Yan Seiner wrote:
I've got a huge app that's got a bunch of functions that are not
used. I've found a few by hand but it's slow and tedious.
Is there some way to get gcc or helper app to tell me what and where
they are?
--Yan
The old way was to use lorder and tsort:
http://www.scit.wlv.ac.uk/cgi-bin/mansec?1+lorder
Nowadays, you may have to build and install some of this yourself.
Having made a bunch of .o files, sorting with this utility, the
unreferenced ones float to the top. Then you can remove them, and
recheck that you didn't remove anything which is required.
I guess the original purpose was to support a single pass loader, but
this also had advantages in getting better page locality, partly by
getting the unused modules out of the way.
