diff --git a/runtime/bin/io_natives.cc b/runtime/bin/io_natives.cc
index cbe0c83..8bbd2cd 100644
--- a/runtime/bin/io_natives.cc
+++ b/runtime/bin/io_natives.cc
@@ -40,6 +40,7 @@
   V(Platform_PathSeparator, 0)                                                 \
   V(Platform_LocalHostname, 0)                                                 \
   V(Platform_ExecutableName, 0)                                                \
+  V(Platform_ResolvedExecutableName, 0)                                        \
   V(Platform_Environment, 0)                                                   \
   V(Platform_ExecutableArguments, 0)                                           \
   V(Platform_PackageRoot, 0)                                                   \
diff --git a/runtime/bin/platform.cc b/runtime/bin/platform.cc
index 2f55f9d..0ed2bd3 100644
--- a/runtime/bin/platform.cc
+++ b/runtime/bin/platform.cc
@@ -13,7 +13,7 @@
 namespace bin {
 
 const char* Platform::executable_name_ = NULL;
-bool Platform::executable_name_resolved_ = false;
+const char* Platform::resolved_executable_name_ = NULL;
 const char* Platform::package_root_ = NULL;
 int Platform::script_index_ = 1;
 char** Platform::argv_ = NULL;
@@ -51,6 +51,16 @@
 }
 
 
+void FUNCTION_NAME(Platform_ResolvedExecutableName)(Dart_NativeArguments args) {
+  if (Platform::GetResolvedExecutableName() != NULL) {
+    Dart_SetReturnValue(
+        args, Dart_NewStringFromCString(Platform::GetResolvedExecutableName()));
+  } else {
+    Dart_SetReturnValue(args, Dart_Null());
+  }
+}
+
+
 void FUNCTION_NAME(Platform_ExecutableArguments)(Dart_NativeArguments args) {
   int end = Platform::GetScriptIndex();
   char** argv = Platform::GetArgv();
diff --git a/runtime/bin/platform.h b/runtime/bin/platform.h
index 6b81539..3d3c0f3 100644
--- a/runtime/bin/platform.h
+++ b/runtime/bin/platform.h
@@ -46,16 +46,15 @@
     executable_name_ = executable_name;
   }
   static const char* GetExecutableName() {
-    if (!executable_name_resolved_) {
-      // Try to resolve the executable path using platform specific APIs.
-      char* path = Platform::ResolveExecutablePath();
-      if (path != NULL) {
-        executable_name_ = path;
-      }
-      executable_name_resolved_ = true;
-    }
     return executable_name_;
   }
+  static const char* GetResolvedExecutableName() {
+    if (resolved_executable_name_ == NULL) {
+      // Try to resolve the executable path using platform specific APIs.
+      resolved_executable_name_ = Platform::ResolveExecutablePath();
+    }
+    return resolved_executable_name_;
+  }
 
   // Stores and gets the package root.
   static void SetPackageRoot(const char* package_root) {
@@ -80,8 +79,8 @@
  private:
   // The path to the executable.
   static const char* executable_name_;
-  // State to indicate whether the executable name has been resolved.
-  static bool executable_name_resolved_;
+  // The path to the resolved executable.
+  static const char* resolved_executable_name_;
 
   static const char* package_root_;
   static int script_index_;
diff --git a/runtime/bin/platform_macos.cc b/runtime/bin/platform_macos.cc
index 702bf01..351a829 100644
--- a/runtime/bin/platform_macos.cc
+++ b/runtime/bin/platform_macos.cc
@@ -7,6 +7,7 @@
 
 #include <mach-o/dyld.h>
 
+#include "bin/file.h"
 #include "bin/platform.h"
 
 #include <crt_externs.h>  // NOLINT
@@ -91,7 +92,10 @@
     free(path);
     return NULL;
   }
-  return path;
+  // Return the canonical path as the returned path might contain symlinks.
+  char* canon_path = File::GetCanonicalPath(path);
+  free(path);
+  return canon_path;
 }
 
 }  // namespace bin
diff --git a/runtime/bin/platform_patch.dart b/runtime/bin/platform_patch.dart
index fe1e90c..c917b54 100644
--- a/runtime/bin/platform_patch.dart
+++ b/runtime/bin/platform_patch.dart
@@ -10,6 +10,8 @@
       native "Platform_OperatingSystem";
   /* patch */ static _localHostname() native "Platform_LocalHostname";
   /* patch */ static _executable() native "Platform_ExecutableName";
+  /* patch */ static _resolvedExecutable()
+      native "Platform_ResolvedExecutableName";
   /* patch */ static _environment() native "Platform_Environment";
   /* patch */ static List<String> _executableArguments()
        native "Platform_ExecutableArguments";
diff --git a/runtime/bin/platform_win.cc b/runtime/bin/platform_win.cc
index afa924b..d109c82 100644
--- a/runtime/bin/platform_win.cc
+++ b/runtime/bin/platform_win.cc
@@ -5,6 +5,7 @@
 #include "platform/globals.h"
 #if defined(TARGET_OS_WINDOWS)
 
