VM: Precompiled rodata snapshot.

runtime/bin/main.cc

Index: runtime/bin/main.cc
diff --git a/runtime/bin/main.cc b/runtime/bin/main.cc
index 6be11f0cc2cb8bf01044760242a257486fd10e48..5f7f72dd3355481ae359c63c06be3a6ddaeb8e21 100644
--- a/runtime/bin/main.cc
+++ b/runtime/bin/main.cc
@@ -99,7 +99,8 @@ static const bool is_noopt = false;
 
 
 extern const char* kPrecompiledLibraryName;
-extern const char* kPrecompiledSymbolName;
+extern const char* kPrecompiledInstructionsSymbolName;
+extern const char* kPrecompiledDataSymbolName;
 static const char* kPrecompiledVmIsolateName = "precompiled.vmisolate";
 static const char* kPrecompiledIsolateName = "precompiled.isolate";
 static const char* kPrecompiledInstructionsName = "precompiled.S";
@@ -1553,15 +1554,21 @@ void main(int argc, char** argv) {
   EventHandler::Start();
 
   const uint8_t* instructions_snapshot = NULL;
+  const uint8_t* data_snapshot = NULL;
   if (run_precompiled_snapshot) {
     instructions_snapshot = reinterpret_cast<const uint8_t*>(
-        LoadLibrarySymbol(kPrecompiledLibraryName, kPrecompiledSymbolName));
+        LoadLibrarySymbol(kPrecompiledLibraryName,
+                          kPrecompiledInstructionsSymbolName));
+    data_snapshot = reinterpret_cast<const uint8_t*>(
+        LoadLibrarySymbol(kPrecompiledLibraryName,
+                          kPrecompiledDataSymbolName));
     ReadSnapshotFile(precompiled_snapshot_directory,
                      kPrecompiledVmIsolateName,
                      &vm_isolate_snapshot_buffer);
     ReadSnapshotFile(precompiled_snapshot_directory,
                      kPrecompiledIsolateName,
                      &isolate_snapshot_buffer);
+
   } else if (run_full_snapshot) {
     char* vm_snapshot_fname;
     char* isolate_snapshot_fname;
@@ -1579,7 +1586,7 @@ void main(int argc, char** argv) {
 
   // Initialize the Dart VM.
   char* error = Dart_Initialize(
-      vm_isolate_snapshot_buffer, instructions_snapshot,
+      vm_isolate_snapshot_buffer, instructions_snapshot, data_snapshot,
       CreateIsolateAndSetup, NULL, NULL, ShutdownIsolate,
       DartUtils::OpenFile,
       DartUtils::ReadFile,