From: Kees Cook <keescook@xxxxxxxxxxxx> Subject: efi: avoid fortify checks in EFI stub This avoids CONFIG_FORTIFY_SOURCE from being enabled during the EFI stub build, as adding a panic() implementation may not work well. This can be adjusted in the future. Link: http://lkml.kernel.org/r/1497903987-21002-2-git-send-email-keescook@xxxxxxxxxxxx Signed-off-by: Kees Cook <keescook@xxxxxxxxxxxx> Suggested-by: Daniel Micay <danielmicay@xxxxxxxxx> Reviewed-by: Ard Biesheuvel <ard.biesheuvel@xxxxxxxxxx> Acked-by: Mark Rutland <mark.rutland@xxxxxxx> Cc: Matt Fleming <matt@xxxxxxxxxxxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- drivers/firmware/efi/libstub/Makefile | 1 + 1 file changed, 1 insertion(+) diff -puN drivers/firmware/efi/libstub/Makefile~efi-avoid-fortify-checks-in-efi-stub drivers/firmware/efi/libstub/Makefile --- a/drivers/firmware/efi/libstub/Makefile~efi-avoid-fortify-checks-in-efi-stub +++ a/drivers/firmware/efi/libstub/Makefile @@ -17,6 +17,7 @@ cflags-$(CONFIG_ARM) := $(subst -pg,,$( cflags-$(CONFIG_EFI_ARMSTUB) += -I$(srctree)/scripts/dtc/libfdt KBUILD_CFLAGS := $(cflags-y) -DDISABLE_BRANCH_PROFILING \ + -D__NO_FORTIFY \ $(call cc-option,-ffreestanding) \ $(call cc-option,-fno-stack-protector) _ -- To unsubscribe from this list: send the line "unsubscribe mm-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