+#include "bin/file.h"
 #include "bin/platform.h"
 #include "bin/log.h"
 #include "bin/socket.h"
@@ -97,7 +98,10 @@
   }
   char* path = StringUtils::WideToUtf8(tmp_buffer);
   free(tmp_buffer);
-  return path;
+  // Return the canonical path as the returned path might contain symlinks.
+  char* canon_path = File::GetCanonicalPath(path);
+  free(path);
+  return canon_path;
 }
 
 }  // namespace bin
diff --git a/runtime/vm/dart_api_impl.cc b/runtime/vm/dart_api_impl.cc
index bc36704..15ef1ad 100644
--- a/runtime/vm/dart_api_impl.cc
+++ b/runtime/vm/dart_api_impl.cc
@@ -3182,10 +3182,20 @@
     Dart_Handle object) {
   TRACE_API_CALL(CURRENT_FUNC);
   intptr_t class_id = Api::ClassId(object);
-  if (RawObject::IsExternalTypedDataClassId(class_id) ||
-      RawObject::IsTypedDataViewClassId(class_id)) {
+  if (RawObject::IsExternalTypedDataClassId(class_id)) {
     return GetType(class_id);
   }
+  if (RawObject::IsTypedDataViewClassId(class_id)) {
+    // Check if data object of the view is external.
+    Isolate* isolate = Isolate::Current();
+    const Instance& view_obj = Api::UnwrapInstanceHandle(isolate, object);
+    ASSERT(!view_obj.IsNull());
+    const Instance& data_obj =
+        Instance::Handle(isolate, TypedDataView::Data(view_obj));
+    if (ExternalTypedData::IsExternalTypedData(data_obj)) {
+      return GetType(class_id);
+    }
+  }
   return Dart_TypedData_kInvalid;
 }
 
diff --git a/sdk/lib/_internal/compiler/js_lib/io_patch.dart b/sdk/lib/_internal/compiler/js_lib/io_patch.dart
index 8fbc6a7..792b74d 100644
--- a/sdk/lib/_internal/compiler/js_lib/io_patch.dart
+++ b/sdk/lib/_internal/compiler/js_lib/io_patch.dart
@@ -221,6 +221,10 @@
     throw new UnsupportedError("Platform._executable");
   }
   @patch
+  static _resolvedExecutable() {
+    throw new UnsupportedError("Platform._resolvedExecutable");
+  }
+  @patch
   static List<String> _executableArguments() {
     throw new UnsupportedError("Platform._executableArguments");
   }
diff --git a/sdk/lib/io/platform.dart b/sdk/lib/io/platform.dart
index 6b86095..9ad7b56 100644
--- a/sdk/lib/io/platform.dart
+++ b/sdk/lib/io/platform.dart
@@ -131,14 +131,25 @@
    * Returns the path of the executable used to run the script in this
    * isolate.
    *
-   * If supported by the platform the returned path will be absolute.
+   * The path returned is the literal path used to run the script. This
+   * path might be relative or just be a name from which the executable
+   * was found by searching the `PATH`.
    *
-   * If the execution environment does not support [executable] an empty
-   * string is returned.
+   * To get the absolute path to the resolved executable use
+   * [resolvedExecutable].
    */
   static String get executable => _Platform.executable;
 
   /**
+   * Returns the path of the executable used to run the script in this
+   * isolate after it has been resolved by the OS.
+   *
+   * This is the absolute path, with all symlinks resolved, to the
+   * executable used to run the script.
+   */
+  static String get resolvedExecutable => _Platform.resolvedExecutable;
+
+  /**
    * Returns the absolute URI of the script being run in this
    * isolate.
    *
diff --git a/sdk/lib/io/platform_impl.dart b/sdk/lib/io/platform_impl.dart
index 3883957..6380e0d 100644
--- a/sdk/lib/io/platform_impl.dart
+++ b/sdk/lib/io/platform_impl.dart
@@ -10,6 +10,7 @@
   external static String _operatingSystem();
   external static _localHostname();
   external static _executable();
+  external static _resolvedExecutable();
   /**
    * Retrieve the entries of the process environment.
    *
@@ -31,6 +32,7 @@
   external static String _version();
 
   static String executable = _executable();
+  static String resolvedExecutable = _resolvedExecutable();
   static String packageRoot = _packageRoot();
 
