On a virtual machine configured for crochet, building base system for armv6 fails: root@FreeBSD-11:/usr/src # uname -a FreeBSD FreeBSD-11.virtual 11.1-STABLE FreeBSD 11.1-STABLE #0 r331742: Thu Mar 29 21:30:37 UTC 2018 root@releng2.nyi.freebsd.org:/usr/obj/usr/src/sys/GENERIC amd64 root@FreeBSD-11:/usr/src # make XDEV=arm XDEV_ARCH=armv6 WITH_GCC=1 WITH_GCC_BOOTSTRAP=1 WITHOUT_CLANG=1 WITHOUT_CLANG_BOOTSTRAP=1 WITHOUT_CLANG_IS_CC=1 xdev xdev-links ... cc -isystem /usr/armv6-freebsd/usr/include -L/usr/armv6-freebsd/usr/lib -B/usr/armv6-freebsd/usr/lib --sysroot=/usr/armv6-freebsd/ -O -pipe -fpic -fvisibility=hidden -DVISIBILITY_HIDDEN -I/usr/src/contrib/libcxxrt -DEMIT_SYNC_ATOMICS -g -MD -MF.depend.fixunsdfdi.o -MTfixunsdfdi.o -std=gnu99 -c /usr/src/contrib/compiler-rt/lib/builtins/fixunsdfdi.c -o fixunsdfdi.o /usr/src/contrib/compiler-rt/lib/builtins/fixunsdfdi.c:50: warning: '__pcs__' attribute directive ignored cc -isystem /usr/armv6-freebsd/usr/include -L/usr/armv6-freebsd/usr/lib -B/usr/armv6-freebsd/usr/lib --sysroot=/usr/armv6-freebsd/ -O -pipe -fpic -fvisibility=hidden -DVISIBILITY_HIDDEN -I/usr/src/contrib/libcxxrt -DEMIT_SYNC_ATOMICS -g -MD -MF.depend.fixunsdfsivfp.o -MTfixunsdfsivfp.o -std=gnu99 -c /usr/src/contrib/compiler-rt/lib/builtins/arm/fixunsdfsivfp.S -o fixunsdfsivfp.o /usr/src/contrib/compiler-rt/lib/builtins/arm/fixunsdfsivfp.S: Assembler messages: /usr/src/contrib/compiler-rt/lib/builtins/arm/fixunsdfsivfp.S:27: Error: selected processor does not support `vmov d7,r0,r1' /usr/src/contrib/compiler-rt/lib/builtins/arm/fixunsdfsivfp.S:28: Error: selected processor does not support `vcvt.u32.f64 s15,d7' /usr/src/contrib/compiler-rt/lib/builtins/arm/fixunsdfsivfp.S:29: Error: selected processor does not support `vmov r0,s15' *** Error code 1 Stop. make[4]: stopped in /usr/src/lib/libcompiler_rt *** Error code 1 Stop. make[3]: stopped in /usr/src *** Error code 1 Stop. make[2]: stopped in /usr/src *** Error code 1 Stop. make[1]: stopped in /usr/src *** Error code 1 Stop. make: stopped in /usr/src