U-Boot's mkimage writes the multi-file size table for script images
(`mkimage -T script`, the boot.scr format) exactly as it does for multi
images, `mkimage -l` lists the script as "Image 0", and the `source`
command skips the table before running the script ("scripts are just
multi-image files with one component", boot/image-board.c).
The uImage reader parsed the table only for IH_TYPE_MULTI, so a script
image reported sub_image_count 0 and exposed only payload.bin, whose
first bytes are the binary size table rather than the script text.
Treat IH_TYPE_SCRIPT like IH_TYPE_MULTI: parse the same bounded table,
expose image-<n>.bin components and report the size-table limitation.
payload.bin is unchanged. A script payload without a valid table now
fails closed, as a multi image already does.
17 KiB
17 KiB