diff --git a/openmp/libomptarget/DeviceRTL/include/Debug.h b/openmp/libomptarget/DeviceRTL/include/Debug.h
--- a/openmp/libomptarget/DeviceRTL/include/Debug.h
+++ b/openmp/libomptarget/DeviceRTL/include/Debug.h
@@ -23,8 +23,16 @@
 
 ///}
 
-// TODO: We need to allow actual printf.
-#define PRINTF(fmt, ...) (void)fmt;
+/// Print
+/// {
+extern "C" {
+int printf(const char *format, ...);
+int vprintf(const char *format, __builtin_va_list args);
+}
+
+#define PRINTF(fmt, ...) (void)printf(fmt, __VA_ARGS__);
 #define PRINT(str) PRINTF("%s", str)
 
+///}
+
 #endif
diff --git a/openmp/libomptarget/DeviceRTL/src/Debug.cpp b/openmp/libomptarget/DeviceRTL/src/Debug.cpp
--- a/openmp/libomptarget/DeviceRTL/src/Debug.cpp
+++ b/openmp/libomptarget/DeviceRTL/src/Debug.cpp
@@ -28,4 +28,16 @@
 }
 }
 
+/// AMDGCN implementations of the printf.
+///
+///{
+#pragma omp begin declare variant match(device = {arch(amdgcn)})
+
+extern "C" {
+int vprintf(const char *format, __builtin_va_list args) { return 0; }
+}
+
+#pragma omp end declare variant
+///}
+
 #pragma omp end declare target