Re: [U-Boot] arm: wrong Relocation and not cleared BSS

Dear Albert ARIBAUD,

In message 4CCC4161.8000807@free.fr you wrote:

Just re-checked the C99 specs, and yes, all static scope vars must be initialized, so I stand corrected as for BSS initialization. I still think, though, that one should not count on a BSS-allocated variable to be zero at program start, and if one wants a variable to be zero, one must initialize it explicitly.

The C standard guarantees that. And U-Boot guarantees that, after relocation, we have a standard C execution environment, i. e. a zeroed BSS.

Anyway, as I said, the nand_chip[] issue is not, I believe, related to initializing BSS, as the writing and reading both occur after setting up the C environment for running from RAM.

Agreed.

Best regards,

Wolfgang Denk