Android 安装包优化使用 lib7zr.so 动态库处理压缩文件 ( 修改 7zr 交叉编译脚本 Android.mk | 交叉编译 lib7zr.so 动态库 )

Posted 2021-05-18 韩曙亮

文章目录

• 一、修改 7zr 交叉编译脚本 Android.mk
• 二、完整的 7zr 交叉编译脚本 Android.mk
• 三、交叉编译 lib7zr.so 动态库
• 四、参考资料

一、修改 7zr 交叉编译脚本 android.mk

---

之前的博客 【Android 安装包优化】p7zip 源码交叉编译 Android 平台可执行程序 ( 下载 p7zip 源码 | 交叉编译 Android 中使用 7z 可执行程序 ) 中 , 下载并编译了 p7zip 开源项目源码 , 交叉编译出了可以在 Android 平台执行的可执行文件 ;

D:\\develop\\7zip\\p7zip_16.02\\CPP\\ANDROID\\7zr 目录下是 7zr 项目的构建脚本 Android.mk 和 Application.mk , 主要使用该构建脚本交叉编译出

• 可执行文件 7zr
• 动态库 lib7zr.so ;

进入 7zr 目录下 , 有一个 jni 目录 和 makefile 文件 ,

jni 目录中是 Android.mk 和 Application.mk 两个构建脚本 , 可以使用 ndk-build 进行编译 ;

打开该 makefile 文件 , 该文件最后几行代码给出了相关操作方法 ;

# FIXME
debug:
	cd jni ; ndk-build NDK_DEBUG=1
	adb push ./libs/armeabi/7zr /data/app/
	adb push ./libs/armeabi/gdbserver /data/app/
	adb shell chmod 777 /data/app/7zr
	adb shell chmod 777 /data/app/gdbserver
	adb forward tcp:1234: tcp:1234
	adb shell  /data/app/gdbserver :1234 /data/app/7zr

进入 D:\\develop\\7zip\\p7zip_16.02\\CPP\\ANDROID\\7zr\\jni 目录 , 执行 ndk-build 命令 , 进行交叉编译 ;

修改 Application.mk 构建脚本 :

APP_ABI := armeabi-v7a arm64-v8a x86 x86_64
APP_PLATFORM := android-8

注释可执行文件的编译选项 : -fPIE 指的是生成与地址无关的可执行文件 , 该选项只能应用于可执行文件 , 不能用于动态库编译 ;

# Needed since ANDROID 5, these programs run on android-16 (Android 4.1+)
# -fPIE 指的是生成与地址无关的可执行文件 , 该选项只能应用于可执行文件 ,
# 不能用于动态库编译 
# 如果编译动态库 , 需要注释掉下面两个配置
# 如果编译可执行文件 , 可以保留下面两个配置 
#LOCAL_CFLAGS += -fPIE
#LOCAL_LDFLAGS += -fPIE -pie

设置 Android.mk 构建脚本的编译结果 :

include $(BUILD_EXECUTABLE)

• include $(BUILD_EXECUTABLE) 配置表示生成可执行文件 ;

• include $(BUILD_SHARED_LIBRARY) 配置表示生成 .so 动态库 ;

• include $(BUILD_STATIC_LIBRARY) 配置表示生成 .a 静态库 ;

二、完整的 7zr 交叉编译脚本 Android.mk

---

修改完成的构建脚本 :

# 
# build 7zr for armeabi and armeabi-v7a CPU
#
# WARNING : file generated by generate.py
#


LOCAL_PATH := $(call my-dir)

include $(CLEAR_VARS)

# 编译模块 
# 如果编译可执行文件, 编译结果是 7zr
# 如果编译动态库, 编译结果是 lib7zr.so
LOCAL_MODULE := 7zr

# 设置编译器参数 
# -I 指定头文件引入目录 , 会引入后面目录中所有的 .h 头文件 
LOCAL_CFLAGS := -DANDROID_NDK  -fexceptions \\
	-DNDEBUG -D_REENTRANT -DENV_UNIX \\
	-DBREAK_HANDLER -D_NO_CRYPTO \\
	-DUNICODE -D_UNICODE -DUNIX_USE_WIN_FILE \\
	-I../../../7zip/Archive \\
	-I../../../7zip/Archive/7z \\
	-I../../../7zip/Archive/BZip2 \\
	-I../../../7zip/Archive/Common \\
	-I../../../7zip/Archive/GZip \\
	-I../../../7zip/Archive/Cab \\
	-I../../../7zip/Archive/Lzma \\
	-I../../../7zip/Archive/Tar \\
	-I../../../7zip/Archive/Zip \\
	-I../../../7zip/Archive/Split \\
	-I../../../7zip/Archive/Z \\
	-I../../../7zip/Compress \\
       	-I../../../7zip/Crypto \\
	-I../../../7zip/UI/Console \\
	-I../../../7zip/UI/Common \\
	-I../../../Windows \\
	-I../../../Common \\
	-I../../../7zip/Common \\
	-I../../../../C \\
-I../../../myWindows \\
-I../../../ \\
-I../../../include_windows

