NDK 编译protoc buf lite心得

首先感谢 http://blog.sina.com.cn/s/blog_632dcf7501011us2.html 和 http://blog.sina.com.cn/s/blog_632dcf7501012bo0.html 给予了我很大的帮助。说说自己在编译过程中遇到的一些问题以及处理方法。

我的编译环境为 windows8 + NDK r8e, protoc buf 版本为2.5.0。

首先将protoc buf 目录里的\protobuf-2.5.0\src\google目录下的所有文件拷贝到jni目录下。目录结构图如下

然后将protobuf-2.5.0\vsprojects目录下的config.h文件拷贝到jni/google/protobuf/目录下。

配置android.mk，其详细内容如下

# Copyright (C) 2009 The Android Open Source Project
#
# 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.
#
LOCAL_PATH:= $(call my-dir)

include $(CLEAR_VARS)

LOCAL_CPPFLAGS += -frtti

LOCAL_MODULE    := libnative

LOCAL_CPP_EXTENSION := .cc .cpp

#LOCAL_CPPFLAGS += -fexceptions
#LOCAL_CFLAGS    := -Werror
LOCAL_SRC_FILES := 	NativeEntry.cpp \
										google/protobuf/io/coded_stream.cc \
										google/protobuf/stubs/common.cc \
										google/protobuf/extension_set.cc \
										google/protobuf/message_lite.cc \
										google/protobuf/stubs/once.cc \
										google/protobuf/repeated_field.cc \
										google/protobuf/stubs/stringprintf.cc \
										google/protobuf/wire_format_lite.cc \
										google/protobuf/io/zero_copy_stream.cc \
										google/protobuf/io/zero_copy_stream_impl_lite.cc \

			
LOCAL_C_INCLUDES += . \
										$(LOCAL_PATH)/google \
										$(LOCAL_PATH)/google/protobuf \
			
LOCAL_LDLIBS    := -llog -ldl  -lgcc -pthread \
								D:/progrome_tools/adt-bundle-windows-x86_64/android-ndk-r8e-windows-x86_64/android-ndk-r8e/sources/cxx-stl/gnu-libstdc++/4.7/libs/armeabi/libgnustl_static.a

ifndef NDK_ROOT
include external/stlport/libstlport.mk
endif

include $(BUILD_SHARED_LIBRARY)

接下来配置Application.mk

# The ARMv7 is significanly faster due to the use of the hardware FPU
APP_ABI := armeabi armeabi-v7a
APP_PLATFORM := android-7
APP_STL := gnustl_static

然后修改config.h,注意网上有人建议不用修改config.h文件而是把backward_warning.h文件include进来.如果这样在编译的时候还是警告该文件以后的版本将不再使用。所以这种方式还是不可取，还是老老实实的修改config.h文件比较好。其config.h的文件内容如下

/* protobuf config.h for MSVC.  On other platforms, this is generated
 * automatically by autoheader / autoconf / configure. */

/* the location of <hash_map> */
//#define HASH_MAP_H <hash_map>

/* the namespace of hash_map/hash_set */
// Apparently Microsoft decided to move hash_map *back* to the std namespace
// in MSVC 2010:
//   http://blogs.msdn.com/vcblog/archive/2009/05/25/stl-breaking-changes-in-visual-studio-2010-beta-1.aspx
// TODO(kenton):  Use unordered_map instead, which is available in MSVC 2010.
#if _MSC_VER < 1310 || _MSC_VER >= 1600
#define HASH_NAMESPACE std
#else
#define HASH_NAMESPACE stdext
#endif

/* the location of <hash_set> */
#define HASH_SET_H <ext/hash_set>
#define HASH_MAP_H <ext/hash_map>
//#define HASH_NAMESPACE _gnu_cxx

/* define if the compiler has hash_map */
//#define HAVE_HASH_MAP 1

/* define if the compiler has hash_set */
//#define HAVE_HASH_SET 1

#define HAVE_PTHREAD 1

/* define if you want to use zlib.  See readme.txt for additional
 * requirements. */
// #define HAVE_ZLIB 1

接下就是在eclipse下配置ndk编译环境不需要cywin，具体方法请参见 http://blog.csdn.net/maojudong/article/details/7261986