Crypto ++ / iOS 64位项目中的未定义符号

时间：2015-02-04 01:12:19

标签： c++ ios xcode cocos2d-x crypto++

我尝试使用github's prebuilt cryptopp构建，但它也不起作用。它会发生如下错误：

  

架构arm64的未定义符号：    ＆＃34; CryptoPP :: BufferedTransformation :: ChannelFlush（std :: string const＆amp;，bool，int，bool）＆＃34;，引自：

 vtable for CryptoPP::SimpleProxyFilter in MYCLASSBBB.o
 vtable for CryptoPP::Bufferless<CryptoPP::Filter> in MYCLASSBBB.o
     

＆＃34; CryptoPP :: Filter :: CopyRangeTo2（CryptoPP :: BufferedTransformation＆amp ;, unsigned long long＆amp ;, unsigned long long，std :: string const＆amp;，bool）const＆＃34;，引自：

 vtable for CryptoPP::Base64Decoder in MYCLASSBBB.o
 vtable for CryptoPP::Unflushable<CryptoPP::Filter> in MYCLASSBBB.o
 vtable for CryptoPP::SimpleProxyFilter in MYCLASSBBB.o
 vtable for CryptoPP::Bufferless<CryptoPP::Filter> in MYCLASSBBB.o
     

＆＃34; CryptoPP :: Filter :: TransferTo2（CryptoPP :: BufferedTransformation＆amp ;, unsigned long long＆amp;，std :: string const＆amp;，bool）＆＃34;，引自：

 vtable for CryptoPP::Base64Decoder in MYCLASSBBB.o
 vtable for CryptoPP::Unflushable<CryptoPP::Filter> in MYCLASSBBB.o
 vtable for CryptoPP::SimpleProxyFilter in MYCLASSBBB.o
 vtable for CryptoPP::Bufferless<CryptoPP::Filter> in MYCLASSBBB.o
     

＆＃34; CryptoPP :: BufferedTransformation :: ChannelPut2（std :: string const＆amp;，unsigned char const *，unsigned long，int，bool）＆＃34;，引自：

 vtable for CryptoPP::Base64Decoder in MYCLASSBBB.o
 vtable for CryptoPP::Unflushable<CryptoPP::Filter> in MYCLASSBBB.o
 vtable for CryptoPP::SimpleProxyFilter in MYCLASSBBB.o
 vtable for CryptoPP::Bufferless<CryptoPP::Filter> in MYCLASSBBB.o
     

＆＃34; CryptoPP :: BufferedTransformation :: ChannelCreatePutSpace（std :: string const＆amp;，unsigned long＆amp;）＆＃34;，引自：

 vtable for CryptoPP::Base64Decoder in MYCLASSBBB.o
 vtable for CryptoPP::Unflushable<CryptoPP::Filter> in MYCLASSBBB.o
 vtable for CryptoPP::SimpleProxyFilter in MYCLASSBBB.o
 vtable for CryptoPP::Bufferless<CryptoPP::Filter> in MYCLASSBBB.o
     

＆＃34; CryptoPP :: BufferedTransformation :: ChannelPutModifiable2（std :: string const＆amp;，unsigned char *，unsigned long，int，bool）＆＃34;，引自：

 vtable for CryptoPP::Base64Decoder in MYCLASSBBB.o
 vtable for CryptoPP::Unflushable<CryptoPP::Filter> in MYCLASSBBB.o
 vtable for CryptoPP::SimpleProxyFilter in MYCLASSBBB.o
 vtable for CryptoPP::Bufferless<CryptoPP::Filter> in MYCLASSBBB.o
     

＆＃34; CryptoPP :: BufferedTransformation :: ChannelMessageSeriesEnd（std :: string const＆amp;，int，bool）＆＃34;，引自：

 vtable for CryptoPP::Base64Decoder in MYCLASSBBB.o
 vtable for CryptoPP::Unflushable<CryptoPP::Filter> in MYCLASSBBB.o
 vtable for CryptoPP::SimpleProxyFilter in MYCLASSBBB.o
 vtable for CryptoPP::Bufferless<CryptoPP::Filter> in MYCLASSBBB.o
     

＆＃34; CryptoPP :: BufferedTransformation :: SetRetrievalChannel（std :: string const＆amp;）＆＃34;，引自：

 vtable for CryptoPP::Base64Decoder in MYCLASSBBB.o
 vtable for CryptoPP::Unflushable<CryptoPP::Filter> in MYCLASSBBB.o
 vtable for CryptoPP::SimpleProxyFilter in MYCLASSBBB.o
 vtable for CryptoPP::Bufferless<CryptoPP::Filter> in MYCLASSBBB.o
     