# 源文件引入 
LOCAL_SRC_FILES := \\
  ../../../../CPP/7zip/Archive/7z/7zCompressionMode.cpp \\
  ../../../../CPP/7zip/Archive/7z/7zDecode.cpp \\
  ../../../../CPP/7zip/Archive/7z/7zEncode.cpp \\
  ../../../../CPP/7zip/Archive/7z/7zExtract.cpp \\
  ../../../../CPP/7zip/Archive/7z/7zFolderInStream.cpp \\
  ../../../../CPP/7zip/Archive/7z/7zHandler.cpp \\
  ../../../../CPP/7zip/Archive/7z/7zHandlerOut.cpp \\
  ../../../../CPP/7zip/Archive/7z/7zHeader.cpp \\
  ../../../../CPP/7zip/Archive/7z/7zIn.cpp \\
  ../../../../CPP/7zip/Archive/7z/7zOut.cpp \\
  ../../../../CPP/7zip/Archive/7z/7zProperties.cpp \\
  ../../../../CPP/7zip/Archive/7z/7zRegister.cpp \\
  ../../../../CPP/7zip/Archive/7z/7zSpecStream.cpp \\
  ../../../../CPP/7zip/Archive/7z/7zUpdate.cpp \\
  ../../../../CPP/7zip/Archive/Common/CoderMixer2.cpp \\
  ../../../../CPP/7zip/Archive/Common/DummyOutStream.cpp \\
  ../../../../CPP/7zip/Archive/Common/HandlerOut.cpp \\
  ../../../../CPP/7zip/Archive/Common/InStreamWithCRC.cpp \\
  ../../../../CPP/7zip/Archive/Common/ItemNameUtils.cpp \\
  ../../../../CPP/7zip/Archive/Common/MultiStream.cpp \\
  ../../../../CPP/7zip/Archive/Common/OutStreamWithCRC.cpp \\
  ../../../../CPP/7zip/Archive/Common/ParseProperties.cpp \\
  ../../../../CPP/7zip/Archive/LzmaHandler.cpp \\
  ../../../../CPP/7zip/Archive/SplitHandler.cpp \\
  ../../../../CPP/7zip/Archive/XzHandler.cpp \\
  ../../../../CPP/7zip/Common/CWrappers.cpp \\
  ../../../../CPP/7zip/Common/CreateCoder.cpp \\
  ../../../../CPP/7zip/Common/FilePathAutoRename.cpp \\
  ../../../../CPP/7zip/Common/FileStreams.cpp \\
  ../../../../CPP/7zip/Common/FilterCoder.cpp \\
  ../../../../CPP/7zip/Common/InBuffer.cpp \\
  ../../../../CPP/7zip/Common/InOutTempBuffer.cpp \\
  ../../../../CPP/7zip/Common/LimitedStreams.cpp \\
  ../../../../CPP/7zip/Common/MethodId.cpp \\
  ../../../../CPP/7zip/Common/MethodProps.cpp \\
  ../../../../CPP/7zip/Common/OffsetStream.cpp \\
  ../../../../CPP/7zip/Common/OutBuffer.cpp \\
  ../../../../CPP/7zip/Common/ProgressUtils.cpp \\
  ../../../../CPP/7zip/Common/PropId.cpp \\
  ../../../../CPP/7zip/Common/StreamBinder.cpp \\
  ../../../../CPP/7zip/Common/StreamObjects.cpp \\
  ../../../../CPP/7zip/Common/StreamUtils.cpp \\
  ../../../../CPP/7zip/Common/UniqBlocks.cpp \\
  ../../../../CPP/7zip/Common/VirtThread.cpp \\
  ../../../../CPP/7zip/Compress/Bcj2Coder.cpp \\
  ../../../../CPP/7zip/Compress/Bcj2Register.cpp \\
  ../../../../CPP/7zip/Compress/BcjCoder.cpp \\
  ../../../../CPP/7zip/Compress/BcjRegister.cpp \\
  ../../../../CPP/7zip/Compress/BranchMisc.cpp \\
  ../../../../CPP/7zip/Compress/BranchRegister.cpp \\
  ../../../../CPP/7zip/Compress/ByteSwap.cpp \\
  ../../../../CPP/7zip/Compress/CopyCoder.cpp \\
  ../../../../CPP/7zip/Compress/CopyRegister.cpp \\
  ../../../../CPP/7zip/Compress/DeltaFilter.cpp \\
  ../../../../CPP/7zip/Compress/Lzma2Decoder.cpp \\
  ../../../../CPP/7zip/Compress/Lzma2Encoder.cpp \\
  ../../../../CPP/7zip/Compress/Lzma2Register.cpp \\
  ../../../../CPP/7zip/Compress/LzmaDecoder.cpp \\
  ../../../../CPP/7zip/Compress/LzmaEncoder.cpp \\
  ../../../../CPP/7zip/Compress/LzmaRegister.cpp \\
  ../../../../CPP/7zip/UI/Common/ArchiveCommandLine.cpp \\
  ../../../../CPP/7zip/UI/Common/ArchiveExtractCallback.cpp \\
  ../../../../CPP/7zip/UI/Common/ArchiveOpenCallback.cpp \\
  ../../../../CPP/7zip/UI/Common/Bench.cpp \\
  ../../../../CPP/7zip/UI/Common/DefaultName.cpp \\
