From 7d1531c81c0fb4c93bea8dc316043ad0e4d0c270 Mon Sep 17 00:00:00 2001 From: Chuanhong Guo Date: Sun, 25 Oct 2020 23:19:40 +0800 Subject: [PATCH] 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=.dtb vmlinuz vmlinuz-dtb Signed-off-by: Chuanhong Guo --- arch/mips/boot/compressed/ld.script | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) --- a/arch/mips/boot/compressed/ld.script +++ b/arch/mips/boot/compressed/ld.script @@ -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 */