Stephan Bergmann
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67466a1975
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Fix Python 3.5 sizeof(PyGC_Head) for UBSan
...by again using 'long double' instead of 'double' to "force worst-case
alignment," just like Python 3.3 used to do. This fixes -fsanitize=alignment
failures like
> workdir/UnpackedTarball/python3/Modules/_ctypes/_ctypes.c:2923:10: runtime error: member access within misaligned address 0x6110007af498 for type 'CDataObject' (aka 'struct tagCDataObject'), which requires 16 byte alignment
> 0x6110007af498: note: pointer points here
> ff ff ff ff 01 00 00 00 00 00 00 00 98 98 17 00 90 61 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> ^
> GenericPyCData_new workdir/UnpackedTarball/python3/Modules/_ctypes/_ctypes.c:2923:10
> PyCFuncPtr_new workdir/UnpackedTarball/python3/Modules/_ctypes/_ctypes.c:3385:29
> type_call workdir/UnpackedTarball/python3/Objects/typeobject.c:908:11
> [...]
during PythonTest_dbaccess_python.
Change-Id: I8cc65823e1bc65807ec30c97a9099462e55c996d
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2015-10-27 10:12:47 +01:00 |
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