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Diffstat (limited to 'nuttx/lib/stdlib/lib_abort.c')
-rw-r--r-- | nuttx/lib/stdlib/lib_abort.c | 121 |
1 files changed, 121 insertions, 0 deletions
diff --git a/nuttx/lib/stdlib/lib_abort.c b/nuttx/lib/stdlib/lib_abort.c new file mode 100644 index 000000000..84b600950 --- /dev/null +++ b/nuttx/lib/stdlib/lib_abort.c @@ -0,0 +1,121 @@ +/************************************************************************ + * lib/stdlib/lib_abort.c + * + * Copyright (C) 2007, 2009, 2011-2012 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt <gnutt@nuttx.org> + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ************************************************************************/ + +/************************************************************************ + * Included Files + ************************************************************************/ + +#include <nuttx/config.h> + +#include <stdlib.h> +#include <pthread.h> + +/************************************************************************ + * Pre-processor Definitions + ************************************************************************/ + +/************************************************************************ + * Private Type Declarations + ************************************************************************/ + +/************************************************************************ + * Global Variables + ************************************************************************/ + +/************************************************************************ + * Private Variables + ************************************************************************/ + +/************************************************************************ + * Private Function Prototypes + ************************************************************************/ + +/************************************************************************ + * Private Functions + ************************************************************************/ + +/************************************************************************ + * Public Functions + ************************************************************************/ + +/************************************************************************ + * Name: Abort + * + * Description: + * The abort() first unblocks the SIGABRT signal, and then raises that + * signal for the calling process. This results in the abnormal + * termination of the process unless the SIGABRT signal is caught and + * the signal handler does not return. + * + * If the abort() function causes process termination, all open + * streams are closed and flushed. + * + * If the SIGABRT signal is ignored, or caught by a handler that + * returns, the abort() function will still terminate the process. + * It does this by restoring the default disposition for SIGABRT and + * then raising the signal for a second time. + * + * Input parameters: + * None + * + * Returned Value: + * This function does not return, + * + ************************************************************************/ + +void abort(void) +{ + /* NuttX does not support standard signal functionality (like the + * behavior of the SIGABRT signal). So no attempt is made to provide + * a conformant version of abort() at this time. This version does not + * signal the calling thread all. + * + * Note that pthread_exit() is called instead of exit(). That is because + * we do no know if abort was called from a pthread or a normal thread + * (we could find out, of course). If abort() is called from a non-pthread, + * then pthread_exit() should fail and fall back to call exit() anyway. + * + * If exit() is called (either below or via pthread_exit()), then exit() + * will flush and close all open files and terminate the thread. If this + * function was called from a pthread, then pthread_exit() will complete + * any joins, but will not flush or close any streams. + */ + +#ifdef CONFIG_DISABLE_PTHREAD + exit(EXIT_FAILURE); +#else + pthread_exit(NULL); +#endif +} |