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a334319f | 1 | /* Copyright (C) 1999, 2001, 2002, 2003 Free Software Foundation, Inc. |
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2 | This file is part of the GNU C Library. |
3 | ||
4 | The GNU C Library is free software; you can redistribute it and/or | |
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5 | modify it under the terms of the GNU Lesser General Public |
6 | License as published by the Free Software Foundation; either | |
7 | version 2.1 of the License, or (at your option) any later version. | |
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8 | |
9 | The GNU C Library is distributed in the hope that it will be useful, | |
10 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
41bdb6e2 | 12 | Lesser General Public License for more details. |
c41041bc | 13 | |
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14 | You should have received a copy of the GNU Lesser General Public |
15 | License along with the GNU C Library; if not, write to the Free | |
16 | Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA | |
17 | 02111-1307 USA. */ | |
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18 | |
19 | #include <assert.h> | |
20 | #include <stdlib.h> | |
4009bf40 | 21 | #include <atomic.h> |
c41041bc | 22 | #include "exit.h" |
d1f69fed | 23 | #include <fork.h> |
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24 | |
25 | /* If D is non-NULL, call all functions registered with `__cxa_atexit' | |
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26 | with the same dso handle. Otherwise, if D is NULL, call all of the |
27 | registered handlers. */ | |
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28 | void |
29 | __cxa_finalize (void *d) | |
30 | { | |
31 | struct exit_function_list *funcs; | |
32 | ||
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33 | for (funcs = __exit_funcs; funcs; funcs = funcs->next) |
34 | { | |
35 | struct exit_function *f; | |
36 | ||
37 | for (f = &funcs->fns[funcs->idx - 1]; f >= &funcs->fns[0]; --f) | |
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38 | if ((d == NULL || d == f->func.cxa.dso_handle) |
39 | /* We don't want to run this cleanup more than once. */ | |
40 | && ! atomic_compare_and_exchange_bool_acq (&f->flavor, ef_free, | |
41 | ef_cxa)) | |
42 | (*f->func.cxa.fn) (f->func.cxa.arg, 0); | |
c41041bc | 43 | } |
d1f69fed | 44 | |
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45 | /* Remove the registered fork handlers. We do not have to |
46 | unregister anything if the program is going to terminate anyway. */ | |
d1f69fed | 47 | #ifdef UNREGISTER_ATFORK |
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48 | if (d != NULL) |
49 | UNREGISTER_ATFORK (d); | |
d1f69fed | 50 | #endif |
c41041bc | 51 | } |