Use of objcopy prevents prelink to work on Linux

From: Markus Schöpflin (markus.schoepflin_at_[hidden])
Date: 2005-07-14 08:25:18

Hello,

I just discovered that I cannot prelink a dynamic library produced by bbv1. 
The system I tried this on was RHEL 3. The error message I got was:

prelink: ... section file offsets not monotonically increasing

After a lot of head scratching, I decided to disable the use of objcopy in 
gcc-tools.jam, et voila, now prelink works.

This leaves me wondering why objcopy is used at all. I found some reference 
on this ML to a linker performance problem that this should fix, but I 
wasn't successful in digging up more info.

Is objcopy still needed? I don't seem to get any noticable speed benefit 
when it's used. Is there some way to disable the use of objcopy, besides 
creating a new tools file?

Markus