＆＃34; CryptoPP :: StringSinkTemplate :: StringSinkTemplate（std :: string＆amp;）＆＃34;，引自：

 encryptString(std::string const&) in MYCLASSBBB.o
 decryptString(std::string const&, int) in MYCLASSBBB.o
 MYCLASSAAA::setDeviceId() in MYCLASSAAA.o
 MYCLASSAAA::getSignature() in MYCLASSAAA.o
     

ld：找不到架构arm64的符号   clang：错误：链接器命令失败，退出代码为1（使用-v查看调用）

MYCLASSAAA和MYCLASSBBB都是使用cryptopp lib的所有类。 它使用cryptlib.h，modes.h，filters.h，aes.h，base64.h，md5.h，hex.h。

我甚至尝试自己构建lib，但是我发生了同样的错误。我该怎么办？

我希望你的帮助。感谢。

添加xcode cmd

  

Ld /Users/USERNAME/Library/Developer/Xcode/DerivedData/PROJECT_NAME-aknkujyaqvqjswbhspmawywtyqee/Build/Products/Release-iphoneos/PROJECT_NAME.app/PROJECT_NAME normal arm64       cd / Users / USERNAME / Desktop / Development / Office_Projects / PROJECTROOT / root       export IPHONEOS_DEPLOYMENT_TARGET = 5.1.1       出口PATH =＆＃34; /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin：/Applications/Xcode.app/Contents/Developer/usr/bin：在/ usr / bin中： / bin中：/ usr / sbin目录：/ sbin目录＆＃34;       /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang++ -arch arm64 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS8。 1.sdk -L / Users / USERNAME / Library / Developer / Xcode / DerivedData / PROJECT_NAME-aknkujyaqvqjswbhspmawywtyqee / Build / Products / Release-iphoneos -L / Users / USERNAME / Desktop / Development / Office_Projects / PROJECTROOT / root / PROJECT_NAME / libs / cocos2dx / platform / third_party / ios / libraries -L / Users / USERNAME / Desktop / Development / Office_Projects / PROJECTROOT / root / PROJECT_NAME / libs / EEAF-SDK7.0（i386，armv7，armv7s，arm64）-L / Users / USERNAME / Desktop / Development / Office_Projects / PROJECTROOT / root / PROJECT_NAME / libs / boost_1_57 / ios -L / Users / USERNAME / Desktop / Development / Office_Projects / PROJECTROOT / root / PROJECT_NAME / Classes / cryptopp / lib -LPROJECT_NAME / cocos2dx / platform / third_party / ios / libraries -LPROJECT_NAME / EEAF-SDK7.0（i386，armv7，armv7s，arm64）-F / Users / USERNAME / Library / Developer / Xcode / DerivedData / PROJECT_NAME-aknkujy aqvqjswbhspmawywtyqee / Build / Products / Release-iphoneos -F / Users / USERNAME / Desktop / Development / Office_Projects / PROJECTROOT / root / PROJECT_NAME / libs -filelist / Users / USERNAME / Library / Developer / Xcode / DerivedData / PROJECT_NAME-aknkujyaqvqjswbhspmawywtyqee / Build /中间体/ PROJECT_NAME.build / Release-iphoneos / PROJECT_NAME.build / Objects-normal / arm64 / PROJECT_NAME.LinkFileList -dead_strip -lxml2 -lz -ObjC -lcryptopp -fobjc-link-runtime -miphoneos-version-min = 5.1.1 - lc ++ /Users/USERNAME/Desktop/Development/Office_Projects/PROJECTROOT/root/PROJECT_NAME/libs/boost_1_57/ios/boost.a-framework UIKit -framework CoreTelephony -lEEAF -framework FacebookSDK -framework AddressBook -framework AddressBookUI -framework AudioToolbox -framework AVFoundation -framework CFNetwork -framework CoreGraphics -framework CoreLocation -framework CoreMedia -framework CoreText -framework Foundation-framework ImageIO -framework MediaPlayer -framework MobileCoreServices -framework OpenAL -framework OpenGLES -framework Quart zCore -framework Security -framework SystemConfiguration -lsqlite3.0 -framework StoreKit -lcurl -Xlinker -dependency_info -Xlinker /Users/USERNAME/Library/Developer/Xcode/DerivedData/PROJECT_NAME-aknkujyaqvqjswbhspmawywtyqee/Build/Intermediates/PROJECT_NAME.build/Release-iphoneos /PROJECT_NAME.build/Objects-normal/arm64/PROJECT_NAME_dependency_info.dat -o /Users/USERNAME/Library/Developer/Xcode/DerivedData/PROJECT_NAME-aknkujyaqvqjswbhspmawywtyqee/Build/Products/Release-iphoneos/PROJECT_NAME.app/PROJECT_NAME

