[issue17423] libffi on 32bit is broken on linux

2013-03-18 Thread Gregory P. Smith 

Changes by Gregory P. Smith :


--
superseder:  -> ctypes libffi needs to align the x86 stack to 16 bytes

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[issue17423] libffi on 32bit is broken on linux

2013-03-18 Thread Gregory P. Smith 

Gregory P. Smith added the comment:

I'm taking care of this with a libffi update per #17192 and #19245.  Thanks for 
the upstream fix into libffi 3.0.13 alex. :)

--
nosy: +gregory.p.smith
resolution:  -> duplicate
status: open -> closed

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[issue17423] libffi on 32bit is broken on linux

2013-03-16 Thread Alex Gaynor 

Alex Gaynor added the comment:

The patch has been merged into libffi upstream: 
https://github.com/atgreen/libffi/pull/32

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[issue17423] libffi on 32bit is broken on linux

2013-03-16 Thread Maciej Fijalkowski 

Maciej Fijalkowski added the comment:

It's not "a copy for systems that don't provide libffi", since CPython makes 
zero effort to try to use system libffi if present.

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[issue17423] libffi on 32bit is broken on linux

2013-03-16 Thread Maciej Fijalkowski 

Maciej Fijalkowski added the comment:

The issue is reported upstrem and is/will be fixed

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[issue17423] libffi on 32bit is broken on linux

2013-03-16 Thread STINNER Victor 

STINNER Victor added the comment:

libffi is not part of Python project, but Python has a copy for system which 
don't provide system libffi. You should report the issue upstream:
http://sourceware.org/libffi/

(Or is the issue already fixed upstream?)

--
nosy: +haypo

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[issue17423] libffi on 32bit is broken on linux

2013-03-15 Thread Simon Cross 

Changes by Simon Cross :


--
nosy: +hodgestar

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[issue17423] libffi on 32bit is broken on linux

2013-03-14 Thread Andrew Svetlov 

Changes by Andrew Svetlov :


--
nosy: +asvetlov

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[issue17423] libffi on 32bit is broken on linux

2013-03-14 Thread Stefan Krah 

Stefan Krah added the comment:

Is this the same as #17245?

--
nosy: +skrah

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[issue17423] libffi on 32bit is broken on linux

2013-03-14 Thread Alex Gaynor 

Changes by Alex Gaynor :


--
nosy: +alex

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[issue17423] libffi on 32bit is broken on linux

2013-03-14 Thread Maciej Fijalkowski 

Changes by Maciej Fijalkowski :


--
keywords: +patch
Added file: http://bugs.python.org/file29412/ffi.diff

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[issue17423] libffi on 32bit is broken on linux

2013-03-14 Thread Maciej Fijalkowski 

Changes by Maciej Fijalkowski :


Added file: http://bugs.python.org/file29411/x.c

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[issue17423] libffi on 32bit is broken on linux

2013-03-14 Thread Maciej Fijalkowski 

Changes by Maciej Fijalkowski :


Removed file: http://bugs.python.org/file29409/x.c

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[issue17423] libffi on 32bit is broken on linux

2013-03-14 Thread Maciej Fijalkowski 

Changes by Maciej Fijalkowski :


Added file: http://bugs.python.org/file29410/x.py

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[issue17423] libffi on 32bit is broken on linux

2013-03-14 Thread Maciej Fijalkowski 

New submission from Maciej Fijalkowski:

The bug is a little tricky to reproduce. You need a 32bit linux. First compile 
x.c with:

gcc -O3 -g -shared -o x.so x.c -std=c99 -msse3 -ftree-vectorize -mfpmath=sse

and run x.py. It segfaults because the alignment of stack is not preserved (and 
it's assumed on a modern linux). Patch attached.

--
files: x.c
messages: 184193
nosy: fijall
priority: normal
severity: normal
status: open
title: libffi on 32bit is broken on linux
type: crash
Added file: http://bugs.python.org/file29409/x.c

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