steve@robobar.co.uk (Steve Bleazard) (03/19/90)
I have taught GCC and GAS to produce .o files which are usable
under SCO Xenix 386.
Relevant information:
* Currently, the patches are relative to GCC 1.37 and GAS 1.34.
* requires Microsoft C 5.1 for 386 (SCO lng 085 or better) for stage 1
build.
* Produces Microsoft C compatible OMF object files.
* Links with the standard Xenix 386 libraries (at least it does with
my 2.3 dev. sys. libraries) using the standard ld(C) to produce
x.out files executable by SCO Xenix 386.
* GCC compiles itself (with -O) comparing .o files with no differences
between stage 3 and stage 4. (Yes, you can just do cmp file1.o file2.o)
* compiles perl release 3.0 patchlevel 15 and runs all the tests
successfully, but not with -O (That makes it core dump :-( )
(Had to use -fpcc-struct-return to make it pass op.dbm test)
My system:
SCO Xenix 2.3.2 with 2.3 dev sys and lng 085.
I've compiled it with only 2 Mb of core in the box, but that makes
it swap just a bit. It's fine now (there's 8 Mb in it today :-).
Patch availability:
If there's enough interest, I'll post the patches to alt.sources
next week or so. No, I'm not mailing them overseas, Eunet costs
are low, but not _that_ low.
I will mail them to archive sites, if asked.
--
Steve.Bleazard@RoboBar.Co.Uk | Phone: +44 1 991 1142 x153
Snr Software Engineer, Robobar Ltd. | Fax: +44 1 998 8343 (G3)
22 Wadsworth Road, Perivale. |
Middx., UB6 7JD ENGLAND. | ...!ukc!ibmpcug!robobar!stevesteve@robobar.co.uk (Steve Bleazard) (03/23/90)
In article <1990Mar19.134213.20819@robobar.co.uk> I wrote: [ concerning the imminent posting of the patches to make GCC/GAS work unde SCO Xenix 386 ] The first of two coordinated patches is now out, posted to alt.sources. The second will come after lunch. > * Currently, the patches are relative to GCC 1.37 and GAS 1.34. In fact, the gas patch works relative to gas 1.35 as well, and we just built GCC 1.37.1 with no changes to the GCC patch. > * compiles perl release 3.0 patchlevel 15 and runs all the tests > successfully, but not with -O (That makes it core dump :-( ) Fixed. Perl 3.0pl15 compiled with gcc -O now passes all tests. Guess what has just become my default compiler ? > If there's enough interest, I'll post the patches to alt.sources > next week or so. There was adequate interest. You don't need to mail me anymore if all you want to do is express interest. There was also some call for a binary distribution. I am not on the Internet, and e-mail costs from Britain to anywhere else is prohibitively high. Those who are _desperate_ may mail me a single 1.2 Mb floppy WITH AN EXTRA SELF-ADDRESSED MAILER ENCLOSED, and I'll stick a binary distribution on it and send it back to you by return of post (aren't I nice). I would also be interested to hear if you could provide Internet and/or anon UUCP homes for the both patch and binary distributions in your respective countries so I can refer people to you. To quote Len, Enjoy! -- Steve.Bleazard@RoboBar.Co.Uk | Phone: +44 1 991 1142 x153 Snr Software Engineer, Robobar Ltd. | Fax: +44 1 998 8343 (G3) 22 Wadsworth Road, Perivale. | Middx., UB6 7JD ENGLAND. | ...!ukc!ibmpcug!robobar!steve
ronald@robobar.co.uk (Ronald S H Khoo) (03/24/90)
In article <1990Mar23.090407.11111@robobar.co.uk> steve@robobar.co.uk (Steve Bleazard) writes: [ concerning his GCC port to Xenix ] Hmm, My proofreading isn't as good as it was :-( One thing that got left out of the README was: Behaviour of -m80387 flag is a little non-intuitive. If you specify -m80387, the symbol __fltused is emitted whether or not floating point instructions are generated. In this case, floating point opcodes are generated inline. The correct printf is therefore loaded and the program works. If you do _not_ specify -m80387, but you _do_ have floating point operations in your code, GCC will make calls to routines in its gnulib, which themselves cause __fltused to be required, and again, all works OK, albeit a little slower. If, however, -m80387 is NOT specified and you DON'T have any floating operations which call gnulib floating ops, then the non-float compatible printf will be loaded, and the program won't work. Example: % cat x.c main() { printf("%f\n", 1.0); } % gcc x.c % ./a.out f % gcc -m80387 x.c % ./a.out 1.000000 So, if you need to print floating point numbers, you _may_ need to say -m80387. You might as well say -m80387 ANYWAY. The cost is about 5k if you don't have any float stuff (peanuts!). This will be the default if you #define TARGET_DEFAULT to 1 in tm.h (config/tm-xenix386.h) In this case, -msoft-float will force the use of gnulib and not emit __fltused. Ho Hum. -- Eunet: Ronald.Khoo@robobar.Co.Uk Phone: +44 1 991 1142 Fax: +44 1 998 8343 Paper: Robobar Ltd. 22 Wadsworth Road, Perivale, Middx., UB6 7JD ENGLAND.
klarich@a.cs.okstate.edu (Terry Klarich) (03/24/90)
I am very interested in those patches. Please, by all means, post them as soon as possible. ------------------------------------------------------------------------------ Terry Klarich (klarich@a.cs.okstate.edu) n5hts A man is not complete until he is married then, he is finished.
jeff@hobbes.C2S.MN.ORG (Jeff Holmes) (03/26/90)
In article <1990Mar23.090407.11111@robobar.co.uk> steve@robobar.co.uk (Steve Bleazard) writes: > In article <1990Mar19.134213.20819@robobar.co.uk> I wrote: > > [ concerning the imminent posting of the patches to make GCC/GAS work > unde SCO Xenix 386 ] > > The first of two coordinated patches is now out, posted to alt.sources. > The second will come after lunch. This is great! Anyone looked at GDB yet? -- Jeff Jeff Holmes DOMAIN: jeff@questar.mn.org Questar Data Systems UUCP: amdahl!bungia!questar!jeff St. Paul, MN 55121 AT&T: +1 612 688 0089
ron@rdk386.uucp (Ron Kuris) (03/28/90)
In article <5378@questar.QUESTAR.MN.ORG> jeff@hobbes.QUESTAR.MN.ORG (Jeff Holmes) writes: > > This is great! > > Anyone looked at GDB yet? > Yup. I've successfully ported GDB to Xenix. Works on the standard cc. Even reads the debugging information. I want to implement partial symtabs for it before it goes out (seems too slow starting up). If you're interested in the preliminary patches, I might be able to accomodate you. I am very interested in the alt.sources gas/gcc patches. I missed them on alt.sources. Can someone close by arrange to mail them to me? /-----------------------------------\/\/\/\ | {unify|{sactoh0!siva}}!rdk386!ron | o o | | Cut this out and present it to me | - | | for a FREE $20.00 bill! Expires | awk | | upon presentation. | | \-----------------------------------/ \ -- /-----------------------------------\/\/\/\ | {unify|{sactoh0!siva}}!rdk386!ron | o o | | Cut this out and present it to me | - | | for a FREE $20.00 bill! Expires | awk |