[fpc-pascal] 64 bit Linux syscall from 32 bit fpc program

[Rainer Stratmann]

Am Freitag, 24. Dezember 2021, 23:02:03 CET schrieb Sven Barth via fpc-pascal:
> Rainer Stratmann via fpc-pascal <fpc-pascal at lists.freepascal.org> schrieb
> 
> am Fr., 24. Dez. 2021, 15:04:
> > Is it possible to make a direct 64 bit Linux syscall from a 32 bit fpc
> > programm?
> 
> No, because your program is running as a 32-bit process and thus only has
> access to the 32-bit space of syscalls.
> 
> Why, what do you want to do?

My Kernel Mode Setting Program is not working on the latest Debian Linux 64 
Bit Kernel.

Debian 10 - 32 Bit Linux - it works
Debian 10 - 64 Bit Linux - it works
Debian 11 - 32 Bit Linux - it works
Debian 11 - 64 Bit Linux - it does not work

It has something to do with mmap2 and may be the vtconsole.
I guess mmap2 is not working correctly in Debian 11 - 64 Bit Linux.
Or the vtconsole takes over the framebuffer.

> Regards,
> Sven