50 lines
1.2 KiB
C
50 lines
1.2 KiB
C
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/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _ASMARM_TRAP_H
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#define _ASMARM_TRAP_H
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#include <linux/list.h>
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struct pt_regs;
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struct task_struct;
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struct undef_hook {
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struct list_head node;
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u32 instr_mask;
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u32 instr_val;
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u32 cpsr_mask;
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u32 cpsr_val;
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int (*fn)(struct pt_regs *regs, unsigned int instr);
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};
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void register_undef_hook(struct undef_hook *hook);
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void unregister_undef_hook(struct undef_hook *hook);
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static inline int __in_irqentry_text(unsigned long ptr)
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{
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extern char __irqentry_text_start[];
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extern char __irqentry_text_end[];
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return ptr >= (unsigned long)&__irqentry_text_start &&
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ptr < (unsigned long)&__irqentry_text_end;
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}
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static inline int in_exception_text(unsigned long ptr)
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{
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extern char __exception_text_start[];
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extern char __exception_text_end[];
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int in;
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in = ptr >= (unsigned long)&__exception_text_start &&
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ptr < (unsigned long)&__exception_text_end;
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return in ? : __in_irqentry_text(ptr);
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}
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extern void __init early_trap_init(void *);
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extern void dump_backtrace_entry(unsigned long where, unsigned long from, unsigned long frame);
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extern void ptrace_break(struct task_struct *tsk, struct pt_regs *regs);
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extern void *vectors_page;
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#endif
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