uprobes.h 1.6 KB

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  1. #ifndef _ASM_UPROBES_H
  2. #define _ASM_UPROBES_H
  3. /*
  4. * User-space Probes (UProbes) for x86
  5. *
  6. * This program is free software; you can redistribute it and/or modify
  7. * it under the terms of the GNU General Public License as published by
  8. * the Free Software Foundation; either version 2 of the License, or
  9. * (at your option) any later version.
  10. *
  11. * This program is distributed in the hope that it will be useful,
  12. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  14. * GNU General Public License for more details.
  15. *
  16. * You should have received a copy of the GNU General Public License
  17. * along with this program; if not, write to the Free Software
  18. * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  19. *
  20. * Copyright (C) IBM Corporation, 2008-2011
  21. * Authors:
  22. * Srikar Dronamraju
  23. * Jim Keniston
  24. */
  25. #include <linux/notifier.h>
  26. typedef u8 uprobe_opcode_t;
  27. #define MAX_UINSN_BYTES 16
  28. #define UPROBE_XOL_SLOT_BYTES 128 /* to keep it cache aligned */
  29. #define UPROBE_SWBP_INSN 0xcc
  30. #define UPROBE_SWBP_INSN_SIZE 1
  31. struct uprobe_xol_ops;
  32. struct arch_uprobe {
  33. union {
  34. u8 insn[MAX_UINSN_BYTES];
  35. u8 ixol[MAX_UINSN_BYTES];
  36. };
  37. const struct uprobe_xol_ops *ops;
  38. union {
  39. struct {
  40. s32 offs;
  41. u8 ilen;
  42. u8 opc1;
  43. } branch;
  44. struct {
  45. u8 fixups;
  46. u8 ilen;
  47. } defparam;
  48. };
  49. };
  50. struct arch_uprobe_task {
  51. #ifdef CONFIG_X86_64
  52. unsigned long saved_scratch_register;
  53. #endif
  54. unsigned int saved_trap_nr;
  55. unsigned int saved_tf;
  56. };
  57. #endif /* _ASM_UPROBES_H */