1/* SPDX-License-Identifier: GPL-2.0-only */ 2/* 3 * Copyright (C) 2012 Rabin Vincent <rabin at rab.in> 4 */ 5 6#ifndef _ASM_UPROBES_H 7#define _ASM_UPROBES_H 8 9#include <asm/probes.h> 10#include <asm/opcodes.h> 11 12typedef u32 uprobe_opcode_t; 13 14#define MAX_UINSN_BYTES 4 15#define UPROBE_XOL_SLOT_BYTES 64 16 17#define UPROBE_SWBP_ARM_INSN 0xe7f001f9 18#define UPROBE_SS_ARM_INSN 0xe7f001fa 19#define UPROBE_SWBP_INSN __opcode_to_mem_arm(UPROBE_SWBP_ARM_INSN) 20#define UPROBE_SWBP_INSN_SIZE 4 21 22struct arch_uprobe_task { 23 u32 backup; 24 unsigned long saved_trap_no; 25}; 26 27struct arch_uprobe { 28 u8 insn[MAX_UINSN_BYTES]; 29 unsigned long ixol[2]; 30 uprobe_opcode_t bpinsn; 31 bool simulate; 32 u32 pcreg; 33 void (*prehandler)(struct arch_uprobe *auprobe, 34 struct arch_uprobe_task *autask, 35 struct pt_regs *regs); 36 void (*posthandler)(struct arch_uprobe *auprobe, 37 struct arch_uprobe_task *autask, 38 struct pt_regs *regs); 39 struct arch_probes_insn asi; 40}; 41 42#endif 43