Last snapshot bits to get working precompiled hello_world on x64.

runtime/vm/isolate.cc

 // Copyright (c) 2013, 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.
 
 #include "vm/isolate.h"
 
 #include "include/dart_api.h"
 #include "include/dart_native_api.h"
 #include "platform/assert.h"
 #include "platform/json.h"
@@ skipping 871 matching lines @@
   uword stack_allocated_local_address = reinterpret_cast<uword>(&func);
   return stack_allocated_local_address;
 #endif
 #else
   uword stack_allocated_local_address = reinterpret_cast<uword>(&func);
   return stack_allocated_local_address;
 #endif
 }
 
 
+void Isolate::SetupInstructionsSnapshotPage(
+    const uint8_t* instructions_snapshot_buffer) {
+  InstructionsSnapshot snapshot(instructions_snapshot_buffer);
+#if defined(DEBUG)
+  OS::Print("Precompiled instructions are at [%" Px ", %" Px ")\n",

[siva, 2015/09/16 16:45:41]

0x%" ..... 0x%" ....

[rmacnak, 2015/09/16 18:17:18]

Done.

+            reinterpret_cast<uword>(snapshot.instructions_start()),
+            reinterpret_cast<uword>(snapshot.instructions_start()) +
+            snapshot.instructions_size());
+#endif
+  heap_->SetupInstructionsSnapshotPage(snapshot.instructions_start(),
+                                       snapshot.instructions_size());
+}
+
+
 void Isolate::set_debugger_name(const char* name) {
   free(debugger_name_);
   debugger_name_ = strdup(name);
 }
 
 
 void Isolate::BuildName(const char* name_prefix) {
   ASSERT(name_ == NULL);
   if (name_prefix == NULL) {
     name_prefix = "isolate";
@@ skipping 1571 matching lines @@
                            serialized_message_, serialized_message_len_);
 }
 
 
 void IsolateSpawnState::Cleanup() {
   SwitchIsolateScope switch_scope(I);
   Dart::ShutdownIsolate();
 }
 
 }  // namespace dart