Staging
v0.5.1
Revision c9b3fc6b59b625c36c31ad437253e7140938af1a authored by Victor Stinner on 22 November 2018, 16:40:53 UTC, committed by GitHub on 22 November 2018, 16:40:53 UTC
* bpo-9263: _PyObject_Dump() detects freed memory (GH-10061)

_PyObject_Dump() now uses an heuristic to check if the object memory
has been freed: log "<freed object>" in that case.

The heuristic rely on the debug hooks on Python memory allocators
which fills the memory with DEADBYTE (0xDB) when memory is
deallocated. Use PYTHONMALLOC=debug to always enable these debug
hooks.

(cherry picked from commit 82af0b63b07aa8d92b50098e382b458143cfc677)

* bpo-9263: Fix _PyObject_Dump() for freed object (#10661)

If _PyObject_Dump() detects that the object is freed, don't try to
dump it (exit immediately).

Enhance also _PyObject_IsFreed(): it now detects if the pointer
itself looks like freed memory.

(cherry picked from commit 2cf5d32fd9e61488e8b0be55a2e92a752ba8b06b)
(cherry picked from commit 95036ea25d47f0081bda2ba96ea327f3375cb6a4)
1 parent 0c15e50
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