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/*
* 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>
#include <libgen.h>
#include <limits.h>
#include <stdio.h>
#include <stdint.h>
#include <string>
extern "C" int main_global_default_serial() {
return 3370318;
}
extern "C" int main_global_protected_serial() {
return 2716057;
}
// The following functions are defined in DT_NEEDED
// libdl_preempt_test.so library.
// This one calls main_global_default_serial
extern "C" int main_global_default_get_serial();
// This one calls main_global_protected_serial
extern "C" int main_global_protected_get_serial();
// This one calls lib_global_default_serial
extern "C" int lib_global_default_get_serial();
// This one calls lib_global_protected_serial
extern "C" int lib_global_protected_get_serial();
// This test verifies that the global default function
// main_global_default_serial() is preempted by
// the function defined above.
TEST(dl, main_preempts_global_default) {
ASSERT_EQ(3370318, main_global_default_get_serial());
}
// This one makes sure that the global protected
// symbols do not get preempted
TEST(dl, main_does_not_preempt_global_protected) {
ASSERT_EQ(3370318, main_global_protected_get_serial());
}
// check same things for lib
TEST(dl, lib_preempts_global_default) {
ASSERT_EQ(3370318, lib_global_default_get_serial());
}
TEST(dl, lib_does_not_preempt_global_protected) {
ASSERT_EQ(3370318, lib_global_protected_get_serial());
}
// TODO: Add tests for LD_PRELOADs
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