0000918: dlclose() doesn't call shared object destructor

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Category

Severity

Reproducibility

Date Submitted

Last Update

0000918

[uClibc] Shared Library Support

major

always

06-21-06 01:03

06-21-06 01:36

Reporter

albrecht

View Status

public

Assigned To

uClibc

Priority

normal

Resolution

no change required

Status

closed

Product Version

0.9.26

Summary

0000918: dlclose() doesn't call shared object destructor

Description

Using the dynamic loader, the constructor and destructor functions should be run when dlopen() or dlclose() are called, respectively. This works properly on any glibc based system, but with uclibc 0.9.26 on an ARM9 board, dlclose() doesn't call the destructor.

This is bad as the destructor is responsible to free any dynamically allocated stuff of "plugins" which should be loaded and unloaded dynamically.

Additional Information

The attached test case produces the following output on a glibc system (just say make and run dl-test):

<snip>
plugin constructor func
Hello from plugin [42]!
Result = 43
plugin destructor func <<< called through dlclose()
dlclose() done.
</snip>

Using uclibc, the destructor is called only when the application exits, and /not/ by dlclose().

Attached Files

dl-test.tar.gz [^] (1,538 bytes) 06-21-06 01:03

Relationships

Notes
(0001440) vapier 06-21-06 01:36	you really need to upgrade, 0.9.26 is pretty outdated and as you've illustrated here, has bugs that have already been fixed also, your makefile is broken ... it fails to build the shared object code with -fPIC

Issue History
Date Modified	Username	Field	Change
06-21-06 01:03	albrecht	New Issue
06-21-06 01:03	albrecht	Status	new => assigned
06-21-06 01:03	albrecht	Assigned To	=> uClibc
06-21-06 01:03	albrecht	File Added: dl-test.tar.gz
06-21-06 01:04	albrecht	Issue Monitored: albrecht
06-21-06 01:36	vapier	Note Added: 0001440
06-21-06 01:36	vapier	Status	assigned => closed
06-21-06 01:36	vapier	Resolution	open => no change required