Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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kernel
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linux
1#ifndef _LINUX_PERF_REGS_H
2#define _LINUX_PERF_REGS_H
3
4#include <linux/sched/task_stack.h>
5
6struct perf_regs {
7 __u64 abi;
8 struct pt_regs *regs;
9};
10
11#ifdef CONFIG_HAVE_PERF_REGS
12#include <asm/perf_regs.h>
13u64 perf_reg_value(struct pt_regs *regs, int idx);
14int perf_reg_validate(u64 mask);
15u64 perf_reg_abi(struct task_struct *task);
16void perf_get_regs_user(struct perf_regs *regs_user,
17 struct pt_regs *regs,
18 struct pt_regs *regs_user_copy);
19#else
20static inline u64 perf_reg_value(struct pt_regs *regs, int idx)
21{
22 return 0;
23}
24
25static inline int perf_reg_validate(u64 mask)
26{
27 return mask ? -ENOSYS : 0;
28}
29
30static inline u64 perf_reg_abi(struct task_struct *task)
31{
32 return PERF_SAMPLE_REGS_ABI_NONE;
33}
34
35static 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 */