| #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); |
| |
| #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); |
| } |
| |
| 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 |