1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /* 3 * arch/arm64/kernel/probes/decode-insn.h 4 * 5 * Copyright (C) 2013 Linaro Limited. 6 */ 7 8 #ifndef _ARM_KERNEL_KPROBES_ARM64_H 9 #define _ARM_KERNEL_KPROBES_ARM64_H 10 11 #include <asm/kprobes.h> 12 13 /* 14 * ARM strongly recommends a limit of 128 bytes between LoadExcl and 15 * StoreExcl instructions in a single thread of execution. So keep the 16 * max atomic context size as 32. 17 */ 18 #define MAX_ATOMIC_CONTEXT_SIZE (128 / sizeof(kprobe_opcode_t)) 19 20 enum probe_insn { 21 INSN_REJECTED, 22 INSN_GOOD_NO_SLOT, 23 INSN_GOOD, 24 }; 25 26 #ifdef CONFIG_KPROBES 27 enum probe_insn __kprobes 28 arm_kprobe_decode_insn(kprobe_opcode_t *addr, struct arch_specific_insn *asi); 29 #endif 30 enum probe_insn __kprobes 31 arm_probe_decode_insn(probe_opcode_t insn, struct arch_probe_insn *asi); 32 33 #endif /* _ARM_KERNEL_KPROBES_ARM64_H */ 34