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Hello,

[ please CC me any replies ]

A while ago someone fixed the i386 kernel linker script to generate
the proper physical addresses for the segments in the binary image.
This change allowed the use of unpatched GRUB to boot NetBSD kernels
using the Multiboot option.  Unfortunately the fix was incomplete
because ksyms do not work with unpatched GRUB (which means "broken"
ddb and no lkms).  That's basically because of some nasty tricks used
in our Multiboot code.

The attached patch fixes this issue by dealing with the ksyms in the
Multiboot case in a cleaner way.  (Yes, martin@, I finally implemented
your suggestions!  Or at least I think so.)  What it does is correctly
copy the symbol table after the kernel (without having to reserve
space beforehand, which is what unpatched GRUB did not do) and gets
rid of the need to generate a fake minimal ELF image to get ksyms_init
working.  The result is a simpler implementation.

The patch still needs some cleanup and testing in the non-Multiboot
case which I'll do tomorrow or so.  But in the meantime I'd like to
hear comments about the proposed solution.

Thank you.

-- 
Julio M. Merino Vidal <jmmv84@gmail.com>
The Julipedia - http://julipedia.blogspot.com/

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