1/*
2 * Copyright (C) 2017 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#include <errno.h>
18#include <stdio.h>
19#include <unistd.h>
20#include <sys/auxv.h>
21
22#include "libs_utils.h"
23
24static ssize_t g_result;
25static int g_errno;
26
27static void preinit_ctor() {
28  // Can we make a system call?
29  g_result = write(-1, "", 1);
30  g_errno = errno;
31}
32
33__attribute__((section(".preinit_array"), used)) void (*preinit_ctor_p)(void) = preinit_ctor;
34
35int main() {
36  // Did we get the expected failure?
37  CHECK(g_result == -1);
38  CHECK(g_errno == EBADF);
39  return 0;
40}
41