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The ordinary small code model for x86_64 cannot be used in UEFI, since it assumes the executable is loaded in the first 2 GB of memory. Therefore, we use the large model instead, which can execute anywhere, but uses absolute 64-bit wide quantities for all symbol references, which is costly in terms of code size. So switch to the PIE small code model, this uses 32-bit relative references where possible, but does not make any assumptions about the load address (i.e., all absolute symbol references are 64-bits wide). Note that, due to the 'protected' visibility pragma introduced in an earlier patch, there is no need for the EDK2 build system to deal with GOT related ELF relocation types. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Reviewed-by: Jordan Justen <jordan.l.justen@intel.com> Tested-by: Laszlo Ersek <lersek@redhat.com> Tested-By: Liming Gao <liming.gao@intel.com> Reviewed-by: Liming Gao <liming.gao@intel.com>
This directory contains the template files for the next generation of the EDK II Build infrastructure. These files will be copied into the WORKSPACE's Conf directory if and only if the target files do not exist. These files may be updated frequently. The XMLSchema directory contains the EDK II Packaging XML definitions. The schema may change in the future. It differs somewhat from the early versions of the XML Schema.