Allow extra library files to be snapshotted

tools/gyp/v8.gyp

 # Copyright 2012 the V8 project authors. All rights reserved.
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are
 # met:
 #
 #     * Redistributions of source code must retain the above copyright
 #       notice, this list of conditions and the following disclaimer.
 #     * Redistributions in binary form must reproduce the above
 #       copyright notice, this list of conditions and the following
 #       disclaimer in the documentation and/or other materials provided
@@ skipping 13 matching lines @@
 # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 {
   'variables': {
     'icu_use_data_file_flag%': 0,
     'v8_code': 1,
     'v8_random_seed%': 314159265,
     'embed_script%': "",
+    'v8_extra_library_files%': [],
     'mksnapshot_exec': '<(PRODUCT_DIR)/<(EXECUTABLE_PREFIX)mksnapshot<(EXECUTABLE_SUFFIX)',
   },
   'includes': ['../../build/toolchain.gypi', '../../build/features.gypi'],
   'targets': [
     {
       'target_name': 'v8',
       'dependencies_traverse': 1,
       'dependencies': ['v8_maybe_snapshot'],
       'conditions': [
         ['want_separate_host_toolset==1', {
@@ skipping 698 matching lines @@
         '../../src/interface-descriptors.h',
         '../../src/interpreter-irregexp.cc',
         '../../src/interpreter-irregexp.h',
         '../../src/isolate.cc',
         '../../src/isolate.h',
         '../../src/json-parser.h',
         '../../src/json-stringifier.h',
         '../../src/jsregexp-inl.h',
         '../../src/jsregexp.cc',
         '../../src/jsregexp.h',
-        '../../src/layout-descriptor-inl.h',
-        '../../src/layout-descriptor.cc',
-        '../../src/layout-descriptor.h',
+        '../../src/layout-descriptor-inl.h',
+        '../../src/layout-descriptor.cc',
+        '../../src/layout-descriptor.h',
         '../../src/list-inl.h',
         '../../src/list.h',
         '../../src/lithium-allocator-inl.h',
         '../../src/lithium-allocator.cc',
         '../../src/lithium-allocator.h',
         '../../src/lithium-codegen.cc',
         '../../src/lithium-codegen.h',
         '../../src/lithium.cc',
         '../../src/lithium.h',
         '../../src/lithium-inl.h',
@@ skipping 968 matching lines @@
         'libraries_bin_file': '<(SHARED_INTERMEDIATE_DIR)/libraries.bin',
         'libraries_experimental_bin_file': '<(SHARED_INTERMEDIATE_DIR)/libraries-experimental.bin',
       },
       'actions': [
         {
           'action_name': 'js2c',
           'inputs': [
             '../../tools/js2c.py',
             '<@(library_files)',
             '<@(i18n_library_files)',
+            '<@(v8_extra_library_files)',
           ],
           'outputs': [
             '<(SHARED_INTERMEDIATE_DIR)/libraries.cc',
           ],
           'action': [
             'python',
             '../../tools/js2c.py',
             '<(SHARED_INTERMEDIATE_DIR)/libraries.cc',
             'CORE',
             '<@(library_files)',
             '<@(i18n_library_files)',
+            '--extra',
+            '<@(v8_extra_library_files)',
           ],
           'conditions': [
             [ 'v8_use_external_startup_data==1', {
               'outputs': ['<@(libraries_bin_file)'],
               'action': [
                 '--startup_blob', '<@(libraries_bin_file)',
               ],
             }],
           ],
         },
@@ skipping 71 matching lines @@
         }],
         ['want_separate_host_toolset==1', {
           'toolsets': ['host'],
         }, {
           'toolsets': ['target'],
         }],
       ],
     },
   ],
 }