From: "Jory A. Pratt" <anarchy@xxxxxxxxxx> The arch/*/boot/Makefile use cc-options to check for GCC command options and cc-options use the hardened specs when checking for GCC command options. When -fPIE is pass to cc1 it can't use -ffreestanding or -fno-toplevel-reorder. Then it fail to build stuff with -ffreestanding and -fno-toplevel-reorder. Thanks to Fredric Johansson for finding the main problem behind a failed build using a hardened toolchain. Signed-off-by: Magnus Granberg <zorry@xxxxxx> Signed-off-by: Jory A. Pratt <anarchy@xxxxxxxxxx> Cc: Fredric Johansson <johansson_fredric@xxxxxxxxxxx> Cc: "H. Peter Anvin" <hpa@xxxxxxxxx> Cc: Sam Ravnborg <sam@xxxxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- scripts/Kbuild.include | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff -puN scripts/Kbuild.include~kbuild-fix-cc1-options-check-to-ensure-we-do-not-use-fpic-when-compiling scripts/Kbuild.include --- a/scripts/Kbuild.include~kbuild-fix-cc1-options-check-to-ensure-we-do-not-use-fpic-when-compiling +++ a/scripts/Kbuild.include @@ -105,12 +105,12 @@ as-instr = $(call try-run,\ # Usage: cflags-y += $(call cc-option,-march=winchip-c6,-march=i586) cc-option = $(call try-run,\ - $(CC) $(KBUILD_CFLAGS) $(1) -c -xc /dev/null -o "$$TMP",$(1),$(2)) + $(CC) $(KBUILD_CPPFLAGS) $(KBUILD_CFLAGS) $(1) -c -xc /dev/null -o "$$TMP",$(1),$(2)) # cc-option-yn # Usage: flag := $(call cc-option-yn,-march=winchip-c6) cc-option-yn = $(call try-run,\ - $(CC) $(KBUILD_CFLAGS) $(1) -c -xc /dev/null -o "$$TMP",y,n) + $(CC) $(KBUILD_CPPFLAGS) $(KBUILD_CFLAGS) $(1) -c -xc /dev/null -o "$$TMP",y,n) # cc-option-align # Prefix align with either -falign or -malign _ -- To unsubscribe from this list: send the line "unsubscribe linux-kbuild" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
