Commit 4409d2f8 authored Sep 01, 2020 by Kees Cook Committed by Ingo Molnar Sep 03, 2020

arm/boot: Warn on orphan section placement

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@chromium.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Link: https://lore.kernel.org/r/20200902025347.2504702-4-keescook@chromium.org

parent 5a17850e

arch/arm/boot/compressed/Makefile

+2 −0

Original line number	Diff line number	Diff line
		@@ -123,6 +123,8 @@ endif
		LDFLAGS_vmlinux += --no-undefined
		# Delete all temporary local symbols
		LDFLAGS_vmlinux += -X
		# Report orphan sections
		LDFLAGS_vmlinux += $(call ld-option, --orphan-handling=warn)
		# Next argument is a linker script
		LDFLAGS_vmlinux += -T