Subject: Re: /dev/ksyms
To: Wolfgang Solfrank <email@example.com>
From: Todd Vierling <firstname.lastname@example.org>
Date: 01/25/1999 10:38:13
On Mon, 25 Jan 1999, Wolfgang Solfrank wrote:
: > Using LKMs without having /usr available; building LKMs as
: > position-independent code ("shared objects" in the kernel). Two uses I can
: > think of...
: The first one can surely be addressed by having the linker in /, no need
: to have it in the kernel, or what?
Not necessarily. If your / doesn't contain the currently-booted kernel
file, or at least /netbsd doesn't correspond to it, and you need LKMs in
order to mount /usr ....
: The second one looks even more bogus to me. What gain would "shared objects"
: in the kernel be? Shared objects are meant to be just that, _shared_.
: What would the kernel share these objects with?
That's why it is in quotes. Position independent code allows for easier
linking into the kernel; you only "link" it once, and just "relocate" it
when loading the kernel. They aren't "shared" objects per se.
-- Todd Vierling (Personal email@example.com; Bus. firstname.lastname@example.org)