How to write output of a backend to a memory buffer instead of a into a file?

Right now, I am using


to write the output of a backend to a file. How can I tell LLVM to write into a memory buffer instead?

Look at addPassesToEmitMC. One example would be its usage in MCJIT
(lib/ExecutionEngine/MCJIT/MCJIT.cpp), which indeed emits the binary into
memory and loads it from there.