heads/Makefile.nerf

# Targets specific for the NERF firmware
#

# this assumes that we've already made the edk2 things, via
# edk2.intermediate or something like that.
EDK2_DIR := $(build)/$(edk2_dir)/BaseTools/BinWrappers/PosixLike


# build/edk2-UDK2017/Build/MdeModule/DEBUG_GCC5/X64/MdeModulePkg/Core/Dxe/DxeMain/OUTPUT
# wtf edk2 doesn't hve a way to turn the inf file into an executable?
# this build system sucks

RuntimeArchProtocolGuid := { 0xb7dfb4e1, 0x052f, 0x449f, { 0x87, 0xbe, 0x98, 0x18, 0xfc, 0x91, 0xb7, 0x33 }}
AcpiTableProtocolGuid := { 0xFFE06BDD, 0x6107, 0x46A6, { 0x7B, 0xB2, 0x5A, 0x9C, 0x7E, 0xC5, 0x27, 0x5C }}


dxe-y += DxeCore
DxeCore-filetype := EFI_FV_FILETYPE_DXE_CORE
DxeCore-guid := D6A2CB7F-6A18-4E2F-B43B-9920A733700A 

dxe-y += RuntimeDxe
RuntimeDxe-depex := TRUE
RuntimeDxe-guid := B601F8C4-43B7-4784-95B1-F4226CB40CEE

dxe-y += AcpiTableDxe
AcpiTableDxe-guid := 9622E42C-8E38-4a08-9E8F-54F784652F6B
AcpiTableDxe-depex := $(RuntimeArchProtocolGuid)

dxe-y += AcpiPlatform
AcpiPlatform-guid := cb933912-df8f-4305-b1f9-7b44fa11395c
AcpiPlatform-depex := $(RuntimeArchProtocolGuid) AND $(AcpiTableProtocolGuid)


dxe-y += Linux
Linux-file := $(build)/$(linux_dir)/arch/x86/boot/bzImage
Linux-version := $(linux-version)
Linux-guid := DECAFBAD-6548-6461-732d-2f2d4e455246
Linux-depex := $(RuntimeArchProtocolGuid) AND $(AcpiTableProtocolGuid)


dxe-y += Initrd
Initrd-file := initrd.cpio.xz
Initrd-filetype := EFI_FV_FILETYPE_FREEFORM
Initrd-guid := 74696e69-6472-632e-7069-6f2f62696f73
Initrd-sectiontype := EFI_SECTION_RAW

#$(build)/$(linux_dir)/arch/x86/boot/bzImage: linux.intermediate

%.dep:
	$(EDK2_DIR)/GenDepex \
		-t DXE_DRIVER \
		-o $@ \
		-e '$($*-depex)'

%.dep.sec: %.dep
	$(EDK2_DIR)/GenSec \
		-S EFI_SECTION_DXE_DEPEX \
		-o $@ \
		$<

%.name.sec:
	$(EDK2_DIR)/GenSec \
		-S EFI_SECTION_USER_INTERFACE \
		-o "$@" \
		-n "$*"

%.ver.sec:
	$(EDK2_DIR)/GenSec \
		-S EFI_SECTION_VERSION \
		-o "$@" \
		-n "$(or $($*-version),1.0)"


define build-ffs =
$1.ffs: $1.file.sec $1.ver.sec $1.name.sec \
	$(if $($1-depex),$1.dep.sec) \

	$(EDK2_DIR)/GenFfs \
		-t $(or $($1-filetype),EFI_FV_FILETYPE_DRIVER) \
		-g $($1-guid) \
		--align 64K \
		-o $$@ \
		$$(addprefix -i ,$$^)

$1.file.sec: \
	$(or $($1-file),$(build)/$(edk2_dir)/Build/MdeModule/DEBUG_GCC5/X64/$1.efi)

	$(EDK2_DIR)/GenSec \
		-S $(or $($1-sectiontype),EFI_SECTION_PE32) \
		-o $$@ \
		$$^

# add a dependency on the edk2 module if we are picking up an
# edk2 build DXEexecutable.
ifndef $($1-file)
$(build)/$(edk2_dir)/Build/MdeModule/DEBUG_GCC5/X64/$1.efi: edk2.intermediate
endif

endef

# For everything that we will include in our DXE filesystem, we
# have to instatiate targets for the ffs and file sections.
# If there is no DEPEX defined, do not create a depex file dependency
$(call map,build-ffs,$(dxe-y))

$(build)/$(linux_dir)/arch/x86/boot/bzImage: linux.intermediate


# Generate a firmware file with a well known guid

# If you have to fit within the normal UEFI image, the volume is
# limited to 0x47 blocks.
#
# But you can also replace the entire region from 0x310000
# up to PEI at 0xE40000, which leaves us almost 11 MB of space.
nerf.vol: $(addsuffix .ffs,$(dxe-y)) blobs/r630/acpi-data.ffs
	$(EDK2_DIR)/GenFv \
		--numberblock 0xB3 \
		--blocksize 0x10000 \
		--FvNameGuid 4652454e-482f-6165-6473-2f4c696e7578 \
		-o $@ \
		$(addprefix -f ,$^)
	@head -2 $@.txt
	-$(RM) $@.txt $@.map

# You must provide your own r630.rom as input for the ME and PEI sections.
# the ifd is only the first 64k, but we take all the way to the ME region
# and unlock the IFD (from coreboot) to allow flashrom to write to the ROM.
# ifdtool -u blobs/r630/ifd.bin && mv blobs/r630/ifd.bin.new blobs/r630/ifd.bin
blobs/r630/me.bin: r630.rom
	dd < $< bs=$$[0x10000] skip=$$[0x02] count=$$[0x2F] > $@
blobs/r630/pei.bin: r630.rom
	dd < $< bs=$$[0x10000] skip=$$[0xE4] count=$$[0x1C] > $@

nerf-r630.rom: \
		blobs/r630/ifd.bin  \
		blobs/r630/me.bin \
		nerf.vol \
		blobs/r630/pei.bin \

	cat $^ > $@
	@if [ `stat -c'%s' $@` -ne 16777216 ]; then \
		echo -n >&2 "$@ SHOULD BE 16MB. size "; \
		stat -c'%s' $@ >&2 ; \
		mv $@ $@.bad; \
		exit 1; \
	fi

#
# Generate a compressed section
# LZMA guid is EE4E5898-3914-4259-9D6E-DC7BD79403CF
# Embedded filesystem is 8C8CE578-8A3D-4F1C-9935-896185C32DD3
#
acpi-lz.ffs: blobs/r630/acpi-data.ffs
	$(EDK2_DIR)/GenFfs \
		-t EFI_FV_FILETYPE_FIRMWARE_VOLUME_IMAGE \
		-g 8C8CE578-8A3D-4F1C-9935-896185C32DD3 \
		-o $<.ffs.fv \
		-a 16 \
		-i $<
	$(EDK2_DIR)/LzmaCompress \
		-e \
		-q \
		-o $<.fv.lz \
		$<.fv
	$(EDK2_DIR)/GenSec \
		-s EFI_SECTION_GUID_DEFINED \
		-g EE4E5898-3914-4259-9D6E-DC7BD79403CF \
		-r PROCESSING_REQUIRED \
		-o $<.fv.lz.sec \
		$<.fv.lz
	$(EDK2_DIR)/GenFfs \
		-t EFI_FV_FILETYPE_FIRMWARE_VOLUME_IMAGE \
		-g 8C8CE578-8A3D-4F1C-9935-896185C32DD3 \
		-i $<.fv.lz.sec \
		-o $@


nerf.intermediate: nerf-r630.rom