Luck, Tony wrote:
> + /*
> + * We keep init/exit bss sections here to have only one
> + * segment to load. Note that .bss.exit is also discarded
> + * at runtime for the same reason as above.
> + */
> + .exit.bss : {
> + *(.bss.exit)
> + }
>
> This change would also require an audit of the bootloader or early
> kernel initialization code (whichever handles zeroing of .bss space)
I think the kernel doesn't rely on the bootloader for clearing bss.
> to make sure that it understands that the kernel will now have an
> extra block of memory that needs to be cleared. Perhaps nothing
> needs to be done if the code already handled the general case of
> loading an ELF binary with some sections that have an in-memory
> size bigger than the on-disk size. But worth looking at in case
> the code makes an assumption about what needs to be zeroed.
>
For MIPS case, there is normally no extra block of memory to
clear. [__bss_start, __bss_stop] range still includes the whole memory
block to clear. So there's no need to modify any other code.
Franck
