LXR linux/include/asm-generic/ptrace.h

   1/* SPDX-License-Identifier: GPL-2.0-or-later */
   2/*
   3 * Common low level (register) ptrace helpers
   4 *
   5 * Copyright 2004-2011 Analog Devices Inc.
   6 */
   7
   8#ifndef __ASM_GENERIC_PTRACE_H__
   9#define __ASM_GENERIC_PTRACE_H__
  10
  11#ifndef __ASSEMBLY__
  12
  13/* Helpers for working with the instruction pointer */
  14#ifndef GET_IP
  15#define GET_IP(regs) ((regs)->pc)
  16#endif
  17#ifndef SET_IP
  18#define SET_IP(regs, val) (GET_IP(regs) = (val))
  19#endif
  20
  21static inline unsigned long instruction_pointer(struct pt_regs *regs)
  22{
  23        return GET_IP(regs);
  24}
  25static inline void instruction_pointer_set(struct pt_regs *regs,
  26                                           unsigned long val)
  27{
  28        SET_IP(regs, val);
  29}
  30
  31#ifndef profile_pc
  32#define profile_pc(regs) instruction_pointer(regs)
  33#endif
  34
  35/* Helpers for working with the user stack pointer */
  36#ifndef GET_USP
  37#define GET_USP(regs) ((regs)->usp)
  38#endif
  39#ifndef SET_USP
  40#define SET_USP(regs, val) (GET_USP(regs) = (val))
  41#endif
  42
  43static inline unsigned long user_stack_pointer(struct pt_regs *regs)
  44{
  45        return GET_USP(regs);
  46}
  47static inline void user_stack_pointer_set(struct pt_regs *regs,
  48                                          unsigned long val)
  49{
  50        SET_USP(regs, val);
  51}
  52
  53/* Helpers for working with the frame pointer */
  54#ifndef GET_FP
  55#define GET_FP(regs) ((regs)->fp)
  56#endif
  57#ifndef SET_FP
  58#define SET_FP(regs, val) (GET_FP(regs) = (val))
  59#endif
  60
  61static inline unsigned long frame_pointer(struct pt_regs *regs)
  62{
  63        return GET_FP(regs);
  64}
  65static inline void frame_pointer_set(struct pt_regs *regs,
  66                                     unsigned long val)
  67{
  68        SET_FP(regs, val);
  69}
  70
  71#endif /* __ASSEMBLY__ */
  72
  73#endif
  74