diff --git a/liblog/include/android/log.h b/liblog/include/android/log.h
index ade2821..28c87e4 100644
--- a/liblog/include/android/log.h
+++ b/liblog/include/android/log.h
@@ -171,6 +171,36 @@
 #endif
     ;
 
+#ifndef log_id_t_defined
+#define log_id_t_defined
+typedef enum log_id {
+  LOG_ID_MIN = 0,
+
+  LOG_ID_MAIN = 0,
+  LOG_ID_RADIO = 1,
+  LOG_ID_EVENTS = 2,
+  LOG_ID_SYSTEM = 3,
+  LOG_ID_CRASH = 4,
+  LOG_ID_STATS = 5,
+  LOG_ID_SECURITY = 6,
+  LOG_ID_KERNEL = 7, /* place last, third-parties can not use it */
+
+  LOG_ID_MAX
+} log_id_t;
+#endif
+
+/*
+ * Send a simple string to the log.
+ */
+int __android_log_buf_write(int bufID, int prio, const char* tag,
+                            const char* text);
+int __android_log_buf_print(int bufID, int prio, const char* tag,
+                            const char* fmt, ...)
+#if defined(__GNUC__)
+    __attribute__((__format__(printf, 4, 5)))
+#endif
+    ;
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/liblog/liblog.map.txt b/liblog/liblog.map.txt
index 9d21e56..66670fe 100644
--- a/liblog/liblog.map.txt
+++ b/liblog/liblog.map.txt
@@ -3,8 +3,8 @@
     android_name_to_log_id; # vndk
     android_log_id_to_name; # vndk
     __android_log_assert;
-    __android_log_buf_print; # vndk
-    __android_log_buf_write; # vndk
+    __android_log_buf_print;
+    __android_log_buf_write;
     __android_log_print;
     __android_log_vprint;
     __android_log_write;