ptrace.h 2.5 KB

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  1. /* SPDX-License-Identifier: GPL-2.0 */
  2. #ifndef __UM_X86_PTRACE_H
  3. #define __UM_X86_PTRACE_H
  4. #include <linux/compiler.h>
  5. #ifndef CONFIG_X86_32
  6. #define __FRAME_OFFSETS /* Needed to get the R* macros */
  7. #endif
  8. #include <asm/ptrace-generic.h>
  9. #define user_mode(r) UPT_IS_USER(&(r)->regs)
  10. #define PT_REGS_AX(r) UPT_AX(&(r)->regs)
  11. #define PT_REGS_BX(r) UPT_BX(&(r)->regs)
  12. #define PT_REGS_CX(r) UPT_CX(&(r)->regs)
  13. #define PT_REGS_DX(r) UPT_DX(&(r)->regs)
  14. #define PT_REGS_SI(r) UPT_SI(&(r)->regs)
  15. #define PT_REGS_DI(r) UPT_DI(&(r)->regs)
  16. #define PT_REGS_BP(r) UPT_BP(&(r)->regs)
  17. #define PT_REGS_EFLAGS(r) UPT_EFLAGS(&(r)->regs)
  18. #define PT_REGS_CS(r) UPT_CS(&(r)->regs)
  19. #define PT_REGS_SS(r) UPT_SS(&(r)->regs)
  20. #define PT_REGS_DS(r) UPT_DS(&(r)->regs)
  21. #define PT_REGS_ES(r) UPT_ES(&(r)->regs)
  22. #define PT_REGS_ORIG_SYSCALL(r) PT_REGS_AX(r)
  23. #define PT_REGS_SYSCALL_RET(r) PT_REGS_AX(r)
  24. #define PT_FIX_EXEC_STACK(sp) do ; while(0)
  25. #define profile_pc(regs) PT_REGS_IP(regs)
  26. #define UPT_RESTART_SYSCALL(r) (UPT_IP(r) -= 2)
  27. #define PT_REGS_SET_SYSCALL_RETURN(r, res) (PT_REGS_AX(r) = (res))
  28. static inline long regs_return_value(struct pt_regs *regs)
  29. {
  30. return PT_REGS_AX(regs);
  31. }
  32. /*
  33. * Forward declaration to avoid including sysdep/tls.h, which causes a
  34. * circular include, and compilation failures.
  35. */
  36. struct user_desc;
  37. #ifdef CONFIG_X86_32
  38. extern int ptrace_get_thread_area(struct task_struct *child, int idx,
  39. struct user_desc __user *user_desc);
  40. extern int ptrace_set_thread_area(struct task_struct *child, int idx,
  41. struct user_desc __user *user_desc);
  42. #else
  43. #define PT_REGS_R8(r) UPT_R8(&(r)->regs)
  44. #define PT_REGS_R9(r) UPT_R9(&(r)->regs)
  45. #define PT_REGS_R10(r) UPT_R10(&(r)->regs)
  46. #define PT_REGS_R11(r) UPT_R11(&(r)->regs)
  47. #define PT_REGS_R12(r) UPT_R12(&(r)->regs)
  48. #define PT_REGS_R13(r) UPT_R13(&(r)->regs)
  49. #define PT_REGS_R14(r) UPT_R14(&(r)->regs)
  50. #define PT_REGS_R15(r) UPT_R15(&(r)->regs)
  51. #include <asm/errno.h>
  52. static inline int ptrace_get_thread_area(struct task_struct *child, int idx,
  53. struct user_desc __user *user_desc)
  54. {
  55. return -ENOSYS;
  56. }
  57. static inline int ptrace_set_thread_area(struct task_struct *child, int idx,
  58. struct user_desc __user *user_desc)
  59. {
  60. return -ENOSYS;
  61. }
  62. extern long arch_prctl(struct task_struct *task, int option,
  63. unsigned long __user *addr);
  64. #endif
  65. #define user_stack_pointer(regs) PT_REGS_SP(regs)
  66. #endif /* __UM_X86_PTRACE_H */