Just to follow up one more time on this specific point: > hello. In your stack traces, I see libgcc_s.so.1.
Yes, I see that as well. I posted the clang command line used to build that tiny "does executables work" program, and there is no mention of libgcc_s anywhere, so I'm not sure what I as a user should do differently to use the thread sanitizer feature. > Is there a comparable library clang should be using instead of > a library which, on the face of it, looks very gcc specific? I do not know. In this context I'm trying to stick to being a user, and try to avoid crawling into the configury setup of clang (in pkgsrc, in this case). I already have enough on my plate... Hence my earlier question whether we have more up-to-date information about the implementation status for the various sanitizers for our different C compilers. > If there is, can you use that with different results? Again, I don't know. I'm just trying to use the most recent version of clang and LLVM out of pkgsrc with the thread sanitizer feature. If, indeed, there is breakage in that feature in clang on NetBSD, fixing that is most probably more than I'm capable of. Regards, - HÃ¥vard