Re: ARM cross compiler

[Gareth Bransby <G dot C dot Bransby-99 at student dot lboro dot ac dot uk>]

I have made a linker file to your specification. Now to add the command line options to make it work. I have attatched the output generated when i do 'make'. There are 3 commands issued. It looks like it is the last one that is doing the linking so do i just put the "-Wl, -Tload...." stuff at the end of that?



On Tue, 11 Jun 2002 15:14:32 +0200
Vermeulen Jan <Jan.Vermeulen@siemens.atea.be> wrote:

> Hello Gareth,
> 
> 
> <ignore section>
> 
> >I have built an arm toolchain and it 
> >all is working fine. There is only 
> >one problem. 
> 
> If there is one problem, then it isn't _all_ working fine, right?
> ;-) hehe
> 
> </ignore section>
> 
> 
> To answer your question about making your program start at a lower
> address:
> 
> Here is a linker script that we use to test our board (i.e. ledtest
> etc)
> 
> -----8<-------------------
> ENTRY(main)
> 
> SECTIONS {
>   . = 0x2000;
>   .vector0 :
>   {
>    LONG(ABSOLUTE( main ))
>   }
>   .rodata :
>     {
>     *(.rodata)
>     }
>   .text :
>     { 
>     *(.text)
>     }
>   .data : 
>     {
>     *(.data)
>     }
>   .bss  :
>     { 
>     *(.bss)
>     }
> }
> -----8<-------------------
> 
> So, we made it so that the adress of 'int main(void)' will be placed
> at
> adress 0x2000.
> 
> Then the rest is placed behind it (read only data, code, initialised
> variables and variables, in that order (if I'm not mistaking)).
> 
> We put this linker-script in a file name "load.ld" and we added:
> "-Wl,-Tload.ld -Wl,-N" to the gcc commandline. (with the rest of our
> options
> ofcourse.)
> 
> Hope this might proof helpfull,
> Jan
> 
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Attachment: make.log
Description: Binary data

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