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121 lines
5.0 KiB
121 lines
5.0 KiB
/************************************************************************ |
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* libc/stdlib/lib_abort.c |
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* |
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* Copyright (C) 2007, 2009, 2011-2012 Gregory Nutt. All rights reserved. |
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* Author: Gregory Nutt <gnutt@nuttx.org> |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in |
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* the documentation and/or other materials provided with the |
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* distribution. |
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* 3. Neither the name NuttX nor the names of its contributors may be |
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* used to endorse or promote products derived from this software |
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* without specific prior written permission. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS |
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE |
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, |
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS |
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED |
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN |
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
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* POSSIBILITY OF SUCH DAMAGE. |
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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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* Pre-processor Definitions |
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************************************************************************/ |
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/************************************************************************ |
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* Private Type Declarations |
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************************************************************************/ |
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/************************************************************************ |
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* Global Variables |
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************************************************************************/ |
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/************************************************************************ |
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* Private Variables |
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************************************************************************/ |
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/************************************************************************ |
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* Private Function Prototypes |
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************************************************************************/ |
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/************************************************************************ |
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* Private Functions |
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************************************************************************/ |
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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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* Note that pthread_exit() is called instead of exit(). That is because |
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* we do no know if abort was called from a pthread or a normal thread |
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* (we could find out, of course). If abort() is called from a non-pthread, |
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* then pthread_exit() should fail and fall back to call exit() anyway. |
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* |
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* If exit() is called (either below or via pthread_exit()), then exit() |
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* will flush and close all open files and terminate the thread. If this |
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* function was called from a pthread, then pthread_exit() will complete |
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* any joins, but will not flush or close any streams. |
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*/ |
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#ifdef CONFIG_DISABLE_PTHREAD |
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exit(EXIT_FAILURE); |
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#else |
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pthread_exit(NULL); |
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#endif |
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}
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