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

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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=1adb push ./libs/armeabi/7zr /data/app/adb push ./libs/armeabi/gdbserver /data/app/adb shell chmod 777 /data/app/7zradb shell chmod 777 /data/app/gdbserveradb forward tcp:1234: tcp:1234adb 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

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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

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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

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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

总结

以上是生活随笔为你收集整理的【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 )的全部内容，希望文章能够帮你解决所遇到的问题。

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