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#
# ========================================================
#
# NeBoot
# Date Added: 08/11/2023
# Copyright 2024, Amlal El Mahrouss, all rights reserved.
#
# ========================================================
#
CC=aarch64-elf-gcc
AS=aarch64-elf-as
COREBOOT=core-boot.elf
FIRMWARE=boot.rom
STAGE2=bootstg2.rom
FLAGS=-c -D__COMPILE_ARM64__ -I../../ -Wall -c -nostdlib -ffreestanding -fno-builtin \
-D__BSTRICT__ -D__BDEBUG__
C_SRC=$(wildcard *.c) $(wildcard ../*.c) -c
AS_FLAGS= -c -I../../
LD=aarch64-elf-ld
OBJ=*.o
FLAGS_LD= --script=script.lds -o core-boot.elf -nostdlib
OBJCOPY=aarch64-elf-objcopy
EMU=qemu-system-aarch64
EMU_FLAGS=-M virt -cpu cortex-a57 -bios $(FIRMWARE) -m 256M -d int -smp 2
WAIT=sleep 1
.PHONY: all
all: firmware-link
@echo "[NeBoot] build done."
.PHONY: firmware-link
firmware-link: firmware-compile
$(LD) $(OBJ) $(FLAGS_LD)
.PHONY: rom
rom:
qemu-img create -f qcow2 epm.img 256M
qemu-img create -f raw bootstg2.rom 64M
$(OBJCOPY) --strip-all -O binary $(COREBOOT) $(FIRMWARE)
# compile firmware
.PHONY: firmware-compile
firmware-compile:
$(CC) $(FLAGS) $(C_SRC)
$(AS) arm64-start-context.S -o arm64-start-context.o
$(AS) arm64-boot.S -o arm64-boot.o
# launch qemu rule
.PHONY: run
run:
$(EMU) $(EMU_FLAGS)
# launch qemu with attached debugger
.PHONY: run-dbg
run-dbg:
$(EMU) -s -S $(EMU_FLAGS)
# remove object files
.PHONY: clean
clean:
rm -f $(wildcard *.o) $(wildcard *.elf) $(wildcard *.rom) $(wildcard *.epm)
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