tests/dlopen_test.cpp

/*
 * Copyright (C) 2012 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#include <gtest/gtest.h>

#include <dlfcn.h>

static bool gCalled = false;
extern "C" void DlSymTestFunction() {
  gCalled = true;
}

TEST(dlopen, dlsym_in_self) {
  void* self = dlopen(NULL, RTLD_NOW);
  ASSERT_TRUE(self != NULL);

  void* sym = dlsym(self, "DlSymTestFunction");
  ASSERT_TRUE(sym != NULL);

  void (*function)() = reinterpret_cast<void(*)()>(sym);

  gCalled = false;
  function();
  ASSERT_TRUE(gCalled);
}