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If a distro sets TOOLCHAIN with ?= or = then it overrides this too, however, we demand GCC to be in there due to KERNEL_CC etal Make it hard assignment, it can still be overturned via a bbappend in that case it is intentional to use non-gcc compiler for kernel (From OE-Core rev: 307902aa05c4537cb34fffe768df1547fb6a12d8) Signed-off-by: Khem Raj <raj.khem@gmail.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
85 lines
3.1 KiB
Plaintext
85 lines
3.1 KiB
Plaintext
#
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# Copyright OpenEmbedded Contributors
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#
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# SPDX-License-Identifier: MIT
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#
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#
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# set the ARCH environment variable for kernel compilation (including
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# modules). return value must match one of the architecture directories
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# in the kernel source "arch" directory
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#
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valid_archs = "alpha cris ia64 \
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i386 x86 \
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m68knommu m68k ppc powerpc powerpc64 ppc64 \
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sparc sparc64 \
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arm aarch64 \
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m32r mips \
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sh sh64 um h8300 \
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parisc s390 v850 \
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avr32 blackfin \
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loongarch64 \
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microblaze \
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nios2 arc riscv xtensa"
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def map_kernel_arch(a, d):
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import re
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valid_archs = d.getVar('valid_archs').split()
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if re.match('(i.86|athlon|x86.64)$', a): return 'x86'
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elif re.match('arceb$', a): return 'arc'
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elif re.match('armeb$', a): return 'arm'
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elif re.match('aarch64$', a): return 'arm64'
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elif re.match('aarch64_be$', a): return 'arm64'
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elif re.match('aarch64_ilp32$', a): return 'arm64'
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elif re.match('aarch64_be_ilp32$', a): return 'arm64'
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elif re.match('loongarch(32|64|)$', a): return 'loongarch'
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elif re.match('mips(isa|)(32|64|)(r6|)(el|)$', a): return 'mips'
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elif re.match('mcf', a): return 'm68k'
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elif re.match('riscv(32|64|)(eb|)$', a): return 'riscv'
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elif re.match('p(pc|owerpc)(|64)', a): return 'powerpc'
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elif re.match('sh(3|4)$', a): return 'sh'
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elif re.match('bfin', a): return 'blackfin'
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elif re.match('microblazee[bl]', a): return 'microblaze'
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elif a in valid_archs: return a
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else:
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if not d.getVar("TARGET_OS").startswith("linux"):
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return a
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bb.error("cannot map '%s' to a linux kernel architecture" % a)
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export ARCH = "${@map_kernel_arch(d.getVar('TARGET_ARCH'), d)}"
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def map_uboot_arch(a, d):
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import re
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if re.match('p(pc|owerpc)(|64)', a): return 'ppc'
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elif re.match('i.86$', a): return 'x86'
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return a
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export UBOOT_ARCH = "${@map_uboot_arch(d.getVar('ARCH'), d)}"
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# Set TARGET_??_KERNEL_ARCH in the machine .conf to set architecture
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# specific options necessary for building the kernel and modules.
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TARGET_CC_KERNEL_ARCH ?= ""
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HOST_CC_KERNEL_ARCH ?= "${TARGET_CC_KERNEL_ARCH}"
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TARGET_LD_KERNEL_ARCH ?= ""
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HOST_LD_KERNEL_ARCH ?= "${TARGET_LD_KERNEL_ARCH}"
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TARGET_AR_KERNEL_ARCH ?= ""
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HOST_AR_KERNEL_ARCH ?= "${TARGET_AR_KERNEL_ARCH}"
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TARGET_OBJCOPY_KERNEL_ARCH ?= ""
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HOST_OBJCOPY_KERNEL_ARCH ?= "${TARGET_OBJCOPY_KERNEL_ARCH}"
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KERNEL_CC = "${CCACHE}${HOST_PREFIX}gcc ${HOST_CC_KERNEL_ARCH} \
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-fuse-ld=bfd ${DEBUG_PREFIX_MAP} \
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-ffile-prefix-map=${STAGING_KERNEL_DIR}=${KERNEL_SRC_PATH} \
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-ffile-prefix-map=${STAGING_KERNEL_BUILDDIR}=${KERNEL_SRC_PATH} \
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"
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KERNEL_LD = "${HOST_PREFIX}ld.bfd ${HOST_LD_KERNEL_ARCH}"
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KERNEL_AR = "${HOST_PREFIX}ar ${HOST_AR_KERNEL_ARCH}"
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KERNEL_OBJCOPY = "${HOST_PREFIX}objcopy ${HOST_OBJCOPY_KERNEL_ARCH}"
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# Code in package.py can't handle options on KERNEL_STRIP
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KERNEL_STRIP = "${HOST_PREFIX}strip"
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TOOLCHAIN = "gcc"
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