| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * arch/arm64/kernel/probes/decode-insn.h |
| 3 | * |
| 4 | * Copyright (C) 2013 Linaro Limited. |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License version 2 as |
| 8 | * published by the Free Software Foundation. |
| 9 | * |
| 10 | * This program is distributed in the hope that it will be useful, |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 13 | * General Public License for more details. |
| 14 | */ |
| 15 | |
| 16 | #ifndef _ARM_KERNEL_KPROBES_ARM64_H |
| 17 | #define _ARM_KERNEL_KPROBES_ARM64_H |
| 18 | |
| 19 | #include <asm/kprobes.h> |
| 20 | |
| 21 | /* |
| 22 | * ARM strongly recommends a limit of 128 bytes between LoadExcl and |
| 23 | * StoreExcl instructions in a single thread of execution. So keep the |
| 24 | * max atomic context size as 32. |
| 25 | */ |
| 26 | #define MAX_ATOMIC_CONTEXT_SIZE (128 / sizeof(kprobe_opcode_t)) |
| 27 | |
| 28 | enum probe_insn { |
| 29 | INSN_REJECTED, |
| 30 | INSN_GOOD_NO_SLOT, |
| 31 | INSN_GOOD, |
| 32 | }; |
| 33 | |
| 34 | #ifdef CONFIG_KPROBES |
| 35 | enum probe_insn __kprobes |
| 36 | arm_kprobe_decode_insn(kprobe_opcode_t *addr, struct arch_specific_insn *asi); |
| 37 | #endif |
| 38 | enum probe_insn __kprobes |
| 39 | arm_probe_decode_insn(probe_opcode_t insn, struct arch_probe_insn *asi); |
| 40 | |
| 41 | #endif /* _ARM_KERNEL_KPROBES_ARM64_H */ |