asm.h 2.1 KB

1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465666768697071727374757677787980818283
  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_RAW(x) x
  6. # define __ASM_FORM_COMMA(x) x,
  7. #else
  8. # define __ASM_FORM(x) " " #x " "
  9. # define __ASM_FORM_RAW(x) #x
  10. # define __ASM_FORM_COMMA(x) " " #x ","
  11. #endif
  12. #ifdef CONFIG_X86_32
  13. # define __ASM_SEL(a,b) __ASM_FORM(a)
  14. # define __ASM_SEL_RAW(a,b) __ASM_FORM_RAW(a)
  15. #else
  16. # define __ASM_SEL(a,b) __ASM_FORM(b)
  17. # define __ASM_SEL_RAW(a,b) __ASM_FORM_RAW(b)
  18. #endif
  19. #define __ASM_SIZE(inst, ...) __ASM_SEL(inst##l##__VA_ARGS__, \
  20. inst##q##__VA_ARGS__)
  21. #define __ASM_REG(reg) __ASM_SEL_RAW(e##reg, r##reg)
  22. #define _ASM_PTR __ASM_SEL(.long, .quad)
  23. #define _ASM_ALIGN __ASM_SEL(.balign 4, .balign 8)
  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. #define _ASM_AX __ASM_REG(ax)
  31. #define _ASM_BX __ASM_REG(bx)
  32. #define _ASM_CX __ASM_REG(cx)
  33. #define _ASM_DX __ASM_REG(dx)
  34. #define _ASM_SP __ASM_REG(sp)
  35. #define _ASM_BP __ASM_REG(bp)
  36. #define _ASM_SI __ASM_REG(si)
  37. #define _ASM_DI __ASM_REG(di)
  38. /* Exception table entry */
  39. #ifdef __ASSEMBLY__
  40. # define _ASM_EXTABLE(from,to) \
  41. .pushsection "__ex_table","a" ; \
  42. .balign 8 ; \
  43. .long (from) - . ; \
  44. .long (to) - . ; \
  45. .popsection
  46. # define _ASM_EXTABLE_EX(from,to) \
  47. .pushsection "__ex_table","a" ; \
  48. .balign 8 ; \
  49. .long (from) - . ; \
  50. .long (to) - . + 0x7ffffff0 ; \
  51. .popsection
  52. # define _ASM_NOKPROBE(entry) \
  53. .pushsection "_kprobe_blacklist","aw" ; \
  54. _ASM_ALIGN ; \
  55. _ASM_PTR (entry); \
  56. .popsection
  57. #else
  58. # define _ASM_EXTABLE(from,to) \
  59. " .pushsection \"__ex_table\",\"a\"\n" \
  60. " .balign 8\n" \
  61. " .long (" #from ") - .\n" \
  62. " .long (" #to ") - .\n" \
  63. " .popsection\n"
  64. # define _ASM_EXTABLE_EX(from,to) \
  65. " .pushsection \"__ex_table\",\"a\"\n" \
  66. " .balign 8\n" \
  67. " .long (" #from ") - .\n" \
  68. " .long (" #to ") - . + 0x7ffffff0\n" \
  69. " .popsection\n"
  70. /* For C file, we already have NOKPROBE_SYMBOL macro */
  71. #endif
  72. #endif /* _ASM_X86_ASM_H */