| David Brazdil | 0f672f6 | 2019-12-10 10:32:29 +0000 | [diff] [blame^] | 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 2 | /* |
| 3 | * arch/arm64/kernel/probes/decode-insn.h |
| 4 | * |
| 5 | * Copyright (C) 2013 Linaro Limited. |
| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 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 */ |