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