mirror of https://github.com/ARMmbed/mbed-os.git
130 lines
4.2 KiB
Python
130 lines
4.2 KiB
Python
#!/usr/bin/python
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# Copyright (c) 2017-2019 ARM Limited
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#
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# SPDX-License-Identifier: Apache-2.0
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import argparse
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import itertools
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import json
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import os
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import sys
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from os.path import join as path_join
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# Be sure that the tools directory is in the search path
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ROOT = os.path.abspath(path_join(os.path.dirname(__file__), os.pardir, os.pardir))
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sys.path.insert(0, ROOT)
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from tools.psa.mbed_spm_tfm_common import validate_partition_manifests, \
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manifests_discovery, parse_manifests, generate_source_files, \
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MBED_OS_ROOT
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__version__ = '1.1'
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SCRIPT_DIR = os.path.dirname(os.path.abspath(__file__))
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MANIFEST_FILE_PATTERN = '*_psa.json'
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PSA_CORE_ROOT = path_join(MBED_OS_ROOT, 'components', 'TARGET_PSA')
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TEMPLATES_DESC = path_join(SCRIPT_DIR, 'spm_template_file_list.json')
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def _get_timestamp(f):
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return os.path.getmtime(f) if os.path.isfile(f) else 0
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def is_up_to_date(manifest_files, out_files):
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manifest_timestamp = max(_get_timestamp(f) for f in manifest_files)
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out_timestamps = min(_get_timestamp(f) for f in out_files)
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return manifest_timestamp <= out_timestamps
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def generate_spm_code(service_files, app_files, output_dir):
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with open(TEMPLATES_DESC, 'r') as fh:
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templates_data = json.load(fh)
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templates_dict = {
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path_join(MBED_OS_ROOT, t['template']):
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path_join(output_dir, t['output']) for t in templates_data
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}
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if is_up_to_date(service_files + app_files, list(templates_dict.values())):
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return
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# Construct lists of all the manifests and mmio_regions.
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service_manifests, service_region_list = parse_manifests(service_files)
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test_manifests, test_region_list = parse_manifests(app_files)
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# Validate the correctness of the manifest collection.
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validate_partition_manifests(service_manifests + test_manifests)
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region_list = service_region_list + test_region_list
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render_args = {
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'service_partitions': service_manifests,
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'test_partitions': test_manifests,
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'script_ver': __version__,
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'regions': region_list,
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'region_pair_list': list(itertools.combinations(region_list, 2)),
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}
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generate_source_files(templates_dict, render_args)
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class AppendReadableDir(argparse.Action):
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def __call__(self, parser, namespace, values, option_string=None):
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prosp_dir = os.path.abspath(values)
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if not os.path.isdir(prosp_dir):
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raise argparse.ArgumentTypeError("{} is missing".format(prosp_dir))
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if not os.access(prosp_dir, os.R_OK):
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raise argparse.ArgumentTypeError(
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"{} is not a accessible for read".format(prosp_dir))
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if not getattr(namespace, self.dest):
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setattr(namespace, self.dest, [])
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getattr(namespace, self.dest).append(prosp_dir)
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def get_parser():
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parser = argparse.ArgumentParser(
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description='PSA SPM code generator',
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formatter_class=argparse.ArgumentDefaultsHelpFormatter
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)
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parser.add_argument(
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'-u', '--user-app',
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action=AppendReadableDir,
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default=[ROOT],
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help='Root directory for recursive PSA manifest scan. Use for adding '
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'application specific secure partitions. Can be supplied more '
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'than once',
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metavar='DIR'
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)
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parser.add_argument(
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'-o', '--output-dir',
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default=ROOT,
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help='Root directory for generating the sources',
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metavar='DIR'
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)
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return parser
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def main():
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parser = get_parser()
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args = parser.parse_args()
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services, apps = manifests_discovery(root_dirs=args.user_app,
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ignore_paths=['BUILD', '.git'])
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generate_spm_code(services, apps, args.output_dir)
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if __name__ == '__main__':
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main()
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