[PATCH v5 27/36] arm/boot: Warn on orphan section placement
Kees Cook
keescook at chromium.org
Fri Jul 31 19:08:11 EDT 2020
We don't want to depend on the linker's orphan section placement
heuristics as these can vary between linkers, and may change between
versions. All sections need to be explicitly handled in the linker script.
With all sections now handled, enable orphan section warning.
Signed-off-by: Kees Cook <keescook at chromium.org>
---
arch/arm/boot/compressed/Makefile | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/arm/boot/compressed/Makefile b/arch/arm/boot/compressed/Makefile
index 00602a6fba04..b8a97d81662d 100644
--- a/arch/arm/boot/compressed/Makefile
+++ b/arch/arm/boot/compressed/Makefile
@@ -128,6 +128,8 @@ endif
LDFLAGS_vmlinux += --no-undefined
# Delete all temporary local symbols
LDFLAGS_vmlinux += -X
+# Report orphan sections
+LDFLAGS_vmlinux += --orphan-handling=warn
# Next argument is a linker script
LDFLAGS_vmlinux += -T
--
2.25.1
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