2f7fe7135b
The profdata file that coverage.py *exports* is different than what it uses to generate coverage locally, causing a divergence in behavior of the local coverage script and the recipe run for coverage in automation. Plus, coverage.py is far too heavyweight for what we need anyway. Replace coverage.py with a simple llvm-profdata merge command. Change-Id: Icd8c8f52abb214399395e4d82a34f71fa2bc1329 Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4657425 Reviewed-by: Prakhar Asthana <pasthana@google.com> Commit-Queue: Julia Hansbrough <flowerhack@google.com> Cr-Commit-Position: refs/heads/main@{#1166687}
62 lines
1.8 KiB
Python
Executable File
62 lines
1.8 KiB
Python
Executable File
#!/usr/bin/env python3
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# Copyright 2023 The Chromium Authors
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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""" Merge all the profdata files in PROFDATA_DIR, utilizing the binaries in
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BINARIES_DIR, to create a unified coverage report in REPORT_DIR. (If no
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REPORT_DIR is provided, defaults to `out/report`.)
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* Example usage: merge_all_profdata.py --profdata-dir [PROFDATA_DIR]
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--binaries-dir [BINARIES_DIR] [--report-dir [REPORT_DIR]]
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"""
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import argparse
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import logging
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import os
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import subprocess
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def _ParseCommandArguments():
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"""Adds and parses relevant arguments for tool commands.
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Returns:
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A dictionary representing the arguments.
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"""
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arg_parser = argparse.ArgumentParser()
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arg_parser.usage = __doc__
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arg_parser.add_argument('--llvm-profdata',
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required=True,
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type=str,
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help='Location of LLVM profdata tool')
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arg_parser.add_argument('--profdata-dir',
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required=True,
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type=str,
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help='Directory in which profdata files are stored.')
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arg_parser.add_argument(
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'--outfile',
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type=str,
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required=True,
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help=('Directory where the coverage report should go. '
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'Default is out/report.'))
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args = arg_parser.parse_args()
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return args
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args = _ParseCommandArguments()
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targets_to_cover = []
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for profdata_file in os.listdir(args.profdata_dir):
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targets_to_cover.append(os.path.join(args.profdata_dir, profdata_file))
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subprocess_cmd = [args.llvm_profdata, 'merge', '-o', args.outfile]
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for target in targets_to_cover:
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subprocess_cmd.append(target)
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try:
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subprocess.check_call(subprocess_cmd)
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except:
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logging.error("An error occured while merging the profdata.")
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exit(1)
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