Cregit: Linux 5.15: traps.h

Contributors: 8
Author	Tokens	Token Proportion	Commits	Commit Proportion
Russell King	67	42.14%	2	20.00%
Rabin Vincent	40	25.16%	1	10.00%
Catalin Marinas	22	13.84%	2	20.00%
Will Deacon	10	6.29%	1	10.00%
Jason Wessel	8	5.03%	1	10.00%
Mikael Pettersson	6	3.77%	1	10.00%
Dmitry Safonov	5	3.14%	1	10.00%
Greg Kroah-Hartman	1	0.63%	1	10.00%
Total	159		10

/* 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, const char *loglvl);
extern void ptrace_break(struct pt_regs *regs);

extern void *vectors_page;

#endif