Re: [sdcc-devel] How to put initialized data plainly in the data section?

[Atirut W. <ati...@gm...>]

> Typical SDCC targets are small systems with RAM and ROM/Flash, and SDCC
> needs to take care of initializing data on startup.

This can easily be done with `> RAM AT > ROM` using Binutils and doing a
simple whole-section memcpy. It also simplifies a lot of things by using
the same convention and not having a different symbol name for the
initialized data. It would be nice to have as an option.

On Wed, 29 Jan 2025, 16:28 Philipp Klaus Krause, <pk...@sp...> wrote:

> Am 29.01.25 um 08:33 schrieb Atirut Wattanamongkol:
> > Hi all. I've been trying to figure out how to make SDCC put
> > initialized data in the data section instead of in `.initializer` and
> > such, but no luck.
> >
> > My goal is to make SDCC work well with Binutils with minimal custom
> > linker script work, and putting initialized data in the data section
> > is part of this. Problem is, I can't seem to figure out how to force
> > SDCC to do that. All my hacks made to the compiler only seem to move
> > it somewhere else other than the data section. Should I look at
> > directly implementing native ELF output instead?
>
> Which port are you working on? I don't see how ELF would make a
> difference here (but if you want to see for yourself, have a look at one
> of the ports that do support ELF output (hc08, s08, stm8)).
> Typical SDCC targets are small systems with RAM and ROM/Flash, and SDCC
> needs to take care of initializing data on startup.
>
> Philipp
>
>
>
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