[fpc-devel] Building 2.1.4 for SPARC/Linux

[Jonas Maebe]

On 04 Jul 2007, at 17:13, Mark Morgan Lloyd wrote:

> /usr/src/fpc/fpcbuild-2.1.4/fpcsrc/compiler/ppc3 -Ur -Xs -O2 -n - 
> Fusparc -Fusystems -Fu/usr/src/fpc/fpcbuild-2.1.4/fpcsrc/rtl/units/ 
> sparc-linux -Fisparc -FE. -FUsparc/units/sparc-linux -dRELEASE  - 
> dsparc -dGDB -dBROWSERLOG  pp.pas
> /bin/mv -f ./pp ppcsparc
> make[5]: Leaving directory `/usr/src/fpc/fpcbuild-2.1.4/fpcsrc/ 
> compiler'
> make echotime
> make[5]: Entering directory `/usr/src/fpc/fpcbuild-2.1.4/fpcsrc/ 
> compiler'
> Start now 14:04:23
> make[5]: Leaving directory `/usr/src/fpc/fpcbuild-2.1.4/fpcsrc/ 
> compiler'
> make[4]: Leaving directory `/usr/src/fpc/fpcbuild-2.1.4/fpcsrc/ 
> compiler'
> /usr/bin/
> Binary files ppc3 and ppcsparc differ
> make[3]: *** [cycle] Error 2
> make[3]: Leaving directory `/usr/src/fpc/fpcbuild-2.1.4/fpcsrc/ 
> compiler'
> make[2]: *** [compiler_cycle] Error 2
> make[2]: Leaving directory `/usr/src/fpc/fpcbuild-2.1.4/fpcsrc'
> make[1]: *** [build-stamp.sparc-linux] Error 2
> make[1]: Leaving directory `/usr/src/fpc/fpcbuild-2.1.4/fpcsrc'
> make: *** [fpcsrc/build-stamp.sparc-linux] Error 2
>
> Anybody got any suggestions please?

There are none for this particular problem. I've done a lot of sparc  
fixes after 2.1.4 was released and this problem is now rarer, but  
still occurs every now and then. It's caused by indeterminism in the  
register allocator. See
http://www.freepascal.org/mantis/view.php?id=8121

I haven't seen it happen at all lately in 2.3.1, but I have no idea  
why that is (and whether this is pure coincidence, whether the bug is  
still there but somehow hidden by other code, or whether it is  
actually fixed there.


Jonas