| xf.li | bdd93d5 | 2023-05-12 07:10:14 -0700 | [diff] [blame] | 1 | /* Copyright (C) 1991-2016 Free Software Foundation, Inc. |
| 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 |
| 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. |
| 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 |
| 12 | Lesser General Public License for more details. |
| 13 | |
| 14 | You should have received a copy of the GNU Lesser General Public |
| 15 | License along with the GNU C Library; if not, see |
| 16 | <http://www.gnu.org/licenses/>. */ |
| 17 | |
| 18 | #ifndef _EXIT_H |
| 19 | #define _EXIT_H 1 |
| 20 | |
| 21 | #include <stdbool.h> |
| 22 | #include <stdint.h> |
| 23 | |
| 24 | enum |
| 25 | { |
| 26 | ef_free, /* `ef_free' MUST be zero! */ |
| 27 | ef_us, |
| 28 | ef_on, |
| 29 | ef_at, |
| 30 | ef_cxa |
| 31 | }; |
| 32 | |
| 33 | struct exit_function |
| 34 | { |
| 35 | /* `flavour' should be of type of the `enum' above but since we need |
| 36 | this element in an atomic operation we have to use `long int'. */ |
| 37 | long int flavor; |
| 38 | union |
| 39 | { |
| 40 | void (*at) (void); |
| 41 | struct |
| 42 | { |
| 43 | void (*fn) (int status, void *arg); |
| 44 | void *arg; |
| 45 | } on; |
| 46 | struct |
| 47 | { |
| 48 | void (*fn) (void *arg, int status); |
| 49 | void *arg; |
| 50 | void *dso_handle; |
| 51 | } cxa; |
| 52 | } func; |
| 53 | }; |
| 54 | struct exit_function_list |
| 55 | { |
| 56 | struct exit_function_list *next; |
| 57 | size_t idx; |
| 58 | struct exit_function fns[32]; |
| 59 | }; |
| 60 | extern struct exit_function_list *__exit_funcs attribute_hidden; |
| 61 | extern struct exit_function_list *__quick_exit_funcs attribute_hidden; |
| 62 | |
| 63 | extern struct exit_function *__new_exitfn (struct exit_function_list **listp); |
| 64 | extern uint64_t __new_exitfn_called attribute_hidden; |
| 65 | |
| 66 | extern void __run_exit_handlers (int status, struct exit_function_list **listp, |
| 67 | bool run_list_atexit) |
| 68 | attribute_hidden __attribute__ ((__noreturn__)); |
| 69 | |
| 70 | extern int __internal_atexit (void (*func) (void *), void *arg, void *d, |
| 71 | struct exit_function_list **listp) |
| 72 | attribute_hidden; |
| 73 | extern int __cxa_at_quick_exit (void (*func) (void *), void *d); |
| 74 | |
| 75 | |
| 76 | #endif /* exit.h */ |