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

[David Jenkins]

That error was generated when I tried building ppcross64x from my 
bootstrap ppca64-3.2.2 compiler.

If I first use ppca64-3.2.2 to build a trunk ppca64-3.3.1 and then use 
that to build ppcrossx64, I do get a ppcrossx64 built but then when it 
tries to build the rtl it fails with

/Users/djenkins/Source/BCTrunk/Lazarus/fpc/compiler/ppcrossx64 
-dFPC_USE_LIBC -Px86_64 -XX -CX -Ur -Xs -O2 -n -Fi../inc -Fi../x86_64 
-Fi../unix -Fi../bsd -Fi../bsd/x86_64 -Fi../darwin/x86_64 -FE. 
-FU/Users/djenkins/Source/BCTrunk/Lazarus/fpc/rtl/units/x86_64-darwin 
-dBC_FPC_BUILD -n @/Users/djenkins/Source/BCTrunk/Lazarus/fpc/../fpc.cfg 
-dlegacysocket -dLIBC_OLDERRNO -dx86_64 -dRELEASE  -Us -Sg ../bsd/system.pp
genmath.inc(606,5) Fatal: Internal error 2014051001
Fatal: Compilation aborted
make[5]: *** [system.ppu] Error 1
make[4]: *** [fpc_smart] Error 2
make[3]: *** [darwin_smart] Error 2
make[2]: *** [rtl_smart] Error 2
make[1]: *** [build-stamp.x86_64-darwin] Error 2
make: *** [crossinstall] Error 2
/Applications/Xcode-26.6.app/Contents/Developer/usr/bin/make -C compiler 
distclean
<stdin>:76571:1: error: assembler local symbol 'Ld23' not defined

^
<stdin>:76571:1: error: assembler local symbol 'Ld8' not defined

Which is different than the 200308299 error you saw but the above was 
with -O2.

I'll create a gitlab bug report.



On 8/31/26 1:04 PM, Karoly Balogh via fpc-devel wrote:
> Hi,
> 
> On Mon, 31 Aug 2026, David Jenkins via fpc-devel wrote:
> 
>> 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?
> 
> Yes. Or at least fail with a meaningful error message, and not with what
> you got.
> 
>> 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.
> 
> Please do so. This looks like a genuine bug in the ARM64 codegenerator, I
> managed to reproduce it. Without the optimizer enabled (-O- argument), it
> actually runs into an internal error 200308299.
> 
> Charlie
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