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 */ 42