efi: Makefile: Export variables for use with EFI
authorSimon Glass <sjg@chromium.org>
Mon, 7 Nov 2016 15:47:07 +0000 (08:47 -0700)
committerAlexander Graf <agraf@suse.de>
Mon, 14 Nov 2016 22:24:03 +0000 (23:24 +0100)
commitbb1ae55948377b6b75d2230fd8fea69106477d81
tree5ce66dec9c8a1daea079f9d6ffb0f7a77d2af95d
parent5abd9137d5329e84827c265bc950287043eac636
efi: Makefile: Export variables for use with EFI

When building an EFI app we need three things:

   - start-up code
   - relocation code
   - link script

These are all different for each architecture. We also need special
compiler flags in some cases.

Add top-level Makefile variables for these along with documentation.

Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Alexander Graf <agraf@suse.de>
Makefile