1 /*
2 * Copyright (c) 2010-2014 Wind River Systems, Inc.
3 * Copyright (c) 2021 Nordic Semiconductor ASA
4 *
5 * SPDX-License-Identifier: Apache-2.0
6 */
7
8 /* Linkers may treat weak functions differently if they are located within
9 * the same object that calls the symbol or not.
10 *
11 * For example, when using armlink, then if the weak symbol is inside the object
12 * referring to it the weak symbol will be used. This will result in the symbol
13 * being multiply defined because both the weak and strong symbols are used.
14 *
15 * To GNU ld, it doesn't matter if the weak symbol is placed in the same object
16 * which uses the weak symbol. GNU ld will always link to the strong version.
17 *
18 * Having the weak main symbol in an independent file ensures that it will be
19 * correctly treated by multiple linkers.
20 */
21
22 #include <kernel_internal.h>
23
main(void)24 int __weak main(void)
25 {
26 /* NOP default main() if the application does not provide one. */
27 arch_nop();
28
29 return 0;
30 }
31
