Initial SIMDBC interpreter.

runtime/vm/native_entry.cc

 // Copyright (c) 2011, 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/native_entry.h"
 
 #include "include/dart_api.h"
 
 #include "vm/bootstrap.h"
 #include "vm/code_patcher.h"
@@ skipping 72 matching lines @@
     if (r != NULL) {
       return r;
     }
   }
   return NULL;
 }
 
 
 uword NativeEntry::NativeCallWrapperEntry() {
   uword entry = reinterpret_cast<uword>(NativeEntry::NativeCallWrapper);
-#if defined(USING_SIMULATOR)
+#if defined(USING_SIMULATOR) && !defined(TARGET_ARCH_DBC)
+  // DBC does not use redirections unlike other simulators.
   entry = Simulator::RedirectExternalReference(
       entry, Simulator::kNativeCall, NativeEntry::kNumCallWrapperArguments);
 #endif
   return entry;
 }
 
 
 bool NativeEntry::ReturnValueIsError(NativeArguments* arguments) {
   RawObject* retval = arguments->ReturnValue();
   return (retval->IsHeapObject() &&
@@ skipping 66 matching lines @@
     } else {
       ASSERT(thread->api_reusable_scope() != scope);
       delete scope;
     }
     DEOPTIMIZE_ALOT;
     VERIFY_ON_TRANSITION;
   }
 }
 
 
+// DBC does not support lazy native call linking.
+#if !defined(TARGET_ARCH_DBC)
 static NativeFunction ResolveNativeFunction(Zone* zone,
                                             const Function& func,
                                             bool* is_bootstrap_native) {
   const Class& cls = Class::Handle(zone, func.Owner());
   const Library& library = Library::Handle(zone, cls.library());
 
   *is_bootstrap_native =
       Bootstrap::IsBootstapResolver(library.native_entry_resolver());
 
   const String& native_name = String::Handle(zone, func.native_name());
@@ skipping 63 matching lines @@
                      reinterpret_cast<uword>(LinkNativeCall),
                      Simulator::kBootstrapNativeCall,
                      NativeEntry::kNumArguments)));
 #endif
       ASSERT(current_trampoline.raw() ==
              StubCode::CallBootstrapCFunction_entry()->code());
     }
 #endif
 
     call_through_wrapper = !is_bootstrap_native;
-    const Code& trampoline = Code::Handle(call_through_wrapper ?
-        StubCode::CallNativeCFunction_entry()->code() :
-        StubCode::CallBootstrapCFunction_entry()->code());
+    const Code& trampoline =
+        Code::Handle(call_through_wrapper ?
+            StubCode::CallNativeCFunction_entry()->code() :
+            StubCode::CallBootstrapCFunction_entry()->code());
 
     NativeFunction patch_target_function = target_function;
 #if defined(USING_SIMULATOR)
     if (!call_through_wrapper) {
       patch_target_function = reinterpret_cast<NativeFunction>(
           Simulator::RedirectExternalReference(
               reinterpret_cast<uword>(patch_target_function),
               Simulator::kBootstrapNativeCall, NativeEntry::kNumArguments));
     }
 #endif
@@ skipping 12 matching lines @@
   // Tail-call resolved target.
   if (call_through_wrapper) {
     // Because this call is within a compilation unit, Clang doesn't respect
     // the ABI alignment here.
     NativeEntry::NativeCallWrapperNoStackCheck(
         args, reinterpret_cast<Dart_NativeFunction>(target_function));
   } else {
     target_function(arguments);
   }
 }
+#endif  // !defined(TARGET_ARCH_DBC)
 
 
 }  // namespace dart