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# SPDX-License-Identifier: GPL-2.0+
# Copyright 2024 Marek Vasut <marex@denx.de>
#
"""Bintool implementation for cst"""
import re
from binman import bintool
class Bintoolcst(bintool.Bintool):
"""Image generation for U-Boot
This bintool supports running `cst` with some basic parameters as
needed by binman.
cst (imx code signing tool) is used for sigining bootloader binaries for
various i.MX SoCs.
See `Code Signing Tool Users Guide`_ for more information.
.. _`Code Signing Tool Users Guide`:
https://community.nxp.com/pwmxy87654/attachments/pwmxy87654/imx-processors/202591/1/CST_UG.pdf
"""
def __init__(self, name):
super().__init__(name, 'Sign NXP i.MX image')
# pylint: disable=R0913
def run(self, output_fname=None):
"""Run cst
Args:
output_fname: Output filename to write to
"""
args = []
if output_fname:
args += ['-o', output_fname]
return self.run_cmd(*args)
def fetch(self, method):
"""Build cst from git"""
if method != bintool.FETCH_BUILD:
return None
from platform import architecture
arch = 'linux64' if architecture()[0] == '64bit' else 'linux32'
result = self.build_from_git(
'https://gitlab.apertis.org/pkg/imx-code-signing-tool',
['all'],
f'code/obj.{arch}/cst',
flags=[f'OSTYPE={arch}', 'ENCRYPTION=yes'],
git_branch='debian/unstable',
make_path=f'code/obj.{arch}/')
return result
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