LXR linux/include/linux/perf

   1#ifndef _LINUX_PERF_REGS_H
   2#define _LINUX_PERF_REGS_H
   3
   4struct perf_regs {
   5        __u64           abi;
   6        struct pt_regs  *regs;
   7};
   8
   9#ifdef CONFIG_HAVE_PERF_REGS
  10#include <asm/perf_regs.h>
  11u64 perf_reg_value(struct pt_regs *regs, int idx);
  12int perf_reg_validate(u64 mask);
  13u64 perf_reg_abi(struct task_struct *task);
  14void perf_get_regs_user(struct perf_regs *regs_user,
  15                        struct pt_regs *regs,
  16                        struct pt_regs *regs_user_copy);
  17#else
  18static inline u64 perf_reg_value(struct pt_regs *regs, int idx)
  19{
  20        return 0;
  21}
  22
  23static inline int perf_reg_validate(u64 mask)
  24{
  25        return mask ? -ENOSYS : 0;
  26}
  27
  28static inline u64 perf_reg_abi(struct task_struct *task)
  29{
  30        return PERF_SAMPLE_REGS_ABI_NONE;
  31}
  32
  33static inline void perf_get_regs_user(struct perf_regs *regs_user,
  34                                      struct pt_regs *regs,
  35                                      struct pt_regs *regs_user_copy)
  36{
  37        regs_user->regs = task_pt_regs(current);
  38        regs_user->abi = perf_reg_abi(current);
  39}
  40#endif /* CONFIG_HAVE_PERF_REGS */
  41#endif /* _LINUX_PERF_REGS_H */
  42