Messages in this thread | | | Date | Sun, 23 Nov 2014 20:27:24 +0100 (CET) | From | Thomas Gleixner <> | Subject | Re: [PATCH]: cross-compiling x86_64 kernel on i386 user-space fails |
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On Sat, 22 Nov 2014, Borislav Petkov wrote:
> On Sat, Nov 22, 2014 at 09:51:10AM +0000, Chris Clayton wrote: > > Hi, > > Yeah, next time make sure you actually CC people :-) > > I've added them to CC now. > > > Commit e6023367d779060fddc9a52d1f474085b2b36298 broke building an x86_64 kernel in an i386. The change added a call to > > objdump but neglected to cater for cross-compiling. > > > > The patch below fixes the problem for me. I see the commit is now in 3.14 and 3.17 -stable, so the patch needs to go > > there too.
That's not a specific problem of building x86_64 on i386. The missing cross compile prefix prevents any cross build of x86.
> CC: stable@vger.kernel.org > > in the commit message should help there. > > > > CC: Junjie Mao <eternal.n08@gmail.com> > > CC: Kees Cook <keescook@chromium.org> > > CC: Thomas Gleixner <tglx@linutronix.de> > > CC: Ingo Molnar <mingo@kernel.org> > > Signed-off-by: Chris Clayton <chris2553@googlemail.com> > > Acked-by: Borislav Petkov <bp@suse.de> > > > --- > > --- linux/arch/x86/boot/compressed/Makefile~ 2014-11-22 08:56:50.359706324 +0000 > > +++ linux/arch/x86/boot/compressed/Makefile 2014-11-22 09:04:06.615693435 +0000 > > @@ -76,7 +76,7 @@ suffix-$(CONFIG_KERNEL_XZ) := xz > > suffix-$(CONFIG_KERNEL_LZO) := lzo > > suffix-$(CONFIG_KERNEL_LZ4) := lz4 > > > > -RUN_SIZE = $(shell objdump -h vmlinux | \ > > +RUN_SIZE = $(shell ${CROSS_COMPILE}objdump -h vmlinux | \
While that works, this wants to be:
+RUN_SIZE = $(shell $(OBJDUMP) -h vmlinux | \
I'll fix it up.
Thanks,
tglx
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