[RFC] loader relocation

[Robert Millan]

As discussed on two other threads, this patch is a proof of concept of
relocation in the loader.

Some comments:

  - grub_protected_malloc() is like malloc, but with the garantee that
    it won't overlap with a particular region.  Do you think this is the
    right approach?  Should this be kept as a layer on top of the memory
    manager, like now, or rather be integrated with it to take advantage of
    its internal knowledge?  I find that the current implementation is an
    ugly hack...

  - This works for multiboot only.  How far can we go at making it more
    generic?  At least the malloc part should be;  not sure about the rest.

  - The phdr(i) hack can be committed separately in case we decide that it
    is necessary for this feature (or just convenient for readability).  It's
    described at:

    http://www.mail-archive.com/address@hidden/msg03517.html

-- 
Robert Millan

<GPLv2> I know my rights; I want my phone call!
<DRM> What use is a phone call… if you are unable to speak?
(as seen on /.)

loader_relocation.diff
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