The following commit has been merged into the core/build branch of tip: Commit-ID: 6e0bf0e0e55000742a53c5f3b58f8669e0091a11 Gitweb: https://git.kernel.org/tip/6e0bf0e0e55000742a53c5f3b58f8669e0091a11 Author: Kees Cook <keescook@xxxxxxxxxxxx> AuthorDate: Tue, 01 Sep 2020 19:53:47 -07:00 Committer: Ingo Molnar <mingo@xxxxxxxxxx> CommitterDate: Thu, 03 Sep 2020 10:28:36 +02:00 x86/boot/compressed: 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. Now that all sections are explicitly handled, enable orphan section warnings. Signed-off-by: Kees Cook <keescook@xxxxxxxxxxxx> Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx> Reviewed-by: Nick Desaulniers <ndesaulniers@xxxxxxxxxx> Link: https://lore.kernel.org/r/20200902025347.2504702-6-keescook@xxxxxxxxxxxx --- arch/x86/boot/compressed/Makefile | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/x86/boot/compressed/Makefile b/arch/x86/boot/compressed/Makefile index 5b7f6e1..871cc07 100644 --- a/arch/x86/boot/compressed/Makefile +++ b/arch/x86/boot/compressed/Makefile @@ -54,6 +54,7 @@ KBUILD_LDFLAGS += $(call ld-option,--no-ld-generated-unwind-info) # Compressed kernel should be built as PIE since it may be loaded at any # address by the bootloader. LDFLAGS_vmlinux := -pie $(call ld-option, --no-dynamic-linker) +LDFLAGS_vmlinux += $(call ld-option, --orphan-handling=warn) LDFLAGS_vmlinux += -T hostprogs := mkpiggy
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