root/include/asm-x86/asm.h

INCLUDED FROM

#ifndef ASM_X86__ASM_H
#define ASM_X86__ASM_H

#ifdef __ASSEMBLY__
# define __ASM_FORM(x)  x
# define __ASM_EX_SEC   .section __ex_table
#else
# define __ASM_FORM(x)  " " #x " "
# define __ASM_EX_SEC   " .section __ex_table,\"a\"\n"
#endif

#ifdef CONFIG_X86_32
# define __ASM_SEL(a,b) __ASM_FORM(a)
#else
# define __ASM_SEL(a,b) __ASM_FORM(b)
#endif

#define __ASM_SIZE(inst)        __ASM_SEL(inst##l, inst##q)
#define __ASM_REG(reg)          __ASM_SEL(e##reg, r##reg)

#define _ASM_PTR        __ASM_SEL(.long, .quad)
#define _ASM_ALIGN      __ASM_SEL(.balign 4, .balign 8)

#define _ASM_MOV        __ASM_SIZE(mov)
#define _ASM_INC        __ASM_SIZE(inc)
#define _ASM_DEC        __ASM_SIZE(dec)
#define _ASM_ADD        __ASM_SIZE(add)
#define _ASM_SUB        __ASM_SIZE(sub)
#define _ASM_XADD       __ASM_SIZE(xadd)

#define _ASM_AX         __ASM_REG(ax)
#define _ASM_BX         __ASM_REG(bx)
#define _ASM_CX         __ASM_REG(cx)
#define _ASM_DX         __ASM_REG(dx)
#define _ASM_SP         __ASM_REG(sp)
#define _ASM_BP         __ASM_REG(bp)
#define _ASM_SI         __ASM_REG(si)
#define _ASM_DI         __ASM_REG(di)

/* Exception table entry */
# define _ASM_EXTABLE(from,to) \
        __ASM_EX_SEC    \
        _ASM_ALIGN "\n" \
        _ASM_PTR #from "," #to "\n" \
        " .previous\n"

#endif /* ASM_X86__ASM_H */