如何链接rocketmq静态库?

[cgeffect]

系统: linux centos
版本: 5.0.1
-rw-r--r-- 1 xxx algorithm 200M Apr 16 22:11 librocketmq.a
-rwxr-xr-x 1 xxx algorithm 61M Apr 16 22:11 librocketmq.so
已经编译出了librocketmq.a, 还有libproto.a和libopencensus_proto.a, 工程链接只链接librocketmq.a不行, 报了很多absl, grpc, opencensus未定义的符号. rocketmq依赖的三方静态库不是直接打包进librocketmq.a的吗? 还需要单独链接吗?

/usr/local/lib/gcc/x86_64-pc-linux-gnu/11.1.0/../../../../x86_64-pc-linux-gnu/bin/ld: libmogic_cg.so: undefined reference to `opencensus::trace::Span::AddAttribute(absl::lts_20211102::string_view, opencensus::trace::AttributeValueRef) const'
/usr/local/lib/gcc/x86_64-pc-linux-gnu/11.1.0/../../../../x86_64-pc-linux-gnu/bin/ld: libmogic_cg.so: undefined reference to `absl::lts_20211102::FormatTime[abi:cxx11](absl::lts_20211102::string_view, absl::lts_20211102::Time, absl::lts_20211102::TimeZone)'
/usr/local/lib/gcc/x86_64-pc-linux-gnu/11.1.0/../../../../x86_64-pc-linux-gnu/bin/ld: libmogic_cg.so: undefined reference to `grpc::experimental::ExternalCertificateVerifier::~ExternalCertificateVerifier()'
/usr/local/lib/gcc/x86_64-pc-linux-gnu/11.1.0/../../../../x86_64-pc-linux-gnu/bin/ld: libmogic_cg.so: undefined reference to `absl::lts_20211102::numbers_internal::safe_strto32_base(absl::lts_20211102::string_view, int*, int)'
/usr/local/lib/gcc/x86_64-pc-linux-gnu/11.1.0/../../../../x86_64-pc-linux-gnu/bin/ld: libmogic_cg.so: undefined reference to `absl::lts_20211102::time_internal::cctz::utc_time_zone()'
/usr/local/lib/gcc/x86_64-pc-linux-gnu/11.1.0/../../../../x86_64-pc-linux-gnu/bin/ld: libmogic_cg.so: undefined reference to `opencensus::stats::ViewDescriptor::set_description(absl::lts_20211102::string_view)'
/usr/local/lib/gcc/x86_64-pc-linux-gnu/11.1.0/../../../../x86_64-pc-linux-gnu/bin/ld: libmogic_cg.so: undefined reference to `grpc::Timespec2Timepoint(gpr_timespec)'
/usr/local/lib/gcc/x86_64-pc-linux-gnu/11.1.0/../../../../x86_64-pc-linux-gnu/bin/ld: libmogic_cg.so: undefined reference to `absl::lts_20211102::ConvertDateTime(long, int, int, int, int, int, absl::lts_20211102::TimeZone)'
/usr/local/lib/gcc/x86_64-pc-linux-gnu/11.1.0/../../../../x86_64-pc-linux-gnu/bin/ld: libmogic_cg.so: undefined reference to `absl::lts_20211102::container_internal::ConvertDeletedToEmptyAndFullToDeleted(absl::lts_20211102::container_internal::ctrl_t*, unsigned long)'
/usr/local/lib/gcc/x86_64-pc-linux-gnu/11.1.0/../../../../x86_64-pc-linux-gnu/bin/ld: libmogic_cg.so: undefined reference to `absl::lts_20211102::hash_internal::MixingHashState::kSeed'
/usr/local/lib/gcc/x86_64-pc-linux-gnu/11.1.0/../../../../x86_64-pc-linux-gnu/bin/ld: libmogic_cg.so: undefined reference to `opencensus::stats::ViewDescriptor::RegisterForExport() const'
/usr/local/lib/gcc/x86_64-pc-linux-gnu/11.1.0/../../../../x86_64-pc-linux-gnu/bin/ld: libmogic_cg.so: undefined reference to `opencensus::tags::TagKey::name[abi:cxx11]() const'
/usr/local/lib/gcc/x86_64-pc-linux-gnu/11.1.0/../../../../x86_64-pc-linux-gnu/bin/ld: libmogic_cg.so: undefined reference to `absl::lts_20211102::ToTimeT(absl::lts_20211102::Time)'
/usr/local/lib/gcc/x86_64-pc-linux-gnu/11.1.0/../../../../x86_64-pc-linux-gnu/bin/ld: libmogic_cg.so: undefined reference to `google::protobuf::internal::ArenaStringPtr::Set(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, google::protobuf::Arena*)'

