Re: [PATCH 1/2] sh: align .bss section padding to 8-byte boundary

[Rob Landley]

On 2/16/25 11:55, Artur Rojek wrote:
> J2 based devices expect to find a devicetree blob at the end of the bss
> section. As of a77725a9a3c5, libfdt enforces 8-byte alignment for the
> dtb, causing J2 devices to fail early in sh_fdt_init.
>
> As J2 loader firmware calculates the dtb location based on the kernel
> image .bss section size, rather than the __bss_stop symbol offset, the
> required alignment can't be enforced with BSS_SECTION(0, PAGE_SIZE, 8).
> Instead, inline modified version of the above macro, which grows .bss
> by the required size.
>
> While this change affects all existing SH boards, it should be benign on
> platforms which don't need this alignment.
>
> Signed-off-by: Artur Rojek <contact@xxxxxxxxxxxxxx>

Tested-by: Rob Landley <rob@xxxxxxxxxxx>

Rob