etherboot-developers

[Etherboot-developers] Porting stories...

[Yannis M. <gm...@te...>]

Dear all,

In the near-past I have attempted to port Etherboot (ver. 5.0.8) for a 
RISC processor (Hyperstone E132-XS) to leverage our project that target 
at porting uClinux to the aforementioned processor. Although the effort 
was succesful, it was "brutal" port that could not be merged with the 
CVS sources.

Now, I am working back on this issue. I am doing pretty well. Actually, 
the whole think is working. I have to remind you that our toolchain is 
GNU gcc-2.95.2 and the object format is COFF. The coff-loader is prety 
much like the ELF loader and it is working.
Still, I have some problems with my compiler with the generic 
declerations. For example, the pre-processor complains with an error 
with the following two lines:

typedef sector_t (*os_download_t)(unsigned char *data, unsigned int len, 
int eof);
static inline os_dowload_t coff_probe(unsigned char *data, unsigned int len)

I will try to resolve all those small issues. I have to admit with the 
current structure the poritng to a new architecture is a 
straight-forward process ... Great work ...

Regards

Yannis

Re: [Etherboot-developers] Porting stories...

[<ebi...@ln...>]

Yannis Mitsos <gm...@te...> writes:

> Dear all,
> 
> In the near-past I have attempted to port Etherboot (ver. 5.0.8) for a RISC
> processor (Hyperstone E132-XS) to leverage our project that target at porting
> uClinux to the aforementioned processor. Although the effort was succesful, it
> was "brutal" port that could not be merged with the CVS sources.
> 
> Now, I am working back on this issue. I am doing pretty well. Actually, the
> whole think is working. I have to remind you that our toolchain is GNU
> gcc-2.95.2 and the object format is COFF. The coff-loader is prety much like the
> 
> ELF loader and it is working.
> Still, I have some problems with my compiler with the generic declerations. For
> example, the pre-processor complains with an error with the following two lines:
> 
> 
> typedef sector_t (*os_download_t)(unsigned char *data, unsigned int len, int
> eof);
> static inline os_dowload_t coff_probe(unsigned char *data, unsigned int len)

Is it possible you don't have a uint64_t? Or for some other reason your
sector_t has problems?

> I will try to resolve all those small issues. I have to admit with the current
> structure the poritng to a new architecture is a straight-forward process
> ... Great work ...

Thanks. I'm glad you appreciate it.

Eric

Re: [Etherboot-developers] Porting stories...

[Yannis M. <gm...@te...>]

Eric W. Biederman wrote:

>Is it possible you don't have a uint64_t? Or for some other reason your
>sector_t has problems?
>
>
>  
>
The problem with the os_download_t type is solved.
I am cleanng the code a little bit (the architecture dependent parts) 
and I will try to setup the Makefile and Config files. Currently I am 
working with a shell script.

After that we have to discuss some issues on how to merge the code. I 
have also some minor modifications in the architecture independent parts 
(the cs89x0 driver and the core/main.c file)

Regards

Yannis