My attempted, xtoolchain-gcc based, amd64->aarch64 cross-buildworld-buildkernel failed with:
--- libc.so.7.full --- /usr/local/bin/aarch64-unknown-freebsd12.0-ld: /usr/local/libexec/gcc/aarch64-unknown-freebsd12.0/6.3.0/liblto_plugin.so: error loading plugin: Service unavailable collect2: error: ld returned 1 exit status *** [libc.so.7.full] Error code 1 (I've not attempted such a build in a long time, so I do not know how new this is. Historically I've done lots of such builds. cortex-a53 was specifically targeted here.) For reference: # uname -apKU FreeBSD FBSDFSSD 12.0-CURRENT FreeBSD 12.0-CURRENT r332181M amd64 amd64 1200061 1200061 # pkg info "*binutils" aarch64-binutils-2.30_2,1 amd64-binutils-2.30_2,1 binutils-2.30_2,1 powerpc64-binutils-2.30_2,1 # svnlite info /usr/ports/ | grep "Re[plv]" Relative URL: ^/head Repository Root: svn://svn.freebsd.org/ports Repository UUID: 35697150-7ecd-e111-bb59-0022644237b5 Revision: 466704 Last Changed Rev: 466704 # file /usr/local/libexec/gcc/*/*/liblto* /usr/local/libexec/gcc/aarch64-unknown-freebsd12.0/6.3.0/liblto_plugin.so: symbolic link to liblto_plugin.so.0.0.0 /usr/local/libexec/gcc/aarch64-unknown-freebsd12.0/6.3.0/liblto_plugin.so.0: symbolic link to liblto_plugin.so.0.0.0 /usr/local/libexec/gcc/aarch64-unknown-freebsd12.0/6.3.0/liblto_plugin.so.0.0.0: ELF 64-bit LSB shared object, x86-64, version 1 (FreeBSD), dynamically linked, with debug_info, not stripped /usr/local/libexec/gcc/powerpc64-unknown-freebsd12.0/6.3.0/liblto_plugin.so: symbolic link to liblto_plugin.so.0.0.0 /usr/local/libexec/gcc/powerpc64-unknown-freebsd12.0/6.3.0/liblto_plugin.so.0: symbolic link to liblto_plugin.so.0.0.0 /usr/local/libexec/gcc/powerpc64-unknown-freebsd12.0/6.3.0/liblto_plugin.so.0.0.0: ELF 64-bit LSB shared object, x86-64, version 1 (FreeBSD), dynamically linked, with debug_info, not stripped /usr/local/libexec/gcc/x86_64-unknown-freebsd12.0/6.3.0/liblto_plugin.so: symbolic link to liblto_plugin.so.0.0.0 /usr/local/libexec/gcc/x86_64-unknown-freebsd12.0/6.3.0/liblto_plugin.so.0: symbolic link to liblto_plugin.so.0.0.0 /usr/local/libexec/gcc/x86_64-unknown-freebsd12.0/6.3.0/liblto_plugin.so.0.0.0: ELF 64-bit LSB shared object, x86-64, version 1 (FreeBSD), dynamically linked, with debug_info, not stripped make[4]: stopped in /usr/src/lib/libc .ERROR_TARGET='libc.so.7.full' .ERROR_META_FILE='/usr/obj/cortexA53_xtoolchain-gcc/arm64.aarch64/usr/src/arm64.aarch64/lib/libc/libc.so.7.full.meta' .MAKE.LEVEL='4' MAKEFILE='' .MAKE.MODE='meta missing-filemon=yes missing-meta=yes silent=yes verbose' _ERROR_CMD='@echo building shared library libc.so.7; @rm -f libc.so.7 libc.so; /usr/local/bin/aarch64-unknown-freebsd12.0-gcc -mcpu=cortex-a53 -isystem /usr/obj/cortexA53_xtoolchain-gcc/arm64.aarch64/usr/src/arm64.aarch64/tmp/usr/include -L/usr/obj/cortexA53_xtoolchain-gcc/arm64.aarch64/usr/src/arm64.aarch64/tmp/usr/lib -B/usr/obj/cortexA53_xtoolchain-gcc/arm64.aarch64/usr/src/arm64.aarch64/tmp/usr/lib --sysroot=/usr/obj/cortexA53_xtoolchain-gcc/arm64.aarch64/usr/src/arm64.aarch64/tmp -B/usr/local/aarch64-unknown-freebsd12.0/bin/ -nodefaultlibs -Wl,--version-script=Version.map -shared -Wl,-x -Wl,--fatal-warnings -Wl,--warn-shared-textrel -o libc.so.7.full -Wl,-soname,libc.so.7 `NM='/usr/local/aarch64-unknown-freebsd12.0/bin/nm' NMFLAGS='' lorder machdep_ldisQ.pico . . . wcspbrk.pico wcsrchr.pico wcsspn.pico wcsstr.pico wcstok.pico wcswidth.pico wcsxfrm.pico wmemchr.pico wmemcmp.pico wmemcpy.pico wmemmove.pico wmemset.pico | tsort -q` -lcompiler_rt -lssp_nonshared;' .CURDIR='/usr/src/lib/libc' .MAKE='make' .OBJDIR='/usr/obj/cortexA53_xtoolchain-gcc/arm64.aarch64/usr/src/arm64.aarch64/lib/libc' .TARGETS='all' DESTDIR='/usr/obj/cortexA53_xtoolchain-gcc/arm64.aarch64/usr/src/arm64.aarch64/tmp' LD_LIBRARY_PATH='' MACHINE='arm64' MACHINE_ARCH='aarch64' MAKEOBJDIRPREFIX='' MAKESYSPATH='/usr/src/share/mk' MAKE_VERSION='20180222' PATH='/usr/obj/cortexA53_xtoolchain-gcc/arm64.aarch64/usr/src/arm64.aarch64/tmp/legacy/usr/sbin:/usr/obj/cortexA53_xtoolchain-gcc/arm64.aarch64/usr/src/arm64.aarch64/tmp/legacy/usr/bin:/usr/obj/cortexA53_xtoolchain-gcc/arm64.aarch64/usr/src/arm64.aarch64/tmp/legacy/bin:/usr/obj/cortexA53_xtoolchain-gcc/arm64.aarch64/usr/src/arm64.aarch64/tmp/usr/sbin:/usr/obj/cortexA53_xtoolchain-gcc/arm64.aarch64/usr/src/arm64.aarch64/tmp/usr/bin:/sbin:/bin:/usr/sbin:/usr/bin' SRCTOP='/usr/src' OBJTOP='/usr/obj/cortexA53_xtoolchain-gcc/arm64.aarch64/usr/src/arm64.aarch64' .MAKE.MAKEFILES='/usr/src/share/mk/sys.mk /usr/src/share/mk/local.sys.env.mk /usr/src/share/mk/src.sys.env.mk /root/src.configs/src.conf.cortexA53-xtoolchain-gcc.amd64-host /usr/src/share/mk/bsd.mkopt.mk /usr/src/share/mk/src.sys.obj.mk /usr/src/share/mk/auto.obj.mk /usr/src/share/mk/bsd.suffixes.mk /root/src.configs/make.conf /usr/src/share/mk/local.sys.mk /usr/src/share/mk/src.sys.mk /dev/null /usr/src/lib/libc/Makefile /usr/src/share/mk/src.opts.mk /usr/src/share/mk/bsd.own.mk /usr/src/share/mk/bsd.opts.mk /usr/src/share/mk/bsd.cpu.mk /usr/src/share/mk/bsd.compiler.mk /usr/src/share/mk/bsd.linker.mk /usr/src/lib/libc/aarch64/Makefile.inc /usr/src/lib/libc/db/Makefile.inc /usr/src/lib/libc/db/btree/Makefile.inc /usr/src/lib/libc/db/db/Makefile.inc /usr/src/lib/libc/db/hash/Makefile.inc /usr/src/lib/libc/db/man/Makefile.inc /usr/src/lib/libc/db/mpool/Makefile.inc /usr/src/lib/libc/db/recno/Makefile.inc /usr/src/lib/libc/compat-43/Makefile.inc /usr/src/lib/libc/gdtoa/Makefile.inc /us r/src/lib/libc/gen/Makefile.inc /usr/src/lib/libc/aarch64/gen/Makefile.inc /usr/src/lib/libc/gmon/Makefile.inc /usr/src/lib/libc/iconv/Makefile.inc /usr/src/lib/libc_nonshared/Makefile.iconv /usr/src/lib/libc/inet/Makefile.inc /usr/src/lib/libc/isc/Makefile.inc /usr/src/lib/libc/locale/Makefile.inc /usr/src/lib/libc/md/Makefile.inc /usr/src/lib/libc/nameser/Makefile.inc /usr/src/lib/libc/net/Makefile.inc /usr/src/lib/libc/nls/Makefile.inc /usr/src/lib/libc/posix1e/Makefile.inc /usr/src/lib/libc/regex/Makefile.inc /usr/src/lib/libc/resolv/Makefile.inc /usr/src/lib/libc/stdio/Makefile.inc /usr/src/lib/libc/stdlib/Makefile.inc /usr/src/lib/libc/stdlib/jemalloc/Makefile.inc /usr/src/lib/libc/stdtime/Makefile.inc /usr/src/lib/libc/string/Makefile.inc /usr/src/lib/libc/aarch64/string/Makefile.inc /usr/src/lib/libc/sys/Makefile.inc /usr/src/sys/sys/syscall.mk /usr/src/lib/libc/aarch64/sys/Makefile.inc /usr/src/lib/libc/secure/Makefile.inc /usr/src/lib/libc/rpc/Makefile.inc /usr/src/lib/lib c/uuid/Makefile.inc /usr/src/lib/libc/xdr/Makefile.inc /usr/src/lib/libc/yp/Makefile.inc /usr/src/lib/libc/capability/Makefile.inc /usr/src/share/mk/bsd.lib.mk /usr/src/share/mk/bsd.init.mk /usr/src/share/mk/local.init.mk /usr/src/share/mk/src.init.mk /usr/src/lib/libc/../Makefile.inc /usr/src/share/mk/bsd.libnames.mk /usr/src/share/mk/src.libnames.mk /usr/src/share/mk/bsd.symver.mk /usr/src/share/mk/bsd.nls.mk /usr/src/share/mk/bsd.files.mk /usr/src/share/mk/bsd.incs.mk /usr/src/share/mk/bsd.confs.mk /usr/src/share/mk/bsd.links.mk /usr/src/share/mk/bsd.dep.mk /usr/src/share/mk/bsd.clang-analyze.mk /usr/src/share/mk/bsd.obj.mk /usr/src/share/mk/bsd.subdir.mk /usr/src/share/mk/bsd.sys.mk' .PATH='. /usr/src/lib/libc /usr/src/lib/libc/db/btree /usr/src/lib/libc/db/db /usr/src/lib/libc/db/hash /usr/src/lib/libc/db/man /usr/src/lib/libc/db/mpool /usr/src/lib/libc/db/recno /usr/src/lib/libc/compat-43 /usr/src/lib/libc/gdtoa /usr/src/lib/libc/aarch64/gen /usr/src/lib/libc/gen /usr/src/contrib/libc-pwcache /usr/src/contrib/libc-vis /usr/src/lib/libc/gmon /usr/src/lib/libc/iconv /usr/src/lib/libc/inet /usr/src/lib/libc/isc /usr/src/lib/libc/locale /usr/src/lib/libmd /usr/src/lib/libc/nameser /usr/src/lib/libc/net /usr/src/lib/libc/nls /usr/src/lib/libc/posix1e /usr/src/lib/libc/regex /usr/src/lib/libc/resolv /usr/src/lib/libc/stdio /usr/src/lib/libc/stdlib /usr/src/lib/libc/stdlib/jemalloc /usr/src/lib/libc/stdtime /usr/src/contrib/tzcode/stdtime /usr/src/lib/libc/aarch64/string /usr/src/lib/libc/string /usr/src/sys/libkern /usr/src/contrib/cortex-strings/src/aarch64 /usr/src/lib/libc/aarch64/sys /usr/src/lib/libc/sys /usr/src/lib/libc/secure /usr/src/lib/libc/rpc /usr/src/li b/libc/. /usr/src/lib/libc/uuid /usr/src/lib/libc/xdr /usr/src/lib/libc/yp /usr/src/sys/kern /usr/src/lib/libc/capability' 1 error === Mark Millard marklmi at yahoo.com ( dsl-only.net went away in early 2018-Mar) _______________________________________________ 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