Issue 1467450: test_ctypes fails on OSX 10.3 (original) (raw)
Created on 2006-04-10 01:21 by anthonybaxter, last changed 2022-04-11 14:56 by admin. This issue is now closed.
Messages (9)
Author: Anthony Baxter (anthonybaxter) 
Date: 2006-04-10 01:21
test test_ctypes failed -- Traceback (most recent call last): File "/Users/anthonybaxter/python/Lib/ctypes/test/test_loading.py", line 30, in test_load cdll.load(libc_name) File "/Users/anthonybaxter/python/Lib/ctypes/_loader.py", line 112, in load return self._load(libname, mode) File "/Users/anthonybaxter/python/Lib/ctypes/_loader.py", line 153, in _load return self.load_library(pathname, mode) File "/Users/anthonybaxter/python/Lib/ctypes/_loader.py", line 124, in load_library return self._dlltype(libname, mode) File "/Users/anthonybaxter/python/Lib/ctypes/init.py", line 288, in init self._handle = _dlopen(self._name, mode) OSError: dlcompat: unable to open this file with RTLD_LOCAL
This happens both with and without the patch in r43748.
Darwin sam.local 7.9.0 Darwin Kernel Version 7.9.0: Wed Mar 30 20:11:17 PST 2005; root:xnu/xnu-517.12.7.obj~1/RELEASE_PPC Power Macintosh powerpc
GCC version: Reading specs from /usr/libexec/gcc/darwin/ppc/3.3/specs Thread model: posix gcc version 3.3 20030304 (Apple Computer, Inc. build 1640)
Author: Thomas Heller (theller) * 
Date: 2006-04-13 06:59
Logged In: YES user_id=11105
I'm trying to get a copy of OS X 10.3, then will try to install it and look after this problem. OTOH, the ctypes loading code is currently rewritten in the upstream version - this will probably prevent this failure.
In the meantime, can you try to find out the cause of this failure? Would RTLD_GLOBAL instead of RTLD_LOCAL work? Is the library file missing?
Author: Thomas Heller (theller) *
Date: 2006-05-09 18:38
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Does this failure still occur with Python 2.5a2, or the current SVN trunk?
Author: Neal Norwitz (nnorwitz) *
Date: 2006-07-10 04:14
Logged In: YES user_id=33168
Anthony is this still a problem?
Author: Thomas Heller (theller) *
Date: 2006-07-10 08:13
Logged In: YES user_id=11105
Here is a patch that I hope will fix this problem. Ronald Oussuren suggested in private email to use RTLD_GLOBAL as default library loading mode on OS X 10.3. He suggested to use the platform module to find out the osx version, however I don't like. Instead I found by examining platform that gestalt.gestalt("sysv") returns the information I need.
I still don't have access to 10.3 (and Python does not compile on the 10.2.8 sourceforge osx compile farm machine - should I add a bug for that one?), so I cannot really test the patch myself.
Author: Thomas Heller (theller) *
Date: 2006-07-10 09:07
Logged In: YES user_id=11105
Even better would imo be to call the Gestalt function in the _ctypes extensions module itself.
Author: Anthony Baxter (anthonybaxter)
Date: 2006-07-10 09:43
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I'm not going to get the opportunity to look at this before the b2 freeze tomorrow morning, but will look at it soon after.
Author: Ronald Oussoren (ronaldoussoren) *
Date: 2006-07-11 17:45
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With this patch test_ctypes passed on 10.3.
I'm in favor of applying this patch.
Author: Thomas Heller (theller) *
Date: 2006-07-12 08:44
Logged In: YES user_id=11105
Committed as r50601.