Hi
Would there be a chance to implement "Static" or something that did
the same trick, in the compiler. Now I write my constants in an
assembler file. That´s acceptable, but it is not a very elegant way to
do it.
Regards Carsten
> > Carsten Bager wrote:
> >
> > > Hi
> > > I am programming to an embedded ARM platform and my question
> > > is, is it possible to force constants to stay in the code segment
> > > (constant strings etc.) In C you can do this using "static".
> > > It looks as all string constants are placed in the data segment, and all
> > > variables are placed in the bss segment. Is that always the case?
> >
> > Yes. What's the exact reason you need them in text segment?
>
> The Arm I use has 512KB flash and 32KB Ram, therefore I would
> like if I could define text constants that where placed in the flash
> segment (text). A way around this is:
> 1. To define string constants in an assembler file.
> 2. To tell the linker that the data segment are placed in flash (at the
> right location). Then change the start up code so it dos not initialize
> the data segment and change the system files so all predefined
> variables are changed to normal variables which are initialized.
> I have not tried (2), but I assume it is possible.
>
> The very best would be if things was like this
>
> Static
> St: array[0..4] of char ='12345'; {Placed in text segment}
>
> Var
> St: array[0..4] of char ='12345'; {Placed in data segment}
>
> Or something that worked the same way.
>
> Regards
> Carsten
>
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