| /* SPDX-License-Identifier: GPL-2.0 */ | |
| #ifndef _ASM_RISCV_STACKPROTECTOR_H | |
| #define _ASM_RISCV_STACKPROTECTOR_H | |
| 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; | |
| if (!IS_ENABLED(CONFIG_STACKPROTECTOR_PER_TASK)) | |
| __stack_chk_guard = current->stack_canary; | |
| } | |
| #endif /* _ASM_RISCV_STACKPROTECTOR_H */ |