kbuild: fix cc1 options check to ensure we do not use -fPIC when compiling
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@ume.nu> Signed-off-by: Jory A. Pratt <anarchy@gentoo.org> Cc: Fredric Johansson <johansson_fredric@hotmail.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Cc: <stable@kernel.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
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