Я использую NDK 18 и собираю статическую библиотеку отдельно, используя автономный набор инструментов x86_64 NDK.Я могу связать его успешно, но когда я пытаюсь получить доступ к библиотеке нетривиальным способом, я получаю десятки ошибок при сборке, говоря что-то вроде:
... requires dynamic R_X86_64_PC32 reloc against '_ZZN4seal4util21get_msb_index_genericEPmmE15deBruijnTable64' which may overflow at runtime; recompile with -fPIC
См. Мой предыдущий вопрос для получения подробной информации о моих файлах сборки.: Почему я все еще получаю неопределенные ошибки ссылок, связывающих статическую библиотеку с CMake в Android NDK?
Следуя приведенным здесь советам: Ошибка «Перекомпилировать с -fPIC» сохраняется даже после добавления-fPIC флаг компиляции Я удостоверился, что скомпилировал статическую библиотеку с -fPIC (и CMake с VERBOSE = 1, чтобы подтвердить, что -fPIC используется), но я все еще получаю ошибки.Из того, что я могу сказать, я не могу скомпилировать эту библиотеку как общую библиотеку, не взломав ее файл CMake.
Некоторые ответы здесь: Как перекомпилировать с -fPIC предложить добавить -fPIC сразу после компилятора.Я попробовал это также без успеха.
пример выходных данных при компиляции статической библиотеки (подтверждение того, что cmake использует -fPIC):
Building CXX object CMakeFiles/seal.dir/seal/bigpolyarray.cpp.o
/home/user/AndroidStudioProjects/SEALApp/gen-libs/toolchains/x86_64/bin/x86_64-linux-android-clang++ -fPIC -I/home/user/AndroidStudioProjects/SEALApp/gen-libs/seal/SEAL_2.3.1/SEAL -fPIC -fPIE -O3 -DNDEBUG -std=gnu++17 -o CMakeFiles/seal.dir/seal/bigpolyarray.cpp.o -c /home/user/AndroidStudioProjects/SEALApp/gen-libs/seal/SEAL_2.3.1/SEAL/seal/bigpolyarray.cpp
Ошибки:
Build command failed.
Error while executing process /home/wyoumans/Android/Sdk/cmake/3.6.4111459/bin/cmake with arguments {--build /home/wyoumans/AndroidStudioProjects/SEALApp/app/.externalNativeBuild/cmake/debug/x86_64 --target native-lib}
[1/2] Building CXX object CMakeFiles/native-lib.dir/src/main/cpp/native-lib.cpp.o
[2/2] Linking CXX shared library ../../../../build/intermediates/cmake/debug/obj/x86_64/libnative-lib.so
FAILED: : && /opt/android-ndk-r18/toolchains/llvm/prebuilt/linux-x86_64/bin/clang++ --target=x86_64-none-linux-android21 --gcc-toolchain=/opt/android-ndk-r18/toolchains/x86_64-4.9/prebuilt/linux-x86_64 --sysroot=/opt/android-ndk-r18/sysroot -fPIC -fPIC -isystem /opt/android-ndk-r18/sysroot/usr/include/x86_64-linux-android -g -DANDROID -ffunction-sections -funwind-tables -fstack-protector-strong -no-canonical-prefixes -Wa,--noexecstack -Wformat -Werror=format-security -std=c++11 -std=gnu++1z -O0 -fno-limit-debug-info -Wl,--exclude-libs,libgcc.a -Wl,--exclude-libs,libatomic.a -nostdlib++ --sysroot /opt/android-ndk-r18/platforms/android-21/arch-x86_64 -Wl,--build-id -Wl,--warn-shared-textrel -Wl,--fatal-warnings -L/opt/android-ndk-r18/sources/cxx-stl/llvm-libc++/libs/x86_64 -Wl,--no-undefined -Wl,-z,noexecstack -Qunused-arguments -Wl,-z,relro -Wl,-z,now -shared -Wl,-soname,libnative-lib.so -o ../../../../build/intermediates/cmake/debug/obj/x86_64/libnative-lib.so CMakeFiles/native-lib.dir/src/main/cpp/native-lib.cpp.o ../../../../libs/seal/x86_64/lib/libseal.a /opt/android-ndk-r18/platforms/android-21/arch-x86_64/usr/lib64/liblog.so -latomic -lm "/opt/android-ndk-r18/sources/cxx-stl/llvm-libc++/libs/x86_64/libc++_static.a" "/opt/android-ndk-r18/sources/cxx-stl/llvm-libc++/libs/x86_64/libc++abi.a" && :
