blob: 8a1a4e57d4ad5ba76bd6ad0e67c8bdd560db9aab [file] [log] [blame]
* Copyright (c) 2018, ARM Limited and Contributors. All rights reserved.
* SPDX-License-Identifier: BSD-3-Clause
#include <stdint.h>
#include <arch_helpers.h>
#define RANDOM_CANARY_VALUE ((u_register_t) 3288484550995823360ULL)
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. As the
* FVP does not have any random number generator, this is better than
* nothing but not necessarily really secure.
return RANDOM_CANARY_VALUE ^ read_cntpct_el0();