C++程序  |  32行  |  834 B

/*
 * Copyright (C) 2019 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>

int ret42() {
  return 42;
}

extern "C" void* resolver() {
  return (void*)ret42;
}

int ifunc() __attribute__((ifunc("resolver")));

TEST(ifunc, function) {
  ASSERT_EQ(42, ifunc());
}