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