cregit-Linux how code gets into the kernel

Release 4.10 arch/arm64/include/asm/kprobes.h

/*
 * arch/arm64/include/asm/kprobes.h
 *
 * Copyright (C) 2013 Linaro Limited
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 */

#ifndef _ARM_KPROBES_H

#define _ARM_KPROBES_H

#include <linux/types.h>
#include <linux/ptrace.h>
#include <linux/percpu.h>


#define __ARCH_WANT_KPROBES_INSN_SLOT

#define MAX_INSN_SIZE			1


#define flush_insn_slot(p)		do { } while (0)

#define kretprobe_blacklist_size	0

#include <asm/probes.h>


struct prev_kprobe {
	
struct kprobe *kp;
	
unsigned int status;
};

/* Single step context for kprobe */

struct kprobe_step_ctx {
	
unsigned long ss_pending;
	
unsigned long match_addr;
};

/* per-cpu kprobe control block */

struct kprobe_ctlblk {
	
unsigned int kprobe_status;
	
unsigned long saved_irqflag;
	
struct prev_kprobe prev_kprobe;
	
struct kprobe_step_ctx ss_ctx;
	
struct pt_regs jprobe_saved_regs;
};

void arch_remove_kprobe(struct kprobe *);
int kprobe_fault_handler(struct pt_regs *regs, unsigned int fsr);
int kprobe_exceptions_notify(struct notifier_block *self,
			     unsigned long val, void *data);
int kprobe_breakpoint_handler(struct pt_regs *regs, unsigned int esr);
int kprobe_single_step_handler(struct pt_regs *regs, unsigned int esr);
void kretprobe_trampoline(void);
void __kprobes *trampoline_probe_handler(struct pt_regs *regs);

#endif /* _ARM_KPROBES_H */

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