[linux-block.git] / include / asm-arm / traps.h

#ifndef _ASMARM_TRAP_H
#define _ASMARM_TRAP_H

#include <linux/list.h>

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_exception_text(unsigned long ptr)
{
	extern char __exception_text_start[];
	extern char __exception_text_end[];

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

#endif
Commit	Line	Data
1da177e4 LT	1	#ifndef _ASMARM_TRAP_H
	2	#define _ASMARM_TRAP_H
	3
	4	#include <linux/list.h>
	5
	6	struct undef_hook {
	7	struct list_head node;
	8	u32 instr_mask;
	9	u32 instr_val;
	10	u32 cpsr_mask;
	11	u32 cpsr_val;
	12	int (fn)(struct pt_regs regs, unsigned int instr);
	13	};
	14
	15	void register_undef_hook(struct undef_hook *hook);
	16	void unregister_undef_hook(struct undef_hook *hook);
	17
785d3cd2 NP	18	static inline int in_exception_text(unsigned long ptr)
	19	{
	20	extern char __exception_text_start[];
	21	extern char __exception_text_end[];
	22
	23	return ptr >= (unsigned long)&__exception_text_start &&
	24	ptr < (unsigned long)&__exception_text_end;
	25	}
	26
1da177e4	27	#endif