asm.h 1.8 KB

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  1. #ifndef _ASM_X86_ASM_H
  2. #define _ASM_X86_ASM_H
  3. #ifdef __ASSEMBLY__
  4. # define __ASM_FORM(x) x
  5. # define __ASM_FORM_COMMA(x) x,
  6. #else
  7. # define __ASM_FORM(x) " " #x " "
  8. # define __ASM_FORM_COMMA(x) " " #x ","
  9. #endif
  10. #ifdef CONFIG_X86_32
  11. # define __ASM_SEL(a,b) __ASM_FORM(a)
  12. #else
  13. # define __ASM_SEL(a,b) __ASM_FORM(b)
  14. #endif
  15. #define __ASM_SIZE(inst, ...) __ASM_SEL(inst##l##__VA_ARGS__, \
  16. inst##q##__VA_ARGS__)
  17. #define __ASM_REG(reg) __ASM_SEL(e##reg, r##reg)
  18. #define _ASM_PTR __ASM_SEL(.long, .quad)
  19. #define _ASM_ALIGN __ASM_SEL(.balign 4, .balign 8)
  20. #define _ASM_MOV __ASM_SIZE(mov)
  21. #define _ASM_INC __ASM_SIZE(inc)
  22. #define _ASM_DEC __ASM_SIZE(dec)
  23. #define _ASM_ADD __ASM_SIZE(add)
  24. #define _ASM_SUB __ASM_SIZE(sub)
  25. #define _ASM_XADD __ASM_SIZE(xadd)
  26. #define _ASM_AX __ASM_REG(ax)
  27. #define _ASM_BX __ASM_REG(bx)
  28. #define _ASM_CX __ASM_REG(cx)
  29. #define _ASM_DX __ASM_REG(dx)
  30. #define _ASM_SP __ASM_REG(sp)
  31. #define _ASM_BP __ASM_REG(bp)
  32. #define _ASM_SI __ASM_REG(si)
  33. #define _ASM_DI __ASM_REG(di)
  34. /* Exception table entry */
  35. #ifdef __ASSEMBLY__
  36. # define _ASM_EXTABLE(from,to) \
  37. .pushsection "__ex_table","a" ; \
  38. .balign 8 ; \
  39. .long (from) - . ; \
  40. .long (to) - . ; \
  41. .popsection
  42. # define _ASM_EXTABLE_EX(from,to) \
  43. .pushsection "__ex_table","a" ; \
  44. .balign 8 ; \
  45. .long (from) - . ; \
  46. .long (to) - . + 0x7ffffff0 ; \
  47. .popsection
  48. #else
  49. # define _ASM_EXTABLE(from,to) \
  50. " .pushsection \"__ex_table\",\"a\"\n" \
  51. " .balign 8\n" \
  52. " .long (" #from ") - .\n" \
  53. " .long (" #to ") - .\n" \
  54. " .popsection\n"
  55. # define _ASM_EXTABLE_EX(from,to) \
  56. " .pushsection \"__ex_table\",\"a\"\n" \
  57. " .balign 8\n" \
  58. " .long (" #from ") - .\n" \
  59. " .long (" #to ") - . + 0x7ffffff0\n" \
  60. " .popsection\n"
  61. #endif
  62. #endif /* _ASM_X86_ASM_H */