| * Copyright (c) 2017, ARM Limited and Contributors. All rights reserved. |
| * SPDX-License-Identifier: BSD-3-Clause |
| #include <arch_helpers.h> |
| #include <common/debug.h> |
| #include <platform_def.h> |
| u_register_t plat_get_stack_protector_canary(void) |
| u_register_t c[TRNG_NBYTES / sizeof(u_register_t)]; |
| if (juno_getentropy(c, sizeof(c)) != 0) { |
| ERROR("Not enough entropy to initialize canary value\n"); |
| * On Juno we get 128-bits of entropy in one round. |
| * Fuse the values together to form the canary. |
| for (i = 0; i < ARRAY_SIZE(c); i++) |