Makefile

# Copyright 2016 The Fuchsia Authors
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

ARCH		:= x86_64

EFI_TOOLCHAIN	:=
EFI_CC		:= $(EFI_TOOLCHAIN)gcc
EFI_LD		:= $(EFI_TOOLCHAIN)ld
EFI_OBJCOPY	:= $(EFI_TOOLCHAIN)objcopy
EFI_AR		:= $(EFI_TOOLCHAIN)ar

EFI_PATH	:= third_party/gnu-efi
EFI_LIB_PATHS	:= $(EFI_PATH)/$(ARCH)/lib $(EFI_PATH)/$(ARCH)/gnuefi out
EFI_INC_PATHS	:= $(EFI_PATH)/inc $(EFI_PATH)/inc/$(ARCH) $(EFI_PATH)/inc/protocol

EFI_CRT0	:= $(EFI_PATH)/$(ARCH)/gnuefi/crt0-efi-$(ARCH).o
EFI_LINKSCRIPT	:= $(EFI_PATH)/gnuefi/elf_$(ARCH)_efi.lds

EFI_CFLAGS	:= -fpic -fshort-wchar -fno-stack-protector -mno-red-zone
EFI_CFLAGS	+= -Wall
EFI_CFLAGS	+= -std=c99
EFI_CFLAGS	+= -ffreestanding -nostdinc -Iinclude -Isrc -Ithird_party/edk2 -Ithird_party/lk/include
EFI_CFLAGS	+= $(patsubst %,-I%,$(EFI_INC_PATHS))
EFI_CFLAGS	+= -DHAVE_USE_MS_ABI=1
EFI_CFLAGS	+= -ggdb

EFI_LDFLAGS	:= -nostdlib -znocombreloc -T $(EFI_LINKSCRIPT)
EFI_LDFLAGS	+= -shared -Bsymbolic
EFI_LDFLAGS	+= $(patsubst %,-L%,$(EFI_LIB_PATHS))

EFI_LIBS	:= -lstuff -lefi -lgnuefi

what_to_build::	all

# build rules and macros
include build/build.mk

# declare applications here
#$(call efi_app, hello, hello.c)
$(call efi_app, showmem, showmem.c)
$(call efi_app, fileio, fileio.c)
$(call efi_app, osboot, osboot.c netboot.c netifc.c inet6.c)
$(call efi_app, usbtest, usbtest.c)

ifneq ($(APP),)
	APP := out/$(APP).efi
else
	APP := out/osboot.efi
endif

LIB_SRCS := lib/goodies.c lib/loadfile.c lib/console-printf.c lib/string.c
LIB_SRCS += third_party/lk/src/printf.c

LIB_OBJS := $(patsubst %.c,out/%.o,$(LIB_SRCS))
DEPS += $(patsubst %.c,out/%.d,$(LIB_SRCS))

out/libstuff.a: $(LIB_OBJS)
	@mkdir -p $(dir $@)
	@echo archiving: $@
	$(QUIET)rm -f $@
	$(QUIET)ar rc $@ $^

out/BOOTx64.EFI: $(APP)
	@mkdir -p $(dir $@)
	$(QUIET)cp -f $^ $@

# generate a small IDE disk image for qemu
out/disk.img: $(APPS) out/BOOTx64.EFI
	@mkdir -p $(dir $@)
	$(QUIET)./build/mkdiskimg.sh $@
	@echo copying: $(APPS) README.txt to disk.img
	$(QUIET)mcopy -o -i out/disk.img@@1024K $(APPS) README.txt ::
	$(QUIET)mcopy -o -i out/disk.img@@1024K $(APPS) out/BOOTx64.EFI ::EFI/BOOT/

ALL += out/disk.img

-include $(DEPS)

# ensure gnu-efi gets built
$(EFI_CRT0):
	@echo building: gnu-efi
	$(QUIET)$(MAKE) -C $(EFI_PATH)

QEMU_OPTS := -cpu qemu64
QEMU_OPTS += -bios third_party/ovmf/OVMF.fd
QEMU_OPTS += -drive file=out/disk.img,format=raw,if=ide
QEMU_OPTS += -serial stdio

qemu:: all
	qemu-system-x86_64 $(QEMU_OPTS)

out/nbserver: src/nbserver.c
	@mkdir -p out
	@echo building nbserver
	$(QUIET)gcc -o out/nbserver -Isrc -Wall src/nbserver.c

all: $(ALL) out/nbserver

clean::
	rm -rf out

all-clean: clean
	make -C third_party/gnu-efi clean