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e2ac49d3d7
Lite exit support.
* README: Add information about lite-exit.
* acconfig.h (_LITE_EXIT): New macro.
* configure.in (enable-lite-exit): New option.
(_LITE_EXIT): Define new macro.
* configure: Regenerated.
* newlib.hin (_LITE_EXIT): New macro.
* libc/stdlib/__atexit.c [_LITE_EXIT]: Add dummy explicit
reference to __call_exitprocs.
* libc/stdlib/cxa_atexit.c [_LITE_EXIT]: Make __register_exitproc a
weak reference.
* libc/stdlib/exit.c (exit)[_LITE_EXIT]: Remove TWS and weakly reference
__call_exitprocs.
33 lines
632 B
C
33 lines
632 B
C
/*
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* Implementation of __cxa_atexit.
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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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#include "atexit.h"
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/*
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* Register a function to be performed at exit or DSO unload.
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*/
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int
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_DEFUN (__cxa_atexit,
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(fn, arg, d),
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void (*fn) (void *) _AND
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void *arg _AND
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void *d)
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{
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#ifdef _LITE_EXIT
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/* Refer to comments in __atexit.c for more details of lite exit. */
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int __register_exitproc _PARAMS ((int, void (*fn) (void), _PTR, _PTR))
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__attribute__ ((weak));
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if (!__register_exitproc)
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return 0;
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else
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#endif
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return __register_exitproc (__et_cxa, (void (*)(void)) fn, arg, d);
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}
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