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| author | Jory A. Pratt <anarchy@gentoo.org> | 2009-09-18 12:49:31 -0700 |
|---|---|---|
| committer | Sam Ravnborg <sam@ravnborg.org> | 2009-09-20 12:27:43 +0200 |
| commit | c47efe5548abbf53c2f66e06dcb46183b11d6b22 (patch) | |
| tree | 4d9326eebe4fb089e8de7abed73f1198189ff82c /scripts/Kbuild.include | |
| parent | 92f3f19c519d2eb18812a38312b05075cf0407db (diff) | |
| download | kernel-common-c47efe5548abbf53c2f66e06dcb46183b11d6b22.tar.gz kernel-common-c47efe5548abbf53c2f66e06dcb46183b11d6b22.tar.bz2 kernel-common-c47efe5548abbf53c2f66e06dcb46183b11d6b22.zip | |
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.include | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/scripts/Kbuild.include b/scripts/Kbuild.include index b3452601b0b1..4f9c1908593b 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 |