和＆＃34; vtable for CRYPTOPP ::〜。o＆＃34;总是发生。通知：

  

注意：缺少vtable通常意味着第一个非内联虚拟成员函数没有定义。

1 个答案:

答案 0 :(得分：0)

Undefined symbols for architecture arm64: "CryptoPP::BufferedTransformation::ChannelFlush(std::string const&, bool, int, bool)", referenced from:

 vtable for CryptoPP::SimpleProxyFilter in MYCLASSBBB.o
 vtable for CryptoPP::Bufferless<CryptoPP::Filter> in MYCLASSBBB.o

我认为使用libc++ ，这是LLVM的C ++标准库。我认为，因为我没有看到-stdlib=libc++（但我不记得是否直接传递给ld。

符号在github's prebuilt cryptopp中定义（即我的github，顺便说一句）。以下是验证方法。

首先，从胖库中提取arm64库：

$ xcrun -sdk iphoneos lipo libcryptopp.a -thin arm64 -output libcryptopp-arm64.a
$ ls
libcryptopp-arm64.a libcryptopp.a

接下来，使用nm转储全局符号，并使用c++filt进行解码：

$ nm -g libcryptopp-arm64.a | c++filt | grep BufferedTransformation::ChannelFlush | grep " T "
0000000000002110 T CryptoPP::BufferedTransformation::ChannelFlush(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, bool, int, bool)

国会大厦T表示您正在搜索已定义和导出的符号。较低t表示其定义的但未导出 - 即私有。国会大厦U意味着未定义。

__1是libc++（LLVM）用于区分libstdc++（GNU）的内容。 std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >是string，因此可以重写为：

CryptoPP::BufferedTransformation::ChannelFlush(std::__1::string const&, bool, int, bool)

如果这个库是针对libstdc++（GNU）构建的，那么库中的符号将是：

CryptoPP::BufferedTransformation::ChannelFlush(std:::string const&, bool, int, bool)

我们可以重复第二个问题的孩子，它遵循相同的模式（libc++，而不是libstdc++）：

$ nm -g libcryptopp-arm64.a | c++filt | grep CryptoPP::Filter::CopyRangeTo2 | grep " T "
00000000000001c4 T CryptoPP::Filter::CopyRangeTo2(CryptoPP::BufferedTransformation&, unsigned long long&, unsigned long long, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, bool) const

这可以改写为：

CryptoPP::Filter::CopyRangeTo2(CryptoPP::BufferedTransformation&, unsigned long long&, unsigned long long, std::__1::string const&, bool) const

-----

IF 你需要GNU＆＃39; libstdc++，然后你可以自己构建它。以下是步骤：

  1. 从网站下载并解压缩Crypto ++
  2. 下载并解包cryptopp-mobile.zip。将其解压缩到Crypto ++源文件顶部
  3. 打开新的GNUmakefile，通过搜索以IS_IOS
    4. 开头的块来查找iOS规则
  4. 在IS_IOS区块中更改此行：CXXFLAGS += -stdlib=libc++。将其更改为CXXFLAGS += -stdlib=libstdc++
  5. 交叉编译......

    6. -----

    我下载了Cocos2D-x并试图查看它的配置（我不是Cmake的家伙，所以我可能错了以下内容）。它在CmakeList.txt：

    中有以下内容 
    if(MSVC)
  ADD_DEFINITIONS(-D_CRT_SECURE_NO_WARNINGS -D_SCL_SECURE_NO_WARNINGS
                  -wd4251 -wd4244 -wd4334 -wd4005 -wd4820 -wd4710
                  -wd4514 -wd4056 -wd4996 -wd4099)
else()
  set(CMAKE_C_FLAGS_DEBUG "-g -Wall -DCOCOS2D_DEBUG=1")
  set(CMAKE_CXX_FLAGS_DEBUG ${CMAKE_C_FLAGS_DEBUG})
  set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fno-exceptions -std=c99")
  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fno-exceptions -std=c++11 -Wno-deprecated-declarations -Wno-reorder")
  if(CLANG)
    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -stdlib=libc++")
  endif()
endif(MSVC)

    如果 Cmake正在做我怀疑的事情，那么它使用LLVM＆＃39; libc++。但它也使用-std=c++11，而GitHub项目没有使用它。但我不确定-std=c++11在这里会有所作为。

    只是自行车脱落，但这是一个不好的迹象：_SCL_SECURE_NO_WARNINGS。如果他们公然这样做，那么他们可能会有各种程度的不良和破碎。 （只是我对审计软件的经验）。

    如果感兴趣，__1是用于版本控制的内联命名空间。请参阅What are inline namespaces for?和Where does the __1 symbol come from when using LLVM's libc++?。

相关问题
最新问题