VM: Add dart_precompiled build target, a standalone VM without the JIT compiler.

runtime/bin/bin.gypi

Index: runtime/bin/bin.gypi
diff --git a/runtime/bin/bin.gypi b/runtime/bin/bin.gypi
index a7f3bf79ceee41d4aa90d5c295f47ca6beaa2cb4..2a6d0de8448783406134e801978352161206bc8e 100644
--- a/runtime/bin/bin.gypi
+++ b/runtime/bin/bin.gypi
@@ -626,6 +626,50 @@
       },
     },
     {
+      # dart binary for running precompiled snapshots without the compiler.
+      'target_name': 'dart_precompiled',
+      'type': 'executable',
+      'dependencies': [
+        'libdart_precompiled',
+        'libdart_builtin',
+        'libdart_io',
+        'build_observatory#host',
+        'generate_snapshot_file#host',

[rmacnak, 2015/11/17 20:51:18]

Stub out this not-precompiled snapshot too.

[Florian Schneider, 2015/11/18 11:44:08]

Done.

+        'generate_resources_cc_file#host',
+        'generate_observatory_assets_cc_file#host',
+      ],
+      'include_dirs': [
+        '..',
+      ],
+      'sources': [
+        'main.cc',
+        'builtin_common.cc',
+        'builtin_natives.cc',
+        'builtin_nolib.cc',
+        'builtin.h',
+        'io_natives.h',
+        'vmservice_impl.cc',
+        'vmservice_impl.h',
+        '<(snapshot_cc_file)',

[rmacnak, 2015/11/17 20:51:18]

Stub out this not-precompiled snapshot too.

[Florian Schneider, 2015/11/18 11:44:08]

Done. Replaced with snapshot_empty.cc. This cuts off another ~1M from the
binary.

+        '<(resources_cc_file)',
+        '<(observatory_assets_cc_file)',
+      ],
+      'conditions': [
+        ['OS=="win"', {
+          'link_settings': {
+            'libraries': [ '-lws2_32.lib', '-lRpcrt4.lib', '-lwinmm.lib' ],
+          },
+          # Generate an import library on Windows, by exporting a function.
+          # Extensions use this import library to link to the API in dart.exe.
+          'msvs_settings': {
+            'VCLinkerTool': {
+              'AdditionalOptions': [ '/EXPORT:Dart_True' ],
+            },
+          },
+        }],
+      ],
+    },
+    {
       # dart binary built for the host. It does not use a snapshot
       # and does not include Observatory.
       'target_name': 'dart_bootstrap',