From 8d310b24927d0f348fb431895f0583733db2aad0 Mon Sep 17 00:00:00 2001 From: Jianxun Zhang Date: Tue, 12 Jan 2016 13:53:56 -0800 Subject: kernel/kernel-arch: Explicitly mapping between i386/x86_64 and x86 for kernel ARCH For a bare-bone kernel recipe which specifies 32 bit x86 target, a 64 bit .config will be generated from do_configure task when building 32-bit qemux86, once all of these conditions are true: * arch of host is x86_64 * kernel source tree used in build has commit ffee0de41 which actually chooses i386 or x86_64 defconfig by asking host when ARCH is "x86" (arch/x86/Makefile) * bare-bone kernel recipe inherits directly from kernel without other special treatments. Build will fail because of the mismatched kernel architecture. The patch sets ARCH i386 or x86_64 explicitly to configure task to avoid this host contamination. Kernel artifact is also changed so that it can map i386 and x64 back to arch/x86 when needed. Signed-off-by: Jianxun Zhang Signed-off-by: Richard Purdie --- meta/classes/kernel.bbclass | 15 ++++++++++++--- 1 file changed, 12 insertions(+), 3 deletions(-) (limited to 'meta/classes/kernel.bbclass') diff --git a/meta/classes/kernel.bbclass b/meta/classes/kernel.bbclass index 997376d126..5c3287bb98 100644 --- a/meta/classes/kernel.bbclass +++ b/meta/classes/kernel.bbclass @@ -317,9 +317,18 @@ do_shared_workdir () { cp -fR include/generated/* $kerneldir/include/generated/ fi - if [ -d arch/${ARCH}/include/generated ]; then - mkdir -p $kerneldir/arch/${ARCH}/include/generated/ - cp -fR arch/${ARCH}/include/generated/* $kerneldir/arch/${ARCH}/include/generated/ + # When ARCH is set to i386 or x86_64, we need to map ARCH to the real name of src + # dir (x86) under arch/ of kenrel tree, so that we can find correct source to copy. + + if [ "${ARCH}" = "i386" ] || [ "${ARCH}" = "x86_64" ]; then + KERNEL_SRCARCH=x86 + else + KERNEL_SRCARCH=${ARCH} + fi + + if [ -d arch/${KERNEL_SRCARCH}/include/generated ]; then + mkdir -p $kerneldir/arch/${KERNEL_SRCARCH}/include/generated/ + cp -fR arch/${KERNEL_SRCARCH}/include/generated/* $kerneldir/arch/${KERNEL_SRCARCH}/include/generated/ fi } -- cgit 1.2.3-korg