07039b8a36
The POSIX standard dictates that during abnormal termination the functions registered by atexit() are _not_ called, also flushing the streams is optional. So in this case, it is perfectly legal / better to call the kernel system call _exit() instead. This fixes regression issues caused by removal exit() from the kernel.
71 lines
2.6 KiB
C
71 lines
2.6 KiB
C
/****************************************************************************
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* libs/libc/stdlib/lib_abort.c
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. 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, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <stdlib.h>
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#include <pthread.h>
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: Abort
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*
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* Description:
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* The abort() first unblocks the SIGABRT signal, and then raises that
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* signal for the calling process. This results in the abnormal
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* termination of the process unless the SIGABRT signal is caught and
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* the signal handler does not return.
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*
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* If the abort() function causes process termination, all open
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* streams are closed and flushed.
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*
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* If the SIGABRT signal is ignored, or caught by a handler that
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* returns, the abort() function will still terminate the process.
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* It does this by restoring the default disposition for SIGABRT and
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* then raising the signal for a second time.
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*
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* Input Parameters:
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* None
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*
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* Returned Value:
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* This function does not return,
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*
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****************************************************************************/
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void abort(void)
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{
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/* NuttX does not support standard signal functionality (like the
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* behavior of the SIGABRT signal). So no attempt is made to provide
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* a conformant version of abort() at this time. This version does not
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* signal the calling thread all.
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*
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* _exit() will close all open files and terminate the thread.
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*/
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_exit(EXIT_FAILURE);
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}
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