kprobes.h 2.2 KB

1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465666768697071727374757677
  1. #ifndef _ASM_KPROBES_H
  2. #define _ASM_KPROBES_H
  3. /*
  4. * Kernel Probes (KProbes)
  5. * include/asm-ia64/kprobes.h
  6. *
  7. * This program is free software; you can redistribute it and/or modify
  8. * it under the terms of the GNU General Public License as published by
  9. * the Free Software Foundation; either version 2 of the License, or
  10. * (at your option) any later version.
  11. *
  12. * This program is distributed in the hope that it will be useful,
  13. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  15. * GNU General Public License for more details.
  16. *
  17. * You should have received a copy of the GNU General Public License
  18. * along with this program; if not, write to the Free Software
  19. * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  20. *
  21. * Copyright (C) IBM Corporation, 2002, 2004
  22. * Copyright (C) Intel Corporation, 2005
  23. *
  24. * 2005-Apr Rusty Lynch <rusty.lynch@intel.com> and Anil S Keshavamurthy
  25. * <anil.s.keshavamurthy@intel.com> adapted from i386
  26. */
  27. #include <linux/types.h>
  28. #include <linux/ptrace.h>
  29. #include <asm/break.h>
  30. #define BREAK_INST (long)(__IA64_BREAK_KPROBE << 6)
  31. typedef struct _bundle {
  32. struct {
  33. unsigned long long template : 5;
  34. unsigned long long slot0 : 41;
  35. unsigned long long slot1_p0 : 64-46;
  36. } quad0;
  37. struct {
  38. unsigned long long slot1_p1 : 41 - (64-46);
  39. unsigned long long slot2 : 41;
  40. } quad1;
  41. } __attribute__((__aligned__(16))) bundle_t;
  42. #define JPROBE_ENTRY(pentry) (kprobe_opcode_t *)pentry
  43. typedef struct kprobe_opcode {
  44. bundle_t bundle;
  45. } kprobe_opcode_t;
  46. struct fnptr {
  47. unsigned long ip;
  48. unsigned long gp;
  49. };
  50. /* Architecture specific copy of original instruction*/
  51. struct arch_specific_insn {
  52. /* copy of the original instruction */
  53. kprobe_opcode_t insn;
  54. };
  55. /* ia64 does not need this */
  56. static inline void jprobe_return(void)
  57. {
  58. }
  59. #ifdef CONFIG_KPROBES
  60. extern int kprobe_exceptions_notify(struct notifier_block *self,
  61. unsigned long val, void *data);
  62. #else /* !CONFIG_KPROBES */
  63. static inline int kprobe_exceptions_notify(struct notifier_block *self,
  64. unsigned long val, void *data)
  65. {
  66. return 0;
  67. }
  68. #endif
  69. #endif /* _ASM_KPROBES_H */