1 /* SPDX-License-Identifier: GPL-2.0 */ 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 11 enum kcov_mode { 12 /* Coverage collection is not enabled yet. */ 13 KCOV_MODE_DISABLED = 0, 14 /* KCOV was initialized, but tracing mode hasn't been chosen yet. */ 15 KCOV_MODE_INIT = 1, 16 /* 17 * Tracing coverage collection mode. 18 * Covered PCs are collected in a per-task buffer. 19 */ 20 KCOV_MODE_TRACE_PC = 2, 21 /* Collecting comparison operands mode. */ 22 KCOV_MODE_TRACE_CMP = 3, 23 }; 24 25 void kcov_task_init(struct task_struct *t); 26 void kcov_task_exit(struct task_struct *t); 27 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 */ 35