MIPS: zboot: put appended dtb into a section

This will make a separated section for dtb appear in ELF, and we can
then use objcopy to patch a dtb into vmlinuz when RAW_APPENDED_DTB
is set in kernel config.

command to patch a dtb:
objcopy --set-section-flags=.appended_dtb=alloc,contents \
        --update-section=.appended_dtb=<target>.dtb vmlinuz

Signed-off-by: Chuanhong Guo <gch981213@gmail.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
This commit is contained in:
Chuanhong Guo 2020-10-26 20:29:25 +08:00 committed by Thomas Bogendoerfer
parent ab7cffb8d2
commit d2e850e961

View File

@ -31,9 +31,12 @@ SECTIONS
CONSTRUCTORS
. = ALIGN(16);
}
__appended_dtb = .;
/* leave space for appended DTB */
. += 0x100000;
.appended_dtb : {
__appended_dtb = .;
/* leave space for appended DTB */
. += 0x100000;
}
_edata = .;
/* End of data section */