| /* SPDX-License-Identifier: GPL-2.0 */ |
| #ifndef _LINUX_PERF_REGS_H |
| #define _LINUX_PERF_REGS_H |
| |
| #include <linux/sched/task_stack.h> |
| |
| struct perf_regs { |
| __u64 abi; |
| struct pt_regs *regs; |
| }; |
| |
| #ifdef CONFIG_HAVE_PERF_REGS |
| #include <asm/perf_regs.h> |
| |
| #ifndef PERF_REG_EXTENDED_MASK |
| #define PERF_REG_EXTENDED_MASK 0 |
| #endif |
| |
| u64 perf_reg_value(struct pt_regs *regs, int idx); |
| int perf_reg_validate(u64 mask); |
| u64 perf_reg_abi(struct task_struct *task); |
| void perf_get_regs_user(struct perf_regs *regs_user, |
| struct pt_regs *regs, |
| struct pt_regs *regs_user_copy); |
| #else |
| |
| #define PERF_REG_EXTENDED_MASK 0 |
| |
| static inline u64 perf_reg_value(struct pt_regs *regs, int idx) |
| { |
| return 0; |
| } |
| |
| static inline int perf_reg_validate(u64 mask) |
| { |
| return mask ? -ENOSYS : 0; |
| } |
| |
| static inline u64 perf_reg_abi(struct task_struct *task) |
| { |
| return PERF_SAMPLE_REGS_ABI_NONE; |
| } |
| |
| static inline void perf_get_regs_user(struct perf_regs *regs_user, |
| struct pt_regs *regs, |
| struct pt_regs *regs_user_copy) |
| { |
| regs_user->regs = task_pt_regs(current); |
| regs_user->abi = perf_reg_abi(current); |
| } |
| #endif /* CONFIG_HAVE_PERF_REGS */ |
| #endif /* _LINUX_PERF_REGS_H */ |