78 lines
2.7 KiB
Python
78 lines
2.7 KiB
Python
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#!/usr/bin/env python3
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# Copyright 2021 The Tint Authors.
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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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# Collect all .spvasm files under a given directory, assemble them using
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# spirv-as, and emit the assembled binaries to a given corpus directory,
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# flattening their file names by replacing path separators with underscores.
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# If the output directory already exists, it will be deleted and re-created.
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# Files ending with ".expected.spvasm" are skipped.
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#
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# The intended use of this script is to generate a corpus of SPIR-V
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# binaries for fuzzing.
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#
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# Usage:
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# generate_spirv_corpus.py <input_dir> <corpus_dir> <path to spirv-as>
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import os
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import pathlib
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import shutil
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import subprocess
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import sys
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def list_spvasm_files(root_search_dir):
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for root, folders, files in os.walk(root_search_dir):
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for filename in folders + files:
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if pathlib.Path(filename).suffix == ".spvasm":
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yield os.path.join(root, filename)
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def main():
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if len(sys.argv) != 4:
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print("Usage: " + sys.argv[0] +
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" <input dir> <output dir> <spirv-as path>")
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return 1
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input_dir: str = os.path.abspath(sys.argv[1].rstrip(os.sep))
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corpus_dir: str = os.path.abspath(sys.argv[2])
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spirv_as_path: str = os.path.abspath(sys.argv[3])
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if os.path.exists(corpus_dir):
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shutil.rmtree(corpus_dir)
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os.makedirs(corpus_dir)
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for in_file in list_spvasm_files(input_dir):
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if in_file.endswith(".expected.spvasm"):
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continue
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out_file = os.path.splitext(corpus_dir + os.sep +
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in_file[len(input_dir) + 1:]
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.replace(os.sep, '_'))[0] + ".spv"
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cmd = [spirv_as_path,
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"--target-env",
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"spv1.3",
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in_file,
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"-o",
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out_file]
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proc = subprocess.Popen(cmd,
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stdout=subprocess.PIPE,
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stderr=subprocess.PIPE)
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stdout, stderr = proc.communicate()
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if proc.returncode != 0:
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print("Error running " + " ".join(cmd) + ": " + stdout, stderr)
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return 1
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if __name__ == "__main__":
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sys.exit(main())
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