1. Figure out the modified libraries from the specifeid kernel file during

runtime/include/dart_api.h

 /*
  * Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
  * for details. All rights reserved. Use of this source code is governed by a
  * BSD-style license that can be found in the LICENSE file.
  */
 
 #ifndef RUNTIME_INCLUDE_DART_API_H_
 #define RUNTIME_INCLUDE_DART_API_H_
 
 /** \mainpage Dart Embedding API Reference
@@ skipping 2701 matching lines @@
  * =====================
  * Scripts and Libraries
  * =====================
  */
 
 typedef enum {
   Dart_kCanonicalizeUrl = 0,
   Dart_kScriptTag,
   Dart_kSourceTag,
   Dart_kImportTag,
+  Dart_kKernelTag,

[aam, 2017/08/18 16:04:20]

Can we please add a description of this tag in the comments below?

[siva, 2017/08/18 17:17:51]

Done.

 } Dart_LibraryTag;
 
 /**
  * The library tag handler is a multi-purpose callback provided by the
  * embedder to the Dart VM. The embedder implements the tag handler to
  * provide the ability to load Dart scripts and imports.
  *
  * -- TAGS --
  *
  * Dart_kCanonicalizeUrl
@@ skipping 619 matching lines @@
  *  compiled with DART_PRECOMPILED_RUNTIME).
  */
 DART_EXPORT bool Dart_IsPrecompiledRuntime();
 
 /**
  *  Print a native stack trace. Used for crash handling.
  */
 DART_EXPORT void Dart_DumpNativeStackTrace(void* context);
 
 #endif /* INCLUDE_DART_API_H_ */ /* NOLINT */