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#
# Configuration to use an external Arm binary toolchain
#
EXTERNAL_TOOLCHAIN ?= "/usr/local/arm-binary-toolchain/${TARGET_ARCH}"
TOOLCHAIN_PATH_ADD = "${EXTERNAL_TOOLCHAIN}/bin:"
PATH =. "${TOOLCHAIN_PATH_ADD}"
EAT_TARGET_SYS_arm ?= "arm-linux-gnueabihf"
EAT_TARGET_SYS_aarch64 ?= "aarch64-linux-gnu"
EAT_TARGET_SYS = "${TARGET_SYS}"
TARGET_PREFIX = "${EAT_TARGET_SYS}-"
EAT_LIBDIR_arm = "lib"
EAT_LIBDIR_aarch64 = "lib64"
GCCMULTILIB_forcevariable = "--disable-multilib"
IMAGE_LINGUAS_forcevariable = ""
# Blacklist toolchain recipes as a belt-and-suspenders way to use the external toolchain
PNBLACKLIST[glibc] = "Using external toolchain"
PNBLACKLIST[libgcc] = "Using external toolchain"
PNBLACKLIST[gcc-cross] = "Using external toolchain"
PNBLACKLIST[gcc-runtime] = "Using external toolchain"
PREFERRED_PROVIDER_linux-libc-headers = "external-arm-toolchain"
PREFERRED_PROVIDER_linux-libc-headers-dev = "external-arm-toolchain"
PREFERRED_PROVIDER_virtual/${TARGET_PREFIX}gcc = "external-arm-toolchain"
PREFERRED_PROVIDER_virtual/${TARGET_PREFIX}gcc-initial = "external-arm-toolchain"
PREFERRED_PROVIDER_virtual/${TARGET_PREFIX}g++ = "external-arm-toolchain"
PREFERRED_PROVIDER_virtual/${TARGET_PREFIX}binutils = "external-arm-toolchain"
PREFERRED_PROVIDER_virtual/${TARGET_PREFIX}libc-for-gcc = "external-arm-toolchain"
PREFERRED_PROVIDER_virtual/${TARGET_PREFIX}compilerlibs = "external-arm-toolchain"
PREFERRED_PROVIDER_glibc = "external-arm-toolchain"
PREFERRED_PROVIDER_libgcc = "external-arm-toolchain"
PREFERRED_PROVIDER_virtual/libc = "external-arm-toolchain"
PREFERRED_PROVIDER_virtual/libc-locale = "external-arm-toolchain"
PREFERRED_PROVIDER_virtual/libintl = "external-arm-toolchain"
PREFERRED_PROVIDER_virtual/libiconv = "external-arm-toolchain"
PREFERRED_PROVIDER_virtual/crypt = "external-arm-toolchain"
PREFERRED_PROVIDER_glibc-thread-db = "external-arm-toolchain"
PREFERRED_PROVIDER_glibc-mtrace = "external-arm-toolchain"
PREFERRED_PROVIDER_libc-mtrace = "external-arm-toolchain"
PREFERRED_PROVIDER_virtual/linux-libc-headers = "external-arm-toolchain"
TARGET_CPPFLAGS_prepend = " -isystem${EXTERNAL_TOOLCHAIN}/${EAT_TARGET_SYS}/include "
TARGET_LDFLAGS_prepend = " -L${EXTERNAL_TOOLCHAIN}/${EAT_TARGET_SYS}/lib -Wl,-rpath-link,${EXTERNAL_TOOLCHAIN}/${EAT_TARGET_SYS}/lib "
TOOLCHAIN_OPTIONS = " --sysroot=${STAGING_DIR_HOST}"
DISTRO_FEATURES_LIBC = "ipv4 ipv6 libc-backtrace libc-big-macros libc-bsd libc-cxx-tests libc-catgets libc-crypt \
libc-crypt-ufc libc-db-aliases libc-envz libc-fcvt libc-fmtmsg libc-fstab libc-ftraverse \
libc-getlogin libc-idn libc-inet-anl libc-libm libc-libm-big \
libc-memusage libc-nis libc-nsswitch libc-rcmd libc-rtld-debug libc-spawn libc-streams libc-sunrpc \
libc-utmp libc-utmpx libc-wordexp libc-posix-clang-wchar libc-posix-regexp libc-posix-regexp-glibc \
libc-posix-wchar-io"
ENABLE_BINARY_LOCALE_GENERATION = "0"
GLIBC_INTERNAL_USE_BINARY_LOCALE = "precompiled"
LIBCOVERRIDE = ":libc-glibc"
ERROR_QA[type] ?= "list"
python toolchain_metadata_setup () {
import subprocess
if not isinstance(e, bb.event.ConfigParsed):
return
d = e.data
l = d.createCopy()
l.finalize()
oe_import(l)
external_toolchain = l.getVar('EXTERNAL_TOOLCHAIN', True)
if not external_toolchain or external_toolchain == 'UNDEFINED':
bb.fatal("Error: EXTERNAL_TOOLCHAIN must be set to the path to your arm toolchain")
if not os.path.exists(external_toolchain):
bb.fatal("Error: EXTERNAL_TOOLCHAIN path '%s' does not exist" % external_toolchain)
# The external toolchain may not have been built with the oe-core preferred
# gnu hash setting, so ensure that the corresponding sanity check is not an error.
error_qa = oe.data.typed_value('ERROR_QA', l)
if 'ldflags' in error_qa:
error_qa.remove('ldflags')
d.setVar('ERROR_QA', ' '.join(error_qa))
}
addhandler toolchain_metadata_setup
def populate_toolchain_links(d):
import errno
import os
from glob import glob
d = d.createCopy()
d.finalize()
pattern = bb.data.expand('${EXTERNAL_TOOLCHAIN}/bin/${TARGET_PREFIX}*', d)
files = glob(pattern)
if not files:
bb.fatal("Unable to populate toolchain binary symlinks")
bindir = d.getVar('STAGING_BINDIR_TOOLCHAIN', True)
bb.mkdirhier(bindir)
for f in files:
base = os.path.basename(f)
newpath = os.path.join(bindir, base)
try:
os.symlink(f, newpath)
except OSError as exc:
if exc.errno == errno.EEXIST:
break
bb.fatal("Unable to populate toolchain binary symlink for %s: %s" % (newpath, exc))
require conf/distro/include/external-arm-toolchain-versions.inc
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