sigcontext32.h 1.5 KB

1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465666768697071
  1. #ifndef _SIGCONTEXT32_H
  2. #define _SIGCONTEXT32_H 1
  3. /* signal context for 32bit programs. */
  4. #define X86_FXSR_MAGIC 0x0000
  5. struct _fpreg {
  6. unsigned short significand[4];
  7. unsigned short exponent;
  8. };
  9. struct _fpxreg {
  10. unsigned short significand[4];
  11. unsigned short exponent;
  12. unsigned short padding[3];
  13. };
  14. struct _xmmreg {
  15. __u32 element[4];
  16. };
  17. /* FSAVE frame with extensions */
  18. struct _fpstate_ia32 {
  19. /* Regular FPU environment */
  20. __u32 cw;
  21. __u32 sw;
  22. __u32 tag; /* not compatible to 64bit twd */
  23. __u32 ipoff;
  24. __u32 cssel;
  25. __u32 dataoff;
  26. __u32 datasel;
  27. struct _fpreg _st[8];
  28. unsigned short status;
  29. unsigned short magic; /* 0xffff = regular FPU data only */
  30. /* FXSR FPU environment */
  31. __u32 _fxsr_env[6];
  32. __u32 mxcsr;
  33. __u32 reserved;
  34. struct _fpxreg _fxsr_st[8];
  35. struct _xmmreg _xmm[8]; /* It's actually 16 */
  36. __u32 padding[56];
  37. };
  38. struct sigcontext_ia32 {
  39. unsigned short gs, __gsh;
  40. unsigned short fs, __fsh;
  41. unsigned short es, __esh;
  42. unsigned short ds, __dsh;
  43. unsigned int edi;
  44. unsigned int esi;
  45. unsigned int ebp;
  46. unsigned int esp;
  47. unsigned int ebx;
  48. unsigned int edx;
  49. unsigned int ecx;
  50. unsigned int eax;
  51. unsigned int trapno;
  52. unsigned int err;
  53. unsigned int eip;
  54. unsigned short cs, __csh;
  55. unsigned int eflags;
  56. unsigned int esp_at_signal;
  57. unsigned short ss, __ssh;
  58. unsigned int fpstate; /* really (struct _fpstate_ia32 *) */
  59. unsigned int oldmask;
  60. unsigned int cr2;
  61. };
  62. #endif