[PATCH v9 12/12] efi/libstub: disable SCS
From: Sami Tolvanen <samitolvanen@google.com>
Date: 2020-02-25 17:40:28
Also in:
lkml
Subsystem:
extensible firmware interface (efi), the rest · Maintainers:
Ard Biesheuvel, Linus Torvalds
Shadow stacks are not available in the EFI stub, filter out SCS flags. Suggested-by: James Morse <james.morse@arm.com> Signed-off-by: Sami Tolvanen <samitolvanen@google.com> --- 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 98a81576213d..ee5c37c401c9 100644
--- a/drivers/firmware/efi/libstub/Makefile
+++ b/drivers/firmware/efi/libstub/Makefile@@ -30,6 +30,9 @@ KBUILD_CFLAGS := $(cflags-y) -DDISABLE_BRANCH_PROFILING \ $(call cc-option,-fno-stack-protector) \ -D__DISABLE_EXPORTS +# remove SCS flags from all objects in this directory +KBUILD_CFLAGS := $(filter-out $(CC_FLAGS_SCS), $(KBUILD_CFLAGS)) + GCOV_PROFILE := n KASAN_SANITIZE := n UBSAN_SANITIZE := n
--
2.25.0.265.gbab2e86ba0-goog
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