[ECOS] Re: Printf function error

[Kelvin Lawson]

Hi Aniket,

Have you updated your PATH variable to point to the new compiler 
directory ? You can find out the version number from the command-line 
using "sh-elf-gcc -dumpversion". It should say "3.3.2".

If you are using configtool you may also need to change the path in 
there (Tools->Path->Build Tools).

Cheers,
Kelvin.



Aniket S Joshi wrote:
> Hi Kelvin,
> 
> As per your suggession i installed all 
> 	. binutils-2.14
> 	. newlib-1.12.0
> 	. gcc-core-3.3.2
> 	. gcc-g++-3.3.2
> 	. insight-6.0
> sourece files successfully.
> 
> But still i am facing the problem of PRINTF statement.
> I think system is still taking old compiler & lib files
> I installed all new sources in different directry
> 
> Can you guide me to solve this problem.
> 
> 
> Aniket
> 
> 
> 
>>>>Kelvin Lawson <klawson@ad-holdings.co.uk> 02/20/04 08:04PM >>>
> 
> Hi Aniket,
> 
> I found the same issue with GCC 3.2.1 on SH3. I also found that in some 
> cases it generated bad code with optimisation turned off. Since moving 
> to GCC 3.3.2 I haven't come across any code generation problems. I'd 
> recommend you download the latest sources and rebuild the toolchain.
> 
> I used these instructions for building the toolchain:
> 	http://ecos.sourceware.org/build-toolchain.html 
> 
> But used the latest version of the sources:
> 	. binutils-2.14
> 	. newlib-1.12.0
> 	. gcc-core-3.3.2
> 	. gcc-g++-3.3.2
> 	. insight-6.0
> 
> I had to apply the following patches to GCC and Insight:
> 	. http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13068 
> 	. http://gcc.gnu.org/ml/gcc-patches/2002-07/msg00433.html 
> 	. http://sources.redhat.com/ml/insight/2003-q4/msg00034.html 
> 
> I also found some issues with the eCos v2.0 release when using the new 
> sh-elf toolchain. I would use the latest eCos sources from CVS in order 
> to avoid these. I can send you details of what changes are required to 
> v2.0 if you like though.
> 
> Cheers,
> Kelvin.
> 
> 
> John Dallaway wrote:
> 
> 
>>Hi Aniket
>>
>>Aniket S Joshi wrote:
>>
>>
>>>I am tring to run the example program "towthreads.c" But it is giving 
>>>output as follows
>>>
>>>Entering twothreads' cyg_user_start()
>>>function
>>>Beginning execution; thread data is 0
>>>Beginning execution; thread data is 1
>>>Thread 00000000000000000000000000000000000000..........
>>
>>
>>This is a manifestation of a code optimisation issue in GCC 3.2.1 (and 
>>possibly other versions) targetting sh-elf. The eCosPro Developer's Kit 
>>for SuperH targets ships with a patched toolchain to address this problem.
>>
>>John Dallaway
>>eCosCentric Limited
>>
> 
> 
> 
> 



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