mirror of
https://github.com/cirosantilli/linux-kernel-module-cheat.git
synced 2026-01-26 19:51:35 +01:00
1023 lines
41 KiB
Python
1023 lines
41 KiB
Python
#!/usr/bin/env python3
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import argparse
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import base64
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import collections
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import copy
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import datetime
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import distutils.file_util
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import glob
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import imp
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import itertools
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import json
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import multiprocessing
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import os
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import re
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import shlex
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import shutil
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import signal
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import stat
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import subprocess
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import sys
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import time
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import urllib
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import urllib.request
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import cli_function
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common = sys.modules[__name__]
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# Fixed parameters that don't depend on CLI arguments.
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consts = {}
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consts['repo_short_id'] = 'lkmc'
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# https://stackoverflow.com/questions/20010199/how-to-determine-if-a-process-runs-inside-lxc-docker
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consts['in_docker'] = os.path.exists('/.dockerenv')
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consts['root_dir'] = os.path.dirname(os.path.abspath(__file__))
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consts['data_dir'] = os.path.join(consts['root_dir'], 'data')
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consts['p9_dir'] = os.path.join(consts['data_dir'], '9p')
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consts['gem5_non_default_src_root_dir'] = os.path.join(consts['data_dir'], 'gem5')
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if consts['in_docker']:
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consts['out_dir'] = os.path.join(consts['root_dir'], 'out.docker')
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else:
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consts['out_dir'] = os.path.join(consts['root_dir'], 'out')
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consts['gem5_out_dir'] = os.path.join(consts['out_dir'], 'gem5')
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consts['kernel_modules_build_base_dir'] = os.path.join(consts['out_dir'], 'kernel_modules')
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consts['buildroot_out_dir'] = os.path.join(consts['out_dir'], 'buildroot')
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consts['gem5_m5_build_dir'] = os.path.join(consts['out_dir'], 'util', 'm5')
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consts['run_dir_base'] = os.path.join(consts['out_dir'], 'run')
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consts['crosstool_ng_out_dir'] = os.path.join(consts['out_dir'], 'crosstool-ng')
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consts['bench_boot'] = os.path.join(consts['out_dir'], 'bench-boot.txt')
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consts['packages_dir'] = os.path.join(consts['root_dir'], 'buildroot_packages')
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consts['kernel_modules_subdir'] = 'kernel_modules'
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consts['kernel_modules_src_dir'] = os.path.join(consts['root_dir'], consts['kernel_modules_subdir'])
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consts['userland_subdir'] = 'userland'
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consts['userland_src_dir'] = os.path.join(consts['root_dir'], consts['userland_subdir'])
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consts['userland_build_ext'] = '.out'
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consts['include_subdir'] = 'include'
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consts['include_src_dir'] = os.path.join(consts['root_dir'], consts['include_subdir'])
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consts['submodules_dir'] = os.path.join(consts['root_dir'], 'submodules')
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consts['buildroot_src_dir'] = os.path.join(consts['submodules_dir'], 'buildroot')
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consts['crosstool_ng_src_dir'] = os.path.join(consts['submodules_dir'], 'crosstool-ng')
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consts['crosstool_ng_supported_archs'] = set(['arm', 'aarch64'])
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consts['linux_src_dir'] = os.path.join(consts['submodules_dir'], 'linux')
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consts['linux_config_dir'] = os.path.join(consts['root_dir'], 'linux_config')
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consts['gem5_default_src_dir'] = os.path.join(consts['submodules_dir'], 'gem5')
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consts['rootfs_overlay_dir'] = os.path.join(consts['root_dir'], 'rootfs_overlay')
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consts['extract_vmlinux'] = os.path.join(consts['linux_src_dir'], 'scripts', 'extract-vmlinux')
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consts['qemu_src_dir'] = os.path.join(consts['submodules_dir'], 'qemu')
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consts['parsec_benchmark_src_dir'] = os.path.join(consts['submodules_dir'], 'parsec-benchmark')
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consts['ccache_dir'] = os.path.join('/usr', 'lib', 'ccache')
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consts['default_build_id'] = 'default'
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consts['arch_short_to_long_dict'] = collections.OrderedDict([
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('x', 'x86_64'),
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('a', 'arm'),
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('A', 'aarch64'),
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])
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consts['all_archs'] = [consts['arch_short_to_long_dict'][k] for k in consts['arch_short_to_long_dict']]
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consts['arch_choices'] = []
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for key in consts['arch_short_to_long_dict']:
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consts['arch_choices'].append(key)
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consts['arch_choices'].append(consts['arch_short_to_long_dict'][key])
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consts['default_arch'] = 'x86_64'
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consts['gem5_cpt_prefix'] = '^cpt\.'
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consts['sha'] = subprocess.check_output(['git', '-C', consts['root_dir'], 'log', '-1', '--format=%H']).decode().rstrip()
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consts['release_dir'] = os.path.join(consts['out_dir'], 'release')
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consts['release_zip_file'] = os.path.join(consts['release_dir'], 'lkmc-{}.zip'.format(consts['sha']))
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consts['github_repo_id'] = 'cirosantilli/linux-kernel-module-cheat'
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consts['asm_ext'] = '.S'
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consts['c_ext'] = '.c'
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consts['header_ext'] = '.h'
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consts['kernel_module_ext'] = '.ko'
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consts['obj_ext'] = '.o'
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consts['config_file'] = os.path.join(consts['data_dir'], 'config.py')
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consts['command_prefix'] = '+ '
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consts['magic_fail_string'] = b'lkmc_test_fail'
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consts['baremetal_lib_basename'] = 'lib'
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class LkmcCliFunction(cli_function.CliFunction):
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'''
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Common functionality shared across our CLI functions:
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* command timing
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* some common flags, e.g.: --arch, --dry-run, --verbose
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'''
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def __init__(self):
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super().__init__(config_file=common.consts['config_file'])
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self.add_argument(
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'-a', '--arch', choices=consts['arch_choices'], default=consts['default_arch'],
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help='CPU architecture.'
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)
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self.add_argument(
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'--dry-run',
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default=False,
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help='''\
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Print the commands that would be run, but don't run them.
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We aim display every command that modifies the filesystem state, and generate
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Bash equivalents even for actions taken directly in Python without shelling out.