  ../../../../CPP/7zip/UI/Common/EnumDirItems.cpp \\
  ../../../../CPP/7zip/UI/Common/Extract.cpp \\
  ../../../../CPP/7zip/UI/Common/ExtractingFilePath.cpp \\
  ../../../../CPP/7zip/UI/Common/HashCalc.cpp \\
  ../../../../CPP/7zip/UI/Common/LoadCodecs.cpp \\
  ../../../../CPP/7zip/UI/Common/OpenArchive.cpp \\
  ../../../../CPP/7zip/UI/Common/PropIDUtils.cpp \\
  ../../../../CPP/7zip/UI/Common/SetProperties.cpp \\
  ../../../../CPP/7zip/UI/Common/SortUtils.cpp \\
  ../../../../CPP/7zip/UI/Common/TempFiles.cpp \\
  ../../../../CPP/7zip/UI/Common/Update.cpp \\
  ../../../../CPP/7zip/UI/Common/UpdateAction.cpp \\
  ../../../../CPP/7zip/UI/Common/UpdateCallback.cpp \\
  ../../../../CPP/7zip/UI/Common/UpdatePair.cpp \\
  ../../../../CPP/7zip/UI/Common/UpdateProduce.cpp \\
  ../../../../CPP/7zip/UI/Console/BenchCon.cpp \\
  ../../../../CPP/7zip/UI/Console/ConsoleClose.cpp \\
  ../../../../CPP/7zip/UI/Console/ExtractCallbackConsole.cpp \\
  ../../../../CPP/7zip/UI/Console/HashCon.cpp \\
  ../../../../CPP/7zip/UI/Console/List.cpp \\
  ../../../../CPP/7zip/UI/Console/Main.cpp \\
  ../../../../CPP/7zip/UI/Console/MainAr.cpp \\
  ../../../../CPP/7zip/UI/Console/OpenCallbackConsole.cpp \\
  ../../../../CPP/7zip/UI/Console/PercentPrinter.cpp \\
  ../../../../CPP/7zip/UI/Console/UpdateCallbackConsole.cpp \\
  ../../../../CPP/7zip/UI/Console/UserInputUtils.cpp \\
  ../../../../CPP/Common/CRC.cpp \\
  ../../../../CPP/Common/CommandLineParser.cpp \\
  ../../../../CPP/Common/CrcReg.cpp \\
  ../../../../CPP/Common/IntToString.cpp \\
  ../../../../CPP/Common/ListFileUtils.cpp \\
  ../../../../CPP/Common/MyString.cpp \\
  ../../../../CPP/Common/MyVector.cpp \\
  ../../../../CPP/Common/MyWindows.cpp \\
  ../../../../CPP/Common/NewHandler.cpp \\
  ../../../../CPP/Common/Sha256Reg.cpp \\
  ../../../../CPP/Common/StdInStream.cpp \\
  ../../../../CPP/Common/StdOutStream.cpp \\
  ../../../../CPP/Common/StringConvert.cpp \\
  ../../../../CPP/Common/StringToInt.cpp \\
  ../../../../CPP/Common/UTFConvert.cpp \\
  ../../../../CPP/Common/Wildcard.cpp \\
  ../../../../CPP/Common/XzCrc64Reg.cpp \\
  ../../../../CPP/Windows/ErrorMsg.cpp \\
  ../../../../CPP/Windows/FileDir.cpp \\
  ../../../../CPP/Windows/FileFind.cpp \\
  ../../../../CPP/Windows/FileIO.cpp \\
  ../../../../CPP/Windows/FileName.cpp \\
  ../../../../CPP/Windows/PropVariant.cpp \\
  ../../../../CPP/Windows/PropVariantConv.cpp \\
  ../../../../CPP/Windows/Synchronization.cpp \\
  ../../../../CPP/Windows/System.cpp \\
  ../../../../CPP/Windows/TimeUtils.cpp \\
  ../../../../CPP/myWindows/myAddExeFlag.cpp \\
  ../../../../CPP/myWindows/mySplitCommandLine.cpp \\
  ../../../../CPP/myWindows/wine_date_and_time.cpp \\
  ../../../../C/7zCrc.c \\
  ../../../../C/7zCrcOpt.c \\
  ../../../../C/7zStream.c \\
  ../../../../C/Alloc.c \\
  ../../../../C/Bcj2.c \\
  ../../../../C/Bcj2Enc.c \\
  ../../../../C/Bra.c \\
  ../../../../C/Bra86.c \\
  ../../../../C/BraIA64.c \\
  ../../../../C/CpuArch.c \\
  ../../../../C/Delta.c \\
  ../../../../C/LzFind.c \\
  ../../../../C/LzFindMt.c \\
  ../../../../C/Lzma2Dec.c \\
  ../../../../C/Lzma2Enc.c \\
  ../../../../C/LzmaDec.c \\
  ../../../../C/LzmaEnc.c \\
  ../../../../C/MtCoder.c \\
  ../../../../C/Sha256.c \\
  ../../../../C/Threads.c \\
  ../../../../C/Xz.c \\
  ../../../../C/XzCrc64.c \\
  ../../../../C/XzCrc64Opt.c \\
  ../../../../C/XzDec.c \\
  ../../../../C/XzEnc.c \\
  ../../../../C/XzIn.c \\

