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a6f52930a6
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. (From OE-Core rev: 6ffcfc0bc08bcbe81e17ceeb7094f09cc9214b94) Signed-off-by: Jianxun Zhang <jianxun.zhang@linux.intel.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
63 lines
2.3 KiB
Plaintext
63 lines
2.3 KiB
Plaintext
#
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# set the ARCH environment variable for kernel compilation (including
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# modules). return value must match one of the architecture directories
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# in the kernel source "arch" directory
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#
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valid_archs = "alpha cris ia64 \
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i386 x86 \
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m68knommu m68k ppc powerpc powerpc64 ppc64 \
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sparc sparc64 \
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arm aarch64 \
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m32r mips \
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sh sh64 um h8300 \
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parisc s390 v850 \
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avr32 blackfin \
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microblaze \
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nios2"
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def map_kernel_arch(a, d):
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import re
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valid_archs = d.getVar('valid_archs', True).split()
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if re.match('i.86$', a): return 'i386'
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elif re.match('x86.64$', a): return 'x86_64'
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elif re.match('athlon$', a): return 'x86'
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elif re.match('armeb$', a): return 'arm'
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elif re.match('aarch64$', a): return 'arm64'
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elif re.match('aarch64_be$', a): return 'arm64'
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elif re.match('mips(el|64|64el)$', a): return 'mips'
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elif re.match('p(pc|owerpc)(|64)', a): return 'powerpc'
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elif re.match('sh(3|4)$', a): return 'sh'
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elif re.match('bfin', a): return 'blackfin'
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elif re.match('microblazee[bl]', a): return 'microblaze'
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elif a in valid_archs: return a
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else:
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bb.error("cannot map '%s' to a linux kernel architecture" % a)
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export ARCH = "${@map_kernel_arch(d.getVar('TARGET_ARCH', True), d)}"
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def map_uboot_arch(a, d):
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import re
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if re.match('p(pc|owerpc)(|64)', a): return 'ppc'
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elif re.match('i.86$', a): return 'x86'
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return a
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export UBOOT_ARCH = "${@map_uboot_arch(d.getVar('ARCH', True), d)}"
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# Set TARGET_??_KERNEL_ARCH in the machine .conf to set architecture
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# specific options necessary for building the kernel and modules.
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TARGET_CC_KERNEL_ARCH ?= ""
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HOST_CC_KERNEL_ARCH ?= "${TARGET_CC_KERNEL_ARCH}"
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TARGET_LD_KERNEL_ARCH ?= ""
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HOST_LD_KERNEL_ARCH ?= "${TARGET_LD_KERNEL_ARCH}"
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TARGET_AR_KERNEL_ARCH ?= ""
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HOST_AR_KERNEL_ARCH ?= "${TARGET_AR_KERNEL_ARCH}"
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KERNEL_CC = "${CCACHE}${HOST_PREFIX}gcc ${HOST_CC_KERNEL_ARCH} -fuse-ld=bfd"
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KERNEL_LD = "${CCACHE}${HOST_PREFIX}ld.bfd ${HOST_LD_KERNEL_ARCH}"
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KERNEL_AR = "${CCACHE}${HOST_PREFIX}ar ${HOST_AR_KERNEL_ARCH}"
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