构建ARM64时，体系结构x86_64的未定义符号 [英] Undefined symbols for architecture x86_64 when building for ARM64
问题描述
我构建了cryptopp lib以用于ios应用程序。但是没有用，只告诉我
I built the cryptopp lib to using for an ios application. but isn't working , only told me
架构x86_64的未定义符号：
CryptoPP :: ProxyFilter :: IsolatedFlush（bool，bool），引用自：
"Undefined symbols for architecture x86_64:
"CryptoPP::ProxyFilter::IsolatedFlush(bool, bool)", referenced from: "
等等......
我遵循Crypopp wiki页面的指南，但它仍然崩溃。
and I follow the Crypopp wiki page's guideline, but it still crashing.
我该如何解决这个问题？
how can I fix that?
ld：警告：忽略文件[path] /libcryptopp.a，缺少文件[路径]中所需的
架构x86_64 libcryptopp.a（4
切片）CryptoPP :: ProxyFilter :: IsolatedFlush（bool，bool），引用
来自：...... ......（118件事）
ld: warning: ignoring file [path]/libcryptopp.a, missing required architecture x86_64 in file [path]/libcryptopp.a (4 slices)CryptoPP::ProxyFilter::IsolatedFlush(bool, bool)", referenced from: ... ... ... (118 things)
我尝试使用 github的预制cryptopp 但它也不起作用。它会发生如下错误：
I tried to build with github's prebuilt cryptopp but it doesn't work, too. it occur errors like below:
架构arm64的未定义符号：
CryptoPP :: BufferedTransformation :: ChannelFlush（std :: string const&，bool，int，bool），引自：
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
CryptoPP :: Filter :: CopyRangeTo2（CryptoPP :: BufferedTransformation& ;, unsigned long long&a mp;，unsigned long long，std :: string const&，bool）const，引自：
"CryptoPP::Filter::CopyRangeTo2(CryptoPP::BufferedTransformation&, unsigned long long&, unsigned long long, std::string const&, bool) const", referenced from:
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
CryptoPP :: Filter :: TransferTo2（CryptoPP :: BufferedTransformation& ;, unsigned long long&，std :: string const&，bool），引自：
"CryptoPP::Filter::TransferTo2(CryptoPP::BufferedTransformation&, unsigned long long&, std::string const&, bool)", referenced from:
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
CryptoPP :: BufferedTransformation :: ChannelPut2（std :: string const& ;, unsigned char const *，unsigned long，int，bool），引用自：
"CryptoPP::BufferedTransformation::ChannelPut2(std::string const&, unsigned char const*, unsigned long, int, bool)", referenced from:
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
CryptoPP :: BufferedTransformation :: ChannelCreatePutSpace（std :: string const& ;, unsigned long&），引自：
"CryptoPP::BufferedTransformation::ChannelCreatePutSpace(std::string const&, unsigned long&)", referenced from:
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
CryptoPP :: BufferedTransformation :: ChannelPutModifiable2（std :: string const& ;, unsigned char *，unsigned long，int，bool），引用自：
"CryptoPP::BufferedTransformation::ChannelPutModifiable2(std::string const&, unsigned char*, unsigned long, int, bool)", referenced from:
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
CryptoPP :: BufferedTransformation :: ChannelMessageSeriesEnd（std :: string const&，int ，bool），引用自：
"CryptoPP::BufferedTransformation::ChannelMessageSeriesEnd(std::string const&, int, bool)", referenced from:
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
CryptoPP :: BufferedTransformation :: SetRetrievalChannel（std :: string const&） ，引用自：
"CryptoPP::BufferedTransformation::SetRetrievalChannel(std::string const&)", referenced from:
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
CryptoPP :: StringSinkTemplate :: StringSinkTemplate（std :: string&），引自：
"CryptoPP::StringSinkTemplate::StringSinkTemplate(std::string&)", referenced from:
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）
ld: symbol(s) not found for architecture arm64 clang: error: linker command failed with exit code 1 (use -v to see invocation)
MYCLASSAAA和MYCLASSBBB都是使用cryptopp lib的类。
the MYCLASSAAA and MYCLASSBBB are all of classes what using cryptopp lib.
我会尝试自己构建lib，但我认为可能会发生相同的错误。我想做什么？
I'll try to build the lib myself, but I think it maybe same errors happen. what I suppose to do?
和项目设置 - 我没有在Apple LLVM 6.0 - 语言中将Compile Sources As更改为Objective-C ++，I刚设置为根据文件类型。它必须是客观的-c ++？当我改变它时，它在另一个源中出现太多错误。因为它是cocos2d-x的遗留项目（0.12.0 / c ++项目）......
and project settings -- I didn't changed "Compile Sources As" to Objective-C++ at "Apple LLVM 6.0 - language", I just setted that to "According to File Type". it must be objective-c++? when I change to that, it occur too many errors in another sources. because it is legacy project of cocos2d-x(0.12.0 / c++ project)...
我希望你的帮助。谢谢。
I hope your help. thanks.
推荐答案
我解决了这个问题---简而言之，它必须用-stdlib = libstdc ++标志构建（到CXXFLAGS in GNUMAKEFILE）在构建libcryptopp时。
I solved this--- in short, it have to build with -stdlib=libstdc++ flag(to CXXFLAGS in GNUMAKEFILE) when building libcryptopp.
因为我的项目是遗留的cocos2d-x项目，所以标准库被设置为libstdc ++。
because my project is legacy cocos2d-x project, that's standard library is setted to libstdc++.
更多信息是此处。杰弗里非常详细地回答了我。
more infomation is here. jeffrey answered me about this in great detail.
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