From: Ard Biesheuvel <ardb@kernel.org>
Date: Wed, 24 Aug 2022 15:31:10 +0000 (+0200)
Subject: LoongArch: Avoid orphan input sections
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=1429cfde90dc9c84789884d58ecd3bc2cad3dc9f;p=linux.git

LoongArch: Avoid orphan input sections

Ensure that all input sections are listed explicitly in the linker
script, and issue a warning otherwise. This ensures that the binary
image matches the PE/COFF and other image metadata exactly, which is
important for things like code signing.

Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
---

diff --git a/arch/loongarch/Kconfig b/arch/loongarch/Kconfig
index 26aeb1408e569..3bc5b911ae1aa 100644
--- a/arch/loongarch/Kconfig
+++ b/arch/loongarch/Kconfig
@@ -51,6 +51,7 @@ config LOONGARCH
 	select ARCH_USE_CMPXCHG_LOCKREF
 	select ARCH_USE_QUEUED_RWLOCKS
 	select ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT
+	select ARCH_WANT_LD_ORPHAN_WARN
 	select ARCH_WANTS_NO_INSTR
 	select BUILDTIME_TABLE_SORT
 	select COMMON_CLK
diff --git a/arch/loongarch/kernel/vmlinux.lds.S b/arch/loongarch/kernel/vmlinux.lds.S
index 69c76f26c1c57..f4831df5d2f9a 100644
--- a/arch/loongarch/kernel/vmlinux.lds.S
+++ b/arch/loongarch/kernel/vmlinux.lds.S
@@ -77,6 +77,8 @@ SECTIONS
 	PERCPU_SECTION(1 << CONFIG_L1_CACHE_SHIFT)
 #endif
 
+	.rela.dyn : ALIGN(8) { *(.rela.dyn) *(.rela*) }
+
 	.init.bss : {
 		*(.init.bss)
 	}