  47                 FAIL("dlsym(handle, \"%s\") failed", symbol);
  48                 exit(0);
  49         }
  50         return sym;
  51 }
  52
  53 static void trySO(const char* path)
  54 {
  55 #if LOCAL_FIRST
  56         void* symLocal = openWithModeGetSymbol(path, RTLD_LOCAL, "foo");
  57         void* symGlobal = openWithModeGetSymbol(path, RTLD_GLOBAL, "foo");
  58 #else
  59         void* symGlobal = openWithModeGetSymbol(path, RTLD_GLOBAL, "foo");
  60         void* symLocal = openWithModeGetSymbol(path, RTLD_LOCAL, "foo");
  61 #endif
  62         if ( symLocal != symGlobal ) {
  63                 FAIL("global load after local load failed");
  64                 exit(0);
  65         }
  66 }
  67
  68
  69 int main(int argc, const char* argv[])
  70 {
  71         trySO("foo.bundle");
  72         trySO("foo.dylib");
  73
  74         PASS("dlopen-local-and-global");
  75         return EXIT_SUCCESS;
  76 }