Messages in this thread Patch in this message | | | Date | Wed, 20 Aug 2014 11:48:18 -0400 | From | Vivek Goyal <> | Subject | Re: REGRESSION: 8fc5b4d: Unable to compile x86_64 kernel with x86_32 userland |
| |
On Wed, Aug 20, 2014 at 10:07:01AM -0500, H. Peter Anvin wrote: > It says "32-bit mode" which means it is another issue: we are dropping -m64 at some point.
Thanks hpa. I am not adding -m64 to kbuild flags at all. So 32bit tool chain must be assuming -m32 by default, and probably that's the issue.
Thomas,
Can you please try attached single line patch and see if it fixes the issue for you.
Thanks Vivek
--- arch/x86/purgatory/Makefile | 1 + 1 file changed, 1 insertion(+)
Index: linux-2.6/arch/x86/purgatory/Makefile =================================================================== --- linux-2.6.orig/arch/x86/purgatory/Makefile 2014-08-20 11:32:21.723559119 -0400 +++ linux-2.6/arch/x86/purgatory/Makefile 2014-08-20 11:32:23.654570231 -0400 @@ -11,6 +11,7 @@ targets += purgatory.ro # sure how to relocate those. Like kexec-tools, use custom flags. KBUILD_CFLAGS := -fno-strict-aliasing -Wall -Wstrict-prototypes -fno-zero-initialized-in-bss -fno-builtin -ffreestanding -c -MD -Os -mcmodel=large +KBUILD_CFLAGS += -m$(BITS) $(obj)/purgatory.ro: $(PURGATORY_OBJS) FORCE $(call if_changed,ld)
| |