platform_bionic/linker/linker_gnu_hash_test.cpp

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/*
* Copyright (C) 2019 The Android Open Source Project
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <gtest/gtest.h>
#include "linker_gnu_hash.h"
TEST(linker_gnu_hash, compare_neon_to_simple) {
#if USE_GNU_HASH_NEON
auto check_input = [&](const char* name) {
auto expected = calculate_gnu_hash_simple(name);
auto actual = calculate_gnu_hash_neon(name);
EXPECT_EQ(expected.first, actual.first) << name;
EXPECT_EQ(expected.second, actual.second) << name;
};
__attribute__((aligned(8))) const char test1[] = "abcdefghijklmnop\0qrstuvwxyz";
for (size_t i = 0; i < sizeof(test1) - 1; ++i) {
check_input(&test1[i]);
}
__attribute__((aligned(8))) const char test2[] = "abcdefghijklmnopqrs\0tuvwxyz";
for (size_t i = 0; i < sizeof(test2) - 1; ++i) {
check_input(&test2[i]);
}
__attribute__((aligned(8))) const char test3[] = "abcdefghijklmnopqrstuv\0wxyz";
for (size_t i = 0; i < sizeof(test3) - 1; ++i) {
check_input(&test3[i]);
}
#else
GTEST_SKIP() << "This test is only implemented on arm/arm64";
#endif
}