c++ - libpthread 和 libc 中的 undefined reference

Question

我在 odbc sdk 中编译一些示例时遇到问题。在与库顺序混合了一段时间后，我以某种方式设法获得了其中少数 undefined reference 的数量。

可悲的是，我不知道如何摆脱其余的。这是失败的命令:

g++ -Wall -z defs -m64 -DSIMBA -D_REENTRANT -fPIC -O0 -g -shared Common/TabbedUnicodeFileReader_Linux_x8664_debug.cpp.o Core/QSConnection_Linux_x8664_debug.cpp.o Core/QSDriver_Linux_x8664_debug.cpp.o Core/QSEnvironment_Linux_x8664_debug.cpp.o Core/QSStatement_Linux_x8664_debug.cpp.o DataEngine/QSDataEngine_Linux_x8664_debug.cpp.o DataEngine/QSMetadataHelper_Linux_x8664_debug.cpp.o DataEngine/QSTable_Linux_x8664_debug.cpp.o DataEngine/QSTableUtilities_Linux_x8664_debug.cpp.o DataEngine/QSTypeInfoMetadataSource_Linux_x8664_debug.cpp.o Common/QSTableMetadataFile_Unix_Linux_x8664_debug.cpp.o Common/QSUtilities_Unix_Linux_x8664_debug.cpp.o Main_Unix_Linux_x8664_debug.cpp.o    -Wl,--no-undefined -Wl,--no-allow-shlib-undefined -Wl,--whole-archive,/home/hector/Downloads/SimbaEngineSDK/9.0/DataAccessComponents//Lib/Linux_x8664/libSimbaDSI_debug.a,/home/hector/Downloads/SimbaEngineSDK/9.0/DataAccessComponents//Lib/Linux_x8664/libSimbaSupport_debug.a,/home/hector/Downloads/SimbaEngineSDK/9.0/DataAccessComponents//Lib/Linux_x8664/libAEProcessor_debug.a,/home/hector/Downloads/SimbaEngineSDK/9.0/DataAccessComponents//Lib/Linux_x8664/libCore_debug.a,/home/hector/Downloads/SimbaEngineSDK/9.0/DataAccessComponents//Lib/Linux_x8664/libDSIExt_debug.a,/home/hector/Downloads/SimbaEngineSDK/9.0/DataAccessComponents//Lib/Linux_x8664/libExecutor_debug.a,/home/hector/Downloads/SimbaEngineSDK/9.0/DataAccessComponents//Lib/Linux_x8664/libParser_debug.a,/home/hector/Downloads/SimbaEngineSDK/9.0/DataAccessComponents//Lib/Linux_x8664/libSimbaODBC_debug.a -Wl,--no-whole-archive -Wl,--soname=../Bin/Linux_x8664/libQuickstart_debug.so -L/home/hector/Downloads/SimbaEngineSDK/9.0/DataAccessComponents//ThirdParty/icu/Linux_x8664/lib -licuuc_simba64 -licudata_simba64 -licui18n_simba64 -lpthread -lm -lc -ldl -Wl,--version-script=exports_Linux.map -o ../Bin/Linux_x8664/libQuickstart_debug.so

编辑:缺少符号

/usr/lib/gcc/x86_64-linux-gnu/4.6/../../../x86_64-linux-gnu/libdl.so: undefined reference to `_dl_rtld_di_serinfo@GLIBC_PRIVATE'
/lib/x86_64-linux-gnu/libpthread.so.0: undefined reference to `_dl_allocate_tls_init@GLIBC_PRIVATE'
/lib/x86_64-linux-gnu/libpthread.so.0: undefined reference to `__libc_stack_end@GLIBC_2.2.5'
/lib/x86_64-linux-gnu/libpthread.so.0: undefined reference to `_dl_get_tls_static_info@GLIBC_PRIVATE'
/lib/x86_64-linux-gnu/libpthread.so.0: undefined reference to `__tls_get_addr@GLIBC_2.3'
/lib/x86_64-linux-gnu/libpthread.so.0: undefined reference to `_dl_deallocate_tls@GLIBC_PRIVATE'
/lib/x86_64-linux-gnu/libpthread.so.0: undefined reference to `_rtld_global@GLIBC_PRIVATE'
/lib/x86_64-linux-gnu/libc.so.6: undefined reference to `_dl_argv@GLIBC_PRIVATE'
/lib/x86_64-linux-gnu/libc.so.6: undefined reference to `__libc_enable_secure@GLIBC_PRIVATE'
/lib/x86_64-linux-gnu/libpthread.so.0: undefined reference to `_dl_allocate_tls@GLIBC_PRIVATE'
/lib/x86_64-linux-gnu/libpthread.so.0: undefined reference to `_rtld_global_ro@GLIBC_PRIVATE'
/lib/x86_64-linux-gnu/libpthread.so.0: undefined reference to `_dl_make_stack_executable@GLIBC_PRIVATE'

固定:

删除 -Wl,--no-allow-shlib-undefined 似乎可以解决问题。构建的共享库似乎运行良好。

Answer 1

我在一个完全独立的应用程序中遇到了类似的问题。以下编译时标志对我有用:

-B/usr/lib/gold-ld/

我在:

https://bugs.launchpad.net/ubuntu/+source/binutils/+bug/885927

我正在使用 gcc (Ubuntu/Linaro 4.6.1-9ubuntu3) 4.6.1 我正在尝试使用 lto 进行编译。