/opt/android-ndk-r18/toolchains/x86_64-4.9/prebuilt/linux-x86_64/lib/gcc/x86_64-linux-android/4.9.x/../../../../x86_64-linux-android/bin/ld: error: ../../../../libs/seal/x86_64/lib/libseal.a(bigpoly.cpp.o): requires dynamic R_X86_64_PC32 reloc against '_ZZN4seal4util21get_msb_index_genericEPmmE15deBruijnTable64' which may overflow at runtime; recompile with -fPIC
/opt/android-ndk-r18/toolchains/x86_64-4.9/prebuilt/linux-x86_64/lib/gcc/x86_64-linux-android/4.9.x/../../../../x86_64-linux-android/bin/ld: error: ../../../../libs/seal/x86_64/lib/libseal.a(bigpoly.cpp.o): requires dynamic R_X86_64_PC32 reloc against '_ZTCNSt6__ndk119basic_ostringstreamIcNS_11char_traitsIcEENS_9allocatorIcEEEE0_NS_13basic_ostreamIcS2_EE' which may overflow at runtime; recompile with -fPIC
/opt/android-ndk-r18/toolchains/x86_64-4.9/prebuilt/linux-x86_64/lib/gcc/x86_64-linux-android/4.9.x/../../../../x86_64-linux-android/bin/ld: error: ../../../../libs/seal/x86_64/lib/libseal.a(bigpoly.cpp.o): requires dynamic R_X86_64_PC32 reloc against '_ZTVNSt6__ndk119basic_ostringstreamIcNS_11char_traitsIcEENS_9allocatorIcEEEE' which may overflow at runtime; recompile with -fPIC
/opt/android-ndk-r18/toolchains/x86_64-4.9/prebuilt/linux-x86_64/lib/gcc/x86_64-linux-android/4.9.x/../../../../x86_64-linux-android/bin/ld: error: ../../../../libs/seal/x86_64/lib/libseal.a(bigpoly.cpp.o): requires dynamic R_X86_64_PC32 reloc against '_ZTVNSt6__ndk119basic_ostringstreamIcNS_11char_traitsIcEENS_9allocatorIcEEEE' which may overflow at runtime; recompile with -fPIC
/opt/android-ndk-r18/toolchains/x86_64-4.9/prebuilt/linux-x86_64/lib/gcc/x86_64-linux-android/4.9.x/../../../../x86_64-linux-android/bin/ld: error: ../../../../libs/seal/x86_64/lib/libseal.a(bigpoly.cpp.o): requires dynamic R_X86_64_PC32 reloc against '_ZTVNSt6__ndk119basic_ostringstreamIcNS_11char_traitsIcEENS_9allocatorIcEEEE' which may overflow at runtime; recompile with -fPIC
/opt/android-ndk-r18/toolchains/x86_64-4.9/prebuilt/linux-x86_64/lib/gcc/x86_64-linux-android/4.9.x/../../../../x86_64-linux-android/bin/ld: error: ../../../../libs/seal/x86_64/lib/libseal.a(bigpoly.cpp.o): requires dynamic R_X86_64_PC32 reloc against '_ZTVNSt6__ndk119basic_ostringstreamIcNS_11char_traitsIcEENS_9allocatorIcEEEE' which may overflow at runtime; recompile with -fPIC
/opt/android-ndk-r18/toolchains/x86_64-4.9/prebuilt/linux-x86_64/lib/gcc/x86_64-linux-android/4.9.x/../../../../x86_64-linux-android/bin/ld: error: ../../../../libs/seal/x86_64/lib/libseal.a(bigpoly.cpp.o): requires dynamic R_X86_64_PC32 reloc against '_ZTVNSt6__ndk115basic_stringbufIcNS_11char_traitsIcEENS_9allocatorIcEEEE' which may overflow at runtime; recompile with -fPIC
/opt/android-ndk-r18/toolchains/x86_64-4.9/prebuilt/linux-x86_64/lib/gcc/x86_64-linux-android/4.9.x/../../../../x86_64-linux-android/bin/ld: error: ../../../../libs/seal/x86_64/lib/libseal.a(bigpoly.cpp.o): requires dynamic R_X86_64_PC32 reloc against '_ZTVNSt6__ndk115basic_stringbufIcNS_11char_traitsIcEENS_9allocatorIcEEEE' which may overflow at runtime; recompile with -fPIC
