#ifndef __API_DEBUGFS_H__#define __API_DEBUGFS_H__ #define _STR(x) #x#define STR(x) _STR(x) /* * On most systems <limits.h> would have given us this, but  not on some systems * (e.g. GNU/Hurd). */#ifndef PATH_MAX#define PATH_MAX 4096#endif #ifndef DEBUGFS_MAGIC#define DEBUGFS_MAGIC          0x64626720#endif #ifndef PERF_DEBUGFS_ENVIRONMENT#define PERF_DEBUGFS_ENVIRONMENT "PERF_DEBUGFS_DIR"#endif const char *debugfs_find_mountpoint(void);int debugfs_valid_mountpoint(const char *debugfs);char *debugfs_mount(const char *mountpoint); extern char debugfs_mountpoint[]; #endif /* __API_DEBUGFS_H__ */