[cfe-dev] -fsanitize=undefined and shared libraries

[zapadinsky]

Sorry for bringing this thread up again...
I've updated clang and compiler-rt to current trunk. Now I have this error
trying to link against libMyLib.so which was linked with -fsanitize=integer
switch: 

clang++ -fsanitize=integer ... -lMyLib -o ...
/.../libMyLib.so: undefined reference to `__mulodi4'
clang: error: linker command failed with exit code 1 (use -v to see
invocation)

I'm trying to localize the problem but have no big progress for now. It is
not reproduced on a simple shared lib project. Any ideas? Without -fsanitize
all works fine



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