[avr-gcc-list] Re: Problem with malloc()

[Victor Sluiter]

Thanks for your help Carsten, but unfotunately nothing has changed after I
changed my makefile.... What surprises me, is that _end_of_ram_ is declared in
line 11 of malloc.c as 'extern size_t _end_of_ram_;', but the error points
to line 16, where it is used the first time: 'size_t * heap_top =
&_end_of_ram_;'. So -I guess- the compiler can't get the address of the 'extern 
size_t'.
But I guess I'm wrong, because in that case many others would have had the
same problem..... I'm puzzled.....
Greetings, Victor

> Hi Victor,
> you should add the following line to your makefile
>  ASFLAGS = -L -favr_noendianbug -D__end_of_ram=0x0fff
> the -L option is as far as I know not necessary  but the definition of the
> _end_of_ram should solve your problem. Never make this value bigger than
> your RAM-Size! Cause of optimization you will get very funny behaviour ;-)
> CU carsten

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