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mkdir are generally omitted since those are obvious
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'''
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)
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self.add_argument(
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'-v', '--verbose', default=False, action='store_true',
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help='Show full compilation commands when they are not shown by default.'
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)
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def main(self, **kwargs):
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'''
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Time the main of the derived class.
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'''
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if not kwargs['dry_run']:
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start_time = time.time()
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kwargs.update(common.consts)
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kwargs = set_kwargs(kwargs)
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self.timed_main(**kwargs)
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if not kwargs['dry_run']:
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end_time = time.time()
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common.print_time(end_time - start_time)
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def timed_main(self, **kwargs):
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raise NotImplementedError()
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class BuildCliFunction(LkmcCliFunction):
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'''
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A CLI function with common facilities to build stuff, e.g.:
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* `--clean` to clean the build directory
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* `--nproc` to set he number of build threads
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'''
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def __init__(self):
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super().__init__()
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self.add_argument(
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'--clean',
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default=False,
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help='Clean the build instead of building.',
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),
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self.add_argument(
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'-j',
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'--nproc',
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default=multiprocessing.cpu_count(),
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type=int,
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help='Number of processors to use for the build.',
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)
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def clean(self, **kwargs):
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build_dir = self.get_build_dir(kwargs)
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if build_dir is not None:
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common.rmrf(build_dir)
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def build(self, **kwargs):
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'''
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Do the actual main build work.
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'''
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raise NotImplementedError()
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def get_build_dir(self, **kwargs):
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return None
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def timed_main(self, **kwargs):
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'''
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Parse CLI, and to the build based on it.
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The actual build work is done by do_build in implementing classes.
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'''
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if kwargs['clean']:
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self.clean(kwargs)
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else:
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self.build(**kwargs)
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class Newline:
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'''
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Singleton class. Can be used in print_cmd to print out nicer command lines
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with --key on the same line as "--key value".
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'''
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pass
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def add_args_gem5(parser):
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parser.add_argument(
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'--gem5-build-dir',
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help='''\
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Use the given directory as the gem5 build directory.
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'''
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)
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parser.add_argument(
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'-M', '--gem5-build-id',
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help='''\
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gem5 build ID. Allows you to keep multiple separate gem5 builds.
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'''
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)
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parser.add_argument(
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'--gem5-build-type', default='opt',
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help='gem5 build type, most often used for "debug" builds.'
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)
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parser.add_argument(
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'--gem5-source-dir',
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help='''\
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Use the given directory as the gem5 source tree. Ignore `--gem5-worktree`.
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'''
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)
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parser.add_argument(
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'-N', '--gem5-worktree',
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help='''\
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Create and use a git worktree of the gem5 submodule.
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See: https://github.com/cirosantilli/linux-kernel-module-cheat#gem5-worktree
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'''
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)
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def add_newlines(cmd):
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out = []
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for arg in cmd:
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out.extend([arg, common.Newline])
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return out
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def assert_crosstool_ng_supports_arch(arch):
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if arch not in common.crosstool_ng_supported_archs:
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raise Exception('arch not yet supported: ' + arch)
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def base64_encode(string):
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return base64.b64encode(string.encode()).decode()
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def write_string_to_file(path, string, mode='w'):
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if mode == 'a':
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redirect = '>>'
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else:
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redirect = '>'
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print_cmd("cat << 'EOF' {} {}\n{}\nEOF".format(redirect, path, string))
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if not common.dry_run:
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with open(path, 'a') as f:
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f.write(string)
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def cmd_to_string(cmd, cwd=None, extra_env=None, extra_paths=None):
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'''
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Format a command given as a list of strings so that it can
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be viewed nicely and executed by bash directly and print it to stdout.
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'''
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last_newline = ' \\\n'
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newline_separator = last_newline + ' '
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out = []
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if extra_env is None:
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extra_env = {}
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if cwd is not None:
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out.append('cd {} &&'.format(shlex.quote(cwd)))
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if extra_paths is not None:
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out.append('PATH="{}:${{PATH}}"'.format(':'.join(extra_paths)))
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for key in extra_env:
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out.append('{}={}'.format(shlex.quote(key), shlex.quote(extra_env[key])))
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cmd_quote = []
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newline_count = 0
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for arg in cmd:
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if arg == common.Newline:
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cmd_quote.append(arg)
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newline_count += 1
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else:
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cmd_quote.append(shlex.quote(arg))
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if newline_count > 0:
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cmd_quote = [' '.join(list(y)) for x, y in itertools.groupby(cmd_quote, lambda z: z == common.Newline) if not x]
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out.extend(cmd_quote)
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if newline_count == 1 and cmd[-1] == common.Newline:
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ending = ''
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else:
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ending = last_newline + ';'
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return newline_separator.join(out) + ending
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def copy_dir_if_update_non_recursive(srcdir, destdir, filter_ext=None):
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# TODO print rsync equivalent.
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os.makedirs(destdir, exist_ok=True)
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for basename in os.listdir(srcdir):
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src = os.path.join(srcdir, basename)
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if os.path.isfile(src):
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noext, ext = os.path.splitext(basename)
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if filter_ext is not None and ext == filter_ext:
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distutils.file_util.copy_file(
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src,
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os.path.join(destdir, basename),
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update=1,
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)
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def cp(src, dest):
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print_cmd(['cp', src, dest])
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if not common.dry_run:
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shutil.copy2(src, dest)
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def gem_list_checkpoint_dirs():
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'''
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List checkpoint directory, oldest first.
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'''
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prefix_re = re.compile(common.gem5_cpt_prefix)
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files = list(filter(lambda x: os.path.isdir(os.path.join(common.m5out_dir, x)) and prefix_re.search(x), os.listdir(common.m5out_dir)))
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files.sort(key=lambda x: os.path.getmtime(os.path.join(common.m5out_dir, x)))
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return files
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def get_argparse(default_args=None):
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'''
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Return an argument parser with common arguments set.
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:type default_args: Dict[str,str]
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:type argparse_args: Dict
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'''
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if default_args is None:
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default_args = {}
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if argparse_args is None:
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argparse_args = {}
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emulator_group = parser.add_mutually_exclusive_group(required=False)
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parser.add_argument(
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'-b', '--baremetal',
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help='''\
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Use the given baremetal executable instead of the Linux kernel.
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If the path is absolute, it is used as is.