   // Cache the OS environemnt. This can be an OSError instance if
diff --git a/tests/standalone/io/platform_executable_test.dart b/tests/standalone/io/platform_resolved_executable_test.dart
similarity index 77%
rename from tests/standalone/io/platform_executable_test.dart
rename to tests/standalone/io/platform_resolved_executable_test.dart
index 1b6bce3..b5ae47c 100644
--- a/tests/standalone/io/platform_executable_test.dart
+++ b/tests/standalone/io/platform_resolved_executable_test.dart
@@ -35,7 +35,7 @@
   }
 
   var result = processResult.stdout.trim();
-  expectEquals(Platform.executable, result);
+  expectEquals(Platform.resolvedExecutable, result);
 }
 
 void testDartExecShouldNotBeInCurrentDir() {
@@ -60,23 +60,20 @@
 }
 
 void testShouldSucceedWithSourcePlatformExecutable() {
-  //print('*** Running normally');
-  verify(Platform.executable);
+  verify(Platform.resolvedExecutable);
 }
 
 void testExeSymLinked(Directory dir) {
   var dirUri = new Uri.directory(dir.path);
   var link = new Link.fromUri(dirUri.resolve('dart_exe_link'));
-  link.createSync(Platform.executable);
-  //print('*** Creating a sym-link to the executable');
+  link.createSync(Platform.resolvedExecutable);
   verify(link.path);
 }
 
 void testPathToDirWithExeSymLinked(Directory dir) {
   var dirUri = new Uri.directory(dir.path);
   var link = new Link.fromUri(dirUri.resolve('dart_exe_link'));
-  link.createSync(Platform.executable);
-  //print('*** Path to a directory that contains a sym-link to dart bin');
+  link.createSync(Platform.resolvedExecutable);
   verify('dart_exe_link', altPath: dir.path);
 }
 
@@ -87,14 +84,13 @@
   var linkDirUri = dirUri.resolve('dart_bin_dir_link');
   var link = new Link.fromUri(linkDirUri);
 
-  var exeFile = new File(Platform.executable);
+  var exeFile = new File(Platform.resolvedExecutable);
 
   link.createSync(exeFile.parent.path);
 
   var linkedBin =
       new Uri.directory(linkDirUri.toFilePath()).resolve(platformExeName);
 
-  //print('*** Running in a sym-linked directory');
   verify(linkedBin.toFilePath());
 }
 
@@ -104,19 +100,17 @@
   var linkDirUri = dirUri.resolve('dart_bin_dir_link');
   var link = new Link.fromUri(linkDirUri);
 
-  var exeFile = new File(Platform.executable);
+  var exeFile = new File(Platform.resolvedExecutable);
 
   link.createSync(exeFile.parent.path);
 
-  //print('*** Path points to a sym-linked SDK dir');
   verify(platformExeName, altPath: link.path);
 }
 
 void testPathToSDKDir() {
-  var exeFile = new File(Platform.executable);
+  var exeFile = new File(Platform.resolvedExecutable);
   var binDirPath = exeFile.parent.path;
 
-  //print('*** Running with PATH env set to environment - fixed in 16994 - thanks!');
   verify(platformExeName, altPath: binDirPath);
 }
 
@@ -130,24 +124,34 @@
 }
 
 String get platformExeName {
-  var raw = new Uri.file(Platform.executable);
+  var raw = new Uri.file(Platform.resolvedExecutable);
   return raw.pathSegments.last;
 }
 
 String get scriptPath => Platform.script.toFilePath();
 
 void main() {
+  // The same script is used for both running the tests and as for starting
+  // child verifying the value of Platform.resolvedExecutable. If the
+  // environment variable _SCRIPT_KEY is set this is a child process which
+  // should print the value of Platform.resolvedExecutable.
   if (Platform.environment.containsKey(_SCRIPT_KEY)) {
-    print(Platform.executable);
+    print(Platform.resolvedExecutable);
     return;
   }
 
