Hi all,
I was trying to use the Wasm/embedded target to port a game i made some time ago[0] to WebAssembly to run inside a browser, but i am getting a bunch of errors that i can't figure out the issue. When compiling with the embedded wasm assembler i get errors like:
SndEmit.pas(171) Error: Wasm32 symbol
RESMAN/home/badsector/.local/bin/fpcTRESOURCEMANAGER_$__$$_GETRESOURCE$ANSISTRING$$TRESOURCE without index value error
SndEmit.pas(171) Error: Wasm32 symbol
SNDDRV/home/badsector/.local/bin/fpcTSOUNDDRIVER_$__$$_SETCHANNELCLIP$LONGINT$TSOUNDCLIP$BYTE without index value error
(more errors)
However i'm not sure if it is the internal assembler issue because using, e.g. llvm-mc-12 i get other errors like:
./Engine/Misc.wat:7340:3: error: symbol
MISC$_$TSTRINGKEYVALUESET_$__$$_INDEXOFKEY$ANSISTRING$$LONGINT missing .functype
call
MISC$_$TSTRINGKEYVALUESET_$__$$_INDEXOFKEY$ANSISTRING$$LONGINT ^
./Engine/Misc.wat:7670:3: error: symbol
MISC$_$TSTRINGKEYVALUESET_$__$$_INDEXOFKEY$ANSISTRING$$LONGINT missing .functype
call
MISC$_$TSTRINGKEYVALUESET_$__$$_INDEXOFKEY$ANSISTRING$$LONGINT
Trying other assemblers i get other errors too, e.g. wabt/wasa displays a bunch of "stream read error" messages and then fails to link.
Does anyone have any idea about what is wrong?
This is running on Linux with a custom built crosscompiler from latest git (last commit is 6915cd9b269649ca945a4fc952ee7dedb1b38b85 - Thu Jul 21 14:01:50).
I've stripped out the game's sources to only contain the units that i try to compile, you can get it and try to reproduce the issue from here (the archive is ~660KB):
http://runtimeterror.com/pages/badsector/nyan/gimme/papwasm.tar.xz
Just type ./makewasm.sh (the script uses -Awasm here but can be changed to try other assemblers). Note that obviously this wont build since it is missing any wasm-specific functionality since i never got to the point where the "cross platform" units compile properly to start writing the wasm-specific stuff.
Kostas