Re: [Xen-devel] [PATCH] mkelf32: Correct sh_link

[John Levon <levon@xxxxxxxxxxxxxxxxx>]

On Wed, Jan 03, 2007 at 09:40:46PM +0000, Keir Fraser wrote:

> > I had in mind something very much like this, we'd just append the
> > symtab,strtab, and our debug info on to the image and set something to
> > point to the location. This was mostly a workaround of the difficulties
> > with building those sections straight into the file in the normal ELF
> > manner, though.
> 
> We could build them in as ordinary sections in our loadable xen image, but
> the bootloader wouldn't load them into memory for us let alone point us at
> them.

Unless I'm misunderstanding badly isn't this just a case of changing the
mapfile to stick them into the single program header.

> One nice thing about 'dumbly' appending xen-syms is that the whole image is
> then extractable to a file post-crash and can be manipulated by the
> developer independently of tools like RH's crash. It's also simple to
> implement and doesn't mess with the basic structure of our loadable Xen elf
> image (which has acquired various tweaks and workarounds for multiboot
> loader bugs).

It's perhaps a bit silly to have .text twice etc.though. I'm not
familiar with the tweaks you mention so I'm sure you're right there.

john

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