]>
Commit | Line | Data |
---|---|---|
2b778ceb | 1 | /* Copyright (C) 1997-2021 Free Software Foundation, Inc. |
a5a0310d UD |
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 | |
41bdb6e2 AJ |
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. | |
a5a0310d UD |
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. |
a5a0310d | 13 | |
41bdb6e2 | 14 | You should have received a copy of the GNU Lesser General Public |
59ba27a6 | 15 | License along with the GNU C Library; if not, see |
5a82c748 | 16 | <https://www.gnu.org/licenses/>. */ |
a5a0310d | 17 | |
4009bf40 | 18 | #include <atomic.h> |
a5a0310d UD |
19 | #include <stdlib.h> |
20 | #include <set-hooks.h> | |
66539a73 | 21 | #include <libc-internal.h> |
9fc813e1 | 22 | #include <unwind-link.h> |
fada9018 | 23 | #include <dlfcn/dlerror.h> |
a5a0310d | 24 | |
f8847d83 | 25 | #include "../nss/nsswitch.h" |
3ce1f295 | 26 | #include "../libio/libioP.h" |
6906cea4 | 27 | |
a5a0310d UD |
28 | DEFINE_HOOK (__libc_subfreeres, (void)); |
29 | ||
c877418f RM |
30 | symbol_set_define (__libc_freeres_ptrs); |
31 | ||
2827ab99 CD |
32 | extern __attribute__ ((weak)) void __libpthread_freeres (void); |
33 | ||
c877418f | 34 | void __libc_freeres_fn_section |
a5a0310d UD |
35 | __libc_freeres (void) |
36 | { | |
37 | /* This function might be called from different places. So better | |
38 | protect for multiple executions since these are fatal. */ | |
4a0f14bc | 39 | static long int already_called; |
a5a0310d | 40 | |
6c8dbf00 | 41 | if (!atomic_compare_and_exchange_bool_acq (&already_called, 1, 0)) |
6906cea4 | 42 | { |
6c8dbf00 | 43 | void *const *p; |
c877418f | 44 | |
171689da | 45 | call_function_static_weak (__nss_module_freeres); |
f8847d83 DD |
46 | call_function_static_weak (__nss_action_freeres); |
47 | call_function_static_weak (__nss_database_freeres); | |
171689da | 48 | |
6906cea4 | 49 | _IO_cleanup (); |
6906cea4 | 50 | |
2827ab99 | 51 | /* We run the resource freeing after IO cleanup. */ |
6906cea4 | 52 | RUN_HOOK (__libc_subfreeres, ()); |
c877418f | 53 | |
2827ab99 CD |
54 | /* Call the libpthread list of cleanup functions |
55 | (weak-ref-and-check). */ | |
56 | if (&__libpthread_freeres != NULL) | |
57 | __libpthread_freeres (); | |
58 | ||
9fc813e1 FW |
59 | #ifdef SHARED |
60 | __libc_unwind_link_freeres (); | |
61 | #endif | |
62 | ||
fada9018 FW |
63 | call_function_static_weak (__libc_dlerror_result_free); |
64 | ||
c877418f | 65 | for (p = symbol_set_first_element (__libc_freeres_ptrs); |
6c8dbf00 OB |
66 | !symbol_set_end_p (__libc_freeres_ptrs, p); ++p) |
67 | free (*p); | |
6906cea4 | 68 | } |
a5a0310d | 69 | } |
37ba7d66 | 70 | libc_hidden_def (__libc_freeres) |