# global helper variables
T := $(CURDIR)

# PLATFORM is now deprecated, just reserve for compatability
ifdef PLATFORM
$(warning PLATFORM is deprecated, pls use BOARD instead)
endif
PLATFORM ?= uefi

# Backward-compatibility for PLATFORM=(sbl|uefi)
# * PLATFORM=sbl is equivalent to BOARD=apl-mrb
# * PLATFORM=uefi is equivalent to BOARD=apl-nuc (i.e. NUC6CAYH)
ifeq ($(PLATFORM),sbl)
BOARD ?= apl-mrb
else ifeq ($(PLATFORM),uefi)
BOARD ?= apl-nuc
endif
undefine PLATFORM

ifndef BOARD
$(error BOARD must be set (apl-mrb, apl-nuc, dnv-cb2, nuc6cayh)
endif

ifeq ($(BOARD),apl-nuc)
FIRMWARE ?= uefi
else ifeq ($(BOARD),nuc6cayh)
FIRMWARE ?= uefi
endif
FIRMWARE ?= sbl

RELEASE ?= 0

O ?= build
ROOT_OUT := $(shell mkdir -p $(O);cd $(O);pwd)
HV_OUT := $(ROOT_OUT)/hypervisor
EFI_OUT := $(ROOT_OUT)/efi-stub
DM_OUT := $(ROOT_OUT)/devicemodel
TOOLS_OUT := $(ROOT_OUT)/tools
DOC_OUT := $(ROOT_OUT)/doc
BUILD_VERSION ?=
BUILD_TAG ?=
export TOOLS_OUT

.PHONY: all hypervisor devicemodel tools doc
all: hypervisor devicemodel tools

hypervisor:
	make -C $(T)/hypervisor HV_OBJDIR=$(HV_OUT) BOARD=$(BOARD) FIRMWARE=$(FIRMWARE) RELEASE=$(RELEASE) clean
	make -C $(T)/hypervisor HV_OBJDIR=$(HV_OUT) BOARD=$(BOARD) FIRMWARE=$(FIRMWARE) RELEASE=$(RELEASE)
ifeq ($(FIRMWARE),uefi)
	echo "building hypervisor as EFI executable..."
	make -C $(T)/efi-stub HV_OBJDIR=$(HV_OUT) EFI_OBJDIR=$(EFI_OUT)
endif

sbl-hypervisor:
	@mkdir -p $(HV_OUT)-sbl
	make -C $(T)/hypervisor HV_OBJDIR=$(HV_OUT)-sbl BOARD=apl-mrb FIRMWARE=sbl RELEASE=$(RELEASE) clean
	make -C $(T)/hypervisor HV_OBJDIR=$(HV_OUT)-sbl BOARD=apl-mrb FIRMWARE=sbl RELEASE=$(RELEASE)

devicemodel: tools
	make -C $(T)/devicemodel DM_OBJDIR=$(DM_OUT) clean
	make -C $(T)/devicemodel DM_OBJDIR=$(DM_OUT) DM_BUILD_VERSION=$(BUILD_VERSION) DM_BUILD_TAG=$(BUILD_TAG)

tools:
	mkdir -p $(TOOLS_OUT)
	make -C $(T)/tools OUT_DIR=$(TOOLS_OUT) RELEASE=$(RELEASE)

doc:
	make -C $(T)/doc html BUILDDIR=$(DOC_OUT)

.PHONY: clean
clean:
	make -C $(T)/tools OUT_DIR=$(TOOLS_OUT) clean
	make -C $(T)/doc BUILDDIR=$(DOC_OUT) clean
	rm -rf $(ROOT_OUT)

.PHONY: install
install: hypervisor-install devicemodel-install tools-install

hypervisor-install:
ifeq ($(FIRMWARE),sbl)
	make -C $(T)/hypervisor HV_OBJDIR=$(HV_OUT) BOARD=$(BOARD) FIRMWARE=$(FIRMWARE) RELEASE=$(RELEASE) install
endif
ifeq ($(FIRMWARE),uefi)
	make -C $(T)/hypervisor HV_OBJDIR=$(HV_OUT) BOARD=$(BOARD) FIRMWARE=$(FIRMWARE) RELEASE=$(RELEASE)
	make -C $(T)/efi-stub HV_OBJDIR=$(HV_OUT) EFI_OBJDIR=$(EFI_OUT) all install
endif

sbl-hypervisor-install:
	make -C $(T)/hypervisor HV_OBJDIR=$(HV_OUT)-sbl BOARD=apl-mrb FIRMWARE=sbl RELEASE=$(RELEASE) install

devicemodel-install:
	make -C $(T)/devicemodel DM_OBJDIR=$(DM_OUT) install

tools-install:
	make -C $(T)/tools OUT_DIR=$(TOOLS_OUT) RELEASE=$(RELEASE) install