Remove more feature in product mode

runtime/vm/profiler.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 "platform/address_sanitizer.h"
 #include "platform/memory_sanitizer.h"
 #include "platform/utils.h"
 
 #include "vm/allocation.h"
 #include "vm/atomic.h"
 #include "vm/code_patcher.h"
 #include "vm/debugger.h"
 #include "vm/instructions.h"
 #include "vm/isolate.h"
 #include "vm/json_stream.h"
 #include "vm/lockers.h"
 #include "vm/message_handler.h"
 #include "vm/native_symbol.h"
 #include "vm/object.h"
 #include "vm/os.h"
 #include "vm/profiler.h"
 #include "vm/reusable_handles.h"
 #include "vm/signal_handler.h"
 #include "vm/simulator.h"
 #include "vm/stack_frame.h"
 
 namespace dart {
 
-
 static const intptr_t kSampleSize = 8;
 
 DECLARE_FLAG(bool, trace_profiler);
-
-DEFINE_FLAG(bool, profile, true, "Enable Sampling Profiler");
 DEFINE_FLAG(bool, trace_profiled_isolates, false, "Trace profiled isolates.");
 
 #if defined(TARGET_OS_ANDROID) || defined(TARGET_ARCH_ARM64) ||                \
     defined(TARGET_ARCH_ARM) || defined(TARGET_ARCH_MIPS)
   DEFINE_FLAG(int, profile_period, 10000,
               "Time between profiler samples in microseconds. Minimum 50.");
 #else
   DEFINE_FLAG(int, profile_period, 1000,
               "Time between profiler samples in microseconds. Minimum 50.");
 #endif
 DEFINE_FLAG(int, max_profile_depth, kSampleSize,
             "Maximum number stack frames walked. Minimum 1. Maximum 255.");
 #if defined(USING_SIMULATOR)
 DEFINE_FLAG(bool, profile_vm, true,
             "Always collect native stack traces.");
 #else
 DEFINE_FLAG(bool, profile_vm, false,
             "Always collect native stack traces.");
 #endif
 
+#ifndef PRODUCT
+
 bool Profiler::initialized_ = false;
 SampleBuffer* Profiler::sample_buffer_ = NULL;
 
 
 void Profiler::InitOnce() {
   // Place some sane restrictions on user controlled flags.
   SetSamplePeriod(FLAG_profile_period);
   SetSampleDepth(FLAG_max_profile_depth);
   Sample::InitOnce();
-  if (!FLAG_profile) {
+  if (!FLAG_profiler) {
     return;
   }
   ASSERT(!initialized_);
   sample_buffer_ = new SampleBuffer();
   NativeSymbolResolver::InitOnce();
   ThreadInterrupter::SetInterruptPeriod(FLAG_profile_period);
   ThreadInterrupter::Startup();
   initialized_ = true;
 }
 
 
 void Profiler::Shutdown() {
-  if (!FLAG_profile) {
+  if (!FLAG_profiler) {
     return;
   }
   ASSERT(initialized_);
   ThreadInterrupter::Shutdown();
   NativeSymbolResolver::ShutdownOnce();
 }
 
 
 void Profiler::SetSampleDepth(intptr_t depth) {
   const int kMinimumDepth = 2;
@@ skipping 1290 matching lines @@
     InsertAt(1, return_address);
   }
 }
 
 
 ProcessedSampleBuffer::ProcessedSampleBuffer()
     : code_lookup_table_(new CodeLookupTable(Thread::Current())) {
   ASSERT(code_lookup_table_ != NULL);
 }
 
+#endif  // !PRODUCT
+
 }  // namespace dart