linux-kernel - [PATCH -fixes] riscv: Move .rela.dyn to the init sections

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Message-Id: <20230428120932.22735-1-alexghiti@rivosinc.com>
Date:   Fri, 28 Apr 2023 14:09:32 +0200
From:   Alexandre Ghiti <alexghiti@...osinc.com>
To:     Paul Walmsley <paul.walmsley@...ive.com>,
        Palmer Dabbelt <palmer@...belt.com>,
        Albert Ou <aou@...s.berkeley.edu>,
        Alexandre Ghiti <alexghiti@...osinc.com>,
        linux-riscv@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH -fixes] riscv: Move .rela.dyn to the init sections

The recent introduction of relocatable kernels prepared the move of
.rela.dyn to the init section, but actually forgot to do so, so do it
here.

Before this patch: "Freeing unused kernel image (initmem) memory: 2592K"
After this patch:  "Freeing unused kernel image (initmem) memory: 6288K"

The difference corresponds to the size of the .rela.dyn section:
"[42] .rela.dyn         RELA             ffffffff8197e798  0127f798
       000000000039c660  0000000000000018   A      47     0     8"

Fixes: 559d1e45a16d ("riscv: Use --emit-relocs in order to move .rela.dyn in init")
Signed-off-by: Alexandre Ghiti <alexghiti@...osinc.com>
---
 arch/riscv/kernel/vmlinux.lds.S | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/arch/riscv/kernel/vmlinux.lds.S b/arch/riscv/kernel/vmlinux.lds.S
index 305877d85e96..f03b5697f8e0 100644
--- a/arch/riscv/kernel/vmlinux.lds.S
+++ b/arch/riscv/kernel/vmlinux.lds.S
@@ -104,6 +104,12 @@ SECTIONS
 		*(.rel.dyn*)
 	}
 
+	.rela.dyn : ALIGN(8) {
+		__rela_dyn_start = .;
+		*(.rela .rela*)
+		__rela_dyn_end = .;
+	}
+
 	__init_data_end = .;
 
 	. = ALIGN(8);
@@ -130,12 +136,6 @@ SECTIONS
 		*(.sdata*)
 	}
 
-	.rela.dyn : ALIGN(8) {
-		__rela_dyn_start = .;
-		*(.rela .rela*)
-		__rela_dyn_end = .;
-	}
-
 	.got : { *(.got*) }
 
 #ifdef CONFIG_RELOCATABLE
-- 
2.37.2