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If the path is relative, we assume that it points to a source code
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inside baremetal/ and then try to use corresponding executable.
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'''
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)
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parser.add_argument(
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'--buildroot-build-id',
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default=consts['default_build_id'],
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help='Buildroot build ID. Allows you to keep multiple separate gem5 builds.'
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)
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parser.add_argument(
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'--buildroot-linux', default=False, action='store_true',
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help='Boot with the Buildroot Linux kernel instead of our custom built one. Mostly for sanity checks.'
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)
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parser.add_argument(
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'--crosstool-ng-build-id', default=consts['default_build_id'],
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help='Crosstool-NG build ID. Allows you to keep multiple separate crosstool-NG builds.'
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)
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parser.add_argument(
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'--docker', default=False, action='store_true',
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help='''\
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Use the docker download Ubuntu root filesystem instead of the default Buildroot one.
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'''
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)
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parser.add_argument(
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'-L', '--linux-build-id', default=consts['default_build_id'],
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help='Linux build ID. Allows you to keep multiple separate Linux builds.'
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)
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parser.add_argument(
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'--machine',
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help='''Machine type.
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QEMU default: virt
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gem5 default: VExpress_GEM5_V1
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See the documentation for other values known to work.
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'''
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)
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emulator_group.add_argument(
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'-g', '--gem5', default=False, action='store_true',
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help='Use gem5 instead of QEMU.'
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)
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parser.add_argument(
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'-n', '--run-id', default='0',
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help='''\
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ID for run outputs such as gem5's m5out. Allows you to do multiple runs,
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and then inspect separate outputs later in different output directories.
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'''
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)
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parser.add_argument(
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'-P', '--prebuilt', default=False, action='store_true',
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help='''\
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Use prebuilt packaged host utilities as much as possible instead
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of the ones we built ourselves. Saves build time, but decreases
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the likelihood of incompatibilities.
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'''
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)
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parser.add_argument(
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'--port-offset', type=int,
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help='''\
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Increase the ports to be used such as for GDB by an offset to run multiple
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instances in parallel. Default: the run ID (-n) if that is an integer, otherwise 0.
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'''
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)
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emulator_group.add_argument(
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'--qemu', default=False, action='store_true',
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help='''\
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Use QEMU as the emulator. This option exists in addition to --gem5
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to allow overriding configs from the CLI.
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'''
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)
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parser.add_argument(
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'-Q', '--qemu-build-id', default=consts['default_build_id'],
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help='QEMU build ID. Allows you to keep multiple separate QEMU builds.'
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)
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parser.add_argument(
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'--userland-build-id', default=None
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)
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def get_elf_entry(elf_file_path):
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readelf_header = subprocess.check_output([
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common.get_toolchain_tool('readelf'),
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'-h',
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elf_file_path
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])
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for line in readelf_header.decode().split('\n'):
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split = line.split()
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if line.startswith(' Entry point address:'):
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addr = line.split()[-1]
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break
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return int(addr, 0)
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def get_stats(stat_re=None, stats_file=None):
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if stat_re is None:
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stat_re = '^system.cpu[0-9]*.numCycles$'
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if stats_file is None:
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stats_file = common.stats_file
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stat_re = re.compile(stat_re)
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ret = []
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with open(stats_file, 'r') as statfile:
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for line in statfile:
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if line[0] != '-':
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cols = line.split()
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if len(cols) > 1 and stat_re.search(cols[0]):
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ret.append(cols[1])
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return ret
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def get_toolchain_prefix(tool, allowed_toolchains=None):
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buildroot_full_prefix = os.path.join(common.host_bin_dir, common.buildroot_toolchain_prefix)
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buildroot_exists = os.path.exists('{}-{}'.format(buildroot_full_prefix, tool))
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crosstool_ng_full_prefix = os.path.join(common.crosstool_ng_bin_dir, common.crosstool_ng_toolchain_prefix)
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crosstool_ng_exists = os.path.exists('{}-{}'.format(crosstool_ng_full_prefix, tool))
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host_tool = '{}-{}'.format(common.ubuntu_toolchain_prefix, tool)
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host_path = shutil.which(host_tool)
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if host_path is not None:
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host_exists = True
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host_full_prefix = host_path[:-(len(tool)+1)]
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else:
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host_exists = False
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host_full_prefix = None
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known_toolchains = {
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'crosstool-ng': (crosstool_ng_exists, crosstool_ng_full_prefix),
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'buildroot': (buildroot_exists, buildroot_full_prefix),
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'host': (host_exists, host_full_prefix),
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}
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if allowed_toolchains is None:
|
|
if common['baremetal'] is None:
|
|
allowed_toolchains = ['buildroot', 'crosstool-ng', 'host']
|
|
else:
|
|
allowed_toolchains = ['crosstool-ng', 'buildroot', 'host']
|
|
tried = []
|
|
for toolchain in allowed_toolchains:
|
|
exists, prefix = known_toolchains[toolchain]
|
|
tried.append('{}-{}'.format(prefix, tool))
|
|
if exists:
|
|
return prefix
|
|
raise Exception('Tool not found. Tried:\n' + '\n'.join(tried))
|
|
|
|
def get_toolchain_tool(tool, allowed_toolchains=None):
|
|
return '{}-{}'.format(common.get_toolchain_prefix(tool, allowed_toolchains), tool)
|
|
|
|
def github_make_request(
|
|
authenticate=False,
|
|
data=None,
|
|
extra_headers=None,
|
|
path='',
|
|
subdomain='api',
|
|
url_params=None,
|
|
**extra_request_args
|
|
):
|
|
if extra_headers is None:
|
|
extra_headers = {}
|
|
headers = {'Accept': 'application/vnd.github.v3+json'}
|
|
headers.update(extra_headers)
|
|
if authenticate:
|
|
headers['Authorization'] = 'token ' + os.environ['LKMC_GITHUB_TOKEN']
|
|
if url_params is not None:
|
|
path += '?' + urllib.parse.urlencode(url_params)
|
|
request = urllib.request.Request(
|
|
'https://' + subdomain + '.github.com/repos/' + github_repo_id + path,
|
|
headers=headers,
|
|
data=data,
|
|
**extra_request_args
|
|
)
|
|
response_body = urllib.request.urlopen(request).read().decode()
|
|
if response_body:
|
|
_json = json.loads(response_body)
|
|
else:
|
|
_json = {}
|
|
return _json
|
|
|
|
def log_error(msg):
|
|
print('error: {}'.format(msg), file=sys.stderr)
|
|
|
|
def make_build_dirs():
|
|
os.makedirs(common.buildroot_build_build_dir, exist_ok=True)
|
|
os.makedirs(common.gem5_build_dir, exist_ok=True)
|
|
os.makedirs(common.out_rootfs_overlay_dir, exist_ok=True)
|
|
|
|
def make_run_dirs():
|
|
'''
|
|
Make directories required for the run.
