/* Copyright (C) 1991-2016 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. The GNU C Library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with the GNU C Library; if not, see <http://www.gnu.org/licenses/>. */ #ifndef _EXIT_H #define _EXIT_H 1 #include <stdbool.h> #include <stdint.h> enum { ef_free, /* `ef_free' MUST be zero! */ ef_us, ef_on, ef_at, ef_cxa }; struct exit_function { /* `flavour' should be of type of the `enum' above but since we need this element in an atomic operation we have to use `long int'. */ long int flavor; union { void (*at) (void); struct { void (*fn) (int status, void *arg); void *arg; } on; struct { void (*fn) (void *arg, int status); void *arg; void *dso_handle; } cxa; } func; }; struct exit_function_list { struct exit_function_list *next; size_t idx; struct exit_function fns[32]; }; extern struct exit_function_list *__exit_funcs attribute_hidden; extern struct exit_function_list *__quick_exit_funcs attribute_hidden; extern struct exit_function *__new_exitfn (struct exit_function_list **listp); extern uint64_t __new_exitfn_called attribute_hidden; extern void __run_exit_handlers (int status, struct exit_function_list **listp, bool run_list_atexit) attribute_hidden __attribute__ ((__noreturn__)); extern int __internal_atexit (void (*func) (void *), void *arg, void *d, struct exit_function_list **listp) attribute_hidden; extern int __cxa_at_quick_exit (void (*func) (void *), void *d); #endif /* exit.h */