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kernel/linux-rt-4.4.41/arch/sparc/include/asm/jump_label.h 997 Bytes
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  #ifndef _ASM_SPARC_JUMP_LABEL_H
  #define _ASM_SPARC_JUMP_LABEL_H
  
  #ifndef __ASSEMBLY__
  
  #include <linux/types.h>
  
  #define JUMP_LABEL_NOP_SIZE 4
  
  static __always_inline bool arch_static_branch(struct static_key *key, bool branch)
  {
  	asm_volatile_goto("1:
  \t"
  		 "nop
  \t"
  		 "nop
  \t"
  		 ".pushsection __jump_table,  \"aw\"
  \t"
  		 ".align 4
  \t"
  		 ".word 1b, %l[l_yes], %c0
  \t"
  		 ".popsection 
  \t"
  		 : :  "i" (&((char *)key)[branch]) : : l_yes);
  
  	return false;
  l_yes:
  	return true;
  }
  
  static __always_inline bool arch_static_branch_jump(struct static_key *key, bool branch)
  {
  	asm_volatile_goto("1:
  \t"
  		 "b %l[l_yes]
  \t"
  		 "nop
  \t"
  		 ".pushsection __jump_table,  \"aw\"
  \t"
  		 ".align 4
  \t"
  		 ".word 1b, %l[l_yes], %c0
  \t"
  		 ".popsection 
  \t"
  		 : :  "i" (&((char *)key)[branch]) : : l_yes);
  
  	return false;
  l_yes:
  	return true;
  }
  
  typedef u32 jump_label_t;
  
  struct jump_entry {
  	jump_label_t code;
  	jump_label_t target;
  	jump_label_t key;
  };
  
  #endif  /* __ASSEMBLY__ */
  #endif