Build llvm_mode failed

[lcyfrank]

Thank you for your great job! But I have occured a problem while building this fuzzer.

I cd llvm_mode and type make to build the llvm_mode, but error, the message is:

/usr/bin/ld: ../afl-llvm-rt.o: in function `Tlsh_new':
/home/ubuntu/stateafl/llvm_mode/tlsh/src/tlsh-wrapper.cpp:6: undefined reference to `operator new(unsigned long)'
/usr/bin/ld: /home/ubuntu/stateafl/llvm_mode/tlsh/src/tlsh-wrapper.cpp:6: undefined reference to `operator delete(void*)'
/usr/bin/ld: ../afl-llvm-rt.o: in function `Tlsh_delete':
/home/ubuntu/stateafl/llvm_mode/tlsh/src/tlsh-wrapper.cpp:46: undefined reference to `operator delete(void*)'
/usr/bin/ld: ../afl-llvm-rt.o: in function `Tlsh::Tlsh()':
/home/ubuntu/stateafl/llvm_mode/tlsh/src/tlsh.cpp:69: undefined reference to `operator new(unsigned long)'
/usr/bin/ld: /home/ubuntu/stateafl/llvm_mode/tlsh/src/tlsh.cpp:69: undefined reference to `operator delete(void*)'
/usr/bin/ld: ../afl-llvm-rt.o: in function `Tlsh::Tlsh(Tlsh const&)':
/home/ubuntu/stateafl/llvm_mode/tlsh/src/tlsh.cpp:74: undefined reference to `operator new(unsigned long)'
/usr/bin/ld: /home/ubuntu/stateafl/llvm_mode/tlsh/src/tlsh.cpp:74: undefined reference to `operator delete(void*)'
/usr/bin/ld: ../afl-llvm-rt.o: in function `Tlsh::~Tlsh()':
/home/ubuntu/stateafl/llvm_mode/tlsh/src/tlsh.cpp:80: undefined reference to `operator delete(void*)'
/usr/bin/ld: /usr/bin/ld: DWARF error: could not find variable specification at offset 7e2
/usr/bin/ld: DWARF error: could not find variable specification at offset 7ed
/usr/bin/ld: DWARF error: could not find variable specification at offset 87a
../afl-llvm-rt.o: in function `TlshImpl::~TlshImpl()':
/home/ubuntu/stateafl/llvm_mode/tlsh/src/tlsh_impl.cpp:88: undefined reference to `operator delete[](void*)'
/usr/bin/ld: /home/ubuntu/stateafl/llvm_mode/tlsh/src/tlsh_impl.cpp:89: undefined reference to `operator delete[](void*)'
/usr/bin/ld: ../afl-llvm-rt.o: in function `TlshImpl::reset()':
/home/ubuntu/stateafl/llvm_mode/tlsh/src/tlsh_impl.cpp:94: undefined reference to `operator delete[](void*)'
/usr/bin/ld: /home/ubuntu/stateafl/llvm_mode/tlsh/src/tlsh_impl.cpp:96: undefined reference to `operator delete[](void*)'
/usr/bin/ld: ../afl-llvm-rt.o: in function `TlshImpl::update(unsigned char const*, unsigned int)':
/home/ubuntu/stateafl/llvm_mode/tlsh/src/tlsh_impl.cpp:176: undefined reference to `operator new[](unsigned long)'
/usr/bin/ld: ../afl-llvm-rt.o: in function `TlshImpl::final(int)':
/home/ubuntu/stateafl/llvm_mode/tlsh/src/tlsh_impl.cpp:406: undefined reference to `operator delete[](void*)'
/usr/bin/ld: /home/ubuntu/stateafl/llvm_mode/tlsh/src/tlsh_impl.cpp:411: undefined reference to `operator delete[](void*)'
/usr/bin/ld: /home/ubuntu/stateafl/llvm_mode/tlsh/src/tlsh_impl.cpp:420: undefined reference to `operator delete[](void*)'
/usr/bin/ld: /home/ubuntu/stateafl/llvm_mode/tlsh/src/tlsh_impl.cpp:441: undefined reference to `operator delete[](void*)'
/usr/bin/ld: /home/ubuntu/stateafl/llvm_mode/tlsh/src/tlsh_impl.cpp:462: undefined reference to `operator delete[](void*)'
/usr/bin/ld: ../afl-llvm-rt.o: in function `TlshImpl::hash(int) const':
/home/ubuntu/stateafl/llvm_mode/tlsh/src/tlsh_impl.cpp:557: undefined reference to `operator new[](unsigned long)'
/usr/bin/ld: ../afl-llvm-rt.o:(.eh_frame+0xf97): undefined reference to `__gxx_personality_v0'
/usr/bin/ld: ../afl-llvm-rt.o:(.eh_frame+0x112f): undefined reference to `__gxx_personality_v0'
clang-11: error: linker command failed with exit code 1 (use -v to see invocation)
make: *** [Makefile:135: test_build] Error 1

My OS is CentOS.

[rnatella]

Hello, you may try to clean and rebuild the static libraries in llvm_mode.
You will need to init the git submodules for the project (tlsh, mvptree, containers).
Hope this helps

[lcyfrank]

I add -lstdc++ in the Makefile and rebuild, then solved it.

[rnatella]

Great, thanks for the information