Dynamic loader + File System

[Valentin BOUSSON]

Hello,
sorry for my previous dummy mail

On 20/01/2014 23:48, Chris Johns wrote:
> On 21/01/2014 4:12 am, Valentin BOUSSON wrote:
>> Hello, I'm new on this mailing-list,
>> I bought a STM32F4 - DISCOVERY board to play with, and I succeeded to
>> compile and run a lot of simple, led / LCD / audio project I found
>> online. I was using the Sourcery arm compiler chain.
>>
>
> Which one ? They vary in the amount of RAM and this is important.

The one that can be got by summon-arm-toolchain. Normally OK for STM32.
I have 16KB RAM and 1024MB Flash on the STM32F4.


>> But my next ambition is little harder, I would like to adapt one of my
>> existing program, based on a plugin-mechanism, on my stm32. So, I was
>> looking for an RTOS being able to manage a simple system, in the Flash
>> memory, or in an external SD card.
>>
>>
>> So, I was wondering about RTEMS, is it possible / easy to set up a file
>> system, and a dynamic elf loader on top of the OS ?
>> I used to call dlopen, dlsym in order to load in RAM the code of my
>> dynamic librairies, and I'm looking for such a mechanism.
>> Any idea ?
>>
>
> The RTL project supports ARM and I will be working to integrate last 
> years GSoC work plus look into any outstanding issues soon. It however 
> needs RAM.
>
> RTEMS has JFFS2 support however I am not sure how much RAM it uses.
> Chris 

JFFS2 would be good for me, but I needs moreover a dynamic code loader.
Do someone has already done such projects ?

Thanks
Valentin BOUSSON