41 lines
1.1 KiB
C++
41 lines
1.1 KiB
C++
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/*
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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 "libs_utils.h"
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static ssize_t g_result;
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static int g_errno;
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static void preinit_ctor() {
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// Can we make a system call?
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g_result = write(-1, "", 1);
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g_errno = errno;
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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 we get the expected failure?
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CHECK(g_result == -1);
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CHECK(g_errno == EBADF);
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return 0;
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}
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