26 Jun
2019
26 Jun
'19
1:42 a.m.
On Jun 25, 2019, at 12:33 PM, Norman Wilson <norman(a)oclsc.org> wrote:
It's interesting that this comment about ptrace was written
as early as 1980.
Ron Minnich's reference to Plan 9 /proc misses the mark, though.
By the time Plan 9 was written, System V already had /proc; see
https://www.usenix.org/sites/default/files/usenix_winter91_faulkner.pdf
And as the authors say, the idea actually dates back to Tom Killian's
/proc in Research UNIX. I don't know when Tom's code first went
live, but I first heard about it by seeing it in action on my first
visit to Bell Labs in early 1984, and it was described in public in
a talk at the Summer 1984 USENIX conference in Salt Lake City.
I cannot quickly find an online copy of the corresponding paper;
pointers appreciated. (Is there at least an online index of BTL
CSTRs? The big search engine run by the place that still has
some 1127 old-timers can't find that either.)
http://lucasvr.gobolinux.org/etc/Killian84-Procfs-USENIX.pdf