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c063e27e02
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>
37 lines
1.0 KiB
Diff
37 lines
1.0 KiB
Diff
From 7d1531c81c0fb4c93bea8dc316043ad0e4d0c270 Mon Sep 17 00:00:00 2001
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From: Chuanhong Guo <gch981213@gmail.com>
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Date: Sun, 25 Oct 2020 23:19:40 +0800
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Subject: [PATCH] MIPS: zboot: put appended dtb into a section
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This will make a separated section for dtb appear in ELF, and we can
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then use objcopy to patch a dtb into vmlinuz when RAW_APPENDED_DTB
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is set in kernel config.
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command to patch a dtb:
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objcopy --set-section-flags=.appended_dtb=alloc,contents \
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--update-section=.appended_dtb=<target>.dtb vmlinuz vmlinuz-dtb
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Signed-off-by: Chuanhong Guo <gch981213@gmail.com>
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---
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arch/mips/boot/compressed/ld.script | 9 ++++++---
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1 file changed, 6 insertions(+), 3 deletions(-)
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--- a/arch/mips/boot/compressed/ld.script
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+++ b/arch/mips/boot/compressed/ld.script
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@@ -31,9 +31,12 @@ SECTIONS
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CONSTRUCTORS
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. = ALIGN(16);
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}
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- __appended_dtb = .;
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- /* leave space for appended DTB */
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- . += 0x100000;
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+
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+ .appended_dtb : {
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+ __appended_dtb = .;
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+ /* leave space for appended DTB */
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+ . += 0x100000;
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+ }
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_edata = .;
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/* End of data section */
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