Re: [libopencm3-devel] _stack definition in linker script

[Tomaž Š. <tom...@ij...>]

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On 03/19/2012 08:18 AM, Piotr Esden-Tempski wrote:
> I think there is a patch fixing this already in locm3. Can you confirm?

Yes, this is fixed. Gareth McMullin commited my patch back in January
(03e44e91e31a5c26b82a5d8be7de91d489bb7a87)

Thanks
Tomaž

> On Jan 11, 2012, at 2:01 AM, Tomaž Šolc wrote:
>
>> Hi
>>
>> I'm attaching a patch I've been using that moves the stack to the top of
>> available RAM, as defined in the user's linker script.
>>
>> Feel free to include it in libopencm3.
>>
>> Thanks
>> Tomaž
>>
>> On 12/20/2011 03:05 PM, Tomaž Šolc wrote:
>>> Hi everyone
>>>
>>> I see that stack top is always set to 0x20000800 in all linker scripts
>>> that come with libopencm3, regardless of what the user-supplied linker
>>> script sets for RAM and flash size/address.
>>>
>>> For instance, on the stm32f103 chip with 64 kB of RAM at 0x20000000 this
>>> only gives you 2 kB of space for globals and stack, which just proved
>>> too little for a basic Contiki OS + libopencm3 setup.
>>>
>>> Is there a reason why _stack isn't simply initialized to the top of the
>>> available RAM with with something like this?
>>>
>>> PROVIDE(_stack = ORIGIN(ram) + LENGTH(ram));
>>>
>>> Thanks
>>> Tomaž
>> - --
>> Tomaž Šolc, research assistant
>> SensorLab, Jožef Stefan Institute
>> http://sensorlab.ijs.si
>> mail: tom...@ij...
>> blog: http://www.tablix.org/~avian/blog
>>
<0001-Set-_stack-to-the-top-of-ram-region.patch>------------------------------------------------------------------------------
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