|
|
The user could nuke those anytime between runs to try and clean things up.
|
|
'''
|
|
os.makedirs(common.gem5_run_dir, exist_ok=True)
|
|
os.makedirs(common.p9_dir, exist_ok=True)
|
|
os.makedirs(common.qemu_run_dir, exist_ok=True)
|
|
|
|
def need_rebuild(srcs, dst):
|
|
if not os.path.exists(dst):
|
|
return True
|
|
for src in srcs:
|
|
if os.path.getmtime(src) > os.path.getmtime(dst):
|
|
return True
|
|
return False
|
|
|
|
def print_cmd(cmd, cwd=None, cmd_file=None, extra_env=None, extra_paths=None):
|
|
'''
|
|
Print cmd_to_string to stdout.
|
|
|
|
Optionally save the command to cmd_file file, and add extra_env
|
|
environment variables to the command generated.
|
|
|
|
If cmd contains at least one common.Newline, newlines are only added on common.Newline.
|
|
Otherwise, newlines are added automatically after every word.
|
|
'''
|
|
global dry_run
|
|
if type(cmd) is str:
|
|
cmd_string = cmd
|
|
else:
|
|
cmd_string = cmd_to_string(cmd, cwd=cwd, extra_env=extra_env, extra_paths=extra_paths)
|
|
print(common.command_prefix + cmd_string)
|
|
if cmd_file is not None:
|
|
with open(cmd_file, 'w') as f:
|
|
f.write('#!/usr/bin/env bash\n')
|
|
f.write(cmd_string)
|
|
st = os.stat(cmd_file)
|
|
os.chmod(cmd_file, st.st_mode | stat.S_IXUSR)
|
|
|
|
def print_time(ellapsed_seconds):
|
|
hours, rem = divmod(ellapsed_seconds, 3600)
|
|
minutes, seconds = divmod(rem, 60)
|
|
print("time {:02}:{:02}:{:02}".format(int(hours), int(minutes), int(seconds)))
|
|
|
|
def raw_to_qcow2(prebuilt=False, reverse=False):
|
|
if prebuilt or not os.path.exists(common.qemu_img_executable):
|
|
disable_trace = []
|
|
qemu_img_executable = common.qemu_img_basename
|
|
else:
|
|
# Prevent qemu-img from generating trace files like QEMU. Disgusting.
|
|
disable_trace = ['-T', 'pr_manager_run,file=/dev/null', common.Newline,]
|
|
qemu_img_executable = common.qemu_img_executable
|
|
infmt = 'raw'
|
|
outfmt = 'qcow2'
|
|
infile = common.rootfs_raw_file
|
|
outfile = common.qcow2_file
|
|
if reverse:
|
|
tmp = infmt
|
|
infmt = outfmt
|
|
outfmt = tmp
|
|
tmp = infile
|
|
infile = outfile
|
|
outfile = tmp
|
|
common.run_cmd(
|
|
[
|
|
qemu_img_executable, common.Newline,
|
|
] +
|
|
disable_trace +
|
|
[
|
|
'convert', common.Newline,
|
|
'-f', infmt, common.Newline,
|
|
'-O', outfmt, common.Newline,
|
|
infile, common.Newline,
|
|
outfile, common.Newline,
|
|
]
|
|
)
|
|
|
|
def resolve_args(defaults, args, extra_args):
|
|
if extra_args is None:
|
|
extra_args = {}
|
|
argcopy = copy.copy(args)
|
|
argcopy.__dict__ = dict(list(defaults.items()) + list(argcopy.__dict__.items()) + list(extra_args.items()))
|
|
return argcopy
|
|
|
|
def rmrf(path):
|
|
print_cmd(['rm', '-r', '-f', path])
|
|
if not common.dry_run and os.path.exists(path):
|
|
shutil.rmtree(path)
|
|
|
|
def run_cmd(
|
|
cmd,
|
|
cmd_file=None,
|
|
out_file=None,
|
|
show_stdout=True,
|
|
show_cmd=True,
|
|
extra_env=None,
|
|
extra_paths=None,
|
|
delete_env=None,
|
|
dry_run=False,
|
|
raise_on_failure=True,
|
|
**kwargs
|
|
):
|
|
'''
|
|
Run a command. Write the command to stdout before running it.
|
|
|
|
Wait until the command finishes execution.
|
|
|
|
:param cmd: command to run. common.Newline entries are magic get skipped.
|
|
:type cmd: List[str]
|
|
|
|
:param cmd_file: if not None, write the command to be run to that file
|
|
:type cmd_file: str
|
|
|
|
:param out_file: if not None, write the stdout and stderr of the command the file
|
|
:type out_file: str
|
|
|
|
:param show_stdout: wether to show stdout and stderr on the terminal or not
|
|
:type show_stdout: bool
|
|
|
|
:param extra_env: extra environment variables to add when running the command
|
|
:type extra_env: Dict[str,str]
|
|
|
|
:param dry_run: don't run the commands, just potentially print them. Debug aid.
