2 # Copyright © Microsoft Corporation
4 # Permission is hereby granted, free of charge, to any person obtaining a
5 # copy of this software and associated documentation files (the "Software"),
6 # to deal in the Software without restriction, including without limitation
7 # the rights to use, copy, modify, merge, publish, distribute, sublicense,
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9 # Software is furnished to do so, subject to the following conditions:
11 # The above copyright notice and this permission notice (including the next
12 # paragraph) shall be included in all copies or substantial portions of the
15 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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25 # Take a log file produced by GALLIUM_REFCNT_LOG, filter it to the objects that
26 # weren't destroyed by the end of the log, and write the results out sorted.
27 # Strips stacks by default to prevent OOM. Could probably be rewritten to walk
28 # the file twice to preserve stacks without OOM, but this was the easy way.
30 parser = argparse.ArgumentParser()
31 parser.add_argument('--input',
34 help='path to file containing refcount log')
35 parser.add_argument('--output',
38 help='path to trimmed log')
39 parser.add_argument('--filter',
40 help='object type filter')
41 parser.add_argument('--keep-stacks',
42 help='keep stacks, otherwise only headers')
43 args = parser.parse_args()
47 with open(args.input) as in_file:
54 parts = line.split(' ')
55 prev_object = cur_object
57 if parts[3].strip() == 'Destroy':
58 if cur_object in objects:
59 del objects[cur_object]
61 if parts[3].strip() == 'Create':
62 if (not args.filter) or (args.filter in parts[0]):
63 objects[cur_object] = []
64 if prev_object in objects:
65 objects[prev_object] += stack
68 elif args.keep_stacks:
71 with open(args.output, 'wt') as out_file:
72 for stack in objects.values():
73 for stack_line in stack:
74 out_file.write(stack_line)
77 if __name__ == '__main__':