diff --git a/compiler-rt/lib/scudo/standalone/linux.cpp b/compiler-rt/lib/scudo/standalone/linux.cpp
--- a/compiler-rt/lib/scudo/standalone/linux.cpp
+++ b/compiler-rt/lib/scudo/standalone/linux.cpp
@@ -164,10 +164,17 @@
   return (ReadBytes == static_cast<ssize_t>(Length));
 }
 
+// Allocation free syslog-like API.
+extern "C" WEAK int async_safe_write_log(int pri, const char *tag,
+                                         const char *msg);
+
 void outputRaw(const char *Buffer) {
-  static HybridMutex Mutex;
-  ScopedLock L(Mutex);
-  write(2, Buffer, strlen(Buffer));
+  if (&async_safe_write_log) {
+    const s32 AndroidLogInfo = 4;
+    async_safe_write_log(AndroidLogInfo, "scudo", Buffer);
+  } else {
+    write(2, Buffer, strlen(Buffer));
+  }
 }
 
 extern "C" WEAK void android_set_abort_message(const char *);