[fpc-devel] ppcrossx64 build on macOS darwin with ppca64 is failing

[David Jenkins]

I'm trying to build ppcrossx64 on my macOS darwin Tahoe apple silicon 
machine with a ppca64 built from fpc trunk and Xcode 26.6 and no Rosetta 
running.

Should I expect that to succeed?

I can get ppcx64 if I let Rosetta build it.  And using ppcx64 inside 
Rosetta I can build x86_64 binaries on my macOS machine.  However, I 
would like to be able to actually cross compile x86_64 on apple silicon 
without Rosetta involvement.

I am getting the following errors when pp.pas is being compiled:

/Users/djenkins/Source/BCTrunk/Lazarus/fpc/compiler/ppc -Ur -Xs -O2 -n 
-Fux86_64 -Fusystems 
-Fu/Users/djenkins/Source/BCTrunk/Lazarus/fpc/rtl/units/aarch64-darwin 
-Fix86_64 -FEx86_64/bin/aarch64-darwin -FUx86_64/units/aarch64-darwin 
-XR/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk -dRELEASE 
-dBC_FPC_BUILD -n @/Users/djenkins/Source/BCTrunk/Lazarus/fpc/../fpc.cfg 
-dlegacysocket -dLIBC_OLDERRNO    -dx86_64 -Fux86 -Fix86 -Sew 
-o/Users/djenkins/Source/BCTrunk/Lazarus/fpc/compiler/ppcrossx64 pp.pas
<stdin>:5227:9: error: expected compatible register or logical immediate
         mov     x1,w23
                    ^
<stdin>:5241:9: error: expected compatible register or logical immediate
         mov     x1,w23


I did some searching in the gitlab issues and didn't see anything related.

Happy to create a bug report in gitlab if needed.

Thanks
David Jenkins
david at scootersoftware.com