mattip added the comment:
This is a duplicate of issue 20160, and has been fixed. Can someone mark it as
a duplicate and close it?
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nosy: +mattip
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Python tracker rep...@bugs.python.org
http://bugs.python.org/issue11835
Changes by Berker Peksag berker.pek...@gmail.com:
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resolution: - duplicate
stage: - resolved
status: open - closed
superseder: - broken ctypes calling convention on MSVC / 64-bit Windows
(large structs)
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Vlad Riscutia riscutiav...@gmail.com added the comment:
Attached patch for this issue.
This only happens on MSVC x64 (I actually tired to repro on Arch Linux x64
before starting work on it and it didn't repro).
What happens is that MSVC on x64 always passes structures larger than 8 bytes
by
Changes by Stefan Krah stefan-use...@bytereef.org:
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nosy: +amaury.forgeotdarc, belopolsky
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Vlad Riscutia riscutiav...@gmail.com added the comment:
Changing type to behavior as it doesn't crash on 3.3. I believe issue was
opened against 2.6 and Santoso changed it to 2.7 and up where there is no crash.
Another data point: there is similar fix in current version of libffi here:
Changes by Christoph Gohlke cgoh...@uci.edu:
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nosy: +cgohlke
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New submission from Abraham Soedjito abraham.soedj...@gmail.com:
void __cdecl foo(unsigned __int32 a,
unsigned __int32 b,
unsigned __int32 c,
unsigned __int32 d,
unsigned __int32 e,
unsigned __int32 f,
Changes by Santoso Wijaya santoso.wij...@gmail.com:
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nosy: +santa4nt
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Santoso Wijaya santoso.wij...@gmail.com added the comment:
I can reproduce this with 2.7 and 3.2 64-bit builds on Windows:
D:\Temp\cdll\x64\ReleaseC:\Python32\python.exe
Python 3.2 (r32:88445, Feb 20 2011, 21:30:00) [MSC v.1500 64 bit (AMD64)] on win
32
Type help, copyright, credits or license
Santoso Wijaya santoso.wij...@gmail.com added the comment:
32-bit (2.6) is fine:
D:\Temp\cdll\ReleaseC:\Python26\python.exe
Python 2.6.6 (r266:84297, Aug 24 2010, 18:46:32) [MSC v.1500 32 bit (Intel)] on
win32
Type help, copyright, credits or license for more information.
from ctypes import *
Changes by Jonathan White jonathan.wh...@ni.com:
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nosy: +jwhitecl
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Santoso Wijaya santoso.wij...@gmail.com added the comment:
Attaching a ctypes unittest (against 2.7 branch) that will expose this bug in
regrtest.
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keywords: +patch
Added file: http://bugs.python.org/file21633/test_issue11835.patch
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