|
|
:type dry_run: Bool
|
|
'''
|
|
if out_file is not None:
|
|
stdout = subprocess.PIPE
|
|
stderr = subprocess.STDOUT
|
|
else:
|
|
if show_stdout:
|
|
stdout = None
|
|
stderr = None
|
|
else:
|
|
stdout = subprocess.DEVNULL
|
|
stderr = subprocess.DEVNULL
|
|
if extra_env is None:
|
|
extra_env = {}
|
|
if delete_env is None:
|
|
delete_env = []
|
|
if 'cwd' in kwargs:
|
|
cwd = kwargs['cwd']
|
|
else:
|
|
cwd = None
|
|
env = os.environ.copy()
|
|
env.update(extra_env)
|
|
if extra_paths is not None:
|
|
path = ':'.join(extra_paths)
|
|
if 'PATH' in os.environ:
|
|
path += ':' + os.environ['PATH']
|
|
env['PATH'] = path
|
|
for key in delete_env:
|
|
if key in env:
|
|
del env[key]
|
|
if show_cmd:
|
|
print_cmd(cmd, cwd=cwd, cmd_file=cmd_file, extra_env=extra_env, extra_paths=extra_paths)
|
|
|
|
# Otherwise Ctrl + C gives:
|
|
# - ugly Python stack trace for gem5 (QEMU takes over terminal and is fine).
|
|
# - kills Python, and that then kills GDB: https://stackoverflow.com/questions/19807134/does-python-always-raise-an-exception-if-you-do-ctrlc-when-a-subprocess-is-exec
|
|
sigint_old = signal.getsignal(signal.SIGINT)
|
|
signal.signal(signal.SIGINT, signal.SIG_IGN)
|
|
|
|
# Otherwise BrokenPipeError when piping through | grep
|
|
# But if I do this_module, my terminal gets broken at the end. Why, why, why.
|
|
# https://stackoverflow.com/questions/14207708/ioerror-errno-32-broken-pipe-python
|
|
# Ignoring the exception is not enough as it prints a warning anyways.
|
|
#sigpipe_old = signal.getsignal(signal.SIGPIPE)
|
|
#signal.signal(signal.SIGPIPE, signal.SIG_DFL)
|
|
|
|
cmd = common.strip_newlines(cmd)
|
|
if not dry_run and not common.dry_run:
|
|
# https://stackoverflow.com/questions/15535240/python-popen-write-to-stdout-and-log-file-simultaneously/52090802#52090802
|
|
with subprocess.Popen(cmd, stdout=stdout, stderr=stderr, env=env, **kwargs) as proc:
|
|
if out_file is not None:
|
|
os.makedirs(os.path.split(os.path.abspath(out_file))[0], exist_ok=True)
|
|
with open(out_file, 'bw') as logfile:
|
|
while True:
|
|
byte = proc.stdout.read(1)
|
|
if byte:
|
|
if show_stdout:
|
|
sys.stdout.buffer.write(byte)
|
|
try:
|
|
sys.stdout.flush()
|
|
except BlockingIOError:
|
|
# TODO understand. Why, Python, why.
|
|
pass
|
|
logfile.write(byte)
|
|
else:
|
|
break
|
|
signal.signal(signal.SIGINT, sigint_old)
|
|
#signal.signal(signal.SIGPIPE, sigpipe_old)
|
|
returncode = proc.returncode
|
|
if returncode != 0 and raise_on_failure:
|
|
raise Exception('Command exited with status: {}'.format(returncode))
|
|
return returncode
|
|
else:
|
|
return 0
|
|
|
|
def resolve_executable(in_path, magic_in_dir, magic_out_dir, out_ext):
|
|
if os.path.isabs(in_path):
|
|
return in_path
|
|
else:
|
|
paths = [
|
|
os.path.join(magic_out_dir, in_path),
|
|
os.path.join(
|
|
magic_out_dir,
|
|
os.path.relpath(in_path, magic_in_dir),
|
|
)
|
|
]
|
|
paths[:] = [os.path.splitext(path)[0] + out_ext for path in paths]
|
|
for path in paths:
|
|
if os.path.exists(path):
|
|
return path
|
|
raise Exception('Executable file not found. Tried:\n' + '\n'.join(paths))
|
|
|
|
def resolve_userland(path):
|
|
return common.resolve_executable(
|
|
path,
|
|
common.userland_src_dir,
|
|
common.userland_build_dir,
|
|
common.userland_build_ext,
|
|
)
|
|
|
|
def set_kwargs(kwargs):
|
|
'''
|
|
Update the kwargs from the command line with derived arguments.
|
|
'''
|
|
def join(*paths):
|
|
'''
|
|
This is bad, we should just find a nice way to lazily evaluate the kwargs.
|
|
'''
|
|
if None in paths:
|
|
return None
|
|
else:
|
|
return os.path.join(*paths)
|
|
kwargs = collections.defaultdict(lambda: None, **kwargs)
|
|
if kwargs['qemu'] or not kwargs['gem5']:
|
|
kwargs['emulator'] = 'qemu'
|
|
else:
|
|
kwargs['emulator'] = 'gem5'
|
|
if kwargs['arch'] in kwargs['arch_short_to_long_dict']:
|
|
kwargs['arch'] = kwargs['arch_short_to_long_dict'][kwargs['arch']]
|
|
if kwargs['gem5_build_id'] is None:
|
|
kwargs['gem5_build_id'] = kwargs['default_build_id']
|
|
gem5_build_id_given = False
|
|
else:
|
|
gem5_build_id_given = True
|
|
if kwargs['userland_build_id'] is None:
|
|
kwargs['userland_build_id'] = kwargs['default_build_id']
|
|
kwargs['userland_build_id_given'] = False
|
|
else:
|
|
kwargs['userland_build_id_given'] = True
|
|
if kwargs['gem5_worktree'] is not None and not gem5_build_id_given:
|
|
kwargs['gem5_build_id'] = kwargs['gem5_worktree']
|
|
kwargs['is_arm'] = False
|
|
if kwargs['arch'] == 'arm':
|
|
kwargs['armv'] = 7
|
|
kwargs['gem5_arch'] = 'ARM'
|
|
kwargs['mcpu'] = 'cortex-a15'
|
|
kwargs['buildroot_toolchain_prefix'] = 'arm-buildroot-linux-uclibcgnueabihf'
|
|
