[PATCH v3 3/9] efi/libstub: Remove .note.gnu.property
From: Kees Cook <hidden>
Date: 2020-06-24 01:49:51
Also in:
linux-arch, linux-efi, lkml
Subsystem:
extensible firmware interface (efi), the rest · Maintainers:
Ard Biesheuvel, Linus Torvalds
In preparation for adding --orphan-handling=warn to more architectures, make sure unwanted sections don't end up appearing under the .init section prefix that libstub adds to itself during objcopy. Signed-off-by: Kees Cook <redacted> --- drivers/firmware/efi/libstub/Makefile | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/drivers/firmware/efi/libstub/Makefile b/drivers/firmware/efi/libstub/Makefile
index 75daaf20374e..9d2d2e784bca 100644
--- a/drivers/firmware/efi/libstub/Makefile
+++ b/drivers/firmware/efi/libstub/Makefile@@ -66,6 +66,9 @@ lib-$(CONFIG_X86) += x86-stub.o CFLAGS_arm32-stub.o := -DTEXT_OFFSET=$(TEXT_OFFSET) CFLAGS_arm64-stub.o := -DTEXT_OFFSET=$(TEXT_OFFSET) +# Remove unwanted sections first. +STUBCOPY_FLAGS-y += --remove-section=.note.gnu.property + # # For x86, bootloaders like systemd-boot or grub-efi do not zero-initialize the # .bss section, so the .bss section of the EFI stub needs to be included in the
--
2.25.1
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