[uClibc 0000430]: dlopen incorrectly merges absolute library names

bugs at busybox.net bugs at busybox.net
Wed Sep 14 10:18:43 UTC 2005


The following issue has been SUBMITTED. 
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http://busybox.net/bugs/view.php?id=430 
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Reported By:                mfuzzey
Assigned To:                uClibc
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Project:                    uClibc
Issue ID:                   430
Category:                   Shared Library Support
Reproducibility:            always
Severity:                   major
Priority:                   normal
Status:                     assigned
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Date Submitted:             09-14-2005 03:18 PDT
Last Modified:              09-14-2005 03:18 PDT
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Summary:                    dlopen incorrectly merges absolute library names
Description: 
In fact with 0.9.28 but tracker wouldn't accept that..

When two calls to dlopen are used with library names containing / but
refering to *different* libraries the second call returns the same library
as the first.

I am having this problem with python (compiled by standard buildroot) and
pygame (custom buildroot extension).
python contains a native library /usr/lib/python2.4/lib-dynload/time.so
pygame contains a native library
/usr/lib/python2.4/site-packages/pygame/time.so
These two libraries are completely different

Importing either by itself works correctly
However if both are imported in the same python process the dlopen call
for the second returns a reference to the first!

The reason is evident looking at _dl_load_shared_library in dl-elf.c
[duplicate detection is performed after removing all / parts...]

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Issue History 
Date Modified   Username       Field                    Change               
====================================================================== 
09-14-05 03:18  mfuzzey        New Issue                                    
09-14-05 03:18  mfuzzey        Status                   new => assigned     
09-14-05 03:18  mfuzzey        Assigned To               => uClibc          
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