116 lines
3.6 KiB
Python
116 lines
3.6 KiB
Python
#!/usr/bin/env python3
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# Copyright (C) 2020 The Android Open Source Project
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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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""" Compiles the stress_test configs protos and bundles in a .h C++ array.
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This scripts takes all the configs in /test/stress_test/configs, compiles them
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with protoc and generates a C++ header which contains the configs' names and
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proto-encoded bytes.
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This is invoked by the build system and is used by the stress_test runner. The
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goal is making the stress_test binary hermetic and not depend on the repo.
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"""
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from __future__ import absolute_import
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from __future__ import division
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from __future__ import print_function
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import os
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import sys
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import argparse
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import shutil
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import subprocess
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CUR_DIR = os.path.dirname(os.path.realpath(__file__))
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ROOT_DIR = os.path.dirname(os.path.dirname(CUR_DIR))
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CONFIGS_DIR = os.path.join(CUR_DIR, 'configs')
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def find_protoc():
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for root, _, files in os.walk(os.path.join(ROOT_DIR, 'out')):
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if 'protoc' in files:
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return os.path.join(root, 'protoc')
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return None
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def main():
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parser = argparse.ArgumentParser()
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parser.add_argument('--protoc')
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parser.add_argument('--out', required=True)
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parser.add_argument('cfgfiles', nargs='+')
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args = parser.parse_args()
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protoc = args.protoc or find_protoc()
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assert protoc, 'protoc not found, pass --protoc /path/to/protoc'
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assert os.path.exists(protoc), '{} does not exist'.format(protoc)
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if protoc is not args.protoc:
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print('Using protoc: {}'.format(protoc))
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blobs = {}
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for cfg_path in args.cfgfiles:
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cfg_path = cfg_path.replace('\\', '/')
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cfg_name = os.path.splitext(cfg_path)[0].split('/')[-1]
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with open(cfg_path, 'r') as in_file:
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compiled_proto = subprocess.check_output([
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protoc,
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'--encode=perfetto.protos.StressTestConfig',
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'--proto_path=' + ROOT_DIR,
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os.path.join(ROOT_DIR, 'protos', 'perfetto', 'config',
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'stress_test_config.proto'),
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],
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stdin=in_file)
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blobs[cfg_name] = bytearray(compiled_proto)
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# Write the C++ header file
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fout = open(args.out, 'wb')
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include_guard = args.out.replace('/', '_').replace('.', '_').upper() + '_'
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fout.write("""
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#ifndef {include_guard}
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#define {include_guard}
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#include <stddef.h>
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#include <stdint.h>
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// This file was autogenerated by ${gen_script}. Do not edit.
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namespace perfetto {{
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namespace {{
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struct StressTestConfigBlob {{
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const char* name;
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const uint8_t* data;
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size_t size;
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}};\n\n""".format(
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gen_script=__file__,
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include_guard=include_guard,
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).encode())
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configs_arr = '\nconst StressTestConfigBlob kStressTestConfigs[] = {\n'
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for cfg_name, blob in blobs.items():
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arr_str = ','.join(str(b) for b in blob)
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line = 'const uint8_t _config_%s[]{%s};\n' % (cfg_name, arr_str)
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fout.write(line.encode())
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configs_arr += ' {{"{n}", _config_{n}, sizeof(_config_{n})}},\n'.format(
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n=cfg_name)
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configs_arr += '};\n'
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fout.write(configs_arr.encode())
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fout.write("""
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} // namespace
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} // namespace perfetto
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#endif\n""".encode())
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fout.close()
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if __name__ == '__main__':
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exit(main())
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