symbol undefined with third party library

[njeans]

Hi, I want to do static code analysis of c/c++ code in an enclave. I am trying to see if I can use Libclang in my enclave.

I have installed libclang-dev in my Dockerfile and added

• -I/usr/lib/llvm-6.0/include to Enclave_Include_Paths
• -L/usr/lib/llvm-6.0/lib/ -lclang to Enclave_Link_Flags between --start-group and --end-group flags

I am getting the errors

LINK => enclave.so -Wl,-z,relro,-z,now,-z,noexecstack -Wl,--no-undefined -nostdlib -nodefaultlibs -nostartfiles -L/opt/intel/sgxsdk/lib64 -Wl,--whole-archive -lsgx_trts -Wl,--no-whole-archive -Wl,--start-group -lsgx_tstdc -lsgx_tcxx -lsgx_tcrypto -lsgx_tservice -lsgx_tprotected_fs -L/usr/lib/llvm-6.0/lib/ -lclang -Wl,--end-group -Wl,-Bstatic -Wl,-Bsymbolic -Wl,--no-undefined -Wl,-pie,-eenclave_entry -Wl,--export-dynamic -Wl,--defsym,__ImageBase=0 -Wl,--gc-sections -Wl,--version-script=Enclave/Enclave.lds [check_symbol_table elfparser.cpp:253] symbol 'clang_createIndex' is undefined Symbol table incorrect The input enclave file is not correct. Error happened while signing the enclave.

I was expecting errors since it is not ported for sgx but the function it is talking about is just the libclang api function. Any advice is appreciated.

[baoqian426]

how to resolve this problem

[njeans]

It can't be resolved as far as I know