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Keep track of atexit functions that are added while processing

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atexit functions, to ensure that the new functions will be called.
This commit is contained in:
kristerw 2007-08-08 01:05:34 +00:00
parent af220472c9
commit 3a6ef3e3c1
1 changed files with 7 additions and 2 deletions
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9
lib/libc/stdlib/atexit.c
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@ -1,4 +1,4 @@
/* $NetBSD: atexit.c,v 1.18 2007/08/08 00:51:18 kristerw Exp $ */
/* $NetBSD: atexit.c,v 1.19 2007/08/08 01:05:34 kristerw Exp $ */
/*-
* Copyright (c) 2003 The NetBSD Foundation, Inc.
@ -38,7 +38,7 @@
#include <sys/cdefs.h>
#if defined(LIBC_SCCS) && !defined(lint)
__RCSID("$NetBSD: atexit.c,v 1.18 2007/08/08 00:51:18 kristerw Exp $");
__RCSID("$NetBSD: atexit.c,v 1.19 2007/08/08 01:05:34 kristerw Exp $");
#endif /* LIBC_SCCS and not lint */
#include "reentrant.h"
@ -191,9 +191,11 @@ __cxa_finalize(void *dso)
* When the depth 1 caller sees those, it will simply unlink them
* for us.
*/
again:
for (prevp = &atexit_handler_stack; (ah = (*prevp)) != NULL;) {
if (dso == NULL || dso == ah->ah_dso || ah->ah_atexit == NULL) {
if (ah->ah_atexit != NULL) {
void *p = atexit_handler_stack;
if (ah->ah_dso != NULL) {
cxa_func = ah->ah_cxa_atexit;
ah->ah_cxa_atexit = NULL;
@ -203,6 +205,9 @@ __cxa_finalize(void *dso)
ah->ah_atexit = NULL;
(*atexit_func)();
}
/* Restart if new atexit handler was added. */
if (p != atexit_handler_stack)
goto again;
}
if (call_depth == 1) {