# Needed since ANDROID 5, these programs run on android-16 (Android 4.1+)
# -fPIE 指的是生成与地址无关的可执行文件 , 该选项只能应用于可执行文件 ,
# 不能用于动态库编译 
# 如果编译动态库 , 需要注释掉下面两个配置
# 如果编译可执行文件 , 可以保留下面两个配置 
#LOCAL_CFLAGS += -fPIE
#LOCAL_LDFLAGS += -fPIE -pie

# include $(BUILD_EXECUTABLE) 配置表示生成可执行文件
# include $(BUILD_SHARED_LIBRARY) 配置表示生成 .so 动态库 
# include $(BUILD_STATIC_LIBRARY) 配置表示生成 .a 静态库
# 此处生成动态库
include $(BUILD_SHARED_LIBRARY)

三、交叉编译 lib7zr.so 动态库

---

使用最低版本的 NDK 进行编译 , 使用高版本 NDK 编译各种报错 ;

使用 16.1.4479499 版本的 NDK 进行编译 :

>D:\\001_Programs\\001_Android\\002_Sdk\\Sdk\\ndk\\16.1.4479499\\ndk-build.cmd

进入 D:\\develop\\7zip\\p7zip_16.02\\CPP\\ANDROID\\7zr\\jni 目录 , 执行如下命令 :

D:\\001_Programs\\001_Android\\002_Sdk\\Sdk\\ndk\\16.1.4479499\\ndk-build.cmd

编译要很长时间 , 输出如下结果后 ,

最终在 D:\\develop\\7zip\\p7zip_16.02\\CPP\\ANDROID\\7zr\\libs\\armeabi-v7a 目录下 , 生成了可执行的 7zr 程序 ;

总共生成了 $4$ 种 CPU 架构的可执行文件 ;

编译过程中其它生成文件如下图 :

编译时遇到的错误 :

• 【错误记录】Android Studio 导入外部 so 动态库报错 ( java.lang.UnsatisfiedLinkError | 指定 APK 打包动态库的 CPU 架构 )
• 【错误记录】p7zip 交叉编译 Android 版本 NDK 报错 ( error: case value evaluates to -2 , which cannot be narrowed )

四、参考资料

---

参考资料 :

• 7-Zip 官网 : https://www.7-zip.org/

Android NDK 编译构建脚本参考文档 :

• ndk-build 脚本 : https://developer.android.google.cn/ndk/guides/ndk-build
• Android.mk 构建脚本 : https://developer.android.google.cn/ndk/guides/android_mk
• Application.mk 构建脚本 : https://developer.android.google.cn/ndk/guides/application_mk

博客资源 : 源码 , 编译后的可执行文件, 在 7zip\\p7zip_16.02\\CPP\\ANDROID\\7zr\\libs\\ 目录下 ;

• 下载地址 : https://download.csdn.net/download/han1202012/18215890
• GitHub 项目源码 : https://github.com/han1202012/7-Zip