kwargs['crosstool_ng_toolchain_prefix'] = 'arm-unknown-eabi'
|
|
kwargs['ubuntu_toolchain_prefix'] = 'arm-linux-gnueabihf'
|
|
if kwargs['emulator'] == 'gem5':
|
|
if kwargs['machine'] is None:
|
|
kwargs['machine'] = 'VExpress_GEM5_V1'
|
|
else:
|
|
if kwargs['machine'] is None:
|
|
kwargs['machine'] = 'virt'
|
|
kwargs['is_arm'] = True
|
|
elif kwargs['arch'] == 'aarch64':
|
|
kwargs['armv'] = 8
|
|
kwargs['gem5_arch'] = 'ARM'
|
|
kwargs['mcpu'] = 'cortex-a57'
|
|
kwargs['buildroot_toolchain_prefix'] = 'aarch64-buildroot-linux-uclibc'
|
|
kwargs['crosstool_ng_toolchain_prefix'] = 'aarch64-unknown-elf'
|
|
kwargs['ubuntu_toolchain_prefix'] = 'aarch64-linux-gnu'
|
|
if kwargs['emulator'] == 'gem5':
|
|
if kwargs['machine'] is None:
|
|
kwargs['machine'] = 'VExpress_GEM5_V1'
|
|
else:
|
|
if kwargs['machine'] is None:
|
|
kwargs['machine'] = 'virt'
|
|
kwargs['is_arm'] = True
|
|
elif kwargs['arch'] == 'x86_64':
|
|
kwargs['crosstool_ng_toolchain_prefix'] = 'x86_64-unknown-elf'
|
|
kwargs['gem5_arch'] = 'X86'
|
|
kwargs['buildroot_toolchain_prefix'] = 'x86_64-buildroot-linux-uclibc'
|
|
kwargs['ubuntu_toolchain_prefix'] = 'x86_64-linux-gnu'
|
|
if kwargs['emulator'] == 'gem5':
|
|
if kwargs['machine'] is None:
|
|
kwargs['machine'] = 'TODO'
|
|
else:
|
|
if kwargs['machine'] is None:
|
|
kwargs['machine'] = 'pc'
|
|
if 'buildroot_build_id' in kwargs:
|
|
kwargs['buildroot_build_dir'] = join(kwargs['buildroot_out_dir'], 'build', kwargs['buildroot_build_id'], kwargs['arch'])
|
|
kwargs['buildroot_download_dir'] = join(kwargs['buildroot_out_dir'], 'download')
|
|
kwargs['buildroot_config_file'] = join(kwargs['buildroot_build_dir'], '.config')
|
|
kwargs['buildroot_build_build_dir'] = join(kwargs['buildroot_build_dir'], 'build')
|
|
kwargs['buildroot_linux_build_dir'] = join(kwargs['buildroot_build_build_dir'], 'linux-custom')
|
|
kwargs['buildroot_vmlinux'] = join(kwargs['buildroot_linux_build_dir'], "vmlinux")
|
|
kwargs['host_dir'] = join(kwargs['buildroot_build_dir'], 'host')
|
|
kwargs['host_bin_dir'] = join(kwargs['host_dir'], 'usr', 'bin')
|
|
kwargs['buildroot_pkg_config'] = join(kwargs['host_bin_dir'], 'pkg-config')
|
|
kwargs['buildroot_images_dir'] = join(kwargs['buildroot_build_dir'], 'images')
|
|
kwargs['buildroot_rootfs_raw_file'] = join(kwargs['buildroot_images_dir'], 'rootfs.ext2')
|
|
kwargs['buildroot_qcow2_file'] = kwargs['buildroot_rootfs_raw_file'] + '.qcow2'
|
|
kwargs['staging_dir'] = join(kwargs['out_dir'], 'staging', kwargs['arch'])
|
|
kwargs['buildroot_staging_dir'] = join(kwargs['buildroot_build_dir'], 'staging')
|
|
kwargs['target_dir'] = join(kwargs['buildroot_build_dir'], 'target')
|
|
kwargs['linux_buildroot_build_dir'] = join(kwargs['buildroot_build_build_dir'], 'linux-custom')
|
|
if 'qemu_build_id' in kwargs:
|
|
kwargs['qemu_build_dir'] = join(kwargs['out_dir'], 'qemu', kwargs['qemu_build_id'])
|
|
kwargs['qemu_executable_basename'] = 'qemu-system-{}'.format(kwargs['arch'])
|
|
kwargs['qemu_executable'] = join(kwargs['qemu_build_dir'], '{}-softmmu'.format(kwargs['arch']), kwargs['qemu_executable_basename'])
|
|
kwargs['qemu_img_basename'] = 'qemu-img'
|
|
kwargs['qemu_img_executable'] = join(kwargs['qemu_build_dir'], kwargs['qemu_img_basename'])
|
|
kwargs['qemu_termout_file'] = join(kwargs['qemu_run_dir'], 'termout.txt')
|
|
|
|
# gem5 build
|
|
if 'gem5_build_id' in kwargs:
|
|
if kwargs['gem5_build_dir'] is None:
|
|
kwargs['gem5_build_dir'] = join(kwargs['gem5_out_dir'], kwargs['gem5_build_id'], kwargs['gem5_build_type'])
|
|
kwargs['gem5_fake_iso'] = join(kwargs['gem5_out_dir'], 'fake.iso')
|
|
kwargs['gem5_m5term'] = join(kwargs['gem5_build_dir'], 'm5term')
|
|
kwargs['gem5_build_build_dir'] = join(kwargs['gem5_build_dir'], 'build')
|
|
kwargs['gem5_executable'] = join(kwargs['gem5_build_build_dir'], kwargs['gem5_arch'], 'gem5.{}'.format(kwargs['gem5_build_type']))
|
|
kwargs['gem5_system_dir'] = join(kwargs['gem5_build_dir'], 'system')
|
|
|
|
# gem5 source
|
|
if kwargs['gem5_source_dir'] is not None:
|
|
assert os.path.exists(kwargs['gem5_source_dir'])
|
|
else:
|
|
if kwargs['gem5_worktree'] is not None:
|
|
kwargs['gem5_source_dir'] = join(kwargs['gem5_non_default_src_root_dir'], kwargs['gem5_worktree'])
|
|
else:
|
|
kwargs['gem5_source_dir'] = kwargs['gem5_default_src_dir']
|
|
kwargs['gem5_m5_source_dir'] = join(kwargs['gem5_source_dir'], 'util', 'm5')
|
|
kwargs['gem5_config_dir'] = join(kwargs['gem5_source_dir'], 'configs')
|
|
kwargs['gem5_se_file'] = join(kwargs['gem5_config_dir'], 'example', 'se.py')
|
|
kwargs['gem5_fs_file'] = join(kwargs['gem5_config_dir'], 'example', 'fs.py')
|
|
|
|
if 'crosstool_ng_build_id' in kwargs:
|
|
