Release 4.9 arch/arm/include/asm/jump_label.h

#ifndef _ASM_ARM_JUMP_LABEL_H

#define _ASM_ARM_JUMP_LABEL_H

#ifndef __ASSEMBLY__

#include <linux/types.h>
#include <asm/unified.h>


#define JUMP_LABEL_NOP_SIZE 4



static __always_inline bool arch_static_branch(struct static_key *key, bool branch)
{
	asm_volatile_goto("1:\n\t"
		 WASM(nop) "\n\t"
		 ".pushsection __jump_table,  \"aw\"\n\t"
		 ".word 1b, %l[l_yes], %c0\n\t"
		 ".popsection\n\t"
		 : :  "i" (&((char *)key)[branch]) :  : l_yes);

	return false;
l_yes:
	return true;
}

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4
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static __always_inline bool arch_static_branch_jump(struct static_key *key, bool branch)
{
	asm_volatile_goto("1:\n\t"
		 WASM(b) " %l[l_yes]\n\t"
		 ".pushsection __jump_table,  \"aw\"\n\t"
		 ".word 1b, %l[l_yes], %c0\n\t"
		 ".popsection\n\t"
		 : :  "i" (&((char *)key)[branch]) :  : l_yes);

	return false;
l_yes:
	return true;
}

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peter zijlstra
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rabin vincent
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16.36%
1
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ingo molnar
ingo molnar
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55
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3
100.00%


typedef u32 jump_label_t;


struct jump_entry {
	
jump_label_t code;
	
jump_label_t target;
	
jump_label_t key;
};

#endif  /* __ASSEMBLY__ */
#endif
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peter zijlstra
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20.00%
rabin vincent
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40.00%
ingo molnar
ingo molnar
20
13.16%
1
20.00%
anton blanchard
anton blanchard
6
3.95%
1
20.00%
Total
152
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5
100.00%
  
Directory: arch/arm/include/asm