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/arch/x86/include/asm/asm.h

https://bitbucket.org/ndreys/linux-sunxi
C++ Header | 55 lines | 46 code | 8 blank | 1 comment | 0 complexity | df4ea6486064b257882883265775579e MD5 | raw file
Possible License(s): GPL-2.0, LGPL-2.0, AGPL-1.0
 1#ifndef _ASM_X86_ASM_H
 2#define _ASM_X86_ASM_H
 3
 4#ifdef __ASSEMBLY__
 5# define __ASM_FORM(x)	x
 6# define __ASM_EX_SEC	.section __ex_table, "a"
 7#else
 8# define __ASM_FORM(x)	" " #x " "
 9# define __ASM_EX_SEC	" .section __ex_table,\"a\"\n"
10#endif
11
12#ifdef CONFIG_X86_32
13# define __ASM_SEL(a,b) __ASM_FORM(a)
14#else
15# define __ASM_SEL(a,b) __ASM_FORM(b)
16#endif
17
18#define __ASM_SIZE(inst)	__ASM_SEL(inst##l, inst##q)
19#define __ASM_REG(reg)		__ASM_SEL(e##reg, r##reg)
20
21#define _ASM_PTR	__ASM_SEL(.long, .quad)
22#define _ASM_ALIGN	__ASM_SEL(.balign 4, .balign 8)
23
24#define _ASM_MOV	__ASM_SIZE(mov)
25#define _ASM_INC	__ASM_SIZE(inc)
26#define _ASM_DEC	__ASM_SIZE(dec)
27#define _ASM_ADD	__ASM_SIZE(add)
28#define _ASM_SUB	__ASM_SIZE(sub)
29#define _ASM_XADD	__ASM_SIZE(xadd)
30
31#define _ASM_AX		__ASM_REG(ax)
32#define _ASM_BX		__ASM_REG(bx)
33#define _ASM_CX		__ASM_REG(cx)
34#define _ASM_DX		__ASM_REG(dx)
35#define _ASM_SP		__ASM_REG(sp)
36#define _ASM_BP		__ASM_REG(bp)
37#define _ASM_SI		__ASM_REG(si)
38#define _ASM_DI		__ASM_REG(di)
39
40/* Exception table entry */
41#ifdef __ASSEMBLY__
42# define _ASM_EXTABLE(from,to)	    \
43	__ASM_EX_SEC ;		    \
44	_ASM_ALIGN ;		    \
45	_ASM_PTR from , to ;	    \
46	.previous
47#else
48# define _ASM_EXTABLE(from,to) \
49	__ASM_EX_SEC	\
50	_ASM_ALIGN "\n" \
51	_ASM_PTR #from "," #to "\n" \
52	" .previous\n"
53#endif
54
55#endif /* _ASM_X86_ASM_H */