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    SubjectRe: [PATCH v4 1/2] Provide in-kernel headers for making it easy to extend the kernel
    On Mon, 11 Mar 2019 20:39:12 -0400
    Joel Fernandes <joel@joelfernandes.org> wrote:

    > I think even though the kernel-headers can't have information about all data
    > structures, they do already contain a lot of data structure definitions we
    > need already. And anything needed can/should arguably be moved to include/ if
    > they are really needed for kernel extension by something "external" to the
    > kernel such as kernel modules or eBPF, right?

    That's not my worry. I would like to be able to easily walk data
    structures from within the kernel, without having to do a lot of work
    in userspace to get that information. The kprobe_events could then be
    passed type casts or such to access data fields of arguments to
    functions and such.

    >
    > In any case, such a solution such as what Steve suggested, still cannot do
    > what we can with headers - such as build kernel modules on the fly using the
    > C-compiler without any auto-generation of C code from any debug artifiacts.
    > Think systemtap working with the module-backend without any need for
    > linux-headers package on the file system. So such a solution would still be a
    > bit orthogonal in scope to what this proposed solution can solve IMO.
    >

    With the information I would like to have, it would be trivial to read
    the data to create the header files needed for modules.

    -- Steve

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