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/*
* Copyright (c) 2018, ARM Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#include <stdint.h>
#include <arch_helpers.h>
#include <plat/common/platform.h>
#define RANDOM_CANARY_VALUE 2144346116U
u_register_t plat_get_stack_protector_canary(void)
{
/*
* Ideally, a random number should be returned instead of the
* combination of a timer's value and a compile-time constant.
*/
return RANDOM_CANARY_VALUE ^ (u_register_t)read_cntpct_el0();
}
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