Re: Query about initramfs and modules

From: H. Peter Anvin (hpa@zytor.com)
Date: Wed Jan 16 2002 - 15:23:13 EST


Erik Andersen wrote:

>>>
>>Yeah! Let's put all this crap in KERNEL SPACE! *NOT!*
>>
>
> Good point. We surely wouldn't want to have an ELF interpreter
> in kernel space. That would be evil!
> rm linux/fs/binfmt_elf.c
> There, thats better, now userspace can load everything. If we
> can figure out how to get userspace loaded....
>
> The kernel already knows how to load ELF files, and _has_ to do
> that job to get userspace running anyways. So why not use that
> mechanism for modules?
>

Because it's not the same mechanism at all. insmod is an ELF *LINKER*,
not just a loader for executable-format ELF files. There is a huge
difference between a linkable and an executable ELF file; a module is the
former, a binary executable is the latter.

        -hpa

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