1# 2# Copyright OpenEmbedded Contributors 3# 4# SPDX-License-Identifier: MIT 5# 6 7# 8# set the ARCH environment variable for kernel compilation (including 9# modules). return value must match one of the architecture directories 10# in the kernel source "arch" directory 11# 12 13valid_archs = "alpha cris ia64 \ 14 i386 x86 \ 15 m68knommu m68k ppc powerpc powerpc64 ppc64 \ 16 sparc sparc64 \ 17 arm aarch64 \ 18 m32r mips \ 19 sh sh64 um h8300 \ 20 parisc s390 v850 \ 21 avr32 blackfin \ 22 microblaze \ 23 nios2 arc riscv xtensa" 24 25def map_kernel_arch(a, d): 26 import re 27 28 valid_archs = d.getVar('valid_archs').split() 29 30 if re.match('(i.86|athlon|x86.64)$', a): return 'x86' 31 elif re.match('arceb$', a): return 'arc' 32 elif re.match('armeb$', a): return 'arm' 33 elif re.match('aarch64$', a): return 'arm64' 34 elif re.match('aarch64_be$', a): return 'arm64' 35 elif re.match('aarch64_ilp32$', a): return 'arm64' 36 elif re.match('aarch64_be_ilp32$', a): return 'arm64' 37 elif re.match('mips(isa|)(32|64|)(r6|)(el|)$', a): return 'mips' 38 elif re.match('mcf', a): return 'm68k' 39 elif re.match('riscv(32|64|)(eb|)$', a): return 'riscv' 40 elif re.match('p(pc|owerpc)(|64)', a): return 'powerpc' 41 elif re.match('sh(3|4)$', a): return 'sh' 42 elif re.match('bfin', a): return 'blackfin' 43 elif re.match('microblazee[bl]', a): return 'microblaze' 44 elif a in valid_archs: return a 45 else: 46 if not d.getVar("TARGET_OS").startswith("linux"): 47 return a 48 bb.error("cannot map '%s' to a linux kernel architecture" % a) 49 50export ARCH = "${@map_kernel_arch(d.getVar('TARGET_ARCH'), d)}" 51 52def map_uboot_arch(a, d): 53 import re 54 55 if re.match('p(pc|owerpc)(|64)', a): return 'ppc' 56 elif re.match('i.86$', a): return 'x86' 57 return a 58 59export UBOOT_ARCH = "${@map_uboot_arch(d.getVar('ARCH'), d)}" 60 61# Set TARGET_??_KERNEL_ARCH in the machine .conf to set architecture 62# specific options necessary for building the kernel and modules. 63TARGET_CC_KERNEL_ARCH ?= "" 64HOST_CC_KERNEL_ARCH ?= "${TARGET_CC_KERNEL_ARCH}" 65TARGET_LD_KERNEL_ARCH ?= "" 66HOST_LD_KERNEL_ARCH ?= "${TARGET_LD_KERNEL_ARCH}" 67TARGET_AR_KERNEL_ARCH ?= "" 68HOST_AR_KERNEL_ARCH ?= "${TARGET_AR_KERNEL_ARCH}" 69 70KERNEL_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}=${KERNEL_SRC_PATH}" 71KERNEL_LD = "${CCACHE}${HOST_PREFIX}ld.bfd ${HOST_LD_KERNEL_ARCH}" 72KERNEL_AR = "${CCACHE}${HOST_PREFIX}ar ${HOST_AR_KERNEL_ARCH}" 73TOOLCHAIN ?= "gcc" 74 75