1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3 * Copyright 2021 Broadcom
4 */
5
6 #include <common.h>
7 #include <command.h>
8
do_test_stackprot_fail(struct cmd_tbl * cmdtp,int flag,int argc,char * const argv[])9 static int do_test_stackprot_fail(struct cmd_tbl *cmdtp, int flag, int argc,
10 char *const argv[])
11 {
12 /*
13 * In order to avoid having the compiler optimize away the stack smashing
14 * we need to do a little something here.
15 */
16 char a[128];
17
18 memset(a, 0xa5, 512);
19
20 printf("We have smashed our stack as this should not exceed 128: sizeof(a) = %zd\n",
21 strlen(a));
22
23 return 0;
24 }
25
26 U_BOOT_CMD(stackprot_test, 1, 1, do_test_stackprot_fail,
27 "test stack protector fail", "");
28