Support VTune's JIT interface.

runtime/tools/gyp/runtime-configurations.gypi

 # 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.
 
 {
   'variables': {
     'dart_debug_optimization_level%': '2',
     # If we have not set dart_io_support to 1 in Dart's all.gypi or common.gypi,
     # then do not build the native libraries supporting  dart:io.
     'dart_io_support%': 0,
+    # Intel VTune related variables.
+    'dart_vtune_support%': 0,
+    'dart_vtune_root%': '/opt/intel/vtune_amplifier_xe',
+  },
+
+  'configurations': {
+    'Dart_ia32_Base': {
+      'variables': {
+        'dart_vtune_lib_dir': '<(dart_vtune_root)/lib32',
+      }
+    },
+
+    'Dart_x64_Base': {
+      'variables': {
+        'dart_vtune_lib_dir': '<(dart_vtune_root)/lib64',
+      }
+    },
   },
 
   'target_defaults': {
     'configurations': {
 
       'Dart_Base': {
         'abstract': 1,
         'xcode_settings': {
           'GCC_WARN_HIDDEN_VIRTUAL_FUNCTIONS': 'YES', # -Woverloaded-virtual
         },
@@ skipping 13 matching lines @@
         'defines': [
           'DEBUG',
         ],
       },
 
       'Dart_ia32_Base': {
         'abstract': 1,
         'xcode_settings': {
           'ARCHS': [ 'i386' ],
         },
+        'conditions': [
+          ['OS=="linux" and dart_vtune_support == 1', {
+            'ldflags': ['-L<(dart_vtune_root)/lib32'],
+          }]
+        ],
       },
 
       'Dart_x64_Base': {
         'abstract': 1,
         'xcode_settings': {
           'ARCHS': [ 'x86_64' ],
         },
+        'conditions': [
+          ['OS=="linux" and dart_vtune_support == 1', {
+            'ldflags': ['-L<(dart_vtune_root)/lib64'],
+          }]
+        ],
       },
 
       'Dart_simarm_Base': {
         'abstract': 1,
         'xcode_settings': {
           'ARCHS': [ 'i386' ],
           'GCC_OPTIMIZATION_LEVEL': '3',
         },
       },
 
       'Dart_Release': {
         'abstract': 1,
         'xcode_settings': {
           'GCC_OPTIMIZATION_LEVEL': '3',
         },
       },
     },
   },
 }