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[Xen-devel] Xen on ARM: upstream kernel compile fails with defconfig


I'm trying to do a default ARM build to verify my grant mapping patches doesn't break build. I'm using latest net-next tree as a basis, and I'm trying to build it based this howto:


(note, the actual CPU doesn't matter to me, I just want a default build to succeed. Also, net-next is only used because that was checked out, and I assume it should work as well)

I'm doing cross-compilation, so my make looks like this:

PATH="/local/repo/arm/gcc-linaro-arm-linux-gnueabihf-4.8-2013.10_linux/bin/:$PATH" make -j8 O=../o-arm ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- zImage

For config I've tried sunxi_defconfig (which actually doesn't have Xen enabled) and arndale_ubuntu_defconfig from Julien's repo:


However both cases the build fails quite early with the same error:

  CC      arch/arm/kernel/asm-offsets.s
In file included from /local/repo/linux-net-next/include/linux/cache.h:5:0,
                 from /local/repo/linux-net-next/include/linux/printk.h:8,
                 from /local/repo/linux-net-next/include/linux/kernel.h:13,
                 from /local/repo/linux-net-next/include/linux/sched.h:15,
from /local/repo/linux-net-next/arch/arm/kernel/asm-offsets.c:13: /local/repo/linux-net-next/include/linux/prefetch.h: In function ‘prefetch_range’: /local/repo/linux-net-next/arch/arm/include/asm/cache.h:7:25: error: ‘CONFIG_ARM_L1_CACHE_SHIFT’ undeclared (first use in this function)

So far I figured out that autoconf.h is not included here, that CONFIG_ is defined there. But I'm not that familiar with the kernel build system, so I'm a bit stucked here. Probably I'm doing something trivially wrong, can someone help me? Btw. on Julian's repo from the Arndale page I could compile, but that's too old for my patch to apply. My main goal is to compile an upstream kernel with Xen, and then check if my patch breaks it.



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