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/* 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; } 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); } 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