| From 7d1531c81c0fb4c93bea8dc316043ad0e4d0c270 Mon Sep 17 00:00:00 2001 |
| From: Chuanhong Guo <gch981213@gmail.com> |
| 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=<target>.dtb vmlinuz vmlinuz-dtb |
| |
| Signed-off-by: Chuanhong Guo <gch981213@gmail.com> |
| --- |
| 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 */ |