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kernel/linux-rt-4.4.41/arch/sh/include/asm/kprobes.h 1.44 KB
5113f6f70   김현기   kernel add
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  #ifndef __ASM_SH_KPROBES_H
  #define __ASM_SH_KPROBES_H
  
  #ifdef CONFIG_KPROBES
  
  #include <linux/types.h>
  #include <linux/ptrace.h>
  
  typedef insn_size_t kprobe_opcode_t;
  #define BREAKPOINT_INSTRUCTION	0xc33a
  
  #define MAX_INSN_SIZE 16
  #define MAX_STACK_SIZE 64
  #define MIN_STACK_SIZE(ADDR) (((MAX_STACK_SIZE) < \
  	(((unsigned long)current_thread_info()) + THREAD_SIZE - (ADDR))) \
  	? (MAX_STACK_SIZE) \
  	: (((unsigned long)current_thread_info()) + THREAD_SIZE - (ADDR)))
  
  #define flush_insn_slot(p)		do { } while (0)
  #define kretprobe_blacklist_size	0
  
  struct kprobe;
  
  void arch_remove_kprobe(struct kprobe *);
  void kretprobe_trampoline(void);
  void jprobe_return_end(void);
  
  /* Architecture specific copy of original instruction*/
  struct arch_specific_insn {
  	/* copy of the original instruction */
  	kprobe_opcode_t insn[MAX_INSN_SIZE];
  };
  
  struct prev_kprobe {
  	struct kprobe *kp;
  	unsigned long status;
  };
  
  /* per-cpu kprobe control block */
  struct kprobe_ctlblk {
  	unsigned long kprobe_status;
  	unsigned long jprobe_saved_r15;
  	struct pt_regs jprobe_saved_regs;
  	kprobe_opcode_t jprobes_stack[MAX_STACK_SIZE];
  	struct prev_kprobe prev_kprobe;
  };
  
  extern int kprobe_fault_handler(struct pt_regs *regs, int trapnr);
  extern int kprobe_exceptions_notify(struct notifier_block *self,
  				    unsigned long val, void *data);
  extern int kprobe_handle_illslot(unsigned long pc);
  #else
  
  #define kprobe_handle_illslot(pc)	(-1)
  
  #endif /* CONFIG_KPROBES */
  #endif /* __ASM_SH_KPROBES_H */