VM: Service isolate under precompilation.

runtime/vm/profiler_service.cc

 // Copyright (c) 2015, 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/profiler_service.h"
 
 #include "vm/growable_array.h"
 #include "vm/native_symbol.h"
 #include "vm/object.h"
 #include "vm/os.h"
@@ skipping 1858 matching lines @@
     // Check VM isolate for pc.
     if (vm_isolate_->heap()->CodeContains(pc)) {
       code ^= Code::LookupCodeInVmIsolate(pc);
       if (!code.IsNull()) {
         return new ProfileCode(ProfileCode::kDartCode,
                               code.EntryPoint(),
                               code.EntryPoint() + code.Size(),
                               code.compile_timestamp(),
                               code);
       }
+      // Precompiled instructions are in the VM isolate, but the code (except
+      // stubs) is in the current isolate.
+      code ^= Code::LookupCode(pc);
+      if (!code.IsNull()) {
+        return new ProfileCode(ProfileCode::kDartCode,
+                              code.EntryPoint(),
+                              code.EntryPoint() + code.Size(),
+                              code.compile_timestamp(),
+                              code);
+      }
       return new ProfileCode(ProfileCode::kCollectedCode,
                             pc,
                             (pc & kDartCodeAlignmentMask) + kDartCodeAlignment,
                             0,
                             code);
     }
 
     // Check NativeSymbolResolver for pc.
     uintptr_t native_start = 0;
     char* native_name = NativeSymbolResolver::LookupSymbolName(pc,
@@ skipping 403 matching lines @@
   ASSERT(sample_buffer != NULL);
 
   ClearProfileVisitor clear_profile(isolate);
   sample_buffer->VisitSamples(&clear_profile);
 
   // Enable profile interrupts.
   Profiler::BeginExecution(isolate);
 }
 
 }  // namespace dart