1# 2# set the ARCH environment variable for kernel compilation (including 3# modules). return value must match one of the architecture directories 4# in the kernel source "arch" directory 5# 6 7valid_archs = "alpha cris ia64 \ 8 i386 x86 \ 9 m68knommu m68k ppc powerpc powerpc64 ppc64 \ 10 sparc sparc64 \ 11 arm aarch64 \ 12 m32r mips \ 13 sh sh64 um h8300 \ 14 parisc s390 v850 \ 15 avr32 blackfin \ 16 microblaze \ 17 nios2 arc riscv xtensa" 18 19def map_kernel_arch(a, d): 20 import re 21 22 valid_archs = d.getVar('valid_archs').split() 23 24 if re.match('(i.86|athlon|x86.64)$', a): return 'x86' 25 elif re.match('arceb$', a): return 'arc' 26 elif re.match('armeb$', a): return 'arm' 27 elif re.match('aarch64$', a): return 'arm64' 28 elif re.match('aarch64_be$', a): return 'arm64' 29 elif re.match('aarch64_ilp32$', a): return 'arm64' 30 elif re.match('aarch64_be_ilp32$', a): return 'arm64' 31 elif re.match('mips(isa|)(32|64|)(r6|)(el|)$', a): return 'mips' 32 elif re.match('mcf', a): return 'm68k' 33 elif re.match('riscv(32|64|)(eb|)$', a): return 'riscv' 34 elif re.match('p(pc|owerpc)(|64)', a): return 'powerpc' 35 elif re.match('sh(3|4)$', a): return 'sh' 36 elif re.match('bfin', a): return 'blackfin' 37 elif re.match('microblazee[bl]', a): return 'microblaze' 38 elif a in valid_archs: return a 39 else: 40 if not d.getVar("TARGET_OS").startswith("linux"): 41 return a 42 bb.error("cannot map '%s' to a linux kernel architecture" % a) 43 44export ARCH = "${@map_kernel_arch(d.getVar('TARGET_ARCH'), d)}" 45 46def map_uboot_arch(a, d): 47 import re 48 49 if re.match('p(pc|owerpc)(|64)', a): return 'ppc' 50 elif re.match('i.86$', a): return 'x86' 51 return a 52 53export UBOOT_ARCH = "${@map_uboot_arch(d.getVar('ARCH'), d)}" 54 55# Set TARGET_??_KERNEL_ARCH in the machine .conf to set architecture 56# specific options necessary for building the kernel and modules. 57TARGET_CC_KERNEL_ARCH ?= "" 58HOST_CC_KERNEL_ARCH ?= "${TARGET_CC_KERNEL_ARCH}" 59TARGET_LD_KERNEL_ARCH ?= "" 60HOST_LD_KERNEL_ARCH ?= "${TARGET_LD_KERNEL_ARCH}" 61TARGET_AR_KERNEL_ARCH ?= "" 62HOST_AR_KERNEL_ARCH ?= "${TARGET_AR_KERNEL_ARCH}" 63 64KERNEL_CC = "${CCACHE}${HOST_PREFIX}gcc ${HOST_CC_KERNEL_ARCH} -fuse-ld=bfd ${DEBUG_PREFIX_MAP} -fdebug-prefix-map=${STAGING_KERNEL_DIR}=${KERNEL_SRC_PATH} -fdebug-prefix-map=${STAGING_KERNEL_BUILDDIR}=${KERNEL_SRC_PATH}" 65KERNEL_LD = "${CCACHE}${HOST_PREFIX}ld.bfd ${HOST_LD_KERNEL_ARCH}" 66KERNEL_AR = "${CCACHE}${HOST_PREFIX}ar ${HOST_AR_KERNEL_ARCH}" 67TOOLCHAIN ?= "gcc" 68 69