Signed-off-by: Tom Rini <trini@konsulko.com>

Fix typo: change 'TPL' to 'VPL'.

Signed-off-by: Leo Yu-Chi Liang <ycliang@andestech.com>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

Signed-off-by: Tom Rini <trini@konsulko.com>

Create a Kconfig which indicates that EFI functionality is in use,
either as a client (EFI app / stub) or provider (EFI loader). This will
make it easier to share code between these two parts of U-Boot

Signed-off-by: Simon Glass <sjg@chromium.org>

The generic name 'EFI' would be more useful for common EFI features. At
present it just refers to the EFI app and stub, which is confusing.

Rename it to EFI_CLIENT

Signed-off-by: Simon Glass <sjg@chromium.org>

This directory was created when U-Boot gained the ability to run as an
EFI app in 2015. Since then the EFI-loader feature has been added.

The code in lib/efi is not actually used by the loader, so the name is
confusing.

Rename the directory to efi_client to indicate that it includes files
just for U-Boot being a client of EFI, i.e. the EFI app and stub.

Signed-off-by: Simon Glass <sjg@chromium.org>

This series from Ilias Apalodimas <ilias.apalodimas@linaro.org> largely
finishes the re-sync with the Linux Kernel v5.1 kbuild system.

Link: https://lore.kernel.org/r/20250627185723.342553-1-ilias.apalodimas@linaro.org

Our last sync with the kernel was 5.1. Even that was a partial one
as some patches from 4.x kernels were already missing making the
transition to a modern kbuild infeasible.

We are so out of sync now, that tracking the patches and backporting
them one by one makes little sense and it's going to take ages.

This is an attempt to sync up Makefile[.lib/.kbuild].
Unfortunately due to sheer amount of patches this is not easy to review,
but that's what we decided during a community call.

One of the biggest changes is get rid of partial linking entirely and
build .a archives isntead of .o.
We diaviate from the kernel on that. Instead of calling a custom script
to create the archive symbol table, we call ar with rcTP (isntead of
rcSTP) since we want a resulting archive that's sauble with the linker.

The only affected platforms are PPC ones. Unfortunately I don't have any
of them around to test, but the objdump of the resulting files --
arch/powerpc/lib/built-in.[oa] looks identical.

Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>

Signed-off-by: Tom Rini <trini@konsulko.com>