Re: External debug symbols

[Alexander Larsson <alexl at redhat dot com>]

On Mon, 23 Sep 2002, Daniel Jacobowitz wrote:

> On Mon, Sep 23, 2002 at 11:21:51AM -0400, Alexander Larsson wrote:
> > > Once this is done, this change would need to be documented in the gdb
> > > manual, and a testcase added to the testsuite.
> > 
> > I really tried to make a testcase. I promise. I was just completely 
> > crushed by expect/dejagnu and the testsuite setup. I have a small piece of 
> > code that can be used with objcopy --add-section to generate a 
> > .gnu_debuglink section to test this. I tried it manually, and it works 
> > well. If anyone is willing to do the testsuite work I promise to help as 
> > much as I can.
> 
> If you'll send me that, when this code has settled and been committed
> I'll try to handle the testsuite.
> 

Thanks. I attached the code.

A simple test is:
cp binary binary.debug
debug-link < binary.debug > binary.debugling
objcopy --add-section .gnu_debuglink=binary.debuglink binary binary.stripped
strip binary.stripped

After that you should be able to do gdb binary.stripped and still get 
debug info.

I also have some libelf based code to do the stripping which is much more 
production oriented. This is what we'll use later.

-- 
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
 Alexander Larsson                                            Red Hat, Inc 
                   alexl@redhat.com    alla@lysator.liu.se 
He's an underprivileged dishevelled grifter with a winning smile and a way 
with the ladies. She's a disco-crazy motormouth queen of the dead from out of 
town. They fight crime!

Attachment: debug-link.c
Description: Text document