Re: [avr-gcc-list] Moving start of progmem

[E. Weddington]

Per Arnold Blåsmo wrote:

> Start of the text section is normally at 0x00 and the first part of 
> text is .vectors and then .progmem with .init0...9.
>
> .text           0x00000000     *(.vectors)
> .vectors       0x00000000       0x30
>                0x00000000                __vectors
>                0x00000030                __ctors_start = .
> *(.ctors)
>                0x00000030                __ctors_end = .
>                0x00000030                __dtors_start = .
> *(.dtors)
>                0x00000030                __dtors_end = .
> *(.progmem.gcc*)
> *(.progmem*)
>                0x00000030                . = ALIGN (0x2)
> *(.init0)
> .....
>
> I need to make some space between .dtors end and .progmem so that 
> progmem starts at the second page of the flash.
>
> How can I do that? Is there some option to the compiler? I have tried 
> different --section-start=.init0=0x80 etc. but it does not work as 
> expected.

How is it? Do you have overlapped sections?

> Do I have to make a linker script?
Umm. I'm no expert in the linker area, but you might have to make you're 
own linker script. I suggest that you take a look at the "ld" user 
manual. You can find it online:
<http://sources.redhat.com/binutils/docs-2.15/ld/index.html>

Eric