Comments on: Updating shared libraries

By: Stu

Stu — Fri, 10 Jul 2009 15:32:14 +0000

Can’t you call ldconfig and tell it to update the shared libraries without rebooting ?

By: Frank

Frank — Fri, 10 Jul 2009 14:25:33 +0000

After a quick try with lsof: when deleting a shared lib in use by a program, lsof still lists the file with it’s original name, but the ‘fd’ is displayed as “DEL”.
Maybe that gives you an idea about the direction to look in …

By: Jerome Haltom

Jerome Haltom — Fri, 10 Jul 2009 14:12:51 +0000

You can basically troll through /proc/PID/something and pull all of the mapped files. gnome-system-monitor does this.

By: gvarisco

gvarisco — Fri, 10 Jul 2009 13:48:27 +0000

Sectool does something similar with their tests’ suite, but it is written in bash:

https://fedorahosted.org/sectool/browser/tests/05_removedlibs.dsc
https://fedorahosted.org/sectool/browser/tests/removedlibs.sh

By: Alex

Alex — Fri, 10 Jul 2009 13:47:34 +0000

I don’t have code for this, and its probably not the best way to do it, but you could parse the contents of /proc/*/maps to collect a list of processes which have the library in question mapped in to their address space.

By: Pádraig Brady

Pádraig Brady — Fri, 10 Jul 2009 13:00:31 +0000

This is any open file in general right, not just libs?
I wonder could you cross reference deleted file from /proc?
I.E. see of any of `find /proc/[0-9]*/fd -follow -links 0 2>/dev/null` are the files you just installed.

By: Bob Bobson

Bob Bobson — Fri, 10 Jul 2009 12:48:07 +0000

Why should users have to restart just because they’re updated a library? Doesn’t everyone criticise Windows for that? Just restart the application.

By: glandium

glandium — Fri, 10 Jul 2009 12:17:58 +0000

Debian has checkrestart, but it’s in python.