原文作者:@玄冬Wong
以下构建配置在protobuf 2.6.1测试通过,最新的3.x没试过。
另外,这里构建的是移动平台版本protobuf-lite,不是protobuf。
1,cygwin安装需要的lib库
cygwin中编译protobuf是比较麻烦的,因为很多必要的库都没安装,我安装一遍下来,发现一下lib是必须安装的,否则安装不成功:
wget
bzip2
curl
autoconf
automake
libtool
make
gcc
这些库在cygwin的安装选项中勾选,如果搜索出来的结果有多个,建议一定勾上不带版本后缀的名字。比如你在搜索automake,会出现多个结果:automake、automake-1.8、automake-1.9等等,这里建议一定勾上不带版本后缀automake。
这里给一个配置好的cygwin,上述lib已全部装好,解压后可以直接使用。
https://yunpan.cn/cqnEtCkDtDPkv 访问密码 e0f1
如果是在linux上编译,那么只需要按照这篇文章上的步骤安装lib即可:
http://bafeimao.net/2015/11/14/compile-protobuf-on-mac/
2,获取config.h
上述cygwin安装好以后,切换到protobuf的源码目录下,执行命令:
./autogen.sh
然后执行:
./configure
如果没有错误,那么根目录下会生成一个C++头文件:config.h。这个文件是后面编译protobuf时需要的头文件。如果没有这个config.h文件,那么后面编译时protobuf时会报错:error "No suitable threading library available."
这里附上2.6.1的config.h
/* config.h. Generated from config.h.in by configure. */ /* config.h.in. Generated from configure.ac by autoheader. */ /* the name of <hash_map> */ #define HASH_MAP_CLASS unordered_map /* the location of <unordered_map> or <hash_map> */ #define HASH_MAP_H <tr1/unordered_map> /* the namespace of hash_map/hash_set */ #define HASH_NAMESPACE std::tr1 /* the name of <hash_set> */ #define HASH_SET_CLASS unordered_set /* the location of <unordered_set> or <hash_set> */ #define HASH_SET_H <tr1/unordered_set> /* Define to 1 if you have the <dlfcn.h> header file. */ #define HAVE_DLFCN_H 1 /* Define to 1 if you have the <fcntl.h> header file. */ #define HAVE_FCNTL_H 1 /* Define to 1 if you have the `ftruncate' function. */ #define HAVE_FTRUNCATE 1 /* 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 to 1 if you have the <inttypes.h> header file. */ #define HAVE_INTTYPES_H 1 /* Define to 1 if you have the <limits.h> header file. */ #define HAVE_LIMITS_H 1 /* Define to 1 if you have the <memory.h> header file. */ #define HAVE_MEMORY_H 1 /* Define to 1 if you have the `memset' function. */ #define HAVE_MEMSET 1 /* Define to 1 if you have the `mkdir' function. */ #define HAVE_MKDIR 1 /* Define if you have POSIX threads libraries and header files. */ #define HAVE_PTHREAD 1 /* Define to 1 if you have the <stdint.h> header file. */ #define HAVE_STDINT_H 1 /* Define to 1 if you have the <stdlib.h> header file. */ #define HAVE_STDLIB_H 1 /* Define to 1 if you have the `strchr' function. */ #define HAVE_STRCHR 1 /* Define to 1 if you have the `strerror' function. */ #define HAVE_STRERROR 1 /* Define to 1 if you have the <strings.h> header file. */ #define HAVE_STRINGS_H 1 /* Define to 1 if you have the <string.h> header file. */ #define HAVE_STRING_H 1 /* Define to 1 if you have the `strtol' function. */ #define HAVE_STRTOL 1 /* Define to 1 if you have the <sys/stat.h> header file. */ #define HAVE_SYS_STAT_H 1 /* Define to 1 if you have the <sys/types.h> header file. */ #define HAVE_SYS_TYPES_H 1 /* Define to 1 if you have the <unistd.h> header file. */ #define HAVE_UNISTD_H 1 /* Enable classes using zlib compression. */ /* #undef HAVE_ZLIB */ /* Define to the sub-directory where libtool stores uninstalled libraries. */ #define LT_OBJDIR ".libs/" /* Name of package */ #define PACKAGE "protobuf" /* Define to the address where bug reports for this package should be sent. */ #define PACKAGE_BUGREPORT "[email protected]" /* Define to the full name of this package. */ #define PACKAGE_NAME "Protocol Buffers" /* Define to the full name and version of this package. */ #define PACKAGE_STRING "Protocol Buffers 2.6.1" /* Define to the one symbol short name of this package. */ #define PACKAGE_TARNAME "protobuf" /* Define to the home page for this package. */ #define PACKAGE_URL "" /* Define to the version of this package. */ #define PACKAGE_VERSION "2.6.1" /* Define to necessary symbol if this constant uses a non-standard name on your