[En-Nut-Discussion] re location truncated to fit: R_ARM_PC24 against symbol

[Matthias Wilde]

Hi Martin,

there is already a define called RAMFUNK that I use for "fast" functions.
I did not check how it is defined, but at least for me it is working.

A couple of days before I Harald added the ramfunc section into linker
script. May be you have to add this to your linker script.
I have the source not with me, but search for an old reply from me and
there is some source.


Best regards


Matthias

>
> Hi,
>
> i try to make my code (ARM AT91) running in Flash. Because i use the flash
> even for data storing i use the RAMFUNC attribute and the new linkerscript
> for that.
>
> GNU C version 4.1.0 (arm-elf)
>
> #define FASTRUN __attribute__ ((long_call, section (".ramfunc")))
>
> typedef volatile unsigned short * flashptr_t;
> flashptr_t FLASHBASE = (flashptr_t)0x10000000;
>
>
> FASTRUN void _FlashEraseComplete(void)
> {
>     NutEnterCritical();
>     FLASHBASE[0x555] = 0xAA;
>     FLASHBASE[0xAAA] = 0x55;
>     FLASHBASE[0x555] = 0x80;
>     FLASHBASE[0x555] = 0xAA;
>     FLASHBASE[0xAAA] = 0x55;
>     FLASHBASE[0x555] = 0x10;
>     NutExitCritical();
> }
>
> This code doesn´t compile and ld shows the above error.  when i delete
> the
> lines with FLASHBASE.. it compiles.
> Any hint for me. Tried many like -mlong-calls, #pragma long-calls etc.
> nothing helps
>
> thanks martin
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