[Lldb-commits] [PATCH] D76906: [lldb] Fixing the bug that the "log timer" has no tab completion

Mon Apr 20 13:33:47 PDT 2020

teemperor added a comment.

In D76906#1972413 <https://reviews.llvm.org/D76906#1972413>, @gedatsu217 wrote:

>   [39/575] Linking CXX shared library lib/libc++abi.1.0.dylib
>   FAILED: lib/libc++abi.1.0.dylib 
>   : && /Library/Developer/CommandLineTools/usr/bin/c++ -fPIC -fvisibility-inlines-hidden -Werror=date-time -Werror=unguarded-availability-new -Wall -Wextra -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wmissing-field-initializers -pedantic -Wno-long-long -Wimplicit-fallthrough -Wcovered-switch-default -Wno-noexcept-type -Wnon-virtual-dtor -Wdelete-non-virtual-dtor -Wstring-conversion -fdiagnostics-color  -g  -dynamiclib -Wl,-headerpad_max_install_names -nodefaultlibs  -compatibility_version 1.0.0 -current_version 1.0.0 -o lib/libc++abi.1.0.dylib -install_name @rpath/libc++abi.1.dylib projects/libcxxabi/src/CMakeFiles/cxxabi_shared.dir/cxa_aux_runtime.cpp.o projects/libcxxabi/src/CMakeFiles/cxxabi_shared.dir/cxa_default_handlers.cpp.o projects/libcxxabi/src/CMakeFiles/cxxabi_shared.dir/cxa_demangle.cpp.o projects/libcxxabi/src/CMakeFiles/cxxabi_shared.dir/cxa_exception_storage.cpp.o projects/libcxxabi/src/CMakeFiles/cxxabi_shared.dir/cxa_guard.cpp.o projects/libcxxabi/src/CMakeFiles/cxxabi_shared.dir/cxa_handlers.cpp.o projects/libcxxabi/src/CMakeFiles/cxxabi_shared.dir/cxa_unexpected.cpp.o projects/libcxxabi/src/CMakeFiles/cxxabi_shared.dir/cxa_vector.cpp.o projects/libcxxabi/src/CMakeFiles/cxxabi_shared.dir/cxa_virtual.cpp.o projects/libcxxabi/src/CMakeFiles/cxxabi_shared.dir/stdlib_exception.cpp.o projects/libcxxabi/src/CMakeFiles/cxxabi_shared.dir/stdlib_stdexcept.cpp.o projects/libcxxabi/src/CMakeFiles/cxxabi_shared.dir/stdlib_typeinfo.cpp.o projects/libcxxabi/src/CMakeFiles/cxxabi_shared.dir/abort_message.cpp.o projects/libcxxabi/src/CMakeFiles/cxxabi_shared.dir/fallback_malloc.cpp.o projects/libcxxabi/src/CMakeFiles/cxxabi_shared.dir/private_typeinfo.cpp.o projects/libcxxabi/src/CMakeFiles/cxxabi_shared.dir/stdlib_new_delete.cpp.o projects/libcxxabi/src/CMakeFiles/cxxabi_shared.dir/cxa_exception.cpp.o projects/libcxxabi/src/CMakeFiles/cxxabi_shared.dir/cxa_personality.cpp.o  -Wl,-rpath, at loader_path/../lib  -lSystem  -Wl,-exported_symbols_list,/Users/shu/Documents/llvm-project/libcxxabi/src/../lib/itanium-base.exp  -Wl,-exported_symbols_list,/Users/shu/Documents/llvm-project/libcxxabi/src/../lib/new-delete.exp  -Wl,-exported_symbols_list,/Users/shu/Documents/llvm-project/libcxxabi/src/../lib/personality-v0.exp && :
>   Undefined symbols for architecture x86_64:
>     "__ZTIDu", referenced from:
>        -exported_symbol[s_list] command line option
>     "__ZTIPDu", referenced from:
>        -exported_symbol[s_list] command line option
>     "__ZTIPKDu", referenced from:
>        -exported_symbol[s_list] command line option
>     "__ZTSDu", referenced from:
>        -exported_symbol[s_list] command line option
>     "__ZTSPDu", referenced from:
>        -exported_symbol[s_list] command line option
>     "__ZTSPKDu", referenced from:
>        -exported_symbol[s_list] command line option
>   ld: symbol(s) not found for architecture x86_64
>   clang: error: linker command failed with exit code 1 (use -v to see invocation)
>
>
> This is an error message. I know it is caused around libc++, but I don't know where parts should I fix. 
>  I did below to solve it.
>
> - delete build directory and make build directory again (cmake -G Ninja -DLLVM_ENABLE_PROJECTS="clang;lldb;libcxx;libcxxabi" ../llvm)
> - build each project(ninja lldb, ninja clang, ninja cxx, ninja cxxabi)
>   - but when I executed "ninja cxx" and "ninja cxxabi", the same error occured.
>
>     I sometimes tried to solve this problem this week, but I could not solve it. (I could not go to my laboratory because of coronavirus spreading, and I was busy dealing with that, so I could not take much time.)

I don't think I've seen this error before. Are you on the latest Xcode?

In any case, you should be able to just have "clang;lldb" in the project list which should get your check-lldb working. You won't get libc++ tests but at least the testsuit itself should work this way.

Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D76906/new/

https://reviews.llvm.org/D76906