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-rw-r--r--classes/kernel-arch.bbclass26
1 files changed, 26 insertions, 0 deletions
diff --git a/classes/kernel-arch.bbclass b/classes/kernel-arch.bbclass
index e69de29bb2..92a6c982fb 100644
--- a/classes/kernel-arch.bbclass
+++ b/classes/kernel-arch.bbclass
@@ -0,0 +1,26 @@
+#
+# set the ARCH environment variable for kernel compilation (including
+# modules). return value must match one of the architecture directories
+# in the kernel source "arch" directory
+#
+
+valid_archs = "alpha cris ia64 m68knommu ppc sh \
+ sparc64 x86_64 arm h8300 m32r mips \
+ ppc64 sh64 um arm26 i386 m68k \
+ parisc s390 sparc v850"
+
+def map_kernel_arch(a, d):
+ import bb, re
+
+ valid_archs = bb.data.getVar('valid_archs', d, 1).split()
+
+ if re.match('(i.86|athlon)$', a): return 'i386'
+ elif re.match('arm26$', a): return 'arm26'
+ elif re.match('armeb$', a): return 'arm'
+ elif re.match('powerpc$', a): return 'ppc'
+ elif re.match('mipsel$', a): return 'mips'
+ elif a in valid_archs: return a
+ else:
+ bb.error("cannot map '%s' to a linux kernel architecture" % a)
+
+export ARCH = "${@map_kernel_arch(bb.data.getVar('TARGET_ARCH', d, 1), d)}"