kwargs['crosstool_ng_buildid_dir'] = join(kwargs['crosstool_ng_out_dir'], 'build', kwargs['crosstool_ng_build_id'])
|
|
kwargs['crosstool_ng_install_dir'] = join(kwargs['crosstool_ng_buildid_dir'], 'install', kwargs['arch'])
|
|
kwargs['crosstool_ng_bin_dir'] = join(kwargs['crosstool_ng_install_dir'], 'bin')
|
|
kwargs['crosstool_ng_util_dir'] = join(kwargs['crosstool_ng_buildid_dir'], 'util')
|
|
kwargs['crosstool_ng_config'] = join(kwargs['crosstool_ng_util_dir'], '.config')
|
|
kwargs['crosstool_ng_defconfig'] = join(kwargs['crosstool_ng_util_dir'], 'defconfig')
|
|
kwargs['crosstool_ng_executable'] = join(kwargs['crosstool_ng_util_dir'], 'ct-ng')
|
|
kwargs['crosstool_ng_build_dir'] = join(kwargs['crosstool_ng_buildid_dir'], 'build')
|
|
kwargs['crosstool_ng_download_dir'] = join(kwargs['crosstool_ng_out_dir'], 'download')
|
|
if 'run_id' in kwargs:
|
|
kwargs['qemu_guest_terminal_file'] = join(kwargs['m5out_dir'], kwargs['qemu_termout_file'])
|
|
kwargs['gem5_run_dir'] = join(kwargs['run_dir_base'], 'gem5', kwargs['arch'], str(kwargs['run_id']))
|
|
kwargs['m5out_dir'] = join(kwargs['gem5_run_dir'], 'm5out')
|
|
kwargs['stats_file'] = join(kwargs['m5out_dir'], 'stats.txt')
|
|
kwargs['gem5_trace_txt_file'] = join(kwargs['m5out_dir'], 'trace.txt')
|
|
kwargs['gem5_guest_terminal_file'] = join(kwargs['m5out_dir'], 'system.terminal')
|
|
kwargs['gem5_readfile'] = join(kwargs['gem5_run_dir'], 'readfile')
|
|
kwargs['gem5_termout_file'] = join(kwargs['gem5_run_dir'], 'termout.txt')
|
|
kwargs['qemu_run_dir'] = join(kwargs['run_dir_base'], 'qemu', kwargs['arch'], str(kwargs['run_id']))
|
|
kwargs['qemu_trace_basename'] = 'trace.bin'
|
|
kwargs['qemu_trace_file'] = join(kwargs['qemu_run_dir'], 'trace.bin')
|
|
kwargs['qemu_trace_txt_file'] = join(kwargs['qemu_run_dir'], 'trace.txt')
|
|
kwargs['qemu_rrfile'] = join(kwargs['qemu_run_dir'], 'rrfile')
|
|
kwargs['gem5_out_dir'] = join(kwargs['out_dir'], 'gem5')
|
|
|
|
# Ports
|
|
if kwargs['port_offset'] is None:
|
|
try:
|
|
kwargs['port_offset'] = int(kwargs['run_id'])
|
|
except ValueError:
|
|
kwargs['port_offset'] = 0
|
|
if kwargs['emulator'] == 'gem5':
|
|
kwargs['gem5_telnet_port'] = 3456 + kwargs['port_offset']
|
|
kwargs['gdb_port'] = 7000 + kwargs['port_offset']
|
|
else:
|
|
kwargs['qemu_base_port'] = 45454 + 10 * kwargs['port_offset']
|
|
kwargs['qemu_monitor_port'] = kwargs['qemu_base_port'] + 0
|
|
kwargs['qemu_hostfwd_generic_port'] = kwargs['qemu_base_port'] + 1
|
|
kwargs['qemu_hostfwd_ssh_port'] = kwargs['qemu_base_port'] + 2
|
|
kwargs['qemu_gdb_port'] = kwargs['qemu_base_port'] + 3
|
|
kwargs['extra_serial_port'] = kwargs['qemu_base_port'] + 4
|
|
kwargs['gdb_port'] = kwargs['qemu_gdb_port']
|
|
kwargs['qemu_background_serial_file'] = join(kwargs['qemu_run_dir'], 'background.log')
|
|
|
|
# gem5 QEMU polymorphism.
|
|
if kwargs['emulator'] == 'gem5':
|
|
kwargs['executable'] = kwargs['gem5_executable']
|
|
kwargs['run_dir'] = kwargs['gem5_run_dir']
|
|
kwargs['termout_file'] = kwargs['gem5_termout_file']
|
|
kwargs['guest_terminal_file'] = gem5_guest_terminal_file
|
|
kwargs['trace_txt_file'] = gem5_trace_txt_file
|
|
else:
|
|
kwargs['executable'] = kwargs['qemu_executable']
|
|
kwargs['run_dir'] = kwargs['qemu_run_dir']
|
|
kwargs['termout_file'] = kwargs['qemu_termout_file']
|
|
kwargs['guest_terminal_file'] = kwargs['qemu_guest_terminal_file']
|
|
kwargs['trace_txt_file'] = kwargs['qemu_trace_txt_file']
|
|
kwargs['run_cmd_file'] = join(kwargs['run_dir'], 'run.sh')
|
|
|
|
# Linux kernl.
|
|
if 'linux_build_id' in kwargs:
|
|
kwargs['linux_build_dir'] = join(kwargs['out_dir'], 'linux', kwargs['linux_build_id'], kwargs['arch'])
|
|
kwargs['lkmc_vmlinux'] = join(kwargs['linux_build_dir'], "vmlinux")
|
|
if kwargs['arch'] == 'arm':
|
|
kwargs['linux_arch'] = 'arm'
|
|
kwargs['linux_image_prefix'] = join('arch', kwargs['linux_arch'], 'boot', 'zImage')
|
|
elif kwargs['arch'] == 'aarch64':
|
|
kwargs['linux_arch'] = 'arm64'
|
|
kwargs['linux_image_prefix'] = join('arch', kwargs['linux_arch'], 'boot', 'Image')
|
|
elif kwargs['arch'] == 'x86_64':
|
|
kwargs['linux_arch'] = 'x86'
|
|
kwargs['linux_image_prefix'] = join('arch', kwargs['linux_arch'], 'boot', 'bzImage')
|
|
kwargs['lkmc_linux_image'] = join(kwargs['linux_build_dir'], kwargs['linux_image_prefix'])
|
|
kwargs['buildroot_linux_image'] = join(kwargs['buildroot_linux_build_dir'], linux_image_prefix)
|
|
if kwargs['buildroot_linux']:
|
|
kwargs['vmlinux'] = kwargs['buildroot_vmlinux']
|
|
kwargs['linux_image'] = kwargs['buildroot_linux_image']
|
|
else:
|
|
kwargs['vmlinux'] = kwargs['lkmc_vmlinux']
|
|
kwargs['linux_image'] = kwargs['lkmc_linux_image']
