Dynamic Analysis with Clang building python make unittest failed

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#746 opened on Sep 14, 2021 0 comments 0 reactions 0 assignees View on GitHub

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Assessment

Difficulty: 3/5
Estimated time: 1-2 days
Newbie friendliness: 38/100

Issue type: Bug
Clarity: Mostly clear
Activity status: Stale
Tech stack: python
Domain: build-system, testing

Research direction

Start by locating the Python unittest sanitizer check that reads sysconfig CFLAGS and CONFIG_ARGS. Compare it with the listed configure options for AddressSanitizer, MemorySanitizer, and UndefinedBehaviorSanitizer, then run the make unittest check to confirm sanitizer detection works with those options.

Written by the indexing model from the issue text.

Description

needs: decision topic-building python topic-test type-feature

use this way to enable sanitizers make unittest check Sanitizer failed; it use _cflags to check

_cflags = sysconfig.get_config_var('CFLAGS') or ''
_config_args = sysconfig.get_config_var('CONFIG_ARGS') or ''
MEMORY_SANITIZER = (
    '-fsanitize=memory' in _cflags or
    '--with-memory-sanitizer' in _config_args
)

ADDRESS_SANITIZER = (
    '-fsanitize=address' in _cflags
)

should replace with configure option

  --with-address-sanitizer
                          enable AddressSanitizer memory error detector,
                          'asan' (default is no)
  --with-memory-sanitizer enable MemorySanitizer allocation error detector,
                          'msan' (default is no)
  --with-undefined-behavior-sanitizer
                          enable UndefinedBehaviorSanitizer undefined
                          behaviour detector, 'ubsan' (default is no)

Dominant language: Python
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Forks: 1k
Avg merge: 2d 12h
Merged PRs (30d): 12

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