diff options
| author | Jory A. Pratt <anarchy@gentoo.org> | 2009-09-18 12:49:31 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2009-10-05 09:31:32 -0700 |
| commit | c9aac6645fcf788ba660ba456ec0cf9fd2f6f0f8 (patch) | |
| tree | 297e5aa7dfbb72cffb0ca5dd94f769dd5cc89910 /scripts | |
| parent | f9346c36575cc2a7e599ff17ec9b25cd338710b1 (diff) | |
kbuild: fix cc1 options check to ensure we do not use -fPIC when compiling
commit c47efe5548abbf53c2f66e06dcb46183b11d6b22 upstream.
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>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'scripts')
| -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 c29be8f9024..43300b337fd 100644 --- a/scripts/Kbuild.include +++ b/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 |