Using libc for UEFI

Using the UEFI C library

Once you have finished building the UEFI C library it can be used to run libc or libm functions inside of UEFI Images. Currently, not all C standard functions are supported in UEFI. Consult the list of supported functions for a comprehensive list.

Note

LLVM-libc support for UEFI is currently in the early bring-up phase. For the current source of truth on implemented functions, please refer to libc/config/uefi/entrypoints.txt in the source tree.