| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| 2 | #ifndef _ASMARM_TRAP_H |
| 3 | #define _ASMARM_TRAP_H |
| 4 | |
| 5 | #include <linux/list.h> |
| 6 | |
| 7 | struct pt_regs; |
| 8 | struct task_struct; |
| 9 | |
| 10 | struct undef_hook { |
| 11 | struct list_head node; |
| 12 | u32 instr_mask; |
| 13 | u32 instr_val; |
| 14 | u32 cpsr_mask; |
| 15 | u32 cpsr_val; |
| 16 | int (*fn)(struct pt_regs *regs, unsigned int instr); |
| 17 | }; |
| 18 | |
| 19 | void register_undef_hook(struct undef_hook *hook); |
| 20 | void unregister_undef_hook(struct undef_hook *hook); |
| 21 | |
| 22 | static inline int __in_irqentry_text(unsigned long ptr) |
| 23 | { |
| 24 | extern char __irqentry_text_start[]; |
| 25 | extern char __irqentry_text_end[]; |
| 26 | |
| 27 | return ptr >= (unsigned long)&__irqentry_text_start && |
| 28 | ptr < (unsigned long)&__irqentry_text_end; |
| 29 | } |
| 30 | |
| 31 | extern void __init early_trap_init(void *); |
| 32 | extern void dump_backtrace_entry(unsigned long where, unsigned long from, unsigned long frame); |
| 33 | extern void ptrace_break(struct task_struct *tsk, struct pt_regs *regs); |
| 34 | |
| 35 | extern void *vectors_page; |
| 36 | |
| 37 | #endif |