Re: [PATCH] 2.2: /proc/config.gz

From: Andi Kleen (ak@suse.de)
Date: Fri Sep 01 2000 - 07:10:16 EST


On Fri, Sep 01, 2000 at 02:04:44PM +0200, almesber@lrc.di.epfl.ch wrote:
> Andi Kleen wrote:
> > What you need is a bootloader than can read uncompressed vmlinux directly,
> > and use that for booting. Then you can always directly extract the System.map
> > out of the vmlinux using nm or gdb.
>
> And then pass this information to the soon to be running system via e.g.
> an initrd ? I'm not sure this is a lot more efficient, and you've just
> created yet another set of dependencies.

I'm not sure I understand the question. It would basically work like
booting in BSD or most other Unixes: the bootloader knows ext2 and
reads a filename that you pass as a command line option or a default
from /. That file name would be available in the environment that is
passed to init.

So nm $KERNELNAME should work usually to get the symbol table of the
currently running kernel.

> Also, I' very sceptical about anything that requires non-trivial updates
> to all boot loaders.

I guess a single bootloader that supports it optionally would be enough
for Daniel-Phillips-who-cannot-remember-where-he-put-his-System-maps ;)

Of course bzImage would still be the standard way to boot.

-Andi

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