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#
# 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$', a): return 'mips'
elif re.match('sh(3|4)$', a): return 'sh'
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)}"
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