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 <[email protected]> --- The old V1 broke lttng-modules building in the last submission. This V2 updates kernel artifact to fix it. Considering there are multiple references of ARCH in poky, a better test coverage is suggested before merging it to mainline, even I have done some build tests prior to submission. meta/classes/kernel-arch.bbclass | 4 +++- meta/classes/kernel.bbclass | 15 ++++++++++++--- 2 files changed, 15 insertions(+), 4 deletions(-) diff --git a/meta/classes/kernel-arch.bbclass b/meta/classes/kernel-arch.bbclass index 3ed5986..d8b180e 100644 --- a/meta/classes/kernel-arch.bbclass +++ b/meta/classes/kernel-arch.bbclass @@ -21,7 +21,9 @@ def map_kernel_arch(a, d): valid_archs = d.getVar('valid_archs', True).split() - if re.match('(i.86|athlon|x86.64)$', a): return 'x86' + if re.match('i.86$', a): return 'i386' + elif re.match('x86.64$', a): return 'x86_64' + elif re.match('athlon$', a): return 'x86' elif re.match('armeb$', a): return 'arm' elif re.match('aarch64$', a): return 'arm64' elif re.match('aarch64_be$', a): return 'arm64' diff --git a/meta/classes/kernel.bbclass b/meta/classes/kernel.bbclass index 997376d..5c3287b 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 } -- 1.9.1 -- _______________________________________________ Openembedded-core mailing list [email protected] http://lists.openembedded.org/mailman/listinfo/openembedded-core
