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authorMartin Ågren <martin.agren@gmail.com>2017-08-21 19:43:48 +0200
committerJunio C Hamano <gitster@pobox.com>2017-08-23 10:38:56 -0700
commit6cdf8a7929688ea5702ab53f450d038e973e64e1 (patch)
tree6bc1c2972542be1c7ada97faefa345278b582c7e /commit-slab.h
parent65961d5a75e28aa04a90ee65106f71da177fd4b3 (diff)
downloadgit-ma/ts-cleanups.tar.gz
ThreadSanitizer: add suppressionsma/ts-cleanups
Add a file .tsan-suppressions and list two functions in it: want_color() and transfer_debug(). Both of these use the pattern static int foo = -1; if (foo < 0) foo = bar(); where bar always returns the same non-negative value. This can cause ThreadSanitizer to diagnose a race when foo is written from two threads. That is indeed a race, although it arguably doesn't matter in practice since it's always the same value that is written. Add NEEDSWORK-comments to the functions so that this problem is not forever swept way under the carpet. The suppressions-file is used by setting the environment variable TSAN_OPTIONS to, e.g., "suppressions=$(pwd)/.tsan-suppressions". Observe that relative paths such as ".tsan-suppressions" might not work. Signed-off-by: Martin Ågren <martin.agren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
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