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ELF executable relinking
- From: Francesco Casadei <francesco dot casadei at gmail dot com>
- To: binutils at sourceware dot org
- Date: Wed, 13 Apr 2005 11:50:33 -0400
- Subject: ELF executable relinking
- Reply-to: Francesco Casadei <francesco dot casadei at gmail dot com>
Hi all,
I have a simple question I couldn't answer searching the archives or
googling the
web or groups, so here I am.
Basically, I want to add new unrelated code to an existing ELF executable
ET_EXEC), by relinking it with a relocatable object (ET_REL).
Is it possible to input an executable and one or more relocatable
object to the link
editor and generate a new executable with code and data from all objects?
I tried it but it didn't work, I get 'multiple definition errors'
(related to symbols which
marks the .dynamic and .got sections). I also tried preserving the relocation
information within the executable, stripping the duplicate symbols,
link with/without
libc (already linked to the old executable). Nothing seems to work.
The best result I got is a "successfull" relink and segmentation fault.
Please CC me as I'm not subscribed to the list. Thank you.
Regards,
Francesco Casadei