Thanks for the answers, I have submitted issue https://gitlab.com/freepascal.org/fpc/source/-/issues/40229 describing how to reproduce the problem.
Hopefully it can get some attention :) I would very much like to add "web" target to CGE, to be able to just run CGE games in a browser. It's going to be my highest-priority thing after upcoming CGE 7.0 release. Regards, Michalis czw., 30 mar 2023 o 21:11 Nikolay Nikolov via fpc-devel <[email protected]> napisał(a): > > > On 3/28/23 02:12, Michalis Kamburelis via fpc-devel wrote: > > Hi, > > > > We're experimenting with compiling Castle Game Engine using FPC > > WebAssembly target. > > > > A lot of units and classes compiled smoothly, however we hit a weird > > bug(s) at compiling our (big, too big!) unit X3DNodes. We get errors > > "Wasm32 symbol xxx without index value error" at the code trying to > > use various property setters or methods. Examples: > > > > x3dcamerautils.pas(344,0) Error: Wasm32 symbol > > X3DFIELDS$_$TSFROTATION_$__$$_SETVALUE$TGENERICVECTOR4 without index > > value error > > > > // where TSFRotation.Value is a property with record type, with getter > > and setter methods > > > > x3dcamerautils.pas(344,0) Error: Wasm32 symbol > > X3DFIELDS$_$TX3DSIMPLEMULTFIELD$3$CRCD1E2ED59_CRCAB5A7799_$__$$_GETITEMS$$TSINGLELIST > > without index value error > > > > // where TX3DSimpleMultField.GetItems is a method of a generic class) > > > > x3dcamerautils.pas(344,0) Error: Wasm32 symbol > > X3DFIELDS$_$TSFFLOAT_$__$$_SETVALUE$SINGLE without index value error > > x3dcamerautils.pas(344,0) Error: Wasm32 symbol > > > > // where TSFFloat.SetValue is a simple setter for a Single property, no > > generics > > > > castlescenecore.pas(8822,0) Error: Wasm32 symbol > > CASTLESHAPEINTERNALSHADOWVOLUMES$_$TSHAPESHADOWVOLUMES_$__$$_PREPARERESOURCES > > without index value error > > > > // where TShapeShadowVolumes.PrepareResources is a simple method, > > without any parameters, in a simple non-generic class > > > > Weirder, on another machine, the symbols reported contain some exe > > filenames at the place of initial "$_$" (maybe independent compiler > > bug at message display?): > > > > x3dloadinternalgeo.pas(234,0) Error: Wasm32 symbol > > X3DFIELDS/usr/bin/dbus-update-activation-environmentTSFFLOAT_$__$$_SETVALUE$SINGLE > > without index value error > > > > x3dloadinternalgeo.pas(234) Error: Wasm32 symbol > > X3DFIELDS/home/michalis/bin/castle-engineTSFFLOAT_$__$$_SETVALUE$SINGLE > > without index value error > > > > Sometimes the errors can be workarounded by some simple actions -- > > like moving the property getter/setter protected->private, or avoiding > > the call to that particular method. But the solutions, as well as > > causes, seem ~random from our perspective. And all in all, we didn't > > finish the compilation of X3DNodes unit because after each > > fix/workaround/hack for a specific case, another similar error pops > > up. > > > > Grepping FPC for the asmw_e_illegal_unset_index (this is "Wasm32 > > symbol $1 without index value error"), the error can occur when symbol > > cannot be found in the list where compiler expected it to be. > > > > We don't have any simple bugreport about it (yet), as the error really > > manifests only in a big unit, that is interconnected with a few other > > big units. Isolating the testcase (and/or doing much needed refactor > > of this unit :) ) will take a while. > > > > Does anyone have a hint: > > > > - What does this error really mean? What is internally wrong at > > compilation to cause it? What could be the culprit? > > > > - Is there some universal workaround for it (on CGE side) or fix on > > the compiler side? > > > > Even a vague hint could at least help us prepare an isolated > > bugreport, because otherwise we have a rather big chunk of code to > > dissect in order to provide a simple FPC testcase :) > > Even a big unit is fine for a bug report, as long as all the code is > publicly available for download. If you can't seem to get it to > reproduce with a small test case, you can mention in the bug report that > you tried, but didn't succeed and still provide the full code needed. > AFAIK, the Castle Game Engine is open-source, so this shouldn't be a > problem? > > Nikolay > > > > > Regards, > > Michalis > > _______________________________________________ > > fpc-devel maillist - [email protected] > > https://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-devel > _______________________________________________ > fpc-devel maillist - [email protected] > https://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-devel _______________________________________________ fpc-devel maillist - [email protected] https://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-devel
