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/*
* Based on arch/arm/include/asm/traps.h
*
* Copyright (C) 2012 ARM Ltd.
*
* 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.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef __ASM_TRAP_H
#define __ASM_TRAP_H
#include <linux/list.h>
struct pt_regs;
struct undef_hook {
struct list_head node;
u32 instr_mask;
u32 instr_val;
u64 pstate_mask;
u64 pstate_val;
int (*fn)(struct pt_regs *regs, u32 instr);
};
void register_undef_hook(struct undef_hook *hook);
void unregister_undef_hook(struct undef_hook *hook);
#ifdef CONFIG_FUNCTION_GRAPH_TRACER
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;
}
#else
static inline int __in_irqentry_text(unsigned long ptr)
{
return 0;
}
#endif
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);
}
#endif