Cregit: Linux 5.4: traps.h

Contributors: 7
Author	Tokens	Token Proportion	Commits	Commit Proportion
Russell King	67	43.51%	2	22.22%
Rabin Vincent	40	25.97%	1	11.11%
Catalin Marinas	22	14.29%	2	22.22%
Will Deacon	10	6.49%	1	11.11%
Jason Wessel	8	5.19%	1	11.11%
Mikael Pettersson	6	3.90%	1	11.11%
Greg Kroah-Hartman	1	0.65%	1	11.11%
Total	154		9

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASMARM_TRAP_H
#define _ASMARM_TRAP_H

#include <linux/list.h>

struct pt_regs;
struct task_struct;

struct undef_hook {
	struct list_head node;
	u32 instr_mask;
	u32 instr_val;
	u32 cpsr_mask;
	u32 cpsr_val;
	int (*fn)(struct pt_regs *regs, unsigned int instr);
};

void register_undef_hook(struct undef_hook *hook);
void unregister_undef_hook(struct undef_hook *hook);

static inline int __in_irqentry_text(unsigned long ptr)
{
	extern char __irqentry_text_start[];
	extern char __irqentry_text_end[];

	return ptr >= (unsigned long)&__irqentry_text_start &&
	       ptr < (unsigned long)&__irqentry_text_end;
}

extern void __init early_trap_init(void *);
extern void dump_backtrace_entry(unsigned long where, unsigned long from, unsigned long frame);
extern void ptrace_break(struct pt_regs *regs);

extern void *vectors_page;

#endif