BMOSP/build.py

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import os
import shutil
import subprocess
import time
from multiprocessing import Pool
CC = "g++"
ARCH_FLAGS = "-m64 -march=x86-64 -mabi=sysv -mno-80387 -mno-red-zone -mcmodel=kernel -MMD -MP"
WARN_FLAGS = "-Wall -Wextra"
STANDART_FLAGS = "-std=gnu11"
PROTECT_FLAGS = "-O0 -pipe -ffreestanding -fno-stack-protector -fno-lto -fno-stack-check -fno-PIC -fno-PIE"
CHARSET_FLAGS = "-finput-charset=UTF-8 -fexec-charset=cp1251"
LIBS_FLAGS = "-Ilimine -Iinclude"
def find_files(directory, extensions):
file_list = []
for root, dirs, files in os.walk(directory):
for file in files:
if any(file.endswith(extension) for extension in extensions):
file_list.append(os.path.join(root, file))
return file_list
def compile(file: str):
output_file = file.replace('/', '_')
obj_file = f"bin/{output_file}.o"
cmd = f"{CC} {WARN_FLAGS} {PROTECT_FLAGS} {ARCH_FLAGS} {CHARSET_FLAGS} {LIBS_FLAGS} -c {file} -o {obj_file}"
print(cmd)
os.system(cmd)
return obj_file
def compile_all():
file_list = find_files("kernel/", [".c", ".cpp", ".s"])
with Pool() as pool:
results = pool.map(compile, file_list)
while not all(results):
print(results)
time.sleep(1)
print(results)
cmd = f"ld -nostdlib -static -m elf_x86_64 -z max-page-size=0x1000 -T configs/linker.ld -o kernel.elf {' '.join(results)}"
print(cmd)
os.system(cmd)
def check_limine():
if not os.path.isdir("limine"):
subprocess.run(["git", "clone", "https://github.com/limine-bootloader/limine.git", "--branch=v5.x-branch-binary", "--depth=1"])
else:
os.chdir("limine")
subprocess.run(["git", "pull"])
os.chdir("..")
os.chdir("limine")
subprocess.run(["make"])
os.chdir("..")
def check_tools():
required_tools = ["g++", "xorriso", "make", "mtools"]
missing_tools = []
for tool in required_tools:
if shutil.which(tool) is None:
missing_tools.append(tool)
if len(missing_tools) > 0:
subprocess.run(["sudo", "apt", "install"] + missing_tools)
def create_iso(IMAGE_NAME):
subprocess.run(["rm", "-rf", "iso_root"])
subprocess.run(["mkdir", "-p", "iso_root"])
subprocess.run(["cp", "-v", "iso_root/"])
subprocess.run(["cp", "-v", "kernel.elf",
"configs/limine.cfg", "limine/limine-bios.sys",
"limine/limine-bios-cd.bin", "limine/limine-uefi-cd.bin",
"iso_root/"])
subprocess.run(["mkdir", "-p", "iso_root/EFI/BOOT"])
subprocess.run(["cp", "-v", "limine/BOOTX64.EFI", "iso_root/EFI/BOOT/"])
subprocess.run(["cp", "-v", "limine/BOOTIA32.EFI", "iso_root/EFI/BOOT/"])
subprocess.run(["xorriso", "-as", "mkisofs", "-b", "limine-bios-cd.bin",
"-no-emul-boot", "-boot-load-size", "4", "-boot-info-table",
"--efi-boot", "limine-uefi-cd.bin",
"-efi-boot-part", "--efi-boot-image", "--protective-msdos-label",
"iso_root", "-o", IMAGE_NAME+".iso"])
subprocess.run(["./limine/limine", "bios-install", IMAGE_NAME+".iso"])
subprocess.run(["rm", "-rf", "iso_root"])
def create_hdd(IMAGE_NAME):
subprocess.run(["rm", "-f", IMAGE_NAME+".hdd"])
subprocess.run(["dd", "if=/dev/zero", "bs=1M", "count=0", "seek=64", "of="+IMAGE_NAME+".hdd"])
subprocess.run(["sgdisk", IMAGE_NAME+".hdd", "-n", "1:2048", "-t", "1:ef00"])
subprocess.run(["./limine/limine", "bios-install", IMAGE_NAME+".hdd"])
subprocess.run(["mformat", "-i", IMAGE_NAME+".hdd@@1M"])
subprocess.run(["mmd", "-i", IMAGE_NAME+".hdd@@1M", "::/EFI", "::/EFI/BOOT"])
subprocess.run(["mcopy", "-i", IMAGE_NAME+".hdd@@1M",
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"kernel.elf", "configs/limine.cfg", "limine/limine-bios.sys", "::/"])
subprocess.run(["mcopy", "-i", IMAGE_NAME+".hdd@@1M",
"limine/BOOTX64.EFI", "limine/BOOTIA32.EFI", "::/EFI/BOOT"])
if __name__ == "__main__":
subprocess.run(["rm", "-rf", "bin"])
subprocess.run(["mkdir", "-p", "bin"])
if not os.path.isdir("ovmf"):
subprocess.run(["mkdir", "-p", "ovmf"])
os.chdir("ovmf")
subprocess.run(["curl", "-Lo", "OVMF.fd", "https://retrage.github.io/edk2-nightly/bin/RELEASEX64_OVMF.fd"])
os.chdir("..")
check_limine()
check_tools()
compile_all()
create_hdd("mseos")
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create_iso("mseos")
print("qemu-system-x86_64 -M q35 -m 8G -smp 8 -bios ovmf/OVMF.fd -hda mseos.hdd")