[cfe-dev] linking error when running libTooling tutorial
Lou Wynn via cfe-dev
cfe-dev at lists.llvm.org
Mon Oct 22 05:16:34 PDT 2018
Nice, adding clangFrontend works! The tutorial needs an update.
Thanks.
Love,
Lou
On 10/22/18 8:06 PM, Kristóf Umann wrote:
> Shouldn't it be this?:
> set(LLVM_LINK_COMPONENTS Support)
>
> add_clang_executable(loop-convert
> LoopConvert.cpp
> )
> target_link_libraries(loop-convert
> PRIVATE
> clangFrontend
> clangTooling
> clangBasic
> clangASTMatchers
> )
>
> Lou Wynn <lewisurn at gmail.com <mailto:lewisurn at gmail.com>> ezt írta
> (időpont: 2018. okt. 22., H, 13:59):
>
> I've already added. This is my CMakeLists.txt:
>
> set(LLVM_LINK_COMPONENTS Support)
>
> add_clang_executable(loop-convert
> LoopConvert.cpp
> )
> target_link_libraries(loop-convert
> PRIVATE
> clangTooling
> clangBasic
> clangASTMatchers
> )
>
> Love,
> Lou
>
> On 10/22/18 7:18 PM, Kristóf Umann wrote:
>> Try adding clangFrontend to target_link_libraries in CMakeLists.txt.
>>
>> Lou Wynn via cfe-dev <cfe-dev at lists.llvm.org
>> <mailto:cfe-dev at lists.llvm.org>> ezt írta (időpont: 2018. okt.
>> 22., H, 12:14):
>>
>> I followed the libTooling tutorial at here:
>> http://clang.llvm.org/docs/LibASTMatchersTutorial.html to
>> write the loop-convert program. When I built it, I got the
>> following error (I used the unofficial monorepo to build clang):
>>
>>
>> $ ninja loop-convert
>> [1/1] Linking CXX executable bin/loop-convert
>> FAILED: : && /usr/bin/clang++-6.0 -fPIC
>> -fvisibility-inlines-hidden -Werror=date-time
>> -Werror=unguarded-availability-new -std=c++11 -Wall -Wextra
>> -Wno-unused-parameter -Wwrite-strings -Wcast-qual
>> -Wmissing-field-initializers -pedantic -Wno-long-long
>> -Wcovered-switch-default -Wno-noexcept-type
>> -Wnon-virtual-dtor -Wdelete-non-virtual-dtor
>> -Wstring-conversion -fdiagnostics-color -fno-common
>> -Woverloaded-virtual -Wno-nested-anon-types -g
>> -fuse-ld=lld-6.0 -Wl,--color-diagnostics
>> -Wl,-allow-shlib-undefined
>> tools/clang/tools/extra/loop-convert/CMakeFiles/loop-convert.dir/LoopConvert.cpp.o
>> -o bin/loop-convert lib/libLLVMSupport.so.8svn -lpthread
>> lib/libclangTooling.so.8svn lib/libclangBasic.so.8svn
>> lib/libclangASTMatchers.so.8svn -Wl,-rpath,"\$ORIGIN/../lib" && :
>> /usr/bin/ld.lld-6.0: error: undefined symbol:
>> clang::PCHContainerOperations::PCHContainerOperations()
>> >>> referenced by new_allocator.h:120
>> (/usr/bin/../lib/gcc/x86_64-linux-gnu/5.4.0/../../../../include/c++/5.4.0/ext/new_allocator.h:120)
>> >>>
>> tools/clang/tools/extra/loop-convert/CMakeFiles/loop-convert.dir/LoopConvert.cpp.o:(void
>> __gnu_cxx::new_allocator<clang::PCHContainerOperations>::construct<clang::PCHContainerOperations>(clang::PCHContainerOperations*))
>>
>> /usr/bin/ld.lld-6.0: error: undefined symbol: vtable for
>> clang::SyntaxOnlyAction
>> >>> referenced by FrontendActions.h:158
>> (/home/lu/work/git-repos/llvm-mono/llvm-project/clang/include/clang/Frontend/FrontendActions.h:158)
>> >>>
>> tools/clang/tools/extra/loop-convert/CMakeFiles/loop-convert.dir/LoopConvert.cpp.o:(clang::SyntaxOnlyAction::SyntaxOnlyAction())
>>
>> /usr/bin/ld.lld-6.0: error: undefined symbol:
>> clang::FrontendAction::FrontendAction()
>> >>> referenced by FrontendAction.h:253
>> (/home/lu/work/git-repos/llvm-mono/llvm-project/clang/include/clang/Frontend/FrontendAction.h:253)
>> >>>
>> tools/clang/tools/extra/loop-convert/CMakeFiles/loop-convert.dir/LoopConvert.cpp.o:(clang::ASTFrontendAction::ASTFrontendAction())
>>
>> /usr/bin/ld.lld-6.0: error: undefined symbol: vtable for
>> clang::ASTFrontendAction
>> >>> referenced by FrontendAction.h:253
>> (/home/lu/work/git-repos/llvm-mono/llvm-project/clang/include/clang/Frontend/FrontendAction.h:253)
>> >>>
>> tools/clang/tools/extra/loop-convert/CMakeFiles/loop-convert.dir/LoopConvert.cpp.o:(clang::ASTFrontendAction::ASTFrontendAction())
>> clang: error: linker command failed with exit code 1 (use -v
>> to see invocation)
>> ninja: build stopped: subcommand failed.
>>
>>
>> Can anyone point me to the right direction to fix it?
>>
>> Thanks.
>>
>> --
>> Love,
>> Lou
>>
>> _______________________________________________
>> cfe-dev mailing list
>> cfe-dev at lists.llvm.org <mailto:cfe-dev at lists.llvm.org>
>> http://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-dev
>>
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