Re: [U-Boot] [PATCH 1/5] Add basic errno support.

Dear Jerry Van Baren,

In message 4C42F8DE.5040009@gmail.com you wrote:

...

drop the "= 0" so that errno ends up in the bss ? -mike

Is this going to be a problem during early startup (pre-relocation) vs. normal running? Pre-relocation, we only have a temporary stack and RAM is not set up initially.

I have not looked at when RAM gets initialized vs. when env. variables get used. It is probably OK. Wolfgang?

AFAICT the relevant code runs all only after relocation to RAM, i. e. the use of errno (whether in BSS or not) should be no problem.

But you are right - using it before relocation will not work as is. We could make it a global data entry, if needed.

Best regards,

Wolfgang Denk