通过ldd 命令查看动态库的依赖, 发现libssl.so.1.1 和libcrypto.so.1.1 依赖的是动态库, 怎么才能使rocketmq依赖静态库呢?

linux-vdso.so.1 =>  (0x00007fff7db29000)
        libz.so.1 => /lib64/libz.so.1 (0x00007f6fe2850000)
        libdl.so.2 => /lib64/libdl.so.2 (0x00007f6fe264c000)
        librt.so.1 => /lib64/librt.so.1 (0x00007f6fe2444000)
        libpthread.so.0 => /lib64/libpthread.so.0 (0x00007f6fe2228000)
        libssl.so.1.1 => /home/xxx/third_party/prebuild/third_party/rocketmq-5.0/source/third_party/openssl/openssl_install/lib/libssl.so.1.1 (0x00007f6fe5354000)
        libcrypto.so.1.1 => /home/xxx/third_party/prebuild/third_party/rocketmq-5.0/source/third_party/openssl/openssl_install/lib/libcrypto.so.1.1 (0x00007f6fe1f3b000)
        libstdc++.so.6 => /usr/local/lib64/libstdc++.so.6 (0x00007f6fe1b35000)
        libm.so.6 => /lib64/libm.so.6 (0x00007f6fe1833000)
        libgcc_s.so.1 => /usr/local/lib64/libgcc_s.so.1 (0x00007f6fe161b000)
        libc.so.6 => /lib64/libc.so.6 (0x00007f6fe124d000)
        /lib64/ld-linux-x86-64.so.2 (0x00007f6fe51df000)

[lizhanhui]

静态链接的话, 要确保依赖的版本和你项目中的依赖保持一致, 不然会有符号冲突; 目前还是推荐使用共享库, 共享库只暴露出来RocketMQ的符号, 第三方依赖的符号转为弱符号. https://www.gnu.org/software/gnulib/manual/html_node/Exported-Symbols-of-Shared-Libraries.html

[cgeffect]

已解决

[lizhanhui]

如果熟悉Bazel的话, 建议使用Bazel, 源码依赖, 使用类似Maven的dependency resolution
参考: https://maven.apache.org/guides/introduction/introduction-to-dependency-mechanism.html
https://bazel.build/basics/dependencies

[cgeffect]

使用tag 5.0.1版本, 使用cmake和bazel都编译出了静态库, 在工程中链接时会出现undefine reference xxxx, 找不到rocketmq里的实现. 感觉cmake写的没有问题. 又把工程中链接的库改为动态库librocketmq.so, 链接没问题. 但是程序根本启动不了. 一启动就会出现如下错误.

之前使用rocketmq2.x的版本都没有出现过问题. 现在5.x的编译链接搞不定了.

[cgeffect]

我的项目中已经使用了protobuf3.20, 编译rocketmq时, 使用的grpc是1.462, grpc内部使用的protobuf是3.19.0, 目前确认时因为两个protobuf版本不同, 导致的crash. 有什么办法可把rocketmq里的依赖的静态库完全和工程里的静态库符号完全隔离? 通过这种方式吗? https://www.gnu.org/software/gnulib/manual/html_node/Exported-Symbols-of-Shared-Libraries.html