1 #ifndef _LINUX_PERF_REGS_H 2 #define _LINUX_PERF_REGS_H 3 4 #include <linux/sched/task_stack.h> 5 6 struct perf_regs { 7 __u64 abi; 8 struct pt_regs *regs; 9 }; 10 11 #ifdef CONFIG_HAVE_PERF_REGS 12 #include <asm/perf_regs.h> 13 u64 perf_reg_value(struct pt_regs *regs, int idx); 14 int perf_reg_validate(u64 mask); 15 u64 perf_reg_abi(struct task_struct *task); 16 void perf_get_regs_user(struct perf_regs *regs_user, 17 struct pt_regs *regs, 18 struct pt_regs *regs_user_copy); 19 #else 20 static inline u64 perf_reg_value(struct pt_regs *regs, int idx) 21 { 22 return 0; 23 } 24 25 static inline int perf_reg_validate(u64 mask) 26 { 27 return mask ? -ENOSYS : 0; 28 } 29 30 static inline u64 perf_reg_abi(struct task_struct *task) 31 { 32 return PERF_SAMPLE_REGS_ABI_NONE; 33 } 34 35 static inline void perf_get_regs_user(struct perf_regs *regs_user, 36 struct pt_regs *regs, 37 struct pt_regs *regs_user_copy) 38 { 39 regs_user->regs = task_pt_regs(current); 40 regs_user->abi = perf_reg_abi(current); 41 } 42 #endif /* CONFIG_HAVE_PERF_REGS */ 43 #endif /* _LINUX_PERF_REGS_H */ 44