[thirdparty/kernel/stable.git] / arch / arm / include / asm / uprobes.h

/* 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
Commit	Line	Data
d2912cb1	1	/* SPDX-License-Identifier: GPL-2.0-only */
c7edc9e3 DL	2	/*
c7edc9e3 DL	3	* Copyright (C) 2012 Rabin Vincent <rabin at rab.in>
c7edc9e3 DL	4	*/
	5
	6	#ifndef _ASM_UPROBES_H
	7	#define _ASM_UPROBES_H
	8
	9	#include <asm/probes.h>
	10	#include <asm/opcodes.h>
	11
	12	typedef 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
	22	struct arch_uprobe_task {
	23	u32 backup;
	24	unsigned long saved_trap_no;
	25	};
	26
	27	struct 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