Release 4.15 arch/arm/include/asm/traps.h

/* 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;
}

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static inline int in_exception_text(unsigned long ptr)
{
	extern char __exception_text_start[];
	extern char __exception_text_end[];
	int in;

	in = ptr >= (unsigned long)&__exception_text_start &&
	     ptr < (unsigned long)&__exception_text_end;

	return in ? : __in_irqentry_text(ptr);
}

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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 task_struct *tsk, struct pt_regs *regs);

extern void *vectors_page;

#endif
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Directory: arch/arm/include/asm

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