/* * Copyright (C) 2017 The Android Open Source Project * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #include <errno.h> #include <stdio.h> #include <unistd.h> #include <sys/auxv.h> #include "libs_utils.h" static ssize_t g_result; static int g_errno; static void preinit_ctor() { // Can we make a system call? g_result = write(-1, "", 1); g_errno = errno; } __attribute__((section(".preinit_array"), used)) void (*preinit_ctor_p)(void) = preinit_ctor; int main() { // Did we get the expected failure? CHECK(g_result == -1); CHECK(g_errno == EBADF); return 0; }