Re: shlibs/2465: break point on shared libraries that are not closed, but deleted.

Re: shlibs/2465: break point on shared libraries that are not closed, but deleted.

[Daniel Jacobowitz]

The following reply was made to PR shlibs/2465; it has been noted by GNATS.

From: Daniel Jacobowitz <drow@false.org>
To: amritpal.engg@gmail.com
Cc: gdb-gnats@sources.redhat.com
Subject: Re: shlibs/2465: break point on shared libraries that are not
	closed, but deleted.
Date: Tue, 10 Jun 2008 16:21:36 -0400

 On Tue, Jun 10, 2008 at 05:41:11PM -0000, amritpal.engg@gmail.com wrote:
 > >Release:        GNU gdb 6.3
 
 Please try a newer version; GDB will warn but no longer crash.
 
 -- 
 Daniel Jacobowitz
 CodeSourcery

shlibs/2465: break point on shared libraries that are not closed, but deleted.

[amritpal.engg]

>Number:         2465
>Category:       shlibs
>Synopsis:       break point on shared libraries that are not closed, but deleted.
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    unassigned
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Tue Jun 10 17:48:01 UTC 2008
>Closed-Date:
>Last-Modified:
>Originator:     amritpal.engg@gmail.com
>Release:        GNU gdb 6.3
>Organization:
>Environment:
uname -a
Linux polaris 2.4.21-20.EL #1 Wed Aug 18 20:58:25 EDT 2004 i686 i686 i386 GNU/Linux

echo $LD_LIBRARY_PATH
/usr/lib:/usr/X11R6/lib:/lib:/usr/local/lib
>Description:
gdb terminates abnormally. Says to report bug and here i am reporting it.

Let me explain the scenario first.

We have an encrypted "libtry.so" (in this case i am just i using a dummy not-encrypted one). in each run we decrypt the so to a new file in /tmp directory to produce an executable "libtry.so". Now this is loaded at run time internally using dlopen function.

After executing some functions of loaded library. I just deleted the underlying library before using "dlclose".

Now i want to  set a break point on function of the library. GDB crashes. Pressing Tab button shows the list of library function, even when run is completed. (Should tell me it as pending breakpoint and also call dlclose on all existing open library after the main has returned)
>How-To-Repeat:
See the attached tar-file.
To reproduce
1. download
2. untar
3. execute the following commands 

make
make gdb

NOTE: Please set complier (gcc and g++) paths correctly in Makefile. Required gcc compilier for compiling lib
>Fix:
Should tell me it as pending breakpoint and also call dlclose on all existing open library after the main has returned
>Release-Note:
>Audit-Trail:
>Unformatted:
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