| Greg Kroah-Hartman | b244131 | 2017-11-01 15:07:57 +0100 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| Dmitry Vyukov | 5c9a875 | 2016-03-22 14:27:30 -0700 | [diff] [blame] | 2 | #ifndef _LINUX_KCOV_H |
| 3 | #define _LINUX_KCOV_H |
| 4 | |
| 5 | #include <uapi/linux/kcov.h> |
| 6 | |
| 7 | struct task_struct; |
| 8 | |
| 9 | #ifdef CONFIG_KCOV |
| 10 | |
| Dmitry Vyukov | 5c9a875 | 2016-03-22 14:27:30 -0700 | [diff] [blame] | 11 | enum kcov_mode { |
| 12 | /* Coverage collection is not enabled yet. */ |
| 13 | KCOV_MODE_DISABLED = 0, |
| Victor Chibotaru | ded97d2 | 2017-11-17 15:30:46 -0800 | [diff] [blame] | 14 | /* KCOV was initialized, but tracing mode hasn't been chosen yet. */ |
| 15 | KCOV_MODE_INIT = 1, |
| Dmitry Vyukov | 5c9a875 | 2016-03-22 14:27:30 -0700 | [diff] [blame] | 16 | /* |
| 17 | * Tracing coverage collection mode. |
| 18 | * Covered PCs are collected in a per-task buffer. |
| 19 | */ |
| Victor Chibotaru | ded97d2 | 2017-11-17 15:30:46 -0800 | [diff] [blame] | 20 | KCOV_MODE_TRACE_PC = 2, |
| 21 | /* Collecting comparison operands mode. */ |
| 22 | KCOV_MODE_TRACE_CMP = 3, |
| Dmitry Vyukov | 5c9a875 | 2016-03-22 14:27:30 -0700 | [diff] [blame] | 23 | }; |
| 24 | |
| Victor Chibotaru | ded97d2 | 2017-11-17 15:30:46 -0800 | [diff] [blame] | 25 | void kcov_task_init(struct task_struct *t); |
| 26 | void kcov_task_exit(struct task_struct *t); |
| 27 | |
| Dmitry Vyukov | 5c9a875 | 2016-03-22 14:27:30 -0700 | [diff] [blame] | 28 | #else |
| 29 | |
| 30 | static inline void kcov_task_init(struct task_struct *t) {} |
| 31 | static inline void kcov_task_exit(struct task_struct *t) {} |
| 32 | |
| 33 | #endif /* CONFIG_KCOV */ |
| 34 | #endif /* _LINUX_KCOV_H */ |