MIPS64: Add big-endian support for mips64.

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 1237 matching lines @@
             '../../src/debug/mips/debug-mips.cc',
             '../../src/ic/mips/access-compiler-mips.cc',
             '../../src/ic/mips/handler-compiler-mips.cc',
             '../../src/ic/mips/ic-mips.cc',
             '../../src/ic/mips/ic-compiler-mips.cc',
             '../../src/ic/mips/stub-cache-mips.cc',
             '../../src/regexp/mips/regexp-macro-assembler-mips.cc',
             '../../src/regexp/mips/regexp-macro-assembler-mips.h',
           ],
         }],
-        ['v8_target_arch=="mips64el"', {
+        ['v8_target_arch=="mips64" or v8_target_arch=="mips64el"', {
           'sources': [  ### gcmole(arch:mips64el) ###
             '../../src/mips64/assembler-mips64.cc',
             '../../src/mips64/assembler-mips64.h',
             '../../src/mips64/assembler-mips64-inl.h',
             '../../src/mips64/builtins-mips64.cc',
             '../../src/mips64/codegen-mips64.cc',
             '../../src/mips64/codegen-mips64.h',
             '../../src/mips64/code-stubs-mips64.cc',
             '../../src/mips64/code-stubs-mips64.h',
             '../../src/mips64/constants-mips64.cc',
@@ skipping 817 matching lines @@
         }],
         ['want_separate_host_toolset==1', {
           'toolsets': ['host'],
         }, {
           'toolsets': ['target'],
         }],
       ],
     },
   ],
 }