[llvm-dev] How to add new arch for llvm-cov show?

[xuruobin via llvm-dev]

Hi all,

I'm trying to support llvm-cov for a new architecture and I have successfully built compiler-rt for my arch. Following steps shown in https://clang.llvm.org/docs/SourceBasedCodeCoverage.html , I encountered an error for the last step(step of llvm-cov show). 
The command line was (supposed my arch is XXXX)

"llvm-cov show -arch=XXXX ./foo -instr-profile=foo.profdata"

and the error was

"Failed to load coverage: No object file for requested architecture."

I think I should add my arch information to somewhere(maybe an llvm-cov support list?) but I don't know where to add these information. Can someone give me some suggestions?

Best Regards,
Ruobin.