diff --git a/CMakeLists.txt b/CMakeLists.txt
index 32e909e1cce001dff49a90d7753be780e14f08ea..1abe068f0c6a2a54b4bcdcc675630859ef499c63 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,7 +1,32 @@
 cmake_minimum_required(VERSION 3.0)
 project(paddle-mobile)
-#add_definitions(-DPADDLE_MOBILE_DEBUG)
-#add_definitions(-DENABLE_EXCEPTION)
+
+option(DEBUGING "enable debug mode" OFF)
+option(USE_OPENMP "openmp support" OFF)
+option(USE_EXCEPTION "use std exception" OFF)
+
+if (DEBUGING)
+    set(CMAKE_BUILD_TYPE Debug)
+else()
+    set(CMAKE_BUILD_TYPE Release)
+endif ()
+
+if(DEBUGING)
+    message(STATUS "debuging")
+    add_definitions(-DPADDLE_MOBILE_DEBUG)
+
+else()
+    message(STATUS "releasing")
+    add_definitions(-fvisibility=hidden -fvisibility-inlines-hidden)
+endif()
+
+if (USE_EXCEPTION)
+    add_definitions(-DENABLE_EXCEPTION)
+    add_definitions(-fexceptions)
+else()
+    add_definitions(-fno-exceptions)
+
+endif ()
 
 if(IS_MAC)
     add_definitions(-DX86)
@@ -15,9 +40,7 @@ else ()
     add_definitions(-DX86)
 endif()
 
-
 set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++14")
-set(CMAKE_BUILD_TYPE Release)
 set(CMAKE_VERBOSE_MAKEFILE ON)
 set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
 set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY build)
@@ -29,7 +52,6 @@ file(GLOB_RECURSE PADDLE_MOBILE_H src/*.h)
 
 include_directories(src/)
 
-option(USE_OPENMP "openmp support" OFF)
 if(USE_OPENMP)
     set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fopenmp")
     add_definitions(-DPADDLE_MOBILE_USE_OPENMP)
@@ -97,6 +119,11 @@ else ()
     add_definitions(-DTRANSPOSE_OP)
 endif()
 
+
 add_library(paddle-mobile SHARED ${PADDLE_MOBILE_CC} ${PADDLE_MOBILE_H})
 
-add_subdirectory(test)
+if(DEBUGING)
+    add_subdirectory(test)
+endif()
+
+
diff --git a/src/common/macros.h b/src/common/macros.h
new file mode 100644
index 0000000000000000000000000000000000000000..ee38f19c9285b369e48c550b67f6c397695e73cf
--- /dev/null
+++ b/src/common/macros.h
@@ -0,0 +1,17 @@
+/* Copyright (c) 2018 PaddlePaddle Authors. All Rights Reserved.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License. */
+
+#pragma once
+
+#define EXPORT __attribute__((visibility("default")))
diff --git a/src/framework/data_layout.h b/src/framework/data_layout.h
index cb7bad66e3b3c4263a84b2c6f3beae0e82cec9cb..902c057d04f043b31ac8c8d074d928ed09cf3c1b 100644
--- a/src/framework/data_layout.h
+++ b/src/framework/data_layout.h
@@ -39,7 +39,7 @@ inline DataLayout StringToDataLayout(const std::string &str) {
   } else if (s == "ANYLAYOUT") {
     return DataLayout::kAnyLayout;
   } else {
-    PADDLE_MOBILE_THROW_EXCEPTION("Unknown storage order string: %s", s)
+    PADDLE_MOBILE_THROW_EXCEPTION("Unknown storage order string: %s", s.c_str())
   }
 }
 
diff --git a/src/framework/ddim.cpp b/src/framework/ddim.cpp
index 925287ebf63562914ce9bc87c8f8120f5d84bee8..3a4a3abb7cd4c632251e6f0190e32c99dd232c01 100644
--- a/src/framework/ddim.cpp
+++ b/src/framework/ddim.cpp
@@ -277,30 +277,9 @@ int arity(const DDim &d) {
   ArityVisitor arityVisitor = ArityVisitor();
   return DDim::ApplyVistor(arityVisitor, d);
 }
-  /// \cond HIDDEN
-
-  /// \endcond
-
-  // struct OSVistor : Vistor<std::ostream &> {
-  //  OSVistor(std::ostream &os) : os_(os) {}
-  //
-  //  template <int D>
-  //  std::ostream &operator()(Dim<D> dim) const {
-  //    return os_ << dim;
-  //  }
-  //
-  // private:
-  //  std::ostream &os_;
-  //};
-
-  // std::ostream &operator<<(std::ostream &os, const DDim &ddim) {
-  //  auto vistor = OSVistor(os);
-  //  DDim::ApplyVistor(vistor, ddim);
-  //  return os;
-  //}
 
