[fpc-devel] Windows 32bit - FPC 3.0.4 Gets an Error - but not on Linux or Mac...

Ozz Nixon ozznixon at gmail.com
Sat Sep 28 22:24:41 CEST 2019

Alexander, Its the calling line that is messing up.

TLapeImportedFunc(Ptr)(@Stack[StackPos - ParamSize], Res);

* Res has a value before executing that line. However, the called method
receives the 2nd param as null.

Or is it in the definition:
TLapeImportedFunc = procedure(const Params: PParamArray; const Result:
Pointer); {$IFDEF Using_CDECL}cdecl;{$ENDIF} <-- CDECL is enabled.

So, is a CDECL thing? A compile switch I need to enable/disable? Remove
"const" everywhere? ... it has taken me 6 months to slow down and say, WTF.
I can run everywhere but Windows. :-(

On Sat, Sep 28, 2019 at 3:16 PM Alexander Grotewohl <alex at dcclost.com>

> don't know off the top of my head but does the ord() bit segfault without
> assigning it to anything? like if the function only had writleln(ord())! or
> does the result:= section segfault using ord() without the pointers?
> my guess is it works on linux/mac purely by luck. but i could be wrong.
> --
> Alexander Grotewohl
> http://dcclost.com
> On Sep 28, 2019 3:21 PM, Ozz Nixon <ozznixon at gmail.com> wrote:
> [image: image.png]
> When I evaluate the code - it is perfect. However, when I run the code, it
> raises a SIGSEGV - Segmentation fault. Yet, the code runs perfectly on
> Linux 64bit machine, and Mac 32bit.
> _______________________________________________
> fpc-devel maillist  -  fpc-devel at lists.freepascal.org
> https://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-devel
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