Disable generating of code cache if the debugger is loaded

src/api.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/api.h"
 
 #include <string.h>  // For memcpy, strlen.
 #ifdef V8_USE_ADDRESS_SANITIZER
 #include <sanitizer/asan_interface.h>
 #endif  // V8_USE_ADDRESS_SANITIZER
@@ skipping 1566 matching lines @@
 
   // Support the old API for a transition period:
   // - kProduceToCache -> kProduceParserCache
   // - kNoCompileOptions + cached_data != NULL -> kConsumeParserCache
   if (options == kProduceDataToCache) {
     options = kProduceParserCache;
   } else if (options == kNoCompileOptions && source->cached_data) {
     options = kConsumeParserCache;
   }
 
+  // Don't try to produce any kind of cache when the debugger is loaded.
+  if (isolate->debug()->is_loaded() &&
+      (options == kProduceParserCache || options == kProduceCodeCache)) {
+    options = kNoCompileOptions;
+  }
+
   i::ScriptData* script_data = NULL;
   if (options == kConsumeParserCache || options == kConsumeCodeCache) {
     DCHECK(source->cached_data);
     // ScriptData takes care of pointer-aligning the data.
     script_data = new i::ScriptData(source->cached_data->data,
                                     source->cached_data->length);
   }
 
   i::Handle<i::String> str = Utils::OpenHandle(*(source->source_string));
   LOG_API(isolate, "ScriptCompiler::CompileUnbound");
@@ skipping 6098 matching lines @@
   Isolate* isolate = reinterpret_cast<Isolate*>(info.GetIsolate());
   Address callback_address =
       reinterpret_cast<Address>(reinterpret_cast<intptr_t>(callback));
   VMState<EXTERNAL> state(isolate);
   ExternalCallbackScope call_scope(isolate, callback_address);
   callback(info);
 }
 
 
 } }  // namespace v8::internal