Re: [PATCH RFC 6/7] i386: make the bzImage payload an ELF file

From: H. Peter Anvin
Date: Wed Jun 06 2007 - 20:09:21 EST


Jeremy Fitzhardinge wrote:
>
> I'm not sure I fully understand the mechanism you're proposing. You
> have the 16-bit setup code, the 32-bit decompressor, and an ELF.gz. Once
> the decompressor has extracted the actual ELF file, are you proposing
> that it properly parse the ELF file and follow its instuctions to put
> the segments in the appropriate places, or are you assuming that the
> decompressor can just skip that part and plonk the ELF file where it wants?
>
> In other words, do you see the Phdrs as being descriptive or prescriptive?
>

I was thinking prescriptive, having the decompressor read the output
stream and interpret it as ELF. I guess a descriptive approach could be
made to work, too (I haven't really thought about that avenue of
approach), but the prescriptive model seems more powerful, at least to me.

-hpa
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