|
|
|
|
# Kernel modules.
|
|
kwargs['kernel_modules_build_dir'] = join(kwargs['kernel_modules_build_base_dir'], kwargs['arch'])
|
|
kwargs['kernel_modules_build_subdir'] = join(kwargs['kernel_modules_build_dir'], kwargs['kernel_modules_subdir'])
|
|
kwargs['kernel_modules_build_host_dir'] = join(kwargs['kernel_modules_build_base_dir'], 'host')
|
|
kwargs['kernel_modules_build_host_subdir'] = join(kwargs['kernel_modules_build_host_dir'], kwargs['kernel_modules_subdir'])
|
|
kwargs['userland_build_dir'] = join(kwargs['out_dir'], 'userland', kwargs['userland_build_id'], kwargs['arch'])
|
|
kwargs['out_rootfs_overlay_dir'] = join(kwargs['out_dir'], 'rootfs_overlay', kwargs['arch'])
|
|
kwargs['out_rootfs_overlay_bin_dir'] = join(kwargs['out_rootfs_overlay_dir'], 'bin')
|
|
|
|
# Baremetal.
|
|
kwargs['baremetal_src_dir'] = join(kwargs['root_dir'], 'baremetal')
|
|
kwargs['baremetal_src_lib_dir'] = join(kwargs['baremetal_src_dir'], kwargs['baremetal_lib_basename'])
|
|
if kwargs['emulator'] == 'gem5':
|
|
kwargs['simulator_name'] = 'gem5'
|
|
else:
|
|
kwargs['simulator_name'] = 'qemu'
|
|
kwargs['baremetal_build_dir'] = join(kwargs['out_dir'], 'baremetal', kwargs['arch'], kwargs['simulator_name'], kwargs['machine'])
|
|
kwargs['baremetal_build_lib_dir'] = join(kwargs['baremetal_build_dir'], kwargs['baremetal_lib_basename'])
|
|
kwargs['baremetal_build_ext'] = '.elf'
|
|
|
|
# Docker
|
|
kwargs['docker_build_dir'] = join(kwargs['out_dir'], 'docker', kwargs['arch'])
|
|
kwargs['docker_tar_dir'] = join(kwargs['docker_build_dir'], 'export')
|
|
kwargs['docker_tar_file'] = join(kwargs['docker_build_dir'], 'export.tar')
|
|
kwargs['docker_rootfs_raw_file'] = join(kwargs['docker_build_dir'], 'export.ext2')
|
|
kwargs['docker_qcow2_file'] = join(kwargs['docker_rootfs_raw_file'] + '.qcow2')
|
|
if kwargs['docker']:
|
|
kwargs['rootfs_raw_file'] = kwargs['docker_rootfs_raw_file']
|
|
kwargs['qcow2_file'] = kwargs['docker_qcow2_file']
|
|
else:
|
|
kwargs['rootfs_raw_file'] = kwargs['buildroot_rootfs_raw_file']
|
|
kwargs['qcow2_file'] = kwargs['buildroot_qcow2_file']
|
|
|
|
# Image.
|
|
if kwargs['baremetal'] is None:
|
|
if kwargs['emulator'] == 'gem5':
|
|
kwargs['image'] = kwargs['vmlinux']
|
|
kwargs['disk_image'] = kwargs['rootfs_raw_file']
|
|
else:
|
|
kwargs['image'] = kwargs['linux_image']
|
|
kwargs['disk_image'] = kwargs['qcow2_file']
|
|
else:
|
|
kwargs['disk_image'] = kwargs['gem5_fake_iso']
|
|
if kwargs['baremetal'] == 'all':
|
|
path = kwargs['baremetal']
|
|
else:
|
|
path = kwargs.resolve_executable(
|
|
kwargs['baremetal'],
|
|
kwargs['baremetal_src_dir'],
|
|
kwargs['baremetal_build_dir'],
|
|
kwargs['baremetal_build_ext'],
|
|
)
|
|
source_path_noext = os.path.splitext(join(
|
|
kwargs['baremetal_src_dir'],
|
|
os.path.relpath(path, kwargs['baremetal_build_dir'])
|
|
))[0]
|
|
for ext in [c_ext, asm_ext]:
|
|
source_path = source_path_noext + ext
|
|
if os.path.exists(source_path):
|
|
kwargs['source_path'] = source_path
|
|
break
|
|
kwargs['image'] = path
|
|
return dict(kwargs)
|
|
|
|
def shlex_split(string):
|
|
'''
|
|
shlex_split, but also add Newline after every word.
|
|
|
|
Not perfect since it does not group arguments, but I don't see a solution.
|
|
'''
|
|
return common.add_newlines(shlex.split(string))
|
|
|
|
def strip_newlines(cmd):
|
|
return [x for x in cmd if x != common.Newline]
|
|
|
|
def write_configs(config_path, configs, config_fragments=None):
|
|
"""
|
|
Write extra configs into the Buildroot config file.
|
|
TODO Can't get rid of these for now with nice fragments:
|
|
http://stackoverflow.com/questions/44078245/is-it-possible-to-use-config-fragments-with-buildroots-config
|
|
"""
|
|
if config_fragments is None:
|
|
config_fragments = []
|
|
with open(config_path, 'a') as config_file:
|
|
for config_fragment in config_fragments:
|
|
with open(config_fragment, 'r') as config_fragment_file:
|
|
print_cmd(['cat', config_fragment, '>>', config_path])
|
|
if not common.dry_run:
|
|
for line in config_fragment_file:
|
|
config_file.write(line)
|
|
write_string_to_file(config_path, '\n'.join(configs), mode='a')
|