[ILUG] How much is Linux used?

[Brian Foster]

  | Date: Sun, 7 Aug 2005 21:04:01 +0100 (IST)
  | From: Paul Jakma <paul at clubi.ie>
  | 
  | On Sun, 7 Aug 2005, Brian Foster wrote:
  | > (except in the ultra-small memory or hard-realtime arenas?).
  | 
  | There's "eCos" though, a RT tiny OS for micro's:
  |  	http://ecos.sourceware.org/

 yes, I am aware of eCos.  the discussion was about Linux.
 I quote the eCos FAQ:

   “As eCos originated from Red Hat, probably most famous
    for its distribution of the Linux Operating System,
    it has become a common misconception that eCos is Linux
    or in some way based on Linux.  However eCos is a
    completely separate product, with a separate source base.”
     — http://ecos.sourceware.org/fom-serv/ecos/cache/20.html

 so what is yer point?

 eCos is not the only tiny RTO/S, albeit off the top of
 my head I cannot think of another one which is FOSS.
 the eCos FAQ goes to claim something which is rather
 typical of many RTO/Ses these days; namely, support for
 POSIX.1a-like APIs (ISO standard C API is de rigour):

   “eCos does have an EL/IX level 1 compatibility layer though,
    allowing it to be compatible with many of the Linux APIs.”

 the discussion can now return to Linux.  which is not
 making inroads as either a tiny RTO/S or a hard-RT O/S.
 (Montavista, at least, is supporting/driving work on
 improving the determinability of Linux, and in general
 on improving its hard-RTness.)

cheers!
	-blf-
-- 
Experienced (20+ yrs) kernel/software Eng: | Brian Foster   Montpellier,
 • Unix, embedded, &tc;  • Linux;  • doc;  | blf at utvinternet.ie   FRANCE
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