1 /* 2 * Copyright (c) 2015-2018, Arm Limited and Contributors. All rights reserved. 3 * 4 * SPDX-License-Identifier: BSD-3-Clause 5 */ 6 7 #include <stdlib.h> 8 9 static void (*exitfun)(void); 10 11 void exit(int status) 12 { 13 if (exitfun != NULL) 14 (*exitfun)(); 15 for (;;) 16 ; 17 } 18 19 int atexit(void (*fun)(void)) 20 { 21 if (exitfun != NULL) 22 return -1; 23 exitfun = fun; 24 25 return 0; 26 } 27