/opt/android-ndk-r18/toolchains/x86_64-4.9/prebuilt/linux-x86_64/lib/gcc/x86_64-linux-android/4.9.x/../../../../x86_64-linux-android/bin/ld: error: ../../../../libs/seal/x86_64/lib/libseal.a(bigpoly.cpp.o): requires dynamic R_X86_64_PC32 reloc against '_ZTVNSt6__ndk115basic_streambufIcNS_11char_traitsIcEEEE' which may overflow at runtime; recompile with -fPIC
/opt/android-ndk-r18/toolchains/x86_64-4.9/prebuilt/linux-x86_64/lib/gcc/x86_64-linux-android/4.9.x/../../../../x86_64-linux-android/bin/ld: error: ../../../../libs/seal/x86_64/lib/libseal.a(bigpoly.cpp.o): requires dynamic R_X86_64_PC32 reloc against '_ZTVNSt6__ndk115basic_streambufIcNS_11char_traitsIcEEEE' which may overflow at runtime; recompile with -fPIC
/opt/android-ndk-r18/toolchains/x86_64-4.9/prebuilt/linux-x86_64/lib/gcc/x86_64-linux-android/4.9.x/../../../../x86_64-linux-android/bin/ld: error: ../../../../libs/seal/x86_64/lib/libseal.a(biguint.cpp.o): requires dynamic R_X86_64_PC32 reloc against '_ZZN4seal4util21get_msb_index_genericEPmmE15deBruijnTable64' which may overflow at runtime; recompile with -fPIC
/opt/android-ndk-r18/toolchains/x86_64-4.9/prebuilt/linux-x86_64/lib/gcc/x86_64-linux-android/4.9.x/../../../../x86_64-linux-android/bin/ld: error: ../../../../libs/seal/x86_64/lib/libseal.a(smallmodulus.cpp.o): requires dynamic R_X86_64_PC32 reloc against '_ZZN4seal4util21get_msb_index_genericEPmmE15deBruijnTable64' which may overflow at runtime; recompile with -fPIC
/opt/android-ndk-r18/toolchains/x86_64-4.9/prebuilt/linux-x86_64/lib/gcc/x86_64-linux-android/4.9.x/../../../../x86_64-linux-android/bin/ld: error: ../../../../libs/seal/x86_64/lib/libseal.a(globals.cpp.o): requires dynamic R_X86_64_PC32 reloc against '_ZN4seal4util16global_variables18global_memory_poolE' which may overflow at runtime; recompile with -fPIC
/opt/android-ndk-r18/toolchains/x86_64-4.9/prebuilt/linux-x86_64/lib/gcc/x86_64-linux-android/4.9.x/../../../../x86_64-linux-android/bin/ld: error: ../../../../libs/seal/x86_64/lib/libseal.a(hash.cpp.o): requires dynamic R_X86_64_PC32 reloc against '_ZN4seal4util12HashFunction3rhoE' which may overflow at runtime; recompile with -fPIC
/opt/android-ndk-r18/toolchains/x86_64-4.9/prebuilt/linux-x86_64/lib/gcc/x86_64-linux-android/4.9.x/../../../../x86_64-linux-android/bin/ld: error: ../../../../libs/seal/x86_64/lib/libseal.a(mempool.cpp.o): requires dynamic R_X86_64_PC32 reloc against '_ZTVN4seal4util16MemoryPoolHeadMTE' which may overflow at runtime; recompile with -fPIC
/opt/android-ndk-r18/toolchains/x86_64-4.9/prebuilt/linux-x86_64/lib/gcc/x86_64-linux-android/4.9.x/../../../../x86_64-linux-android/bin/ld: error: ../../../../libs/seal/x86_64/lib/libseal.a(uintarith.cpp.o): requires dynamic R_X86_64_PC32 reloc against '_ZZN4seal4util21get_msb_index_genericEPmmE15deBruijnTable64' which may overflow at runtime; recompile with -fPIC
/opt/android-ndk-r18/toolchains/x86_64-4.9/prebuilt/linux-x86_64/lib/gcc/x86_64-linux-android/4.9.x/../../../../x86_64-linux-android/bin/ld: warning: shared library text segment is not shareable
clang++: error: linker command failed with exit code 1 (use -v to see invocation)
ninja: build stopped: subcommand failed.