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awilliam
GitHub Repository: awilliam/linux-vfio
 Path: blob/master/arch/x86/include/asm/asm.h
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#ifndef _ASM_X86_ASM_H

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#define _ASM_X86_ASM_H

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#ifdef __ASSEMBLY__

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# define __ASM_FORM(x)	x

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# define __ASM_EX_SEC	.section __ex_table, "a"

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#else

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# define __ASM_FORM(x)	" " #x " "

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# define __ASM_EX_SEC	" .section __ex_table,\"a\"\n"

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#endif

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#ifdef CONFIG_X86_32

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# define __ASM_SEL(a,b) __ASM_FORM(a)

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#else

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# define __ASM_SEL(a,b) __ASM_FORM(b)

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#endif

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#define __ASM_SIZE(inst)	__ASM_SEL(inst##l, inst##q)

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#define __ASM_REG(reg)		__ASM_SEL(e##reg, r##reg)

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#define _ASM_PTR	__ASM_SEL(.long, .quad)

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#define _ASM_ALIGN	__ASM_SEL(.balign 4, .balign 8)

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#define _ASM_MOV	__ASM_SIZE(mov)

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#define _ASM_INC	__ASM_SIZE(inc)

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#define _ASM_DEC	__ASM_SIZE(dec)

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#define _ASM_ADD	__ASM_SIZE(add)

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#define _ASM_SUB	__ASM_SIZE(sub)

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#define _ASM_XADD	__ASM_SIZE(xadd)

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#define _ASM_AX		__ASM_REG(ax)

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#define _ASM_BX		__ASM_REG(bx)

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#define _ASM_CX		__ASM_REG(cx)

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#define _ASM_DX		__ASM_REG(dx)

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#define _ASM_SP		__ASM_REG(sp)

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#define _ASM_BP		__ASM_REG(bp)

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#define _ASM_SI		__ASM_REG(si)

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#define _ASM_DI		__ASM_REG(di)

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/* Exception table entry */

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#ifdef __ASSEMBLY__

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# define _ASM_EXTABLE(from,to)	    \

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	__ASM_EX_SEC ;		    \

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	_ASM_ALIGN ;		    \

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	_ASM_PTR from , to ;	    \

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	.previous

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#else

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# define _ASM_EXTABLE(from,to) \

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	__ASM_EX_SEC	\

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	_ASM_ALIGN "\n" \

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	_ASM_PTR #from "," #to "\n" \

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	" .previous\n"

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#endif

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#endif /* _ASM_X86_ASM_H */

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