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

From: Philipp Rumpf (prumpf@parcelfarce.linux.theplanet.co.uk)
Date: Sat Sep 02 2000 - 12:29:00 EDT

  • Next message: Silvio Cesare: "error in arch/i386/kernel/ptrace.c (subtle)"

    On Fri, Sep 01, 2000 at 01:28:08PM +0100, Alan Cox wrote:
    > > On Fri, Sep 01, 2000 at 02:23:57PM +0200, almesber@lrc.di.epfl.ch wrote:
    > > > I don't see the advantage over Alan's proposal of simply adding the
    > > > config data to the bzImage or whatever is the most common format on
    > > > the respective platform. You still have the same fundamental problem
    > > > to solve (i.e. accessing the file), plus you may need to extend the
    > > > boot loader(s) to support a new format ...
    >
    > My goal would be to ensure that the bootloader didnt need to be modified.
    > It seems to work fine if you blindly tack junk on the end of a bzImage

    We still load it into memory during boot then but overwrite it with the
    uncompressed kernel. This means it might not be a great idea for 16 MB
    of additional data but for .config it souhld be fine.

    > As to the tool argument - looking for a 16byte magic key sequence and printing
    > the rest is not hard.

    in fact you can do
            cat .config.gz >> bzImage
            echo >> bzImage
            echo $(wc -c .config.gz) >> bzImage

    and seek to the right offset directly.

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