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authorJianxun Zhang <jianxun.zhang@linux.intel.com>2016-01-12 13:53:56 -0800
committerRichard Purdie <richard.purdie@linuxfoundation.org>2016-01-15 15:44:00 +0000
commit6ffcfc0bc08bcbe81e17ceeb7094f09cc9214b94 (patch)
tree7a8d3811de6653735cf3dac0b7040e8455387a0e /meta
parentb31fc9b167e5ca3115a0d0169126d63f2dbd3824 (diff)
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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 <jianxun.zhang@linux.intel.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Diffstat (limited to 'meta')
-rw-r--r--meta/classes/kernel-arch.bbclass4
-rw-r--r--meta/classes/kernel.bbclass15
2 files changed, 15 insertions, 4 deletions
diff --git a/meta/classes/kernel-arch.bbclass b/meta/classes/kernel-arch.bbclass
index 3ed5986a52..d8b180ec49 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 5e8b6cf343..ee3e9a0d94 100644
--- a/meta/classes/kernel.bbclass
+++ b/meta/classes/kernel.bbclass
@@ -309,9 +309,18 @@ 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
}