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files >> //lib/modules/5.4.0-153-generic/build/include/linux/kcov.h
/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _LINUX_KCOV_H #define _LINUX_KCOV_H #include <uapi/linux/kcov.h> struct task_struct; #ifdef CONFIG_KCOV enum kcov_mode { /* Coverage collection is not enabled yet. */ KCOV_MODE_DISABLED = 0, /* KCOV was initialized, but tracing mode hasn't been chosen yet. */ KCOV_MODE_INIT = 1, /* * Tracing coverage collection mode. * Covered PCs are collected in a per-task buffer. */ KCOV_MODE_TRACE_PC = 2, /* Collecting comparison operands mode. */ KCOV_MODE_TRACE_CMP = 3, }; #define KCOV_IN_CTXSW (1 << 30) void kcov_task_init(struct task_struct *t); void kcov_task_exit(struct task_struct *t); #define kcov_prepare_switch(t) \ do { \ (t)->kcov_mode |= KCOV_IN_CTXSW; \ } while (0) #define kcov_finish_switch(t) \ do { \ (t)->kcov_mode &= ~KCOV_IN_CTXSW; \ } while (0) #else static inline void kcov_task_init(struct task_struct *t) {} static inline void kcov_task_exit(struct task_struct *t) {} static inline void kcov_prepare_switch(struct task_struct *t) {} static inline void kcov_finish_switch(struct task_struct *t) {} #endif /* CONFIG_KCOV */ #endif /* _LINUX_KCOV_H */
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