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/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Copyright (C) 2012 Rabin Vincent <rabin at rab.in>
*/
#ifndef _ASM_UPROBES_H
#define _ASM_UPROBES_H
#include <asm/probes.h>
#include <asm/opcodes.h>
typedef u32 uprobe_opcode_t;
#define MAX_UINSN_BYTES 4
#define UPROBE_XOL_SLOT_BYTES 64
#define UPROBE_SWBP_ARM_INSN 0xe7f001f9
#define UPROBE_SS_ARM_INSN 0xe7f001fa
#define UPROBE_SWBP_INSN __opcode_to_mem_arm(UPROBE_SWBP_ARM_INSN)
#define UPROBE_SWBP_INSN_SIZE 4
struct arch_uprobe_task {
u32 backup;
unsigned long saved_trap_no;
};
struct arch_uprobe {
u8 insn[MAX_UINSN_BYTES];
unsigned long ixol[2];
uprobe_opcode_t bpinsn;
bool simulate;
u32 pcreg;
void (*prehandler)(struct arch_uprobe *auprobe,
struct arch_uprobe_task *autask,
struct pt_regs *regs);
void (*posthandler)(struct arch_uprobe *auprobe,
struct arch_uprobe_task *autask,
struct pt_regs *regs);
struct arch_probes_insn asi;
};
#endif