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b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
c5e63197 JO |
2 | #ifndef _LINUX_PERF_REGS_H |
3 | #define _LINUX_PERF_REGS_H | |
4 | ||
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5 | #include <linux/sched/task_stack.h> |
6 | ||
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7 | struct perf_regs { |
8 | __u64 abi; | |
9 | struct pt_regs *regs; | |
10 | }; | |
11 | ||
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12 | #ifdef CONFIG_HAVE_PERF_REGS |
13 | #include <asm/perf_regs.h> | |
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14 | |
15 | #ifndef PERF_REG_EXTENDED_MASK | |
16 | #define PERF_REG_EXTENDED_MASK 0 | |
17 | #endif | |
18 | ||
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19 | u64 perf_reg_value(struct pt_regs *regs, int idx); |
20 | int perf_reg_validate(u64 mask); | |
4018994f | 21 | u64 perf_reg_abi(struct task_struct *task); |
88a7c26a | 22 | void perf_get_regs_user(struct perf_regs *regs_user, |
76a4efa8 | 23 | struct pt_regs *regs); |
c5e63197 | 24 | #else |
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25 | |
26 | #define PERF_REG_EXTENDED_MASK 0 | |
27 | ||
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28 | static inline u64 perf_reg_value(struct pt_regs *regs, int idx) |
29 | { | |
30 | return 0; | |
31 | } | |
32 | ||
33 | static inline int perf_reg_validate(u64 mask) | |
34 | { | |
35 | return mask ? -ENOSYS : 0; | |
36 | } | |
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37 | |
38 | static inline u64 perf_reg_abi(struct task_struct *task) | |
39 | { | |
40 | return PERF_SAMPLE_REGS_ABI_NONE; | |
41 | } | |
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42 | |
43 | static inline void perf_get_regs_user(struct perf_regs *regs_user, | |
76a4efa8 | 44 | struct pt_regs *regs) |
88a7c26a AL |
45 | { |
46 | regs_user->regs = task_pt_regs(current); | |
47 | regs_user->abi = perf_reg_abi(current); | |
48 | } | |
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49 | #endif /* CONFIG_HAVE_PERF_REGS */ |
50 | #endif /* _LINUX_PERF_REGS_H */ |