[PATCH v2 10/11] mips: Implement setjmp/longjmp/initjmp

[Ahmad Fatoum]

Hello,

On 10.03.21 09:17, Ahmad Fatoum wrote:
> Hello Peter,
> 
>>> I agree with you, but barebox doesn't support MIPS64 currently and I
>>> wasn't confident enough to add such things when I can't test them.
>>
>> Well, what can possibly go wrong? =) Actually you've used this approach for RV: 
>> http://lists.infradead.org/pipermail/barebox/2021-March/035173.html.
>>
>>> Maybe we can add a
>>>
>>> #if SZREG != 4
>>> #error setjmp/longjmp currently only supports 32bit targets
>>> #endif
>>
>> Definitely it's better than random fails after context switch in runtime.
> 
> I changed the select to happen only from the 32-bit symbols for RISC-V and MIPS.

Ah, I didn't understand at first that the assembly is safe for both 32-bit and 64-bit.
I tested it and it works on both. Will fix this with the RISC-V 64-bit series. 

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