From 4409d2f8dfe7d5088567d4ba00133f876ee586c7 Mon Sep 17 00:00:00 2001 From: Kees Cook Date: Tue, 1 Sep 2020 19:53:45 -0700 Subject: 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 Signed-off-by: Ingo Molnar Reviewed-by: Nick Desaulniers Link: https://lore.kernel.org/r/20200902025347.2504702-4-keescook@chromium.org --- arch/arm/boot/compressed/Makefile | 2 ++ 1 file changed, 2 insertions(+) (limited to 'arch/arm/boot/compressed/Makefile') diff --git a/arch/arm/boot/compressed/Makefile b/arch/arm/boot/compressed/Makefile index b1147b7f2c8d..58028abd05d9 100644 --- a/arch/arm/boot/compressed/Makefile +++ b/arch/arm/boot/compressed/Makefile @@ -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 -- cgit v1.2.3