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('--configure')
        self.add_argument(
            '--extra-config-args',
            default='',
            help='''\
Extra arguments to pass to configure
'''
        )
        self._add_argument('extra_make_args')

    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['mode'] == 'userland':
            target_list = '{}-linux-user'.format(self.env['arch'])
        else:
            target_list = '{}-softmmu'.format(self.env['arch'])
        if self.env['qemu_build_type'] == 'debug':
            # https://stackoverflow.com/questions/4689136/debug-qemu-with-gdb
            build_type_cmd = ['--enable-debug', LF]
        else:
            build_type_cmd = []
        if self.env['configure']:
            self.sh.run_cmd(
                [
                    os.path.join(self.env['qemu_source_dir'], 'configure'), LF,
                    '--enable-trace-backends=simple', LF,
                    '--target-list={}'.format(target_list), LF,
                    '--enable-sdl', LF,
                ] +
                build_type_cmd +
                self.sh.shlex_split(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 +
                self.sh.add_newlines(self.env['extra_make_args'])
            ),
            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()