pmbootstrap/pmb/parse/binfmt_info.py

50 lines
1.6 KiB
Python

"""
Copyright 2018 Oliver Smith
This file is part of pmbootstrap.
pmbootstrap is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
pmbootstrap is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with pmbootstrap. If not, see <http://www.gnu.org/licenses/>.
"""
import logging
import pmb.config
# Get magic and mask from binfmt info file
# Return: {magic: ..., mask: ...}
def binfmt_info(args, arch_qemu):
# Parse the info file
full = {}
info = pmb.config.pmb_src + "/pmb/data/qemu-user-binfmt.txt"
logging.verbose("parsing: " + info)
with open(info, "r") as handle:
for line in handle:
if line.startswith('#') or "=" not in line:
continue
splitted = line.split("=")
key = splitted[0].strip()
value = splitted[1]
full[key] = value[1:-2]
ret = {}
logging.verbose("filtering by architecture: " + arch_qemu)
for type in ["mask", "magic"]:
key = arch_qemu + "_" + type
if key not in full:
raise RuntimeError("Could not find key " + key + " in binfmt info file: " +
info)
ret[type] = full[key]
logging.verbose("=> " + str(ret))
return ret