include/linux/kcov.h

   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 */