linux-kernel-module-cheat/build-qemu

#!/usr/bin/env python3

import os

import common
from shell_helpers import LF

class Main(common.BuildCliFunction):
    def __init__(self):
        super().__init__()
        self.add_argument(
            '--user-mode',
            default=False,
            help='Build QEMU user mode instead of system.',
        )
        self.add_argument(
            'extra_config_args',
            default=[],
            metavar='extra-config-args',
            nargs='*'
        )

    def build(self):
        build_dir = self.get_build_dir()
        os.makedirs(build_dir, exist_ok=True)
        if self.env['verbose']:
            verbose = ['V=1']
        else:
            verbose = []
        if self.env['user_mode']:
            target_list = '{}-linux-user'.format(self.env['arch'])
        else:
            target_list = '{}-softmmu'.format(self.env['arch'])
        self.sh.run_cmd(
            [
                os.path.join(self.env['qemu_source_dir'], 'configure'), LF,
                '--enable-debug', LF,
                '--enable-trace-backends=simple', LF,
                '--target-list={}'.format(target_list), LF,
                '--enable-sdl', LF,
                '--with-sdlabi=2.0', LF,
            ] +
            self.sh.add_newlines(self.env['extra_config_args']),
            extra_paths=[self.env['ccache_dir']],
            cwd=build_dir
        )
        self.sh.run_cmd(
            (
                [
                    'make', LF,
                    '-j', str(self.env['nproc']), LF,

                ] +
                verbose
            ),
            cwd=build_dir,
            extra_paths=[self.env['ccache_dir']],
        )

    def get_build_dir(self):
        return self.env['qemu_build_dir']

if __name__ == '__main__':
    Main().cli()