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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|)$', a): return 'riscv'
- elif re.match('csky', a): return 'csky'
- elif re.match('p(pc|owerpc)(|64)', a): return 'powerpc'
- elif re.match('sh(3|4)$', 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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