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authorJory A. Pratt <anarchy@gentoo.org>2009-09-18 12:49:31 -0700
committerSam Ravnborg <sam@ravnborg.org>2009-09-20 12:27:43 +0200
commitc47efe5548abbf53c2f66e06dcb46183b11d6b22 (patch)
tree4d9326eebe4fb089e8de7abed73f1198189ff82c /scripts/Kbuild.include
parent92f3f19c519d2eb18812a38312b05075cf0407db (diff)
downloadlinux-linaro-c47efe5548abbf53c2f66e06dcb46183b11d6b22.tar.gz
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>
Diffstat (limited to 'scripts/Kbuild.include')
-rw-r--r--scripts/Kbuild.include4
1 files changed, 2 insertions, 2 deletions
diff --git a/scripts/Kbuild.include b/scripts/Kbuild.include
index b3452601b0b..4f9c1908593 100644
--- a/scripts/Kbuild.include
+++ b/scripts/Kbuild.include
@@ -106,12 +106,12 @@ 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