Hello together!
With revision 26849 which I just committed a few minutes ago an imporant
milestone was reached for reviving the M68k port: the cross compiled
compiler is now not only able to compile a program, but this program is
also able to run correctly!
See here:
=== shell begin ===
$ cat ./fpctests/helloworld.pas
program helloworld;
begin
Writeln('Hello World');
end.
$ ../run-qemu-m68k ./compiler/ppc68k -iSPSO
m68k linux
$ ../run-qemu-m68k compiler/ppc68k -n -Furtl/units/m68k-linux -viwn
-Cpisac -O- -FEtestoutput -XPm68k-elf- -sh ./fpctests/helloworld.pas
$ ./testoutput/ppas.sh
Assembling helloworld
Linking testoutput/helloworld
m68k-elf-ld: warning: testoutput/link.res contains output sections; did
you forget -T?
$ ../run-qemu-m68k ./testoutput/helloworld
Hello World
=== shell end ===
Notes:
- run-qemu-m68k is a shell script that calls qemu-m68k which allows me
to run m68k-linux binaries on my x86_64 linux system (works on any other
Linux architecture supported by QEMU as well) [this is QEMU's user space
emulation]
- I need to use -sh (thus generating the ppas.sh script), because QEMU
does not seem to allow me to exec a non m68k program
That the compiler is now working shows already that the work Charlie and
me have done on the code generator has finally paid of and that it's
nearing production quality again. There are still around 210 test suite
errors for the full suite, but quite some are related to the one main
problem that still exists: linking to libraries. Once Charlie and/or me
have managed to set up the necessary C libraries we can fix this problem
to have the m68k port reach the state of the old times again. :D
After that the main work on m68k will switch to optimizations and
maybe/likely revival of other m68k RTLs (Amiga, Atari, Mac OS, NetBSD)
:D Of course an embedded target will be a nice to have as well ;)
Regards,
Sven
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