From: "Gordon W. Ross" <gwr>
Date: Tue, 3 Oct 95 16:37:39 EDT
Subject: New ramdisk, tiny shell, etc.
[ edited since the original mail ]
As part of my efforts to build a RAM-disk root kernel for the
sun3 port, I've developed some things that others may want:
(Also, please see my questions at the end.)
New RAM-disk: [ see sys/dev/ramdisk.c ]
New "small/tiny" tools, to replace some of the larger
programs that one usually wants on a ramdisk root:
ssh: (small shell)
* Consumes only about 8K of memory on an m68k!
(saves about 100K in the ramdisk...)
* Can run programs, possibly with I/O redirection
* Just enough to let you run the programs needed
while partitioning and copying miniroot to swap.
tls: (tiny ls)
* Consumes only about 4K of memory on an m68k!
(saves about 10K in the ramdisk...)
* Long format only, nothing fancy.
Also, in the new "src/distrib/utils" area, I've made build
directories for some programs that build smaller versions,
usually by adding special CFLAGS
init_s: (built with -DLETS_GET_SMALL)
* Forces single-user mode
* Eliminates unnecessary code
libhack: small implementation of some libc functions
* Needs only /etc/passwd (not pwd.db, spwd.db)
* Reduces size of an m68k crunched binary about 64K
x_dd: built with -DNO_CONV (no conv=* options)
x_ifconfig: supports inet only
The x_ prefix on the above is to make the names unique so
crunchgen will not confuse them with the real sources.
f75c79d821