56 lines
1.7 KiB
C++
56 lines
1.7 KiB
C++
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/*
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* Copyright (C) 2013 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 <sys/cdefs.h>
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#include <features.h>
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#include <gtest/gtest.h>
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// getauxval() was only added as of glibc version 2.16.
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// See: http://lwn.net/Articles/519085/
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// Don't try to compile this code on older glibc versions.
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#if defined(__BIONIC__)
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#define GETAUXVAL_CAN_COMPILE 1
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#elif defined(__GLIBC_PREREQ)
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#if __GLIBC_PREREQ(2, 16)
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#define GETAUXVAL_CAN_COMPILE 1
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#endif
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#endif
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#if defined(GETAUXVAL_CAN_COMPILE)
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#include <sys/auxv.h>
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TEST(getauxval, expected_values) {
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ASSERT_EQ((unsigned long int) 0, getauxval(AT_SECURE));
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ASSERT_EQ(getuid(), getauxval(AT_UID));
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ASSERT_EQ(geteuid(), getauxval(AT_EUID));
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ASSERT_EQ(getgid(), getauxval(AT_GID));
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ASSERT_EQ(getegid(), getauxval(AT_EGID));
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ASSERT_EQ((unsigned long int) getpagesize(), getauxval(AT_PAGESZ));
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ASSERT_NE((unsigned long int) 0, getauxval(AT_PHDR));
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ASSERT_NE((unsigned long int) 0, getauxval(AT_PHNUM));
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ASSERT_NE((unsigned long int) 0, getauxval(AT_ENTRY));
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ASSERT_NE((unsigned long int) 0, getauxval(AT_PAGESZ));
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}
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TEST(getauxval, unexpected_values) {
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ASSERT_EQ((unsigned long int) 0, getauxval(0xdeadbeef));
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}
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#endif /* GETAUXVAL_CAN_COMPILE */
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