| | 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 | static inline int in_exception_text(unsigned long ptr) |
| | 32 | { |
| | 33 | extern char __exception_text_start[]; |
| | 34 | extern char __exception_text_end[]; |
| | 35 | int in; |
| | 36 | |
| | 37 | in = ptr >= (unsigned long)&__exception_text_start && |
| | 38 | ptr < (unsigned long)&__exception_text_end; |
| | 39 | |
| | 40 | return in ? : __in_irqentry_text(ptr); |
| | 41 | } |
| | 42 | |
| | 43 | extern void __init early_trap_init(void *); |
| | 44 | extern void dump_backtrace_entry(unsigned long where, unsigned long from, unsigned long frame); |
| | 45 | extern void ptrace_break(struct task_struct *tsk, struct pt_regs *regs); |
| | 46 | |
| | 47 | extern void *vectors_page; |
| | 48 | |
| | 49 | #endif |
projects / mirror_ubuntu-bionic-kernel.git / blame_incremental