system. */ /* #undef PTHREAD_CREATE_JOINABLE */ /* 64bit enabled */ /* #undef SOLARIS_64BIT_ENABLED */ /* Define to 1 if you have the ANSI C header files. */ #define STDC_HEADERS 1 /* Enable extensions on AIX 3, Interix. */ #ifndef _ALL_SOURCE # define _ALL_SOURCE 1 #endif /* Enable GNU extensions on systems that have them. */ #ifndef _GNU_SOURCE # define _GNU_SOURCE 1 #endif /* Enable threading extensions on Solaris. */ #ifndef _POSIX_PTHREAD_SEMANTICS # define _POSIX_PTHREAD_SEMANTICS 1 #endif /* Enable extensions on HP NonStop. */ #ifndef _TANDEM_SOURCE # define _TANDEM_SOURCE 1 #endif /* Enable general extensions on Solaris. */ #ifndef __EXTENSIONS__ # define __EXTENSIONS__ 1 #endif /* Version number of package */ #define VERSION "2.6.1" /* Define to 1 if on MINIX. */ /* #undef _MINIX */ /* Define to 2 if the system does not provide POSIX.1 features except with this defined. */ /* #undef _POSIX_1_SOURCE */ /* Define to 1 if you need to in order for `stat' and other things to work. */ /* #undef _POSIX_SOURCE */
3,编写Android.mk
新建Application.mk和Android.mk两个配置文件,配置文件内容如下:
Application.mk
APP_STL := gnustl_static APP_ABI := armeabi-v7a armeabi APP_PROJECT_PATH := ./ APP_BUILD_SCRIPT := ./jni/Android.mk
Android.mk
# 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) CC_LITE_SRC_FILES := \ google/protobuf/stubs/common.cc \ google/protobuf/stubs/once.cc \ google/protobuf/extension_set.cc \ google/protobuf/generated_message_util.cc \ google/protobuf/message_lite.cc \ google/protobuf/repeated_field.cc \ google/protobuf/wire_format_lite.cc \ google/protobuf/io/coded_stream.cc \ google/protobuf/io/zero_copy_stream.cc \ google/protobuf/io/zero_copy_stream_impl_lite.cc COMPILER_SRC_FILES := \ google/protobuf/descriptor.cc \ google/protobuf/descriptor.pb.cc \ google/protobuf/descriptor_database.cc \ google/protobuf/dynamic_message.cc \ google/protobuf/extension_set.cc \ google/protobuf/extension_set_heavy.cc \ google/protobuf/generated_message_reflection.cc \ google/protobuf/generated_message_util.cc \ google/protobuf/message.cc \ google/protobuf/message_lite.cc \ google/protobuf/reflection_ops.cc \ google/protobuf/repeated_field.cc \ google/protobuf/service.cc \ google/protobuf/text_format.cc \ google/protobuf/unknown_field_set.cc \ google/protobuf/wire_format.cc \ google/protobuf/wire_format_lite.cc \ google/protobuf/compiler/code_generator.cc \ google/protobuf/compiler/command_line_interface.cc \ google/protobuf/compiler/importer.cc \ google/protobuf/compiler/main.cc \ google/protobuf/compiler/parser.cc \ google/protobuf/compiler/plugin.cc \ google/protobuf/compiler/plugin.pb.cc \ google/protobuf/compiler/subprocess.cc \ google/protobuf/compiler/zip_writer.cc \ google/protobuf/compiler/cpp/cpp_enum.cc \ google/protobuf/compiler/cpp/cpp_enum_field.cc \ google/protobuf/compiler/cpp/cpp_extension.cc \ google/protobuf/compiler/cpp/cpp_field.cc \ google/protobuf/compiler/cpp/cpp_file.cc \ google/protobuf/compiler/cpp/cpp_generator.cc \ google/protobuf/compiler/cpp/cpp_helpers.cc \ google/protobuf/compiler/cpp/cpp_message.cc \ google/protobuf/compiler/cpp/cpp_message_field.cc \ google/protobuf/compiler/cpp/cpp_primitive_field.cc \ google/protobuf/compiler/cpp/cpp_service.cc \ google/protobuf/compiler/cpp/cpp_string_field.cc \ google/protobuf/compiler/java/java_enum.cc \ google/protobuf/compiler/java/java_enum_field.cc \ google/protobuf/compiler/java/java_extension.cc \ google/protobuf/compiler/java/java_field.cc \ google/protobuf/compiler/java/java_file.cc \ google/protobuf/compiler/java/java_generator.cc \ google/protobuf/compiler/java/java_helpers.cc \ google/protobuf/compiler/java/java_message.cc \ google/protobuf/compiler/java/java_message_field.cc \ google/protobuf/compiler/java/java_primitive_field.cc \ google/protobuf/compiler/java/java_service.cc \ google/protobuf/compiler/javamicro/javamicro_enum.cc \ google/protobuf/compiler/javamicro/javamicro_enum_field.cc \ google/protobuf/compiler/javamicro/javamicro_field.cc \ google/protobuf/compiler/javamicro/javamicro_file.cc \ google/protobuf/compiler/javamicro/javamicro_generator.cc \ google/protobuf/compiler/javamicro/javamicro_helpers.cc \ google/protobuf/compiler/javamicro/javamicro_message.cc \ google/protobuf/compiler/javamicro/javamicro_message_field.cc \ google/protobuf/compiler/javamicro/javamicro_primitive_field.cc \ google/protobuf/compiler/python/python_generator.cc \ google/protobuf/io/coded_stream.cc \ google/protobuf/io/gzip_stream.cc \ google/protobuf/io/printer.cc \ google/protobuf/io/tokenizer.cc \ google/protobuf/io/zero_copy_stream.cc \ google/protobuf/io/zero_copy_stream_impl.cc \ google/protobuf/io/zero_copy_stream_impl_lite.cc \ google/protobuf/stubs/common.cc \ google/protobuf/stubs/once.cc \ google/protobuf/stubs/structurally_valid.cc \ google/protobuf/stubs/strutil.cc \ google/protobuf/stubs/substitute.cc # C++ full library # ======================================================= #include $(CLEAR_VARS) LOCAL_MODULE := libprotobuf-lite LOCAL_MODULE_TAGS := optional LOCAL_CPP_EXTENSION := .cc LOCAL_SRC_FILES += \ $(CC_LITE_SRC_FILES) #\ #google/protobuf/stubs/strutil.cc \ #google/protobuf/stubs/substitute.cc \ #google/protobuf/stubs/structurally_valid.cc \ #google/protobuf/descriptor.cc \ #google/protobuf/descriptor.pb.cc \ #google/protobuf/descriptor_database.cc \ #google/protobuf/dynamic_message.cc \ #google/protobuf/extension_set_heavy.cc \ #google/protobuf/generated_message_reflection.cc \ #google/protobuf/message.cc \ #google/protobuf/reflection_ops.cc \ #google/protobuf/service.cc \ #google/protobuf/text_format.cc \ #google/protobuf/unknown_field_set.cc \ #google/protobuf/wire_format.cc \ #google/protobuf/io/gzip_stream.cc \ #google/protobuf/io/printer.cc \ #google/protobuf/io/tokenizer.cc \ #google/protobuf/io/zero_copy_stream_impl.cc \ #google/protobuf/compiler/importer.cc \ #google/protobuf/compiler/parser.cc LOCAL_C_INCLUDES := \ $(LOCAL_PATH)/src LOCAL_C_INCLUDES := \ $(LOCAL_PATH)/android \ bionic \ $(LOCAL_PATH)/src \ $(JNI_H_INCLUDE) LOCAL_SHARED_LIBRARIES := \ libz libcutils libutils LOCAL_LDLIBS := -lz # stlport conflicts with the host stl library #ifneq ($(TARGET_SIMULATOR),true) #LOCAL_C_INCLUDES += external/stlport/stlport #LOCAL_SHARED_LIBRARIES += libstlport #endif # Define the header files to be copied #LOCAL_COPY_HEADERS := \ # google/protobuf/stubs/once.h \ # google/protobuf/stubs/common.h \ # google/protobuf/io/coded_stream.h \ # google/protobuf/generated_message_util.h \ # google/protobuf/repeated_field.h \ # google/protobuf/extension_set.h \ # google/protobuf/wire_format_lite_inl.h # #LOCAL_COPY_HEADERS_TO := $(LOCAL_MODULE) LOCAL_CFLAGS := -march=armv7-a -mfloat-abi=softfp -DGOOGLE_PROTOBUF_NO_RTTI #-DGOOGLE_PROTOBUF_NO_RTTI include $(BUILD_STATIC_LIBRARY)
Android.mk的配置参考自:
http://stackoverflow.com/questions/7144008/how-to-build-protocol-buffer-by-android-ndk
4,设置目录结构
新建一个文件夹,比如:ProtobufBuild,然后在建一个子目录,名字叫jni(这个名字不能任意,必须叫jni)。将Application.mk和Android.mk两个文件放在ProtobufBuild/jni/目录下,并且将protobuf的源码拷贝到ProtobufBuild/jni/目录下,并且将上面生成的config.h文件也拷贝到这个目录下,最终的文件目录结构是这样的:
ProtobufBuild
|——jni
|——Application.mk
|——Android.mk
|——config.h
|——google(protobuf源码下载解压后,将protobuf/src/google拷贝过来的)
5,NDK命令行编译
将android-ndk的根目录配置到系统的环境变量中,然后将打开cmd,切换目录到到上面的新建的文件夹ProtobufBuild目录下,然后执行:
ndk-build
无需参数,直接回车即可,最终生成的protobuf静态库文件出现在:
ProtobufBuild/obj/local/armeabi-v7a/libprotobuf-lite.a
注:armeabi-v7a是Application.mk中配置的CPU型号,这个配置怎么用具体不清楚,貌似当年android 2.2和2.3时代,这个cpu型号是最通用的吧,具体自己google。