[llvm-dev] Compiling program with dfsan at IR

[Archa . via llvm-dev]

Hi,

I am trying to instrument a small program with dfsan at IR and then compile
it. But I end up with undefined reference errors.

Steps taken:
1.Convert toy program to .bc
2. IR pass to insert dfsan calls
3.opt -dfsan on resultant bitcode from step 2
4. llc step3.bc -o step4.s
5. gcc step.s -o step5.o

I get error  "undefined reference to `__dfsan_arg_tls' " and so forth for
all functions defined.
Is there something I am missing or doing wrong in my steps.

Thanks
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