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kernel/linux-rt-4.4.41/arch/s390/include/asm/uprobes.h 1.11 KB
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  /*
   *    User-space Probes (UProbes) for s390
   *
   *    Copyright IBM Corp. 2014
   *    Author(s): Jan Willeke,
   */
  
  #ifndef _ASM_UPROBES_H
  #define _ASM_UPROBES_H
  
  #include <linux/notifier.h>
  
  typedef u16 uprobe_opcode_t;
  
  #define UPROBE_XOL_SLOT_BYTES	256 /* cache aligned */
  
  #define UPROBE_SWBP_INSN	0x0002
  #define UPROBE_SWBP_INSN_SIZE	2
  
  struct arch_uprobe {
  	union{
  		uprobe_opcode_t insn[3];
  		uprobe_opcode_t ixol[3];
  	};
  	unsigned int saved_per : 1;
  	unsigned int saved_int_code;
  };
  
  struct arch_uprobe_task {
  };
  
  int arch_uprobe_analyze_insn(struct arch_uprobe *aup, struct mm_struct *mm,
  			     unsigned long addr);
  int arch_uprobe_pre_xol(struct arch_uprobe *aup, struct pt_regs *regs);
  int arch_uprobe_post_xol(struct arch_uprobe *aup, struct pt_regs *regs);
  bool arch_uprobe_xol_was_trapped(struct task_struct *tsk);
  int arch_uprobe_exception_notify(struct notifier_block *self, unsigned long val,
  				 void *data);
  void arch_uprobe_abort_xol(struct arch_uprobe *ap, struct pt_regs *regs);
  unsigned long arch_uretprobe_hijack_return_addr(unsigned long trampoline,
  						struct pt_regs *regs);
  #endif	/* _ASM_UPROBES_H */