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c5e63197 JO |
1 | #ifndef _LINUX_PERF_REGS_H |
2 | #define _LINUX_PERF_REGS_H | |
3 | ||
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4 | #include <linux/sched/task_stack.h> |
5 | ||
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6 | struct perf_regs { |
7 | __u64 abi; | |
8 | struct pt_regs *regs; | |
9 | }; | |
10 | ||
c5e63197 JO |
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); | |
4018994f | 15 | u64 perf_reg_abi(struct task_struct *task); |
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16 | void perf_get_regs_user(struct perf_regs *regs_user, |
17 | struct pt_regs *regs, | |
18 | struct pt_regs *regs_user_copy); | |
c5e63197 JO |
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 | } | |
4018994f JO |
29 | |
30 | static inline u64 perf_reg_abi(struct task_struct *task) | |
31 | { | |
32 | return PERF_SAMPLE_REGS_ABI_NONE; | |
33 | } | |
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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 | } | |
c5e63197 JO |
42 | #endif /* CONFIG_HAVE_PERF_REGS */ |
43 | #endif /* _LINUX_PERF_REGS_H */ |