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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 \
i386 x86 \
m68knommu m68k ppc powerpc powerpc64 ppc64 \
sparc sparc64 \
arm aarch64 \
m32r mips \
sh sh64 um h8300 \
parisc s390 v850 \
avr32 blackfin \
microblaze \
nios2 arc riscv xtensa"
def map_kernel_arch(a, d):
import re
valid_archs = d.getVar('valid_archs').split()
if re.match('(i.86|athlon|x86.64)$', a): return 'x86'
elif re.match('arceb$', a): return 'arc'
elif re.match('armeb$', a): return 'arm'
elif re.match('aarch64$', a): return 'arm64'
elif re.match('aarch64_be$', a): return 'arm64'
elif re.match('aarch64_ilp32$', a): return 'arm64'
elif re.match('aarch64_be_ilp32$', a): return 'arm64'
elif re.match('mips(isa|)(32|64|)(r6|)(el|)$', a): return 'mips'
elif re.match('mcf', a): return 'm68k'
elif re.match('riscv(32|64|)(eb|)$', a): return 'riscv'
elif re.match('p(pc|owerpc)(|64)', a): return 'powerpc'
elif re.match('sh(3|4)$', a): return 'sh'
elif re.match('bfin', a): return 'blackfin'
elif re.match('microblazee[bl]', a): return 'microblaze'
elif a in valid_archs: return a
else:
if not d.getVar("TARGET_OS").startswith("linux"):
return a
bb.error("cannot map '%s' to a linux kernel architecture" % a)
export ARCH = "${@map_kernel_arch(d.getVar('TARGET_ARCH'), d)}"
def map_uboot_arch(a, d):
import re
if re.match('p(pc|owerpc)(|64)', a): return 'ppc'
elif re.match('i.86$', a): return 'x86'
return a
export UBOOT_ARCH = "${@map_uboot_arch(d.getVar('ARCH'), d)}"
# Set TARGET_??_KERNEL_ARCH in the machine .conf to set architecture
# specific options necessary for building the kernel and modules.
TARGET_CC_KERNEL_ARCH ?= ""
HOST_CC_KERNEL_ARCH ?= "${TARGET_CC_KERNEL_ARCH}"
TARGET_LD_KERNEL_ARCH ?= ""
HOST_LD_KERNEL_ARCH ?= "${TARGET_LD_KERNEL_ARCH}"
TARGET_AR_KERNEL_ARCH ?= ""
HOST_AR_KERNEL_ARCH ?= "${TARGET_AR_KERNEL_ARCH}"
KERNEL_CC = "${CCACHE}${HOST_PREFIX}gcc ${HOST_CC_KERNEL_ARCH} -fuse-ld=bfd ${DEBUG_PREFIX_MAP} -fdebug-prefix-map=${STAGING_KERNEL_DIR}=${KERNEL_SRC_PATH}"
KERNEL_LD = "${CCACHE}${HOST_PREFIX}ld.bfd ${HOST_LD_KERNEL_ARCH}"
KERNEL_AR = "${CCACHE}${HOST_PREFIX}ar ${HOST_AR_KERNEL_ARCH}"
TOOLCHAIN = "gcc"
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