Author tilsche
Recipients amaury.forgeotdarc, belopolsky, eryksun, meador.inge, tilsche
Date 2016-04-05.10:40:32
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Message-id <1459852832.59.0.581977556033.issue26628@psf.upfronthosting.co.za>
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Thanks Eryk for the additional explanation. I added a more elaborate example that doesn't abuse the standard c function that actually doesn't expect a union:

 % gcc -shared -fPIC libfoo.c -o libfoo.so -Wall
 % python pyfoo.py                             
*** stack smashing detected ***: python terminated
[1]    28463 segmentation fault (core dumped)  python pyfoo.py

The underling issue is exactly the same as previously described.

I still argue that ctypes should refuse to attempt such a call, and the documentation should be clarified, as long as libffi does not support unions.
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Date User Action Args
2016-04-05 10:40:32tilschesetrecipients: + tilsche, amaury.forgeotdarc, belopolsky, meador.inge, eryksun
2016-04-05 10:40:32tilschesetmessageid: <1459852832.59.0.581977556033.issue26628@psf.upfronthosting.co.za>
2016-04-05 10:40:32tilschelinkissue26628 messages
2016-04-05 10:40:32tilschecreate