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Update ASan information regarding --without-pymalloc flag #1609

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Jul 19, 2025
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Update ASan information regarding --without-pymalloc flag #1609

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Update ASan information regarding --without-pymalloc flag
disconnect3d Jul 19, 2025
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6 changes: 5 additions & 1 deletion development-tools/clang.rst
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Expand Up @@ -103,7 +103,11 @@ Then, run ``./configure`` with the relevant flags:
* ASan: ``--with-address-sanitizer --without-pymalloc``
* UBsan: ``--with-undefined-behavior-sanitizer``

It is OK to specify both sanitizers.
The ``--without-pymalloc`` option is not necessary (tests should pass without it),
but disabling pymalloc helps ASan uncover more bugs (ASan does not track
individual allocations done by pymalloc).

It is OK to specify both sanitizers.

After that, run ``make`` and ``make test`` as usual.
Note that ``make`` itself may fail with a sanitizer failure,
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