51 lines
1.5 KiB
C
51 lines
1.5 KiB
C
/*
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* Copyright (c) 2011 Aeroflex Gaisler
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*
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* BSD license:
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include <stddef.h>
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#include <stdlib.h>
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#include <reent.h>
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#include <sys/lock.h>
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/*
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* Register a function to be performed at exit or on shared library unload.
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*/
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int
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atexit (void (*fn) (void))
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{
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register struct _atexit *p;
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p = _GLOBAL_REENT->_atexit;
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if (p == NULL)
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_GLOBAL_REENT->_atexit = p = &_GLOBAL_REENT->_atexit0;
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if (p->_ind >= _ATEXIT_SIZE)
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{
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return -1;
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}
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p->_fns[p->_ind++] = fn;
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return 0;
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}
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