#
# Copyright (c) 2011, Intel Corporation
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RELEASE:=0
HV_OBJDIR:=build
HV_FILE:=acrn
EFI_OBJDIR:=$(HV_OBJDIR)/bsp/uefi/efi
C_SRCS = boot.c pe.c malloc.c
ACRN_OBJS := $(patsubst %.c,$(EFI_OBJDIR)/%.o,$(C_SRCS))
INCLUDE_PATH += ../include/bsp/

OBJCOPY=objcopy

HOST  = $(shell $(CC) -dumpmachine | sed "s/\(-\).*$$//")
ARCH := $(shell $(CC) -dumpmachine | sed "s/\(-\).*$$//")

ifeq ($(ARCH),x86_64)
	LIBDIR := $(shell if [ -d /usr/lib64 ]; then echo /usr/lib64; \
			else if [ -d /usr/lib ]; then echo /usr/lib; fi ; fi;)
	FORMAT=efi-app-x86-64
else
	ARCH=ia32
	LIBDIR=/usr/lib32
	FORMAT=efi-app-ia32
endif

INCDIR := /usr/include

# gnuefi sometimes installs these under a gnuefi/ directory, and sometimes not
ifneq ("$(wildcard $(LIBDIR)/gnuefi/crt0-efi-$(ARCH).o)","")
	CRT0 := $(LIBDIR)/gnuefi/crt0-efi-$(ARCH).o
	LDSCRIPT := $(LIBDIR)/gnuefi/elf_$(ARCH)_efi.lds
else
	CRT0 := $(LIBDIR)/crt0-efi-$(ARCH).o
	LDSCRIPT := $(LIBDIR)/elf_$(ARCH)_efi.lds
endif



CFLAGS=-I. -I.. -I$(INCDIR)/efi -I$(INCDIR)/efi/$(ARCH) \
		-DEFI_FUNCTION_WRAPPER -fPIC -fshort-wchar -ffreestanding \
		-Wall -I../fs/ -D$(ARCH)

ifeq ($(ARCH),ia32)
	ifeq ($(HOST),x86_64)
		CFLAGS += -m32
	endif
endif
ifeq ($(ARCH),x86_64)
	CFLAGS += -mno-red-zone
endif

LDFLAGS=-T $(LDSCRIPT) -Bsymbolic -shared -nostdlib -znocombreloc \
		-L$(LIBDIR) $(CRT0)
EFIBIN=$(HV_OBJDIR)/$(HV_FILE).efi
BOOT=$(EFI_OBJDIR)/boot.efi

CONF_FILE=$(CURDIR)/../clearlinux/acrn.conf

all: $(EFIBIN)
	$(OBJCOPY)  --add-section .hv="$(HV_OBJDIR)/$(HV_FILE).bin"  --change-section-vma .hv=0x6e000 --set-section-flags .hv=alloc,data,contents,load  --section-alignment 0x1000 $(EFI_OBJDIR)/boot.efi  $(EFIBIN)

install: $(EFIBIN) install-conf
	install -D $(EFIBIN) $(DESTDIR)/usr/share/acrn/$(HV_FILE).efi

$(EFIBIN): $(BOOT)

$(EFI_OBJDIR)/boot.efi: $(EFI_OBJDIR)/boot.so

$(EFI_OBJDIR)/boot.so: $(ACRN_OBJS) $(FS)
	$(LD) $(LDFLAGS) -o $@ $^  -lgnuefi -lefi $(shell $(CC) $(CFLAGS) -print-libgcc-file-name)

install-conf: $(CONF_FILE)
	install -d $(DESTDIR)/usr/share/acrn/demo
	install -t $(DESTDIR)/usr/share/acrn/demo -m 644 $^

clean:
	rm -f $(BOOT) $(HV_OBJDIR)/$(HV_FILE).efi $(EFI_OBJDIR)/boot.so $(ACRN_OBJS) $(FS)

$(EFI_OBJDIR)/%.o:%.S
	[ ! -e $@ ] && mkdir -p $(dir $@); \
	$(CC) $(CFLAGS)   -c -o $@ $<

$(EFI_OBJDIR)/%.o: %.c
	[ ! -e $@ ] && mkdir -p $(dir $@); \
	$(CC) $(patsubst %, -I%, $(INCLUDE_PATH)) -I. -c $(CFLAGS) $(ARCH_CFLAGS) $< -o $@

%.efi: %.so
	$(OBJCOPY) -j .text -j .sdata -j .data -j .dynamic -j .dynsym -j .rel \
		-j .rela -j .reloc --target=$(FORMAT) $*.so $@