 #ifdef PADDLE_MOBILE_DEBUG
-inline Print &operator<<(Print &printer, const DDim &ddim) {
+Print &operator<<(Print &printer, const DDim &ddim) {
   for (int j = 0; j < ddim.size(); ++j) {
     printer << ddim[j] << " ";
   }
diff --git a/src/framework/ddim.h b/src/framework/ddim.h
index 01317c583fe89f2b5234ce36248c9ed529aa2a33..c1d917dff612de3a42168c47d0bacd3ac7bdd3ad 100644
--- a/src/framework/ddim.h
+++ b/src/framework/ddim.h
@@ -147,5 +147,9 @@ DDim flatten_to_1d(const DDim &src);
 DDim stride(const DDim &ddim);
 
 DDim stride_numel(const DDim &ddim);
+
+#ifdef PADDLE_MOBILE_DEBUG
+Print &operator<<(Print &printer, const DDim &ddim);
+#endif
 }  // namespace framework
 }  // namespace paddle_mobile
diff --git a/src/framework/scope.cpp b/src/framework/scope.cpp
index 664499d7e635c75ecc277bfc708dda908a25b170..2f7ff247b846f0a5f3e59c5c2f317a59598fc643 100644
--- a/src/framework/scope.cpp
+++ b/src/framework/scope.cpp
@@ -22,7 +22,6 @@ namespace paddle_mobile {
 namespace framework {
 
 Scope &Scope::NewScope() const {
-  std::unique_lock<std::mutex> lock(mutex_);
   kids_.push_back(new Scope(this));
   return *kids_.back();
 }
@@ -72,7 +71,6 @@ std::vector<std::string> Scope::LocalVarNames() const {
 }
 
 void Scope::DeleteScope(Scope *scope) const {
-  std::unique_lock<std::mutex> lock(mutex_);
   auto it = std::find(kids_.begin(), kids_.end(), scope);
   kids_.erase(it);
   delete scope;
diff --git a/src/framework/scope.h b/src/framework/scope.h
index 27702b88c0c188957b46496dcc4a548a54355c14..d714f61af3bd443c09fcef7aacee2416b90b5e02 100644
--- a/src/framework/scope.h
+++ b/src/framework/scope.h
@@ -15,7 +15,6 @@ limitations under the License. */
 #pragma once
 
 #include <list>
-#include <mutex>
 #include <unordered_map>
 #include "variable.h"
 
@@ -70,8 +69,6 @@ class Scope {
   mutable std::unordered_map<std::string, Variable *> vars_;
   mutable std::list<Scope *> kids_;
   Scope const *parent_{nullptr};
-
-  mutable std::mutex mutex_;
 };
 }  // namespace framework
 }  // namespace paddle_mobile
diff --git a/src/framework/tensor.h b/src/framework/tensor.h
index 674edd67733ef8d0520d28f5c131e9da6746ad17..a22d0ba0e17ab1c9e098a024eee984e817317f2a 100644
--- a/src/framework/tensor.h
+++ b/src/framework/tensor.h
@@ -14,13 +14,13 @@ limitations under the License. */
 
 #pragma once
 
-#include <common/enforce.h>
 #include <cstdint>
 #include <cstring>
 #include <memory>
 #include <type_traits>
 #include <typeindex>
 #include <vector>
+#include "common/enforce.h"
 
 #include "framework/data_layout.h"
 #include "framework/ddim.h"
diff --git a/src/operators/op_param.h b/src/operators/op_param.h
index 22890c4453d8a91b21bc7848a87d8159be804d90..75f6f5ee2215bd5785c791ab8b1b99adf6fa98ae 100644
--- a/src/operators/op_param.h
+++ b/src/operators/op_param.h
@@ -167,8 +167,6 @@ class OpParam {
                         const Scope &scope) {
     auto var_vec = var_map.at(key);
     if (!var_vec.empty()) {
-      //      std::cout << " get var value -- " << var_vec[0] <<
-      //      std::endl;
       auto var = scope.FindVar(var_vec[0]);
       return var->GetMutable<T>();
     } else {
diff --git a/tools/build.sh b/tools/build.sh
index 6a0b7b57929352dce3a26a1f3bd9be6e9719d911..aa59bd3d2834fc83db7bed24e7ee4ac7ea132294 100755
--- a/tools/build.sh
+++ b/tools/build.sh
@@ -46,7 +46,7 @@ build_for_android() {
     if [ "${PLATFORM}" = "arm-v7a" ]; then
         ABI="armeabi-v7a with NEON"
         ARM_PLATFORM="V7"
-        CXX_FLAGS="-O3 -std=c++11 -s -march=armv7-a -mfpu=neon -mfloat-abi=softfp -pie -fPIE -w -Wno-error=format-security -fno-exceptions"
+        CXX_FLAGS="-O3 -std=c++11 -s -march=armv7-a -mfpu=neon -mfloat-abi=softfp -pie -fPIE -w -Wno-error=format-security"
     elif [ "${PLATFORM}" = "arm-v8a" ]; then
         ABI="arm64-v8a"
         ARM_PLATFORM="V8"