stackprotector.h

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_STACKPROTECTOR_H
#define _ASM_STACKPROTECTOR_H 1

extern unsigned long __stack_chk_guard;

/*
 * Initialize the stackprotector canary value.
 *
 * NOTE: this must only be called from functions that never return,
 * and it must always be inlined.
 */
static __always_inline void boot_init_stack_canary(void)
{
	unsigned long canary = get_random_canary();

	current->stack_canary = canary;
	__stack_chk_guard = current->stack_canary;
}

#endif /* __ASM_SH_STACKPROTECTOR_H */