mirror of
https://github.com/cirosantilli/linux-kernel-module-cheat.git
synced 2026-01-13 20:12:26 +00:00
104 lines
4.2 KiB
Python
Executable File
104 lines
4.2 KiB
Python
Executable File
#!/usr/bin/env python3
|
|
|
|
import os
|
|
import pathlib
|
|
import subprocess
|
|
|
|
import common
|
|
|
|
class Gem5Component(common.Component):
|
|
def add_parser_arguments(self, parser):
|
|
parser.add_argument(
|
|
'extra_scons_args',
|
|
default=[],
|
|
metavar='extra-scons-args',
|
|
nargs='*'
|
|
)
|
|
|
|
def do_build(self, args):
|
|
build_dir = self.get_build_dir(args)
|
|
binaries_dir = os.path.join(common.gem5_system_dir, 'binaries')
|
|
disks_dir = os.path.join(common.gem5_system_dir, 'disks')
|
|
os.makedirs(binaries_dir, exist_ok=True)
|
|
os.makedirs(disks_dir, exist_ok=True)
|
|
if args.gem5_source_dir is None:
|
|
if not os.path.exists(os.path.join(common.gem5_src_dir, '.git')):
|
|
if common.gem5_src_dir == common.gem5_default_src_dir:
|
|
raise Exception('gem5 submodule not checked out')
|
|
common.run_cmd([
|
|
'git',
|
|
'-C', common.gem5_default_src_dir,
|
|
'worktree', 'add',
|
|
'-b', os.path.join('wt', args.gem5_build_id),
|
|
common.gem5_src_dir
|
|
])
|
|
if args.verbose:
|
|
verbose = ['--verbose']
|
|
else:
|
|
verbose = []
|
|
if args.arch == 'x86_64':
|
|
dummy_img_path = os.path.join(disks_dir, 'linux-bigswap2.img')
|
|
with open(dummy_img_path, 'wb') as dummy_img_file:
|
|
zeroes = b'\x00' * (2 ** 16)
|
|
for i in range(2 ** 10):
|
|
dummy_img_file.write(zeroes)
|
|
common.run_cmd(['mkswap', dummy_img_path])
|
|
with open(os.path.join(binaries_dir, 'x86_64-vmlinux-2.6.22.9'), 'w'):
|
|
# This file must always be present, despite --kernel overriding that default and selecting the kernel.
|
|
# I'm not even joking. No one has ever built x86 gem5 without the magic dist dir present.
|
|
pass
|
|
elif args.arch == 'arm' or args.arch == 'aarch64':
|
|
gem5_system_src_dir = os.path.join(common.gem5_src_dir, 'system')
|
|
|
|
# dtb
|
|
dt_src_dir = os.path.join(gem5_system_src_dir, 'arm', 'dt')
|
|
dt_build_dir = os.path.join(common.gem5_system_dir, 'arm', 'dt')
|
|
common.run_cmd(['make', '-C', dt_src_dir])
|
|
common.copy_dir_if_update_non_recursive(
|
|
srcdir=dt_src_dir,
|
|
destdir=dt_build_dir,
|
|
filter_ext='.dtb',
|
|
)
|
|
|
|
# Bootloader 32.
|
|
bootloader32_dir = os.path.join(gem5_system_src_dir, 'arm', 'simple_bootloader')
|
|
# TODO use the buildroot cross compiler here, and remove the dependencies from configure.
|
|
common.run_cmd(['make', '-C', bootloader32_dir])
|
|
# bootloader
|
|
common.cp(os.path.join(bootloader32_dir, 'boot_emm.arm'), binaries_dir)
|
|
|
|
# Bootloader 64.
|
|
bootloader64_dir = os.path.join(gem5_system_src_dir, 'arm', 'aarch64_bootloader')
|
|
# TODO cross_compile is ignored because the make does not use CC...
|
|
common.run_cmd(['make', '-C', bootloader64_dir])
|
|
common.cp(os.path.join(bootloader64_dir, 'boot_emm.arm64'), binaries_dir)
|
|
common.run_cmd(
|
|
(
|
|
[
|
|
'scons',
|
|
'-j', str(args.nproc),
|
|
'--ignore-style',
|
|
common.gem5_executable
|
|
] +
|
|
verbose +
|
|
args.extra_scons_args
|
|
),
|
|
cwd=common.gem5_src_dir,
|
|
extra_paths=[common.ccache_dir],
|
|
)
|
|
term_src_dir = os.path.join(common.gem5_src_dir, 'util/term')
|
|
m5term_build = os.path.join(term_src_dir, 'm5term')
|
|
common.run_cmd(['make', '-C', term_src_dir])
|
|
if os.path.exists(common.gem5_m5term):
|
|
# Otherwise common.cp would fail with "Text file busy" if you
|
|
# tried to rebuild while running m5term:
|
|
# https://stackoverflow.com/questions/16764946/what-generates-the-text-file-busy-message-in-unix/52427512#52427512
|
|
os.unlink(common.gem5_m5term)
|
|
common.cp(m5term_build, common.gem5_m5term)
|
|
|
|
def get_build_dir(self, args):
|
|
return common.gem5_build_dir
|
|
|
|
if __name__ == '__main__':
|
|
Gem5Component().build()
|