For baremetal targets that don't support FILE, this version of printf just writes directly to a function provided by a vendor. To do this both printf and vprintf were moved to /generic (vprintf since they need the same flags and cmake gets funky about setting variables in one file and reading them in another).
LLVM libc ========= This directory and its subdirectories contain source code for llvm-libc, a retargetable implementation of the C standard library. LLVM is open source software. You may freely distribute it under the terms of the license agreement found in LICENSE.txt.