linux-kernel - [PATCH mips-next 2/4] MIPS: vmlinux.lds.S: add ".rel.dyn" to DISCARDS

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Date:   Mon, 04 Jan 2021 12:20:47 +0000
From:   Alexander Lobakin <alobakin@...me>
To:     Thomas Bogendoerfer <tsbogend@...ha.franken.de>
Cc:     Alexander Lobakin <alobakin@...me>,
        Kees Cook <keescook@...omium.org>,
        Ingo Molnar <mingo@...nel.org>,
        Fangrui Song <maskray@...gle.com>,
        Jiaxun Yang <jiaxun.yang@...goat.com>,
        Ralf Baechle <ralf@...ux-mips.org>,
        Alex Smith <alex.smith@...tec.com>,
        Markos Chandras <markos.chandras@...tec.com>,
        linux-mips@...r.kernel.org, stable@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH mips-next 2/4] MIPS: vmlinux.lds.S: add ".rel.dyn" to DISCARDS

GCC somehow manages to place some of the symbols from main.c into
.rel.dyn section:

mips-alpine-linux-musl-ld: warning: orphan section `.rel.dyn'
from `init/main.o' being placed in section `.rel.dyn'

I couldn't catch up the exact symbol, but seems like it's harmless
to discard it from the final vmlinux as kernel doesn't use or
support dynamic relocations.

Misc: sort DISCARDS section entries alphabetically.

Signed-off-by: Alexander Lobakin <alobakin@...me>
---
 arch/mips/kernel/vmlinux.lds.S | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/mips/kernel/vmlinux.lds.S b/arch/mips/kernel/vmlinux.lds.S
index 83e27a181206..1c3c2e903062 100644
--- a/arch/mips/kernel/vmlinux.lds.S
+++ b/arch/mips/kernel/vmlinux.lds.S
@@ -221,9 +221,10 @@ SECTIONS
 		/* ABI crap starts here */
 		*(.MIPS.abiflags)
 		*(.MIPS.options)
+		*(.eh_frame)
 		*(.options)
 		*(.pdr)
 		*(.reginfo)
-		*(.eh_frame)
+		*(.rel.dyn)
 	}
 }
-- 
2.30.0