[PATCH v4 8/9] loongarch: avoid orphan input sections

[Ard Biesheuvel]

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 at kernel.org>
---
 arch/loongarch/Kconfig              | 1 +
 arch/loongarch/kernel/vmlinux.lds.S | 2 ++
 2 files changed, 3 insertions(+)

diff --git a/arch/loongarch/Kconfig b/arch/loongarch/Kconfig
index fca106a8b8af..407502da4335 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 36d042739f3c..17d33308dfba 100644
--- a/arch/loongarch/kernel/vmlinux.lds.S
+++ b/arch/loongarch/kernel/vmlinux.lds.S
@@ -74,6 +74,8 @@ SECTIONS
 		EXIT_DATA
 	}
 
+	.rela.dyn : { *(.rela.dyn) *(.rela*) }
+
 #ifdef CONFIG_SMP
 	PERCPU_SECTION(1 << CONFIG_L1_CACHE_SHIFT)
 #endif
-- 
2.35.1