[fpc-pascal] fpmmap arm-linux issue

[Fabio Luis Girardi]

Ok. I'll fill out a bug report.

Em Sáb, 1 de fev de 2020 13:47, Jonas Maebe <jonas at freepascal.org> escreveu:

> On 31/01/2020 22:17, Fabio Luis Girardi via fpc-pascal wrote:
> > In C:
> >
> > CM_BaseAddr = mmap(NULL, 0x4000, PROT_READ | PROT_WRITE,
> >         MAP_SHARED,  devmemfd, *0x44e00000*);
> >
> > to get the "same" code working in FPC I have to change some constants.
> >
> > CM_BaseAddr := Fpmmap(NULL, $4000, PROT_READ + PROT_WRITE,
> >           MAP_SHARED,  devmemfd, *$44e00*);
> >
> > I did a strace in the FPC executable, and the in line above, the base
> > address is "multiplied" by 4096 dec ($1000 hex)  becoming back equal to
> > the C constant.
> >
> > The question is: this is intentional? Has some technical point that's
> > not mentioned on the fpmmap documentation? Or it's simply a bug?
>
> It sounds like a bug. I don't see anything in the RTL that intentially
> does this.
>
>
> Jonas
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