Eric Lee / smarc-fsl-linux-kernel

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include/linux/perf_regs.h 969 Bytes
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c5e63197d   Jiri Olsa   perf: Unified API... 
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  #ifndef _LINUX_PERF_REGS_H
  #define _LINUX_PERF_REGS_H
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  struct perf_regs {
  	__u64		abi;
  	struct pt_regs	*regs;
  };
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  #ifdef CONFIG_HAVE_PERF_REGS
  #include <asm/perf_regs.h>
  u64 perf_reg_value(struct pt_regs *regs, int idx);
  int perf_reg_validate(u64 mask);
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  u64 perf_reg_abi(struct task_struct *task);
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  void perf_get_regs_user(struct perf_regs *regs_user,
  			struct pt_regs *regs,
  			struct pt_regs *regs_user_copy);
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  #else
  static inline u64 perf_reg_value(struct pt_regs *regs, int idx)
  {
  	return 0;
  }
  
  static inline int perf_reg_validate(u64 mask)
  {
  	return mask ? -ENOSYS : 0;
  }
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  static inline u64 perf_reg_abi(struct task_struct *task)
  {
  	return PERF_SAMPLE_REGS_ABI_NONE;
  }
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  static inline void perf_get_regs_user(struct perf_regs *regs_user,
  				      struct pt_regs *regs,
  				      struct pt_regs *regs_user_copy)
  {
  	regs_user->regs = task_pt_regs(current);
  	regs_user->abi = perf_reg_abi(current);
  }
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  #endif /* CONFIG_HAVE_PERF_REGS */
  #endif /* _LINUX_PERF_REGS_H */