Hi!
From: Kees Cook keescook@chromium.org
[ Upstream commit 1b64daf413acd86c2c13f5443f6b4ef3690c8061 ]
The .data.rel.ro.local section has the same semantics as .data.rel.ro here, so include it in the .rodata section of the decompressor. Additionally since the .printk_index section isn't usable outside of the core kernel, discard it in the decompressor. Avoids these warnings:
arm-linux-gnueabi-ld: warning: orphan section `.data.rel.ro.local' from `arch/arm/boot/compressed/fdt_rw.o' being placed in section `.data.rel.ro.local' arm-linux-gnueabi-ld: warning: orphan section `.printk_index' from `arch/arm/boot/compressed/fdt_rw.o' being placed in section `.printk_index'
There's no printk_index in 5.10. Perhaps this does not need to be backported?
Best regards, Pavel
+++ b/arch/arm/boot/compressed/vmlinux.lds.S @@ -23,6 +23,7 @@ SECTIONS *(.ARM.extab*) *(.note.*) *(.rel.*)
- *(.printk_index) /*
- Discard any r/w data - this produces a link error if we have any,
- which is required for PIC decompression. Local data generates
@@ -57,6 +58,7 @@ SECTIONS *(.rodata) *(.rodata.*) *(.data.rel.ro)
- *(.data.rel.ro.*) } .piggydata : { *(.piggydata)
-- 2.35.1