   testDartExecShouldNotBeInCurrentDir();
   testShouldSucceedWithSourcePlatformExecutable(); /// 00: ok
-  withTempDir(testExeSymLinked); /// 01: ok
+  // dart:io does not support linking to files in Windows.
+  if (!Platform.isWindows) {
+    withTempDir(testExeSymLinked); /// 01: ok
+  }
   withTempDir(testExeDirSymLinked); /// 02: ok
   testPathToSDKDir(); /// 03: ok
   withTempDir(testPathPointsToSymLinkedSDKPath); /// 04: ok
-  withTempDir(testPathToDirWithExeSymLinked); /// 05: ok
+  // dart:io does not support linking to files in Windows.
+  if (!Platform.isWindows) {
+    withTempDir(testPathToDirWithExeSymLinked); /// 05: ok
+  }
   testShouldFailOutsidePath(); /// 06: ok
 }
diff --git a/tests/standalone/io/platform_test.dart b/tests/standalone/io/platform_test.dart
index 269a487..f074750 100644
--- a/tests/standalone/io/platform_test.dart
+++ b/tests/standalone/io/platform_test.dart
@@ -24,15 +24,21 @@
   Expect.isTrue(hostname is String && hostname != "");
   var environment = Platform.environment;
   Expect.isTrue(environment is Map<String, String>);
-  Expect.isTrue(Platform.executable.contains('dart'));
   if (!Platform.isWindows) {
-    Expect.isTrue(Platform.executable.startsWith('/'));
+    Expect.isTrue(Platform.executable.endsWith('dart'));
+    Expect.isTrue(Platform.resolvedExecutable.endsWith('dart'));
+  } else {
+    Expect.isTrue(Platform.executable.endsWith('dart.exe'));
+    Expect.isTrue(Platform.resolvedExecutable.endsWith('dart.exe'));
+  }
+  if (!Platform.isWindows) {
+    Expect.isTrue(Platform.resolvedExecutable.startsWith('/'));
   } else {
     // This assumes that tests (both locally and on the bots) are
     // running off a location referred to by a drive letter. If a UNC
     // location is used or long names ("\\?\" prefix) is used this
     // needs to be fixed.
-    Expect.equals(Platform.executable.substring(1, 3), ':\\');
+    Expect.equals(Platform.resolvedExecutable.substring(1, 3), ':\\');
   }
   // Move directory to be sure script is correct.
   var oldDir = Directory.current;
diff --git a/tests/standalone/standalone.status b/tests/standalone/standalone.status
index f3868b7..68f560a 100644
--- a/tests/standalone/standalone.status
+++ b/tests/standalone/standalone.status
@@ -17,15 +17,6 @@
 package/package_isolate_test: Fail # Issue 12474
 io/observatory_test: Fail
 
-[ $runtime == vm && ($system == macos || $system == windows) ]
-io/platform_executable_test/01: RuntimeError # Issue 16994
-io/platform_executable_test/02: RuntimeError # Issue 16994
-io/platform_executable_test/04: RuntimeError # Issue 16994
-io/platform_executable_test/05: RuntimeError # Issue 16994
-
-[ $runtime == vm && $system == windows ]
-io/platform_executable_test/06: RuntimeError # NEEDS TRIAGE (kevmoo)
-
 [ $runtime == vm && $checked ]
 # These tests have type errors on purpose.
 io/process_invalid_arguments_test: Fail, OK
@@ -167,6 +158,7 @@
 [ $system == windows ]
 io/skipping_dart2js_compilations_test: Fail # Issue 19551.
 verbose_gc_to_bmu_test: Skip
+io/platform_resolved_executable_test/06: RuntimeError  # Issue 23641
 
 [ $arch != ia32 && $arch != x64 && $arch != simarm && $arch != simarmv5te && $mode == debug ]
 verified_mem_test: Skip  # Not yet implemented.
@@ -219,10 +211,10 @@
 io/link_test: Crash # Instance of 'TypeOperator': type check unimplemented for _Nullary.
 io/link_uri_test: Crash # Instance of 'TypeOperator': type check unimplemented for _Nullary.
 io/observatory_test: Crash # Instance of 'TypeOperator': type check unimplemented for _Nullary.
-io/platform_executable_test/01: Crash # (try {test(tempDir);}finally {tempDir.deleteSync(recursive:true);}): try/finally
-io/platform_executable_test/02: Crash # (try {test(tempDir);}finally {tempDir.deleteSync(recursive:true);}): try/finally
-io/platform_executable_test/04: Crash # (try {test(tempDir);}finally {tempDir.deleteSync(recursive:true);}): try/finally
-io/platform_executable_test/05: Crash # (try {test(tempDir);}finally {tempDir.deleteSync(recursive:true);}): try/finally
+io/platform_resolved_executable_test/01: Crash # (try {test(tempDir);}finally {tempDir.deleteSync(recursive:true);}): try/finally
+io/platform_resolved_executable_test/02: Crash # (try {test(tempDir);}finally {tempDir.deleteSync(recursive:true);}): try/finally
+io/platform_resolved_executable_test/04: Crash # (try {test(tempDir);}finally {tempDir.deleteSync(recursive:true);}): try/finally
+io/platform_resolved_executable_test/05: Crash # (try {test(tempDir);}finally {tempDir.deleteSync(recursive:true);}): try/finally
 io/platform_test: Crash # Instance of 'TypeOperator': type check unimplemented for _Nullary.
 io/process_invalid_arguments_test: Crash # Instance of 'TypeOperator': type check unimplemented for _Nullary.
 io/raw_datagram_socket_test: Crash #  Unhandled node
diff --git a/tools/VERSION b/tools/VERSION
index 983e8a9..09befe8 100644
--- a/tools/VERSION
+++ b/tools/VERSION
@@ -28,4 +28,4 @@
 MINOR 11
 PATCH 0
 PRERELEASE 5
-PRERELEASE_PATCH 2
+PRERELEASE_PATCH 3