--- /dev/null
+#if !defined(_LINUX_XLOG_H)
+#define _LINUX_XLOG_H
+
+#include <linux/linkage.h>
+
+enum android_log_priority {
+ ANDROID_LOG_UNKNOWN = 0,
+ ANDROID_LOG_DEFAULT, /* only for SetMinPriority() */
+ ANDROID_LOG_VERBOSE,
+ ANDROID_LOG_DEBUG,
+ ANDROID_LOG_INFO,
+ ANDROID_LOG_WARN,
+ ANDROID_LOG_ERROR,
+ ANDROID_LOG_FATAL,
+ ANDROID_LOG_SILENT, /* only for SetMinPriority(); must be last */
+};
+
+#define LOGGER_ALE_ARGS_MAX 16
+
+struct ale_convert {
+ const char *tag_str;
+ const char *fmt_ptr;
+ const char *filename;
+ int lineno;
+
+ unsigned int hash;
+ char params[LOGGER_ALE_ARGS_MAX];
+};
+
+struct xlog_record {
+ const char *tag_str;
+ const char *fmt_str;
+ int prio;
+};
+
+#if defined(HAVE_ALE_FEATURE)
+
+int __xlog_ale_printk(int prio, const struct ale_convert *convert, ...);
+
+#define xlog_printk(prio, tag, fmt, ...) \
+ ({ \
+ static const struct ale_convert ____xlogk_ale_rec____ = \
+ { tag, fmt, __FILE__, prio, 0, "" }; \
+ __xlog_ale_printk(prio, &____xlogk_ale_rec____, \
+ ##__VA_ARGS__); \
+ })
+
+#else /* HAVE_ALE_FEATURE */
+
+asmlinkage int __xlog_printk(const struct xlog_record *rec, ...);
+
+int __xlog_ksystem_printk(const struct xlog_record *rec, ...);
+#ifdef CONFIG_HAVE_XLOG_FEATURE
+#define xlog_printk(prio, tag, fmt, ...) \
+ ({ \
+ static const struct xlog_record _xlog_rec = \
+ {tag, fmt, prio}; \
+ __xlog_printk(&_xlog_rec, ##__VA_ARGS__); \
+ })
+#define xlog_ksystem_printk(prio, tag, fmt, ...) \
+ ({ \
+ static const struct xlog_record _xlog_rec = \
+ {tag, fmt, prio}; \
+ __xlog_ksystem_printk(&_xlog_rec, ##__VA_ARGS__); \
+ })
+#else /* CONFIG_HAVE_XLOG_FEATURE */
+#define xlog_printk(prio, tag, fmt, ...) ((void)0)
+#define xlog_ksystem_printk(prio, tag, fmt, ...) ((void)0)
+#endif /* CONFIG_HAVE_XLOG_FEATURE */
+#endif /* HAVE_ALE_FEATURE */
+
+#endif