| # |
| # 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)$', a): return 'x86' |
| elif re.match('armeb$', 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|)$', a): return 'mips' |
| elif re.match('riscv(32|64|)(eb|)$', 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" |
| |