39 lines
1.2 KiB
C++
39 lines
1.2 KiB
C++
/*
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* Copyright (C) 2017 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <errno.h>
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#include <stdio.h>
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#include <unistd.h>
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#include <sys/auxv.h>
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#include "CHECK.h"
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static unsigned long g_AT_RANDOM;
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static unsigned long g_AT_PAGESZ;
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static void preinit_ctor() {
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g_AT_RANDOM = getauxval(AT_RANDOM);
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g_AT_PAGESZ = getauxval(AT_PAGESZ);
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}
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__attribute__((section(".preinit_array"), used)) void (*preinit_ctor_p)(void) = preinit_ctor;
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int main() {
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// Did getauxval during preinit get the same results as getauxval now?
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CHECK(getauxval(AT_RANDOM) == g_AT_RANDOM);
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CHECK(getauxval(AT_PAGESZ) == g_AT_PAGESZ);
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return 0;
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}
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