arch/x86/include/asm/asm.h

   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 */