arm-trusted-firmware/plat/qti/common/src/qti_stack_protector.c

27 lines
530 B
C

/*
* Copyright (c) 2018-2020, The Linux Foundation. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#include <assert.h>
#include <stdint.h>
#include <platform.h>
#include <platform_def.h>
#include <qti_rng.h>
#include <qtiseclib_interface.h>
u_register_t plat_get_stack_protector_canary(void)
{
u_register_t random = 0x0;
/*
* get random data , the below API doesn't return random = 0 on success
*/
qti_rng_get_data((uint8_t *) &random, sizeof(random));
assert(random != 0x0);
return random;
}