From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on polar.synack.me X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham autolearn_force=no version=3.4.4 X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 103376,be0ffa00e7ee1ac6 X-Google-Attributes: gid103376,public X-Google-ArrivalTime: 2002-04-29 22:34:17 PST Path: archiver1.google.com!news1.google.com!newsfeed.stanford.edu!news-spur1.maxwell.syr.edu!news.maxwell.syr.edu!newspeer.monmouth.com!newscon02.news.prodigy.com!newsmst01.news.prodigy.com!prodigy.com!postmaster.news.prodigy.com!newssvr12.news.prodigy.com.POSTED!not-for-mail From: James Ross Newsgroups: comp.lang.ada Subject: Re: An OS in Ada, why not RTEMS ? Message-ID: References: X-Newsreader: Forte Agent 1.8/32.548 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit NNTP-Posting-Host: 65.65.180.34 X-Complaints-To: abuse@prodigy.net X-Trace: newssvr12.news.prodigy.com 1020144819 ST000 65.65.180.34 (Tue, 30 Apr 2002 01:33:39 EDT) NNTP-Posting-Date: Tue, 30 Apr 2002 01:33:39 EDT Organization: Prodigy Internet http://www.prodigy.com X-UserInfo1: S[OGR^OGDH@SP_T[LJJ\OPLI[B]NQHQIKYYDMREK@YWZUYUBK^RAAEW[QDZ\YQ_IT^C_[EVLDV^NOMOBFFTINWDGGFTKX_DHE@[DRVKC^DQPPOD^HKAHIP[CODFMKGJNYDYIZCZLPI_UWEGS@D^W^B_^J[Y^G\KHBYZC@ESAY[FDPVPEGDA^M]@D]VT_QQVL Date: Tue, 30 Apr 2002 05:33:39 GMT Xref: archiver1.google.com comp.lang.ada:23256 Date: 2002-04-30T05:33:39+00:00 List-Id: >> We need those machine language bytes that are in the .lst file with >> the proper address of the _system__storage_elements__to_address >> subroutine along with the subroutine ml code itself in a .bin file. >> Not an ELF, not a PE, not a .o, not a .lst, But a raw binary file. >> >> CAN WE DO THAT? > >Yes, we can, several people have done this already (me included). Actually, >what's wrong with ELF? GRUB(http://www.gnu.org/software/grub/) can load it. >But if you still want a .bin, I believe it is possible to get it using GNU >binutils. However, the hard question seems to be "what now?" My idea *was* to just support a raw binary executable image that not only the kernel would be in, but other programs that could be loaded and executed by the kernel. (Perhaps I needed more info on this issue, but I *was* certain it would be possible). If I were willing to dig into the details of ELF to support loading it right away, then I might as well chose PE ... since I prefer to use GNAT from (my main computer) Windows XP. (And of course GNAT on Windows cannot create ELFs.) I still don't use Linux as my main computer - but that is a whole other issue :) As for the initial boot process and the ELF issues -- understand that what I have been saying is how I *was* going to tackle the process if it were up to me. I have all but given up at this point. If I were to help someone else, then the design would be whatever basically exists and works for that person(s) ... I would be willing to work on a Linux box (I am not allergic to it!) and support whatever version of an Ada OS emerges ... JR