include/asm-arm/traps.h

   1 #ifndef _ASMARM_TRAP_H
   2 #define _ASMARM_TRAP_H
   3
   4 #include <linux/list.h>
   5
   6 struct undef_hook {
   7         struct list_head node;
   8         u32 instr_mask;
   9         u32 instr_val;
  10         u32 cpsr_mask;
  11         u32 cpsr_val;
  12         int (*fn)(struct pt_regs *regs, unsigned int instr);
  13 };
  14
  15 void register_undef_hook(struct undef_hook *hook);
  16 void unregister_undef_hook(struct undef_hook *hook);
  17
  18 static inline int in_exception_text(unsigned long ptr)
  19 {
  20         extern char __exception_text_start[];
  21         extern char __exception_text_end[];
  22
  23         return ptr >= (unsigned long)&__exception_text_start &&
  24                ptr < (unsigned long)&__exception_text_end;
  25 }
  26
  27 #endif