u-boot/cmd/stackprot_test.c

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// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright 2021 Broadcom
*/
#include <common.h>
#include <command.h>
static int do_test_stackprot_fail(struct cmd_tbl *cmdtp, int flag, int argc,
char *const argv[])
{
/*
* In order to avoid having the compiler optimize away the stack smashing
* we need to do a little something here.
*/
char a[128];
memset(a, 0xa5, 512);
printf("We have smashed our stack as this should not exceed 128: sizeof(a) = %zd\n",
strlen(a));
return 0;
}
U_BOOT_CMD(stackprot_test, 1, 1, do_test_stackprot_fail,
"test stack protector fail", "");