Access to kmem - System namelist - '
jab at uokvax.UUCP
jab at uokvax.UUCP
Tue Dec 18 15:11:00 AEST 1984
/***** uokvax:net.unix-wizar / fortune!olson / 11:54 pm Dec 1, 1984 */
At Fortune Systems, we took a somewhat different approach. What we
did was to fix forever in low core the important variables (or
pointers thereto, in the case of tables such as the proc table.)
/* ---------- */
Yet another way (one that I don't happen to agree with) that one Unix
does it is to have a magic system call:
getsyms(not its real name) returns the values of the addresses
of the proc/inode/... tables.
I believe that people at the Purdue/ECN (where I first heard about this
kind of thing) realized a significant increase in speed when they wrote
"/dev/proc" and "/dev/inode" as specialized cases of the "/dev/kmem" code.
Jeff Bowles
Lisle, IL
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